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-rw-r--r--erts/emulator/beam/atom.names9
-rw-r--r--erts/emulator/beam/beam_bif_load.c792
-rw-r--r--erts/emulator/beam/beam_bp.c2004
-rw-r--r--erts/emulator/beam/beam_bp.h233
-rw-r--r--erts/emulator/beam/beam_catches.c136
-rw-r--r--erts/emulator/beam/beam_catches.h11
-rw-r--r--erts/emulator/beam/beam_debug.c30
-rw-r--r--erts/emulator/beam/beam_emu.c421
-rw-r--r--erts/emulator/beam/beam_load.c600
-rw-r--r--erts/emulator/beam/beam_load.h49
-rw-r--r--erts/emulator/beam/beam_ranges.c349
-rw-r--r--erts/emulator/beam/bif.c815
-rw-r--r--erts/emulator/beam/bif.h39
-rw-r--r--erts/emulator/beam/bif.tab309
-rw-r--r--erts/emulator/beam/binary.c6
-rw-r--r--erts/emulator/beam/break.c180
-rw-r--r--erts/emulator/beam/code_ix.c168
-rw-r--r--erts/emulator/beam/code_ix.h141
-rw-r--r--erts/emulator/beam/copy.c2
-rw-r--r--erts/emulator/beam/dist.c350
-rw-r--r--erts/emulator/beam/dist.h14
-rw-r--r--erts/emulator/beam/erl_afit_alloc.c11
-rw-r--r--erts/emulator/beam/erl_afit_alloc.h5
-rw-r--r--erts/emulator/beam/erl_alloc.c51
-rw-r--r--erts/emulator/beam/erl_alloc.h2
-rw-r--r--erts/emulator/beam/erl_alloc.types49
-rw-r--r--erts/emulator/beam/erl_alloc_util.c920
-rw-r--r--erts/emulator/beam/erl_alloc_util.h55
-rw-r--r--erts/emulator/beam/erl_ao_firstfit_alloc.c16
-rw-r--r--erts/emulator/beam/erl_async.c18
-rw-r--r--erts/emulator/beam/erl_bestfit_alloc.c45
-rw-r--r--erts/emulator/beam/erl_bif_binary.c69
-rw-r--r--erts/emulator/beam/erl_bif_chksum.c13
-rw-r--r--erts/emulator/beam/erl_bif_ddll.c200
-rwxr-xr-xerts/emulator/beam/erl_bif_info.c424
-rw-r--r--erts/emulator/beam/erl_bif_op.c5
-rw-r--r--erts/emulator/beam/erl_bif_os.c2
-rw-r--r--erts/emulator/beam/erl_bif_port.c867
-rw-r--r--erts/emulator/beam/erl_bif_re.c27
-rw-r--r--erts/emulator/beam/erl_bif_timer.c22
-rw-r--r--erts/emulator/beam/erl_bif_trace.c819
-rw-r--r--erts/emulator/beam/erl_cpu_topology.c5
-rw-r--r--erts/emulator/beam/erl_db.c175
-rw-r--r--erts/emulator/beam/erl_db.h10
-rw-r--r--erts/emulator/beam/erl_db_tree.c12
-rw-r--r--erts/emulator/beam/erl_db_util.c63
-rw-r--r--erts/emulator/beam/erl_db_util.h8
-rw-r--r--erts/emulator/beam/erl_debug.c28
-rw-r--r--erts/emulator/beam/erl_driver.h55
-rw-r--r--erts/emulator/beam/erl_fun.h2
-rw-r--r--erts/emulator/beam/erl_gc.c83
-rw-r--r--erts/emulator/beam/erl_goodfit_alloc.c13
-rw-r--r--erts/emulator/beam/erl_init.c205
-rw-r--r--erts/emulator/beam/erl_lock_check.c27
-rw-r--r--erts/emulator/beam/erl_lock_check.h1
-rw-r--r--erts/emulator/beam/erl_message.c279
-rw-r--r--erts/emulator/beam/erl_message.h29
-rw-r--r--erts/emulator/beam/erl_monitors.c13
-rw-r--r--erts/emulator/beam/erl_monitors.h2
-rw-r--r--erts/emulator/beam/erl_mtrace.c2
-rw-r--r--erts/emulator/beam/erl_nif.c123
-rw-r--r--erts/emulator/beam/erl_nif.h6
-rw-r--r--erts/emulator/beam/erl_nif_api_funcs.h4
-rw-r--r--erts/emulator/beam/erl_node_container_utils.h67
-rw-r--r--erts/emulator/beam/erl_node_tables.c77
-rw-r--r--erts/emulator/beam/erl_node_tables.h9
-rw-r--r--erts/emulator/beam/erl_port.h944
-rw-r--r--erts/emulator/beam/erl_port_task.c2201
-rw-r--r--erts/emulator/beam/erl_port_task.h169
-rw-r--r--erts/emulator/beam/erl_printf_term.c5
-rw-r--r--erts/emulator/beam/erl_process.c4859
-rw-r--r--erts/emulator/beam/erl_process.h717
-rw-r--r--erts/emulator/beam/erl_process_dict.c6
-rw-r--r--erts/emulator/beam/erl_process_dump.c33
-rw-r--r--erts/emulator/beam/erl_process_lock.c547
-rw-r--r--erts/emulator/beam/erl_process_lock.h419
-rw-r--r--erts/emulator/beam/erl_ptab.c1566
-rw-r--r--erts/emulator/beam/erl_ptab.h472
-rw-r--r--erts/emulator/beam/erl_resolv_dns.c23
-rw-r--r--erts/emulator/beam/erl_resolv_nodns.c23
-rw-r--r--erts/emulator/beam/erl_smp.h28
-rw-r--r--erts/emulator/beam/erl_sys_driver.h1
-rw-r--r--erts/emulator/beam/erl_term.c6
-rw-r--r--erts/emulator/beam/erl_term.h36
-rw-r--r--erts/emulator/beam/erl_thr_progress.c288
-rw-r--r--erts/emulator/beam/erl_thr_progress.h73
-rw-r--r--erts/emulator/beam/erl_threads.h329
-rw-r--r--erts/emulator/beam/erl_time.h4
-rw-r--r--erts/emulator/beam/erl_time_sup.c85
-rw-r--r--erts/emulator/beam/erl_trace.c740
-rw-r--r--erts/emulator/beam/erl_trace.h141
-rw-r--r--erts/emulator/beam/erl_unicode.c79
-rw-r--r--erts/emulator/beam/erl_utils.h215
-rw-r--r--erts/emulator/beam/erlang_dtrace.d6
-rw-r--r--erts/emulator/beam/export.c354
-rw-r--r--erts/emulator/beam/export.h48
-rw-r--r--erts/emulator/beam/external.c6
-rwxr-xr-xerts/emulator/beam/global.h897
-rw-r--r--erts/emulator/beam/index.c23
-rw-r--r--erts/emulator/beam/index.h14
-rw-r--r--erts/emulator/beam/io.c4514
-rw-r--r--erts/emulator/beam/module.c159
-rw-r--r--erts/emulator/beam/module.h64
-rw-r--r--erts/emulator/beam/ops.tab18
-rw-r--r--erts/emulator/beam/register.c61
-rw-r--r--erts/emulator/beam/register.h19
-rw-r--r--erts/emulator/beam/sys.h212
-rw-r--r--erts/emulator/beam/utils.c328
108 files changed, 19619 insertions, 12689 deletions
diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names
index afcbd732df..c47a608215 100644
--- a/erts/emulator/beam/atom.names
+++ b/erts/emulator/beam/atom.names
@@ -94,6 +94,7 @@ atom asynchronous
atom atom
atom atom_used
atom attributes
+atom await_port_send_result
atom await_proc_exit
atom await_sched_wall_time_modifications
atom awaiting_load
@@ -152,6 +153,7 @@ atom connection_closed
atom cons
atom const
atom context_switches
+atom control
atom copy
atom cpu
atom cpu_timestamp
@@ -204,6 +206,7 @@ atom erlang
atom ERROR='ERROR'
atom error_handler
atom error_logger
+atom erts_internal
atom ets
atom ETS_TRANSFER='ETS-TRANSFER'
atom event
@@ -237,6 +240,7 @@ atom gc_end
atom gc_start
atom Ge='>='
atom generational
+atom get_data
atom get_seq_token
atom get_tcw
atom getenv
@@ -408,6 +412,7 @@ atom overlapped_io
atom owner
atom packet
atom packet_size
+atom parallelism
atom Plus='+'
atom pause
atom pending
@@ -419,12 +424,12 @@ atom pid
atom port
atom ports
atom port_count
+atom port_limit
atom print
atom priority
atom private
atom process
atom processes
-atom processes_trap
atom processes_used
atom process_count
atom process_display
@@ -434,6 +439,7 @@ atom procs
atom profile
atom protected
atom protection
+atom ptab_list_continue
atom public
atom purify
atom quantify
@@ -481,6 +487,7 @@ atom sequential_trace_token
atom serial
atom set
atom set_cpu_topology
+atom set_data
atom set_on_first_link
atom set_on_first_spawn
atom set_on_link
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index 02f37bf9bc..e0a4f86d2d 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -37,25 +37,83 @@
static void set_default_trace_pattern(Eterm module);
static Eterm check_process_code(Process* rp, Module* modp);
-static void delete_code(Process *c_p, ErtsProcLocks c_p_locks, Module* modp);
-static void delete_export_references(Eterm module);
-static int purge_module(int module);
+static void delete_code(Module* modp);
static void decrement_refc(BeamInstr* code);
static int is_native(BeamInstr* code);
static int any_heap_ref_ptrs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size);
static int any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size);
-static void remove_from_address_table(BeamInstr* code);
-Eterm
-load_module_2(BIF_ALIST_2)
+
+
+BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
{
- Eterm reason;
- Eterm* hp;
- int sz;
- byte* code;
+ Module* modp;
Eterm res;
+ ErtsCodeIndex code_ix;
+
+ if (is_not_atom(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+ code_ix = erts_active_code_ix();
+ if ((modp = erts_get_module(BIF_ARG_1, code_ix)) == NULL) {
+ return am_undefined;
+ }
+ erts_rlock_old_code(code_ix);
+ res = ((modp->curr.code && is_native(modp->curr.code)) ||
+ (modp->old.code != 0 && is_native(modp->old.code))) ?
+ am_true : am_false;
+ erts_runlock_old_code(code_ix);
+ return res;
+}
+
+BIF_RETTYPE code_make_stub_module_3(BIF_ALIST_3)
+{
+ Module* modp;
+ Eterm res;
+
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD3(bif_export[BIF_code_make_stub_module_3],
+ BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+ }
+
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+
+ modp = erts_get_module(BIF_ARG_1, erts_active_code_ix());
+
+ if (modp && modp->curr.num_breakpoints > 0) {
+ ASSERT(modp->curr.code != NULL);
+ erts_clear_module_break(modp);
+ ASSERT(modp->curr.num_breakpoints == 0);
+ }
+
+ erts_start_staging_code_ix();
+
+ res = erts_make_stub_module(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+
+ if (res == BIF_ARG_1) {
+ erts_end_staging_code_ix();
+ erts_commit_staging_code_ix();
+ }
+ else {
+ erts_abort_staging_code_ix();
+ }
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
+ return res;
+}
+
+BIF_RETTYPE
+prepare_loading_2(BIF_ALIST_2)
+{
byte* temp_alloc = NULL;
- struct LoaderState* stp;
+ byte* code;
+ Uint sz;
+ Binary* magic;
+ Eterm reason;
+ Eterm* hp;
+ Eterm res;
if (is_not_atom(BIF_ARG_1)) {
error:
@@ -65,108 +123,307 @@ load_module_2(BIF_ALIST_2)
if ((code = erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc)) == NULL) {
goto error;
}
- hp = HAlloc(BIF_P, 3);
- /*
- * Read the BEAM file and prepare the module for loading.
- */
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
sz = binary_size(BIF_ARG_2);
- reason = erts_prepare_loading(stp, BIF_P, BIF_P->group_leader,
+ reason = erts_prepare_loading(magic, BIF_P, BIF_P->group_leader,
&BIF_ARG_1, code, sz);
erts_free_aligned_binary_bytes(temp_alloc);
if (reason != NIL) {
+ hp = HAlloc(BIF_P, 3);
res = TUPLE2(hp, am_error, reason);
BIF_RET(res);
}
+ hp = HAlloc(BIF_P, PROC_BIN_SIZE);
+ res = erts_mk_magic_binary_term(&hp, &MSO(BIF_P), magic);
+ erts_refc_dec(&magic->refc, 1);
+ BIF_RET(res);
+}
+
+struct m {
+ Binary* code;
+ Eterm module;
+ Module* modp;
+ Uint exception;
+};
+
+static Eterm staging_epilogue(Process* c_p, int, Eterm res, int, struct m*, int);
+#ifdef ERTS_SMP
+static void smp_code_ix_commiter(void*);
+
+static struct /* Protected by code_write_permission */
+{
+ Process* stager;
+ ErtsThrPrgrLaterOp lop;
+}commiter_state;
+#endif
+
+static Eterm
+exception_list(Process* p, Eterm tag, struct m* mp, Sint exceptions)
+{
+ Eterm* hp = HAlloc(p, 3 + 2*exceptions);
+ Eterm res = NIL;
+
+ mp += exceptions - 1;
+ while (exceptions > 0) {
+ if (mp->exception) {
+ res = CONS(hp, mp->module, res);
+ hp += 2;
+ exceptions--;
+ }
+ mp--;
+ }
+ return TUPLE2(hp, tag, res);
+}
+
+
+BIF_RETTYPE
+finish_loading_1(BIF_ALIST_1)
+{
+ int i;
+ int n;
+ struct m* p = NULL;
+ Uint exceptions;
+ Eterm res;
+ int is_blocking = 0;
+ int do_commit = 0;
+
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD1(bif_export[BIF_finish_loading_1], BIF_P, BIF_ARG_1);
+ }
/*
- * Stop all other processes and finish the loading of the module.
+ * Validate the argument before we start loading; it must be a
+ * proper list where each element is a magic binary containing
+ * prepared (not previously loaded) code.
+ *
+ * First count the number of elements and allocate an array
+ * to keep the elements in.
*/
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
- reason = erts_finish_loading(stp, BIF_P, 0, &BIF_ARG_1);
- if (reason != NIL) {
- res = TUPLE2(hp, am_error, reason);
- } else {
- set_default_trace_pattern(BIF_ARG_1);
- res = TUPLE2(hp, am_module, BIF_ARG_1);
+ n = list_length(BIF_ARG_1);
+ if (n == -1) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ goto done;
}
+ p = erts_alloc(ERTS_ALC_T_LOADER_TMP, n*sizeof(struct m));
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- BIF_RET(res);
-}
+ /*
+ * We now know that the argument is a proper list. Validate
+ * and collect the binaries into the array.
+ */
-BIF_RETTYPE purge_module_1(BIF_ALIST_1)
-{
- int purge_res;
+ for (i = 0; i < n; i++) {
+ Eterm* cons = list_val(BIF_ARG_1);
+ Eterm term = CAR(cons);
+ ProcBin* pb;
- if (is_not_atom(BIF_ARG_1)) {
- BIF_ERROR(BIF_P, BADARG);
+ if (!ERTS_TERM_IS_MAGIC_BINARY(term)) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ goto done;
+ }
+ pb = (ProcBin*) binary_val(term);
+ p[i].code = pb->val;
+ p[i].module = erts_module_for_prepared_code(p[i].code);
+ if (p[i].module == NIL) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ goto done;
+ }
+ BIF_ARG_1 = CDR(cons);
}
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ /*
+ * Since we cannot handle atomic loading of a group of modules
+ * if one or more of them uses on_load, we will only allow one
+ * element in the list. This limitation is intended to be
+ * lifted in the future.
+ */
- erts_export_consolidate();
- purge_res = purge_module(atom_val(BIF_ARG_1));
+ if (n > 1) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, SYSTEM_LIMIT);
+ goto done;
+ }
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ /*
+ * All types are correct. There cannot be a BADARG from now on.
+ * Before we can start loading, we must check whether any of
+ * the modules already has old code. To avoid a race, we must
+ * not allow other process to initiate a code loading operation
+ * from now on.
+ */
- if (purge_res < 0) {
- BIF_ERROR(BIF_P, BADARG);
+ res = am_ok;
+ erts_start_staging_code_ix();
+
+ for (i = 0; i < n; i++) {
+ p[i].modp = erts_put_module(p[i].module);
+ }
+ for (i = 0; i < n; i++) {
+ if (p[i].modp->curr.num_breakpoints > 0 ||
+ p[i].modp->curr.num_traced_exports > 0 ||
+ erts_is_default_trace_enabled()) {
+ /* tracing involved, fallback with thread blocking */
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+ is_blocking = 1;
+ break;
+ }
}
- BIF_RET(am_true);
-}
-BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
-{
- Module* modp;
+ if (is_blocking) {
+ for (i = 0; i < n; i++) {
+ if (p[i].modp->curr.num_breakpoints) {
+ erts_clear_module_break(p[i].modp);
+ ASSERT(p[i].modp->curr.num_breakpoints == 0);
+ }
+ }
+ }
- if (is_not_atom(BIF_ARG_1)) {
- BIF_ERROR(BIF_P, BADARG);
+ exceptions = 0;
+ for (i = 0; i < n; i++) {
+ p[i].exception = 0;
+ if (p[i].modp->curr.code && p[i].modp->old.code) {
+ p[i].exception = 1;
+ exceptions++;
+ }
}
- if ((modp = erts_get_module(BIF_ARG_1)) == NULL) {
- return am_undefined;
+
+ if (exceptions) {
+ res = exception_list(BIF_P, am_not_purged, p, exceptions);
+ } else {
+ /*
+ * Now we can load all code. This can't fail.
+ */
+
+ exceptions = 0;
+ for (i = 0; i < n; i++) {
+ Eterm mod;
+ Eterm retval;
+
+ erts_refc_inc(&p[i].code->refc, 1);
+ retval = erts_finish_loading(p[i].code, BIF_P, 0, &mod);
+ ASSERT(retval == NIL || retval == am_on_load);
+ if (retval == am_on_load) {
+ p[i].exception = 1;
+ exceptions++;
+ }
+ }
+
+ /*
+ * Check whether any module has an on_load_handler.
+ */
+
+ if (exceptions) {
+ res = exception_list(BIF_P, am_on_load, p, exceptions);
+ }
+ do_commit = 1;
}
- return ((modp->code && is_native(modp->code)) ||
- (modp->old_code != 0 && is_native(modp->old_code))) ?
- am_true : am_false;
+
+done:
+ return staging_epilogue(BIF_P, do_commit, res, is_blocking, p, n);
}
-BIF_RETTYPE code_make_stub_module_3(BIF_ALIST_3)
-{
- Eterm res;
+static Eterm
+staging_epilogue(Process* c_p, int commit, Eterm res, int is_blocking,
+ struct m* loaded, int nloaded)
+{
+#ifdef ERTS_SMP
+ if (is_blocking || !commit)
+#endif
+ {
+ if (commit) {
+ erts_end_staging_code_ix();
+ erts_commit_staging_code_ix();
+ if (loaded) {
+ int i;
+ for (i=0; i < nloaded; i++) {
+ set_default_trace_pattern(loaded[i].module);
+ }
+ }
+ }
+ else {
+ erts_abort_staging_code_ix();
+ }
+ if (loaded) {
+ erts_free(ERTS_ALC_T_LOADER_TMP, loaded);
+ }
+ if (is_blocking) {
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
+ }
+ erts_release_code_write_permission();
+ return res;
+ }
+#ifdef ERTS_SMP
+ else {
+ ASSERT(is_value(res));
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ if (loaded) {
+ erts_free(ERTS_ALC_T_LOADER_TMP, loaded);
+ }
+ erts_end_staging_code_ix();
+ /*
+ * Now we must wait for all schedulers to do a memory barrier before
+ * we can commit and let them access the new staged code. This allows
+ * schedulers to read active code_ix in a safe way while executing
+ * without any memory barriers at all.
+ */
+ ASSERT(commiter_state.stager == NULL);
+ commiter_state.stager = c_p;
+ erts_schedule_thr_prgr_later_op(smp_code_ix_commiter, NULL, &commiter_state.lop);
+ erts_smp_proc_inc_refc(c_p);
+ erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
+ /*
+ * smp_code_ix_commiter() will do the rest "later"
+ * and resume this process to return 'res'.
+ */
+ ERTS_BIF_YIELD_RETURN(c_p, res);
+ }
+#endif
+}
- erts_export_consolidate();
- res = erts_make_stub_module(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- return res;
+#ifdef ERTS_SMP
+static void smp_code_ix_commiter(void* null)
+{
+ Process* p = commiter_state.stager;
+
+ erts_commit_staging_code_ix();
+ erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
+ if (!ERTS_PROC_IS_EXITING(p)) {
+ erts_resume(p, ERTS_PROC_LOCK_STATUS);
+ }
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_proc_dec_refc(p);
+#ifdef DEBUG
+ commiter_state.stager = NULL;
+#endif
+ erts_release_code_write_permission();
}
+#endif /* ERTS_SMP */
+
+
BIF_RETTYPE
check_old_code_1(BIF_ALIST_1)
{
+ ErtsCodeIndex code_ix;
Module* modp;
+ Eterm res = am_false;
if (is_not_atom(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
- modp = erts_get_module(BIF_ARG_1);
- if (modp == NULL) { /* Doesn't exist. */
- BIF_RET(am_false);
- } else if (modp->old_code == NULL) { /* No old code. */
- BIF_RET(am_false);
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(BIF_ARG_1, code_ix);
+ if (modp != NULL) {
+ erts_rlock_old_code(code_ix);
+ if (modp->old.code != NULL) {
+ res = am_true;
+ }
+ erts_runlock_old_code(code_ix);
}
- BIF_RET(am_true);
+ BIF_RET(res);
}
Eterm
@@ -180,14 +437,19 @@ check_process_code_2(BIF_ALIST_2)
}
if (is_internal_pid(BIF_ARG_1)) {
Eterm res;
- if (internal_pid_index(BIF_ARG_1) >= erts_max_processes)
- goto error;
- modp = erts_get_module(BIF_ARG_2);
+ ErtsCodeIndex code_ix;
+
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(BIF_ARG_2, code_ix);
if (modp == NULL) { /* Doesn't exist. */
return am_false;
- } else if (modp->old_code == NULL) { /* No old code. */
+ }
+ erts_rlock_old_code(code_ix);
+ if (modp->old.code == NULL) { /* No old code. */
+ erts_runlock_old_code(code_ix);
return am_false;
}
+ erts_runlock_old_code(code_ix);
#ifdef ERTS_SMP
rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN,
@@ -202,7 +464,14 @@ check_process_code_2(BIF_ALIST_2)
ERTS_BIF_YIELD2(bif_export[BIF_check_process_code_2], BIF_P,
BIF_ARG_1, BIF_ARG_2);
}
- res = check_process_code(rp, modp);
+ erts_rlock_old_code(code_ix);
+ if (modp->old.code != NULL) { /* must check again */
+ res = check_process_code(rp, modp);
+ }
+ else {
+ res = am_false;
+ }
+ erts_runlock_old_code(code_ix);
#ifdef ERTS_SMP
if (BIF_P != rp) {
erts_resume(rp, ERTS_PROC_LOCK_MAIN);
@@ -223,56 +492,71 @@ check_process_code_2(BIF_ALIST_2)
BIF_RETTYPE delete_module_1(BIF_ALIST_1)
{
- int res;
+ ErtsCodeIndex code_ix;
+ Module* modp;
+ int is_blocking = 0;
+ int success = 0;
+ Eterm res = NIL;
- if (is_not_atom(BIF_ARG_1))
- goto badarg;
+ if (is_not_atom(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD1(bif_export[BIF_delete_module_1], BIF_P, BIF_ARG_1);
+ }
{
- Module *modp = erts_get_module(BIF_ARG_1);
+ erts_start_staging_code_ix();
+ code_ix = erts_staging_code_ix();
+ modp = erts_get_module(BIF_ARG_1, code_ix);
if (!modp) {
res = am_undefined;
}
- else if (modp->old_code != 0) {
+ else if (modp->old.code != 0) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
erts_dsprintf(dsbufp, "Module %T must be purged before loading\n",
BIF_ARG_1);
erts_send_error_to_logger(BIF_P->group_leader, dsbufp);
- res = am_badarg;
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
}
else {
- delete_export_references(BIF_ARG_1);
- delete_code(BIF_P, 0, modp);
+ if (modp->curr.num_breakpoints > 0 ||
+ modp->curr.num_traced_exports > 0) {
+ /* we have tracing, retry single threaded */
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+ is_blocking = 1;
+ if (modp->curr.num_breakpoints) {
+ erts_clear_module_break(modp);
+ ASSERT(modp->curr.num_breakpoints == 0);
+ }
+ }
+ delete_code(modp);
res = am_true;
+ success = 1;
}
}
-
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
-
- if (res == am_badarg) {
- badarg:
- BIF_ERROR(BIF_P, BADARG);
- }
- BIF_RET(res);
+ return staging_epilogue(BIF_P, success, res, is_blocking, NULL, 0);
}
BIF_RETTYPE module_loaded_1(BIF_ALIST_1)
{
Module* modp;
+ ErtsCodeIndex code_ix;
+ Eterm res = am_false;
if (is_not_atom(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
- if ((modp = erts_get_module(BIF_ARG_1)) == NULL ||
- modp->code == NULL ||
- modp->code[MI_ON_LOAD_FUNCTION_PTR] != 0) {
- BIF_RET(am_false);
+ code_ix = erts_active_code_ix();
+ if ((modp = erts_get_module(BIF_ARG_1, code_ix)) != NULL) {
+ if (modp->curr.code != NULL
+ && modp->curr.code[MI_ON_LOAD_FUNCTION_PTR] == 0) {
+ res = am_true;
+ }
}
- BIF_RET(am_true);
+ BIF_RET(res);
}
BIF_RETTYPE pre_loaded_0(BIF_ALIST_0)
@@ -282,27 +566,28 @@ BIF_RETTYPE pre_loaded_0(BIF_ALIST_0)
BIF_RETTYPE loaded_0(BIF_ALIST_0)
{
+ ErtsCodeIndex code_ix = erts_active_code_ix();
+ Module* modp;
Eterm previous = NIL;
Eterm* hp;
int i;
int j = 0;
-
- for (i = 0; i < module_code_size(); i++) {
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
+
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ if ((modp = module_code(i, code_ix)) != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
j++;
}
}
if (j > 0) {
hp = HAlloc(BIF_P, j*2);
- for (i = 0; i < module_code_size(); i++) {
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
- previous = CONS(hp, make_atom(module_code(i)->module),
- previous);
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ if ((modp=module_code(i,code_ix)) != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
+ previous = CONS(hp, make_atom(modp->module), previous);
hp += 2;
}
}
@@ -312,54 +597,65 @@ BIF_RETTYPE loaded_0(BIF_ALIST_0)
BIF_RETTYPE call_on_load_function_1(BIF_ALIST_1)
{
- Module* modp = erts_get_module(BIF_ARG_1);
- Eterm on_load;
+ Module* modp = erts_get_module(BIF_ARG_1, erts_active_code_ix());
- if (!modp || modp->code == 0) {
- error:
- BIF_ERROR(BIF_P, BADARG);
+ if (modp && modp->curr.code) {
+ BIF_TRAP_CODE_PTR_0(BIF_P, modp->curr.code[MI_ON_LOAD_FUNCTION_PTR]);
}
- if ((on_load = modp->code[MI_ON_LOAD_FUNCTION_PTR]) == 0) {
- goto error;
+ else {
+ BIF_ERROR(BIF_P, BADARG);
}
- BIF_TRAP_CODE_PTR_0(BIF_P, on_load);
}
BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
{
- Module* modp = erts_get_module(BIF_ARG_1);
+ ErtsCodeIndex code_ix;
+ Module* modp;
Eterm on_load;
- if (!modp || modp->code == 0) {
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_finish_after_on_load_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
+
+ /* ToDo: Use code_ix staging instead of thread blocking */
+
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(BIF_ARG_1, code_ix);
+
+ if (!modp || modp->curr.code == 0) {
error:
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
BIF_ERROR(BIF_P, BADARG);
}
- if ((on_load = modp->code[MI_ON_LOAD_FUNCTION_PTR]) == 0) {
+ if ((on_load = modp->curr.code[MI_ON_LOAD_FUNCTION_PTR]) == 0) {
goto error;
}
if (BIF_ARG_2 != am_false && BIF_ARG_2 != am_true) {
goto error;
}
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
-
if (BIF_ARG_2 == am_true) {
int i;
/*
* The on_load function succeded. Fix up export entries.
*/
- for (i = 0; i < export_list_size(); i++) {
- Export *ep = export_list(i);
+ for (i = 0; i < export_list_size(code_ix); i++) {
+ Export *ep = export_list(i,code_ix);
if (ep != NULL &&
ep->code[0] == BIF_ARG_1 &&
ep->code[4] != 0) {
- ep->address = (void *) ep->code[4];
+ ep->addressv[code_ix] = (void *) ep->code[4];
ep->code[4] = 0;
}
}
- modp->code[MI_ON_LOAD_FUNCTION_PTR] = 0;
+ modp->curr.code[MI_ON_LOAD_FUNCTION_PTR] = 0;
set_default_trace_pattern(BIF_ARG_1);
} else if (BIF_ARG_2 == am_false) {
BeamInstr* code;
@@ -370,19 +666,21 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
* This is an combination of delete and purge. We purge
* the current code; the old code is not touched.
*/
- erts_total_code_size -= modp->code_length;
- code = modp->code;
- end = (BeamInstr *)((char *)code + modp->code_length);
+ erts_total_code_size -= modp->curr.code_length;
+ code = modp->curr.code;
+ end = (BeamInstr *)((char *)code + modp->curr.code_length);
erts_cleanup_funs_on_purge(code, end);
- beam_catches_delmod(modp->catches, code, modp->code_length);
+ beam_catches_delmod(modp->curr.catches, code, modp->curr.code_length,
+ erts_active_code_ix());
erts_free(ERTS_ALC_T_CODE, (void *) code);
- modp->code = NULL;
- modp->code_length = 0;
- modp->catches = BEAM_CATCHES_NIL;
- remove_from_address_table(code);
+ modp->curr.code = NULL;
+ modp->curr.code_length = 0;
+ modp->curr.catches = BEAM_CATCHES_NIL;
+ erts_remove_from_ranges(code);
}
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
BIF_RET(am_true);
}
@@ -403,11 +701,11 @@ set_default_trace_pattern(Eterm module)
if (trace_pattern_is_on) {
Eterm mfa[1];
mfa[0] = module;
- (void) erts_set_trace_pattern(mfa, 1,
+ (void) erts_set_trace_pattern(0, mfa, 1,
match_spec,
meta_match_spec,
1, trace_pattern_flags,
- meta_tracer_pid);
+ meta_tracer_pid, 1);
}
}
@@ -427,10 +725,10 @@ check_process_code(Process* rp, Module* modp)
/*
* Pick up limits for the module.
*/
- start = modp->old_code;
- end = (BeamInstr *)((char *)start + modp->old_code_length);
+ start = modp->old.code;
+ end = (BeamInstr *)((char *)start + modp->old.code_length);
mod_start = (char *) start;
- mod_size = modp->old_code_length;
+ mod_size = modp->old.code_length;
/*
* Check if current instruction or continuation pointer points into module.
@@ -562,10 +860,10 @@ check_process_code(Process* rp, Module* modp)
done_gc = 1;
FLAGS(rp) |= F_NEED_FULLSWEEP;
(void) erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity);
- literals = (Eterm *) modp->old_code[MI_LITERALS_START];
- lit_size = (Eterm *) modp->old_code[MI_LITERALS_END] - literals;
+ literals = (Eterm *) modp->old.code[MI_LITERALS_START];
+ lit_size = (Eterm *) modp->old.code[MI_LITERALS_END] - literals;
oh = (struct erl_off_heap_header *)
- modp->old_code[MI_LITERALS_OFF_HEAP];
+ modp->old.code[MI_LITERALS_OFF_HEAP];
erts_garbage_collect_literals(rp, literals, lit_size, oh);
}
}
@@ -624,53 +922,82 @@ any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size)
#undef in_area
-
-static int
-purge_module(int module)
+BIF_RETTYPE purge_module_1(BIF_ALIST_1)
{
+ ErtsCodeIndex code_ix;
BeamInstr* code;
BeamInstr* end;
Module* modp;
+ int is_blocking = 0;
+ Eterm ret;
- /*
- * Correct module?
- */
-
- if ((modp = erts_get_module(make_atom(module))) == NULL) {
- return -2;
+ if (is_not_atom(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
}
- /*
- * Any code to purge?
- */
- if (modp->old_code == 0) {
- return -1;
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD1(bif_export[BIF_purge_module_1], BIF_P, BIF_ARG_1);
}
+ code_ix = erts_active_code_ix();
+
/*
- * Unload any NIF library
+ * Correct module?
*/
- if (modp->old_nif != NULL) {
- erts_unload_nif(modp->old_nif);
- modp->old_nif = NULL;
+
+ if ((modp = erts_get_module(BIF_ARG_1, code_ix)) == NULL) {
+ ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
}
+ else {
+ erts_rwlock_old_code(code_ix);
- /*
- * Remove the old code.
- */
- ASSERT(erts_total_code_size >= modp->old_code_length);
- erts_total_code_size -= modp->old_code_length;
- code = modp->old_code;
- end = (BeamInstr *)((char *)code + modp->old_code_length);
- erts_cleanup_funs_on_purge(code, end);
- beam_catches_delmod(modp->old_catches, code, modp->old_code_length);
- decrement_refc(code);
- erts_free(ERTS_ALC_T_CODE, (void *) code);
- modp->old_code = NULL;
- modp->old_code_length = 0;
- modp->old_catches = BEAM_CATCHES_NIL;
- remove_from_address_table(code);
- return 0;
+ /*
+ * Any code to purge?
+ */
+ if (modp->old.code == 0) {
+ ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
+ }
+ else {
+ /*
+ * Unload any NIF library
+ */
+ if (modp->old.nif != NULL) {
+ /* ToDo: Do unload nif without blocking */
+ erts_rwunlock_old_code(code_ix);
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+ is_blocking = 1;
+ erts_rwlock_old_code(code_ix);
+ erts_unload_nif(modp->old.nif);
+ modp->old.nif = NULL;
+ }
+
+ /*
+ * Remove the old code.
+ */
+ ASSERT(erts_total_code_size >= modp->old.code_length);
+ erts_total_code_size -= modp->old.code_length;
+ code = modp->old.code;
+ end = (BeamInstr *)((char *)code + modp->old.code_length);
+ erts_cleanup_funs_on_purge(code, end);
+ beam_catches_delmod(modp->old.catches, code, modp->old.code_length,
+ code_ix);
+ decrement_refc(code);
+ erts_free(ERTS_ALC_T_CODE, (void *) code);
+ modp->old.code = NULL;
+ modp->old.code_length = 0;
+ modp->old.catches = BEAM_CATCHES_NIL;
+ erts_remove_from_ranges(code);
+ ERTS_BIF_PREP_RET(ret, am_true);
+ }
+ erts_rwunlock_old_code(code_ix);
+ }
+ if (is_blocking) {
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ }
+ erts_release_code_write_permission();
+ return ret;
}
static void
@@ -690,92 +1017,48 @@ decrement_refc(BeamInstr* code)
}
}
-static void
-remove_from_address_table(BeamInstr* code)
-{
- int i;
-
- for (i = 0; i < num_loaded_modules; i++) {
- if (modules[i].start == code) {
- num_loaded_modules--;
- while (i < num_loaded_modules) {
- modules[i] = modules[i+1];
- i++;
- }
- mid_module = &modules[num_loaded_modules/2];
- return;
- }
- }
- ASSERT(0); /* Not found? */
-}
-
-
/*
- * Move code from current to old.
+ * Move code from current to old and null all export entries for the module
*/
-static void
-delete_code(Process *c_p, ErtsProcLocks c_p_locks, Module* modp)
-{
-#ifdef ERTS_ENABLE_LOCK_CHECK
-#ifdef ERTS_SMP
- if (c_p && c_p_locks)
- erts_proc_lc_chk_only_proc_main(c_p);
- else
-#endif
- erts_lc_check_exact(NULL, 0);
-#endif
-
- /*
- * Clear breakpoints if any
- */
- if (modp->code != NULL && modp->code[MI_NUM_BREAKPOINTS] > 0) {
- if (c_p && c_p_locks)
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
- erts_clear_module_break(modp);
- modp->code[MI_NUM_BREAKPOINTS] = 0;
- erts_smp_thr_progress_unblock();
- if (c_p && c_p_locks)
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
- }
- modp->old_code = modp->code;
- modp->old_code_length = modp->code_length;
- modp->old_catches = modp->catches;
- modp->old_nif = modp->nif;
- modp->code = NULL;
- modp->code_length = 0;
- modp->catches = BEAM_CATCHES_NIL;
- modp->nif = NULL;
-}
-
-
-/* null all references on the export table for the module called with the
- atom index below */
-
static void
-delete_export_references(Eterm module)
+delete_code(Module* modp)
{
+ ErtsCodeIndex code_ix = erts_staging_code_ix();
+ Eterm module = make_atom(modp->module);
int i;
- ASSERT(is_atom(module));
-
- for (i = 0; i < export_list_size(); i++) {
- Export *ep = export_list(i);
+ for (i = 0; i < export_list_size(code_ix); i++) {
+ Export *ep = export_list(i, code_ix);
if (ep != NULL && (ep->code[0] == module)) {
- if (ep->address == ep->code+3 &&
- (ep->code[3] == (BeamInstr) em_apply_bif)) {
- continue;
+ if (ep->addressv[code_ix] == ep->code+3) {
+ if (ep->code[3] == (BeamInstr) em_apply_bif) {
+ continue;
+ }
+ else if (ep->code[3] ==
+ (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
+ ASSERT(modp->curr.num_traced_exports > 0);
+ erts_clear_export_break(modp, ep->code+3);
+ }
+ else ASSERT(ep->code[3] == (BeamInstr) em_call_error_handler
+ || !erts_initialized);
}
- ep->address = ep->code+3;
+ ep->addressv[code_ix] = ep->code+3;
ep->code[3] = (BeamInstr) em_call_error_handler;
ep->code[4] = 0;
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = NULL;
}
}
+
+ ASSERT(modp->curr.num_breakpoints == 0);
+ ASSERT(modp->curr.num_traced_exports == 0);
+ modp->old = modp->curr;
+ modp->curr.code = NULL;
+ modp->curr.code_length = 0;
+ modp->curr.catches = BEAM_CATCHES_NIL;
+ modp->curr.nif = NULL;
}
-
+
Eterm
beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
@@ -787,11 +1070,10 @@ beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
* if not, delete old code; error if old code already exists.
*/
- if (modp->code != NULL && modp->old_code != NULL) {
+ if (modp->curr.code != NULL && modp->old.code != NULL) {
return am_not_purged;
- } else if (modp->old_code == NULL) { /* Make the current version old. */
- delete_code(c_p, c_p_locks, modp);
- delete_export_references(module);
+ } else if (modp->old.code == NULL) { /* Make the current version old. */
+ delete_code(modp);
}
return NIL;
}
diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index d772bea02f..c1e11f6448 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -44,67 +44,34 @@
#define ReAlloc(P, SIZ) erts_realloc(ERTS_ALC_T_BPD, (P), (SZ))
#define Free(P) erts_free(ERTS_ALC_T_BPD, (P))
-/*
-** Doubly linked ring macros
-*/
-
-#define BpInit(a,i) \
-do { \
- (a)->orig_instr = (i); \
- (a)->next = (a); \
- (a)->prev = (a); \
-} while (0)
-
-#define BpSpliceNext(a,b) \
-do { \
- register BpData *c = (a), *d = (b), *e; \
- e = c->next->prev; \
- c->next->prev = d->next->prev; \
- d->next->prev = e; \
- e = c->next; \
- c->next = d->next; \
- d->next = e; \
-} while (0)
-
-#define BpSplicePrev(a,b) \
-do { \
- register BpData *c = (a), *d = (b), *e; \
- e = c->prev->next; \
- c->prev->next = d->prev->next; \
- d->prev->next = e; \
- e = c->prev; \
- c->prev = d->prev; \
- d->prev = e; \
-} while (0)
-
-#ifdef DEBUG
-# define BpSingleton(a) ((a)->next == (a) && (a)->prev == (a))
+#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP)
+# define ERTS_SMP_REQ_PROC_MAIN_LOCK(P) \
+ if ((P)) erts_proc_lc_require_lock((P), ERTS_PROC_LOCK_MAIN)
+# define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P) \
+ if ((P)) erts_proc_lc_unrequire_lock((P), ERTS_PROC_LOCK_MAIN)
#else
-# define BpSingleton(a) ((a)->next == (a))
+# define ERTS_SMP_REQ_PROC_MAIN_LOCK(P)
+# define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P)
#endif
-#define BpInitAndSpliceNext(a,i,b) \
-do { \
- (a)->orig_instr = (i); \
- (a)->prev = (b); \
- (b)->next->prev = (a); \
- (a)->next = (b)->next; \
- (b)->next = (a); \
-} while (0)
+#define ERTS_BPF_LOCAL_TRACE 0x01
+#define ERTS_BPF_META_TRACE 0x02
+#define ERTS_BPF_COUNT 0x04
+#define ERTS_BPF_COUNT_ACTIVE 0x08
+#define ERTS_BPF_DEBUG 0x10
+#define ERTS_BPF_TIME_TRACE 0x20
+#define ERTS_BPF_TIME_TRACE_ACTIVE 0x40
+#define ERTS_BPF_GLOBAL_TRACE 0x80
-#define BpInitAndSplicePrev(a,i,b) \
-do { \
- (a)->orig_instr = (i); \
- (a)->next = (b); \
- (b)->prev->next = (a); \
- (a)->prev = (b)->prev; \
- (b)->prev = (a); \
-} while (0)
+#define ERTS_BPF_ALL 0xFF
+extern BeamInstr beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */
+extern BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */
+extern BeamInstr beam_exception_trace[1]; /* OpCode(i_exception_trace) */
+extern BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
-#define BREAK_IS_BIF (1)
-#define BREAK_IS_ERL (0)
-
+erts_smp_atomic32_t erts_active_bp_index;
+erts_smp_atomic32_t erts_staging_bp_index;
/* *************************************************************************
** Local prototypes
@@ -113,26 +80,30 @@ do { \
/*
** Helpers
*/
-
-static int set_break(Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid);
-static int set_module_break(Module *modp, Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid);
-static int set_function_break(Module *modp, BeamInstr *pc, int bif,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid);
-
-static int clear_break(Eterm mfa[3], int specified,
- BeamInstr break_op);
-static int clear_module_break(Module *modp, Eterm mfa[3], int specified,
- BeamInstr break_op);
-static int clear_function_break(Module *modp, BeamInstr *pc, int bif,
- BeamInstr break_op);
-
-static BpData *is_break(BeamInstr *pc, BeamInstr break_op);
-static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op);
+static Eterm do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg,
+ int local, Binary* ms, Eterm tracer_pid);
+static void set_break(BpFunctions* f, Binary *match_spec, Uint break_flags,
+ enum erts_break_op count_op, Eterm tracer_pid);
+static void set_function_break(BeamInstr *pc,
+ Binary *match_spec,
+ Uint break_flags,
+ enum erts_break_op count_op,
+ Eterm tracer_pid);
+
+static void clear_break(BpFunctions* f, Uint break_flags);
+static int clear_function_break(BeamInstr *pc, Uint break_flags);
+
+static BpDataTime* get_time_break(BeamInstr *pc);
+static GenericBpData* check_break(BeamInstr *pc, Uint break_flags);
+static void bp_time_diff(bp_data_time_item_t *item,
+ process_breakpoint_time_t *pbt,
+ Uint ms, Uint s, Uint us);
+
+static void bp_meta_unref(BpMetaPid* bmp);
+static void bp_count_unref(BpCount* bcp);
+static void bp_time_unref(BpDataTime* bdt);
+static void consolidate_bp_data(Module* modp, BeamInstr* pc, int local);
+static void uninstall_breakpoint(BeamInstr* pc);
/* bp_hash */
#define BP_TIME_ADD(pi0, pi1) \
@@ -152,240 +123,996 @@ static ERTS_INLINE bp_data_time_item_t * bp_hash_get(bp_time_hash_t *hash, bp_da
static ERTS_INLINE bp_data_time_item_t * bp_hash_put(bp_time_hash_t *hash, bp_data_time_item_t *sitem);
static void bp_hash_delete(bp_time_hash_t *hash);
-
/* *************************************************************************
** External interfaces
*/
-erts_smp_spinlock_t erts_bp_lock;
-
void
erts_bp_init(void) {
- erts_smp_spinlock_init(&erts_bp_lock, "breakpoints");
+ erts_smp_atomic32_init_nob(&erts_active_bp_index, 0);
+ erts_smp_atomic32_init_nob(&erts_staging_bp_index, 1);
}
-int
-erts_set_trace_break(Eterm mfa[3], int specified, Binary *match_spec,
- Eterm tracer_pid) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, match_spec,
- (BeamInstr) BeamOp(op_i_trace_breakpoint), 0, tracer_pid);
+
+void
+erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified)
+{
+ ErtsCodeIndex code_ix = erts_active_code_ix();
+ Uint max_funcs = 0;
+ int current;
+ int max_modules = module_code_size(code_ix);
+ int num_modules = 0;
+ Module* modp;
+ Module** module;
+ Uint i;
+
+ module = (Module **) Alloc(max_modules*sizeof(Module *));
+ num_modules = 0;
+ for (current = 0; current < max_modules; current++) {
+ modp = module_code(current, code_ix);
+ if (modp->curr.code) {
+ max_funcs += modp->curr.code[MI_NUM_FUNCTIONS];
+ module[num_modules++] = modp;
+ }
+ }
+
+ f->matching = (BpFunction *) Alloc(max_funcs*sizeof(BpFunction));
+ i = 0;
+ for (current = 0; current < num_modules; current++) {
+ BeamInstr** code_base = (BeamInstr **) module[current]->curr.code;
+ BeamInstr* code;
+ Uint num_functions = (Uint)(UWord) code_base[MI_NUM_FUNCTIONS];
+ Uint fi;
+
+ if (specified > 0) {
+ if (mfa[0] != make_atom(module[current]->module)) {
+ /* Wrong module name */
+ continue;
+ }
+ }
+
+ for (fi = 0; fi < num_functions; fi++) {
+ BeamInstr* pc;
+ int wi;
+
+ code = code_base[MI_FUNCTIONS+fi];
+ ASSERT(code[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+ pc = code+5;
+ if (erts_is_native_break(pc)) {
+ continue;
+ }
+ if (is_nil(code[3])) { /* Ignore BIF stub */
+ continue;
+ }
+ for (wi = 0;
+ wi < specified && (Eterm) code[2+wi] == mfa[wi];
+ wi++) {
+ /* Empty loop body */
+ }
+ if (wi == specified) {
+ /* Store match */
+ f->matching[i].pc = pc;
+ f->matching[i].mod = module[current];
+ i++;
+ }
+ }
+ }
+ f->matched = i;
+ Free(module);
}
-int
-erts_set_mtrace_break(Eterm mfa[3], int specified, Binary *match_spec,
- Eterm tracer_pid) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, match_spec,
- (BeamInstr) BeamOp(op_i_mtrace_breakpoint), 0, tracer_pid);
+void
+erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified)
+{
+ ErtsCodeIndex code_ix = erts_active_code_ix();
+ int i;
+ int num_exps = export_list_size(code_ix);
+ int ne;
+
+ f->matching = (BpFunction *) Alloc(num_exps*sizeof(BpFunction));
+ ne = 0;
+ for (i = 0; i < num_exps; i++) {
+ Export* ep = export_list(i, code_ix);
+ BeamInstr* pc;
+ int j;
+
+ for (j = 0; j < specified && mfa[j] == ep->code[j]; j++) {
+ /* Empty loop body */
+ }
+ if (j < specified) {
+ continue;
+ }
+ pc = ep->code+3;
+ if (ep->addressv[code_ix] == pc) {
+ if ((*pc == (BeamInstr) em_apply_bif ||
+ *pc == (BeamInstr) em_call_error_handler)) {
+ continue;
+ }
+ ASSERT(*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint));
+ } else if (erts_is_native_break(ep->addressv[code_ix])) {
+ continue;
+ }
+
+ f->matching[ne].pc = pc;
+ f->matching[ne].mod = erts_get_module(ep->code[0], code_ix);
+ ne++;
+
+ }
+ f->matched = ne;
}
-/* set breakpoint data for on exported bif entry */
+void
+erts_bp_free_matched_functions(BpFunctions* f)
+{
+ Free(f->matching);
+}
void
-erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- set_function_break(NULL, pc, BREAK_IS_BIF, match_spec, (BeamInstr) BeamOp(op_i_mtrace_breakpoint), 0, tracer_pid);
+erts_consolidate_bp_data(BpFunctions* f, int local)
+{
+ BpFunction* fs = f->matching;
+ Uint i;
+ Uint n = f->matched;
+
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission());
+
+ for (i = 0; i < n; i++) {
+ consolidate_bp_data(fs[i].mod, fs[i].pc, local);
+ }
}
-void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op count_op) {
- set_function_break(NULL, pc, BREAK_IS_BIF, NULL, (BeamInstr) BeamOp(op_i_time_breakpoint), count_op, NIL);
+void
+erts_consolidate_bif_bp_data(void)
+{
+ int i;
+
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission());
+ for (i = 0; i < BIF_SIZE; i++) {
+ Export *ep = bif_export[i];
+ consolidate_bp_data(0, ep->code+3, 0);
+ }
}
-void erts_clear_time_trace_bif(BeamInstr *pc) {
- clear_function_break(NULL, pc, BREAK_IS_BIF, (BeamInstr) BeamOp(op_i_time_breakpoint));
+static void
+consolidate_bp_data(Module* modp, BeamInstr* pc, int local)
+{
+ GenericBp* g = (GenericBp *) pc[-4];
+ GenericBpData* src;
+ GenericBpData* dst;
+ Uint flags;
+
+ if (g == 0) {
+ return;
+ }
+
+ src = &g->data[erts_active_bp_ix()];
+ dst = &g->data[erts_staging_bp_ix()];
+
+ /*
+ * The contents of the staging area may be out of date.
+ * Decrement all reference pointers.
+ */
+
+ flags = dst->flags;
+ if (flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetUnref(dst->local_ms);
+ }
+ if (flags & ERTS_BPF_META_TRACE) {
+ bp_meta_unref(dst->meta_pid);
+ MatchSetUnref(dst->meta_ms);
+ }
+ if (flags & ERTS_BPF_COUNT) {
+ bp_count_unref(dst->count);
+ }
+ if (flags & ERTS_BPF_TIME_TRACE) {
+ bp_time_unref(dst->time);
+ }
+
+ /*
+ * If all flags are zero, deallocate all breakpoint data.
+ */
+
+ flags = dst->flags = src->flags;
+ if (flags == 0) {
+ if (modp) {
+ if (local) {
+ modp->curr.num_breakpoints--;
+ } else {
+ modp->curr.num_traced_exports--;
+ }
+ ASSERT(modp->curr.num_breakpoints >= 0);
+ ASSERT(modp->curr.num_traced_exports >= 0);
+ ASSERT(*pc != (BeamInstr) BeamOp(op_i_generic_breakpoint));
+ }
+ pc[-4] = 0;
+ Free(g);
+ return;
+ }
+
+ /*
+ * Copy the active data to the staging area (making it ready
+ * for the next time it will be used).
+ */
+
+ if (flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ dst->local_ms = src->local_ms;
+ MatchSetRef(dst->local_ms);
+ }
+ if (flags & ERTS_BPF_META_TRACE) {
+ dst->meta_pid = src->meta_pid;
+ erts_refc_inc(&dst->meta_pid->refc, 1);
+ dst->meta_ms = src->meta_ms;
+ MatchSetRef(dst->meta_ms);
+ }
+ if (flags & ERTS_BPF_COUNT) {
+ dst->count = src->count;
+ erts_refc_inc(&dst->count->refc, 1);
+ }
+ if (flags & ERTS_BPF_TIME_TRACE) {
+ dst->time = src->time;
+ erts_refc_inc(&dst->time->refc, 1);
+ ASSERT(dst->time->hash);
+ }
}
-int
-erts_set_debug_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, NULL,
- (BeamInstr) BeamOp(op_i_debug_breakpoint), 0, NIL);
+void
+erts_commit_staged_bp(void)
+{
+ ErtsBpIndex staging = erts_staging_bp_ix();
+ ErtsBpIndex active = erts_active_bp_ix();
+
+ erts_smp_atomic32_set_nob(&erts_active_bp_index, staging);
+ erts_smp_atomic32_set_nob(&erts_staging_bp_index, active);
}
-int
-erts_set_count_break(Eterm mfa[3], int specified, enum erts_break_op count_op) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, NULL,
- (BeamInstr) BeamOp(op_i_count_breakpoint), count_op, NIL);
+void
+erts_install_breakpoints(BpFunctions* f)
+{
+ Uint i;
+ Uint n = f->matched;
+ BeamInstr br = (BeamInstr) BeamOp(op_i_generic_breakpoint);
+
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ GenericBp* g = (GenericBp *) pc[-4];
+ if (*pc != br && g) {
+ Module* modp = f->matching[i].mod;
+
+ /*
+ * The breakpoint must be disabled in the active data
+ * (it will enabled later by switching bp indices),
+ * and enabled in the staging data.
+ */
+ ASSERT(g->data[erts_active_bp_ix()].flags == 0);
+ ASSERT(g->data[erts_staging_bp_ix()].flags != 0);
+
+ /*
+ * The following write is not protected by any lock. We
+ * assume that the hardware guarantees that a write of an
+ * aligned word-size (or half-word) writes is atomic
+ * (i.e. that other processes executing this code will not
+ * see a half pointer).
+ */
+ *pc = br;
+ modp->curr.num_breakpoints++;
+ }
+ }
}
-int
-erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op count_op) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, NULL,
- (BeamInstr) BeamOp(op_i_time_breakpoint), count_op, NIL);
+void
+erts_uninstall_breakpoints(BpFunctions* f)
+{
+ Uint i;
+ Uint n = f->matched;
+
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ uninstall_breakpoint(pc);
+ }
}
-int
-erts_clear_trace_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_trace_breakpoint));
+static void
+uninstall_breakpoint(BeamInstr* pc)
+{
+ if (*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ GenericBp* g = (GenericBp *) pc[-4];
+ if (g->data[erts_active_bp_ix()].flags == 0) {
+ /*
+ * The following write is not protected by any lock. We
+ * assume that the hardware guarantees that a write of an
+ * aligned word-size (or half-word) writes is atomic
+ * (i.e. that other processes executing this code will not
+ * see a half pointer).
+ */
+ *pc = g->orig_instr;
+ }
+ }
}
-int
-erts_clear_mtrace_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
+void
+erts_set_trace_break(BpFunctions* f, Binary *match_spec)
+{
+ set_break(f, match_spec, ERTS_BPF_LOCAL_TRACE, 0, am_true);
}
void
-erts_clear_mtrace_bif(BeamInstr *pc) {
- clear_function_break(NULL, pc, BREAK_IS_BIF, (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
+erts_set_mtrace_break(BpFunctions* f, Binary *match_spec, Eterm tracer_pid)
+{
+ set_break(f, match_spec, ERTS_BPF_META_TRACE, 0, tracer_pid);
}
-int
-erts_clear_debug_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_debug_breakpoint));
+void
+erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local)
+{
+ Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE;
+
+ set_function_break(pc, match_spec, flags, 0, NIL);
}
-int
-erts_clear_count_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_count_breakpoint));
+void
+erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid)
+{
+ set_function_break(pc, match_spec, ERTS_BPF_META_TRACE, 0, tracer_pid);
}
-int
-erts_clear_time_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_time_breakpoint));
+void
+erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op count_op)
+{
+ set_function_break(pc, NULL,
+ ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE,
+ count_op, NIL);
}
-int
-erts_clear_break(Eterm mfa[3], int specified) {
+void
+erts_clear_time_trace_bif(BeamInstr *pc) {
+ clear_function_break(pc, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE);
+}
+
+void
+erts_set_debug_break(BpFunctions* f) {
+ set_break(f, NULL, ERTS_BPF_DEBUG, 0, NIL);
+}
+
+void
+erts_set_count_break(BpFunctions* f, enum erts_break_op count_op)
+{
+ set_break(f, 0, ERTS_BPF_COUNT|ERTS_BPF_COUNT_ACTIVE,
+ count_op, NIL);
+}
+
+void
+erts_set_time_break(BpFunctions* f, enum erts_break_op count_op)
+{
+ set_break(f, 0, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE,
+ count_op, NIL);
+}
+
+void
+erts_clear_trace_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_LOCAL_TRACE);
+}
+
+void
+erts_clear_call_trace_bif(BeamInstr *pc, int local)
+{
+ GenericBp* g = (GenericBp *) pc[-4];
+
+ if (g) {
+ Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE;
+ if (g->data[erts_staging_bp_ix()].flags & flags) {
+ clear_function_break(pc, flags);
+ }
+ }
+}
+
+void
+erts_clear_mtrace_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_META_TRACE);
+}
+
+void
+erts_clear_mtrace_bif(BeamInstr *pc)
+{
+ clear_function_break(pc, ERTS_BPF_META_TRACE);
+}
+
+void
+erts_clear_debug_break(BpFunctions* f)
+{
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified, 0);
+ clear_break(f, ERTS_BPF_DEBUG);
+}
+
+void
+erts_clear_count_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_COUNT|ERTS_BPF_COUNT_ACTIVE);
+}
+
+void
+erts_clear_time_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE);
+}
+
+void
+erts_clear_all_breaks(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_ALL);
}
int
erts_clear_module_break(Module *modp) {
+ BeamInstr** code_base;
+ Uint n;
+ Uint i;
+
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
ASSERT(modp);
- return clear_module_break(modp, NULL, 0, 0);
+ code_base = (BeamInstr **) modp->curr.code;
+ if (code_base == NULL) {
+ return 0;
+ }
+ n = (Uint)(UWord) code_base[MI_NUM_FUNCTIONS];
+ for (i = 0; i < n; ++i) {
+ BeamInstr* pc;
+
+ pc = code_base[MI_FUNCTIONS+i] + 5;
+ if (erts_is_native_break(pc)) {
+ continue;
+ }
+ clear_function_break(pc, ERTS_BPF_ALL);
+ }
+
+ erts_commit_staged_bp();
+
+ for (i = 0; i < n; ++i) {
+ BeamInstr* pc;
+
+ pc = code_base[MI_FUNCTIONS+i] + 5;
+ if (erts_is_native_break(pc)) {
+ continue;
+ }
+ uninstall_breakpoint(pc);
+ consolidate_bp_data(modp, pc, 1);
+ ASSERT(pc[-4] == 0);
+ }
+ return n;
}
-int
-erts_clear_function_break(Module *modp, BeamInstr *pc) {
+void
+erts_clear_export_break(Module* modp, BeamInstr* pc)
+{
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- ASSERT(modp);
- return clear_function_break(modp, pc, BREAK_IS_ERL, 0);
+
+ clear_function_break(pc, ERTS_BPF_ALL);
+ erts_commit_staged_bp();
+ *pc = (BeamInstr) 0;
+ consolidate_bp_data(modp, pc, 0);
+ ASSERT(pc[-4] == 0);
}
+BeamInstr
+erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg)
+{
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint bp_flags;
+ ErtsBpIndex ix = erts_active_bp_ix();
+
+ g = (GenericBp *) I[-4];
+ bp = &g->data[ix];
+ bp_flags = bp->flags;
+ ASSERT((bp_flags & ~ERTS_BPF_ALL) == 0);
+ if (bp_flags & (ERTS_BPF_LOCAL_TRACE|
+ ERTS_BPF_GLOBAL_TRACE|
+ ERTS_BPF_TIME_TRACE_ACTIVE) &&
+ !IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
+ bp_flags &= ~(ERTS_BPF_LOCAL_TRACE|
+ ERTS_BPF_GLOBAL_TRACE|
+ ERTS_BPF_TIME_TRACE|
+ ERTS_BPF_TIME_TRACE_ACTIVE);
+ if (bp_flags == 0) { /* Quick exit */
+ return g->orig_instr;
+ }
+ }
+
+ if (bp_flags & ERTS_BPF_LOCAL_TRACE) {
+ ASSERT((bp_flags & ERTS_BPF_GLOBAL_TRACE) == 0);
+ (void) do_call_trace(c_p, I, reg, 1, bp->local_ms, am_true);
+ } else if (bp_flags & ERTS_BPF_GLOBAL_TRACE) {
+ (void) do_call_trace(c_p, I, reg, 0, bp->local_ms, am_true);
+ }
+
+ if (bp_flags & ERTS_BPF_META_TRACE) {
+ Eterm old_pid;
+ Eterm new_pid;
+
+ old_pid = (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid);
+ new_pid = do_call_trace(c_p, I, reg, 1, bp->meta_ms, old_pid);
+ if (new_pid != old_pid) {
+ erts_smp_atomic_set_nob(&bp->meta_pid->pid, new_pid);
+ }
+ }
+
+ if (bp_flags & ERTS_BPF_COUNT_ACTIVE) {
+ erts_smp_atomic_inc_nob(&bp->count->acount);
+ }
+
+ if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE) {
+ Eterm w;
+ erts_trace_time_call(c_p, I, bp->time);
+ w = (BeamInstr) *c_p->cp;
+ if (! (w == (BeamInstr) BeamOp(op_i_return_time_trace) ||
+ w == (BeamInstr) BeamOp(op_return_trace) ||
+ w == (BeamInstr) BeamOp(op_i_return_to_trace)) ) {
+ Eterm* E = c_p->stop;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ if (E - 2 < c_p->htop) {
+ (void) erts_garbage_collect(c_p, 2, reg, I[-1]);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
+ }
+ E = c_p->stop;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+
+ E -= 2;
+ E[0] = make_cp(I);
+ E[1] = make_cp(c_p->cp); /* original return address */
+ c_p->cp = beam_return_time_trace;
+ c_p->stop = E;
+ }
+ }
+
+ if (bp_flags & ERTS_BPF_DEBUG) {
+ return (BeamInstr) BeamOp(op_i_debug_breakpoint);
+ } else {
+ return g->orig_instr;
+ }
+}
/*
- * SMP NOTE: Process p may have become exiting on return!
+ * Entry point called by the trace wrap functions in erl_bif_wrap.c
+ *
+ * The trace wrap functions are themselves called through the export
+ * entries instead of the original BIF functions.
*/
-BeamInstr
-erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
- Uint32 *ret_flags, Eterm *tracer_pid) {
- Eterm tpid1, tpid2;
- BpData **bds = (BpData **) (pc)[-4];
- BpDataTrace *bdt = NULL;
+Eterm
+erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
+{
+ Eterm result;
+ Eterm (*func)(Process*, Eterm*, BeamInstr*);
+ Export* ep = bif_export[bif_index];
+ Uint32 flags = 0, flags_meta = 0;
+ Eterm meta_tracer_pid = NIL;
+ int applying = (I == &(ep->code[3])); /* Yup, the apply code for a bif
+ * is actually in the
+ * export entry */
+ BeamInstr *cp = p->cp;
+ GenericBp* g;
+ GenericBpData* bp = NULL;
+ Uint bp_flags = 0;
+
+ ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
+
+ g = (GenericBp *) ep->fake_op_func_info_for_hipe[1];
+ if (g) {
+ bp = &g->data[erts_active_bp_ix()];
+ bp_flags = bp->flags;
+ }
- ASSERT(bds);
- ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- bdt = (BpDataTrace *) bds[bp_sched2ix_proc(p)];
- ASSERT(bdt);
- bdt = (BpDataTrace *) bdt->next;
- ASSERT(bdt);
- ASSERT(ret_flags);
- ASSERT(tracer_pid);
-
- ErtsSmpBPLock(bdt);
- tpid1 = tpid2 = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
-
- *ret_flags = erts_call_trace(p, pc-3/*mfa*/, bdt->match_spec, args,
- 1, &tpid2);
- *tracer_pid = tpid2;
- if (tpid1 != tpid2) {
- ErtsSmpBPLock(bdt);
- bdt->tracer_pid = tpid2;
- ErtsSmpBPUnlock(bdt);
- }
- bds[bp_sched2ix_proc(p)] = (BpData *) bdt;
- return bdt->orig_instr;
+ /*
+ * Make continuation pointer OK, it is not during direct BIF calls,
+ * but it is correct during apply of bif.
+ */
+ if (!applying) {
+ p->cp = I;
+ }
+ if (bp_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE) &&
+ IS_TRACED_FL(p, F_TRACE_CALLS)) {
+ int local = !!(bp_flags & ERTS_BPF_LOCAL_TRACE);
+ flags = erts_call_trace(p, ep->code, bp->local_ms, args,
+ local, &ERTS_TRACER_PROC(p));
+ }
+ if (bp_flags & ERTS_BPF_META_TRACE) {
+ Eterm tpid1, tpid2;
+
+ tpid1 = tpid2 =
+ (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid);
+ flags_meta = erts_call_trace(p, ep->code, bp->meta_ms, args,
+ 0, &tpid2);
+ meta_tracer_pid = tpid2;
+ if (tpid1 != tpid2) {
+ erts_smp_atomic_set_nob(&bp->meta_pid->pid, tpid2);
+ }
+ }
+ if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE &&
+ IS_TRACED_FL(p, F_TRACE_CALLS)) {
+ BeamInstr *pc = (BeamInstr *)ep->code+3;
+ erts_trace_time_call(p, pc, bp->time);
+ }
+
+ /* Restore original continuation pointer (if changed). */
+ p->cp = cp;
+
+ func = bif_table[bif_index].f;
+
+ result = func(p, args, I);
+
+ if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) {
+ BeamInstr i_return_trace = beam_return_trace[0];
+ BeamInstr i_return_to_trace = beam_return_to_trace[0];
+ BeamInstr i_return_time_trace = beam_return_time_trace[0];
+ Eterm *cpp;
+ /* Maybe advance cp to skip trace stack frames */
+ for (cpp = p->stop; ; cp = cp_val(*cpp++)) {
+ if (*cp == i_return_trace) {
+ /* Skip stack frame variables */
+ while (is_not_CP(*cpp)) cpp++;
+ cpp += 2; /* Skip return_trace parameters */
+ } else if (*cp == i_return_time_trace) {
+ /* Skip stack frame variables */
+ while (is_not_CP(*cpp)) cpp++;
+ cpp += 1; /* Skip return_time_trace parameters */
+ } else if (*cp == i_return_to_trace) {
+ /* A return_to trace message is going to be generated
+ * by normal means, so we do not have to.
+ */
+ cp = NULL;
+ break;
+ } else break;
+ }
+ }
+
+ /* Try to get these in the order
+ * they usually appear in normal code... */
+ if (is_non_value(result)) {
+ Uint reason = p->freason;
+ if (reason != TRAP) {
+ Eterm class;
+ Eterm value = p->fvalue;
+ DeclareTmpHeapNoproc(nocatch,3);
+ UseTmpHeapNoproc(3);
+ /* Expand error value like in handle_error() */
+ if (reason & EXF_ARGLIST) {
+ Eterm *tp;
+ ASSERT(is_tuple(value));
+ tp = tuple_val(value);
+ value = tp[1];
+ }
+ if ((reason & EXF_THROWN) && (p->catches <= 0)) {
+ value = TUPLE2(nocatch, am_nocatch, value);
+ reason = EXC_ERROR;
+ }
+ /* Note: expand_error_value() could theoretically
+ * allocate on the heap, but not for any error
+ * returned by a BIF, and it would do no harm,
+ * just be annoying.
+ */
+ value = expand_error_value(p, reason, value);
+ class = exception_tag[GET_EXC_CLASS(reason)];
+
+ if (flags_meta & MATCH_SET_EXCEPTION_TRACE) {
+ erts_trace_exception(p, ep->code, class, value,
+ &meta_tracer_pid);
+ }
+ if (flags & MATCH_SET_EXCEPTION_TRACE) {
+ erts_trace_exception(p, ep->code, class, value,
+ &ERTS_TRACER_PROC(p));
+ }
+ if ((flags & MATCH_SET_RETURN_TO_TRACE) && p->catches > 0) {
+ /* can only happen if(local)*/
+ Eterm *ptr = p->stop;
+ ASSERT(is_CP(*ptr));
+ ASSERT(ptr <= STACK_START(p));
+ /* Search the nearest stack frame for a catch */
+ while (++ptr < STACK_START(p)) {
+ if (is_CP(*ptr)) break;
+ if (is_catch(*ptr)) {
+ if (applying) {
+ /* Apply of BIF, cp is in calling function */
+ if (cp) erts_trace_return_to(p, cp);
+ } else {
+ /* Direct bif call, I points into
+ * calling function */
+ erts_trace_return_to(p, I);
+ }
+ }
+ }
+ }
+ UnUseTmpHeapNoproc(3);
+ if ((flags_meta|flags) & MATCH_SET_EXCEPTION_TRACE) {
+ erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
+ ERTS_TRACE_FLAGS(p) |= F_EXCEPTION_TRACE;
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
+ }
+ }
+ } else {
+ if (flags_meta & MATCH_SET_RX_TRACE) {
+ erts_trace_return(p, ep->code, result, &meta_tracer_pid);
+ }
+ /* MATCH_SET_RETURN_TO_TRACE cannot occur if(meta) */
+ if (flags & MATCH_SET_RX_TRACE) {
+ erts_trace_return(p, ep->code, result, &ERTS_TRACER_PROC(p));
+ }
+ if (flags & MATCH_SET_RETURN_TO_TRACE) {
+ /* can only happen if(local)*/
+ if (applying) {
+ /* Apply of BIF, cp is in calling function */
+ if (cp) erts_trace_return_to(p, cp);
+ } else {
+ /* Direct bif call, I points into calling function */
+ erts_trace_return_to(p, I);
+ }
+ }
+ }
+ ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
+ return result;
}
+static Eterm
+do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg,
+ int local, Binary* ms, Eterm tracer_pid)
+{
+ Eterm* cpp;
+ int return_to_trace = 0;
+ BeamInstr w;
+ BeamInstr *cp_save;
+ Uint32 flags;
+ Uint need = 0;
+ Eterm* E = c_p->stop;
+
+ w = *c_p->cp;
+ if (w == (BeamInstr) BeamOp(op_return_trace)) {
+ cpp = &E[2];
+ } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) {
+ return_to_trace = 1;
+ cpp = &E[0];
+ } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) {
+ cpp = &E[0];
+ } else {
+ cpp = NULL;
+ }
+ if (cpp) {
+ for (;;) {
+ BeamInstr w = *cp_val(*cpp);
+ if (w == (BeamInstr) BeamOp(op_return_trace)) {
+ cpp += 3;
+ } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) {
+ return_to_trace = 1;
+ cpp += 1;
+ } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) {
+ cpp += 2;
+ } else {
+ break;
+ }
+ }
+ cp_save = c_p->cp;
+ c_p->cp = (BeamInstr *) cp_val(*cpp);
+ ASSERT(is_CP(*cpp));
+ }
+ ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
+ flags = erts_call_trace(c_p, I-3, ms, reg, local, &tracer_pid);
+ ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
+ if (cpp) {
+ c_p->cp = cp_save;
+ }
+
+ ASSERT(!ERTS_PROC_IS_EXITING(c_p));
+ if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
+ need += 1;
+ }
+ if (flags & MATCH_SET_RX_TRACE) {
+ need += 3;
+ }
+ if (need) {
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ if (E - need < c_p->htop) {
+ (void) erts_garbage_collect(c_p, need, reg, I[-1]);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
+ E = c_p->stop;
+ }
+ }
+ if (flags & MATCH_SET_RETURN_TO_TRACE && !return_to_trace) {
+ E -= 1;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ E[0] = make_cp(c_p->cp);
+ c_p->cp = beam_return_to_trace;
+ }
+ if (flags & MATCH_SET_RX_TRACE) {
+ E -= 3;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ ASSERT(is_CP((Eterm) (UWord) (I - 3)));
+ ASSERT(am_true == tracer_pid ||
+ is_internal_pid(tracer_pid) || is_internal_port(tracer_pid));
+ E[2] = make_cp(c_p->cp);
+ E[1] = tracer_pid;
+ E[0] = make_cp(I - 3); /* We ARE at the beginning of an
+ instruction,
+ the funcinfo is above i. */
+ c_p->cp = (flags & MATCH_SET_EXCEPTION_TRACE) ?
+ beam_exception_trace : beam_return_trace;
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
+ ERTS_TRACE_FLAGS(c_p) |= F_EXCEPTION_TRACE;
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
+ }
+ c_p->stop = E;
+ return tracer_pid;
+}
+void
+erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
+{
+ Uint ms,s,us;
+ process_breakpoint_time_t *pbt = NULL;
+ bp_data_time_item_t sitem, *item = NULL;
+ bp_time_hash_t *h = NULL;
+ BpDataTime *pbdt = NULL;
-/*
- * SMP NOTE: Process p may have become exiting on return!
- */
-Uint32
-erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args, int local,
- Eterm *tracer_pid) {
- BpData **bds = (BpData **) (pc)[-4];
- BpDataTrace *bdt = NULL;
+ ASSERT(c_p);
+ ASSERT(erts_smp_atomic32_read_acqb(&c_p->state) & ERTS_PSFLG_RUNNING);
+ /* get previous timestamp and breakpoint
+ * from the process psd */
- ASSERT(tracer_pid);
- if (bds) {
- Eterm tpid1, tpid2;
- Uint32 flags;
- bdt = (BpDataTrace *)bds[bp_sched2ix_proc(p)];
+ pbt = ERTS_PROC_GET_CALL_TIME(c_p);
+ get_sys_now(&ms, &s, &us);
- ErtsSmpBPLock(bdt);
- tpid1 = tpid2 = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
+ /* get pbt
+ * timestamp = t0
+ * lookup bdt from code
+ * set ts0 to pbt
+ * add call count here?
+ */
+ if (pbt == 0) {
+ /* First call of process to instrumented function */
+ pbt = Alloc(sizeof(process_breakpoint_time_t));
+ (void *) ERTS_PROC_SET_CALL_TIME(c_p, ERTS_PROC_LOCK_MAIN, pbt);
+ } else {
+ ASSERT(pbt->pc);
+ /* add time to previous code */
+ bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.pid = c_p->common.id;
+ sitem.count = 0;
- flags = erts_call_trace(p, pc-3/*mfa*/, bdt->match_spec, args,
- local, &tpid2);
- *tracer_pid = tpid2;
- if (tpid1 != tpid2) {
- ErtsSmpBPLock(bdt);
- bdt->tracer_pid = tpid2;
- ErtsSmpBPUnlock(bdt);
+ /* previous breakpoint */
+ pbdt = get_time_break(pbt->pc);
+
+ /* if null then the breakpoint was removed */
+ if (pbdt) {
+ h = &(pbdt->hash[bp_sched2ix_proc(c_p)]);
+
+ ASSERT(h);
+ ASSERT(h->item);
+
+ item = bp_hash_get(h, &sitem);
+ if (!item) {
+ item = bp_hash_put(h, &sitem);
+ } else {
+ BP_TIME_ADD(item, &sitem);
+ }
}
- return flags;
}
- *tracer_pid = NIL;
- return 0;
+
+ /* Add count to this code */
+ sitem.pid = c_p->common.id;
+ sitem.count = 1;
+ sitem.s_time = 0;
+ sitem.us_time = 0;
+
+ /* this breakpoint */
+ ASSERT(bdt);
+ h = &(bdt->hash[bp_sched2ix_proc(c_p)]);
+
+ ASSERT(h);
+ ASSERT(h->item);
+
+ item = bp_hash_get(h, &sitem);
+ if (!item) {
+ item = bp_hash_put(h, &sitem);
+ } else {
+ BP_TIME_ADD(item, &sitem);
+ }
+
+ pbt->pc = I;
+ pbt->ms = ms;
+ pbt->s = s;
+ pbt->us = us;
}
+void
+erts_trace_time_return(Process *p, BeamInstr *pc)
+{
+ Uint ms,s,us;
+ process_breakpoint_time_t *pbt = NULL;
+ bp_data_time_item_t sitem, *item = NULL;
+ bp_time_hash_t *h = NULL;
+ BpDataTime *pbdt = NULL;
+
+ ASSERT(p);
+ ASSERT(erts_smp_atomic32_read_acqb(&p->state) & ERTS_PSFLG_RUNNING);
+ /* get previous timestamp and breakpoint
+ * from the process psd */
+
+ pbt = ERTS_PROC_GET_CALL_TIME(p);
+ get_sys_now(&ms,&s,&us);
+
+ /* get pbt
+ * lookup bdt from code
+ * timestamp = t1
+ * get ts0 from pbt
+ * get item from bdt->hash[bp_hash(p->id)]
+ * ack diff (t1, t0) to item
+ */
+
+ if (pbt) {
+ /* might have been removed due to
+ * trace_pattern(false)
+ */
+ ASSERT(pbt->pc);
+
+ bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.pid = p->common.id;
+ sitem.count = 0;
+
+ /* previous breakpoint */
+ pbdt = get_time_break(pbt->pc);
+
+ /* beware, the trace_pattern might have been removed */
+ if (pbdt) {
+ h = &(pbdt->hash[bp_sched2ix_proc(p)]);
+
+ ASSERT(h);
+ ASSERT(h->item);
+
+ item = bp_hash_get(h, &sitem);
+ if (!item) {
+ item = bp_hash_put(h, &sitem);
+ } else {
+ BP_TIME_ADD(item, &sitem);
+ }
+ }
+
+ pbt->pc = pc;
+ pbt->ms = ms;
+ pbt->s = s;
+ pbt->us = us;
+ }
+}
int
-erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret) {
- BpDataTrace *bdt =
- (BpDataTrace *) is_break(pc, (BeamInstr) BeamOp(op_i_trace_breakpoint));
-
- if (bdt) {
+erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local)
+{
+ Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE;
+ GenericBpData* bp = check_break(pc, flags);
+
+ if (bp) {
if (match_spec_ret) {
- *match_spec_ret = bdt->match_spec;
+ *match_spec_ret = bp->local_ms;
}
- if (tracer_pid_ret) {
- ErtsSmpBPLock(bdt);
- *tracer_pid_ret = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
- }
- return !0;
+ return 1;
}
return 0;
}
int
-erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret) {
- BpDataTrace *bdt =
- (BpDataTrace *) is_break(pc, (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
+erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret,
+ Eterm *tracer_pid_ret)
+{
+ GenericBpData* bp = check_break(pc, ERTS_BPF_META_TRACE);
- if (bdt) {
+ if (bp) {
if (match_spec_ret) {
- *match_spec_ret = bdt->match_spec;
+ *match_spec_ret = bp->meta_ms;
}
if (tracer_pid_ret) {
- ErtsSmpBPLock(bdt);
- *tracer_pid_ret = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
+ *tracer_pid_ret =
+ (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid);
}
- return !0;
+ return 1;
}
return 0;
}
@@ -402,15 +1129,15 @@ erts_is_native_break(BeamInstr *pc) {
}
int
-erts_is_count_break(BeamInstr *pc, Sint *count_ret) {
- BpDataCount *bdc =
- (BpDataCount *) is_break(pc, (BeamInstr) BeamOp(op_i_count_breakpoint));
+erts_is_count_break(BeamInstr *pc, Uint *count_ret)
+{
+ GenericBpData* bp = check_break(pc, ERTS_BPF_COUNT);
- if (bdc) {
+ if (bp) {
if (count_ret) {
- *count_ret = (Sint) erts_smp_atomic_read_nob(&bdc->acount);
+ *count_ret = (Uint) erts_smp_atomic_read_nob(&bp->count->acount);
}
- return !0;
+ return 1;
}
return 0;
}
@@ -421,7 +1148,7 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) {
Uint size;
Eterm *hp, t;
bp_data_time_item_t *item = NULL;
- BpDataTime *bdt = (BpDataTime *) is_break(pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
+ BpDataTime *bdt = get_time_break(pc);
if (bdt) {
if (retval) {
@@ -464,7 +1191,7 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) {
}
bp_hash_delete(&hash);
}
- return !0;
+ return 1;
}
return 0;
@@ -478,15 +1205,16 @@ erts_find_local_func(Eterm mfa[3]) {
BeamInstr* code_ptr;
Uint i,n;
- if ((modp = erts_get_module(mfa[0])) == NULL)
+ if ((modp = erts_get_module(mfa[0], erts_active_code_ix())) == NULL)
return NULL;
- if ((code_base = (BeamInstr **) modp->code) == NULL)
+ if ((code_base = (BeamInstr **) modp->curr.code) == NULL)
return NULL;
n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
for (i = 0; i < n; ++i) {
code_ptr = code_base[MI_FUNCTIONS+i];
ASSERT(((BeamInstr) BeamOp(op_i_func_info_IaaI)) == code_ptr[0]);
- ASSERT(mfa[0] == ((Eterm) code_ptr[2]));
+ ASSERT(mfa[0] == ((Eterm) code_ptr[2]) ||
+ is_nil((Eterm) code_ptr[2]));
if (mfa[1] == ((Eterm) code_ptr[3]) &&
((BeamInstr) mfa[2]) == code_ptr[4]) {
return code_ptr + 5;
@@ -654,11 +1382,11 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
* the previous breakpoint.
*/
- pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
+ pbdt = get_time_break(pbt->pc);
if (pbdt) {
get_sys_now(&ms,&s,&us);
bp_time_diff(&sitem, pbt, ms, s, us);
- sitem.pid = p->id;
+ sitem.pid = p->common.id;
sitem.count = 0;
h = &(pbdt->hash[bp_sched2ix_proc(p)]);
@@ -692,669 +1420,259 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
} /* pbt */
}
-/* call_time breakpoint
- * Accumulated times are added to the previous bp,
- * not the current one. The current one is saved
- * for future reference.
- * The previous breakpoint is stored in the process it self, the psd.
- * We do not need to store in a stack frame.
- * There is no need for locking, each thread has its own
- * area in each bp to save data.
- * Since we need to diffrentiate between processes for each bp,
- * every bp has a hash (per thread) to process-bp statistics.
- * - egil
- */
-
-void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type) {
- Uint ms,s,us;
- process_breakpoint_time_t *pbt = NULL;
- bp_data_time_item_t sitem, *item = NULL;
- bp_time_hash_t *h = NULL;
- BpDataTime *pbdt = NULL;
-
- ASSERT(p);
- ASSERT(p->status == P_RUNNING);
-
- /* get previous timestamp and breakpoint
- * from the process psd */
-
- pbt = ERTS_PROC_GET_CALL_TIME(p);
- get_sys_now(&ms,&s,&us);
-
- switch(type) {
- /* get pbt
- * timestamp = t0
- * lookup bdt from code
- * set ts0 to pbt
- * add call count here?
- */
- case ERTS_BP_CALL_TIME_CALL:
- case ERTS_BP_CALL_TIME_TAIL_CALL:
-
- if (pbt) {
- ASSERT(pbt->pc);
- /* add time to previous code */
- bp_time_diff(&sitem, pbt, ms, s, us);
- sitem.pid = p->id;
- sitem.count = 0;
-
- /* previous breakpoint */
- pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
-
- /* if null then the breakpoint was removed */
- if (pbdt) {
- h = &(pbdt->hash[bp_sched2ix_proc(p)]);
-
- ASSERT(h);
- ASSERT(h->item);
-
- item = bp_hash_get(h, &sitem);
- if (!item) {
- item = bp_hash_put(h, &sitem);
- } else {
- BP_TIME_ADD(item, &sitem);
- }
- }
-
- } else {
- /* first call of process to instrumented function */
- pbt = Alloc(sizeof(process_breakpoint_time_t));
- (void *) ERTS_PROC_SET_CALL_TIME(p, ERTS_PROC_LOCK_MAIN, pbt);
- }
- /* add count to this code */
- sitem.pid = p->id;
- sitem.count = 1;
- sitem.s_time = 0;
- sitem.us_time = 0;
-
- /* this breakpoint */
- ASSERT(bdt);
- h = &(bdt->hash[bp_sched2ix_proc(p)]);
-
- ASSERT(h);
- ASSERT(h->item);
-
- item = bp_hash_get(h, &sitem);
- if (!item) {
- item = bp_hash_put(h, &sitem);
- } else {
- BP_TIME_ADD(item, &sitem);
- }
-
- pbt->pc = pc;
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
- break;
-
- case ERTS_BP_CALL_TIME_RETURN:
- /* get pbt
- * lookup bdt from code
- * timestamp = t1
- * get ts0 from pbt
- * get item from bdt->hash[bp_hash(p->id)]
- * ack diff (t1, t0) to item
- */
-
- if(pbt) {
- /* might have been removed due to
- * trace_pattern(false)
- */
- ASSERT(pbt->pc);
-
- bp_time_diff(&sitem, pbt, ms, s, us);
- sitem.pid = p->id;
- sitem.count = 0;
-
- /* previous breakpoint */
- pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
-
- /* beware, the trace_pattern might have been removed */
- if (pbdt) {
- h = &(pbdt->hash[bp_sched2ix_proc(p)]);
-
- ASSERT(h);
- ASSERT(h->item);
-
- item = bp_hash_get(h, &sitem);
- if (!item) {
- item = bp_hash_put(h, &sitem);
- } else {
- BP_TIME_ADD(item, &sitem);
- }
- }
-
- pbt->pc = pc;
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
- }
- break;
- default :
- ASSERT(0);
- /* will never happen */
- break;
- }
-}
-
-
/* *************************************************************************
** Local helpers
*/
-static int set_break(Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid)
+static void
+set_break(BpFunctions* f, Binary *match_spec, Uint break_flags,
+ enum erts_break_op count_op, Eterm tracer_pid)
{
- Module *modp;
- int num_processed = 0;
- if (!specified) {
- /* Find and process all modules in the system... */
- int current;
- int last = module_code_size();
- for (current = 0; current < last; current++) {
- modp = module_code(current);
- ASSERT(modp != NULL);
- num_processed +=
- set_module_break(modp, mfa, specified,
- match_spec, break_op, count_op,
- tracer_pid);
- }
- } else {
- /* Process a single module */
- if ((modp = erts_get_module(mfa[0])) != NULL) {
- num_processed +=
- set_module_break(modp, mfa, specified,
- match_spec, break_op, count_op,
- tracer_pid);
- }
- }
- return num_processed;
-}
-
-static int set_module_break(Module *modp, Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid) {
- BeamInstr** code_base;
- BeamInstr* code_ptr;
- int num_processed = 0;
- Uint i,n;
+ Uint i;
+ Uint n;
- ASSERT(break_op);
- ASSERT(modp);
- code_base = (BeamInstr **) modp->code;
- if (code_base == NULL) {
- return 0;
- }
- n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
- for (i = 0; i < n; ++i) {
- code_ptr = code_base[MI_FUNCTIONS+i];
- ASSERT(code_ptr[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- if ((specified < 2 || mfa[1] == ((Eterm) code_ptr[3])) &&
- (specified < 3 || ((int) mfa[2]) == ((int) code_ptr[4]))) {
- BeamInstr *pc = code_ptr+5;
-
- num_processed +=
- set_function_break(modp, pc, BREAK_IS_ERL, match_spec,
- break_op, count_op, tracer_pid);
- }
+ n = f->matched;
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ set_function_break(pc, match_spec, break_flags,
+ count_op, tracer_pid);
}
- return num_processed;
}
-static int set_function_break(Module *modp, BeamInstr *pc, int bif,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid) {
-
- BeamInstr **code_base = NULL;
- BpData *bd, **r, ***rs;
- size_t size;
- Uint ix = 0;
-
- if (bif == BREAK_IS_ERL) {
- code_base = (BeamInstr **)modp->code;
- ASSERT(code_base);
- ASSERT(code_base <= (BeamInstr **)pc);
- ASSERT((BeamInstr **)pc < code_base + (modp->code_length/sizeof(BeamInstr *)));
- } else {
- ASSERT(*pc == (BeamInstr) em_apply_bif);
- ASSERT(modp == NULL);
+static void
+set_function_break(BeamInstr *pc, Binary *match_spec, Uint break_flags,
+ enum erts_break_op count_op, Eterm tracer_pid)
+{
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint common;
+ ErtsBpIndex ix = erts_staging_bp_ix();
+
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission());
+ g = (GenericBp *) pc[-4];
+ if (g == 0) {
+ int i;
+ if (count_op == erts_break_reset || count_op == erts_break_stop) {
+ /* Do not insert a new breakpoint */
+ return;
+ }
+ g = Alloc(sizeof(GenericBp));
+ g->orig_instr = *pc;
+ for (i = 0; i < ERTS_NUM_BP_IX; i++) {
+ g->data[i].flags = 0;
+ }
+ pc[-4] = (BeamInstr) g;
}
+ bp = &g->data[ix];
/*
- * Currently no trace support for native code.
+ * If we are changing an existing breakpoint, clean up old data.
*/
- if (erts_is_native_break(pc)) {
- return 0;
- }
- /* Do not allow two breakpoints of the same kind */
- if ( (bd = is_break(pc, break_op))) {
- if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint)
- || break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
-
- BpDataTrace *bdt = (BpDataTrace *) bd;
- Binary *old_match_spec;
-
- /* Update match spec and tracer */
- MatchSetRef(match_spec);
- ErtsSmpBPLock(bdt);
- old_match_spec = bdt->match_spec;
- bdt->match_spec = match_spec;
- bdt->tracer_pid = tracer_pid;
- ErtsSmpBPUnlock(bdt);
- MatchSetUnref(old_match_spec);
- } else {
- BpDataCount *bdc = (BpDataCount *) bd;
- erts_aint_t count = 0;
- erts_aint_t res = 0;
-
- ASSERT(! match_spec);
- ASSERT(is_nil(tracer_pid));
-
- if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) {
- if (count_op == erts_break_stop) {
- count = erts_smp_atomic_read_nob(&bdc->acount);
- if (count >= 0) {
- while(1) {
- res = erts_smp_atomic_cmpxchg_nob(&bdc->acount, -count - 1, count);
- if ((res == count) || count < 0) break;
- count = res;
- }
- }
- } else {
- /* Reset call counter */
- erts_smp_atomic_set_nob(&bdc->acount, 0);
- }
-
- } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- BpDataTime *bdt = (BpDataTime *) bd;
- Uint i = 0;
-
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
-
- if (count_op == erts_break_stop) {
- bdt->pause = 1;
- } else {
- bdt->pause = 0;
- for (i = 0; i < bdt->n; i++) {
- bp_hash_delete(&(bdt->hash[i]));
- bp_hash_init(&(bdt->hash[i]), 32);
- }
- }
- } else {
- ASSERT (! count_op);
- }
- }
- return 1;
- }
- if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
- size = sizeof(BpDataTrace);
- } else {
- ASSERT(! match_spec);
- ASSERT(is_nil(tracer_pid));
- if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) {
- if (count_op == erts_break_reset || count_op == erts_break_stop) {
- /* Do not insert a new breakpoint */
- return 1;
- }
- size = sizeof(BpDataCount);
- } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- if (count_op == erts_break_reset || count_op == erts_break_stop) {
- /* Do not insert a new breakpoint */
- return 1;
- }
- size = sizeof(BpDataTime);
+ common = break_flags & bp->flags;
+ if (common & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetUnref(bp->local_ms);
+ } else if (common & ERTS_BPF_META_TRACE) {
+ MatchSetUnref(bp->meta_ms);
+ bp_meta_unref(bp->meta_pid);
+ } else if (common & ERTS_BPF_COUNT) {
+ if (count_op == erts_break_stop) {
+ bp->flags &= ~ERTS_BPF_COUNT_ACTIVE;
} else {
- ASSERT(! count_op);
- ASSERT(break_op == (BeamInstr) BeamOp(op_i_debug_breakpoint));
- size = sizeof(BpDataDebug);
+ bp->flags |= ERTS_BPF_COUNT_ACTIVE;
+ erts_smp_atomic_set_nob(&bp->count->acount, 0);
}
- }
- rs = (BpData ***) (pc-4);
- if (! *rs) {
- size_t ssize = sizeof(BeamInstr) * erts_no_schedulers;
- *rs = (BpData **) Alloc(ssize);
- sys_memzero(*rs, ssize);
- }
-
- r = &((*rs)[0]);
-
- if (! *r) {
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_trace_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_debug_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_count_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_time_breakpoint));
- /* First breakpoint; create singleton ring */
- bd = Alloc(size);
- BpInit(bd, *pc);
- *r = bd;
- if (bif == BREAK_IS_ERL) {
- *pc = break_op;
- }
- } else {
- ASSERT(*pc == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_mtrace_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_debug_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_time_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_count_breakpoint) ||
- *pc == (BeamInstr) em_apply_bif);
- if (*pc == (BeamInstr) BeamOp(op_i_debug_breakpoint)) {
- /* Debug bp must be last, so if it is also first;
- * it must be singleton. */
- ASSERT(BpSingleton(*r));
- /* Insert new bp first in the ring, i.e second to last. */
- bd = Alloc(size);
- BpInitAndSpliceNext(bd, *pc, *r);
- if (bif == BREAK_IS_ERL) {
- *pc = break_op;
- }
- } else if ((*r)->prev->orig_instr
- == (BeamInstr) BeamOp(op_i_debug_breakpoint)) {
- /* Debug bp last in the ring; insert new second to last. */
- bd = Alloc(size);
- BpInitAndSplicePrev(bd, (*r)->prev->orig_instr, *r);
- (*r)->prev->orig_instr = break_op;
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ return;
+ } else if (common & ERTS_BPF_TIME_TRACE) {
+ BpDataTime* bdt = bp->time;
+ Uint i = 0;
+
+ if (count_op == erts_break_stop) {
+ bp->flags &= ~ERTS_BPF_TIME_TRACE_ACTIVE;
} else {
- /* Just insert last in the ring */
- bd = Alloc(size);
- BpInitAndSpliceNext(bd, (*r)->orig_instr, *r);
- (*r)->orig_instr = break_op;
- *r = bd;
+ bp->flags |= ERTS_BPF_TIME_TRACE_ACTIVE;
+ for (i = 0; i < bdt->n; i++) {
+ bp_hash_delete(&(bdt->hash[i]));
+ bp_hash_init(&(bdt->hash[i]), 32);
+ }
}
- }
- for (ix = 1; ix < erts_no_schedulers; ++ix) {
- (*rs)[ix] = (*rs)[0];
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ return;
}
- bd->this_instr = break_op;
- /* Init the bp type specific data */
- if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
-
- BpDataTrace *bdt = (BpDataTrace *) bd;
-
- MatchSetRef(match_spec);
- bdt->match_spec = match_spec;
- bdt->tracer_pid = tracer_pid;
- } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- BpDataTime *bdt = (BpDataTime *) bd;
- Uint i = 0;
-
- bdt->pause = 0;
- bdt->n = erts_no_schedulers;
- bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n));
+ /*
+ * Initialize the new breakpoint data.
+ */
+ if (break_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetRef(match_spec);
+ bp->local_ms = match_spec;
+ } else if (break_flags & ERTS_BPF_META_TRACE) {
+ BpMetaPid* bmp;
+ MatchSetRef(match_spec);
+ bp->meta_ms = match_spec;
+ bmp = Alloc(sizeof(BpMetaPid));
+ erts_refc_init(&bmp->refc, 1);
+ erts_smp_atomic_init_nob(&bmp->pid, tracer_pid);
+ bp->meta_pid = bmp;
+ } else if (break_flags & ERTS_BPF_COUNT) {
+ BpCount* bcp;
+
+ ASSERT((bp->flags & ERTS_BPF_COUNT) == 0);
+ bcp = Alloc(sizeof(BpCount));
+ erts_refc_init(&bcp->refc, 1);
+ erts_smp_atomic_init_nob(&bcp->acount, 0);
+ bp->count = bcp;
+ } else if (break_flags & ERTS_BPF_TIME_TRACE) {
+ BpDataTime* bdt;
+ int i;
+
+ ASSERT((bp->flags & ERTS_BPF_TIME_TRACE) == 0);
+ bdt = Alloc(sizeof(BpDataTime));
+ erts_refc_init(&bdt->refc, 1);
+ bdt->n = erts_no_schedulers;
+ bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n));
for (i = 0; i < bdt->n; i++) {
bp_hash_init(&(bdt->hash[i]), 32);
}
- } else if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) {
- BpDataCount *bdc = (BpDataCount *) bd;
- erts_smp_atomic_init_nob(&bdc->acount, 0);
+ bp->time = bdt;
}
- if (bif == BREAK_IS_ERL) {
- ++(*(BeamInstr*)&code_base[MI_NUM_BREAKPOINTS]);
+ bp->flags |= break_flags;
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+}
+
+static void
+clear_break(BpFunctions* f, Uint break_flags)
+{
+ Uint i;
+ Uint n;
+
+ n = f->matched;
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ clear_function_break(pc, break_flags);
}
- return 1;
}
-static int clear_break(Eterm mfa[3], int specified, BeamInstr break_op)
+static int
+clear_function_break(BeamInstr *pc, Uint break_flags)
{
- int num_processed = 0;
- Module *modp;
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint common;
+ ErtsBpIndex ix = erts_staging_bp_ix();
- if (!specified) {
- /* Iterate over all modules */
- int current;
- int last = module_code_size();
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission());
- for (current = 0; current < last; current++) {
- modp = module_code(current);
- ASSERT(modp != NULL);
- num_processed += clear_module_break(modp, mfa, specified, break_op);
- }
- } else {
- /* Process a single module */
- if ((modp = erts_get_module(mfa[0])) != NULL) {
- num_processed +=
- clear_module_break(modp, mfa, specified, break_op);
- }
+ if ((g = (GenericBp *) pc[-4]) == 0) {
+ return 1;
}
- return num_processed;
-}
-static int clear_module_break(Module *m, Eterm mfa[3], int specified,
- BeamInstr break_op) {
- BeamInstr** code_base;
- BeamInstr* code_ptr;
- int num_processed = 0;
- Uint i;
- BeamInstr n;
-
- ASSERT(m);
- code_base = (BeamInstr **) m->code;
- if (code_base == NULL) {
- return 0;
+ bp = &g->data[ix];
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ common = bp->flags & break_flags;
+ bp->flags &= ~break_flags;
+ if (common & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetUnref(bp->local_ms);
}
- n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
- for (i = 0; i < n; ++i) {
- code_ptr = code_base[MI_FUNCTIONS+i];
- if ((specified < 2 || mfa[1] == ((Eterm) code_ptr[3])) &&
- (specified < 3 || ((int) mfa[2]) == ((int) code_ptr[4]))) {
- BeamInstr *pc = code_ptr + 5;
-
- num_processed +=
- clear_function_break(m, pc, BREAK_IS_ERL, break_op);
- }
+ if (common & ERTS_BPF_META_TRACE) {
+ MatchSetUnref(bp->meta_ms);
+ }
+ if (common & ERTS_BPF_COUNT) {
+ ASSERT((bp->flags & ERTS_BPF_COUNT_ACTIVE) == 0);
+ bp_count_unref(bp->count);
+ }
+ if (common & ERTS_BPF_TIME_TRACE) {
+ ASSERT((bp->flags & ERTS_BPF_TIME_TRACE_ACTIVE) == 0);
+ bp_time_unref(bp->time);
}
- return num_processed;
-}
-static int clear_function_break(Module *m, BeamInstr *pc, int bif, BeamInstr break_op) {
- BpData *bd;
- Uint ix = 0;
- BeamInstr **code_base = NULL;
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ return 1;
+}
- if (bif == BREAK_IS_ERL) {
- code_base = (BeamInstr **)m->code;
- ASSERT(code_base);
- ASSERT(code_base <= (BeamInstr **)pc);
- ASSERT((BeamInstr **)pc < code_base + (m->code_length/sizeof(BeamInstr *)));
- } else {
- ASSERT(*pc == (BeamInstr) em_apply_bif);
- ASSERT(m == NULL);
+static void
+bp_meta_unref(BpMetaPid* bmp)
+{
+ if (erts_refc_dectest(&bmp->refc, 0) <= 0) {
+ Free(bmp);
}
+}
- /*
- * Currently no trace support for native code.
- */
- if (erts_is_native_break(pc)) {
- return 0;
+static void
+bp_count_unref(BpCount* bcp)
+{
+ if (erts_refc_dectest(&bcp->refc, 0) <= 0) {
+ Free(bcp);
}
+}
- while ( (bd = is_break(pc, break_op))) {
- /* Remove all breakpoints of this type.
- * There should be only one of each type,
- * but break_op may be 0 which matches any type.
+static void
+bp_time_unref(BpDataTime* bdt)
+{
+ if (erts_refc_dectest(&bdt->refc, 0) <= 0) {
+ Uint i = 0;
+ Uint j = 0;
+ Process *h_p = NULL;
+ bp_data_time_item_t* item = NULL;
+ process_breakpoint_time_t* pbt = NULL;
+
+ /* remove all psd associated with the hash
+ * and then delete the hash.
+ * ... sigh ...
*/
- BeamInstr op;
- BpData ***rs = (BpData ***) (pc - 4);
- BpData **r = NULL;
-
-#ifdef DEBUG
- for (ix = 1; ix < erts_no_schedulers; ++ix) {
- ASSERT((*rs)[ix] == (*rs)[0]);
- }
-#endif
-
- r = &((*rs)[0]);
-
- ASSERT(*r);
- /* Find opcode for this breakpoint */
- if (break_op) {
- op = break_op;
- } else {
- if (bd == (*r)->next) {
- /* First breakpoint in ring */
- op = *pc;
- } else {
- op = bd->prev->orig_instr;
- }
- }
- if (BpSingleton(bd)) {
- ASSERT(*r == bd);
- /* Only one breakpoint to remove */
- if (bif == BREAK_IS_ERL) {
- *pc = bd->orig_instr;
- }
- Free(*rs);
- *rs = NULL;
- } else {
- BpData *bd_prev = bd->prev;
-
- BpSpliceNext(bd, bd_prev);
- ASSERT(BpSingleton(bd));
- if (bd == *r) {
- /* We removed the last breakpoint in the ring */
- *r = bd_prev;
- bd_prev->orig_instr = bd->orig_instr;
- } else if (bd_prev == *r) {
- /* We removed the first breakpoint in the ring */
- if (bif == BREAK_IS_ERL) {
- *pc = bd->orig_instr;
- }
- } else {
- bd_prev->orig_instr = bd->orig_instr;
- }
- }
- if (op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
-
- BpDataTrace *bdt = (BpDataTrace *) bd;
- MatchSetUnref(bdt->match_spec);
- }
- if (op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- BpDataTime *bdt = (BpDataTime *) bd;
- Uint i = 0;
- Uint j = 0;
- Process *h_p = NULL;
- bp_data_time_item_t *item = NULL;
- process_breakpoint_time_t *pbt = NULL;
-
- /* remove all psd associated with the hash
- * and then delete the hash.
- * ... sigh ...
- */
- for( i = 0; i < bdt->n; ++i) {
- if (bdt->hash[i].used) {
- for (j = 0; j < bdt->hash[i].n; ++j) {
- item = &(bdt->hash[i].item[j]);
- if (item->pid != NIL) {
- h_p = process_tab[internal_pid_index(item->pid)];
- if (h_p) {
- pbt = ERTS_PROC_SET_CALL_TIME(h_p, ERTS_PROC_LOCK_MAIN, NULL);
- if (pbt) {
- Free(pbt);
- }
+ for (i = 0; i < bdt->n; ++i) {
+ if (bdt->hash[i].used) {
+ for (j = 0; j < bdt->hash[i].n; ++j) {
+ item = &(bdt->hash[i].item[j]);
+ if (item->pid != NIL) {
+ h_p = erts_pid2proc(NULL, 0, item->pid,
+ ERTS_PROC_LOCK_MAIN);
+ if (h_p) {
+ pbt = ERTS_PROC_SET_CALL_TIME(h_p,
+ ERTS_PROC_LOCK_MAIN,
+ NULL);
+ if (pbt) {
+ Free(pbt);
}
+ erts_smp_proc_unlock(h_p, ERTS_PROC_LOCK_MAIN);
}
}
}
- bp_hash_delete(&(bdt->hash[i]));
}
- Free(bdt->hash);
- bdt->hash = NULL;
- bdt->n = 0;
+ bp_hash_delete(&(bdt->hash[i]));
}
- Free(bd);
- if (bif == BREAK_IS_ERL) {
- ASSERT(((BeamInstr) code_base[MI_NUM_BREAKPOINTS]) > 0);
- --(*(BeamInstr*)&code_base[MI_NUM_BREAKPOINTS]);
- }
- if (*rs) {
- for (ix = 1; ix < erts_no_schedulers; ++ix) {
- (*rs)[ix] = (*rs)[0];
- }
- }
- } /* while bd != NULL */
- return 1;
+ Free(bdt->hash);
+ Free(bdt);
+ }
}
-
-
-/*
-** Searches (linear forward) the breakpoint ring for a specified opcode
-** and returns a pointer to the breakpoint data structure or NULL if
-** not found. If the specified opcode is 0, the last breakpoint is
-** returned. The program counter must point to the first executable
-** (breakpoint) instruction of the function.
-*/
-
-BpData *erts_get_time_break(Process *p, BeamInstr *pc) {
- return get_break(p, pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
+static BpDataTime*
+get_time_break(BeamInstr *pc)
+{
+ GenericBpData* bp = check_break(pc, ERTS_BPF_TIME_TRACE);
+ return bp ? bp->time : 0;
}
-static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op) {
- ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- if (! erts_is_native_break(pc)) {
- BpData **rs = (BpData **) pc[-4];
- BpData *bd = NULL, *ebd = NULL;
-
- if (! rs) {
- return NULL;
- }
-
- bd = ebd = rs[bp_sched2ix_proc(p)];
- ASSERT(bd);
- if (bd->this_instr == break_op) {
- return bd;
- }
-
- bd = bd->next;
- while (bd != ebd) {
- ASSERT(bd);
- if (bd->this_instr == break_op) {
- ASSERT(bd);
- return bd;
- }
- bd = bd->next;
- }
- }
- return NULL;
-}
+static GenericBpData*
+check_break(BeamInstr *pc, Uint break_flags)
+{
+ GenericBp* g = (GenericBp *) pc[-4];
-static BpData *is_break(BeamInstr *pc, BeamInstr break_op) {
- BpData **rs;
- BpData *bd = NULL, *ebd = NULL;
ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
-
if (erts_is_native_break(pc)) {
- return NULL;
- }
- rs = (BpData **) pc[-4];
- if (! rs) {
- return NULL;
- }
-
- bd = ebd = rs[erts_bp_sched2ix()];
- ASSERT(bd);
- if ( (break_op == 0) || (bd->this_instr == break_op)) {
- return bd;
+ return 0;
}
-
- bd = bd->next;
- while (bd != ebd) {
- ASSERT(bd);
- if (bd->this_instr == break_op) {
- ASSERT(bd);
- return bd;
+ if (g) {
+ GenericBpData* bp = &g->data[erts_active_bp_ix()];
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ if (bp->flags & break_flags) {
+ return bp;
}
- bd = bd->next;
}
- return NULL;
+ return 0;
}
diff --git a/erts/emulator/beam/beam_bp.h b/erts/emulator/beam/beam_bp.h
index 167069552f..28aaaa462a 100644
--- a/erts/emulator/beam/beam_bp.h
+++ b/erts/emulator/beam/beam_bp.h
@@ -25,77 +25,6 @@
#include "erl_vm.h"
#include "global.h"
-
-
-/* A couple of gotchas:
- *
- * The breakpoint structure from BeamInstr,
- * In beam_emu where the instruction counter pointer, I (or pc),
- * points to the *current* instruction. At that time, if the instruction
- * is a breakpoint instruction the pc looks like the following,
- *
- * I[-5] | op_i_func_info_IaaI | scheduler specific entries
- * I[-4] | BpData** bpa | --> | BpData * bdas1 | ... | BpData * bdasN |
- * I[-3] | Tagged Module | | |
- * I[-2] | Tagged Function | V V
- * I[-1] | Arity | BpData -> BpData -> BpData -> BpData
- * I[0] | The bp instruction | ^ * the bp wheel * |
- * |------------------------------
- *
- * Common struct to all bp_data_*
- *
- * 1) The type of bp_data structure in the ring is deduced from the
- * orig_instr field of the structure _before_ in the ring, except for
- * the first structure in the ring that has its instruction in
- * pc[0] of the code to execute.
- * This is valid as long as you don't search for the function while it is
- * being executed by something else. Or is in the middle of its rotation for
- * any other reason.
- * A key, the bp beam instruction, is included for this reason.
- *
- * 2) pc[-4][sched_id - 1] points to the _last_ structure in the ring before the
- * breakpoints are being executed.
- *
- * So, as an example, when a breakpointed function starts to execute,
- * the first instruction that is a breakpoint instruction at pc[0] finds
- * its data at ((BpData **) pc[-4][sched_id - 1])->next and has to cast that pointer
- * to the correct bp_data type.
-*/
-
-typedef struct bp_data {
- struct bp_data *next; /* Doubly linked ring pointers */
- struct bp_data *prev; /* -"- */
- BeamInstr orig_instr; /* The original instruction to execute */
- BeamInstr this_instr; /* key */
-} BpData;
-/*
-** All the following bp_data_.. structs must begin the same way
-*/
-
-typedef struct bp_data_trace {
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
- Binary *match_spec;
- Eterm tracer_pid;
-} BpDataTrace;
-
-typedef struct bp_data_debug {
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
-} BpDataDebug;
-
-typedef struct bp_data_count { /* Call count */
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
- erts_smp_atomic_t acount;
-} BpDataCount;
-
typedef struct {
Eterm pid;
Sint count;
@@ -110,13 +39,9 @@ typedef struct {
} bp_time_hash_t;
typedef struct bp_data_time { /* Call time */
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
- Uint pause;
- Uint n;
- bp_time_hash_t *hash;
+ Uint n;
+ bp_time_hash_t *hash;
+ erts_refc_t refc;
} BpDataTime;
typedef struct {
@@ -126,64 +51,42 @@ typedef struct {
BeamInstr *pc;
} process_breakpoint_time_t; /* used within psd */
-extern erts_smp_spinlock_t erts_bp_lock;
+typedef struct {
+ erts_smp_atomic_t acount;
+ erts_refc_t refc;
+} BpCount;
+
+typedef struct {
+ erts_smp_atomic_t pid;
+ erts_refc_t refc;
+} BpMetaPid;
+
+typedef struct generic_bp_data {
+ Uint flags;
+ Binary* local_ms; /* Match spec for local call trace */
+ Binary* meta_ms; /* Match spec for meta trace */
+ BpMetaPid* meta_pid; /* Meta trace pid */
+ BpCount* count; /* For call count */
+ BpDataTime* time; /* For time trace */
+} GenericBpData;
+
+#define ERTS_NUM_BP_IX 2
+
+typedef struct generic_bp {
+ BeamInstr orig_instr;
+ GenericBpData data[ERTS_NUM_BP_IX];
+} GenericBp;
#define ERTS_BP_CALL_TIME_SCHEDULE_IN (0)
#define ERTS_BP_CALL_TIME_SCHEDULE_OUT (1)
#define ERTS_BP_CALL_TIME_SCHEDULE_EXITING (2)
-#define ERTS_BP_CALL_TIME_CALL (0)
-#define ERTS_BP_CALL_TIME_RETURN (1)
-#define ERTS_BP_CALL_TIME_TAIL_CALL (2)
-
-#ifdef ERTS_SMP
-#define ErtsSmpBPLock(BDC) erts_smp_spin_lock(&erts_bp_lock)
-#define ErtsSmpBPUnlock(BDC) erts_smp_spin_unlock(&erts_bp_lock)
-#else
-#define ErtsSmpBPLock(BDC)
-#define ErtsSmpBPUnlock(BDC)
-#endif
-
#ifdef ERTS_SMP
#define bp_sched2ix_proc(p) ((p)->scheduler_data->no - 1)
#else
#define bp_sched2ix_proc(p) (0)
#endif
-#define ErtsCountBreak(p, pc,instr_result) \
-do { \
- BpData **bds = (BpData **) (pc)[-4]; \
- BpDataCount *bdc = NULL; \
- Uint ix = bp_sched2ix_proc( (p) ); \
- erts_aint_t count = 0; \
- \
- ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bds); \
- bdc = (BpDataCount *) bds[ix]; \
- bdc = (BpDataCount *) bdc->next; \
- ASSERT(bdc); \
- bds[ix] = (BpData *) bdc; \
- count = erts_smp_atomic_read_nob(&bdc->acount); \
- if (count >= 0) erts_smp_atomic_inc_nob(&bdc->acount); \
- *(instr_result) = bdc->orig_instr; \
-} while (0)
-
-#define ErtsBreakSkip(p, pc,instr_result) \
-do { \
- BpData **bds = (BpData **) (pc)[-4]; \
- BpData *bd = NULL; \
- Uint ix = bp_sched2ix_proc( (p) ); \
- \
- ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bds); \
- bd = bds[ix]; \
- ASSERT(bd); \
- bd = bd->next; \
- ASSERT(bd); \
- bds[ix] = bd; \
- *(instr_result) = bd->orig_instr; \
-} while (0)
-
enum erts_break_op{
erts_break_nop = 0, /* Must be false */
erts_break_set = !0, /* Must be true */
@@ -191,7 +94,17 @@ enum erts_break_op{
erts_break_stop
};
+typedef Uint32 ErtsBpIndex;
+typedef struct {
+ BeamInstr* pc;
+ Module* mod;
+} BpFunction;
+
+typedef struct {
+ Uint matched; /* Number matched */
+ BpFunction* matching; /* Matching functions */
+} BpFunctions;
/*
** Function interface exported from beam_bp.c
@@ -199,49 +112,66 @@ enum erts_break_op{
void erts_bp_init(void);
-int erts_set_trace_break(Eterm mfa[3], int specified, Binary *match_spec,
- Eterm tracer_pid);
-int erts_clear_trace_break(Eterm mfa[3], int specified);
-int erts_set_mtrace_break(Eterm mfa[3], int specified, Binary *match_spec,
+void erts_prepare_bp_staging(void);
+void erts_commit_staged_bp(void);
+
+ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void);
+ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void);
+
+void erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified);
+void erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified);
+void erts_bp_free_matched_functions(BpFunctions* f);
+
+void erts_install_breakpoints(BpFunctions* f);
+void erts_uninstall_breakpoints(BpFunctions* f);
+void erts_consolidate_bp_data(BpFunctions* f, int local);
+void erts_consolidate_bif_bp_data(void);
+
+void erts_set_trace_break(BpFunctions *f, Binary *match_spec);
+void erts_clear_trace_break(BpFunctions *f);
+
+void erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local);
+void erts_clear_call_trace_bif(BeamInstr *pc, int local);
+
+void erts_set_mtrace_break(BpFunctions *f, Binary *match_spec,
Eterm tracer_pid);
-int erts_clear_mtrace_break(Eterm mfa[3], int specified);
+void erts_clear_mtrace_break(BpFunctions *f);
void erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec,
Eterm tracer_pid);
void erts_clear_mtrace_bif(BeamInstr *pc);
-int erts_set_debug_break(Eterm mfa[3], int specified);
-int erts_clear_debug_break(Eterm mfa[3], int specified);
-int erts_set_count_break(Eterm mfa[3], int specified, enum erts_break_op);
-int erts_clear_count_break(Eterm mfa[3], int specified);
+void erts_set_debug_break(BpFunctions *f);
+void erts_clear_debug_break(BpFunctions *f);
+void erts_set_count_break(BpFunctions *f, enum erts_break_op);
+void erts_clear_count_break(BpFunctions *f);
-int erts_clear_break(Eterm mfa[3], int specified);
+
+void erts_clear_all_breaks(BpFunctions* f);
int erts_clear_module_break(Module *modp);
-int erts_clear_function_break(Module *modp, BeamInstr *pc);
+void erts_clear_export_break(Module *modp, BeamInstr* pc);
+BeamInstr erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg);
BeamInstr erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
Uint32 *ret_flags, Eterm *tracer_pid);
-Uint32 erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args,
- int local, Eterm *tracer_pid);
-int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret,
- Eterm *tracer_pid_ret);
+int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local);
int erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret,
Eterm *tracer_pid_rte);
int erts_is_mtrace_bif(BeamInstr *pc, Binary **match_spec_ret,
Eterm *tracer_pid_ret);
int erts_is_native_break(BeamInstr *pc);
-int erts_is_count_break(BeamInstr *pc, Sint *count_ret);
+int erts_is_count_break(BeamInstr *pc, Uint *count_ret);
int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *call_time);
-void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type);
+void erts_trace_time_call(Process* c_p, BeamInstr* pc, BpDataTime* bdt);
+void erts_trace_time_return(Process* c_p, BeamInstr* pc);
void erts_schedule_time_break(Process *p, Uint out);
-int erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op);
-int erts_clear_time_break(Eterm mfa[3], int specified);
+void erts_set_time_break(BpFunctions *f, enum erts_break_op);
+void erts_clear_time_break(BpFunctions *f);
int erts_is_time_trace_bif(Process *p, BeamInstr *pc, Eterm *call_time);
void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op);
void erts_clear_time_trace_bif(BeamInstr *pc);
-BpData *erts_get_time_break(Process *p, BeamInstr *pc);
BeamInstr *erts_find_local_func(Eterm mfa[3]);
@@ -258,6 +188,19 @@ ERTS_GLB_INLINE Uint erts_bp_sched2ix(void)
return 0;
#endif
}
+
+extern erts_smp_atomic32_t erts_active_bp_index;
+extern erts_smp_atomic32_t erts_staging_bp_index;
+
+ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&erts_active_bp_index);
+}
+
+ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&erts_staging_bp_index);
+}
#endif
#endif /* _BEAM_BP_H */
diff --git a/erts/emulator/beam/beam_catches.c b/erts/emulator/beam/beam_catches.c
index 406ef1db5f..92f7ffe5a2 100644
--- a/erts/emulator/beam/beam_catches.c
+++ b/erts/emulator/beam/beam_catches.c
@@ -31,78 +31,144 @@ typedef struct {
unsigned cdr;
} beam_catch_t;
-static int free_list;
-static unsigned high_mark;
-static unsigned tabsize;
-static beam_catch_t *beam_catches;
+#ifdef DEBUG
+# define IF_DEBUG(x) x
+#else
+# define IF_DEBUG(x)
+#endif
+
+struct bc_pool {
+ int free_list;
+ unsigned high_mark;
+ unsigned tabsize;
+ beam_catch_t *beam_catches;
+ /*
+ * Note that the 'beam_catches' area is shared by pools. Used slots
+ * are readonly as long as the module is not purgable. The free-list is
+ * protected by the code_ix lock.
+ */
+
+ IF_DEBUG(int is_staging;)
+};
+
+static struct bc_pool bccix[ERTS_NUM_CODE_IX];
void beam_catches_init(void)
{
- tabsize = DEFAULT_TABSIZE;
- free_list = -1;
- high_mark = 0;
+ int i;
+
+ bccix[0].tabsize = DEFAULT_TABSIZE;
+ bccix[0].free_list = -1;
+ bccix[0].high_mark = 0;
+ bccix[0].beam_catches = erts_alloc(ERTS_ALC_T_CODE,
+ sizeof(beam_catch_t)*DEFAULT_TABSIZE);
+ IF_DEBUG(bccix[0].is_staging = 0);
+ for (i=1; i<ERTS_NUM_CODE_IX; i++) {
+ bccix[i] = bccix[i-1];
+ }
+ /* For initial load: */
+ IF_DEBUG(bccix[erts_staging_code_ix()].is_staging = 1);
+}
- beam_catches = erts_alloc(ERTS_ALC_T_CODE, sizeof(beam_catch_t)*DEFAULT_TABSIZE);
+
+static void gc_old_vec(beam_catch_t* vec)
+{
+ int i;
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ if (bccix[i].beam_catches == vec) {
+ return;
+ }
+ }
+ erts_free(ERTS_ALC_T_CODE, vec);
+}
+
+
+void beam_catches_start_staging(void)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+ ErtsCodeIndex src = erts_active_code_ix();
+ beam_catch_t* prev_vec = bccix[dst].beam_catches;
+
+ ASSERT(!bccix[src].is_staging && !bccix[dst].is_staging);
+
+ bccix[dst] = bccix[src];
+ gc_old_vec(prev_vec);
+ IF_DEBUG(bccix[dst].is_staging = 1);
+}
+
+void beam_catches_end_staging(int commit)
+{
+ IF_DEBUG(bccix[erts_staging_code_ix()].is_staging = 0);
}
unsigned beam_catches_cons(BeamInstr *cp, unsigned cdr)
{
int i;
+ struct bc_pool* p = &bccix[erts_staging_code_ix()];
+ ASSERT(p->is_staging);
/*
* Allocate from free_list while it is non-empty.
* If free_list is empty, allocate at high_mark.
- *
- * This avoids the need to initialise the free list in
- * beam_catches_init(), which would cost O(TABSIZ) time.
*/
- if( free_list >= 0 ) {
- i = free_list;
- free_list = beam_catches[i].cdr;
- } else if( high_mark < tabsize ) {
- i = high_mark;
- high_mark++;
- } else {
- /* No free slots and table is full: realloc table */
- tabsize = 2*tabsize;
- beam_catches = erts_realloc(ERTS_ALC_T_CODE, beam_catches, sizeof(beam_catch_t)*tabsize);
- i = high_mark;
- high_mark++;
+ if (p->free_list >= 0) {
+ i = p->free_list;
+ p->free_list = p->beam_catches[i].cdr;
+ }
+ else {
+ if (p->high_mark >= p->tabsize) {
+ /* No free slots and table is full: realloc table */
+ beam_catch_t* prev_vec = p->beam_catches;
+ unsigned newsize = p->tabsize*2;
+
+ p->beam_catches = erts_alloc(ERTS_ALC_T_CODE,
+ newsize*sizeof(beam_catch_t));
+ sys_memcpy(p->beam_catches, prev_vec,
+ p->tabsize*sizeof(beam_catch_t));
+ gc_old_vec(prev_vec);
+ p->tabsize = newsize;
+ }
+ i = p->high_mark++;
}
- beam_catches[i].cp = cp;
- beam_catches[i].cdr = cdr;
+ p->beam_catches[i].cp = cp;
+ p->beam_catches[i].cdr = cdr;
return i;
}
BeamInstr *beam_catches_car(unsigned i)
{
- if( i >= tabsize ) {
+ struct bc_pool* p = &bccix[erts_active_code_ix()];
+
+ if (i >= p->tabsize ) {
erl_exit(1, "beam_catches_delmod: index %#x is out of range\r\n", i);
}
- return beam_catches[i].cp;
+ return p->beam_catches[i].cp;
}
-void beam_catches_delmod(unsigned head, BeamInstr *code, unsigned code_bytes)
+void beam_catches_delmod(unsigned head, BeamInstr *code, unsigned code_bytes,
+ ErtsCodeIndex code_ix)
{
+ struct bc_pool* p = &bccix[code_ix];
unsigned i, cdr;
+ ASSERT((code_ix == erts_active_code_ix()) != bccix[erts_staging_code_ix()].is_staging);
for(i = head; i != (unsigned)-1;) {
- if( i >= tabsize ) {
+ if (i >= p->tabsize) {
erl_exit(1, "beam_catches_delmod: index %#x is out of range\r\n", i);
}
- if( (char*)beam_catches[i].cp - (char*)code >= code_bytes ) {
+ if( (char*)p->beam_catches[i].cp - (char*)code >= code_bytes ) {
erl_exit(1,
"beam_catches_delmod: item %#x has cp %#lx which is not "
"in module's range [%#lx,%#lx[\r\n",
- i, (long)beam_catches[i].cp,
+ i, (long)p->beam_catches[i].cp,
(long)code, (long)((char*)code + code_bytes));
}
- beam_catches[i].cp = 0;
- cdr = beam_catches[i].cdr;
- beam_catches[i].cdr = free_list;
- free_list = i;
+ p->beam_catches[i].cp = 0;
+ cdr = p->beam_catches[i].cdr;
+ p->beam_catches[i].cdr = p->free_list;
+ p->free_list = i;
i = cdr;
}
}
diff --git a/erts/emulator/beam/beam_catches.h b/erts/emulator/beam/beam_catches.h
index 6223427f0d..b2bd2351a5 100644
--- a/erts/emulator/beam/beam_catches.h
+++ b/erts/emulator/beam/beam_catches.h
@@ -20,12 +20,21 @@
#ifndef __BEAM_CATCHES_H
#define __BEAM_CATCHES_H
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include "sys.h"
+#include "code_ix.h"
+
#define BEAM_CATCHES_NIL (-1)
void beam_catches_init(void);
+void beam_catches_start_staging(void);
+void beam_catches_end_staging(int commit);
unsigned beam_catches_cons(BeamInstr* cp, unsigned cdr);
BeamInstr *beam_catches_car(unsigned i);
-void beam_catches_delmod(unsigned head, BeamInstr* code, unsigned code_bytes);
+void beam_catches_delmod(unsigned head, BeamInstr* code, unsigned code_bytes,
+ ErtsCodeIndex);
#define catch_pc(x) beam_catches_car(catch_val((x)))
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 8041c92162..a609ed8c71 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -84,6 +84,7 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
int i;
int specified = 0;
Eterm res;
+ BpFunctions f;
if (bool != am_true && bool != am_false)
goto error;
@@ -114,18 +115,30 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
mfa[2] = signed_val(mfa[2]);
}
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_erts_debug_breakpoint_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
+ erts_bp_match_functions(&f, mfa, specified);
if (bool == am_true) {
- res = make_small(erts_set_debug_break(mfa, specified));
+ erts_set_debug_break(&f);
+ erts_install_breakpoints(&f);
+ erts_commit_staged_bp();
} else {
- res = make_small(erts_clear_debug_break(mfa, specified));
+ erts_clear_debug_break(&f);
+ erts_commit_staged_bp();
+ erts_uninstall_breakpoints(&f);
}
+ erts_consolidate_bp_data(&f, 1);
+ res = make_small(f.matched);
+ erts_bp_free_matched_functions(&f);
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
-
+ erts_release_code_write_permission();
return res;
error:
@@ -207,6 +220,7 @@ erts_debug_disassemble_1(BIF_ALIST_1)
BIF_RET(am_false);
}
} else if (is_tuple(addr)) {
+ ErtsCodeIndex code_ix;
Module* modp;
Eterm mod;
Eterm name;
@@ -225,14 +239,14 @@ erts_debug_disassemble_1(BIF_ALIST_1)
goto error;
}
arity = signed_val(tp[3]);
- modp = erts_get_module(mod);
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(mod, code_ix);
/*
* Try the export entry first to allow disassembly of special functions
* such as erts_debug:apply/4. Then search for it in the module.
*/
-
- if ((ep = erts_find_function(mod, name, arity)) != NULL) {
+ if ((ep = erts_find_function(mod, name, arity, code_ix)) != NULL) {
/* XXX: add "&& ep->address != ep->code+3" condition?
* Consider a traced function.
* Its ep will have ep->address == ep->code+3.
@@ -241,9 +255,9 @@ erts_debug_disassemble_1(BIF_ALIST_1)
* But this code_ptr will point to the start of the Export,
* not the function's func_info instruction. BOOM !?
*/
- code_ptr = ((BeamInstr *) ep->address) - 5;
+ code_ptr = ((BeamInstr *) ep->addressv[code_ix]) - 5;
funcinfo = code_ptr+2;
- } else if (modp == NULL || (code_base = modp->code) == NULL) {
+ } else if (modp == NULL || (code_base = modp->curr.code) == NULL) {
BIF_RET(am_undef);
} else {
n = code_base[MI_NUM_FUNCTIONS];
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 6d3b15cd46..0e9d140908 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -63,11 +63,7 @@
# define PROCESS_MAIN_CHK_LOCKS(P) \
do { \
if ((P)) { \
- erts_pix_lock_t *pix_lock__ = ERTS_PIX2PIXLOCK(internal_pid_index((P)->id));\
erts_proc_lc_chk_only_proc_main((P)); \
- erts_pix_lock(pix_lock__); \
- ASSERT(0 < (P)->lock.refc && (P)->lock.refc < erts_no_schedulers*5);\
- erts_pix_unlock(pix_lock__); \
} \
else \
erts_lc_check_exact(NULL, 0); \
@@ -221,7 +217,6 @@ BeamInstr beam_continue_exit[1];
BeamInstr* em_call_error_handler;
BeamInstr* em_apply_bif;
-BeamInstr* em_call_traced_function;
/* NOTE These should be the only variables containing trace instructions.
@@ -236,11 +231,6 @@ BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
/*
- * We should warn only once for tuple funs.
- */
-static erts_smp_atomic_t warned_for_tuple_funs;
-
-/*
* All Beam instructions in numerical order.
*/
@@ -495,7 +485,7 @@ extern int count_instructions;
do { \
if (FCALLS > 0) { \
Eterm* dis_next; \
- SET_I(((Export *) Arg(0))->address); \
+ SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \
dis_next = (Eterm *) *I; \
FCALLS--; \
CHECK_ARGS(I); \
@@ -504,7 +494,7 @@ extern int count_instructions;
&& FCALLS > neg_o_reds) { \
goto save_calls1; \
} else { \
- SET_I(((Export *) Arg(0))->address); \
+ SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \
CHECK_ARGS(I); \
goto context_switch; \
} \
@@ -526,7 +516,7 @@ extern int count_instructions;
# define Dispatchfun() DispatchMacroFun()
#endif
-#define Self(R) R = c_p->id
+#define Self(R) R = c_p->common.id
#define Node(R) R = erts_this_node->sysname
#define Arg(N) I[(N)+1]
@@ -965,17 +955,9 @@ static void save_stacktrace(Process* c_p, BeamInstr* pc, Eterm* reg,
static struct StackTrace * get_trace_from_exc(Eterm exc);
static Eterm make_arglist(Process* c_p, Eterm* reg, int a);
-#if defined(VXWORKS)
-static int init_done;
-#endif
-
void
init_emulator(void)
{
-#if defined(VXWORKS)
- init_done = 0;
-#endif
- erts_smp_atomic_init_nob(&warned_for_tuple_funs, (erts_aint_t) 0);
process_main();
}
@@ -1092,11 +1074,11 @@ init_emulator(void)
void
dtrace_drvport_str(ErlDrvPort drvport, char *port_buf)
{
- Port *port = erts_drvport2port(drvport);
+ Port *port = erts_drvport2port(drvport, NULL);
erts_snprintf(port_buf, DTRACE_TERM_BUF_SIZE, "#Port<%lu.%lu>",
- port_channel_no(port->id),
- port_number(port->id));
+ port_channel_no(port->common.id),
+ port_number(port->common.id));
}
#endif
/*
@@ -1107,9 +1089,7 @@ dtrace_drvport_str(ErlDrvPort drvport, char *port_buf)
*/
void process_main(void)
{
-#if !defined(VXWORKS)
static int init_done = 0;
-#endif
Process* c_p = NULL;
int reds_used;
#ifdef DEBUG
@@ -1215,7 +1195,7 @@ void process_main(void)
c_p = schedule(c_p, reds_used);
ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
#ifdef DEBUG
- pid = c_p->id; /* Save for debugging purpouses */
+ pid = c_p->common.id; /* Save for debugging purpouses */
#endif
ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
PROCESS_MAIN_CHK_LOCKS(c_p);
@@ -1247,7 +1227,7 @@ void process_main(void)
reds = c_p->fcalls;
if (ERTS_PROC_GET_SAVED_CALLS_BUF(c_p)
- && (c_p->trace_flags & F_SENSITIVE) == 0) {
+ && (ERTS_TRACE_FLAGS(c_p) & F_SENSITIVE) == 0) {
neg_o_reds = -reds;
FCALLS = REDS_IN(c_p) = 0;
} else {
@@ -1507,7 +1487,7 @@ void process_main(void)
*/
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address);
+ BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
}
#endif
@@ -1522,7 +1502,7 @@ void process_main(void)
SET_CP(c_p, I+2);
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address);
+ BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
}
#endif
@@ -1535,7 +1515,7 @@ void process_main(void)
OpCase(i_call_ext_only_e):
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address);
+ BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
}
#endif
@@ -1611,6 +1591,7 @@ void process_main(void)
reg[0] = r(0);
result = erl_send(c_p, r(0), x(1));
PreFetch(0, next);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
PROCESS_MAIN_CHK_LOCKS(c_p);
if (c_p->mbuf || MSO(c_p).overhead >= BIN_VHEAP_SZ(c_p)) {
@@ -1826,13 +1807,12 @@ void process_main(void)
msgp = PEEK_MESSAGE(c_p);
if (msgp)
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
- else {
+ else
#endif
+ {
SET_I((BeamInstr *) Arg(0));
Goto(*I); /* Jump to a wait or wait_timeout instruction */
-#ifdef ERTS_SMP
}
-#endif
}
ErtsMoveMsgAttachmentIntoProc(msgp, c_p, E, HTOP, FCALLS,
{
@@ -1887,14 +1867,14 @@ void process_main(void)
erts_fprintf(stderr,
"Dtrace -> (%T) stop spreading "
"tag %T with message %T\r\n",
- c_p->id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp));
+ c_p->common.id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp));
#endif
} else {
#ifdef DTRACE_TAG_HARDDEBUG
erts_fprintf(stderr,
"Dtrace -> (%T) kill tag %T with "
"message %T\r\n",
- c_p->id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp));
+ c_p->common.id,DT_UTAG(c_p),ERL_MESSAGE_TERM(msgp));
#endif
DT_UTAG(c_p) = NIL;
SEQ_TRACE_TOKEN(c_p) = NIL;
@@ -1919,7 +1899,7 @@ void process_main(void)
erts_fprintf(stderr,
"Dtrace -> (%T) receive tag (%T) "
"with message %T\r\n",
- c_p->id, DT_UTAG(c_p), ERL_MESSAGE_TERM(msgp));
+ c_p->common.id, DT_UTAG(c_p), ERL_MESSAGE_TERM(msgp));
#endif
} else {
#endif
@@ -1935,7 +1915,7 @@ void process_main(void)
}
msg = ERL_MESSAGE_TERM(msgp);
seq_trace_output(SEQ_TRACE_TOKEN(c_p), msg, SEQ_TRACE_RECEIVE,
- c_p->id, c_p);
+ c_p->common.id, c_p);
#ifdef USE_VM_PROBES
}
#endif
@@ -2061,11 +2041,11 @@ void process_main(void)
OpCase(wait_f):
wait2: {
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
c_p->i = (BeamInstr *) Arg(0); /* L1 */
SWAPOUT;
c_p->arity = 0;
- c_p->status = P_WAITING;
+ erts_smp_atomic32_read_band_relb(&c_p->state, ~ERTS_PSFLG_ACTIVE);
+ ASSERT(!ERTS_PROC_IS_EXITING(c_p));
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
c_p->current = NULL;
goto do_schedule;
@@ -2588,6 +2568,7 @@ void process_main(void)
reg[0] = r(0);
result = (*bf)(c_p, reg, I);
ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(result));
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
ERTS_HOLE_CHECK(c_p);
ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
PROCESS_MAIN_CHK_LOCKS(c_p);
@@ -3144,10 +3125,6 @@ void process_main(void)
c_p->arg_reg[0] = r(0);
SWAPOUT;
c_p->i = I;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS);
- if (c_p->status != P_SUSPENDED)
- erts_add_to_runq(c_p);
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS);
goto do_schedule1;
}
@@ -3326,7 +3303,6 @@ void process_main(void)
PROCESS_MAIN_CHK_LOCKS(c_p);
bif_nif_arity = I[-1];
ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
ASSERT(!ERTS_PROC_IS_EXITING(c_p));
{
@@ -3371,7 +3347,6 @@ void process_main(void)
bif_nif_arity = I[-1];
ASSERT(bif_nif_arity <= 3);
ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
reg[0] = r(0);
{
Eterm (*bf)(Process*, Eterm*, BeamInstr*) = vbf;
@@ -4580,64 +4555,6 @@ void process_main(void)
* Trace and debugging support.
*/
- /*
- * At this point, I points to the code[3] in the export entry for
- * a trace-enabled function.
- *
- * code[0]: Module
- * code[1]: Function
- * code[2]: Arity
- * code[3]: &&call_traced_function
- * code[4]: Address of function.
- */
- OpCase(call_traced_function): {
- if (IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
- unsigned offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
- Export* ep = (Export *) (((char *)I)-offset);
- Uint32 flags;
-
- SWAPOUT;
- reg[0] = r(0);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- flags = erts_call_trace(c_p, ep->code, ep->match_prog_set, reg,
- 0, &c_p->tracer_proc);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
- SWAPIN;
-
- if (flags & MATCH_SET_RX_TRACE) {
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- if (E - 3 < HTOP) {
- /* SWAPOUT, SWAPIN was done and r(0) was saved above */
- PROCESS_MAIN_CHK_LOCKS(c_p);
- FCALLS -= erts_garbage_collect(c_p, 3, reg, ep->code[2]);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- r(0) = reg[0];
- SWAPIN;
- }
- E -= 3;
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- ASSERT(is_CP((BeamInstr)(ep->code)));
- ASSERT(is_internal_pid(c_p->tracer_proc) ||
- is_internal_port(c_p->tracer_proc));
- E[2] = make_cp(c_p->cp); /* Code in lower range on halfword */
- E[1] = am_true; /* Process tracer */
- E[0] = make_cp(ep->code);
- c_p->cp = (flags & MATCH_SET_EXCEPTION_TRACE)
- ? beam_exception_trace : beam_return_trace;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- c_p->trace_flags |= F_EXCEPTION_TRACE;
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- }
- }
- SET_I((BeamInstr *)Arg(0));
- Dispatch();
- }
-
OpCase(return_trace): {
BeamInstr* code = (BeamInstr *) (UWord) E[0];
@@ -4652,80 +4569,22 @@ void process_main(void)
Goto(*I);
}
- OpCase(i_count_breakpoint): {
+ OpCase(i_generic_breakpoint): {
BeamInstr real_I;
-
- ErtsCountBreak(c_p, (BeamInstr *) I, &real_I);
+ ASSERT(I[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+ SWAPOUT;
+ reg[0] = r(0);
+ real_I = erts_generic_breakpoint(c_p, I, reg);
+ r(0) = reg[0];
+ SWAPIN;
ASSERT(VALID_INSTR(real_I));
Goto(real_I);
}
- /* need to send mfa instead of bdt pointer
- * the pointer might be deallocated.
- */
-
- OpCase(i_time_breakpoint): {
- BeamInstr real_I;
- BpData **bds = (BpData **) (I)[-4];
- BpDataTime *bdt = NULL;
- Uint ix = 0;
-#ifdef ERTS_SMP
- ix = c_p->scheduler_data->no - 1;
-#else
- ix = 0;
-#endif
- bdt = (BpDataTime *)bds[ix];
-
- ASSERT((I)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- ASSERT(bdt);
- bdt = (BpDataTime *) bdt->next;
- ASSERT(bdt);
- bds[ix] = (BpData *) bdt;
- real_I = bdt->orig_instr;
- ASSERT(VALID_INSTR(real_I));
-
- if (IS_TRACED_FL(c_p, F_TRACE_CALLS) && !(bdt->pause)) {
- if ( (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) ||
- (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) ||
- (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace))) {
- /* This _IS_ a tail recursive call */
- SWAPOUT;
- erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_TAIL_CALL);
- SWAPIN;
- } else {
- SWAPOUT;
- erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_CALL);
-
- /* r register needs to be copied to the array
- * for the garbage collector
- */
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- if (E - 2 < HTOP) {
- reg[0] = r(0);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- FCALLS -= erts_garbage_collect(c_p, 2, reg, I[-1]);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- r(0) = reg[0];
- }
- SWAPIN;
-
- ASSERT(c_p->htop <= E && E <= c_p->hend);
-
- E -= 2;
- E[0] = make_cp(I);
- E[1] = make_cp(c_p->cp); /* original return address */
- c_p->cp = beam_return_time_trace;
- }
- }
-
- Goto(real_I);
- }
-
OpCase(i_return_time_trace): {
BeamInstr *pc = (BeamInstr *) (UWord) E[0];
SWAPOUT;
- erts_trace_time_break(c_p, pc, NULL, ERTS_BP_CALL_TIME_RETURN);
+ erts_trace_time_return(c_p, pc);
SWAPIN;
c_p->cp = NULL;
SET_I((BeamInstr *) cp_val(E[1]));
@@ -4733,114 +4592,6 @@ void process_main(void)
Goto(*I);
}
- OpCase(i_trace_breakpoint):
- if (! IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
- BeamInstr real_I;
-
- ErtsBreakSkip(c_p, (BeamInstr *) I, &real_I);
- Goto(real_I);
- }
- /* Fall through to next case */
- OpCase(i_mtrace_breakpoint): {
- BeamInstr real_I;
- Uint32 flags;
- Eterm tracer_pid;
- Uint* cpp;
- int return_to_trace = 0, need = 0;
- flags = 0;
- SWAPOUT;
- reg[0] = r(0);
-
- if (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) {
- cpp = &E[2];
- } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace)) {
- return_to_trace = !0;
- cpp = &E[0];
- } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) {
- return_to_trace = !0;
- cpp = &E[0];
- } else {
- cpp = NULL;
- }
- if (cpp) {
- /* This _IS_ a tail recursive call, if there are
- * return_trace and/or i_return_to_trace stackframes
- * on the stack, they are not intermixed with y registers
- */
- BeamInstr *cp_save = c_p->cp;
- for (;;) {
- ASSERT(is_CP(*cpp));
- if (*cp_val(*cpp) == (BeamInstr) OpCode(return_trace)) {
- cpp += 3;
- } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_to_trace)) {
- return_to_trace = !0;
- cpp += 1;
- } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_time_trace)) {
- cpp += 2;
- } else
- break;
- }
- c_p->cp = (BeamInstr *) cp_val(*cpp);
- ASSERT(is_CP(*cpp));
- ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- real_I = erts_trace_break(c_p, I, reg, &flags, &tracer_pid);
- ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
- SWAPIN; /* Needed by shared heap. */
- c_p->cp = cp_save;
- } else {
- ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- real_I = erts_trace_break(c_p, I, reg, &flags, &tracer_pid);
- ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
- SWAPIN; /* Needed by shared heap. */
- }
-
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
-
- if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
- need += 1;
- }
- if (flags & MATCH_SET_RX_TRACE) {
- need += 3;
- }
- if (need) {
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- if (E - need < HTOP) {
- /* SWAPOUT was done and r(0) was saved above */
- PROCESS_MAIN_CHK_LOCKS(c_p);
- FCALLS -= erts_garbage_collect(c_p, need, reg, I[-1]);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- r(0) = reg[0];
- SWAPIN;
- }
- }
- if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
- E -= 1;
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- E[0] = make_cp(c_p->cp);
- c_p->cp = (BeamInstr *) beam_return_to_trace;
- }
- if (flags & MATCH_SET_RX_TRACE) {
- E -= 3;
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- ASSERT(is_CP((Eterm) (UWord) (I - 3)));
- ASSERT(am_true == tracer_pid ||
- is_internal_pid(tracer_pid) || is_internal_port(tracer_pid));
- E[2] = make_cp(c_p->cp);
- E[1] = tracer_pid;
- E[0] = make_cp(I - 3); /* We ARE at the beginning of an
- instruction,
- the funcinfo is above i. */
- c_p->cp =
- (flags & MATCH_SET_EXCEPTION_TRACE)
- ? beam_exception_trace : beam_return_trace;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- c_p->trace_flags |= F_EXCEPTION_TRACE;
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- }
- Goto(real_I);
- }
-
OpCase(i_return_to_trace): {
if (IS_TRACED_FL(c_p, F_TRACE_RETURN_TO)) {
Uint *cpp = (Uint*) E;
@@ -5110,9 +4861,6 @@ void process_main(void)
c_p->arity = 1; /* One living register (the 'true' return value) */
SWAPOUT;
c_p->i = I + 1; /* Next instruction */
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS);
- erts_add_to_runq(c_p);
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS);
c_p->current = NULL;
goto do_schedule;
}
@@ -5193,7 +4941,6 @@ void process_main(void)
#endif /* NO_JUMP_TABLE */
em_call_error_handler = OpCode(call_error_handler);
- em_call_traced_function = OpCode(call_traced_function);
em_apply_bif = OpCode(apply_bif);
beam_apply[0] = (BeamInstr) OpCode(i_apply);
@@ -5234,7 +4981,7 @@ void process_main(void)
save_calls(c_p, (Export *) Arg(0));
- SET_I(((Export *) Arg(0))->address);
+ SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]);
dis_next = (Eterm *) *I;
FCALLS--;
@@ -5510,7 +5257,7 @@ terminate_proc(Process* c_p, Eterm Value)
/* EXF_LOG is a primary exception flag */
if (c_p->freason & EXF_LOG) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
- erts_dsprintf(dsbufp, "Error in process %T ", c_p->id);
+ erts_dsprintf(dsbufp, "Error in process %T ", c_p->common.id);
if (erts_is_alive)
erts_dsprintf(dsbufp, "on node %T ", erts_this_node->sysname);
erts_dsprintf(dsbufp,"with exit value: %0.*T\n", display_items, Value);
@@ -5911,7 +5658,8 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func)
/*
* Search for the error_handler module.
*/
- ep = erts_find_function(erts_proc_get_error_handler(p), func, 3);
+ ep = erts_find_function(erts_proc_get_error_handler(p), func, 3,
+ erts_active_code_ix());
if (ep == NULL) { /* No error handler */
p->current = fi;
p->freason = EXC_UNDEF;
@@ -5941,7 +5689,7 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func)
reg[0] = fi[0];
reg[1] = fi[1];
reg[2] = args;
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
@@ -5955,7 +5703,7 @@ apply_setup_error_handler(Process* p, Eterm module, Eterm function, Uint arity,
* there is no error handler module.
*/
- if ((ep = erts_find_export_entry(erts_proc_get_error_handler(p),
+ if ((ep = erts_active_export_entry(erts_proc_get_error_handler(p),
am_undefined_function, 3)) == NULL) {
return NULL;
} else {
@@ -6062,7 +5810,7 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg)
* Note: All BIFs have export entries; thus, no special case is needed.
*/
- if ((ep = erts_find_export_entry(module, function, arity)) == NULL) {
+ if ((ep = erts_active_export_entry(module, function, arity)) == NULL) {
if ((ep = apply_setup_error_handler(p, module, function, arity, reg)) == NULL) goto error;
} else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) {
save_calls(p, ep);
@@ -6070,11 +5818,11 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg)
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr *fptr = (BeamInstr *) ep->address;
+ BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()];
DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]);
}
#endif
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
static BeamInstr*
@@ -6116,7 +5864,7 @@ fixed_apply(Process* p, Eterm* reg, Uint arity)
* Note: All BIFs have export entries; thus, no special case is needed.
*/
- if ((ep = erts_find_export_entry(module, function, arity)) == NULL) {
+ if ((ep = erts_active_export_entry(module, function, arity)) == NULL) {
if ((ep = apply_setup_error_handler(p, module, function, arity, reg)) == NULL)
goto error;
} else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) {
@@ -6125,11 +5873,11 @@ fixed_apply(Process* p, Eterm* reg, Uint arity)
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr *fptr = (BeamInstr *) ep->address;
+ BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()];
DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]);
}
#endif
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
int
@@ -6206,9 +5954,7 @@ erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* re
*/
erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p);
- if (c_p->msg.len > 0) {
- erts_add_to_runq(c_p);
- } else {
+ if (!c_p->msg.len) {
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
c_p->fvalue = NIL;
PROCESS_MAIN_CHK_LOCKS(c_p);
@@ -6216,14 +5962,12 @@ erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* re
ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
PROCESS_MAIN_CHK_LOCKS(c_p);
erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
#ifdef ERTS_SMP
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p);
- if (c_p->msg.len > 0)
- erts_add_to_runq(c_p);
- else
+ if (!c_p->msg.len)
#endif
- c_p->status = P_WAITING;
+ erts_smp_atomic32_read_band_relb(&c_p->state, ~ERTS_PSFLG_ACTIVE);
+ ASSERT(!ERTS_PROC_IS_EXITING(c_p));
}
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
c_p->current = bif_export[BIF_hibernate_3]->code;
@@ -6240,7 +5984,6 @@ call_fun(Process* p, /* Current process. */
Eterm fun = reg[arity];
Eterm hdr;
int i;
- Eterm function;
Eterm* hp;
if (!is_boxed(fun)) {
@@ -6311,7 +6054,7 @@ call_fun(Process* p, /* Current process. */
Export* ep;
Module* modp;
Eterm module;
-
+ ErtsCodeIndex code_ix = erts_active_code_ix();
/*
* No arity. There is no module loaded that defines the fun,
@@ -6319,9 +6062,9 @@ call_fun(Process* p, /* Current process. */
* representation (the module has never been loaded),
* or the module defining the fun has been unloaded.
*/
-
module = fe->module;
- if ((modp = erts_get_module(module)) != NULL && modp->code != NULL) {
+ if ((modp = erts_get_module(module, code_ix)) != NULL
+ && modp->curr.code != NULL) {
/*
* There is a module loaded, but obviously the fun is not
* defined in it. We must not call the error_handler
@@ -6336,7 +6079,7 @@ call_fun(Process* p, /* Current process. */
*/
ep = erts_find_function(erts_proc_get_error_handler(p),
- am_undefined_lambda, 3);
+ am_undefined_lambda, 3, code_ix);
if (ep == NULL) { /* No error handler */
p->current = NULL;
p->freason = EXC_UNDEF;
@@ -6346,7 +6089,7 @@ call_fun(Process* p, /* Current process. */
reg[1] = fun;
reg[2] = args;
reg[3] = NIL;
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
}
} else if (is_export_header(hdr)) {
@@ -6358,7 +6101,7 @@ call_fun(Process* p, /* Current process. */
if (arity == actual_arity) {
DTRACE_GLOBAL_CALL(p, ep->code[0], ep->code[1], (Uint)ep->code[2]);
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
} else {
/*
* Wrong arity. First build a list of the arguments.
@@ -6378,63 +6121,6 @@ call_fun(Process* p, /* Current process. */
p->fvalue = TUPLE2(hp, fun, args);
return NULL;
}
- } else if (hdr == make_arityval(2)) {
- Eterm* tp;
- Export* ep;
- Eterm module;
-
- tp = tuple_val(fun);
- module = tp[1];
- function = tp[2];
- if (!is_atom(module) || !is_atom(function)) {
- goto badfun;
- }
-
- /*
- * If this is the first time a tuple fun is used,
- * send a warning to the logger.
- */
- if (erts_smp_atomic_xchg_nob(&warned_for_tuple_funs,
- (erts_aint_t) 1) == 0) {
- erts_dsprintf_buf_t* dsbufp;
-
- dsbufp = erts_create_logger_dsbuf();
- erts_dsprintf(dsbufp, "Call to tuple fun {%T,%T}.\n\n"
- "Tuple funs are deprecated and will be removed "
- "in R16. Use \"fun M:F/A\" instead, for example "
- "\"fun %T:%T/%d\".\n\n"
- "(This warning will only be shown the first time "
- "a tuple fun is called.)\n",
- module, function, module, function, arity);
- erts_send_warning_to_logger(p->group_leader, dsbufp);
- }
-
- if ((ep = erts_find_export_entry(module, function, arity)) == NULL) {
- ep = erts_find_export_entry(erts_proc_get_error_handler(p),
- am_undefined_function, 3);
- if (ep == NULL) {
- p->freason = EXC_UNDEF;
- return 0;
- }
- if (is_non_value(args)) {
- Uint sz = 2 * arity;
- if (HeapWordsLeft(p) < sz) {
- erts_garbage_collect(p, sz, reg, arity);
- }
- hp = HEAP_TOP(p);
- HEAP_TOP(p) += sz;
- args = NIL;
- while (arity-- > 0) {
- args = CONS(hp, reg[arity], args);
- hp += 2;
- }
- }
- reg[0] = module;
- reg[1] = function;
- reg[2] = args;
- }
- DTRACE_GLOBAL_CALL(p, module, function, arity);
- return ep->address;
} else {
badfun:
p->current = NULL;
@@ -6500,7 +6186,7 @@ new_fun(Process* p, Eterm* reg, ErlFunEntry* fe, int num_free)
MSO(p).first = (struct erl_off_heap_header*) funp;
funp->fe = fe;
funp->num_free = num_free;
- funp->creator = p->id;
+ funp->creator = p->common.id;
#ifdef HIPE
funp->native_address = fe->native_address;
#endif
@@ -6537,7 +6223,8 @@ erts_is_builtin(Eterm Mod, Eterm Name, int arity)
if ((ep = export_get(&e)) == NULL) {
return 0;
}
- return ep->address == ep->code+3 && (ep->code[3] == (BeamInstr) em_apply_bif);
+ return ep->addressv[erts_active_code_ix()] == ep->code+3
+ && (ep->code[3] == (BeamInstr) em_apply_bif);
}
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index dd788df6e4..b51f076a5d 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -352,27 +352,6 @@ typedef struct LoaderState {
int loc_size; /* Size of location info in bytes (2/4) */
} LoaderState;
-/*
- * Layout of the line table.
- */
-
-#define MI_LINE_FNAME_PTR 0
-#define MI_LINE_LOC_TAB 1
-#define MI_LINE_LOC_SIZE 2
-#define MI_LINE_FUNC_TAB 3
-
-#define LINE_INVALID_LOCATION (0)
-
-/*
- * Macros for manipulating locations.
- */
-
-#define IS_VALID_LOCATION(File, Line) \
- ((unsigned) (File) < 255 && (unsigned) (Line) < ((1 << 24) - 1))
-#define MAKE_LOCATION(File, Line) (((File) << 24) | (Line))
-#define LOC_FILE(Loc) ((Loc) >> 24)
-#define LOC_LINE(Loc) ((Loc) & ((1 << 24)-1))
-
#define GetTagAndValue(Stp, Tag, Val) \
do { \
BeamInstr __w; \
@@ -496,7 +475,8 @@ typedef struct LoaderState {
} while (0)
-static void free_state(LoaderState* stp);
+static void free_loader_state(Binary* magic);
+static void loader_state_dtor(Binary* magic);
static Eterm insert_new_code(Process *c_p, ErtsProcLocks c_p_locks,
Eterm group_leader, Eterm module,
BeamInstr* code, Uint size);
@@ -507,6 +487,7 @@ static int verify_chunks(LoaderState* stp);
static int load_atom_table(LoaderState* stp);
static int load_import_table(LoaderState* stp);
static int read_export_table(LoaderState* stp);
+static int is_bif(Eterm mod, Eterm func, unsigned arity);
static int read_lambda_table(LoaderState* stp);
static int read_literal_table(LoaderState* stp);
static int read_line_table(LoaderState* stp);
@@ -548,22 +529,9 @@ static Eterm native_addresses(Process* p, Eterm mod);
int patch_funentries(Eterm Patchlist);
int patch(Eterm Addresses, Uint fe);
static int safe_mul(UWord a, UWord b, UWord* resp);
-static void lookup_loc(FunctionInfo* fi, BeamInstr* pc,
- BeamInstr* modp, int idx);
-
static int must_swap_floats;
-/*
- * The following variables keep a sorted list of address ranges for
- * each module. It allows us to quickly find a function given an
- * instruction pointer.
- */
-Range* modules = NULL; /* Sorted lists of module addresses. */
-int num_loaded_modules; /* Number of loaded modules. */
-int allocated_modules; /* Number of slots allocated. */
-Range* mid_module = NULL; /* Cached search start point */
-
Uint erts_total_code_size;
/**********************************************************************/
@@ -579,11 +547,7 @@ void init_load(void)
f.fd = 1.0;
must_swap_floats = (f.fw[0] == 0);
- allocated_modules = 128;
- modules = (Range *) erts_alloc(ERTS_ALC_T_MODULE_REFS,
- allocated_modules*sizeof(Range));
- mid_module = modules;
- num_loaded_modules = 0;
+ erts_init_ranges();
}
static void
@@ -595,7 +559,7 @@ define_file(LoaderState* stp, char* name, int idx)
}
Eterm
-erts_load_module(Process *c_p,
+erts_preload_module(Process *c_p,
ErtsProcLocks c_p_locks,
Eterm group_leader, /* Group leader or NIL if none. */
Eterm* modp, /*
@@ -605,15 +569,16 @@ erts_load_module(Process *c_p,
byte* code, /* Points to the code to load */
Uint size) /* Size of code to load. */
{
- LoaderState* stp = erts_alloc_loader_state();
+ Binary* magic = erts_alloc_loader_state();
Eterm retval;
- retval = erts_prepare_loading(stp, c_p, group_leader, modp,
+ ASSERT(!erts_initialized);
+ retval = erts_prepare_loading(magic, c_p, group_leader, modp,
code, size);
if (retval != NIL) {
return retval;
}
- return erts_finish_loading(stp, c_p, c_p_locks, modp);
+ return erts_finish_loading(magic, c_p, c_p_locks, modp);
}
/* #define LOAD_MEMORY_HARD_DEBUG 1*/
@@ -629,11 +594,13 @@ extern void check_allocated_block(Uint type, void *blk);
#endif
Eterm
-erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
+erts_prepare_loading(Binary* magic, Process *c_p, Eterm group_leader,
Eterm* modp, byte* code, Uint unloaded_size)
{
Eterm retval = am_badfile;
+ LoaderState* stp;
+ stp = ERTS_MAGIC_BIN_DATA(magic);
stp->module = *modp;
stp->group_leader = group_leader;
@@ -666,7 +633,7 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
/*
* Initialize code area.
*/
- stp->code_buffer_size = erts_next_heap_size(2048 + stp->num_functions, 0);
+ stp->code_buffer_size = 2048 + stp->num_functions;
stp->code = (BeamInstr *) erts_alloc(ERTS_ALC_T_CODE,
sizeof(BeamInstr) * stp->code_buffer_size);
@@ -679,8 +646,6 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
stp->code[MI_COMPILE_PTR] = 0;
stp->code[MI_COMPILE_SIZE] = 0;
stp->code[MI_COMPILE_SIZE_ON_HEAP] = 0;
- stp->code[MI_NUM_BREAKPOINTS] = 0;
-
/*
* Read the atom table.
@@ -774,23 +739,24 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
load_error:
if (retval != NIL) {
- free_state(stp);
+ free_loader_state(magic);
}
return retval;
}
Eterm
-erts_finish_loading(LoaderState* stp, Process* c_p,
+erts_finish_loading(Binary* magic, Process* c_p,
ErtsProcLocks c_p_locks, Eterm* modp)
{
Eterm retval;
+ LoaderState* stp = ERTS_MAGIC_BIN_DATA(magic);
/*
* No other process may run since we will update the export
* table which is not protected by any locks.
*/
- ERTS_SMP_LC_ASSERT(erts_initialized == 0 ||
+ ERTS_SMP_LC_ASSERT(erts_initialized == 0 || erts_has_code_write_permission() ||
erts_smp_thr_progress_is_blocking());
/*
@@ -811,7 +777,6 @@ erts_finish_loading(LoaderState* stp, Process* c_p,
* exported and imported functions. This can't fail.
*/
- erts_export_consolidate();
CHKBLK(ERTS_ALC_T_CODE,stp->code);
final_touch(stp);
@@ -837,16 +802,20 @@ erts_finish_loading(LoaderState* stp, Process* c_p,
}
load_error:
- free_state(stp);
+ free_loader_state(magic);
return retval;
}
-LoaderState*
+Binary*
erts_alloc_loader_state(void)
{
LoaderState* stp;
+ Binary* magic;
- stp = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(LoaderState));
+ magic = erts_create_magic_binary(sizeof(LoaderState),
+ loader_state_dtor);
+ erts_refc_inc(&magic->refc, 1);
+ stp = ERTS_MAGIC_BIN_DATA(magic);
stp->bin = NULL;
stp->function = THE_NON_VALUE; /* Function not known yet */
stp->arity = 0;
@@ -875,76 +844,123 @@ erts_alloc_loader_state(void)
stp->line_instr = 0;
stp->func_line = 0;
stp->fname = 0;
- return stp;
+ return magic;
+}
+
+/*
+ * Return the module name (a tagged atom) for the prepared code
+ * in the magic binary, or NIL if the binary does not contain
+ * prepared code.
+ */
+Eterm
+erts_module_for_prepared_code(Binary* magic)
+{
+ LoaderState* stp;
+
+ if (ERTS_MAGIC_BIN_DESTRUCTOR(magic) != loader_state_dtor) {
+ return NIL;
+ }
+ stp = ERTS_MAGIC_BIN_DATA(magic);
+ if (stp->code != 0) {
+ return stp->module;
+ } else {
+ return NIL;
+ }
}
static void
-free_state(LoaderState* stp)
+free_loader_state(Binary* magic)
{
+ loader_state_dtor(magic);
+ if (erts_refc_dectest(&magic->refc, 0) == 0) {
+ erts_bin_free(magic);
+ }
+}
+
+/*
+ * This destructor function can safely be called multiple times.
+ */
+static void
+loader_state_dtor(Binary* magic)
+{
+ LoaderState* stp = ERTS_MAGIC_BIN_DATA(magic);
+
if (stp->bin != 0) {
driver_free_binary(stp->bin);
+ stp->bin = 0;
}
if (stp->code != 0) {
erts_free(ERTS_ALC_T_CODE, stp->code);
+ stp->code = 0;
}
- if (stp->labels != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->labels);
+ if (stp->labels != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->labels);
+ stp->labels = 0;
}
- if (stp->atom != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->atom);
+ if (stp->atom != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->atom);
+ stp->atom = 0;
}
- if (stp->import != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->import);
+ if (stp->import != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->import);
+ stp->import = 0;
}
- if (stp->export != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->export);
+ if (stp->export != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->export);
+ stp->export = 0;
}
if (stp->lambdas != stp->def_lambdas) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->lambdas);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->lambdas);
+ stp->lambdas = stp->def_lambdas;
}
- if (stp->literals != NULL) {
+ if (stp->literals != 0) {
int i;
for (i = 0; i < stp->num_literals; i++) {
- if (stp->literals[i].heap != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP,
+ if (stp->literals[i].heap != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE,
(void *) stp->literals[i].heap);
+ stp->literals[i].heap = 0;
}
}
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->literals);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literals);
+ stp->literals = 0;
}
- while (stp->literal_patches != NULL) {
+ while (stp->literal_patches != 0) {
LiteralPatch* next = stp->literal_patches->next;
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->literal_patches);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literal_patches);
stp->literal_patches = next;
}
- while (stp->string_patches != NULL) {
+ while (stp->string_patches != 0) {
StringPatch* next = stp->string_patches->next;
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->string_patches);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->string_patches);
stp->string_patches = next;
}
- while (stp->genop_blocks) {
- GenOpBlock* next = stp->genop_blocks->next;
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->genop_blocks);
- stp->genop_blocks = next;
- }
if (stp->line_item != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->line_item);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->line_item);
+ stp->line_item = 0;
}
if (stp->line_instr != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->line_instr);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->line_instr);
+ stp->line_instr = 0;
}
if (stp->func_line != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->func_line);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->func_line);
+ stp->func_line = 0;
}
if (stp->fname != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->fname);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->fname);
+ stp->fname = 0;
}
- erts_free(ERTS_ALC_T_LOADER_TMP, stp);
+ /*
+ * The following data items should have been freed earlier.
+ */
+
+ ASSERT(stp->genop_blocks == 0);
}
static Eterm
@@ -954,7 +970,6 @@ insert_new_code(Process *c_p, ErtsProcLocks c_p_locks,
{
Module* modp;
Eterm retval;
- int i;
if ((retval = beam_make_current_old(c_p, c_p_locks, module)) != NIL) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
@@ -971,30 +986,15 @@ insert_new_code(Process *c_p, ErtsProcLocks c_p_locks,
erts_total_code_size += size;
modp = erts_put_module(module);
- modp->code = code;
- modp->code_length = size;
- modp->catches = BEAM_CATCHES_NIL; /* Will be filled in later. */
+ modp->curr.code = code;
+ modp->curr.code_length = size;
+ modp->curr.catches = BEAM_CATCHES_NIL; /* Will be filled in later. */
/*
- * Update address table (used for finding a function from a PC value).
+ * Update ranges (used for finding a function from a PC value).
*/
- if (num_loaded_modules == allocated_modules) {
- allocated_modules *= 2;
- modules = (Range *) erts_realloc(ERTS_ALC_T_MODULE_REFS,
- (void *) modules,
- allocated_modules * sizeof(Range));
- }
- for (i = num_loaded_modules; i > 0; i--) {
- if (code > modules[i-1].start) {
- break;
- }
- modules[i] = modules[i-1];
- }
- modules[i].start = code;
- modules[i].end = (BeamInstr *) (((byte *)code) + size);
- num_loaded_modules++;
- mid_module = &modules[num_loaded_modules/2];
+ erts_update_ranges(code, size);
return NIL;
}
@@ -1217,9 +1217,8 @@ load_atom_table(LoaderState* stp)
GetInt(stp, 4, stp->num_atoms);
stp->num_atoms++;
- stp->atom = erts_alloc(ERTS_ALC_T_LOADER_TMP,
- erts_next_heap_size((stp->num_atoms*sizeof(Eterm)),
- 0));
+ stp->atom = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_atoms*sizeof(Eterm));
/*
* Read all atoms.
@@ -1263,10 +1262,8 @@ load_import_table(LoaderState* stp)
int i;
GetInt(stp, 4, stp->num_imports);
- stp->import = erts_alloc(ERTS_ALC_T_LOADER_TMP,
- erts_next_heap_size((stp->num_imports *
- sizeof(ImportEntry)),
- 0));
+ stp->import = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_imports * sizeof(ImportEntry));
for (i = 0; i < stp->num_imports; i++) {
int n;
Eterm mod;
@@ -1296,7 +1293,7 @@ load_import_table(LoaderState* stp)
* If the export entry refers to a BIF, get the pointer to
* the BIF function.
*/
- if ((e = erts_find_export_entry(mod, func, arity)) != NULL) {
+ if ((e = erts_active_export_entry(mod, func, arity)) != NULL) {
if (e->code[3] == (BeamInstr) em_apply_bif) {
stp->import[i].bf = (BifFunction) e->code[4];
if (func == am_load_nif && mod == am_erlang && arity == 2) {
@@ -1315,16 +1312,8 @@ load_import_table(LoaderState* stp)
static int
read_export_table(LoaderState* stp)
{
- static struct {
- Eterm mod;
- Eterm func;
- int arity;
- } allow_redef[] = {
- /* The BIFs that are allowed to be redefined by Erlang code */
- {am_erlang,am_apply,2},
- {am_erlang,am_apply,3},
- };
int i;
+ BeamInstr* address;
GetInt(stp, 4, stp->num_exps);
if (stp->num_exps > stp->num_functions) {
@@ -1332,7 +1321,7 @@ read_export_table(LoaderState* stp)
stp->num_exps, stp->num_functions);
}
stp->export
- = (ExportEntry *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ = (ExportEntry *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
(stp->num_exps * sizeof(ExportEntry)));
for (i = 0; i < stp->num_exps; i++) {
@@ -1340,7 +1329,6 @@ read_export_table(LoaderState* stp)
Uint value;
Eterm func;
Uint arity;
- Export* e;
GetInt(stp, 4, n);
GetAtom(stp, n, func);
@@ -1358,29 +1346,34 @@ read_export_table(LoaderState* stp)
if (value == 0) {
LoadError2(stp, "export table entry %d: label %d not resolved", i, n);
}
- stp->export[i].address = stp->code + value;
+ stp->export[i].address = address = stp->code + value;
/*
- * Check that we are not redefining a BIF (except the ones allowed to
- * redefine).
+ * Find out if there is a BIF with the same name.
*/
- if ((e = erts_find_export_entry(stp->module, func, arity)) != NULL) {
- if (e->code[3] == (BeamInstr) em_apply_bif) {
- int j;
- for (j = 0; j < sizeof(allow_redef)/sizeof(allow_redef[0]); j++) {
- if (stp->module == allow_redef[j].mod &&
- func == allow_redef[j].func &&
- arity == allow_redef[j].arity) {
- break;
- }
- }
- if (j == sizeof(allow_redef)/sizeof(allow_redef[0])) {
- LoadError2(stp, "exported function %T/%d redefines BIF",
- func, arity);
- }
- }
+ if (!is_bif(stp->module, func, arity)) {
+ continue;
+ }
+
+ /*
+ * This is a stub for a BIF.
+ *
+ * It should not be exported, and the information in its
+ * func_info instruction should be invalidated so that it
+ * can be filtered out by module_info(functions) and by
+ * any other functions that walk through all local functions.
+ */
+
+ if (stp->labels[n].patches) {
+ LoadError3(stp, "there are local calls to the stub for "
+ "the BIF %T:%T/%d",
+ stp->module, func, arity);
}
+ stp->export[i].address = NULL;
+ address[-1] = 0;
+ address[-2] = NIL;
+ address[-3] = NIL;
}
return 1;
@@ -1388,15 +1381,39 @@ read_export_table(LoaderState* stp)
return 0;
}
+
+static int
+is_bif(Eterm mod, Eterm func, unsigned arity)
+{
+ Export* e = erts_active_export_entry(mod, func, arity);
+ if (e == NULL) {
+ return 0;
+ }
+ if (e->code[3] != (BeamInstr) em_apply_bif) {
+ return 0;
+ }
+ if (mod == am_erlang && func == am_apply && arity == 3) {
+ /*
+ * erlang:apply/3 is a special case -- it is implemented
+ * as an instruction and it is OK to redefine it.
+ */
+ return 0;
+ }
+ return 1;
+}
+
static int
read_lambda_table(LoaderState* stp)
{
int i;
GetInt(stp, 4, stp->num_lambdas);
- stp->lambdas_allocated = stp->num_lambdas;
- stp->lambdas = (Lambda *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
- stp->num_lambdas * sizeof(Lambda));
+ if (stp->num_lambdas > stp->lambdas_allocated) {
+ ASSERT(stp->lambdas == stp->def_lambdas);
+ stp->lambdas_allocated = stp->num_lambdas;
+ stp->lambdas = (Lambda *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_lambdas * sizeof(Lambda));
+ }
for (i = 0; i < stp->num_lambdas; i++) {
Uint n;
Uint32 Index;
@@ -1446,7 +1463,7 @@ read_literal_table(LoaderState* stp)
stp->file_p = uncompressed;
stp->file_left = (unsigned) uncompressed_sz;
GetInt(stp, 4, stp->num_literals);
- stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_literals * sizeof(Literal));
stp->allocated_literals = stp->num_literals;
@@ -1466,7 +1483,7 @@ read_literal_table(LoaderState* stp)
if ((heap_size = erts_decode_ext_size(p, sz)) < 0) {
LoadError1(stp, "literal %d: bad external format", i);
}
- hp = stp->literals[i].heap = erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ hp = stp->literals[i].heap = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
heap_size*sizeof(Eterm));
stp->literals[i].off_heap.first = 0;
stp->literals[i].off_heap.overhead = 0;
@@ -1538,7 +1555,7 @@ read_line_table(LoaderState* stp)
*/
num_line_items++;
- lp = (BeamInstr *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ lp = (BeamInstr *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
num_line_items * sizeof(BeamInstr));
stp->line_item = lp;
stp->num_line_items = num_line_items;
@@ -1594,7 +1611,7 @@ read_line_table(LoaderState* stp)
*/
if (stp->num_fnames != 0) {
- stp->fname = (Eterm *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->fname = (Eterm *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_fnames *
sizeof(Eterm));
for (i = 0; i < stp->num_fnames; i++) {
@@ -1610,11 +1627,11 @@ read_line_table(LoaderState* stp)
/*
* Allocate the arrays to be filled while code is being loaded.
*/
- stp->line_instr = (LineInstr *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->line_instr = (LineInstr *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_line_instrs *
sizeof(LineInstr));
stp->current_li = 0;
- stp->func_line = (int *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->func_line = (int *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_functions *
sizeof(int));
@@ -1677,7 +1694,7 @@ read_code_header(LoaderState* stp)
* Initialize label table.
*/
- stp->labels = (Label *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->labels = (Label *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_labels * sizeof(Label));
for (i = 0; i < stp->num_labels; i++) {
stp->labels[i].value = 0;
@@ -1703,9 +1720,9 @@ read_code_header(LoaderState* stp)
#define CodeNeed(w) do { \
ASSERT(ci <= code_buffer_size); \
if (code_buffer_size < ci+(w)) { \
- code_buffer_size = erts_next_heap_size(ci+(w), 0); \
- stp->code = code \
- = (BeamInstr *) erts_realloc(ERTS_ALC_T_CODE, \
+ code_buffer_size = 2*ci+(w); \
+ stp->code = code = \
+ (BeamInstr *) erts_realloc(ERTS_ALC_T_CODE, \
(void *) code, \
code_buffer_size * sizeof(BeamInstr)); \
} \
@@ -1731,6 +1748,7 @@ load_code(LoaderState* stp)
GenOp* last_op = NULL;
GenOp** last_op_next = NULL;
int arity;
+ int retval = 1;
/*
* The size of the loaded func_info instruction is needed
@@ -2457,7 +2475,11 @@ load_code(LoaderState* stp)
case op_int_code_end:
stp->code_buffer_size = code_buffer_size;
stp->ci = ci;
- return 1;
+ stp->function = THE_NON_VALUE;
+ stp->genop = NULL;
+ stp->specific_op = -1;
+ retval = 1;
+ goto cleanup;
}
/*
@@ -2471,9 +2493,20 @@ load_code(LoaderState* stp)
}
}
-
load_error:
- return 0;
+ retval = 0;
+
+ cleanup:
+ /*
+ * Clean up everything that is not needed any longer.
+ */
+
+ while (stp->genop_blocks) {
+ GenOpBlock* next = stp->genop_blocks->next;
+ erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->genop_blocks);
+ stp->genop_blocks = next;
+ }
+ return retval;
}
@@ -4265,24 +4298,31 @@ final_touch(LoaderState* stp)
index = next;
}
modp = erts_put_module(stp->module);
- modp->catches = catches;
+ modp->curr.catches = catches;
/*
* Export functions.
*/
for (i = 0; i < stp->num_exps; i++) {
- Export* ep = erts_export_put(stp->module, stp->export[i].function,
- stp->export[i].arity);
+ Export* ep;
+ BeamInstr* address = stp->export[i].address;
+
+ if (address == NULL) {
+ /* Skip stub for a BIF */
+ continue;
+ }
+ ep = erts_export_put(stp->module, stp->export[i].function,
+ stp->export[i].arity);
if (!on_load) {
- ep->address = stp->export[i].address;
+ ep->addressv[erts_staging_code_ix()] = address;
} else {
/*
* Don't make any of the exported functions
* callable yet.
*/
- ep->address = ep->code+3;
- ep->code[4] = (BeamInstr) stp->export[i].address;
+ ep->addressv[erts_staging_code_ix()] = ep->code+3;
+ ep->code[4] = (BeamInstr) address;
}
}
@@ -4926,7 +4966,7 @@ new_label(LoaderState* stp)
int num = stp->num_labels;
stp->num_labels++;
- stp->labels = (Label *) erts_realloc(ERTS_ALC_T_LOADER_TMP,
+ stp->labels = (Label *) erts_realloc(ERTS_ALC_T_PREPARED_CODE,
(void *) stp->labels,
stp->num_labels * sizeof(Label));
stp->labels[num].value = 0;
@@ -4937,7 +4977,8 @@ new_label(LoaderState* stp)
static void
new_literal_patch(LoaderState* stp, int pos)
{
- LiteralPatch* p = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(LiteralPatch));
+ LiteralPatch* p = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ sizeof(LiteralPatch));
p->pos = pos;
p->next = stp->literal_patches;
stp->literal_patches = p;
@@ -4946,7 +4987,7 @@ new_literal_patch(LoaderState* stp, int pos)
static void
new_string_patch(LoaderState* stp, int pos)
{
- StringPatch* p = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(StringPatch));
+ StringPatch* p = erts_alloc(ERTS_ALC_T_PREPARED_CODE, sizeof(StringPatch));
p->pos = pos;
p->next = stp->string_patches;
stp->string_patches = p;
@@ -4964,14 +5005,14 @@ new_literal(LoaderState* stp, Eterm** hpp, Uint heap_size)
ASSERT(stp->num_literals == 0);
stp->allocated_literals = 8;
need = stp->allocated_literals * sizeof(Literal);
- stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
need);
} else if (stp->allocated_literals <= stp->num_literals) {
Uint need;
stp->allocated_literals *= 2;
need = stp->allocated_literals * sizeof(Literal);
- stp->literals = (Literal *) erts_realloc(ERTS_ALC_T_LOADER_TMP,
+ stp->literals = (Literal *) erts_realloc(ERTS_ALC_T_PREPARED_CODE,
(void *) stp->literals,
need);
}
@@ -4980,7 +5021,7 @@ new_literal(LoaderState* stp, Eterm** hpp, Uint heap_size)
lit = stp->literals + stp->num_literals;
lit->offset = 0;
lit->heap_size = heap_size;
- lit->heap = erts_alloc(ERTS_ALC_T_LOADER_TMP, heap_size*sizeof(Eterm));
+ lit->heap = erts_alloc(ERTS_ALC_T_PREPARED_CODE, heap_size*sizeof(Eterm));
lit->term = make_boxed(lit->heap);
lit->off_heap.first = 0;
lit->off_heap.overhead = 0;
@@ -4999,7 +5040,7 @@ erts_module_info_0(Process* p, Eterm module)
return THE_NON_VALUE;
}
- if (erts_get_module(module) == NULL) {
+ if (erts_get_module(module, erts_active_code_ix()) == NULL) {
return THE_NON_VALUE;
}
@@ -5054,32 +5095,43 @@ functions_in_module(Process* p, /* Process whose heap to use. */
BeamInstr* code;
int i;
Uint num_functions;
+ Uint need;
Eterm* hp;
+ Eterm* hp_end;
Eterm result = NIL;
if (is_not_atom(mod)) {
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
num_functions = code[MI_NUM_FUNCTIONS];
- hp = HAlloc(p, 5*num_functions);
+ need = 5*num_functions;
+ hp = HAlloc(p, need);
+ hp_end = hp + need;
for (i = num_functions-1; i >= 0 ; i--) {
BeamInstr* func_info = (BeamInstr *) code[MI_FUNCTIONS+i];
Eterm name = (Eterm) func_info[3];
int arity = (int) func_info[4];
Eterm tuple;
- ASSERT(is_atom(name));
- tuple = TUPLE2(hp, name, make_small(arity));
- hp += 3;
- result = CONS(hp, tuple, result);
- hp += 2;
+ /*
+ * If the function name is [], this entry is a stub for
+ * a BIF that should be ignored.
+ */
+ ASSERT(is_atom(name) || is_nil(name));
+ if (is_atom(name)) {
+ tuple = TUPLE2(hp, name, make_small(arity));
+ hp += 3;
+ result = CONS(hp, tuple, result);
+ hp += 2;
+ }
}
+ HRelease(p, hp_end, hp);
return result;
}
@@ -5106,12 +5158,12 @@ native_addresses(Process* p, Eterm mod)
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
num_functions = code[MI_NUM_FUNCTIONS];
need = (6+BIG_UINT_HEAP_SIZE)*num_functions;
hp = HAlloc(p, need);
@@ -5122,9 +5174,11 @@ native_addresses(Process* p, Eterm mod)
int arity = (int) func_info[4];
Eterm tuple;
- ASSERT(is_atom(name));
+ ASSERT(is_atom(name) || is_nil(name)); /* [] if BIF stub */
if (func_info[1] != 0) {
- Eterm addr = erts_bld_uint(&hp, NULL, func_info[1]);
+ Eterm addr;
+ ASSERT(is_atom(name));
+ addr = erts_bld_uint(&hp, NULL, func_info[1]);
tuple = erts_bld_tuple(&hp, NULL, 3, name, make_small(arity), addr);
result = erts_bld_cons(&hp, NULL, tuple, result);
}
@@ -5149,18 +5203,20 @@ exported_from_module(Process* p, /* Process whose heap to use. */
Eterm* hp = NULL;
Eterm* hend = NULL;
Eterm result = NIL;
+ ErtsCodeIndex code_ix;
if (is_not_atom(mod)) {
return THE_NON_VALUE;
}
- for (i = 0; i < export_list_size(); i++) {
- Export* ep = export_list(i);
+ code_ix = erts_active_code_ix();
+ for (i = 0; i < export_list_size(code_ix); i++) {
+ Export* ep = export_list(i,code_ix);
if (ep->code[0] == mod) {
Eterm tuple;
- if (ep->address == ep->code+3 &&
+ if (ep->addressv[code_ix] == ep->code+3 &&
ep->code[3] == (BeamInstr) em_call_error_handler) {
/* There is a call to the function, but it does not exist. */
continue;
@@ -5204,11 +5260,11 @@ attributes_for_module(Process* p, /* Process whose heap to use. */
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
ext = (byte *) code[MI_ATTR_PTR];
if (ext != NULL) {
hp = HAlloc(p, code[MI_ATTR_SIZE_ON_HEAP]);
@@ -5244,11 +5300,11 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
ext = (byte *) code[MI_COMPILE_PTR];
if (ext != NULL) {
hp = HAlloc(p, code[MI_COMPILE_SIZE_ON_HEAP]);
@@ -5263,113 +5319,6 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */
}
/*
- * Find a function from the given pc and fill information in
- * the FunctionInfo struct. If the full_info is non-zero, fill
- * in all available information (including location in the
- * source code). If no function is found, the 'current' field
- * will be set to NULL.
- */
-
-void
-erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info)
-{
- Range* low = modules;
- Range* high = low + num_loaded_modules;
- Range* mid = mid_module;
-
- fi->current = NULL;
- fi->needed = 5;
- fi->loc = LINE_INVALID_LOCATION;
- while (low < high) {
- if (pc < mid->start) {
- high = mid;
- } else if (pc > mid->end) {
- low = mid + 1;
- } else {
- BeamInstr** low1 = (BeamInstr **) (mid->start + MI_FUNCTIONS);
- BeamInstr** high1 = low1 + mid->start[MI_NUM_FUNCTIONS];
- BeamInstr** mid1;
-
- while (low1 < high1) {
- mid1 = low1 + (high1-low1) / 2;
- if (pc < mid1[0]) {
- high1 = mid1;
- } else if (pc < mid1[1]) {
- mid_module = mid;
- fi->current = mid1[0]+2;
- if (full_info) {
- BeamInstr** fp = (BeamInstr **) (mid->start +
- MI_FUNCTIONS);
- int idx = mid1 - fp;
- lookup_loc(fi, pc, mid->start, idx);
- }
- return;
- } else {
- low1 = mid1 + 1;
- }
- }
- return;
- }
- mid = low + (high-low) / 2;
- }
-}
-
-static void
-lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamInstr* modp, int idx)
-{
- Eterm* line = (Eterm *) modp[MI_LINE_TABLE];
- Eterm* low;
- Eterm* high;
- Eterm* mid;
- Eterm pc;
-
- if (line == 0) {
- return;
- }
-
- pc = (Eterm) (BeamInstr) orig_pc;
- fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR];
- low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx];
- high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1];
- while (high > low) {
- mid = low + (high-low) / 2;
- if (pc < mid[0]) {
- high = mid;
- } else if (pc < mid[1]) {
- int file;
- int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB];
-
- if (line[MI_LINE_LOC_SIZE] == 2) {
- Uint16* loc_table =
- (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB];
- fi->loc = loc_table[index];
- } else {
- Uint32* loc_table =
- (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB];
- ASSERT(line[MI_LINE_LOC_SIZE] == 4);
- fi->loc = loc_table[index];
- }
- if (fi->loc == LINE_INVALID_LOCATION) {
- return;
- }
- fi->needed += 3+2+3+2;
- file = LOC_FILE(fi->loc);
- if (file == 0) {
- /* Special case: Module name with ".erl" appended */
- Atom* mod_atom = atom_tab(atom_val(fi->current[0]));
- fi->needed += 2*(mod_atom->len+4);
- } else {
- Atom* ap = atom_tab(atom_val((fi->fname_ptr)[file-1]));
- fi->needed += 2*ap->len;
- }
- return;
- } else {
- low = mid + 1;
- }
- }
-}
-
-/*
* Build a single {M,F,A,Loction} item to be part of
* a stack trace.
*/
@@ -5449,6 +5398,7 @@ code_get_chunk_2(BIF_ALIST_2)
Process* p = BIF_P;
Eterm Bin = BIF_ARG_1;
Eterm Chunk = BIF_ARG_2;
+ Binary* magic = 0;
LoaderState* stp;
Uint chunk = 0;
ErlSubBin* sb;
@@ -5461,12 +5411,13 @@ code_get_chunk_2(BIF_ALIST_2)
Eterm real_bin;
byte* temp_alloc = NULL;
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
+ stp = ERTS_MAGIC_BIN_DATA(magic);
if ((start = erts_get_aligned_binary_bytes(Bin, &temp_alloc)) == NULL) {
error:
erts_free_aligned_binary_bytes(temp_alloc);
- if (stp) {
- free_state(stp);
+ if (magic) {
+ free_loader_state(magic);
}
BIF_ERROR(p, BADARG);
}
@@ -5511,7 +5462,7 @@ code_get_chunk_2(BIF_ALIST_2)
done:
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
return res;
}
@@ -5524,14 +5475,16 @@ code_module_md5_1(BIF_ALIST_1)
{
Process* p = BIF_P;
Eterm Bin = BIF_ARG_1;
+ Binary* magic;
LoaderState* stp;
byte* bytes;
byte* temp_alloc = NULL;
Eterm res;
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
+ stp = ERTS_MAGIC_BIN_DATA(magic);
if ((bytes = erts_get_aligned_binary_bytes(Bin, &temp_alloc)) == NULL) {
- free_state(stp);
+ free_loader_state(magic);
BIF_ERROR(p, BADARG);
}
stp->module = THE_NON_VALUE; /* Suppress diagnostiscs */
@@ -5545,7 +5498,7 @@ code_module_md5_1(BIF_ALIST_1)
done:
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
return res;
}
@@ -5574,7 +5527,8 @@ stub_copy_info(LoaderState* stp,
int chunk, /* Chunk: ATTR_CHUNK or COMPILE_CHUNK */
byte* info, /* Where to store info. */
BeamInstr* ptr_word, /* Where to store pointer into info. */
- BeamInstr* size_word) /* Where to store size of info. */
+ BeamInstr* size_word, /* Where to store size into info. */
+ BeamInstr* size_on_heap_word) /* Where to store size on heap. */
{
Sint decoded_size;
Uint size = stp->chunks[chunk].size;
@@ -5585,7 +5539,8 @@ stub_copy_info(LoaderState* stp,
if (decoded_size < 0) {
return 0;
}
- *size_word = decoded_size;
+ *size_word = (BeamInstr) size;
+ *size_on_heap_word = decoded_size;
}
return info + size;
}
@@ -5601,7 +5556,7 @@ stub_read_export_table(LoaderState* stp)
stp->num_exps, stp->num_functions);
}
stp->export
- = (ExportEntry *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ = (ExportEntry *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_exps * sizeof(ExportEntry));
for (i = 0; i < stp->num_exps; i++) {
@@ -5627,20 +5582,29 @@ stub_final_touch(LoaderState* stp, BeamInstr* fp)
{
int i;
int n = stp->num_exps;
+ Eterm mod = fp[2];
Eterm function = fp[3];
int arity = fp[4];
#ifdef HIPE
Lambda* lp;
#endif
+ if (is_bif(mod, function, arity)) {
+ fp[1] = 0;
+ fp[2] = 0;
+ fp[3] = 0;
+ fp[4] = 0;
+ return;
+ }
+
/*
* Test if the function should be exported.
*/
for (i = 0; i < n; i++) {
if (stp->export[i].function == function && stp->export[i].arity == arity) {
- Export* ep = erts_export_put(fp[2], function, arity);
- ep->address = fp+5;
+ Export* ep = erts_export_put(mod, function, arity);
+ ep->addressv[erts_staging_code_ix()] = fp+5;
return;
}
}
@@ -5819,6 +5783,7 @@ patch_funentries(Eterm Patchlist)
Eterm
erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
{
+ Binary* magic;
LoaderState* stp;
BeamInstr Funcs;
BeamInstr Patchlist;
@@ -5840,7 +5805,8 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
* Must initialize stp->lambdas here because the error handling code
* at label 'error' uses it.
*/
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
+ stp = ERTS_MAGIC_BIN_DATA(magic);
if (is_not_atom(Mod)) {
goto error;
@@ -5920,7 +5886,6 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
code[MI_COMPILE_PTR] = 0;
code[MI_COMPILE_SIZE] = 0;
code[MI_COMPILE_SIZE_ON_HEAP] = 0;
- code[MI_NUM_BREAKPOINTS] = 0;
code[MI_LITERALS_START] = 0;
code[MI_LITERALS_END] = 0;
code[MI_LITERALS_OFF_HEAP] = 0;
@@ -5997,12 +5962,16 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
info = (byte *) fp;
info = stub_copy_info(stp, ATTR_CHUNK, info,
- code+MI_ATTR_PTR, code+MI_ATTR_SIZE_ON_HEAP);
+ code+MI_ATTR_PTR,
+ code+MI_ATTR_SIZE,
+ code+MI_ATTR_SIZE_ON_HEAP);
if (info == NULL) {
goto error;
}
info = stub_copy_info(stp, COMPILE_CHUNK, info,
- code+MI_COMPILE_PTR, code+MI_COMPILE_SIZE_ON_HEAP);
+ code+MI_COMPILE_PTR,
+ code+MI_COMPILE_SIZE,
+ code+MI_COMPILE_SIZE_ON_HEAP);
if (info == NULL) {
goto error;
}
@@ -6028,13 +5997,13 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
if (patch_funentries(Patchlist)) {
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
return Mod;
}
error:
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
BIF_ERROR(p, BADARG);
}
@@ -6051,3 +6020,4 @@ static int safe_mul(UWord a, UWord b, UWord* resp)
return (res / b) == a;
}
}
+
diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h
index 997ba197db..1048f258a5 100644
--- a/erts/emulator/beam/beam_load.h
+++ b/erts/emulator/beam/beam_load.h
@@ -49,11 +49,6 @@ extern void** beam_ops;
extern BeamInstr beam_debug_apply[];
extern BeamInstr* em_call_error_handler;
extern BeamInstr* em_apply_bif;
-extern BeamInstr* em_call_traced_function;
-typedef struct {
- BeamInstr* start; /* Pointer to start of module. */
- BeamInstr* end; /* Points one word beyond last function in module. */
-} Range;
/*
* The following variables keep a sorted list of address ranges for
@@ -61,11 +56,6 @@ typedef struct {
* instruction pointer.
*/
-extern Range* modules;
-extern int num_loaded_modules;
-extern int allocated_modules;
-extern Range* mid_module;
-
/* Total code size in bytes */
extern Uint erts_total_code_size;
/*
@@ -94,27 +84,22 @@ extern Uint erts_total_code_size;
#define MI_COMPILE_SIZE_ON_HEAP 6
/*
- * Number of breakpoints in module is stored in this word
- */
-#define MI_NUM_BREAKPOINTS 7
-
-/*
* Literal area (constant pool).
*/
-#define MI_LITERALS_START 8
-#define MI_LITERALS_END 9
-#define MI_LITERALS_OFF_HEAP 10
+#define MI_LITERALS_START 7
+#define MI_LITERALS_END 8
+#define MI_LITERALS_OFF_HEAP 9
/*
* Pointer to the on_load function (or NULL if none).
*/
-#define MI_ON_LOAD_FUNCTION_PTR 11
+#define MI_ON_LOAD_FUNCTION_PTR 10
/*
* Pointer to the line table (or NULL if none).
*/
-#define MI_LINE_TABLE 12
+#define MI_LINE_TABLE 11
/*
* Start of function pointer table. This table contains pointers to
@@ -125,5 +110,27 @@ extern Uint erts_total_code_size;
* this table.
*/
-#define MI_FUNCTIONS 13
+#define MI_FUNCTIONS 12
+
+/*
+ * Layout of the line table.
+ */
+
+#define MI_LINE_FNAME_PTR 0
+#define MI_LINE_LOC_TAB 1
+#define MI_LINE_LOC_SIZE 2
+#define MI_LINE_FUNC_TAB 3
+
+#define LINE_INVALID_LOCATION (0)
+
+/*
+ * Macros for manipulating locations.
+ */
+
+#define IS_VALID_LOCATION(File, Line) \
+ ((unsigned) (File) < 255 && (unsigned) (Line) < ((1 << 24) - 1))
+#define MAKE_LOCATION(File, Line) (((File) << 24) | (Line))
+#define LOC_FILE(Loc) ((Loc) >> 24)
+#define LOC_LINE(Loc) ((Loc) & ((1 << 24)-1))
+
#endif /* _BEAM_LOAD_H */
diff --git a/erts/emulator/beam/beam_ranges.c b/erts/emulator/beam/beam_ranges.c
new file mode 100644
index 0000000000..0f2d5d0c2a
--- /dev/null
+++ b/erts/emulator/beam/beam_ranges.c
@@ -0,0 +1,349 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "sys.h"
+#include "erl_vm.h"
+#include "global.h"
+#include "beam_load.h"
+
+typedef struct {
+ BeamInstr* start; /* Pointer to start of module. */
+ erts_smp_atomic_t end; /* (BeamInstr*) Points one word beyond last function in module. */
+} Range;
+
+/* Range 'end' needs to be atomic as we purge module
+ by setting end=start in active code_ix */
+#define RANGE_END(R) ((BeamInstr*)erts_smp_atomic_read_nob(&(R)->end))
+
+static Range* find_range(BeamInstr* pc);
+static void lookup_loc(FunctionInfo* fi, BeamInstr* pc,
+ BeamInstr* modp, int idx);
+
+/*
+ * The following variables keep a sorted list of address ranges for
+ * each module. It allows us to quickly find a function given an
+ * instruction pointer.
+ */
+struct ranges {
+ Range* modules; /* Sorted lists of module addresses. */
+ Sint n; /* Number of range entries. */
+ Sint allocated; /* Number of allocated entries. */
+ erts_smp_atomic_t mid; /* Cached search start point */
+};
+static struct ranges r[ERTS_NUM_CODE_IX];
+static erts_smp_atomic_t mem_used;
+
+#ifdef HARD_DEBUG
+static void check_consistency(struct ranges* p)
+{
+ int i;
+
+ ASSERT(p->n <= p->allocated);
+ ASSERT((Uint)(p->mid - p->modules) < p->n ||
+ (p->mid == p->modules && p->n == 0));
+ for (i = 0; i < p->n; i++) {
+ ASSERT(p->modules[i].start <= RANGE_END(&p->modules[i]));
+ ASSERT(!i || RANGE_END(&p->modules[i-1]) < p->modules[i].start);
+ }
+}
+# define CHECK(r) check_consistency(r)
+#else
+# define CHECK(r)
+#endif /* HARD_DEBUG */
+
+
+void
+erts_init_ranges(void)
+{
+ Sint i;
+
+ erts_smp_atomic_init_nob(&mem_used, 0);
+ for (i = 0; i < ERTS_NUM_CODE_IX; i++) {
+ r[i].modules = 0;
+ r[i].n = 0;
+ r[i].allocated = 0;
+ erts_smp_atomic_init_nob(&r[i].mid, 0);
+ }
+}
+
+void
+erts_start_staging_ranges(void)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+
+ if (r[dst].modules) {
+ erts_smp_atomic_add_nob(&mem_used, -r[dst].allocated);
+ erts_free(ERTS_ALC_T_MODULE_REFS, r[dst].modules);
+ r[dst].modules = NULL;
+ }
+}
+
+void
+erts_end_staging_ranges(int commit)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+
+ if (commit && r[dst].modules == NULL) {
+ Sint i;
+ Sint n;
+
+ /* No modules added, just clone src and remove purged code. */
+ ErtsCodeIndex src = erts_active_code_ix();
+
+ erts_smp_atomic_add_nob(&mem_used, r[src].n);
+ r[dst].modules = erts_alloc(ERTS_ALC_T_MODULE_REFS,
+ r[src].n * sizeof(Range));
+ r[dst].allocated = r[src].n;
+ n = 0;
+ for (i = 0; i < r[src].n; i++) {
+ Range* rp = r[src].modules+i;
+ if (rp->start < RANGE_END(rp)) {
+ /* Only insert a module that has not been purged. */
+ r[dst].modules[n] = *rp;
+ n++;
+ }
+ }
+ r[dst].n = n;
+ erts_smp_atomic_set_nob(&r[dst].mid,
+ (erts_aint_t) (r[dst].modules + n / 2));
+ }
+}
+
+void
+erts_update_ranges(BeamInstr* code, Uint size)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+ ErtsCodeIndex src = erts_active_code_ix();
+ Sint i;
+ Sint n;
+ Sint need;
+
+ if (src == dst) {
+ ASSERT(!erts_initialized);
+
+ /*
+ * During start-up of system, the indices are the same.
+ * Handle this by faking a source area.
+ */
+ src = (src+1) % ERTS_NUM_CODE_IX;
+ if (r[src].modules) {
+ erts_smp_atomic_add_nob(&mem_used, -r[src].allocated);
+ erts_free(ERTS_ALC_T_MODULE_REFS, r[src].modules);
+ }
+ r[src] = r[dst];
+ r[dst].modules = 0;
+ }
+
+ CHECK(&r[src]);
+
+ ASSERT(r[dst].modules == NULL);
+ need = r[dst].allocated = r[src].n + 1;
+ erts_smp_atomic_add_nob(&mem_used, need);
+ r[dst].modules = (Range *) erts_alloc(ERTS_ALC_T_MODULE_REFS,
+ need * sizeof(Range));
+ n = 0;
+ for (i = 0; i < r[src].n; i++) {
+ Range* rp = r[src].modules+i;
+ if (code < rp->start) {
+ r[dst].modules[n].start = code;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(((byte *)code) + size));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < code);
+ n++;
+ break;
+ }
+ if (rp->start < RANGE_END(rp)) {
+ /* Only insert a module that has not been purged. */
+ r[dst].modules[n].start = rp->start;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(RANGE_END(rp)));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < rp->start);
+ n++;
+ }
+ }
+
+ while (i < r[src].n) {
+ Range* rp = r[src].modules+i;
+ if (rp->start < RANGE_END(rp)) {
+ /* Only insert a module that has not been purged. */
+ r[dst].modules[n].start = rp->start;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(RANGE_END(rp)));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < rp->start);
+ n++;
+ }
+ i++;
+ }
+
+ if (n == 0 || code > r[dst].modules[n-1].start) {
+ r[dst].modules[n].start = code;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(((byte *)code) + size));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < code);
+ n++;
+ }
+
+ ASSERT(n <= r[src].n+1);
+ r[dst].n = n;
+ erts_smp_atomic_set_nob(&r[dst].mid,
+ (erts_aint_t) (r[dst].modules + n / 2));
+
+ CHECK(&r[dst]);
+ CHECK(&r[src]);
+}
+
+void
+erts_remove_from_ranges(BeamInstr* code)
+{
+ Range* rp = find_range(code);
+ erts_smp_atomic_set_nob(&rp->end, (erts_aint_t)rp->start);
+}
+
+UWord
+erts_ranges_sz(void)
+{
+ return erts_smp_atomic_read_nob(&mem_used) * sizeof(Range);
+}
+
+/*
+ * Find a function from the given pc and fill information in
+ * the FunctionInfo struct. If the full_info is non-zero, fill
+ * in all available information (including location in the
+ * source code). If no function is found, the 'current' field
+ * will be set to NULL.
+ */
+
+void
+erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info)
+{
+ BeamInstr** low;
+ BeamInstr** high;
+ BeamInstr** mid;
+ Range* rp;
+
+ fi->current = NULL;
+ fi->needed = 5;
+ fi->loc = LINE_INVALID_LOCATION;
+ rp = find_range(pc);
+ if (rp == 0) {
+ return;
+ }
+
+ low = (BeamInstr **) (rp->start + MI_FUNCTIONS);
+ high = low + rp->start[MI_NUM_FUNCTIONS];
+ while (low < high) {
+ mid = low + (high-low) / 2;
+ if (pc < mid[0]) {
+ high = mid;
+ } else if (pc < mid[1]) {
+ fi->current = mid[0]+2;
+ if (full_info) {
+ BeamInstr** fp = (BeamInstr **) (rp->start +
+ MI_FUNCTIONS);
+ int idx = mid - fp;
+ lookup_loc(fi, pc, rp->start, idx);
+ }
+ return;
+ } else {
+ low = mid + 1;
+ }
+ }
+}
+
+static Range*
+find_range(BeamInstr* pc)
+{
+ ErtsCodeIndex active = erts_active_code_ix();
+ Range* low = r[active].modules;
+ Range* high = low + r[active].n;
+ Range* mid = (Range *) erts_smp_atomic_read_nob(&r[active].mid);
+
+ CHECK(&r[active]);
+ while (low < high) {
+ if (pc < mid->start) {
+ high = mid;
+ } else if (pc > RANGE_END(mid)) {
+ low = mid + 1;
+ } else {
+ erts_smp_atomic_set_nob(&r[active].mid, (erts_aint_t) mid);
+ return mid;
+ }
+ mid = low + (high-low) / 2;
+ }
+ return 0;
+}
+
+static void
+lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamInstr* modp, int idx)
+{
+ Eterm* line = (Eterm *) modp[MI_LINE_TABLE];
+ Eterm* low;
+ Eterm* high;
+ Eterm* mid;
+ Eterm pc;
+
+ if (line == 0) {
+ return;
+ }
+
+ pc = (Eterm) (BeamInstr) orig_pc;
+ fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR];
+ low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx];
+ high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1];
+ while (high > low) {
+ mid = low + (high-low) / 2;
+ if (pc < mid[0]) {
+ high = mid;
+ } else if (pc < mid[1]) {
+ int file;
+ int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB];
+
+ if (line[MI_LINE_LOC_SIZE] == 2) {
+ Uint16* loc_table =
+ (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB];
+ fi->loc = loc_table[index];
+ } else {
+ Uint32* loc_table =
+ (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB];
+ ASSERT(line[MI_LINE_LOC_SIZE] == 4);
+ fi->loc = loc_table[index];
+ }
+ if (fi->loc == LINE_INVALID_LOCATION) {
+ return;
+ }
+ fi->needed += 3+2+3+2;
+ file = LOC_FILE(fi->loc);
+ if (file == 0) {
+ /* Special case: Module name with ".erl" appended */
+ Atom* mod_atom = atom_tab(atom_val(fi->current[0]));
+ fi->needed += 2*(mod_atom->len+4);
+ } else {
+ Atom* ap = atom_tab(atom_val((fi->fname_ptr)[file-1]));
+ fi->needed += 2*ap->len;
+ }
+ return;
+ } else {
+ low = mid + 1;
+ }
+ }
+}
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index fc00b42454..97c8114437 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -37,10 +37,13 @@
#include "erl_db_util.h"
#include "register.h"
#include "erl_thr_progress.h"
+#define ERTS_PTAB_WANT_BIF_IMPL__
+#include "erl_ptab.h"
static Export* flush_monitor_message_trap = NULL;
static Export* set_cpu_topology_trap = NULL;
static Export* await_proc_exit_trap = NULL;
+static Export* await_port_send_result_trap = NULL;
Export* erts_format_cpu_topology_trap = NULL;
static Export *await_sched_wall_time_mod_trap;
@@ -83,8 +86,10 @@ static int insert_internal_link(Process* p, Eterm rpid)
ASSERT(is_internal_pid(rpid));
#ifdef ERTS_SMP
- if (IS_TRACED(p) && (p->trace_flags & (F_TRACE_SOL|F_TRACE_SOL1)))
+ if (IS_TRACED(p)
+ && (ERTS_TRACE_FLAGS(p) & (F_TRACE_SOL|F_TRACE_SOL1))) {
rp_locks = ERTS_PROC_LOCKS_ALL;
+ }
erts_smp_proc_lock(p, ERTS_PROC_LOCK_LINK);
#endif
@@ -100,27 +105,27 @@ static int insert_internal_link(Process* p, Eterm rpid)
}
if (p != rp) {
- erts_add_link(&(p->nlinks), LINK_PID, rp->id);
- erts_add_link(&(rp->nlinks), LINK_PID, p->id);
+ erts_add_link(&ERTS_P_LINKS(p), LINK_PID, rp->common.id);
+ erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, p->common.id);
- ASSERT(is_nil(p->tracer_proc)
- || is_internal_pid(p->tracer_proc)
- || is_internal_port(p->tracer_proc));
+ ASSERT(is_nil(ERTS_TRACER_PROC(p))
+ || is_internal_pid(ERTS_TRACER_PROC(p))
+ || is_internal_port(ERTS_TRACER_PROC(p)));
if (IS_TRACED(p)) {
- if (p->trace_flags & (F_TRACE_SOL|F_TRACE_SOL1)) {
- rp->trace_flags |= (p->trace_flags & TRACEE_FLAGS);
- rp->tracer_proc = p->tracer_proc; /* maybe steal */
+ if (ERTS_TRACE_FLAGS(p) & (F_TRACE_SOL|F_TRACE_SOL1)) {
+ ERTS_TRACE_FLAGS(rp) |= (ERTS_TRACE_FLAGS(p) & TRACEE_FLAGS);
+ ERTS_TRACER_PROC(rp) = ERTS_TRACER_PROC(p); /* maybe steal */
- if (p->trace_flags & F_TRACE_SOL1) { /* maybe override */
- rp->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
- p->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
+ if (ERTS_TRACE_FLAGS(p) & F_TRACE_SOL1) { /* maybe override */
+ ERTS_TRACE_FLAGS(rp) &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
+ ERTS_TRACE_FLAGS(p) &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
}
}
}
}
if (IS_TRACED_FL(rp, F_TRACE_PROCS))
- trace_proc(p, rp, am_getting_linked, p->id);
+ trace_proc(p, rp, am_getting_linked, p->common.id);
if (p == rp)
erts_smp_proc_unlock(p, rp_locks & ~ERTS_PROC_LOCK_MAIN);
@@ -144,10 +149,6 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
/* check that the pid or port which is our argument is OK */
if (is_internal_pid(BIF_ARG_1)) {
- if (internal_pid_index(BIF_ARG_1) >= erts_max_processes) {
- BIF_ERROR(BIF_P, BADARG);
- }
-
if (insert_internal_link(BIF_P, BIF_ARG_1)) {
BIF_RET(am_true);
}
@@ -157,19 +158,37 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
}
if (is_internal_port(BIF_ARG_1)) {
- Port *pt = erts_id2port(BIF_ARG_1, BIF_P, ERTS_PROC_LOCK_MAIN);
- if (!pt) {
+ int send_link_signal = 0;
+ Port *prt = erts_port_lookup(BIF_ARG_1, ERTS_PORT_SFLGS_INVALID_LOOKUP);
+ if (!prt) {
goto res_no_proc;
}
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
- if (erts_add_link(&(BIF_P->nlinks), LINK_PID, BIF_ARG_1) >= 0)
- erts_add_link(&(pt->nlinks), LINK_PID, BIF_P->id);
+ if (erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, BIF_ARG_1) >= 0)
+ send_link_signal = 1;
/* else: already linked */
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK);
- erts_smp_port_unlock(pt);
+
+ if (send_link_signal) {
+ Eterm ref;
+ Eterm *refp = erts_port_synchronous_ops ? &ref : NULL;
+
+ switch (erts_port_link(BIF_P, prt, BIF_P->common.id, refp)) {
+ case ERTS_PORT_OP_DROPPED:
+ case ERTS_PORT_OP_BADARG:
+ goto res_no_proc;
+ case ERTS_PORT_OP_SCHEDULED:
+ if (refp) {
+ ASSERT(is_internal_ref(ref));
+ BIF_TRAP3(await_port_send_result_trap, BIF_P, ref, am_true, am_true);
+ }
+ default:
+ break;
+ }
+ }
BIF_RET(am_true);
}
else if (is_external_port(BIF_ARG_1)
@@ -182,7 +201,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
/* We may earn time by checking first that we're not linked already */
- if (erts_lookup_link(BIF_P->nlinks, BIF_ARG_1) != NULL) {
+ if (erts_lookup_link(ERTS_P_LINKS(BIF_P), BIF_ARG_1) != NULL) {
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK);
BIF_RET(am_true);
}
@@ -209,10 +228,10 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
erts_smp_de_links_lock(dep);
- erts_add_link(&(BIF_P->nlinks), LINK_PID, BIF_ARG_1);
+ erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, BIF_ARG_1);
lnk = erts_add_or_lookup_link(&(dep->nlinks),
LINK_PID,
- BIF_P->id);
+ BIF_P->common.id);
ASSERT(lnk != NULL);
erts_add_link(&ERTS_LINK_ROOT(lnk), LINK_PID, BIF_ARG_1);
@@ -220,7 +239,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
erts_smp_de_runlock(dep);
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK);
- code = erts_dsig_send_link(&dsd, BIF_P->id, BIF_ARG_1);
+ code = erts_dsig_send_link(&dsd, BIF_P->common.id, BIF_ARG_1);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
BIF_RET(am_true);
@@ -233,15 +252,17 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
BIF_ERROR(BIF_P, BADARG);
- res_no_proc:
- if (BIF_P->flags & F_TRAPEXIT) {
- ErtsProcLocks locks = ERTS_PROC_LOCK_MAIN;
- erts_deliver_exit_message(BIF_ARG_1, BIF_P, &locks, am_noproc, NIL);
- erts_smp_proc_unlock(BIF_P, ~ERTS_PROC_LOCK_MAIN & locks);
- BIF_RET(am_true);
+res_no_proc: {
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&BIF_P->state);
+ if (state & ERTS_PSFLG_TRAP_EXIT) {
+ ErtsProcLocks locks = ERTS_PROC_LOCK_MAIN;
+ erts_deliver_exit_message(BIF_ARG_1, BIF_P, &locks, am_noproc, NIL);
+ erts_smp_proc_unlock(BIF_P, ~ERTS_PROC_LOCK_MAIN & locks);
+ BIF_RET(am_true);
+ }
+ else
+ BIF_ERROR(BIF_P, EXC_NOPROC);
}
- else
- BIF_ERROR(BIF_P, EXC_NOPROC);
}
#define ERTS_DEMONITOR_FALSE 2
@@ -287,7 +308,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to)
if (dmon)
erts_destroy_monitor(dmon);
}
- mon = erts_remove_monitor(&c_p->monitors, ref);
+ mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref);
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_LINK);
res = ERTS_DEMONITOR_TRUE;
@@ -296,7 +317,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to)
case ERTS_DSIG_PREP_CONNECTED:
erts_smp_de_links_lock(dep);
- mon = erts_remove_monitor(&c_p->monitors, ref);
+ mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref);
dmon = erts_remove_monitor(&dep->monitors, ref);
erts_smp_de_links_unlock(dep);
erts_smp_de_runlock(dep);
@@ -323,7 +344,7 @@ remote_demonitor(Process *c_p, DistEntry *dep, Eterm ref, Eterm to)
* the atom is stored there. Yield if necessary.
*/
code = erts_dsig_send_demonitor(&dsd,
- c_p->id,
+ c_p->common.id,
(mon->name != NIL
? mon->name
: mon->pid),
@@ -385,7 +406,7 @@ static int demonitor(Process *c_p, Eterm ref)
goto done; /* Cannot be this monitor's ref */
}
- mon = erts_lookup_monitor(c_p->monitors, ref);
+ mon = erts_lookup_monitor(ERTS_P_MONITORS(c_p), ref);
if (!mon) {
res = ERTS_DEMONITOR_FALSE;
goto done;
@@ -424,7 +445,7 @@ static int demonitor(Process *c_p, Eterm ref)
to,
ERTS_PROC_LOCK_LINK,
ERTS_P2P_FLG_ALLOW_OTHER_X);
- mon = erts_remove_monitor(&c_p->monitors, ref);
+ mon = erts_remove_monitor(&ERTS_P_MONITORS(c_p), ref);
#ifndef ERTS_SMP
ASSERT(mon);
#else
@@ -438,7 +459,7 @@ static int demonitor(Process *c_p, Eterm ref)
}
if (rp) {
ErtsMonitor *rmon;
- rmon = erts_remove_monitor(&(rp->monitors), ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref);
if (rp != c_p)
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
if (rmon != NULL)
@@ -580,7 +601,7 @@ local_pid_monitor(Process *p, Eterm target)
mon_ref = erts_make_ref(p);
ERTS_BIF_PREP_RET(ret, mon_ref);
- if (target == p->id) {
+ if (target == p->common.id) {
return ret;
}
@@ -597,8 +618,8 @@ local_pid_monitor(Process *p, Eterm target)
else {
ASSERT(rp != p);
- erts_add_monitor(&(p->monitors), MON_ORIGIN, mon_ref, target, NIL);
- erts_add_monitor(&(rp->monitors), MON_TARGET, mon_ref, p->id, NIL);
+ erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, target, NIL);
+ erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, mon_ref, p->common.id, NIL);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
}
@@ -633,9 +654,9 @@ local_name_monitor(Process *p, Eterm target_name)
UnUseTmpHeap(3,p);
}
else if (rp != p) {
- erts_add_monitor(&(p->monitors), MON_ORIGIN, mon_ref, rp->id,
+ erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, rp->common.id,
target_name);
- erts_add_monitor(&(rp->monitors), MON_TARGET, mon_ref, p->id,
+ erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, mon_ref, p->common.id,
target_name);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
}
@@ -687,16 +708,16 @@ remote_monitor(Process *p, Eterm bifarg1, Eterm bifarg2,
erts_smp_de_links_lock(dep);
- erts_add_monitor(&(p->monitors), MON_ORIGIN, mon_ref, p_trgt,
+ erts_add_monitor(&ERTS_P_MONITORS(p), MON_ORIGIN, mon_ref, p_trgt,
p_name);
- erts_add_monitor(&(dep->monitors), MON_TARGET, mon_ref, p->id,
+ erts_add_monitor(&(dep->monitors), MON_TARGET, mon_ref, p->common.id,
d_name);
erts_smp_de_links_unlock(dep);
erts_smp_de_runlock(dep);
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK);
- code = erts_dsig_send_monitor(&dsd, p->id, target, mon_ref);
+ code = erts_dsig_send_monitor(&dsd, p->common.id, target, mon_ref);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_PREP_YIELD_RETURN(ret, p, mon_ref);
else
@@ -939,36 +960,39 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
}
if (is_internal_port(BIF_ARG_1)) {
- Port *pt = erts_id2port_sflgs(BIF_ARG_1,
- BIF_P,
- ERTS_PROC_LOCK_MAIN,
- ERTS_PORT_SFLGS_DEAD);
-
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS);
#ifdef ERTS_SMP
- if (ERTS_PROC_PENDING_EXIT(BIF_P)) {
- if (pt)
- erts_smp_port_unlock(pt);
+ if (ERTS_PROC_PENDING_EXIT(BIF_P))
goto handle_pending_exit;
- }
#endif
- l = erts_remove_link(&BIF_P->nlinks, BIF_ARG_1);
-
- ASSERT(pt || !l);
-
- if (pt) {
- rl = erts_remove_link(&pt->nlinks, BIF_P->id);
- erts_smp_port_unlock(pt);
- if (rl)
- erts_destroy_link(rl);
- }
+ l = erts_remove_link(&ERTS_P_LINKS(BIF_P), BIF_ARG_1);
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS);
- if (l)
+ if (l) {
+ Port *prt;
+
erts_destroy_link(l);
+ /* Send unlink signal */
+ prt = erts_port_lookup(BIF_ARG_1, ERTS_PORT_SFLGS_DEAD);
+ if (prt) {
+ ErtsPortOpResult res;
+ Eterm ref;
+ Eterm *refp = erts_port_synchronous_ops ? &ref : NULL;
+#ifdef DEBUG
+ ref = NIL;
+#endif
+ res = erts_port_unlink(BIF_P, prt, BIF_P->common.id, refp);
+
+ if (refp && res == ERTS_PORT_OP_SCHEDULED) {
+ ASSERT(is_internal_ref(ref));
+ BIF_TRAP3(await_port_send_result_trap, BIF_P, ref, am_true, am_true);
+ }
+ }
+ }
+
BIF_RET(am_true);
}
else if (is_external_port(BIF_ARG_1)
@@ -991,7 +1015,7 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
if (ERTS_PROC_PENDING_EXIT(BIF_P))
goto handle_pending_exit;
#endif
- l = erts_remove_link(&BIF_P->nlinks,BIF_ARG_1);
+ l = erts_remove_link(&ERTS_P_LINKS(BIF_P), BIF_ARG_1);
erts_smp_proc_unlock(BIF_P,
ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS);
@@ -1020,8 +1044,8 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
#endif
case ERTS_DSIG_PREP_CONNECTED:
- erts_remove_dist_link(&dld, BIF_P->id, BIF_ARG_1, dep);
- code = erts_dsig_send_unlink(&dsd, BIF_P->id, BIF_ARG_1);
+ erts_remove_dist_link(&dld, BIF_P->common.id, BIF_ARG_1, dep);
+ code = erts_dsig_send_unlink(&dsd, BIF_P->common.id, BIF_ARG_1);
erts_destroy_dist_link(&dld);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
@@ -1035,10 +1059,6 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
/* Internal pid... */
- /* process ok ? */
- if (internal_pid_index(BIF_ARG_1) >= erts_max_processes)
- BIF_ERROR(BIF_P, BADARG);
-
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCK_STATUS);
/* get process struct */
@@ -1057,7 +1077,7 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
#endif
/* unlink and ignore errors */
- l = erts_remove_link(&BIF_P->nlinks,BIF_ARG_1);
+ l = erts_remove_link(&ERTS_P_LINKS(BIF_P), BIF_ARG_1);
if (l != NULL)
erts_destroy_link(l);
@@ -1065,12 +1085,12 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P);
}
else {
- rl = erts_remove_link(&(rp->nlinks),BIF_P->id);
+ rl = erts_remove_link(&ERTS_P_LINKS(rp), BIF_P->common.id);
if (rl != NULL)
erts_destroy_link(rl);
if (IS_TRACED_FL(rp, F_TRACE_PROCS) && rl != NULL) {
- trace_proc(BIF_P, rp, am_getting_unlinked, BIF_P->id);
+ trace_proc(BIF_P, rp, am_getting_unlinked, BIF_P->common.id);
}
if (rp != BIF_P)
@@ -1103,8 +1123,9 @@ BIF_RETTYPE hibernate_3(BIF_ALIST_3)
if (erts_hibernate(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, reg)) {
/*
- * If hibernate succeeded, TRAP. The process will be suspended
- * if status is P_WAITING or continue (if any message was in the queue).
+ * If hibernate succeeded, TRAP. The process will be wait in a
+ * hibernated state if its state is inactive (!ERTS_PSFLG_ACTIVE);
+ * otherwise, continue executing (if any message was in the queue).
*/
BIF_TRAP_CODE_PTR_(BIF_P, BIF_P->i);
}
@@ -1342,15 +1363,28 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
*/
if (is_internal_port(BIF_ARG_1)) {
- Port *prt;
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- prt = erts_id2port(BIF_ARG_1, NULL, 0);
+ Port *prt = erts_port_lookup(BIF_ARG_1, ERTS_PORT_SFLGS_INVALID_LOOKUP);
+
if (prt) {
- erts_do_exit_port(prt, BIF_P->id, BIF_ARG_2);
- erts_port_release(prt);
+ Eterm ref;
+ Eterm *refp = erts_port_synchronous_ops ? &ref : NULL;
+ ErtsPortOpResult res;
+
+#ifdef DEBUG
+ ref = NIL;
+#endif
+
+ res = erts_port_exit(BIF_P, 0, prt, BIF_P->common.id, BIF_ARG_2, refp);
+
+ ERTS_BIF_CHK_EXITED(BIF_P);
+
+ if (refp && res == ERTS_PORT_OP_SCHEDULED) {
+ ASSERT(is_internal_ref(ref));
+ BIF_TRAP3(await_port_send_result_trap, BIF_P, ref, am_true, am_true);
+ }
+
}
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- ERTS_BIF_CHK_EXITED(BIF_P);
+
BIF_RET(am_true);
}
else if(is_external_port(BIF_ARG_1)
@@ -1376,7 +1410,7 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
case ERTS_DSIG_PREP_NOT_CONNECTED:
BIF_TRAP2(dexit_trap, BIF_P, BIF_ARG_1, BIF_ARG_2);
case ERTS_DSIG_PREP_CONNECTED:
- code = erts_dsig_send_exit2(&dsd, BIF_P->id, BIF_ARG_1, BIF_ARG_2);
+ code = erts_dsig_send_exit2(&dsd, BIF_P->common.id, BIF_ARG_1, BIF_ARG_2);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
BIF_RET(am_true);
@@ -1394,18 +1428,15 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
*/
ErtsProcLocks rp_locks;
- if (internal_pid_index(BIF_ARG_1) >= erts_max_processes)
- BIF_ERROR(BIF_P, BADARG);
- if (BIF_ARG_1 == BIF_P->id) {
+ if (BIF_ARG_1 == BIF_P->common.id) {
rp_locks = ERTS_PROC_LOCKS_ALL;
rp = BIF_P;
erts_smp_proc_lock(rp, ERTS_PROC_LOCKS_ALL_MINOR);
}
else {
rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN,
- BIF_ARG_1, rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
+ BIF_ARG_1, rp_locks);
if (!rp) {
BIF_RET(am_true);
}
@@ -1415,7 +1446,7 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
* Send an exit signal.
*/
erts_send_exit_signal(BIF_P,
- BIF_P->id,
+ BIF_P->common.id,
rp,
&rp_locks,
BIF_ARG_2,
@@ -1427,8 +1458,6 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
rp_locks &= ~ERTS_PROC_LOCK_MAIN;
if (rp_locks)
erts_smp_proc_unlock(rp, rp_locks);
- if (rp != BIF_P)
- erts_smp_proc_dec_refc(rp);
#endif
/*
* We may have exited ourselves and may have to take action.
@@ -1502,14 +1531,13 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_priority) {
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS);
old_value = erts_set_process_priority(BIF_P, BIF_ARG_2);
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS);
if (old_value == THE_NON_VALUE)
goto error;
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_trap_exit) {
+ erts_aint32_t state;
Uint trap_exit;
if (BIF_ARG_2 == am_true) {
trap_exit = 1;
@@ -1520,63 +1548,58 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
}
/*
* NOTE: It is important that we check for pending exit signals
- * and handle them before flag trap_exit is set to true.
- * For more info, see implementation of erts_send_exit_signal().
+ * and handle them before returning if trap_exit is set to
+ * true. For more info, see implementation of
+ * erts_send_exit_signal().
*/
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS);
- ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P,
- ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- old_value = ERTS_PROC_IS_TRAPPING_EXITS(BIF_P) ? am_true : am_false;
- if (trap_exit) {
- ERTS_PROC_SET_TRAP_EXIT(BIF_P);
- } else {
- ERTS_PROC_UNSET_TRAP_EXIT(BIF_P);
+ if (trap_exit)
+ state = erts_smp_atomic32_read_bor_mb(&BIF_P->state,
+ ERTS_PSFLG_TRAP_EXIT);
+ else
+ state = erts_smp_atomic32_read_band_mb(&BIF_P->state,
+ ~ERTS_PSFLG_TRAP_EXIT);
+#ifdef ERTS_SMP
+ if (ERTS_PROC_PENDING_EXIT(BIF_P)) {
+ erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN);
+ ERTS_BIF_EXITED(BIF_P);
}
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS);
+#endif
+
+ old_value = (state & ERTS_PSFLG_TRAP_EXIT) ? am_true : am_false;
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_scheduler) {
- int yield;
- ErtsRunQueue *old;
- ErtsRunQueue *new;
+ ErtsRunQueue *old, *new, *curr;
Sint sched;
+ erts_aint32_t state;
+
if (!is_small(BIF_ARG_2))
goto error;
sched = signed_val(BIF_ARG_2);
if (sched < 0 || erts_no_schedulers < sched)
goto error;
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS);
- old = BIF_P->bound_runq;
-#ifdef ERTS_SMP
- ASSERT(!old || old == BIF_P->run_queue);
-#endif
- new = !sched ? NULL : erts_schedid2runq(sched);
-#ifndef ERTS_SMP
- yield = 0;
-#else
- if (new == old)
- yield = 0;
+
+ if (sched == 0) {
+ new = NULL;
+ state = erts_smp_atomic32_read_band_mb(&BIF_P->state,
+ ~ERTS_PSFLG_BOUND);
+ }
else {
- ErtsRunQueue *curr = BIF_P->run_queue;
- if (!new)
- erts_smp_runq_lock(curr);
- else
- erts_smp_runqs_lock(curr, new);
- yield = new && BIF_P->run_queue != new;
-#endif
- BIF_P->bound_runq = new;
+ new = erts_schedid2runq(sched);
#ifdef ERTS_SMP
- if (new)
- BIF_P->run_queue = new;
- if (!new)
- erts_smp_runq_unlock(curr);
- else
- erts_smp_runqs_unlock(curr, new);
- }
+ erts_atomic_set_nob(&BIF_P->run_queue, (erts_aint_t) new);
#endif
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS);
+ state = erts_smp_atomic32_read_bor_mb(&BIF_P->state,
+ ERTS_PSFLG_BOUND);
+ }
+
+ curr = ERTS_GET_SCHEDULER_DATA_FROM_PROC(BIF_P)->run_queue;
+ old = (ERTS_PSFLG_BOUND & state) ? curr : NULL;
+
+ ASSERT(!old || old == curr);
+
old_value = old ? make_small(old->ix+1) : make_small(0);
- if (yield)
+ if (new && new != curr)
ERTS_BIF_YIELD_RETURN_X(BIF_P, old_value, am_scheduler);
else
BIF_RET(old_value);
@@ -1625,11 +1648,13 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
goto error;
}
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCKS_ALL_MINOR);
- old_value = BIF_P->trace_flags & F_SENSITIVE ? am_true : am_false;
+ old_value = (ERTS_TRACE_FLAGS(BIF_P) & F_SENSITIVE
+ ? am_true
+ : am_false);
if (is_sensitive) {
- BIF_P->trace_flags |= F_SENSITIVE;
+ ERTS_TRACE_FLAGS(BIF_P) |= F_SENSITIVE;
} else {
- BIF_P->trace_flags &= ~F_SENSITIVE;
+ ERTS_TRACE_FLAGS(BIF_P) &= ~F_SENSITIVE;
}
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCKS_ALL_MINOR);
BIF_RET(old_value);
@@ -1755,8 +1780,9 @@ ebif_bang_2(BIF_ALIST_2)
#define SEND_BADARG (-4)
#define SEND_USER_ERROR (-5)
#define SEND_INTERNAL_ERROR (-6)
+#define SEND_AWAIT_RESULT (-7)
-Sint do_send(Process *p, Eterm to, Eterm msg, int suspend);
+Sint do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp);
static Sint remote_send(Process *p, DistEntry *dep,
Eterm to, Eterm full_to, Eterm msg, int suspend)
@@ -1810,7 +1836,7 @@ static Sint remote_send(Process *p, DistEntry *dep,
}
Sint
-do_send(Process *p, Eterm to, Eterm msg, int suspend) {
+do_send(Process *p, Eterm to, Eterm msg, int suspend, Eterm *refp) {
Eterm portid;
Port *pt;
Process* rp;
@@ -1822,17 +1848,10 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
trace_send(p, to, msg);
if (ERTS_PROC_GET_SAVED_CALLS_BUF(p))
save_calls(p, &exp_send);
-
- if (internal_pid_index(to) >= erts_max_processes)
- return SEND_BADARG;
- rp = erts_pid2proc_opt(p, ERTS_PROC_LOCK_MAIN,
- to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
-
- if (!rp) {
- ERTS_SMP_ASSERT_IS_NOT_EXITING(p);
+ rp = erts_proc_lookup_raw(to);
+ if (!rp)
return 0;
- }
} else if (is_external_pid(to)) {
dep = external_pid_dist_entry(to);
if(dep == erts_this_dist_entry) {
@@ -1841,7 +1860,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
"Discarding message %T from %T to %T in an old "
"incarnation (%d) of this node (%d)\n",
msg,
- p->id,
+ p->common.id,
to,
external_pid_creation(to),
erts_this_node->creation);
@@ -1850,45 +1869,24 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
}
return remote_send(p, dep, to, to, msg, suspend);
} else if (is_atom(to)) {
-
- /* Need to virtual schedule out sending process
- * because of lock wait. This is only necessary
- * for internal port calling but the lock is bundled
- * with name lookup.
- */
-
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_out);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(p, am_inactive);
- }
- erts_whereis_name(p, ERTS_PROC_LOCK_MAIN,
- to,
- &rp, 0, ERTS_P2P_FLG_SMP_INC_REFC,
- &pt);
+ Eterm id = erts_whereis_name_to_id(p, to);
+
+ rp = erts_proc_lookup(id);
+ if (rp)
+ goto send_message;
+ pt = erts_port_lookup(id, ERTS_PORT_SFLGS_INVALID_LOOKUP);
if (pt) {
- portid = pt->id;
+ portid = id;
goto port_common;
}
-
- /* Not a port virtually schedule the process back in */
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_in);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(p, am_active);
- }
if (IS_TRACED(p))
trace_send(p, to, msg);
if (ERTS_PROC_GET_SAVED_CALLS_BUF(p))
save_calls(p, &exp_send);
- if (!rp) {
- return SEND_BADARG;
- }
+ return SEND_BADARG;
} else if (is_external_port(to)
&& (external_port_dist_entry(to)
== erts_this_dist_entry)) {
@@ -1897,50 +1895,56 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
"Discarding message %T from %T to %T in an old "
"incarnation (%d) of this node (%d)\n",
msg,
- p->id,
+ p->common.id,
to,
external_port_creation(to),
erts_this_node->creation);
erts_send_error_to_logger(p->group_leader, dsbufp);
return 0;
} else if (is_internal_port(to)) {
+ int ret_val;
portid = to;
- /* schedule out calling process, waiting for lock*/
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_out);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(p, am_inactive);
- }
- pt = erts_id2port(to, p, ERTS_PROC_LOCK_MAIN);
+
+ pt = erts_port_lookup(portid, ERTS_PORT_SFLGS_INVALID_LOOKUP);
+
port_common:
- ERTS_SMP_LC_ASSERT(!pt || erts_lc_is_port_locked(pt));
+ ret_val = 0;
- /* We have waited for locks, trace schedule ports */
- if (pt && IS_TRACED_FL(pt, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(pt, am_in, am_command);
- }
- if (pt && erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(pt)) {
- profile_runnable_port(pt, am_active);
- }
-
- /* XXX let port_command handle the busy stuff !!! */
- if (pt && (pt->status & ERTS_PORT_SFLG_PORT_BUSY)) {
- if (suspend) {
- erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
- if (erts_system_monitor_flags.busy_port) {
- monitor_generic(p, am_busy_port, portid);
+ if (pt) {
+ int ps_flags = suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND;
+ *refp = NIL;
+
+ switch (erts_port_command(p, ps_flags, pt, msg, refp)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ /* We are exiting... */
+ return SEND_USER_ERROR;
+ case ERTS_PORT_OP_BUSY:
+ /* Nothing has been sent */
+ if (suspend)
+ erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
+ return SEND_YIELD;
+ case ERTS_PORT_OP_BUSY_SCHEDULED:
+ /* Message was sent */
+ if (suspend) {
+ erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
+ ret_val = SEND_YIELD_RETURN;
+ break;
}
+ /* Fall through */
+ case ERTS_PORT_OP_SCHEDULED:
+ if (is_not_nil(*refp)) {
+ ASSERT(is_internal_ref(*refp));
+ ret_val = SEND_AWAIT_RESULT;
+ }
+ break;
+ case ERTS_PORT_OP_DROPPED:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DONE:
+ break;
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_command() result");
+ break;
}
- /* Virtually schedule out the port before releasing */
- if (IS_TRACED_FL(pt, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(pt, am_out, am_command);
- }
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(pt)) {
- profile_runnable_port(pt, am_inactive);
- }
- erts_port_release(pt);
- return SEND_YIELD;
}
if (IS_TRACED(p)) /* trace once only !! */
@@ -1958,30 +1962,11 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
SEQ_TRACE_SEND, portid, p);
}
- /* XXX NO GC in port command */
- erts_port_command(p, p->id, pt, msg);
- if (pt) {
- /* Virtually schedule out the port before releasing */
- if (IS_TRACED_FL(pt, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(pt, am_out, am_command);
- }
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(pt)) {
- profile_runnable_port(pt, am_inactive);
- }
- erts_port_release(pt);
- }
- /* Virtually schedule in process */
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_in);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(p, am_active);
- }
if (ERTS_PROC_IS_EXITING(p)) {
KILL_CATCHES(p); /* Must exit */
return SEND_USER_ERROR;
}
- return 0;
+ return ret_val;
} else if (is_tuple(to)) { /* Remote send */
int ret;
tp = tuple_val(to);
@@ -1997,47 +1982,24 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
dep = erts_sysname_to_connected_dist_entry(tp[2]);
if (dep == erts_this_dist_entry) {
+ Eterm id;
erts_deref_dist_entry(dep);
if (IS_TRACED(p))
trace_send(p, to, msg);
if (ERTS_PROC_GET_SAVED_CALLS_BUF(p))
save_calls(p, &exp_send);
-
- /* Need to virtual schedule out sending process
- * because of lock wait. This is only necessary
- * for internal port calling but the lock is bundled.
- */
-
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_out);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(p, am_inactive);
- }
- erts_whereis_name(p, ERTS_PROC_LOCK_MAIN,
- tp[1],
- &rp, 0, ERTS_P2P_FLG_SMP_INC_REFC,
- &pt);
+ id = erts_whereis_name_to_id(p, tp[1]);
+
+ rp = erts_proc_lookup_raw(id);
+ if (rp)
+ goto send_message;
+ pt = erts_port_lookup(id, ERTS_PORT_SFLGS_INVALID_LOOKUP);
if (pt) {
- portid = pt->id;
+ portid = id;
goto port_common;
}
- /* Port lookup failed, virtually schedule the process
- * back in.
- */
-
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_in);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(p, am_active);
- }
-
- if (!rp) {
- return 0;
- }
- goto send_message;
+ return 0;
}
ret = remote_send(p, dep, tp[1], to, msg, suspend);
@@ -2060,23 +2022,15 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
rp_locks |= ERTS_PROC_LOCK_MAIN;
#endif
/* send to local process */
- erts_send_message(p, rp, &rp_locks, msg, 0);
- if (!erts_use_sender_punish)
+ res = erts_send_message(p, rp, &rp_locks, msg, 0);
+ if (erts_use_sender_punish)
+ res *= 4;
+ else
res = 0;
- else {
-#ifdef ERTS_SMP
- res = rp->msg_inq.len*4;
- if (ERTS_PROC_LOCK_MAIN & rp_locks)
- res += rp->msg.len*4;
-#else
- res = rp->msg.len*4;
-#endif
- }
erts_smp_proc_unlock(rp,
p == rp
? (rp_locks & ~ERTS_PROC_LOCK_MAIN)
: rp_locks);
- erts_smp_proc_dec_refc(rp);
return res;
}
}
@@ -2084,6 +2038,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
BIF_RETTYPE send_3(BIF_ALIST_3)
{
+ Eterm ref;
Process *p = BIF_P;
Eterm to = BIF_ARG_1;
Eterm msg = BIF_ARG_2;
@@ -2107,12 +2062,18 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
if(!is_nil(l)) {
BIF_ERROR(p, BADARG);
}
-
- result = do_send(p, to, msg, suspend);
+
+#ifdef DEBUG
+ ref = NIL;
+#endif
+
+ result = do_send(p, to, msg, suspend, &ref);
if (result > 0) {
ERTS_VBUMP_REDS(p, result);
BIF_RET(am_ok);
- } else switch (result) {
+ }
+
+ switch (result) {
case 0:
BIF_RET(am_ok);
break;
@@ -2135,6 +2096,9 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
ERTS_BIF_YIELD_RETURN(p, am_ok);
else
BIF_RET(am_nosuspend);
+ case SEND_AWAIT_RESULT:
+ ASSERT(is_internal_ref(ref));
+ BIF_TRAP3(await_port_send_result_trap, p, ref, am_nosuspend, am_ok);
case SEND_BADARG:
BIF_ERROR(p, BADARG);
break;
@@ -2159,12 +2123,21 @@ BIF_RETTYPE send_2(BIF_ALIST_2)
Eterm erl_send(Process *p, Eterm to, Eterm msg)
{
- Sint result = do_send(p, to, msg, !0);
+ Eterm ref;
+ Sint result;
+
+#ifdef DEBUG
+ ref = NIL;
+#endif
+
+ result = do_send(p, to, msg, !0, &ref);
if (result > 0) {
ERTS_VBUMP_REDS(p, result);
BIF_RET(msg);
- } else switch (result) {
+ }
+
+ switch (result) {
case 0:
BIF_RET(msg);
break;
@@ -2176,6 +2149,9 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg)
break;
case SEND_YIELD_RETURN:
ERTS_BIF_YIELD_RETURN(p, msg);
+ case SEND_AWAIT_RESULT:
+ ASSERT(is_internal_ref(ref));
+ BIF_TRAP3(await_port_send_result_trap, p, ref, msg, msg);
case SEND_BADARG:
BIF_ERROR(p, BADARG);
break;
@@ -2445,9 +2421,7 @@ BIF_RETTYPE setelement_3(BIF_ALIST_3)
/* copy the tuple */
resp = hp;
- while (size--) { /* XXX use memcpy? */
- *hp++ = *ptr++;
- }
+ sys_memcpy(hp, ptr, sizeof(Eterm)*size);
resp[ix] = BIF_ARG_3;
BIF_RET(make_tuple(resp));
}
@@ -2460,7 +2434,7 @@ BIF_RETTYPE make_tuple_2(BIF_ALIST_2)
Eterm* hp;
Eterm res;
- if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0) {
+ if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0 || n > ERTS_MAX_TUPLE_SIZE) {
BIF_ERROR(BIF_P, BADARG);
}
hp = HAlloc(BIF_P, n+1);
@@ -2481,7 +2455,7 @@ BIF_RETTYPE make_tuple_3(BIF_ALIST_3)
Eterm list = BIF_ARG_3;
Eterm* tup;
- if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0) {
+ if (is_not_small(BIF_ARG_1) || (n = signed_val(BIF_ARG_1)) < 0 || n > ERTS_MAX_TUPLE_SIZE) {
error:
BIF_ERROR(BIF_P, BADARG);
}
@@ -2533,11 +2507,16 @@ BIF_RETTYPE append_element_2(BIF_ALIST_2)
Eterm res;
if (is_not_tuple(BIF_ARG_1)) {
+ error:
BIF_ERROR(BIF_P, BADARG);
}
- ptr = tuple_val(BIF_ARG_1);
+ ptr = tuple_val(BIF_ARG_1);
arity = arityval(*ptr);
- hp = HAlloc(BIF_P, arity + 2);
+
+ if (arity + 1 > ERTS_MAX_TUPLE_SIZE)
+ goto error;
+
+ hp = HAlloc(BIF_P, arity + 2);
res = make_tuple(hp);
*hp = make_arityval(arity+1);
while (arity--) {
@@ -2547,6 +2526,78 @@ BIF_RETTYPE append_element_2(BIF_ALIST_2)
BIF_RET(res);
}
+BIF_RETTYPE insert_element_3(BIF_ALIST_3)
+{
+ Eterm* ptr;
+ Eterm* hp;
+ Uint arity;
+ Eterm res;
+ Sint ix;
+
+ if (is_not_tuple(BIF_ARG_2) || is_not_small(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+
+ ptr = tuple_val(BIF_ARG_2);
+ arity = arityval(*ptr);
+ ix = signed_val(BIF_ARG_1);
+
+ if ((ix < 1) || (ix > (arity + 1))) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+
+ hp = HAlloc(BIF_P, arity + 1 + 1);
+ res = make_tuple(hp);
+ *hp = make_arityval(arity + 1);
+
+ ix--;
+ arity -= ix;
+
+ while (ix--) { *++hp = *++ptr; }
+
+ *++hp = BIF_ARG_3;
+
+ while(arity--) { *++hp = *++ptr; }
+
+ BIF_RET(res);
+}
+
+BIF_RETTYPE delete_element_2(BIF_ALIST_3)
+{
+ Eterm* ptr;
+ Eterm* hp;
+ Uint arity;
+ Eterm res;
+ Sint ix;
+
+ if (is_not_tuple(BIF_ARG_2) || is_not_small(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+
+ ptr = tuple_val(BIF_ARG_2);
+ arity = arityval(*ptr);
+ ix = signed_val(BIF_ARG_1);
+
+ if ((ix < 1) || (ix > arity) || (arity == 0)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+
+ hp = HAlloc(BIF_P, arity + 1 - 1);
+ res = make_tuple(hp);
+ *hp = make_arityval(arity - 1);
+
+ ix--;
+ arity -= ix;
+
+ while (ix--) { *++hp = *++ptr; }
+
+ ++ptr;
+
+ while(arity--) { *++hp = *++ptr; }
+
+ BIF_RET(res);
+}
+
/**********************************************************************/
/* convert an atom to a list of ascii integer */
@@ -2861,7 +2912,7 @@ BIF_RETTYPE float_to_list_1(BIF_ALIST_1)
if (is_not_float(BIF_ARG_1))
BIF_ERROR(BIF_P, BADARG);
GET_DOUBLE(BIF_ARG_1, f);
- if ((i = sys_double_to_chars(f.fd, fbuf)) <= 0)
+ if ((i = sys_double_to_chars(f.fd, fbuf, sizeof(fbuf))) <= 0)
BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR);
need = i*2;
hp = HAlloc(BIF_P, need);
@@ -3121,7 +3172,7 @@ BIF_RETTYPE list_to_tuple_1(BIF_ALIST_1)
Eterm* hp;
int len;
- if ((len = list_length(list)) < 0) {
+ if ((len = list_length(list)) < 0 || len > ERTS_MAX_TUPLE_SIZE) {
BIF_ERROR(BIF_P, BADARG);
}
@@ -3143,7 +3194,7 @@ BIF_RETTYPE list_to_tuple_1(BIF_ALIST_1)
BIF_RETTYPE self_0(BIF_ALIST_0)
{
- BIF_RET(BIF_P->id);
+ BIF_RET(BIF_P->common.id);
}
/**********************************************************************/
@@ -3180,11 +3231,9 @@ static erts_smp_spinlock_t make_ref_lock;
static erts_smp_mtx_t ports_snapshot_mtx;
erts_smp_atomic_t erts_dead_ports_ptr; /* To store dying ports during snapshot */
-Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE])
+void
+erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS])
{
- Eterm* hp = buffer;
- Uint32 ref0, ref1, ref2;
-
erts_smp_spin_lock(&make_ref_lock);
reference0++;
@@ -3196,24 +3245,36 @@ Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE])
}
}
- ref0 = reference0;
- ref1 = reference1;
- ref2 = reference2;
+ ref[0] = reference0;
+ ref[1] = reference1;
+ ref[2] = reference2;
erts_smp_spin_unlock(&make_ref_lock);
+}
+
+Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE])
+{
+ Eterm* hp = buffer;
+ Uint32 ref[ERTS_MAX_REF_NUMBERS];
- write_ref_thing(hp, ref0, ref1, ref2);
+ erts_make_ref_in_array(ref);
+ write_ref_thing(hp, ref[0], ref[1], ref[2]);
return make_internal_ref(hp);
}
Eterm erts_make_ref(Process *p)
{
Eterm* hp;
+ Uint32 ref[ERTS_MAX_REF_NUMBERS];
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));
hp = HAlloc(p, REF_THING_SIZE);
- return erts_make_ref_in_buffer(hp);
+
+ erts_make_ref_in_array(ref);
+ write_ref_thing(hp, ref[0], ref[1], ref[2]);
+
+ return make_internal_ref(hp);
}
BIF_RETTYPE make_ref_0(BIF_ALIST_0)
@@ -3477,7 +3538,7 @@ BIF_RETTYPE garbage_collect_1(BIF_ALIST_1)
BIF_ERROR(BIF_P, BADARG);
}
- if (BIF_P->id == BIF_ARG_1)
+ if (BIF_P->common.id == BIF_ARG_1)
rp = BIF_P;
else {
#ifdef ERTS_SMP
@@ -3486,7 +3547,7 @@ BIF_RETTYPE garbage_collect_1(BIF_ALIST_1)
if (rp == ERTS_PROC_LOCK_BUSY)
ERTS_BIF_YIELD1(bif_export[BIF_garbage_collect_1], BIF_P, BIF_ARG_1);
#else
- rp = erts_pid2proc(BIF_P, 0, BIF_ARG_1, 0);
+ rp = erts_proc_lookup(BIF_ARG_1);
#endif
if (!rp)
BIF_RET(am_false);
@@ -3517,71 +3578,23 @@ BIF_RETTYPE garbage_collect_0(BIF_ALIST_0)
}
/**********************************************************************/
-/* Return a list of active ports */
+/*
+ * The erlang:processes/0 BIF.
+ */
-BIF_RETTYPE ports_0(BIF_ALIST_0)
+BIF_RETTYPE processes_0(BIF_ALIST_0)
{
- Eterm res = NIL;
- Eterm* port_buf = erts_alloc(ERTS_ALC_T_TMP,
- sizeof(Eterm)*erts_max_ports);
- Eterm* pp = port_buf;
- Eterm* dead_ports;
- int alive, dead;
- Uint32 next_ss;
- int i;
-
- /* To get a consistent snapshot...
- * We add alive ports from start of the buffer
- * while dying ports are added from the other end by the killing threads.
- */
-
- erts_smp_mtx_lock(&ports_snapshot_mtx); /* One snapshot at a time */
-
- erts_smp_atomic_set_nob(&erts_dead_ports_ptr,
- (erts_aint_t) (port_buf + erts_max_ports));
-
- next_ss = erts_smp_atomic32_inc_read_relb(&erts_ports_snapshot);
-
- for (i = erts_max_ports-1; i >= 0; i--) {
- Port* prt = &erts_port[i];
- erts_smp_port_state_lock(prt);
- if (!(prt->status & ERTS_PORT_SFLGS_DEAD)
- && prt->snapshot != next_ss) {
- ASSERT(prt->snapshot == next_ss - 1);
- *pp++ = prt->id;
- prt->snapshot = next_ss; /* Consumed by this snapshot */
- }
- erts_smp_port_state_unlock(prt);
- }
-
- dead_ports = (Eterm*)erts_smp_atomic_xchg_nob(&erts_dead_ports_ptr,
- (erts_aint_t) NULL);
- erts_smp_mtx_unlock(&ports_snapshot_mtx);
-
- ASSERT(pp <= dead_ports);
-
- alive = pp - port_buf;
- dead = port_buf + erts_max_ports - dead_ports;
-
- ASSERT((alive+dead) <= erts_max_ports);
-
- if (alive+dead > 0) {
- erts_aint_t i;
- Eterm *hp = HAlloc(BIF_P, (alive+dead)*2);
-
- for (i = 0; i < alive; i++) {
- res = CONS(hp, port_buf[i], res);
- hp += 2;
- }
- for (i = 0; i < dead; i++) {
- res = CONS(hp, dead_ports[i], res);
- hp += 2;
- }
- }
+ return erts_ptab_list(BIF_P, &erts_proc);
+}
- erts_free(ERTS_ALC_T_TMP, port_buf);
+/**********************************************************************/
+/*
+ * The erlang:ports/0 BIF.
+ */
- BIF_RET(res);
+BIF_RETTYPE ports_0(BIF_ALIST_0)
+{
+ return erts_ptab_list(BIF_P, &erts_port);
}
/**********************************************************************/
@@ -3780,7 +3793,8 @@ BIF_RETTYPE function_exported_3(BIF_ALIST_3)
is_not_small(BIF_ARG_3)) {
BIF_ERROR(BIF_P, BADARG);
}
- if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3)) == NULL) {
+ if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3),
+ erts_active_code_ix()) == NULL) {
BIF_RET(am_false);
}
BIF_RET(am_true);
@@ -4210,14 +4224,15 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2)
BIF_RET(old_value);
}
} else if (BIF_ARG_1 == make_small(1)) {
- Uint i;
+ int i, max;
ErlMessage* mp;
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
- for (i = 0; i < erts_max_processes; i++) {
- if (process_tab[i] != (Process*) 0) {
- Process* p = process_tab[i];
+ max = erts_ptab_max(&erts_proc);
+ for (i = 0; i < max; i++) {
+ Process *p = erts_pix2proc(i);
+ if (p) {
#ifdef USE_VM_PROBES
p->seq_trace_token = (p->dt_utag != NIL) ? am_have_dt_utag : NIL;
#else
@@ -4513,6 +4528,21 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p,
Export bif_return_trap_export;
+void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a,
+ Eterm (*bif)(BIF_ALIST_0))
+{
+ int i;
+ sys_memset((void *) ep, 0, sizeof(Export));
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ ep->addressv[i] = &ep->code[3];
+ }
+ ep->code[0] = m;
+ ep->code[1] = f;
+ ep->code[2] = a;
+ ep->code[3] = (BeamInstr) em_apply_bif;
+ ep->code[4] = (BeamInstr) bif;
+}
+
void erts_init_bif(void)
{
reference0 = 0;
@@ -4528,17 +4558,13 @@ void erts_init_bif(void)
* yield the calling process traps to. The only thing it does:
* return the value passed as argument.
*/
- sys_memset((void *) &bif_return_trap_export, 0, sizeof(Export));
- bif_return_trap_export.address = &bif_return_trap_export.code[3];
- bif_return_trap_export.code[0] = am_erlang;
- bif_return_trap_export.code[1] = am_bif_return_trap;
+ erts_init_trap_export(&bif_return_trap_export, am_erlang, am_bif_return_trap,
#ifdef DEBUG
- bif_return_trap_export.code[2] = 2;
+ 2
#else
- bif_return_trap_export.code[2] = 1;
+ 1
#endif
- bif_return_trap_export.code[3] = (BeamInstr) em_apply_bif;
- bif_return_trap_export.code[4] = (BeamInstr) &bif_return_trap;
+ , &bif_return_trap);
flush_monitor_message_trap = erts_export_put(am_erlang,
am_flush_monitor_message,
@@ -4551,6 +4577,8 @@ void erts_init_bif(void)
am_format_cpu_topology,
1);
await_proc_exit_trap = erts_export_put(am_erlang,am_await_proc_exit,3);
+ await_port_send_result_trap
+ = erts_export_put(am_erts_internal, am_await_port_send_result, 3);
await_sched_wall_time_mod_trap
= erts_export_put(am_erlang, am_await_sched_wall_time_modifications, 2);
erts_smp_atomic32_init_nob(&sched_wall_time, 0);
@@ -4566,19 +4594,18 @@ bif erlang:send_to_logger/2
BIF_RETTYPE send_to_logger_2(BIF_ALIST_2)
{
byte *buf;
- int len;
+ ErlDrvSizeT len;
if (!is_atom(BIF_ARG_1) || !(is_list(BIF_ARG_2) ||
is_nil(BIF_ARG_1))) {
BIF_ERROR(BIF_P,BADARG);
}
- len = io_list_len(BIF_ARG_2);
- if (len < 0)
+ if (erts_iolist_size(BIF_ARG_2, &len) != 0)
BIF_ERROR(BIF_P,BADARG);
else if (len == 0)
buf = "";
else {
#ifdef DEBUG
- int len2;
+ ErlDrvSizeT len2;
#endif
buf = (byte *) erts_alloc(ERTS_ALC_T_TMP, len+1);
#ifdef DEBUG
@@ -4586,7 +4613,7 @@ BIF_RETTYPE send_to_logger_2(BIF_ALIST_2)
#else
(void)
#endif
- io_list_to_buf(BIF_ARG_2, buf, len);
+ erts_iolist_to_buf(BIF_ARG_2, buf, len);
ASSERT(len2 == len);
buf[len] = '\0';
switch (BIF_ARG_1) {
@@ -4680,7 +4707,6 @@ BIF_RETTYPE dt_prepend_vm_tag_data_1(BIF_ALIST_1)
#ifdef USE_VM_PROBES
Eterm b;
Eterm *hp;
- hp = HAlloc(BIF_P,2);
if (is_binary((DT_UTAG(BIF_P)))) {
Uint sz = binary_size(DT_UTAG(BIF_P));
int i;
@@ -4697,6 +4723,7 @@ BIF_RETTYPE dt_prepend_vm_tag_data_1(BIF_ALIST_1)
} else {
b = new_binary(BIF_P,(byte *)"\0",1);
}
+ hp = HAlloc(BIF_P,2);
BIF_RET(CONS(hp,b,BIF_ARG_1));
#else
BIF_RET(BIF_ARG_1);
@@ -4707,7 +4734,6 @@ BIF_RETTYPE dt_append_vm_tag_data_1(BIF_ALIST_1)
#ifdef USE_VM_PROBES
Eterm b;
Eterm *hp;
- hp = HAlloc(BIF_P,2);
if (is_binary((DT_UTAG(BIF_P)))) {
Uint sz = binary_size(DT_UTAG(BIF_P));
int i;
@@ -4724,6 +4750,7 @@ BIF_RETTYPE dt_append_vm_tag_data_1(BIF_ALIST_1)
} else {
b = new_binary(BIF_P,(byte *)"\0",1);
}
+ hp = HAlloc(BIF_P,2);
BIF_RET(CONS(hp,BIF_ARG_1,b));
#else
BIF_RET(BIF_ARG_1);
@@ -4747,14 +4774,14 @@ BIF_RETTYPE dt_spread_tag_1(BIF_ALIST_1)
#ifdef DTRACE_TAG_HARDDEBUG
erts_fprintf(stderr,
"Dtrace -> (%T) start spreading tag %T\r\n",
- BIF_P->id,DT_UTAG(BIF_P));
+ BIF_P->common.id,DT_UTAG(BIF_P));
#endif
} else {
DT_UTAG_FLAGS(BIF_P) &= ~DT_UTAG_SPREADING;
#ifdef DTRACE_TAG_HARDDEBUG
erts_fprintf(stderr,
"Dtrace -> (%T) stop spreading tag %T\r\n",
- BIF_P->id,DT_UTAG(BIF_P));
+ BIF_P->common.id,DT_UTAG(BIF_P));
#endif
}
}
@@ -4780,7 +4807,7 @@ BIF_RETTYPE dt_restore_tag_1(BIF_ALIST_1)
#ifdef DTRACE_TAG_HARDDEBUG
erts_fprintf(stderr,
"Dtrace -> (%T) restore Killing tag!\r\n",
- BIF_P->id);
+ BIF_P->common.id);
#endif
}
DT_UTAG(BIF_P) = NIL;
@@ -4797,12 +4824,12 @@ BIF_RETTYPE dt_restore_tag_1(BIF_ALIST_1)
erts_fprintf(stderr,
"Dtrace -> (%T) restore stop spreading "
"tag %T\r\n",
- BIF_P->id, tpl[2]);
+ BIF_P->common.id, tpl[2]);
} else if ((x & DT_UTAG_SPREADING) &&
!(DT_UTAG_FLAGS(BIF_P) & DT_UTAG_SPREADING)) {
erts_fprintf(stderr,
"Dtrace -> (%T) restore start spreading "
- "tag %T\r\n",BIF_P->id,tpl[2]);
+ "tag %T\r\n",BIF_P->common.id,tpl[2]);
}
#endif
DT_UTAG_FLAGS(BIF_P) = x;
diff --git a/erts/emulator/beam/bif.h b/erts/emulator/beam/bif.h
index d20089a9fb..71f232035d 100644
--- a/erts/emulator/beam/bif.h
+++ b/erts/emulator/beam/bif.h
@@ -125,7 +125,7 @@ do { \
#define ERTS_BIF_PREP_TRAP0(Ret, Trap, Proc) \
do { \
(Proc)->arity = 0; \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -135,7 +135,7 @@ do { \
Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \
(Proc)->arity = 1; \
reg[0] = (Eterm) (A0); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -146,7 +146,7 @@ do { \
(Proc)->arity = 2; \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -158,7 +158,7 @@ do { \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
reg[2] = (Eterm) (A2); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -170,13 +170,13 @@ do { \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
reg[2] = (Eterm) (A2); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
} while (0)
#define BIF_TRAP0(p, Trap_) do { \
(p)->arity = 0; \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -185,7 +185,7 @@ do { \
Eterm* reg = ERTS_PROC_GET_SCHDATA((p))->x_reg_array; \
(p)->arity = 1; \
reg[0] = (A0); \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -195,7 +195,7 @@ do { \
(p)->arity = 2; \
reg[0] = (A0); \
reg[1] = (A1); \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -206,7 +206,7 @@ do { \
reg[0] = (A0); \
reg[1] = (A1); \
reg[2] = (A2); \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -322,27 +322,6 @@ do { \
ERTS_BIF_EXITED((PROC)); \
} while (0)
-#ifdef ERTS_SMP
-#define ERTS_SMP_BIF_CHK_PENDING_EXIT(P, L) \
-do { \
- ERTS_SMP_LC_ASSERT((L) == erts_proc_lc_my_proc_locks((P))); \
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & (L)); \
- if (!((L) & ERTS_PROC_LOCK_STATUS)) \
- erts_smp_proc_lock((P), ERTS_PROC_LOCK_STATUS); \
- if (ERTS_PROC_PENDING_EXIT((P))) { \
- erts_handle_pending_exit((P), (L)|ERTS_PROC_LOCK_STATUS); \
- erts_smp_proc_unlock((P), \
- (((L)|ERTS_PROC_LOCK_STATUS) \
- & ~ERTS_PROC_LOCK_MAIN)); \
- ERTS_BIF_EXITED((P)); \
- } \
- if (!((L) & ERTS_PROC_LOCK_STATUS)) \
- erts_smp_proc_unlock((P), ERTS_PROC_LOCK_STATUS); \
-} while (0)
-#else
-#define ERTS_SMP_BIF_CHK_PENDING_EXIT(P, L)
-#endif
-
/*
* The ERTS_BIF_*_AWAIT_X_*_TRAP makros either exits the caller, or
* sets up a trap to erlang:await_proc_exit/3.
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 797bce43ab..59a91cd40c 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -31,434 +31,233 @@
#
# Important: Use "ubif" for guard BIFs and operators; use "bif" for ordinary BIFs.
#
-# Add new BIFs to the end of the file. Do not bother adding a "packaged BIF name"
-# (such as 'erl.lang.number'); if/when packages will be supported we will add
-# all those names.
+# Add new BIFs to the end of the file.
#
# Note: Guards BIFs require special support in the compiler (to be able to actually
# call them from within a guard).
#
ubif erlang:abs/1
-ubif 'erl.lang.number':abs/1 ebif_abs_1
bif erlang:adler32/1
-bif 'erl.util.crypt.adler32':sum/1 ebif_adler32_1
bif erlang:adler32/2
-bif 'erl.util.crypt.adler32':sum/2 ebif_adler32_2
bif erlang:adler32_combine/3
-bif 'erl.util.crypt.adler32':combine/3 ebif_adler32_combine_3
bif erlang:apply/3
-bif 'erl.lang':apply/3 ebif_apply_3
bif erlang:atom_to_list/1
-bif 'erl.lang.atom':to_string/1 ebif_atom_to_string_1 atom_to_list_1
bif erlang:binary_to_list/1
-bif 'erl.lang.binary':to_list/1 ebif_binary_to_list_1
bif erlang:binary_to_list/3
-bif 'erl.lang.binary':to_list/3 ebif_binary_to_list_3
bif erlang:binary_to_term/1
-bif 'erl.lang.binary':to_term/1 ebif_binary_to_term_1
bif erlang:check_process_code/2
-bif 'erl.system.code':check_process/2 ebif_check_process_code_2
bif erlang:crc32/1
-bif 'erl.util.crypt.crc32':sum/1 ebif_crc32_1
bif erlang:crc32/2
-bif 'erl.util.crypt.crc32':sum/2 ebif_crc32_2
bif erlang:crc32_combine/3
-bif 'erl.util.crypt.crc32':combine/3 ebif_crc32_combine_3
bif erlang:date/0
-bif 'erl.util.date':today/0 ebif_date_0
bif erlang:delete_module/1
-bif 'erl.system.code':delete/1 ebif_delete_module_1
bif erlang:display/1
-bif 'erl.system.debug':display/1 ebif_display_1
bif erlang:display_string/1
-bif 'erl.system.debug':display_string/1 ebif_display_string_1
bif erlang:display_nl/0
-bif 'erl.system.debug':display_nl/0 ebif_display_nl_0
ubif erlang:element/2
-ubif 'erl.lang.tuple':element/2 ebif_element_2
bif erlang:erase/0
-bif 'erl.lang.proc.pdict':erase/0 ebif_erase_0
bif erlang:erase/1
-bif 'erl.lang.proc.pdict':erase/1 ebif_erase_1
bif erlang:exit/1
-bif 'erl.lang':exit/1 ebif_exit_1
bif erlang:exit/2
-bif 'erl.lang.proc':signal/2 ebif_signal_2 exit_2
bif erlang:external_size/1
-bif 'erl.lang.term':external_size/1 ebif_external_size_1
bif erlang:external_size/2
-bif 'erl.lang.term':external_size/2 ebif_external_size_2
ubif erlang:float/1
-ubif 'erl.lang.number':to_float/1 ebif_to_float_1 float_1
bif erlang:float_to_list/1
-bif 'erl.lang.float':to_string/1 ebif_float_to_string_1 float_to_list_1
bif erlang:fun_info/2
-bif 'erl.lang.function':info/2 ebif_fun_info_2
bif erlang:garbage_collect/0
-bif 'erl.system':garbage_collect/0 ebif_garbage_collect_0
bif erlang:garbage_collect/1
-bif 'erl.system':garbage_collect/1 ebif_garbage_collect_1
bif erlang:get/0
-bif 'erl.lang.proc.pdict':get/0 ebif_get_0
bif erlang:get/1
-bif 'erl.lang.proc.pdict':get/1 ebif_get_1
bif erlang:get_keys/1
-bif 'erl.lang.proc.pdict':get_keys/1 ebif_get_keys_1
bif erlang:group_leader/0
-bif 'erl.lang.proc':group_leader/0 ebif_group_leader_0
bif erlang:group_leader/2
-bif 'erl.lang.proc':set_group_leader/2 ebif_group_leader_2
bif erlang:halt/0
-bif 'erl.lang.system':halt/0 ebif_halt_0
bif erlang:halt/1
-bif 'erl.lang.system':halt/1 ebif_halt_1
bif erlang:halt/2
-bif 'erl.lang.system':halt/2 ebif_halt_2
bif erlang:phash/2
bif erlang:phash2/1
bif erlang:phash2/2
-bif 'erl.lang.term':hash/1 ebif_phash2_1
-bif 'erl.lang.term':hash/2 ebif_phash2_2
ubif erlang:hd/1
-ubif 'erl.lang.list':hd/1 ebif_hd_1
bif erlang:integer_to_list/1
-bif 'erl.lang.integer':to_string/1 ebif_integer_to_string_1 integer_to_list_1
bif erlang:is_alive/0
-bif 'erl.lang.node':is_alive/0 ebif_is_alive_0
ubif erlang:length/1
-ubif 'erl.lang.list':length/1 ebif_length_1
bif erlang:link/1
-bif 'erl.lang.proc':link/1 ebif_link_1
bif erlang:list_to_atom/1
-bif 'erl.lang.atom':from_string/1 ebif_string_to_atom_1 list_to_atom_1
bif erlang:list_to_binary/1
-bif 'erl.lang.binary':from_list/1 ebif_list_to_binary_1
bif erlang:list_to_float/1
-bif 'erl.lang.float':from_string/1 ebif_string_to_float_1 list_to_float_1
bif erlang:list_to_integer/1
-bif 'erl.lang.integer':from_string/1 ebif_string_to_integer_1 list_to_integer_1
bif erlang:list_to_pid/1
-bif 'erl.lang.proc':string_to_pid/1 ebif_string_to_pid_1 list_to_pid_1
bif erlang:list_to_tuple/1
-bif 'erl.lang.tuple':from_list/1 ebif_list_to_tuple_1
-bif erlang:load_module/2
-bif 'erl.system.code':load/2 ebif_load_module_2
bif erlang:loaded/0
-bif 'erl.system.code':loaded/0 ebif_loaded_0
bif erlang:localtime/0
-bif 'erl.util.date':local/0 ebif_localtime_0
bif erlang:localtime_to_universaltime/2
-bif 'erl.util.date':local_to_utc/2 ebif_localtime_to_universaltime_2
bif erlang:make_ref/0
-bif 'erl.lang.ref':new/0 ebif_make_ref_0
bif erlang:md5/1
-bif 'erl.util.crypt.md5':digest/1 ebif_md5_1
bif erlang:md5_init/0
-bif 'erl.util.crypt.md5':init/0 ebif_md5_init_0
bif erlang:md5_update/2
-bif 'erl.util.crypt.md5':update/2 ebif_md5_update_2
bif erlang:md5_final/1
-bif 'erl.util.crypt.md5':final/1 ebif_md5_final_1
bif erlang:module_loaded/1
-bif 'erl.system.code':is_loaded/1 ebif_is_loaded_1 module_loaded_1
bif erlang:function_exported/3
-bif 'erl.system.code':is_loaded/3 ebif_is_loaded_3 function_exported_3
bif erlang:monitor_node/2
-bif 'erl.lang.node':monitor/2 ebif_monitor_node_2
bif erlang:monitor_node/3
-bif 'erl.lang.node':monitor/3 ebif_monitor_node_3
ubif erlang:node/1
-ubif 'erl.lang.node':node/1 ebif_node_1
ubif erlang:node/0
-ubif 'erl.lang.node':node/0 ebif_node_0
bif erlang:nodes/1
-bif 'erl.lang.node':nodes/1 ebif_nodes_1
bif erlang:now/0
-bif 'erl.system':now/0 ebif_now_0
bif erlang:open_port/2
-bif 'erl.lang.port':open/2 ebif_open_port_2 open_port_2
bif erlang:pid_to_list/1
-bif 'erl.lang.proc':pid_to_string/1 ebif_pid_to_string_1 pid_to_list_1
-bif erlang:port_info/1
-bif 'erl.lang.port':info/1 ebif_port_info_1
-bif erlang:port_info/2
-bif 'erl.lang.port':info/2 ebif_port_info_2
bif erlang:ports/0
-bif 'erl.lang.node':ports/0 ebif_ports_0
bif erlang:pre_loaded/0
-bif 'erl.system.code':preloaded/0 ebif_pre_loaded_0
bif erlang:process_flag/2
-bif 'erl.lang.proc':set_flag/2 ebif_process_flag_2
bif erlang:process_flag/3
-bif 'erl.lang.proc':set_flag/3 ebif_process_flag_3
bif erlang:process_info/1
-bif 'erl.lang.proc':info/1 ebif_process_info_1
bif erlang:process_info/2
-bif 'erl.lang.proc':info/2 ebif_process_info_2
bif erlang:processes/0
-bif 'erl.lang.node':processes/0 ebif_processes_0
bif erlang:purge_module/1
-bif 'erl.system.code':purge/1 ebif_purge_module_1
bif erlang:put/2
-bif 'erl.lang.proc.pdict':put/2 ebif_put_2
bif erlang:register/2
-bif 'erl.lang.node':register/2 ebif_register_2
bif erlang:registered/0
-bif 'erl.lang.node':registered/0 ebif_registered_0
ubif erlang:round/1
-ubif 'erl.lang.number':round/1 ebif_round_1
ubif erlang:self/0
-ubif 'erl.lang.proc':self/0 ebif_self_0
bif erlang:setelement/3
-bif 'erl.lang.tuple':setelement/3 ebif_setelement_3
ubif erlang:size/1
-ubif 'erl.lang.term':size/1 ebif_size_1
bif erlang:spawn/3
-bif 'erl.lang.proc':spawn/3 ebif_spawn_3
bif erlang:spawn_link/3
-bif 'erl.lang.proc':spawn_link/3 ebif_spawn_link_3
bif erlang:split_binary/2
-bif 'erl.lang.binary':split/2 ebif_split_binary_2
bif erlang:statistics/1
-bif 'erl.system':statistics/1 ebif_statistics_1
bif erlang:term_to_binary/1
-bif 'erl.lang.binary':from_term/1 ebif_term_to_binary_1
bif erlang:term_to_binary/2
-bif 'erl.lang.binary':from_term/2 ebif_term_to_binary_2
bif erlang:throw/1
-bif 'erl.lang':throw/1 ebif_throw_1
bif erlang:time/0
-bif 'erl.util.date':time_of_day/0 ebif_time_0
ubif erlang:tl/1
-ubif 'erl.lang.list':tl/1 ebif_tl_1
ubif erlang:trunc/1
-ubif 'erl.lang.number':trunc/1 ebif_trunc_1
bif erlang:tuple_to_list/1
-bif 'erl.lang.tuple':to_list/1 ebif_tuple_to_list_1
bif erlang:universaltime/0
-bif 'erl.util.date':utc/0 ebif_universaltime_0
bif erlang:universaltime_to_localtime/1
-bif 'erl.util.date':utc_to_local/1 ebif_universaltime_to_localtime_1
bif erlang:unlink/1
-bif 'erl.lang.proc':unlink/1 ebif_unlink_1
bif erlang:unregister/1
-bif 'erl.lang.node':unregister/1 ebif_unregister_1
bif erlang:whereis/1
-bif 'erl.lang.node':whereis/1 ebif_whereis_1
bif erlang:spawn_opt/1
-bif 'erl.lang.proc':spawn_opt/1 ebif_spawn_opt_1
bif erlang:setnode/2
bif erlang:setnode/3
bif erlang:dist_exit/3
-bif erlang:port_call/2
-bif 'erl.lang.port':call/2 ebif_port_call_2
-bif erlang:port_call/3
-bif 'erl.lang.port':call/3 ebif_port_call_3
-bif erlang:port_command/2
-bif 'erl.lang.port':command/2 ebif_port_command_2
-bif erlang:port_command/3
-bif 'erl.lang.port':command/3 ebif_port_command_3
-bif erlang:port_control/3
-bif 'erl.lang.port':control/3 ebif_port_control_3
-bif erlang:port_close/1
-bif 'erl.lang.port':close/1 ebif_port_close_1
-bif erlang:port_connect/2
-bif 'erl.lang.port':connect/2 ebif_port_connect_2
-bif erlang:port_set_data/2
-bif 'erl.lang.port':set_data/2 ebif_port_set_data_2
-bif erlang:port_get_data/1
-bif 'erl.lang.port':get_data/1 ebif_port_get_data_1
+# Static native functions in erts_internal
+bif erts_internal:port_info/1
+bif erts_internal:port_info/2
+bif erts_internal:port_call/3
+bif erts_internal:port_command/3
+bif erts_internal:port_control/3
+bif erts_internal:port_close/1
+bif erts_internal:port_connect/2
+bif erts_internal:port_set_data/2
+bif erts_internal:port_get_data/1
# Tracing & debugging.
bif erlang:trace_pattern/2
-bif 'erl.system.debug':trace_pattern/2 ebif_trace_pattern_2
bif erlang:trace_pattern/3
-bif 'erl.system.debug':trace_pattern/3 ebif_trace_pattern_3
bif erlang:trace/3
-bif 'erl.system.debug':trace/3 ebif_trace_3
bif erlang:trace_info/2
-bif 'erl.system.debug':trace_info/2 ebif_trace_info_2
bif erlang:trace_delivered/1
-bif 'erl.system.debug':trace_delivered/1 ebif_trace_delivered_1
bif erlang:seq_trace/2
-bif 'erl.system.debug':seq_trace/2 ebif_seq_trace_2
bif erlang:seq_trace_info/1
-bif 'erl.system.debug':seq_trace_info/1 ebif_seq_trace_info_1
bif erlang:seq_trace_print/1
-bif 'erl.system.debug':seq_trace_print/1 ebif_seq_trace_print_1
bif erlang:seq_trace_print/2
-bif 'erl.system.debug':seq_trace_print/2 ebif_seq_trace_print_2
bif erlang:suspend_process/2
-bif 'erl.system.debug':suspend_process/2 ebif_suspend_process_2
bif erlang:resume_process/1
-bif 'erl.system.debug':resume_process/1 ebif_resume_process_1
bif erlang:process_display/2
-bif 'erl.system.debug':process_display/2 ebif_process_display_2
bif erlang:bump_reductions/1
-bif 'erl.lang.proc':bump_reductions/1 ebif_bump_reductions_1
bif math:cos/1
-bif 'erl.lang.math':cos/1 ebif_math_cos_1
bif math:cosh/1
-bif 'erl.lang.math':cosh/1 ebif_math_cosh_1
bif math:sin/1
-bif 'erl.lang.math':sin/1 ebif_math_sin_1
bif math:sinh/1
-bif 'erl.lang.math':sinh/1 ebif_math_sinh_1
bif math:tan/1
-bif 'erl.lang.math':tan/1 ebif_math_tan_1
bif math:tanh/1
-bif 'erl.lang.math':tanh/1 ebif_math_tanh_1
bif math:acos/1
-bif 'erl.lang.math':acos/1 ebif_math_acos_1
bif math:acosh/1
-bif 'erl.lang.math':acosh/1 ebif_math_acosh_1
bif math:asin/1
-bif 'erl.lang.math':asin/1 ebif_math_asin_1
bif math:asinh/1
-bif 'erl.lang.math':asinh/1 ebif_math_asinh_1
bif math:atan/1
-bif 'erl.lang.math':atan/1 ebif_math_atan_1
bif math:atanh/1
-bif 'erl.lang.math':atanh/1 ebif_math_atanh_1
bif math:erf/1
-bif 'erl.lang.math':erf/1 ebif_math_erf_1
bif math:erfc/1
-bif 'erl.lang.math':erfc/1 ebif_math_erfc_1
bif math:exp/1
-bif 'erl.lang.math':exp/1 ebif_math_exp_1
bif math:log/1
-bif 'erl.lang.math':log/1 ebif_math_log_1
bif math:log10/1
-bif 'erl.lang.math':log10/1 ebif_math_log10_1
bif math:sqrt/1
-bif 'erl.lang.math':sqrt/1 ebif_math_sqrt_1
bif math:atan2/2
-bif 'erl.lang.math':atan2/2 ebif_math_atan2_2
bif math:pow/2
-bif 'erl.lang.math':pow/2 ebif_math_pow_2
bif erlang:start_timer/3
-bif 'erl.lang.timer':start/3 ebif_start_timer_3
bif erlang:send_after/3
-bif 'erl.lang.timer':send_after/3 ebif_send_after_3
bif erlang:cancel_timer/1
-bif 'erl.lang.timer':cancel/1 ebif_cancel_timer_1
bif erlang:read_timer/1
-bif 'erl.lang.timer':read/1 ebif_read_timer_1
bif erlang:make_tuple/2
-bif 'erl.lang.tuple':make/2 ebif_make_tuple_2
bif erlang:append_element/2
-bif 'erl.lang.tuple':append_element/2 ebif_append_element_2
bif erlang:make_tuple/3
bif erlang:system_flag/2
-bif 'erl.system':set_flag/2 ebif_system_flag_2
bif erlang:system_info/1
-bif 'erl.system':info/1 ebif_system_info_1
# New in R9C
bif erlang:system_monitor/0
-bif 'erl.system':monitor/0 ebif_system_monitor_0
bif erlang:system_monitor/1
-bif 'erl.system':monitor/1 ebif_system_monitor_1
bif erlang:system_monitor/2
-bif 'erl.system':monitor/2 ebif_system_monitor_2
# Added 2006-11-07
bif erlang:system_profile/2
-bif 'erl.system':profile/2 ebif_system_profile_2
# End Added 2006-11-07
# Added 2007-01-17
bif erlang:system_profile/0
-bif 'erl.system':profile/0 ebif_system_profile_0
# End Added 2007-01-17
bif erlang:ref_to_list/1
-bif 'erl.lang.ref':to_string/1 ebif_ref_to_string_1 ref_to_list_1
bif erlang:port_to_list/1
-bif 'erl.lang.port':to_string/1 ebif_port_to_string_1 port_to_list_1
bif erlang:fun_to_list/1
-bif 'erl.lang.function':to_string/1 ebif_fun_to_string_1 fun_to_list_1
bif erlang:monitor/2
-bif 'erl.lang.proc':monitor/2 ebif_monitor_2
bif erlang:demonitor/1
-bif 'erl.lang.proc':demonitor/1 ebif_demonitor_1
bif erlang:demonitor/2
-bif 'erl.lang.proc':demonitor/2 ebif_demonitor_2
bif erlang:is_process_alive/1
-bif 'erl.lang.proc':is_alive/1 ebif_proc_is_alive_1 is_process_alive_1
bif erlang:error/1 error_1
-bif 'erl.lang':error/1 ebif_error_1 error_1
bif erlang:error/2 error_2
-bif 'erl.lang':error/2 ebif_error_2 error_2
bif erlang:raise/3 raise_3
-bif 'erl.lang':raise/3 ebif_raise_3 raise_3
bif erlang:get_stacktrace/0
-bif 'erl.lang.proc':get_stacktrace/0 ebif_get_stacktrace_0
bif erlang:is_builtin/3
-bif 'erl.system.code':is_builtin/3 ebif_is_builtin_3
ubif erlang:'and'/2
-ubif 'erl.lang.bool':'and'/2 ebif_and_2
ubif erlang:'or'/2
-ubif 'erl.lang.bool':'or'/2 ebif_or_2
ubif erlang:'xor'/2
-ubif 'erl.lang.bool':'xor'/2 ebif_xor_2
ubif erlang:'not'/1
-ubif 'erl.lang.bool':'not'/1 ebif_not_1
ubif erlang:'>'/2 sgt_2
-ubif 'erl.lang.term':greater/2 ebif_gt_2 sgt_2
ubif erlang:'>='/2 sge_2
-ubif 'erl.lang.term':greater_or_equal/2 ebif_ge_2 sge_2
ubif erlang:'<'/2 slt_2
-ubif 'erl.lang.term':less/2 ebif_lt_2 slt_2
ubif erlang:'=<'/2 sle_2
-ubif 'erl.lang.term':less_or_equal/2 ebif_le_2 sle_2
ubif erlang:'=:='/2 seq_2
-ubif 'erl.lang.term':equal/2 ebif_eq_2 seq_2
ubif erlang:'=='/2 seqeq_2
-ubif 'erl.lang.term':arith_equal/2 ebif_areq_2 seqeq_2
ubif erlang:'=/='/2 sneq_2
-ubif 'erl.lang.term':not_equal/2 ebif_neq_2 sneq_2
ubif erlang:'/='/2 sneqeq_2
-ubif 'erl.lang.term':not_arith_equal/2 ebif_nareq_2 sneqeq_2
ubif erlang:'+'/2 splus_2
-ubif 'erl.lang.number':plus/2 ebif_plus_2 splus_2
ubif erlang:'-'/2 sminus_2
-ubif 'erl.lang.number':minus/2 ebif_minus_2 sminus_2
ubif erlang:'*'/2 stimes_2
-ubif 'erl.lang.number':multiply/2 ebif_multiply_2 stimes_2
ubif erlang:'/'/2 div_2
-ubif 'erl.lang.number':divide/2 ebif_divide_2 div_2
ubif erlang:'div'/2 intdiv_2
-ubif 'erl.lang.integer':'div'/2 ebif_intdiv_2
ubif erlang:'rem'/2
-ubif 'erl.lang.integer':'rem'/2 ebif_rem_2
ubif erlang:'bor'/2
-ubif 'erl.lang.integer':'bor'/2 ebif_bor_2
ubif erlang:'band'/2
-ubif 'erl.lang.integer':'band'/2 ebif_band_2
ubif erlang:'bxor'/2
-ubif 'erl.lang.integer':'bxor'/2 ebif_bxor_2
ubif erlang:'bsl'/2
-ubif 'erl.lang.integer':'bsl'/2 ebif_bsl_2
ubif erlang:'bsr'/2
-ubif 'erl.lang.integer':'bsr'/2 ebif_bsr_2
ubif erlang:'bnot'/1
-ubif 'erl.lang.integer':'bnot'/1 ebif_bnot_1
ubif erlang:'-'/1 sminus_1
-ubif 'erl.lang.number':minus/1 ebif_minus_1 sminus_1
ubif erlang:'+'/1 splus_1
-ubif 'erl.lang.number':plus/1 ebif_plus_1 splus_1
# New operators in R8. These were the only operators missing.
# erlang:send/2, erlang:append/2 and erlang:subtract/2 are now also
@@ -466,45 +265,27 @@ ubif 'erl.lang.number':plus/1 ebif_plus_1 splus_1
# internal references have been updated to the new ebif_... entries.
bif erlang:'!'/2 ebif_bang_2
-bif 'erl.lang.proc':send/2 ebif_send_2 send_2
bif erlang:send/2
-bif 'erl.lang':send/3 ebif_send_3 send_3
bif erlang:send/3
bif erlang:'++'/2 ebif_plusplus_2
-bif 'erl.lang.list':append/2 ebif_append_2 ebif_plusplus_2
bif erlang:append/2
bif erlang:'--'/2 ebif_minusminus_2
-bif 'erl.lang.list':subtract/2 ebif_list_subtract_2 ebif_minusminus_2
bif erlang:subtract/2
ubif erlang:is_atom/1
-ubif 'erl.lang.term':is_atom/1 ebif_is_atom_1
ubif erlang:is_list/1
-ubif 'erl.lang.term':is_list/1 ebif_is_list_1
ubif erlang:is_tuple/1
-ubif 'erl.lang.term':is_tuple/1 ebif_is_tuple_1
ubif erlang:is_float/1
-ubif 'erl.lang.term':is_float/1 ebif_is_float_1
ubif erlang:is_integer/1
-ubif 'erl.lang.term':is_integer/1 ebif_is_integer_1
ubif erlang:is_number/1
-ubif 'erl.lang.term':is_number/1 ebif_is_number_1
ubif erlang:is_pid/1
-ubif 'erl.lang.term':is_pid/1 ebif_is_pid_1
ubif erlang:is_port/1
-ubif 'erl.lang.term':is_port/1 ebif_is_port_1
ubif erlang:is_reference/1
-ubif 'erl.lang.term':is_reference/1 ebif_is_reference_1
ubif erlang:is_binary/1
-ubif 'erl.lang.term':is_binary/1 ebif_is_binary_1
ubif erlang:is_function/1
-ubif 'erl.lang.term':is_function/1 ebif_is_function_1
ubif erlang:is_function/2
-ubif 'erl.lang.term':is_function/2 ebif_is_function_2
ubif erlang:is_record/2
-ubif 'erl.lang.term':is_record/2 ebif_is_record_2
ubif erlang:is_record/3
-ubif 'erl.lang.term':is_record/3 ebif_is_record_3
bif erlang:match_spec_test/3
@@ -513,96 +294,53 @@ bif erlang:match_spec_test/3
#
bif ets:all/0
-bif 'erl.lang.ets':all/0 ebif_ets_all_0
bif ets:new/2
-bif 'erl.lang.ets':new/2 ebif_ets_new_2
bif ets:delete/1
-bif 'erl.lang.ets':delete/1 ebif_ets_delete_1
bif ets:delete/2
-bif 'erl.lang.ets':delete/2 ebif_ets_delete_2
bif ets:delete_all_objects/1
-bif 'erl.lang.ets':delete_all_objects/1 ebif_ets_delete_all_objects_1
bif ets:delete_object/2
-bif 'erl.lang.ets':delete_object/2 ebif_ets_delete_object_2
bif ets:first/1
-bif 'erl.lang.ets':first/1 ebif_ets_first_1
bif ets:is_compiled_ms/1
-bif 'erl.lang.ets':is_compiled_ms/1 ebif_ets_is_compiled_ms_1
bif ets:lookup/2
-bif 'erl.lang.ets':lookup/2 ebif_ets_lookup_2
bif ets:lookup_element/3
-bif 'erl.lang.ets':lookup_element/3 ebif_ets_lookup_element_3
bif ets:info/1
-bif 'erl.lang.ets':info/1 ebif_ets_info_1
bif ets:info/2
-bif 'erl.lang.ets':info/2 ebif_ets_info_2
bif ets:last/1
-bif 'erl.lang.ets':last/1 ebif_ets_last_1
bif ets:match/1
-bif 'erl.lang.ets':match/1 ebif_ets_match_1
bif ets:match/2
-bif 'erl.lang.ets':match/2 ebif_ets_match_2
bif ets:match/3
-bif 'erl.lang.ets':match/3 ebif_ets_match_3
bif ets:match_object/1
-bif 'erl.lang.ets':match_object/1 ebif_ets_match_object_1
bif ets:match_object/2
-bif 'erl.lang.ets':match_object/2 ebif_ets_match_object_2
bif ets:match_object/3
-bif 'erl.lang.ets':match_object/3 ebif_ets_match_object_3
bif ets:member/2
-bif 'erl.lang.ets':is_key/2 ebif_ets_member_2
bif ets:next/2
-bif 'erl.lang.ets':next/2 ebif_ets_next_2
bif ets:prev/2
-bif 'erl.lang.ets':prev/2 ebif_ets_prev_2
bif ets:insert/2
-bif 'erl.lang.ets':insert/2 ebif_ets_insert_2
bif ets:insert_new/2
-bif 'erl.lang.ets':insert_new/2 ebif_ets_insert_new_2
bif ets:rename/2
-bif 'erl.lang.ets':rename/2 ebif_ets_rename_2
bif ets:safe_fixtable/2
-bif 'erl.lang.ets':fixtable/2 ebif_ets_safe_fixtable_2
bif ets:slot/2
-bif 'erl.lang.ets':slot/2 ebif_ets_slot_2
bif ets:update_counter/3
-bif 'erl.lang.ets':update_counter/3 ebif_ets_update_counter_3
bif ets:select/1
-bif 'erl.lang.ets':select/1 ebif_ets_select_1
bif ets:select/2
-bif 'erl.lang.ets':select/2 ebif_ets_select_2
bif ets:select/3
-bif 'erl.lang.ets':select/3 ebif_ets_select_3
bif ets:select_count/2
-bif 'erl.lang.ets':select/2 ebif_ets_select_count_2
bif ets:select_reverse/1
-bif 'erl.lang.ets':select_reverse/1 ebif_ets_select_reverse_1
bif ets:select_reverse/2
-bif 'erl.lang.ets':select_reverse/2 ebif_ets_select_reverse_2
bif ets:select_reverse/3
-bif 'erl.lang.ets':select_reverse/3 ebif_ets_select_reverse_3
bif ets:select_delete/2
-bif 'erl.lang.ets':select_delete/2 ebif_ets_select_delete_2
bif ets:match_spec_compile/1
-bif 'erl.lang.ets':match_spec_compile/1 ebif_ets_match_spec_compile_1
bif ets:match_spec_run_r/3
-bif 'erl.lang.ets':match_spec_run_r/3 ebif_ets_match_spec_run_r_3
#
# Bifs in os module.
#
bif os:putenv/2
-bif 'erl.system.os':setenv/2 ebif_os_setenv_2 os_putenv_2
bif os:getenv/0
-bif 'erl.system.os':getenv/0 ebif_os_getenv_0
bif os:getenv/1
-bif 'erl.system.os':getenv/1 ebif_os_getenv_1
bif os:getpid/0
-bif 'erl.system.os':pid/0 ebif_os_pid_0 os_getpid_0
bif os:timestamp/0
-bif 'erl.system.os':timestamp/0 ebif_os_timestamp_0 os_timestamp_0
#
# Bifs in the erl_ddll module (the module actually does not exist)
@@ -629,13 +367,9 @@ bif re:run/3
#
bif lists:member/2
-bif 'erl.lang.list':is_element/2 ebif_list_is_element_2 lists_member_2
bif lists:reverse/2
-bif 'erl.lang.list':reverse/2 ebif_list_reverse_2 lists_reverse_2
bif lists:keymember/3
-bif 'erl.lang.list.keylist':is_element/3 ebif_keylist_is_element_3 lists_keymember_3
bif lists:keysearch/3
-bif 'erl.lang.list.keylist':search/3 ebif_keylist_search_3 lists_keysearch_3
bif lists:keyfind/3
#
@@ -643,21 +377,13 @@ bif lists:keyfind/3
#
bif erts_debug:disassemble/1
-bif 'erl.system.debug':disassemble/1 ebif_erts_debug_disassemble_1
bif erts_debug:breakpoint/2
-bif 'erl.system.debug':breakpoint/2 ebif_erts_debug_breakpoint_2
bif erts_debug:same/2
-bif 'erl.system.debug':same/2 ebif_erts_debug_same_2
bif erts_debug:flat_size/1
-bif 'erl.system.debug':flat_size/1 ebif_erts_debug_flat_size_1
bif erts_debug:get_internal_state/1
-bif 'erl.system.debug':get_internal_state/1 ebif_erts_debug_get_internal_state_1
bif erts_debug:set_internal_state/2
-bif 'erl.system.debug':set_internal_state/2 ebif_erts_debug_set_internal_state_2
bif erts_debug:display/1
-bif 'erl.system.debug':display/1 ebif_erts_debug_display_1
bif erts_debug:dist_ext_to_term/2
-bif 'erl.system.debug':dist_ext_to_term/2 ebif_erts_debug_dist_ext_to_term_2
bif erts_debug:instructions/0
#
@@ -677,13 +403,9 @@ bif erts_debug:lock_counters/1
#
bif code:get_chunk/2
-bif 'erl.system.code':get_chunk/2 ebif_code_get_chunk_2
bif code:module_md5/1
-bif 'erl.system.code':module_md5/1 ebif_code_module_md5_1
bif code:make_stub_module/3
-bif 'erl.system.code':make_stub_module/3 ebif_code_make_stub_module_3
bif code:is_module_native/1
-bif 'erl.system.code':is_native/1 ebif_code_is_native_1 code_is_module_native_1
#
# New Bifs in R9C.
@@ -829,6 +551,15 @@ bif erlang:dt_restore_tag/1
bif erlang:dt_prepend_vm_tag_data/1
bif erlang:dt_append_vm_tag_data/1
+
+#
+# New in R16B.
+#
+bif erlang:prepare_loading/2
+bif erlang:finish_loading/1
+bif erlang:insert_element/3
+bif erlang:delete_element/2
+
#
# Obsolete
#
diff --git a/erts/emulator/beam/binary.c b/erts/emulator/beam/binary.c
index 3d2725e239..4441dab181 100644
--- a/erts/emulator/beam/binary.c
+++ b/erts/emulator/beam/binary.c
@@ -355,10 +355,10 @@ BIF_RETTYPE bitstring_to_list_1(BIF_ALIST_1)
BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg)
{
Eterm bin;
- Uint size;
+ ErlDrvSizeT size;
byte* bytes;
#ifdef DEBUG
- int offset;
+ ErlDrvSizeT offset;
#endif
if (is_nil(arg)) {
@@ -377,7 +377,7 @@ BIF_RETTYPE erts_list_to_binary_bif(Process *p, Eterm arg)
#ifdef DEBUG
offset =
#endif
- io_list_to_buf(arg, (char*) bytes, size);
+ erts_iolist_to_buf(arg, (char*) bytes, size);
ASSERT(offset == 0);
BIF_RET(bin);
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index f7e9f15655..9aa1e5f30d 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -61,19 +61,23 @@ extern char* erts_system_version[];
static void
port_info(int to, void *to_arg)
{
- int i;
- for (i = 0; i < erts_max_ports; i++)
- print_port_info(to, to_arg, i);
+ int i, max = erts_ptab_max(&erts_port);
+ for (i = 0; i < max; i++) {
+ Port *p = erts_pix2port(i);
+ if (p)
+ print_port_info(p, to, to_arg);
+ }
}
void
process_info(int to, void *to_arg)
{
- int i;
- for (i = 0; i < erts_max_processes; i++) {
- if ((process_tab[i] != NULL) && (process_tab[i]->i != ENULL)) {
- if (process_tab[i]->status != P_EXITING)
- print_process_info(to, to_arg, process_tab[i]);
+ int i, max = erts_ptab_max(&erts_proc);
+ for (i = 0; i < max; i++) {
+ Process *p = erts_pix2proc(i);
+ if (p && p->i != ENULL) {
+ if (!ERTS_PROC_IS_EXITING(p))
+ print_process_info(to, to_arg, p);
}
}
@@ -83,13 +87,14 @@ process_info(int to, void *to_arg)
static void
process_killer(void)
{
- int i, j;
+ int i, j, max = erts_ptab_max(&erts_proc);
Process* rp;
erts_printf("\n\nProcess Information\n\n");
erts_printf("--------------------------------------------------\n");
- for (i = erts_max_processes-1; i >= 0; i--) {
- if (((rp = process_tab[i]) != NULL) && rp->i != ENULL) {
+ for (i = max-1; i >= 0; i--) {
+ rp = erts_pix2proc(i);
+ if (rp && rp->i != ENULL) {
int br;
print_process_info(ERTS_PRINT_STDOUT, NULL, rp);
erts_printf("(k)ill (n)ext (r)eturn:\n");
@@ -97,11 +102,20 @@ process_killer(void)
if ((j = sys_get_key(0)) <= 0)
erl_exit(0, "");
switch(j) {
- case 'k':
- if (rp->status == P_WAITING) {
- ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- erts_smp_proc_inc_refc(rp);
- erts_smp_proc_lock(rp, rp_locks);
+ case 'k': {
+ ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
+ erts_aint32_t state;
+ erts_smp_proc_inc_refc(rp);
+ erts_smp_proc_lock(rp, rp_locks);
+ state = erts_smp_atomic32_read_acqb(&rp->state);
+ if (state & (ERTS_PSFLG_FREE
+ | ERTS_PSFLG_EXITING
+ | ERTS_PSFLG_ACTIVE
+ | ERTS_PSFLG_IN_RUNQ
+ | ERTS_PSFLG_RUNNING)) {
+ erts_printf("Can only kill WAITING processes this way\n");
+ }
+ else {
(void) erts_send_exit_signal(NULL,
NIL,
rp,
@@ -110,12 +124,10 @@ process_killer(void)
NIL,
NULL,
0);
- erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
- else
- erts_printf("Can only kill WAITING processes this way\n");
-
+ erts_smp_proc_unlock(rp, rp_locks);
+ erts_smp_proc_dec_refc(rp);
+ }
case 'n': br = 1; break;
case 'r': return;
default: return;
@@ -180,49 +192,45 @@ static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext)
void
print_process_info(int to, void *to_arg, Process *p)
{
+ time_t approx_started;
int garbing = 0;
int running = 0;
- time_t tmp_t;
struct saved_calls *scb;
+ erts_aint32_t state;
/* display the PID */
- erts_print(to, to_arg, "=proc:%T\n", p->id);
+ erts_print(to, to_arg, "=proc:%T\n", p->common.id);
/* Display the state */
erts_print(to, to_arg, "State: ");
- switch (p->status) {
- case P_FREE:
+
+ state = erts_smp_atomic32_read_acqb(&p->state);
+ if (state & ERTS_PSFLG_FREE)
erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */
- break;
- case P_RUNABLE:
- erts_print(to, to_arg, "Scheduled\n");
- break;
- case P_WAITING:
- erts_print(to, to_arg, "Waiting\n");
- break;
- case P_SUSPENDED:
- erts_print(to, to_arg, "Suspended\n");
- break;
- case P_RUNNING:
- erts_print(to, to_arg, "Running\n");
- running = 1;
- break;
- case P_EXITING:
+ else if (state & ERTS_PSFLG_EXITING)
erts_print(to, to_arg, "Exiting\n");
- break;
- case P_GARBING:
- erts_print(to, to_arg, "Garbing\n");
+ else if (state & ERTS_PSFLG_GC) {
garbing = 1;
running = 1;
- break;
+ erts_print(to, to_arg, "Garbing\n");
+ }
+ else if (state & ERTS_PSFLG_SUSPENDED)
+ erts_print(to, to_arg, "Suspended\n");
+ else if (state & ERTS_PSFLG_RUNNING) {
+ running = 1;
+ erts_print(to, to_arg, "Running\n");
}
+ else if (state & ERTS_PSFLG_ACTIVE)
+ erts_print(to, to_arg, "Scheduled\n");
+ else
+ erts_print(to, to_arg, "Waiting\n");
/*
* If the process is registered as a global process, display the
* registered name
*/
- if (p->reg != NULL)
- erts_print(to, to_arg, "Name: %T\n", p->reg->name);
+ if (p->common.u.alive.reg)
+ erts_print(to, to_arg, "Name: %T\n", p->common.u.alive.reg->name);
/*
* Display the initial function name
@@ -245,8 +253,8 @@ print_process_info(int to, void *to_arg, Process *p)
}
erts_print(to, to_arg, "Spawned by: %T\n", p->parent);
- tmp_t = p->started.tv_sec;
- erts_print(to, to_arg, "Started: %s", ctime(&tmp_t));
+ approx_started = (time_t) p->approx_started;
+ erts_print(to, to_arg, "Started: %s", ctime(&approx_started));
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p);
erts_print(to, to_arg, "Message queue length: %d\n", p->msg.len);
@@ -296,11 +304,11 @@ print_process_info(int to, void *to_arg, Process *p)
}
/* display the links only if there are any*/
- if (p->nlinks != NULL || p->monitors != NULL) {
+ if (ERTS_P_LINKS(p) || ERTS_P_MONITORS(p)) {
PrintMonitorContext context = {1,to};
erts_print(to, to_arg,"Link list: [");
- erts_doforall_links(p->nlinks, &doit_print_link, &context);
- erts_doforall_monitors(p->monitors, &doit_print_monitor, &context);
+ erts_doforall_links(ERTS_P_LINKS(p), &doit_print_link, &context);
+ erts_doforall_monitors(ERTS_P_MONITORS(p), &doit_print_monitor, &context);
erts_print(to, to_arg,"]\n");
}
@@ -377,17 +385,22 @@ loaded(int to, void *to_arg)
int old = 0;
int cur = 0;
BeamInstr* code;
+ Module* modp;
+ ErtsCodeIndex code_ix;
+
+ code_ix = erts_active_code_ix();
+ erts_rlock_old_code(code_ix);
/*
* Calculate and print totals.
*/
- for (i = 0; i < module_code_size(); i++) {
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
- cur += module_code(i)->code_length;
- if (module_code(i)->old_code_length != 0) {
- old += module_code(i)->old_code_length;
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ if ((modp = module_code(i, code_ix)) != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
+ cur += modp->curr.code_length;
+ if (modp->old.code_length != 0) {
+ old += modp->old.code_length;
}
}
}
@@ -398,21 +411,22 @@ loaded(int to, void *to_arg)
* Print one line per module.
*/
- for (i = 0; i < module_code_size(); i++) {
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ modp = module_code(i, code_ix);
if (!ERTS_IS_CRASH_DUMPING) {
/*
* Interactive dump; keep it brief.
*/
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
- erts_print(to, to_arg, "%T", make_atom(module_code(i)->module));
- cur += module_code(i)->code_length;
- erts_print(to, to_arg, " %d", module_code(i)->code_length );
- if (module_code(i)->old_code_length != 0) {
+ if (modp != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
+ erts_print(to, to_arg, "%T", make_atom(modp->module));
+ cur += modp->curr.code_length;
+ erts_print(to, to_arg, " %d", modp->curr.code_length );
+ if (modp->old.code_length != 0) {
erts_print(to, to_arg, " (%d old)",
- module_code(i)->old_code_length );
- old += module_code(i)->old_code_length;
+ modp->old.code_length );
+ old += modp->old.code_length;
}
erts_print(to, to_arg, "\n");
}
@@ -420,15 +434,15 @@ loaded(int to, void *to_arg)
/*
* To crash dump; make it parseable.
*/
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
+ if (modp != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
erts_print(to, to_arg, "=mod:");
- erts_print(to, to_arg, "%T", make_atom(module_code(i)->module));
+ erts_print(to, to_arg, "%T", make_atom(modp->module));
erts_print(to, to_arg, "\n");
erts_print(to, to_arg, "Current size: %d\n",
- module_code(i)->code_length);
- code = module_code(i)->code;
+ modp->curr.code_length);
+ code = modp->curr.code;
if (code != NULL && code[MI_ATTR_PTR]) {
erts_print(to, to_arg, "Current attributes: ");
dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR],
@@ -440,9 +454,9 @@ loaded(int to, void *to_arg)
code[MI_COMPILE_SIZE]);
}
- if (module_code(i)->old_code_length != 0) {
- erts_print(to, to_arg, "Old size: %d\n", module_code(i)->old_code_length);
- code = module_code(i)->old_code;
+ if (modp->old.code_length != 0) {
+ erts_print(to, to_arg, "Old size: %d\n", modp->old.code_length);
+ code = modp->old.code;
if (code[MI_ATTR_PTR]) {
erts_print(to, to_arg, "Old attributes: ");
dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR],
@@ -457,6 +471,7 @@ loaded(int to, void *to_arg)
}
}
}
+ erts_runlock_old_code(code_ix);
}
@@ -613,16 +628,17 @@ bin_check(void)
{
Process *rp;
struct erl_off_heap_header* hdr;
- int i, printed = 0;
+ int i, printed = 0, max = erts_ptab_max(&erts_proc);
- for (i=0; i < erts_max_processes; i++) {
- if ((rp = process_tab[i]) == NULL)
+ for (i=0; i < max; i++) {
+ rp = erts_pix2proc(i);
+ if (!rp)
continue;
for (hdr = rp->off_heap.first; hdr; hdr = hdr->next) {
if (hdr->thing_word == HEADER_PROC_BIN) {
ProcBin *bp = (ProcBin*) hdr;
if (!printed) {
- erts_printf("Process %T holding binary data \n", rp->id);
+ erts_printf("Process %T holding binary data \n", rp->common.id);
printed = 1;
}
erts_printf("%p orig_size: %bpd, norefs = %bpd\n",
@@ -753,7 +769,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
erts_print_nif_taints(fd, NULL);
erts_fdprintf(fd, "Atoms: %d\n", atom_table_size());
info(fd, NULL); /* General system info */
- if (process_tab != NULL) /* XXX true at init */
+ if (erts_ptab_initialized(&erts_proc))
process_info(fd, NULL); /* Info about each process and port */
db_info(fd, NULL, 0);
erts_print_bif_timer_info(fd, NULL);
diff --git a/erts/emulator/beam/code_ix.c b/erts/emulator/beam/code_ix.c
new file mode 100644
index 0000000000..c66d5a2f05
--- /dev/null
+++ b/erts/emulator/beam/code_ix.c
@@ -0,0 +1,168 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "code_ix.h"
+#include "global.h"
+#include "beam_catches.h"
+
+
+
+#if 0
+# define CIX_TRACE(text) erts_fprintf(stderr, "CIX_TRACE: " text " act=%u load=%u\r\n", erts_active_code_ix(), erts_staging_code_ix())
+#else
+# define CIX_TRACE(text)
+#endif
+
+erts_smp_atomic32_t the_active_code_index;
+erts_smp_atomic32_t the_staging_code_index;
+
+static Process* code_writing_process = NULL;
+struct code_write_queue_item {
+ Process *p;
+ struct code_write_queue_item* next;
+};
+static struct code_write_queue_item* code_write_queue = NULL;
+static erts_smp_mtx_t code_write_permission_mtx;
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+static erts_tsd_key_t has_code_write_permission;
+#endif
+
+void erts_code_ix_init(void)
+{
+ /* We start emulator by initializing preloaded modules
+ * single threaded with active and staging set both to zero.
+ * Preloading is finished by a commit that will set things straight.
+ */
+ erts_smp_atomic32_init_nob(&the_active_code_index, 0);
+ erts_smp_atomic32_init_nob(&the_staging_code_index, 0);
+ erts_smp_mtx_init(&code_write_permission_mtx, "code_write_permission");
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_tsd_key_create(&has_code_write_permission);
+#endif
+ CIX_TRACE("init");
+}
+
+void erts_start_staging_code_ix(void)
+{
+ beam_catches_start_staging();
+ export_start_staging();
+ module_start_staging();
+ erts_start_staging_ranges();
+ CIX_TRACE("start");
+}
+
+
+void erts_end_staging_code_ix(void)
+{
+ beam_catches_end_staging(1);
+ export_end_staging(1);
+ module_end_staging(1);
+ erts_end_staging_ranges(1);
+ CIX_TRACE("end");
+}
+
+void erts_commit_staging_code_ix(void)
+{
+ ErtsCodeIndex ix;
+ /* We need to this lock as we are now making the staging export table active */
+ export_staging_lock();
+ ix = erts_staging_code_ix();
+ erts_smp_atomic32_set_nob(&the_active_code_index, ix);
+ ix = (ix + 1) % ERTS_NUM_CODE_IX;
+ erts_smp_atomic32_set_nob(&the_staging_code_index, ix);
+ export_staging_unlock();
+ CIX_TRACE("activate");
+}
+
+void erts_abort_staging_code_ix(void)
+{
+ beam_catches_end_staging(0);
+ export_end_staging(0);
+ module_end_staging(0);
+ erts_end_staging_ranges(0);
+ CIX_TRACE("abort");
+}
+
+
+/*
+ * Calller _must_ yield if we return 0
+ */
+int erts_try_seize_code_write_permission(Process* c_p)
+{
+ int success;
+#ifdef ERTS_SMP
+ ASSERT(!erts_smp_thr_progress_is_blocking()); /* to avoid deadlock */
+#endif
+ ASSERT(c_p != NULL);
+
+ erts_smp_mtx_lock(&code_write_permission_mtx);
+ success = (code_writing_process == NULL);
+ if (success) {
+ code_writing_process = c_p;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_tsd_set(has_code_write_permission, (void *) 1);
+#endif
+ }
+ else { /* Already locked */
+ struct code_write_queue_item* qitem;
+ ASSERT(code_writing_process != c_p);
+ qitem = erts_alloc(ERTS_ALC_T_CODE_IX_LOCK_Q, sizeof(*qitem));
+ qitem->p = c_p;
+ erts_smp_proc_inc_refc(c_p);
+ qitem->next = code_write_queue;
+ code_write_queue = qitem;
+ erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
+ }
+ erts_smp_mtx_unlock(&code_write_permission_mtx);
+ return success;
+}
+
+void erts_release_code_write_permission(void)
+{
+ erts_smp_mtx_lock(&code_write_permission_mtx);
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission());
+ while (code_write_queue != NULL) { /* unleash the entire herd */
+ struct code_write_queue_item* qitem = code_write_queue;
+ erts_smp_proc_lock(qitem->p, ERTS_PROC_LOCK_STATUS);
+ if (!ERTS_PROC_IS_EXITING(qitem->p)) {
+ erts_resume(qitem->p, ERTS_PROC_LOCK_STATUS);
+ }
+ erts_smp_proc_unlock(qitem->p, ERTS_PROC_LOCK_STATUS);
+ code_write_queue = qitem->next;
+ erts_smp_proc_dec_refc(qitem->p);
+ erts_free(ERTS_ALC_T_CODE_IX_LOCK_Q, qitem);
+ }
+ code_writing_process = NULL;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_tsd_set(has_code_write_permission, (void *) 0);
+#endif
+ erts_smp_mtx_unlock(&code_write_permission_mtx);
+}
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+int erts_has_code_write_permission(void)
+{
+ return (code_writing_process != NULL) && erts_tsd_get(has_code_write_permission);
+}
+#endif
diff --git a/erts/emulator/beam/code_ix.h b/erts/emulator/beam/code_ix.h
new file mode 100644
index 0000000000..e2bd0da112
--- /dev/null
+++ b/erts/emulator/beam/code_ix.h
@@ -0,0 +1,141 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+/* Description:
+ * This is the interface that facilitates changing the beam code
+ * (load,upgrade,delete) while allowing executing Erlang processes to
+ * access the code without any locks or other expensive memory barriers.
+ *
+ * The basic idea is to maintain several "logical copies" of the code. These
+ * copies are identified by a global 'code index', an integer of 0, 1 or 2.
+ * The code index is used as argument to code access structures like
+ * export, module, beam_catches, beam_ranges.
+ *
+ * The current 'active' code index is used to access the current running
+ * code. The 'staging' code index is used by the process that performs
+ * a code change operation. When a code change operation completes
+ * succesfully, the staging code index becomes the new active code index.
+ *
+ * The third code index is not explicitly used. It can be thought of as
+ * the "previous active" or the "next staging" index. It is needed to make
+ * sure that we do not reuse a code index for staging until we are sure
+ * that no executing BIFs are still referencing it.
+ * We could get by with only two (0 and 1), but that would require that we
+ * must wait for all schedulers to re-schedule before each code change
+ * operation can start staging.
+ *
+ * Note that the 'code index' is very loosely coupled to the concept of
+ * 'current' and 'old' module versions. You can almost say that they are
+ * orthogonal to each other. Code index is an emulator global concept while
+ * 'current' and 'old' is specific for each module.
+ */
+
+#ifndef __CODE_IX_H__
+#define __CODE_IX_H__
+
+#ifndef __SYS_H__
+# ifdef HAVE_CONFIG_H
+# include "config.h"
+# endif
+# include "sys.h"
+#endif
+struct process;
+
+
+#define ERTS_NUM_CODE_IX 3
+typedef unsigned ErtsCodeIndex;
+
+
+/* Called once at emulator initialization.
+ */
+void erts_code_ix_init(void);
+
+/* Return active code index.
+ * Is guaranteed to be valid until the calling BIF returns.
+ * To get a consistent view of the code, only one call to erts_active_code_ix()
+ * should be made and the returned ix reused within the same BIF call.
+ */
+ERTS_GLB_INLINE
+ErtsCodeIndex erts_active_code_ix(void);
+
+/* Return staging code ix.
+ * Only used by a process performing code loading/upgrading/deleting/purging.
+ * code_ix must be locked.
+ */
+ERTS_GLB_INLINE
+ErtsCodeIndex erts_staging_code_ix(void);
+
+/* Try seize exclusive code write permission. Needed for code staging.
+ * Main process lock (only) must be held.
+ * System thread progress must not be blocked.
+ * Caller is suspended and *must* yield if 0 is returned.
+ */
+int erts_try_seize_code_write_permission(struct process*);
+
+/* Release code write permission.
+ * Will resume any suspended waiters.
+ */
+void erts_release_code_write_permission(void);
+
+/* Prepare the "staging area" to be a complete copy of the active code.
+ * Code write permission must have been seized.
+ * Must be followed by calls to either "end" and "commit" or "abort" before
+ * code write permission can be released.
+ */
+void erts_start_staging_code_ix(void);
+
+/* End the staging.
+ * Preceded by "start" and must be followed by "commit".
+ */
+void erts_end_staging_code_ix(void);
+
+/* Set staging code index as new active code index.
+ * Preceded by "end".
+ */
+void erts_commit_staging_code_ix(void);
+
+/* Abort the staging.
+ * Preceded by "start".
+ */
+void erts_abort_staging_code_ix(void);
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+int erts_has_code_write_permission(void);
+#endif
+
+
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+extern erts_smp_atomic32_t the_active_code_index;
+extern erts_smp_atomic32_t the_staging_code_index;
+
+ERTS_GLB_INLINE ErtsCodeIndex erts_active_code_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&the_active_code_index);
+}
+ERTS_GLB_INLINE ErtsCodeIndex erts_staging_code_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&the_staging_code_index);
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#endif /* !__CODE_IX_H__ */
+
diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c
index 36eda04de2..23c0fca6aa 100644
--- a/erts/emulator/beam/copy.c
+++ b/erts/emulator/beam/copy.c
@@ -47,7 +47,7 @@ copy_object(Eterm obj, Process* to)
if (DTRACE_ENABLED(copy_object)) {
DTRACE_CHARBUF(proc_name, 64);
- erts_snprintf(proc_name, sizeof(proc_name), "%T", to->id);
+ erts_snprintf(proc_name, sizeof(proc_name), "%T", to->common.id);
DTRACE2(copy_object, proc_name, size);
}
#endif
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index 025258e8de..64cd93a100 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -67,7 +67,7 @@ dist_msg_dbg(ErtsDistExternal *edep, char *what, byte *buf, int sz)
{
byte *extp = edep->extp;
Eterm msg;
- Sint size = erts_decode_dist_ext_size(edep, 0);
+ Sint size = erts_decode_dist_ext_size(edep);
if (size < 0) {
erts_fprintf(stderr,
"DIST MSG DEBUG: erts_decode_dist_ext_size(%s) failed:\n",
@@ -124,6 +124,13 @@ static void send_nodes_mon_msgs(Process *, Eterm, Eterm, Eterm, Eterm);
static void init_nodes_monitors(void);
static erts_smp_atomic_t no_caches;
+static erts_smp_atomic_t no_nodes;
+
+struct {
+ Eterm reason;
+ ErlHeapFragment *bp;
+} nodedown;
+
static void
delete_cache(ErtsAtomCache *cache)
@@ -144,7 +151,7 @@ create_cache(DistEntry *dep)
ERTS_SMP_LC_ASSERT(
is_internal_port(dep->cid)
- && erts_lc_is_port_locked(&erts_port[internal_port_index(dep->cid)]));
+ && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid)));
ASSERT(!dep->cache);
dep->cache = cp = (ErtsAtomCache*) erts_alloc(ERTS_ALC_T_DCACHE,
@@ -171,11 +178,10 @@ get_suspended_on_de(DistEntry *dep, Uint32 unset_qflgs)
return NULL;
}
else {
- ErtsProcList *plp;
- plp = dep->suspended.first;
- dep->suspended.first = NULL;
- dep->suspended.last = NULL;
- return plp;
+ ErtsProcList *suspended = dep->suspended;
+ dep->suspended = NULL;
+ erts_proclist_fetch(&suspended, NULL);
+ return suspended;
}
}
@@ -252,7 +258,7 @@ static void doit_monitor_net_exits(ErtsMonitor *mon, void *vnecp)
if (mon->type == MON_ORIGIN) {
/* local pid is beeing monitored */
- rmon = erts_remove_monitor(&(rp->monitors),mon->ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref);
/* ASSERT(rmon != NULL); nope, can happen during process exit */
if (rmon != NULL) {
erts_destroy_monitor(rmon);
@@ -262,7 +268,7 @@ static void doit_monitor_net_exits(ErtsMonitor *mon, void *vnecp)
Eterm watched;
UseTmpHeapNoproc(3);
ASSERT(mon->type == MON_TARGET);
- rmon = erts_remove_monitor(&(rp->monitors),mon->ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref);
/* ASSERT(rmon != NULL); can happen during process exit */
if (rmon != NULL) {
ASSERT(is_atom(rmon->name) || is_nil(rmon->name));
@@ -311,7 +317,7 @@ static void doit_link_net_exits_sub(ErtsLink *sublnk, void *vlnecp)
goto done;
}
- rlnk = erts_remove_link(&(rp->nlinks), sublnk->pid);
+ rlnk = erts_remove_link(&ERTS_P_LINKS(rp), sublnk->pid);
xres = erts_send_exit_signal(NULL,
sublnk->pid,
rp,
@@ -370,7 +376,7 @@ static void doit_node_link_net_exits(ErtsLink *lnk, void *vnecp)
if (!rp) {
goto done;
}
- rlnk = erts_remove_link(&(rp->nlinks), name);
+ rlnk = erts_remove_link(&ERTS_P_LINKS(rp), name);
if (rlnk != NULL) {
ASSERT(is_atom(rlnk->pid) && (rlnk->type == LINK_NODE));
erts_destroy_link(rlnk);
@@ -394,6 +400,47 @@ static void doit_node_link_net_exits(ErtsLink *lnk, void *vnecp)
erts_destroy_link(lnk);
}
+static void
+set_node_not_alive(void *unused)
+{
+ ErlHeapFragment *bp;
+ Eterm nodename = erts_this_dist_entry->sysname;
+
+ ASSERT(erts_smp_atomic_read_nob(&no_nodes) == 0);
+
+ erts_smp_thr_progress_block();
+ erts_set_this_node(am_Noname, 0);
+ erts_is_alive = 0;
+ send_nodes_mon_msgs(NULL, am_nodedown, nodename, am_visible, nodedown.reason);
+ nodedown.reason = NIL;
+ bp = nodedown.bp;
+ nodedown.bp = NULL;
+ erts_smp_thr_progress_unblock();
+ if (bp)
+ free_message_buffer(bp);
+}
+
+static ERTS_INLINE void
+dec_no_nodes(void)
+{
+ erts_aint_t no = erts_smp_atomic_dec_read_mb(&no_nodes);
+ ASSERT(no >= 0);
+ ASSERT(erts_get_scheduler_id()); /* Need to be a scheduler */
+ if (no == 0)
+ erts_schedule_misc_aux_work(erts_get_scheduler_id(),
+ set_node_not_alive,
+ NULL);
+}
+
+static ERTS_INLINE void
+inc_no_nodes(void)
+{
+#ifdef DEBUG
+ erts_aint_t no = erts_smp_atomic_read_nob(&no_nodes);
+ ASSERT(erts_is_alive ? no > 0 : no == 0);
+#endif
+ erts_smp_atomic_inc_mb(&no_nodes);
+}
/*
* proc is currently running or exiting process.
@@ -403,47 +450,76 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason)
Eterm nodename;
if (dep == erts_this_dist_entry) { /* Net kernel has died (clean up!!) */
+ DistEntry *tdep;
+ int no_dist_port = 0;
Eterm nd_reason = (reason == am_no_network
? am_no_network
: am_net_kernel_terminated);
erts_smp_rwmtx_rwlock(&erts_dist_table_rwmtx);
+ for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next)
+ no_dist_port++;
+ for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next)
+ no_dist_port++;
+
/* KILL all port controllers */
- while(erts_visible_dist_entries || erts_hidden_dist_entries) {
- DistEntry *tdep;
- Eterm prt_id;
- Port *prt;
- if(erts_hidden_dist_entries)
- tdep = erts_hidden_dist_entries;
- else
- tdep = erts_visible_dist_entries;
- prt_id = tdep->cid;
- ASSERT(is_internal_port(prt_id));
+ if (no_dist_port == 0)
erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx);
+ else {
+ Eterm def_buf[128];
+ int i = 0;
+ Eterm *dist_port;
- prt = erts_id2port(prt_id, NULL, 0);
- if (prt) {
- ASSERT(prt->status & ERTS_PORT_SFLG_DISTRIBUTION);
- ASSERT(prt->dist_entry);
- /* will call do_net_exists !!! */
- erts_do_exit_port(prt, prt_id, nd_reason);
- erts_port_release(prt);
+ if (no_dist_port <= sizeof(def_buf)/sizeof(def_buf[0]))
+ dist_port = &def_buf[0];
+ else
+ dist_port = erts_alloc(ERTS_ALC_T_TMP,
+ sizeof(Eterm)*no_dist_port);
+ for (tdep = erts_hidden_dist_entries; tdep; tdep = tdep->next) {
+ ASSERT(is_internal_port(tdep->cid));
+ dist_port[i++] = tdep->cid;
}
+ for (tdep = erts_visible_dist_entries; tdep; tdep = tdep->next) {
+ ASSERT(is_internal_port(tdep->cid));
+ dist_port[i++] = tdep->cid;
+ }
+ erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx);
- erts_smp_rwmtx_rwlock(&erts_dist_table_rwmtx);
- }
+ for (i = 0; i < no_dist_port; i++) {
+ Port *prt = erts_port_lookup(dist_port[i],
+ ERTS_PORT_SFLGS_INVALID_LOOKUP);
+ if (!prt)
+ continue;
+ ASSERT(erts_atomic32_read_nob(&prt->state)
+ & ERTS_PORT_SFLG_DISTRIBUTION);
- erts_smp_rwmtx_rwunlock(&erts_dist_table_rwmtx);
+ erts_port_exit(NULL, ERTS_PORT_SIG_FLG_FORCE_SCHED,
+ prt, dist_port[i], nd_reason, NULL);
+ }
- nodename = erts_this_dist_entry->sysname;
- erts_smp_thr_progress_block();
- erts_set_this_node(am_Noname, 0);
- erts_is_alive = 0;
- send_nodes_mon_msgs(NULL, am_nodedown, nodename, am_visible, nd_reason);
- erts_smp_thr_progress_unblock();
+ if (dist_port != &def_buf[0])
+ erts_free(ERTS_ALC_T_TMP, dist_port);
+ }
+ /*
+ * When last dist port exits, node will be taken
+ * from alive to not alive.
+ */
+ ASSERT(is_nil(nodedown.reason) && !nodedown.bp);
+ if (is_immed(nd_reason))
+ nodedown.reason = nd_reason;
+ else {
+ Eterm *hp;
+ Uint sz = size_object(nd_reason);
+ nodedown.bp = new_message_buffer(sz);
+ hp = nodedown.bp->mem;
+ nodedown.reason = copy_struct(nd_reason,
+ sz,
+ &hp,
+ &nodedown.bp->off_heap);
+ }
}
- else { /* recursive call via erts_do_exit_port() will end up here */
+ else { /* Call from distribution port */
NetExitsContext nec = {dep};
ErtsLink *nlinks;
ErtsLink *node_links;
@@ -454,10 +530,10 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason)
erts_smp_de_rwlock(dep);
ERTS_SMP_LC_ASSERT(is_internal_port(dep->cid)
- && erts_lc_is_port_locked(&erts_port[internal_port_index(dep->cid)]));
+ && erts_lc_is_port_locked(erts_port_lookup_raw(dep->cid)));
if (erts_port_task_is_scheduled(&dep->dist_cmd))
- erts_port_task_abort(dep->cid, &dep->dist_cmd);
+ erts_port_task_abort(&dep->dist_cmd);
if (dep->status & ERTS_DE_SFLG_EXITING) {
#ifdef DEBUG
@@ -503,6 +579,9 @@ int erts_do_net_exits(DistEntry *dep, Eterm reason)
clear_dist_entry(dep);
}
+
+ dec_no_nodes();
+
return 1;
}
@@ -516,6 +595,10 @@ void init_dist(void)
{
init_nodes_monitors();
+ nodedown.reason = NIL;
+ nodedown.bp = NULL;
+
+ erts_smp_atomic_init_nob(&no_nodes, 0);
erts_smp_atomic_init_nob(&no_caches, 0);
/* Lookup/Install all references to trap functions */
@@ -769,7 +852,7 @@ erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message)
*node_name = *sender_name = *receiver_name = '\0';
if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) {
erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname);
- erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->id);
+ erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->common.id);
erts_snprintf(receiver_name, sizeof(receiver_name), "%T", remote);
msize = size_object(message);
if (token != NIL && token != am_have_dt_utag) {
@@ -826,7 +909,7 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message)
*node_name = *sender_name = *receiver_name = '\0';
if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) {
erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname);
- erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->id);
+ erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->common.id);
erts_snprintf(receiver_name, sizeof(receiver_name),
"{%T,%s}", remote_name, node_name);
msize = size_object(message);
@@ -840,10 +923,10 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message)
if (token != NIL)
ctl = TUPLE5(&ctl_heap[0], make_small(DOP_REG_SEND_TT),
- sender->id, am_Cookie, remote_name, token);
+ sender->common.id, am_Cookie, remote_name, token);
else
ctl = TUPLE4(&ctl_heap[0], make_small(DOP_REG_SEND),
- sender->id, am_Cookie, remote_name);
+ sender->common.id, am_Cookie, remote_name);
DTRACE6(message_send, sender_name, receiver_name,
msize, tok_label, tok_lastcnt, tok_serial);
DTRACE7(message_send_remote, sender_name, node_name, receiver_name,
@@ -889,7 +972,7 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote,
*node_name = *sender_name = *remote_name = '\0';
if (DTRACE_ENABLED(process_exit_signal_remote)) {
erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname);
- erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->id);
+ erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->common.id);
erts_snprintf(remote_name, sizeof(remote_name),
"{%T,%s}", remote, node_name);
erts_snprintf(reason_str, sizeof(reason), "%T", reason);
@@ -1141,7 +1224,7 @@ int erts_net_message(Port *prt,
}
erts_smp_de_links_lock(dep);
- res = erts_add_link(&(rp->nlinks), LINK_PID, from);
+ res = erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, from);
if (res < 0) {
/* It was already there! Lets skip the rest... */
@@ -1149,7 +1232,7 @@ int erts_net_message(Port *prt,
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
break;
}
- lnk = erts_add_or_lookup_link(&(dep->nlinks), LINK_PID, rp->id);
+ lnk = erts_add_or_lookup_link(&(dep->nlinks), LINK_PID, rp->common.id);
erts_add_link(&(ERTS_LINK_ROOT(lnk)), LINK_PID, from);
erts_smp_de_links_unlock(dep);
@@ -1176,7 +1259,7 @@ int erts_net_message(Port *prt,
if (!rp)
break;
- lnk = erts_remove_link(&(rp->nlinks), from);
+ lnk = erts_remove_link(&ERTS_P_LINKS(rp), from);
if (IS_TRACED_FL(rp, F_TRACE_PROCS) && lnk != NULL) {
trace_proc(NULL, rp, am_getting_unlinked, from);
@@ -1233,10 +1316,10 @@ int erts_net_message(Port *prt,
}
else {
if (is_atom(watched))
- watched = rp->id;
+ watched = rp->common.id;
erts_smp_de_links_lock(dep);
erts_add_monitor(&(dep->monitors), MON_ORIGIN, ref, watched, name);
- erts_add_monitor(&(rp->monitors), MON_TARGET, ref, watcher, name);
+ erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, ref, watcher, name);
erts_smp_de_links_unlock(dep);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
}
@@ -1275,7 +1358,7 @@ int erts_net_message(Port *prt,
if (!rp) {
break;
}
- mon = erts_remove_monitor(&(rp->monitors),ref);
+ mon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
ASSERT(mon != NULL);
if (mon == NULL) {
@@ -1312,7 +1395,7 @@ int erts_net_message(Port *prt,
if (is_not_pid(from) || is_not_atom(to)){
goto invalid_message;
}
- rp = erts_whereis_process(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_whereis_process(NULL, 0, to, 0, 0);
if (rp) {
Uint xsize = (type == DOP_REG_SEND
? 0
@@ -1338,7 +1421,6 @@ int erts_net_message(Port *prt,
erts_queue_dist_message(rp, &locks, ede_copy, token);
if (locks)
erts_smp_proc_unlock(rp, locks);
- erts_smp_proc_dec_refc(rp);
}
break;
@@ -1364,7 +1446,7 @@ int erts_net_message(Port *prt,
if (is_not_pid(to)) {
goto invalid_message;
}
- rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_proc_lookup(to);
if (rp) {
Uint xsize = type == DOP_SEND ? 0 : ERTS_HEAP_FRAG_SIZE(token_size);
ErtsProcLocks locks = 0;
@@ -1388,7 +1470,6 @@ int erts_net_message(Port *prt,
erts_queue_dist_message(rp, &locks, ede_copy, token);
if (locks)
erts_smp_proc_unlock(rp, locks);
- erts_smp_proc_dec_refc(rp);
}
break;
@@ -1434,7 +1515,7 @@ int erts_net_message(Port *prt,
erts_destroy_monitor(mon);
- mon = erts_remove_monitor(&(rp->monitors),ref);
+ mon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref);
if (mon == NULL) {
erts_smp_proc_unlock(rp, rp_locks);
@@ -1485,7 +1566,7 @@ int erts_net_message(Port *prt,
if (!rp)
lnk = NULL;
else {
- lnk = erts_remove_link(&(rp->nlinks), from);
+ lnk = erts_remove_link(&ERTS_P_LINKS(rp), from);
/* If lnk == NULL, we have unlinked on this side, i.e.
* ignore exit.
@@ -1544,8 +1625,7 @@ int erts_net_message(Port *prt,
if (is_not_pid(from) || is_not_internal_pid(to)) {
goto invalid_message;
}
- rp = erts_pid2proc_opt(NULL, 0, to, rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_pid2proc(NULL, 0, to, rp_locks);
if (rp) {
(void) erts_send_exit_signal(NULL,
from,
@@ -1556,7 +1636,6 @@ int erts_net_message(Port *prt,
NULL,
0);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
break;
}
@@ -1601,7 +1680,7 @@ int erts_net_message(Port *prt,
erts_free(ERTS_ALC_T_DCTRL_BUF, (void *) ctl);
}
UnUseTmpHeapNoproc(DIST_CTL_DEFAULT_SIZE);
- erts_do_exit_port(prt, dep->cid, am_killed);
+ erts_deliver_port_exit(prt, dep->cid, am_killed, 0);
ERTS_SMP_CHK_NO_PROC_LOCKS;
return -1;
}
@@ -1697,7 +1776,6 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy)
erts_smp_mtx_unlock(&dep->qlock);
plp = erts_proclist_create(c_p);
- plp->next = NULL;
erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
suspended = 1;
erts_smp_mtx_lock(&dep->qlock);
@@ -1730,11 +1808,7 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy)
else {
/* Enqueue suspended process on dist entry */
ASSERT(plp);
- if (dep->suspended.last)
- dep->suspended.last->next = plp;
- else
- dep->suspended.first = plp;
- dep->suspended.last = plp;
+ erts_proclist_store_last(&dep->suspended, plp);
}
}
@@ -1783,7 +1857,7 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy)
erts_snprintf(port_str, sizeof(port_str), "%T", cid);
erts_snprintf(remote_str, sizeof(remote_str), "%T", dep->sysname);
- erts_snprintf(pid_str, sizeof(pid_str), "%T", c_p->id);
+ erts_snprintf(pid_str, sizeof(pid_str), "%T", c_p->common.id);
DTRACE4(dist_port_busy, erts_this_node_sysname,
port_str, remote_str, pid_str);
}
@@ -1816,7 +1890,7 @@ dist_port_command(Port *prt, ErtsDistOutputBuf *obuf)
DTRACE_CHARBUF(port_str, 64);
DTRACE_CHARBUF(remote_str, 64);
- erts_snprintf(port_str, sizeof(port_str), "%T", prt->id);
+ erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id);
erts_snprintf(remote_str, sizeof(remote_str),
"%T", prt->dist_entry->sysname);
DTRACE4(dist_output, erts_this_node_sysname, port_str,
@@ -1870,7 +1944,7 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf)
DTRACE_CHARBUF(port_str, 64);
DTRACE_CHARBUF(remote_str, 64);
- erts_snprintf(port_str, sizeof(port_str), "%T", prt->id);
+ erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id);
erts_snprintf(remote_str, sizeof(remote_str),
"%T", prt->dist_entry->sysname);
DTRACE4(dist_outputv, erts_this_node_sysname, port_str,
@@ -1907,13 +1981,13 @@ int
erts_dist_command(Port *prt, int reds_limit)
{
Sint reds = ERTS_PORT_REDS_DIST_CMD_START;
- int prt_busy;
Uint32 status;
Uint32 flags;
Sint obufsize = 0;
ErtsDistOutputQueue oq, foq;
DistEntry *dep = prt->dist_entry;
Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf);
+ erts_aint32_t sched_flags;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
@@ -1929,7 +2003,7 @@ erts_dist_command(Port *prt, int reds_limit)
erts_smp_de_runlock(dep);
if (status & ERTS_DE_SFLG_EXITING) {
- erts_do_exit_port(prt, prt->id, am_killed);
+ erts_deliver_port_exit(prt, prt->common.id, am_killed, 0);
erts_deref_dist_entry(dep);
return reds + ERTS_PORT_REDS_DIST_CMD_EXIT;
}
@@ -1956,12 +2030,12 @@ erts_dist_command(Port *prt, int reds_limit)
dep->finalized_out_queue.first = NULL;
dep->finalized_out_queue.last = NULL;
+ sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+
if (reds > reds_limit)
goto preempted;
- prt_busy = (int) (prt->status & ERTS_PORT_SFLG_PORT_BUSY);
-
- if (!prt_busy && foq.first) {
+ if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT) && foq.first) {
int preempt = 0;
do {
Uint size;
@@ -1973,15 +2047,15 @@ erts_dist_command(Port *prt, int reds_limit)
bw(foq.first->extp, size);
#endif
reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
+ erts_smp_atomic_add_nob(&erts_bytes_out, size);
fob = foq.first;
obufsize += size_obuf(fob);
foq.first = foq.first->next;
free_dist_obuf(fob);
- preempt = reds > reds_limit || (prt->status & ERTS_PORT_SFLGS_DEAD);
- if (prt->status & ERTS_PORT_SFLG_PORT_BUSY) {
- prt_busy = 1;
+ sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT);
+ if (sched_flags & ERTS_PTS_FLG_BUSY_PORT)
break;
- }
} while (foq.first && !preempt);
if (!foq.first)
foq.last = NULL;
@@ -1989,7 +2063,7 @@ erts_dist_command(Port *prt, int reds_limit)
goto preempted;
}
- if (prt_busy) {
+ if (sched_flags & ERTS_PTS_FLG_BUSY_PORT) {
if (oq.first) {
ErtsDistOutputBuf *ob;
int preempt;
@@ -2056,16 +2130,15 @@ erts_dist_command(Port *prt, int reds_limit)
bw(oq.first->extp, size);
#endif
reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
+ erts_smp_atomic_add_nob(&erts_bytes_out, size);
fob = oq.first;
obufsize += size_obuf(fob);
oq.first = oq.first->next;
free_dist_obuf(fob);
- preempt = reds > reds_limit || (prt->status & ERTS_PORT_SFLGS_DEAD);
- if (prt->status & ERTS_PORT_SFLG_PORT_BUSY) {
- prt_busy = 1;
- if (oq.first && !preempt)
- goto finalize_only;
- }
+ sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ preempt = reds > reds_limit || (sched_flags & ERTS_PTS_FLG_EXIT);
+ if ((sched_flags & ERTS_PTS_FLG_BUSY_PORT) && oq.first && !preempt)
+ goto finalize_only;
}
ASSERT(!oq.first || preempt);
@@ -2093,7 +2166,7 @@ erts_dist_command(Port *prt, int reds_limit)
ASSERT(dep->qsize >= obufsize);
dep->qsize -= obufsize;
obufsize = 0;
- if (!prt_busy
+ if (!(sched_flags & ERTS_PTS_FLG_BUSY_PORT)
&& (dep->qflgs & ERTS_DE_QFLG_BUSY)
&& dep->qsize < erts_dist_buf_busy_limit) {
ErtsProcList *suspendees;
@@ -2139,11 +2212,15 @@ erts_dist_command(Port *prt, int reds_limit)
return reds;
preempted:
+ /*
+ * Here we assume that state has been read
+ * since last call to driver.
+ */
ASSERT(oq.first || !oq.last);
ASSERT(!oq.first || oq.last);
- if (prt->status & ERTS_PORT_SFLGS_DEAD) {
+ if (sched_flags & ERTS_PTS_FLG_EXIT) {
/*
* Port died during port command; clean up 'oq'
* and 'foq'. Things buffered in dist entry after
@@ -2201,7 +2278,7 @@ erts_dist_port_not_busy(Port *prt)
DTRACE_CHARBUF(port_str, 64);
DTRACE_CHARBUF(remote_str, 64);
- erts_snprintf(port_str, sizeof(port_str), "%T", prt->id);
+ erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id);
erts_snprintf(remote_str, sizeof(remote_str),
"%T", prt->dist_entry->sysname);
DTRACE3(dist_port_not_busy, erts_this_node_sysname,
@@ -2242,8 +2319,8 @@ static void doit_print_monitor_info(ErtsMonitor *mon, void *vptdp)
void *arg = ((struct print_to_data *) vptdp)->arg;
Process *rp;
ErtsMonitor *rmon;
- rp = erts_pid2proc_unlocked(mon->pid);
- if (!rp || (rmon = erts_lookup_monitor(rp->monitors, mon->ref)) == NULL) {
+ rp = erts_proc_lookup(mon->pid);
+ if (!rp || (rmon = erts_lookup_monitor(ERTS_P_MONITORS(rp), mon->ref)) == NULL) {
erts_print(to, arg, "Warning, stray monitor for: %T\n", mon->pid);
} else if (mon->type == MON_ORIGIN) {
/* Local pid is being monitored */
@@ -2281,7 +2358,7 @@ static void doit_print_link_info2(ErtsLink *lnk, void *vpplc)
static void doit_print_link_info(ErtsLink *lnk, void *vptdp)
{
- if (is_internal_pid(lnk->pid) && erts_pid2proc_unlocked(lnk->pid)) {
+ if (is_internal_pid(lnk->pid) && erts_proc_lookup(lnk->pid)) {
PrintLinkContext plc = {(struct print_to_data *) vptdp, lnk->pid};
erts_doforall_links(ERTS_LINK_ROOT(lnk), &doit_print_link_info2, &plc);
}
@@ -2303,7 +2380,7 @@ static void doit_print_nodelink_info(ErtsLink *lnk, void *vpcontext)
{
PrintNodeLinkContext *pcontext = vpcontext;
- if (is_internal_pid(lnk->pid) && erts_pid2proc_unlocked(lnk->pid))
+ if (is_internal_pid(lnk->pid) && erts_proc_lookup(lnk->pid))
erts_print(pcontext->ptd.to, pcontext->ptd.arg,
"Remote monitoring: %T %T\n", lnk->pid, pcontext->sysname);
}
@@ -2451,15 +2528,15 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2)
goto error;
/* Check that all trap functions are defined !! */
- if (dsend2_trap->address == NULL ||
- dsend3_trap->address == NULL ||
+ if (dsend2_trap->addressv[0] == NULL ||
+ dsend3_trap->addressv[0] == NULL ||
/* dsend_nosuspend_trap->address == NULL ||*/
- dlink_trap->address == NULL ||
- dunlink_trap->address == NULL ||
- dmonitor_node_trap->address == NULL ||
- dgroup_leader_trap->address == NULL ||
- dmonitor_p_trap->address == NULL ||
- dexit_trap->address == NULL) {
+ dlink_trap->addressv[0] == NULL ||
+ dunlink_trap->addressv[0] == NULL ||
+ dmonitor_node_trap->addressv[0] == NULL ||
+ dgroup_leader_trap->addressv[0] == NULL ||
+ dmonitor_p_trap->addressv[0] == NULL ||
+ dexit_trap->addressv[0] == NULL) {
goto error;
}
@@ -2488,6 +2565,7 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2)
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
+ inc_no_nodes();
erts_set_this_node(BIF_ARG_1, (Uint32) creation);
erts_is_alive = 1;
send_nodes_mon_msgs(NULL, am_nodeup, BIF_ARG_1, am_visible, NIL);
@@ -2556,9 +2634,9 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
/* DFLAG_EXTENDED_REFERENCES is compulsory from R9 and forward */
if (!(DFLAG_EXTENDED_REFERENCES & flags)) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
- erts_dsprintf(dsbufp, "%T", BIF_P->id);
- if (BIF_P->reg)
- erts_dsprintf(dsbufp, " (%T)", BIF_P->reg->name);
+ erts_dsprintf(dsbufp, "%T", BIF_P->common.id);
+ if (BIF_P->common.u.alive.reg)
+ erts_dsprintf(dsbufp, " (%T)", BIF_P->common.u.alive.reg->name);
erts_dsprintf(dsbufp,
" attempted to enable connection to node %T "
"which is not able to handle extended references.\n",
@@ -2578,10 +2656,14 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
else if (!dep)
goto system_limit; /* Should never happen!!! */
- pp = erts_id2port(BIF_ARG_2, BIF_P, ERTS_PROC_LOCK_MAIN);
+ pp = erts_id2port_sflgs(BIF_ARG_2,
+ BIF_P,
+ ERTS_PROC_LOCK_MAIN,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP);
erts_smp_de_rwlock(dep);
- if (!pp || (pp->status & ERTS_PORT_SFLG_EXITING))
+ if (!pp || (erts_atomic32_read_nob(&pp->state)
+ & ERTS_PORT_SFLG_EXITING))
goto badarg;
if ((pp->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY) == 0)
@@ -2596,11 +2678,7 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
plp->next = NULL;
erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, NULL);
erts_smp_mtx_lock(&dep->qlock);
- if (dep->suspended.last)
- dep->suspended.last->next = plp;
- else
- dep->suspended.first = plp;
- dep->suspended.last = plp;
+ erts_proclist_store_last(&dep->suspended, plp);
erts_smp_mtx_unlock(&dep->qlock);
goto yield;
}
@@ -2610,7 +2688,16 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
if (pp->dist_entry || is_not_nil(dep->cid))
goto badarg;
- erts_port_status_bor_set(pp, ERTS_PORT_SFLG_DISTRIBUTION);
+ erts_atomic32_read_bor_nob(&pp->state, ERTS_PORT_SFLG_DISTRIBUTION);
+
+ /*
+ * Dist-ports do not use the "busy port message queue" functionality, but
+ * instead use "busy dist entry" functionality.
+ */
+ {
+ ErlDrvSizeT disable = ERL_DRV_BUSY_MSGQ_DISABLED;
+ erl_drv_busy_msgq_limits((ErlDrvPort) pp, &disable, NULL);
+ }
pp->dist_entry = dep;
@@ -2642,6 +2729,8 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
erts_smp_de_rwunlock(dep);
dep = NULL; /* inc of refc transferred to port (dist_entry field) */
+ inc_no_nodes();
+
send_nodes_mon_msgs(BIF_P,
am_nodeup,
BIF_ARG_1,
@@ -2655,7 +2744,7 @@ BIF_RETTYPE setnode_3(BIF_ALIST_3)
}
if (pp)
- erts_smp_port_unlock(pp);
+ erts_port_release(pp);
return ret;
@@ -2699,16 +2788,15 @@ BIF_RETTYPE dist_exit_3(BIF_ALIST_3)
if (is_internal_pid(local)) {
Process *lp;
ErtsProcLocks lp_locks;
- if (BIF_P->id == local) {
+ if (BIF_P->common.id == local) {
lp_locks = ERTS_PROC_LOCKS_ALL;
lp = BIF_P;
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCKS_ALL_MINOR);
}
else {
lp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- lp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN,
- local, lp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ lp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
+ local, lp_locks);
if (!lp) {
BIF_RET(am_true); /* ignore */
}
@@ -2727,14 +2815,18 @@ BIF_RETTYPE dist_exit_3(BIF_ALIST_3)
lp_locks &= ~ERTS_PROC_LOCK_MAIN;
#endif
erts_smp_proc_unlock(lp, lp_locks);
- if (lp != BIF_P)
- erts_smp_proc_dec_refc(lp);
- else {
+ if (lp == BIF_P) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&BIF_P->state);
/*
* We may have exited current process and may have to take action.
*/
- ERTS_BIF_CHK_EXITED(BIF_P);
- ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P, ERTS_PROC_LOCK_MAIN);
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) {
+#ifdef ERTS_SMP
+ if (state & ERTS_PSFLG_PENDING_EXIT)
+ erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN);
+#endif
+ ERTS_BIF_EXITED(BIF_P);
+ }
}
}
else if (is_external_pid(local)
@@ -2932,23 +3024,23 @@ monitor_node(Process* p, Eterm Node, Eterm Bool, Eterm Options)
if (Bool == am_true) {
ASSERT(dep->cid != NIL);
lnk = erts_add_or_lookup_link(&(dep->node_links), LINK_NODE,
- p->id);
+ p->common.id);
++ERTS_LINK_REFC(lnk);
- lnk = erts_add_or_lookup_link(&(p->nlinks), LINK_NODE, Node);
+ lnk = erts_add_or_lookup_link(&ERTS_P_LINKS(p), LINK_NODE, Node);
++ERTS_LINK_REFC(lnk);
}
else {
- lnk = erts_lookup_link(dep->node_links, p->id);
+ lnk = erts_lookup_link(dep->node_links, p->common.id);
if (lnk != NULL) {
if ((--ERTS_LINK_REFC(lnk)) == 0) {
erts_destroy_link(erts_remove_link(&(dep->node_links),
- p->id));
+ p->common.id));
}
}
- lnk = erts_lookup_link(p->nlinks, Node);
+ lnk = erts_lookup_link(ERTS_P_LINKS(p), Node);
if (lnk != NULL) {
if ((--ERTS_LINK_REFC(lnk)) == 0) {
- erts_destroy_link(erts_remove_link(&(p->nlinks),
+ erts_destroy_link(erts_remove_link(&ERTS_P_LINKS(p),
Node));
}
}
@@ -3510,7 +3602,7 @@ erts_processes_monitoring_nodes(Process *c_p)
olist = erts_bld_cons(hpp, szp, am_nodedown_reason, olist);
res = erts_bld_cons(hpp, szp,
erts_bld_tuple(hpp, szp, 2,
- nmp->proc->id,
+ nmp->proc->common.id,
olist),
res);
}
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h
index 845151c895..2bc3d9c881 100644
--- a/erts/emulator/beam/dist.h
+++ b/erts/emulator/beam/dist.h
@@ -187,11 +187,12 @@ void erts_schedule_dist_command(Port *prt, DistEntry *dist_entry)
if (prt) {
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- ASSERT((erts_port_status_get(prt) & ERTS_PORT_SFLGS_DEAD) == 0);
+ ASSERT((erts_atomic32_read_nob(&prt->state)
+ & ERTS_PORT_SFLGS_DEAD) == 0);
ASSERT(prt->dist_entry);
dep = prt->dist_entry;
- id = prt->id;
+ id = prt->common.id;
}
else {
ASSERT(dist_entry);
@@ -203,13 +204,8 @@ void erts_schedule_dist_command(Port *prt, DistEntry *dist_entry)
id = dep->cid;
}
- if (!erts_smp_atomic_xchg_mb(&dep->dist_cmd_scheduled, 1)) {
- (void) erts_port_task_schedule(id,
- &dep->dist_cmd,
- ERTS_PORT_TASK_DIST_CMD,
- (ErlDrvEvent) -1,
- NULL);
- }
+ if (!erts_smp_atomic_xchg_mb(&dep->dist_cmd_scheduled, 1))
+ erts_port_task_schedule(id, &dep->dist_cmd, ERTS_PORT_TASK_DIST_CMD);
}
#endif
diff --git a/erts/emulator/beam/erl_afit_alloc.c b/erts/emulator/beam/erl_afit_alloc.c
index 570cc59be2..306b32691c 100644
--- a/erts/emulator/beam/erl_afit_alloc.c
+++ b/erts/emulator/beam/erl_afit_alloc.c
@@ -37,6 +37,12 @@
#define GET_ERL_AF_ALLOC_IMPL
#include "erl_afit_alloc.h"
+struct AFFreeBlock_t_ {
+ Block_t block_head;
+ AFFreeBlock_t *prev;
+ AFFreeBlock_t *next;
+};
+#define AF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->block_head)
#define MIN_MBC_SZ (16*1024)
#define MIN_MBC_FIRST_FREE_SZ (4*1024)
@@ -80,7 +86,6 @@ erts_afalc_start(AFAllctr_t *afallctr,
init->sbmbct = 0; /* Small mbc not supported by afit */
- allctr->mbc_header_size = sizeof(Carrier_t);
allctr->min_mbc_size = MIN_MBC_SZ;
allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ;
allctr->min_block_size = sizeof(AFFreeBlock_t);
@@ -118,7 +123,7 @@ get_free_block(Allctr_t *allctr, Uint size, Block_t *cand_blk, Uint cand_size,
ASSERT(!cand_blk || cand_size >= size);
- if (afallctr->free_list && BLK_SZ(afallctr->free_list) >= size) {
+ if (afallctr->free_list && AF_BLK_SZ(afallctr->free_list) >= size) {
AFFreeBlock_t *res = afallctr->free_list;
afallctr->free_list = res->next;
if (res->next)
@@ -135,7 +140,7 @@ link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
AFFreeBlock_t *blk = (AFFreeBlock_t *) block;
AFAllctr_t *afallctr = (AFAllctr_t *) allctr;
- if (afallctr->free_list && BLK_SZ(afallctr->free_list) > BLK_SZ(blk)) {
+ if (afallctr->free_list && AF_BLK_SZ(afallctr->free_list) > AF_BLK_SZ(blk)) {
blk->next = afallctr->free_list->next;
blk->prev = afallctr->free_list;
afallctr->free_list->next = blk;
diff --git a/erts/emulator/beam/erl_afit_alloc.h b/erts/emulator/beam/erl_afit_alloc.h
index ea408a7194..87caccac20 100644
--- a/erts/emulator/beam/erl_afit_alloc.h
+++ b/erts/emulator/beam/erl_afit_alloc.h
@@ -49,11 +49,6 @@ Allctr_t *erts_afalc_start(AFAllctr_t *, AFAllctrInit_t *, AllctrInit_t *);
#include "erl_alloc_util.h"
typedef struct AFFreeBlock_t_ AFFreeBlock_t;
-struct AFFreeBlock_t_ {
- Block_t block_head;
- AFFreeBlock_t *prev;
- AFFreeBlock_t *next;
-};
struct AFAllctr_t_ {
Allctr_t allctr; /* Has to be first! */
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 6fce032f9d..5da8c69c03 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -310,9 +310,9 @@ set_default_ll_alloc_opts(struct au_init *ip)
ip->init.util.name_prefix = "ll_";
ip->init.util.alloc_no = ERTS_ALC_A_LONG_LIVED;
#ifndef SMALL_MEMORY
- ip->init.util.mmbcs = 2*1024*1024; /* Main carrier size */
+ ip->init.util.mmbcs = 2*1024*1024 - 40; /* Main carrier size */
#else
- ip->init.util.mmbcs = 1*1024*1024; /* Main carrier size */
+ ip->init.util.mmbcs = 1*1024*1024 - 40; /* Main carrier size */
#endif
ip->init.util.ts = ERTS_ALC_MTA_LONG_LIVED;
ip->init.util.asbcst = 0;
@@ -1173,6 +1173,11 @@ handle_au_arg(struct au_init *auip,
break;
case 'e':
auip->enable = get_bool_value(sub_param+1, argv, ip);
+#if !HAVE_ERTS_SBMBC
+ if (auip->init.util.alloc_no == ERTS_ALC_A_SBMBC) {
+ auip->enable = 0;
+ }
+#endif
break;
case 'l':
if (has_prefix("lmbcs", sub_param)) {
@@ -1233,10 +1238,16 @@ handle_au_arg(struct au_init *auip,
auip->init.util.sbct = get_kb_value(sub_param + 4, argv, ip);
}
else if (has_prefix("sbmbcs", sub_param)) {
- auip->init.util.sbmbcs = get_byte_value(sub_param + 6, argv, ip);
+#if HAVE_ERTS_SBMBC
+ auip->init.util.sbmbcs =
+#endif
+ get_byte_value(sub_param + 6, argv, ip);
}
else if (has_prefix("sbmbct", sub_param)) {
- auip->init.util.sbmbct = get_byte_value(sub_param + 6, argv, ip);
+#if HAVE_ERTS_SBMBC
+ auip->init.util.sbmbct =
+#endif
+ get_byte_value(sub_param + 6, argv, ip);
}
else if (has_prefix("smbcs", sub_param)) {
auip->default_.smbcs = 0;
@@ -1403,6 +1414,9 @@ handle_args(int *argc, char **argv, erts_alc_hndl_args_init_t *init)
else if (strcmp("max", arg) == 0) {
for (a = 0; a < aui_sz; a++)
aui[a]->enable = 1;
+#if !HAVE_ERTS_SBMBC
+ init->sbmbc_alloc.enable = 0;
+#endif
}
else if (strcmp("config", arg) == 0) {
init->erts_alloc_config = 1;
@@ -1675,7 +1689,7 @@ erts_alc_fatal_error(int error, int func, ErtsAlcType_t n, ...)
t_str = type_no_str(n);
if (!t_str) {
- sprintf(buf, "%d", (int) n);
+ erts_snprintf(buf, sizeof(buf), "%d", (int) n);
t_str = buf;
}
@@ -2128,6 +2142,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
if (want_tot_or_sys || want.processes || want.processes_used) {
+ int max_processes = erts_ptab_max(&erts_proc);
UWord tmp;
if (ERTS_MEM_NEED_ALL_ALCU)
@@ -2137,7 +2152,7 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
fi, ERTS_ALC_NO_FIXED_SIZES);
tmp = alcu_size(ERTS_ALC_A_EHEAP, NULL, 0);
}
- tmp += erts_max_processes*sizeof(Process*);
+ tmp += max_processes*sizeof(erts_smp_atomic_t);
tmp += erts_bif_timer_memory_size();
tmp += erts_tot_link_lh_size();
@@ -2182,9 +2197,9 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
if (want.code) {
size.code = module_table_sz();
size.code += export_table_sz();
- size.code += export_list_size() * sizeof(Export);
+ size.code += export_entries_sz();
size.code += erts_fun_table_sz();
- size.code += allocated_modules*sizeof(Range);
+ size.code += erts_ranges_sz();
size.code += erts_total_code_size;
}
@@ -2268,6 +2283,8 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
Eterm res = THE_NON_VALUE;
int i, length;
Uint reserved_atom_space, atom_space;
+ int max_processes = erts_ptab_max(&erts_proc);
+ int max_ports = erts_ptab_max(&erts_port);
if (proc) {
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN
@@ -2299,12 +2316,8 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
values[i].arity = 2;
values[i].name = "static";
values[i].ui[0] =
- erts_max_ports*sizeof(Port) /* Port table */
- + erts_timer_wheel_memory_size() /* Timer wheel */
-#ifdef SYS_TMP_BUF_SIZE
- + SYS_TMP_BUF_SIZE /* tmp_buf in sys on vxworks & ose */
-#endif
- ;
+ max_ports*sizeof(erts_smp_atomic_t) /* Port table */
+ + erts_timer_wheel_memory_size(); /* Timer wheel */
i++;
erts_atom_get_text_space_sizes(&reserved_atom_space, &atom_space);
@@ -2332,7 +2345,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
values[i].arity = 2;
values[i].name = "export_list";
- values[i].ui[0] = export_list_size() * sizeof(Export);
+ values[i].ui[0] = export_entries_sz();
i++;
values[i].arity = 2;
@@ -2347,7 +2360,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
values[i].arity = 2;
values[i].name = "module_refs";
- values[i].ui[0] = allocated_modules*sizeof(Range);
+ values[i].ui[0] = erts_ranges_sz();
i++;
values[i].arity = 2;
@@ -2382,7 +2395,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
values[i].arity = 2;
values[i].name = "process_table";
- values[i].ui[0] = erts_max_processes*sizeof(Process*);
+ values[i].ui[0] = max_processes*sizeof(Process*);
i++;
values[i].arity = 2;
@@ -3576,12 +3589,12 @@ check_memory_fence(void *ptr, Uint *size, ErtsAlcType_t n, int func)
ftype = type_no_str(found_type);
if (!ftype) {
- sprintf(fbuf, "%d", (int) found_type);
+ erts_snprintf(fbuf, sizeof(fbuf), "%d", (int) found_type);
ftype = fbuf;
}
otype = type_no_str(n);
if (!otype) {
- sprintf(obuf, "%d", (int) n);
+ erts_snprintf(obuf, sizeof(obuf), "%d", (int) n);
otype = obuf;
}
diff --git a/erts/emulator/beam/erl_alloc.h b/erts/emulator/beam/erl_alloc.h
index e475f9d8a2..ba5ec9c367 100644
--- a/erts/emulator/beam/erl_alloc.h
+++ b/erts/emulator/beam/erl_alloc.h
@@ -267,6 +267,8 @@ typedef void (*erts_alloc_verify_func_t)(Allctr_t *);
erts_alloc_verify_func_t
erts_alloc_get_verify_unused_temp_alloc(Allctr_t **allctr);
+#define ERTS_ALC_DATA_ALIGN_SIZE(SZ) \
+ (((((SZ) - 1) / 8) + 1) * 8)
#define ERTS_ALC_CACHE_LINE_ALIGN_SIZE(SZ) \
(((((SZ) - 1) / ERTS_CACHE_LINE_SIZE) + 1) * ERTS_CACHE_LINE_SIZE)
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index 4aa8fa82fb..d4de0d076a 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -146,6 +146,7 @@ class SYSTEM system_data
type SBMBC SBMBC SYSTEM small_block_mbc
type PROC FIXED_SIZE PROCESSES proc
+type PORT DRIVER SYSTEM port
type ATOM LONG_LIVED ATOM atom_entry
type MODULE LONG_LIVED CODE module_entry
type REG_PROC STANDARD PROCESSES reg_proc
@@ -164,6 +165,7 @@ type MSG_REF FIXED_SIZE PROCESSES msg_ref
type MSG_ROOTS TEMPORARY PROCESSES msg_roots
type ROOTSET TEMPORARY PROCESSES root_set
type LOADER_TMP TEMPORARY CODE loader_tmp
+type PREPARED_CODE SHORT_LIVED CODE prepared_code
type BIF_TIMER_TABLE LONG_LIVED SYSTEM bif_timer_table
type SL_BIF_TIMER SHORT_LIVED PROCESSES bif_timer_sl
type LL_BIF_TIMER STANDARD PROCESSES bif_timer_ll
@@ -188,7 +190,10 @@ type PORT_TABLE LONG_LIVED SYSTEM port_tab
type TIMER_WHEEL LONG_LIVED SYSTEM timer_wheel
type DRV DRIVER SYSTEM drv_internal
type DRV_BINARY BINARY BINARIES drv_binary
-type DRIVER STANDARD SYSTEM driver
+type DRIVER DRIVER SYSTEM driver
+type DRV_CMD_DATA DRIVER SYSTEM driver_command_data
+type DRV_CTRL_DATA DRIVER SYSTEM driver_control_data
+type DRV_CALL_DATA DRIVER SYSTEM driver_call_data
type NIF DRIVER SYSTEM nif_internal
type BINARY BINARY BINARIES binary
type NBIF_TABLE SYSTEM SYSTEM nbif_tab
@@ -196,14 +201,12 @@ type ARG_REG STANDARD PROCESSES arg_reg
type PROC_DICT STANDARD PROCESSES proc_dict
type CALLS_BUF STANDARD PROCESSES calls_buf
type BPD STANDARD SYSTEM bpd
-type PORT_NAME STANDARD SYSTEM port_name
type LINEBUF STANDARD SYSTEM line_buf
type IOQ STANDARD SYSTEM io_queue
type BITS_BUF STANDARD SYSTEM bits_buf
type TMP_DIST_BUF TEMPORARY SYSTEM tmp_dist_buf
type ASYNC_DATA LONG_LIVED SYSTEM internal_async_data
type ESTACK TEMPORARY SYSTEM estack
-type PORT_CALL_BUF TEMPORARY SYSTEM port_call_buf
type DB_TABLE ETS ETS db_tab
type DB_FIXATION SHORT_LIVED ETS db_fixation
type DB_FIX_DEL SHORT_LIVED ETS fixed_del
@@ -233,14 +236,14 @@ type DDLL_HANDLE STANDARD SYSTEM ddll_handle
type DDLL_ERRCODES LONG_LIVED SYSTEM ddll_errcodes
type DDLL_TMP_BUF TEMPORARY SYSTEM ddll_tmp_buf
type PORT_TASK SHORT_LIVED SYSTEM port_task
-type PORT_TASKQ SHORT_LIVED SYSTEM port_task_queue
+type PT_HNDL_LIST SHORT_LIVED SYSTEM port_task_handle_list
type MISC_OP_LIST SHORT_LIVED SYSTEM misc_op_list
type PORT_NAMES SHORT_LIVED SYSTEM port_names
-type PORT_DATA_LOCK STANDARD SYSTEM port_data_lock
+type PORT_DATA_LOCK DRIVER SYSTEM port_data_lock
type NODES_MON STANDARD PROCESSES nodes_monitor
-type PROCS_TPROC_EL SHORT_LIVED PROCESSES processes_term_proc_el
-type PROCS_CNKINF SHORT_LIVED PROCESSES processes_chunk_info
-type PROCS_PIDS SHORT_LIVED PROCESSES processes_pids
+type PTAB_LIST_DEL SHORT_LIVED PROCESSES ptab_list_deleted_el
+type PTAB_LIST_CNKI SHORT_LIVED PROCESSES ptab_list_chunk_info
+type PTAB_LIST_PIDS SHORT_LIVED PROCESSES ptab_list_pids
type RE_TMP_BUF TEMPORARY SYSTEM re_tmp_buf
type RE_SUBJECT SHORT_LIVED SYSTEM re_subject
type RE_HEAP STANDARD SYSTEM re_heap
@@ -263,6 +266,10 @@ type ZLIB STANDARD SYSTEM zlib
type CPU_GRPS_MAP LONG_LIVED SYSTEM cpu_groups_map
type AUX_WORK_TMO LONG_LIVED SYSTEM aux_work_timeouts
type MISC_AUX_WORK_Q LONG_LIVED SYSTEM misc_aux_work_q
+type CODE_IX_LOCK_Q SHORT_LIVED SYSTEM code_ix_lock_q
+type PROC_INTERVAL LONG_LIVED SYSTEM process_interval
+type BUSY_CALLER_TAB SHORT_LIVED SYSTEM busy_caller_table
+type BUSY_CALLER SHORT_LIVED SYSTEM busy_caller
+if threads_no_smp
# Need thread safe allocs, but std_alloc and fix_alloc are not;
@@ -321,6 +328,8 @@ type SL_PTIMER SHORT_LIVED SYSTEM ptimer_sl
type LL_PTIMER STANDARD SYSTEM ptimer_ll
type SYS_MSG_Q SHORT_LIVED PROCESSES system_messages_queue
type FP_EXCEPTION LONG_LIVED SYSTEM fp_exception
+type LL_MPATHS LONG_LIVED SYSTEM ll_migration_paths
+type SL_MPATHS SHORT_LIVED SYSTEM sl_migration_paths
+endif
+if hipe
@@ -414,28 +423,4 @@ type CON_VPRINTF_BUF TEMPORARY SYSTEM con_vprintf_buf
+endif
-+if vxworks
-
-type SYS_TMP_BUF LONG_LIVED SYSTEM sys_tmp_buf
-type PEND_DATA SYSTEM SYSTEM pending_data
-type FD_TAB LONG_LIVED SYSTEM fd_tab
-type FD_ENTRY_BUF SYSTEM SYSTEM fd_entry_buf
-
-+endif
-
-+if ose
-
-type SYS_TMP_BUF LONG_LIVED SYSTEM sys_tmp_buf
-type PUTENV_STR SYSTEM SYSTEM putenv_string
-type GETENV_STR SYSTEM SYSTEM getenv_string
-type GETENV_STATE SYSTEM SYSTEM getenv_state
-type SIG_ENTRY SYSTEM SYSTEM sig_entry
-type DRIVER_DATA SYSTEM SYSTEM driver_data
-type PGM_TAB SYSTEM SYSTEM pgm_tab
-type PGM_ENTRY SYSTEM SYSTEM pgm_entry
-type PRT_TAB SYSTEM SYSTEM prt_tab
-type PRT_ENTRY SYSTEM SYSTEM prt_entry
-
-+endif
-
# ----------------------------------------------------------------------------
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c
index 97ba306a79..3d6761339b 100644
--- a/erts/emulator/beam/erl_alloc_util.c
+++ b/erts/emulator/beam/erl_alloc_util.c
@@ -78,10 +78,12 @@ int erts_have_sbmbc_alloc;
#if HAVE_ERTS_MSEG
-#define INV_MSEG_UNIT_MASK ((UWord) (mseg_unit_size - 1))
-#define MSEG_UNIT_MASK (~INV_MSEG_UNIT_MASK)
+#define MSEG_UNIT_SHIFT MSEG_ALIGN_BITS
+#define MSEG_UNIT_SZ (1 << MSEG_UNIT_SHIFT)
+#define MSEG_UNIT_MASK ((~(UWord)0) << MSEG_UNIT_SHIFT)
+
#define MSEG_UNIT_FLOOR(X) ((X) & MSEG_UNIT_MASK)
-#define MSEG_UNIT_CEILING(X) MSEG_UNIT_FLOOR((X) + INV_MSEG_UNIT_MASK)
+#define MSEG_UNIT_CEILING(X) MSEG_UNIT_FLOOR((X) + ~MSEG_UNIT_MASK)
#endif
@@ -104,7 +106,6 @@ int erts_have_sbmbc_alloc;
static Uint sys_alloc_carrier_size;
#if HAVE_ERTS_MSEG
static Uint max_mseg_carriers;
-static Uint mseg_unit_size;
#endif
#define ONE_GIGA (1000000000)
@@ -117,16 +118,47 @@ static Uint mseg_unit_size;
? ((CC).giga_no--, (CC).no = ONE_GIGA - 1) \
: (CC).no--)
-/* ... */
+/* Multi block carrier (MBC) memory layout in R16:
+
+Empty MBC:
+[Carrier_t|pad|Block_t L0T|fhdr| free... ]
+
+MBC after allocating first block:
+[Carrier_t|pad|Block_t 000| udata |pad|Block_t L0T|fhdr| free... ]
+
+MBC after allocating second block:
+[Carrier_t|pad|Block_t 000| udata |pad|Block_t 000| udata |pad|Block_t L0T|fhdr| free... ]
+
+MBC after deallocating first block:
+[Carrier_t|pad|Block_t 00T|fhdr| free |FreeBlkFtr_t|Block_t 0P0| udata |pad|Block_t L0T|fhdr| free... ]
+
+
+ udata = Allocated user data
+ pad = Padding to ensure correct alignment for user data
+ fhdr = Allocator specific header to keep track of free block
+ free = Unused free memory
+ T = This block is free (THIS_FREE_BLK_HDR_FLG)
+ P = Previous block is free (PREV_FREE_BLK_HDR_FLG)
+ L = Last block in carrier (LAST_BLK_HDR_FLG)
+*/
+
+/* Single block carrier (SBC):
+[Carrier_t|pad|Block_t 111| udata... ]
+*/
+
/* Blocks ... */
-#define SBC_BLK_FTR_FLG (((UWord) 1) << 0)
+#define UNUSED0_BLK_FTR_FLG (((UWord) 1) << 0)
#define UNUSED1_BLK_FTR_FLG (((UWord) 1) << 1)
#define UNUSED2_BLK_FTR_FLG (((UWord) 1) << 2)
-#define ABLK_HDR_SZ (sizeof(Block_t))
-#define FBLK_FTR_SZ (sizeof(UWord))
+#if MBC_ABLK_OFFSET_BITS
+# define ABLK_HDR_SZ (offsetof(Block_t,u))
+#else
+# define ABLK_HDR_SZ (sizeof(Block_t))
+#endif
+#define FBLK_FTR_SZ (sizeof(FreeBlkFtr_t))
#define UMEMSZ2BLKSZ(AP, SZ) \
(ABLK_HDR_SZ + (SZ) <= (AP)->min_block_size \
@@ -136,88 +168,181 @@ static Uint mseg_unit_size;
#define UMEM2BLK(P) ((Block_t *) (((char *) (P)) - ABLK_HDR_SZ))
#define BLK2UMEM(P) ((void *) (((char *) (P)) + ABLK_HDR_SZ))
-#define PREV_BLK_SZ(B) \
- ((UWord) (*(((UWord *) (B)) - 1) & SZ_MASK))
+#define PREV_BLK_SZ(B) ((UWord) (((FreeBlkFtr_t *)(B))[-1]))
#define SET_BLK_SZ_FTR(B, SZ) \
- (*((UWord *) (((char *) (B)) + (SZ) - sizeof(UWord))) = (SZ))
+ (((FreeBlkFtr_t *) (((char *) (B)) + (SZ)))[-1] = (SZ))
#define THIS_FREE_BLK_HDR_FLG (((UWord) 1) << 0)
#define PREV_FREE_BLK_HDR_FLG (((UWord) 1) << 1)
#define LAST_BLK_HDR_FLG (((UWord) 1) << 2)
-#define SET_BLK_SZ(B, SZ) \
+/* Special flag combo for (allocated) SBC blocks
+*/
+#define SBC_BLK_HDR_FLG (THIS_FREE_BLK_HDR_FLG | PREV_FREE_BLK_HDR_FLG | LAST_BLK_HDR_FLG)
+
+#define SET_MBC_ABLK_SZ(B, SZ) \
(ASSERT(((SZ) & FLG_MASK) == 0), \
- (*((Block_t *) (B)) = ((*((Block_t *) (B)) & FLG_MASK) | (SZ))))
-#define SET_BLK_FREE(B) \
- (*((Block_t *) (B)) |= THIS_FREE_BLK_HDR_FLG)
-#define SET_BLK_ALLOCED(B) \
- (*((Block_t *) (B)) &= ~THIS_FREE_BLK_HDR_FLG)
-#define SET_PREV_BLK_FREE(B) \
- (*((Block_t *) (B)) |= PREV_FREE_BLK_HDR_FLG)
+ (B)->bhdr = (((B)->bhdr) & ~MBC_ABLK_SZ_MASK) | (SZ))
+#define SET_MBC_FBLK_SZ(B, SZ) \
+ (ASSERT(((SZ) & FLG_MASK) == 0), \
+ (B)->bhdr = (((B)->bhdr) & ~MBC_FBLK_SZ_MASK) | (SZ))
+#define SET_SBC_BLK_SZ(B, SZ) \
+ (ASSERT(((SZ) & FLG_MASK) == 0), \
+ (B)->bhdr = (((B)->bhdr) & ~SBC_BLK_SZ_MASK) | (SZ))
+#define SET_PREV_BLK_FREE(AP,B) \
+ (ASSERT(!IS_MBC_FIRST_BLK(AP,B)), \
+ ASSERT(!IS_FREE_BLK(B)), \
+ (B)->bhdr |= PREV_FREE_BLK_HDR_FLG)
#define SET_PREV_BLK_ALLOCED(B) \
- (*((Block_t *) (B)) &= ~PREV_FREE_BLK_HDR_FLG)
+ ((B)->bhdr &= ~PREV_FREE_BLK_HDR_FLG)
#define SET_LAST_BLK(B) \
- (*((Block_t *) (B)) |= LAST_BLK_HDR_FLG)
+ ((B)->bhdr |= LAST_BLK_HDR_FLG)
#define SET_NOT_LAST_BLK(B) \
- (*((Block_t *) (B)) &= ~LAST_BLK_HDR_FLG)
+ ((B)->bhdr &= ~LAST_BLK_HDR_FLG)
#define SBH_THIS_FREE THIS_FREE_BLK_HDR_FLG
-#define SBH_THIS_ALLOCED ((UWord) 0)
#define SBH_PREV_FREE PREV_FREE_BLK_HDR_FLG
-#define SBH_PREV_ALLOCED ((UWord) 0)
#define SBH_LAST_BLK LAST_BLK_HDR_FLG
-#define SBH_NOT_LAST_BLK ((UWord) 0)
-#define SET_BLK_HDR(B, Sz, F) \
- (ASSERT(((Sz) & FLG_MASK) == 0), *((Block_t *) (B)) = ((Sz) | (F)))
+
+#if MBC_ABLK_OFFSET_BITS
+
+# define MBC_SZ_MAX_LIMIT ((((UWord)1 << MBC_ABLK_OFFSET_BITS) - 1) << MSEG_ALIGN_BITS)
+
+# define BLK_CARRIER_OFFSET(B, C) (((char*)(B) - (char*)(C)) >> MSEG_UNIT_SHIFT)
+
+# define SET_MBC_ABLK_HDR(B, Sz, F, C) \
+ (ASSERT(((Sz) & ~MBC_ABLK_SZ_MASK) == 0), \
+ ASSERT(!((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG))), \
+ (B)->bhdr = ((Sz) | (F) | (BLK_CARRIER_OFFSET(B,C) << MBC_ABLK_OFFSET_SHIFT)))
+
+# define SET_MBC_FBLK_HDR(B, Sz, F, C) \
+ (ASSERT(((Sz) & ~MBC_FBLK_SZ_MASK) == 0), \
+ ASSERT(((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG|PREV_FREE_BLK_HDR_FLG)) == THIS_FREE_BLK_HDR_FLG), \
+ (B)->bhdr = ((Sz) | (F)), \
+ (B)->u.carrier = (C))
+
+# define ABLK_TO_MBC(B) \
+ (ASSERT(IS_MBC_BLK(B) && IS_ALLOCED_BLK(B)), \
+ (Carrier_t*)((MSEG_UNIT_FLOOR((UWord)(B)) - \
+ (((B)->bhdr >> MBC_ABLK_OFFSET_SHIFT) << MSEG_UNIT_SHIFT))))
+
+# define FBLK_TO_MBC(B) \
+ (ASSERT(IS_MBC_BLK(B) && IS_FREE_BLK(B)), \
+ (B)->u.carrier)
+
+# define BLK_TO_MBC(B) (IS_FREE_BLK(B) ? FBLK_TO_MBC(B) : ABLK_TO_MBC(B))
+
+# define IS_MBC_FIRST_ABLK(AP,B) \
+ ((((UWord)(B) & ~MSEG_UNIT_MASK) == MBC_HEADER_SIZE(AP)) \
+ && ((B)->bhdr & MBC_ABLK_OFFSET_MASK) == 0)
+
+# define IS_MBC_FIRST_FBLK(AP,B) \
+ ((char*)(B) == (char*)((B)->u.carrier) + MBC_HEADER_SIZE(AP))
+
+# define IS_MBC_FIRST_BLK(AP,B) \
+ (IS_FREE_BLK(B) ? IS_MBC_FIRST_FBLK(AP,B) : IS_MBC_FIRST_ABLK(AP,B))
+
+# define SET_BLK_FREE(B) \
+ (ASSERT(!IS_PREV_BLK_FREE(B)), \
+ (B)->u.carrier = ABLK_TO_MBC(B), \
+ (B)->bhdr |= THIS_FREE_BLK_HDR_FLG, \
+ (B)->bhdr &= (MBC_ABLK_SZ_MASK|FLG_MASK))
+
+# define SET_BLK_ALLOCED(B) \
+ (ASSERT(((B)->bhdr & (MBC_ABLK_OFFSET_MASK|THIS_FREE_BLK_HDR_FLG)) == THIS_FREE_BLK_HDR_FLG), \
+ (B)->bhdr &= ~THIS_FREE_BLK_HDR_FLG, \
+ (B)->bhdr |= (BLK_CARRIER_OFFSET(B,(B)->u.carrier) << MBC_ABLK_OFFSET_SHIFT))
+
+#else /* !MBC_ABLK_OFFSET_BITS */
+
+# define MBC_SZ_MAX_LIMIT ((UWord)~0)
+
+# define SET_MBC_ABLK_HDR(B, Sz, F, C) \
+ (ASSERT(((Sz) & FLG_MASK) == 0), \
+ ASSERT(!((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG))), \
+ ASSERT((UWord)(F) < SBC_BLK_HDR_FLG), \
+ (B)->bhdr = ((Sz) | (F)), \
+ (B)->carrier = (C))
+
+# define SET_MBC_FBLK_HDR(B, Sz, F, C) \
+ (ASSERT(((Sz) & FLG_MASK) == 0), \
+ ASSERT(((UWord)(F) & (~FLG_MASK|THIS_FREE_BLK_HDR_FLG|PREV_FREE_BLK_HDR_FLG)) == THIS_FREE_BLK_HDR_FLG), \
+ (B)->bhdr = ((Sz) | (F)), \
+ (B)->carrier = (C))
+
+# define BLK_TO_MBC(B) ((B)->carrier)
+# define ABLK_TO_MBC(B) BLK_TO_MBC(B)
+# define FBLK_TO_MBC(B) BLK_TO_MBC(B)
+
+# define IS_MBC_FIRST_BLK(AP,B) \
+ ((char*)(B) == (char*)((B)->carrier) + MBC_HEADER_SIZE(AP))
+# define IS_MBC_FIRST_ABLK(AP,B) IS_MBC_FIRST_BLK(AP,B)
+# define IS_MBC_FIRST_FBLK(AP,B) IS_MBC_FIRST_BLK(AP,B)
+
+# define SET_BLK_FREE(B) \
+ (ASSERT(!IS_PREV_BLK_FREE(B)), \
+ (B)->bhdr |= THIS_FREE_BLK_HDR_FLG)
+
+# define SET_BLK_ALLOCED(B) \
+ ((B)->bhdr &= ~THIS_FREE_BLK_HDR_FLG)
+
+#endif /* !MBC_ABLK_OFFSET_BITS */
+
+#define SET_SBC_BLK_HDR(B, Sz) \
+ (ASSERT(((Sz) & FLG_MASK) == 0), (B)->bhdr = ((Sz) | (SBC_BLK_HDR_FLG)))
+
#define BLK_UMEM_SZ(B) \
(BLK_SZ(B) - (ABLK_HDR_SZ))
#define IS_PREV_BLK_FREE(B) \
- (*((Block_t *) (B)) & PREV_FREE_BLK_HDR_FLG)
+ ((B)->bhdr & PREV_FREE_BLK_HDR_FLG)
#define IS_PREV_BLK_ALLOCED(B) \
(!IS_PREV_BLK_FREE((B)))
#define IS_FREE_BLK(B) \
- (*((Block_t *) (B)) & THIS_FREE_BLK_HDR_FLG)
+ (ASSERT(!IS_SBC_BLK(B)), (B)->bhdr & THIS_FREE_BLK_HDR_FLG)
#define IS_ALLOCED_BLK(B) \
(!IS_FREE_BLK((B)))
#define IS_LAST_BLK(B) \
- (*((Block_t *) (B)) & LAST_BLK_HDR_FLG)
+ ((B)->bhdr & LAST_BLK_HDR_FLG)
#define IS_NOT_LAST_BLK(B) \
(!IS_LAST_BLK((B)))
#define GET_LAST_BLK_HDR_FLG(B) \
- (*((Block_t*) (B)) & LAST_BLK_HDR_FLG)
+ ((B)->bhdr & LAST_BLK_HDR_FLG)
#define GET_THIS_FREE_BLK_HDR_FLG(B) \
- (*((Block_t*) (B)) & THIS_FREE_BLK_HDR_FLG)
+ ((B)->bhdr & THIS_FREE_BLK_HDR_FLG)
#define GET_PREV_FREE_BLK_HDR_FLG(B) \
- (*((Block_t*) (B)) & PREV_FREE_BLK_HDR_FLG)
+ ((B)->bhdr & PREV_FREE_BLK_HDR_FLG)
#define GET_BLK_HDR_FLGS(B) \
- (*((Block_t*) (B)) & FLG_MASK)
-
-#define IS_FIRST_BLK(B) \
- (IS_PREV_BLK_FREE((B)) && (PREV_BLK_SZ((B)) == 0))
-#define IS_NOT_FIRST_BLK(B) \
- (!IS_FIRST_BLK((B)))
-
-#define SET_SBC_BLK_FTR(FTR) \
- ((FTR) = (0 | SBC_BLK_FTR_FLG))
-#define SET_MBC_BLK_FTR(FTR) \
- ((FTR) = 0)
+ ((B)->bhdr & FLG_MASK)
#define IS_SBC_BLK(B) \
- (IS_PREV_BLK_FREE((B)) && (((UWord *) (B))[-1] & SBC_BLK_FTR_FLG))
+ (((B)->bhdr & FLG_MASK) == SBC_BLK_HDR_FLG)
#define IS_MBC_BLK(B) \
(!IS_SBC_BLK((B)))
+#define MBC_BLK_SZ(B) (IS_FREE_BLK(B) ? MBC_FBLK_SZ(B) : MBC_ABLK_SZ(B))
+
#define NXT_BLK(B) \
- ((Block_t *) (((char *) (B)) + BLK_SZ((B))))
+ (ASSERT(IS_MBC_BLK(B)), \
+ (Block_t *) (((char *) (B)) + MBC_BLK_SZ((B))))
#define PREV_BLK(B) \
((Block_t *) (((char *) (B)) - PREV_BLK_SZ((B))))
+#define BLK_AFTER(B,Sz) \
+ ((Block_t *) (((char *) (B)) + (Sz)))
+
+#define BLK_SZ(B) ((B)->bhdr & (((B)->bhdr & THIS_FREE_BLK_HDR_FLG) ? MBC_FBLK_SZ_MASK : MBC_ABLK_SZ_MASK))
+
/* Carriers ... */
+#define SBC_HEADER_SIZE (UNIT_CEILING(sizeof(Carrier_t) + ABLK_HDR_SZ) \
+ - ABLK_HDR_SZ)
+#define MBC_HEADER_SIZE(AP) SBC_HEADER_SIZE
+
+
#define MSEG_CARRIER_HDR_FLAG (((UWord) 1) << 0)
#define SBC_CARRIER_HDR_FLAG (((UWord) 1) << 1)
@@ -226,20 +351,20 @@ static Uint mseg_unit_size;
#define SCH_MBC 0
#define SCH_SBC SBC_CARRIER_HDR_FLAG
-#define SET_CARRIER_HDR(C, Sz, F) \
- (ASSERT(((Sz) & FLG_MASK) == 0), (C)->chdr = ((Sz) | (F)))
+#define SET_CARRIER_HDR(C, Sz, F, AP) \
+ (ASSERT(((Sz) & FLG_MASK) == 0), (C)->chdr = ((Sz) | (F)), (C)->allctr = (AP))
-#define BLK2SBC(AP, B) \
- ((Carrier_t *) (((char *) (B)) - (AP)->sbc_header_size))
-#define FBLK2MBC(AP, B) \
- ((Carrier_t *) (((char *) (B)) - (AP)->mbc_header_size))
+#define BLK_TO_SBC(B) \
+ ((Carrier_t *) (((char *) (B)) - SBC_HEADER_SIZE))
+#define FIRST_BLK_TO_MBC(AP, B) \
+ ((Carrier_t *) (((char *) (B)) - MBC_HEADER_SIZE(AP)))
-#define MBC2FBLK(AP, P) \
- ((Block_t *) (((char *) (P)) + (AP)->mbc_header_size))
+#define MBC_TO_FIRST_BLK(AP, P) \
+ ((Block_t *) (((char *) (P)) + MBC_HEADER_SIZE(AP)))
#define SBC2BLK(AP, P) \
- ((Block_t *) (((char *) (P)) + (AP)->sbc_header_size))
+ ((Block_t *) (((char *) (P)) + SBC_HEADER_SIZE))
#define SBC2UMEM(AP, P) \
- ((void *) (((char *) (P)) + ((AP)->sbc_header_size + ABLK_HDR_SZ)))
+ ((void *) (((char *) (P)) + (SBC_HEADER_SIZE + ABLK_HDR_SZ)))
#define IS_MSEG_CARRIER(C) \
((C)->chdr & MSEG_CARRIER_HDR_FLAG)
@@ -250,15 +375,6 @@ static Uint mseg_unit_size;
#define IS_MB_CARRIER(C) \
(!IS_SB_CARRIER((C)))
-#define SET_MSEG_CARRIER(C) \
- ((C)->chdr |= MSEG_CARRIER_HDR_FLAG)
-#define SET_SYS_ALLOC_CARRIER(C) \
- ((C)->chdr &= ~MSEG_CARRIER_HDR_FLAG)
-#define SET_SB_CARRIER(C) \
- ((C)->chdr |= SBC_CARRIER_HDR_FLAG)
-#define SET_MB_CARRIER(C) \
- ((C)->chdr &= ~SBC_CARRIER_HDR_FLAG)
-
#define SET_CARRIER_SZ(C, SZ) \
(ASSERT(((SZ) & FLG_MASK) == 0), \
((C)->chdr = ((C)->chdr & FLG_MASK) | (SZ)))
@@ -506,11 +622,11 @@ static void mbc_free(Allctr_t *allctr, void *p);
#if HAVE_ERTS_MSEG
static ERTS_INLINE void *
-alcu_mseg_alloc(Allctr_t *allctr, Uint *size_p)
+alcu_mseg_alloc(Allctr_t *allctr, Uint *size_p, Uint flags)
{
void *res;
- res = erts_mseg_alloc_opt(allctr->alloc_no, size_p, &allctr->mseg_opt);
+ res = erts_mseg_alloc_opt(allctr->alloc_no, size_p, flags, &allctr->mseg_opt);
INC_CC(allctr->calls.mseg_alloc);
return res;
}
@@ -521,7 +637,7 @@ alcu_mseg_realloc(Allctr_t *allctr, void *seg, Uint old_size, Uint *new_size_p)
void *res;
res = erts_mseg_realloc_opt(allctr->alloc_no, seg, old_size, new_size_p,
- &allctr->mseg_opt);
+ ERTS_MSEG_FLG_NONE, &allctr->mseg_opt);
INC_CC(allctr->calls.mseg_realloc);
return res;
}
@@ -765,13 +881,9 @@ erts_alcu_fix_alloc_shrink(Allctr_t *allctr, erts_aint32_t flgs)
#define ERTS_ALCU_DD_FIX_TYPE_OFFS \
((sizeof(ErtsAllctrDDBlock_t)-1)/sizeof(UWord) + 1)
-#define ERTS_AU_PREF_ALLOC_IX_MASK \
- ((((UWord) 1) << ERTS_AU_PREF_ALLOC_BITS) - 1)
-#define ERTS_AU_PREF_ALLOC_SIZE_MASK \
- ((((UWord) 1) << (sizeof(UWord)*8 - ERTS_AU_PREF_ALLOC_BITS)) - 1)
-static ERTS_INLINE int
-get_pref_allctr(void *extra, Allctr_t **allctr)
+static ERTS_INLINE Allctr_t*
+get_pref_allctr(void *extra)
{
ErtsAllocatorThrSpec_t *tspec = (ErtsAllocatorThrSpec_t *) extra;
int pref_ix;
@@ -781,34 +893,33 @@ get_pref_allctr(void *extra, Allctr_t **allctr)
ASSERT(sizeof(UWord) == sizeof(Allctr_t *));
ASSERT(0 <= pref_ix && pref_ix < tspec->size);
- *allctr = tspec->allctr[pref_ix];
- return pref_ix;
+ return tspec->allctr[pref_ix];
}
-static ERTS_INLINE void *
-get_used_allctr(void *extra, void *p, Allctr_t **allctr, UWord *sizep)
+/* SMP note:
+ * get_used_allctr() must be safe WITHOUT locking the allocator while
+ * concurrent threads may be updating adjacent blocks.
+ * We rely on getting a consistent result (without atomic op) when reading
+ * the block header word even if a concurrent thread is updating
+ * the "PREV_FREE" flag bit.
+ */
+static ERTS_INLINE Allctr_t*
+get_used_allctr(void *extra, void *p, UWord *sizep)
{
- ErtsAllocatorThrSpec_t *tspec = (ErtsAllocatorThrSpec_t *) extra;
- void *ptr = (void *) (((char *) p) - sizeof(UWord));
- UWord ainfo = *((UWord *) ptr);
- int aix = (int) (ainfo & ERTS_AU_PREF_ALLOC_IX_MASK);
- *allctr = tspec->allctr[aix];
- if (sizep)
- *sizep = ((ainfo >> ERTS_AU_PREF_ALLOC_BITS)
- & ERTS_AU_PREF_ALLOC_SIZE_MASK);
- return ptr;
-}
+ Block_t* blk = UMEM2BLK(p);
+ Carrier_t* crr;
-static ERTS_INLINE void *
-put_used_allctr(void *p, int ix, UWord size)
-{
- UWord ainfo = (size >= ERTS_AU_PREF_ALLOC_SIZE_MASK
- ? ERTS_AU_PREF_ALLOC_SIZE_MASK
- : size);
- ainfo <<= ERTS_AU_PREF_ALLOC_BITS;
- ainfo |= (UWord) ix;
- *((UWord *) p) = ainfo;
- return (void *) (((char *) p) + sizeof(UWord));
+ if (IS_SBC_BLK(blk)) {
+ crr = BLK_TO_SBC(blk);
+ if (sizep)
+ *sizep = SBC_BLK_SZ(blk) - ABLK_HDR_SZ;
+ }
+ else {
+ crr = ABLK_TO_MBC(blk);
+ if (sizep)
+ *sizep = MBC_ABLK_SZ(blk) - ABLK_HDR_SZ;
+ }
+ return crr->allctr;
}
static void
@@ -1209,10 +1320,8 @@ mbc_alloc_block(Allctr_t *allctr, Uint size, Uint *blk_szp, Uint32 *alcu_flgsp)
if ((*alcu_flgsp) & ERTS_ALCU_FLG_SBMBC)
blk = create_sbmbc(allctr, get_blk_sz);
else {
-#if HALFWORD_HEAP
- blk = create_carrier(allctr, get_blk_sz, CFLG_MBC|CFLG_FORCE_MSEG);
-#else
blk = create_carrier(allctr, get_blk_sz, CFLG_MBC);
+#if !HALFWORD_HEAP && !HAVE_SUPER_ALIGNED_MB_CARRIERS
if (!blk) {
/* Emergency! We couldn't create the carrier as we wanted.
Try to place it in a sys_alloced sbc. */
@@ -1242,6 +1351,7 @@ mbc_alloc_finalize(Allctr_t *allctr,
Block_t *blk,
Uint org_blk_sz,
UWord flags,
+ Carrier_t *crr,
Uint want_blk_sz,
int valid_blk_info,
Uint32 alcu_flgs)
@@ -1262,22 +1372,18 @@ mbc_alloc_finalize(Allctr_t *allctr,
/* Shrink block... */
blk_sz = want_blk_sz;
nxt_blk_sz = org_blk_sz - blk_sz;
- SET_BLK_HDR(blk,
- blk_sz,
- SBH_THIS_ALLOCED|SBH_NOT_LAST_BLK|prev_free_flg);
+ SET_MBC_ABLK_HDR(blk, blk_sz, prev_free_flg, crr);
- nxt_blk = NXT_BLK(blk);
- SET_BLK_HDR(nxt_blk,
- nxt_blk_sz,
- (SBH_THIS_FREE
- | SBH_PREV_ALLOCED
- | (flags & LAST_BLK_HDR_FLG)));
+ nxt_blk = BLK_AFTER(blk, blk_sz);
+ SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz,
+ SBH_THIS_FREE|(flags & LAST_BLK_HDR_FLG),
+ crr);
if (!(flags & LAST_BLK_HDR_FLG)) {
SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz);
if (!valid_blk_info) {
- Block_t *nxt_nxt_blk = NXT_BLK(nxt_blk);
- SET_PREV_BLK_FREE(nxt_nxt_blk);
+ Block_t *nxt_nxt_blk = BLK_AFTER(nxt_blk, nxt_blk_sz);
+ SET_PREV_BLK_FREE(allctr, nxt_nxt_blk);
}
}
(*allctr->link_free_block)(allctr, nxt_blk, alcu_flgs);
@@ -1291,40 +1397,40 @@ mbc_alloc_finalize(Allctr_t *allctr,
|| nxt_blk == PREV_BLK(NXT_BLK(nxt_blk)));
ASSERT((flags & LAST_BLK_HDR_FLG)
|| IS_PREV_BLK_FREE(NXT_BLK(nxt_blk)));
- ASSERT(nxt_blk_sz == BLK_SZ(nxt_blk));
+ ASSERT(nxt_blk_sz == MBC_BLK_SZ(nxt_blk));
ASSERT(nxt_blk_sz % sizeof(Unit_t) == 0);
ASSERT(nxt_blk_sz >= allctr->min_block_size);
+ ASSERT(ABLK_TO_MBC(blk) == crr);
+ ASSERT(FBLK_TO_MBC(nxt_blk) == crr);
}
else {
+ ASSERT(org_blk_sz <= MBC_ABLK_SZ_MASK);
blk_sz = org_blk_sz;
if (flags & LAST_BLK_HDR_FLG) {
if (valid_blk_info)
SET_BLK_ALLOCED(blk);
else
- SET_BLK_HDR(blk,
- blk_sz,
- SBH_THIS_ALLOCED|SBH_LAST_BLK|prev_free_flg);
+ SET_MBC_ABLK_HDR(blk, blk_sz, SBH_LAST_BLK|prev_free_flg, crr);
}
else {
if (valid_blk_info)
SET_BLK_ALLOCED(blk);
else
- SET_BLK_HDR(blk,
- blk_sz,
- SBH_THIS_ALLOCED|SBH_NOT_LAST_BLK|prev_free_flg);
- nxt_blk = NXT_BLK(blk);
+ SET_MBC_ABLK_HDR(blk, blk_sz, prev_free_flg, crr);
+ nxt_blk = BLK_AFTER(blk, blk_sz);
SET_PREV_BLK_ALLOCED(nxt_blk);
}
ASSERT((flags & LAST_BLK_HDR_FLG)
? IS_LAST_BLK(blk)
: IS_NOT_LAST_BLK(blk));
+ ASSERT(ABLK_TO_MBC(blk) == crr);
}
STAT_MBC_BLK_ALLOC(allctr, blk_sz, alcu_flgs);
ASSERT(IS_ALLOCED_BLK(blk));
- ASSERT(blk_sz == BLK_SZ(blk));
+ ASSERT(blk_sz == MBC_BLK_SZ(blk));
ASSERT(blk_sz % sizeof(Unit_t) == 0);
ASSERT(blk_sz >= allctr->min_block_size);
ASSERT(blk_sz >= want_blk_sz);
@@ -1348,8 +1454,9 @@ mbc_alloc(Allctr_t *allctr, Uint size)
if (IS_MBC_BLK(blk))
mbc_alloc_finalize(allctr,
blk,
- BLK_SZ(blk),
+ MBC_FBLK_SZ(blk),
GET_BLK_HDR_FLGS(blk),
+ FBLK_TO_MBC(blk),
blk_sz,
1,
alcu_flgs);
@@ -1370,7 +1477,7 @@ mbc_free(Allctr_t *allctr, void *p)
ASSERT(p);
blk = UMEM2BLK(p);
- blk_sz = BLK_SZ(blk);
+ blk_sz = MBC_ABLK_SZ(blk);
if (blk_sz < allctr->sbmbc_threshold)
alcu_flgs |= ERTS_ALCU_FLG_SBMBC;
@@ -1381,17 +1488,18 @@ mbc_free(Allctr_t *allctr, void *p)
STAT_MBC_BLK_FREE(allctr, blk_sz, alcu_flgs);
- is_first_blk = IS_FIRST_BLK(blk);
+ is_first_blk = IS_MBC_FIRST_ABLK(allctr, blk);
is_last_blk = IS_LAST_BLK(blk);
- if (!is_first_blk && IS_PREV_BLK_FREE(blk)) {
+ if (IS_PREV_BLK_FREE(blk)) {
+ ASSERT(!is_first_blk);
/* Coalesce with previous block... */
blk = PREV_BLK(blk);
(*allctr->unlink_free_block)(allctr, blk, alcu_flgs);
- blk_sz += BLK_SZ(blk);
- is_first_blk = IS_FIRST_BLK(blk);
- SET_BLK_SZ(blk, blk_sz);
+ blk_sz += MBC_FBLK_SZ(blk);
+ is_first_blk = IS_MBC_FIRST_FBLK(allctr, blk);
+ SET_MBC_FBLK_SZ(blk, blk_sz);
}
else {
SET_BLK_FREE(blk);
@@ -1400,12 +1508,12 @@ mbc_free(Allctr_t *allctr, void *p)
if (is_last_blk)
SET_LAST_BLK(blk);
else {
- nxt_blk = NXT_BLK(blk);
+ nxt_blk = BLK_AFTER(blk, blk_sz);
if (IS_FREE_BLK(nxt_blk)) {
/* Coalesce with next block... */
(*allctr->unlink_free_block)(allctr, nxt_blk, alcu_flgs);
- blk_sz += BLK_SZ(nxt_blk);
- SET_BLK_SZ(blk, blk_sz);
+ blk_sz += MBC_FBLK_SZ(nxt_blk);
+ SET_MBC_FBLK_SZ(blk, blk_sz);
is_last_blk = IS_LAST_BLK(nxt_blk);
if (is_last_blk)
@@ -1416,26 +1524,26 @@ mbc_free(Allctr_t *allctr, void *p)
}
}
else {
- SET_PREV_BLK_FREE(nxt_blk);
+ SET_PREV_BLK_FREE(allctr, nxt_blk);
SET_NOT_LAST_BLK(blk);
SET_BLK_SZ_FTR(blk, blk_sz);
}
}
- ASSERT(is_last_blk ? IS_LAST_BLK(blk) : IS_NOT_LAST_BLK(blk));
- ASSERT(is_first_blk ? IS_FIRST_BLK(blk) : IS_NOT_FIRST_BLK(blk));
ASSERT(IS_FREE_BLK(blk));
+ ASSERT(!is_last_blk == !IS_LAST_BLK(blk));
+ ASSERT(!is_first_blk == !IS_MBC_FIRST_FBLK(allctr, blk));
ASSERT(is_first_blk || IS_PREV_BLK_ALLOCED(blk));
ASSERT(is_last_blk || IS_PREV_BLK_FREE(NXT_BLK(blk)));
- ASSERT(blk_sz == BLK_SZ(blk));
+ ASSERT(blk_sz == MBC_BLK_SZ(blk));
ASSERT(is_last_blk || blk == PREV_BLK(NXT_BLK(blk)));
ASSERT(blk_sz % sizeof(Unit_t) == 0);
ASSERT(IS_MBC_BLK(blk));
if (is_first_blk
&& is_last_blk
- && allctr->main_carrier != FBLK2MBC(allctr, blk)) {
+ && allctr->main_carrier != FIRST_BLK_TO_MBC(allctr, blk)) {
if (alcu_flgs & ERTS_ALCU_FLG_SBMBC)
destroy_sbmbc(allctr, blk);
else
@@ -1472,7 +1580,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
ASSERT(size < allctr->sbc_threshold);
blk = (Block_t *) UMEM2BLK(p);
- old_blk_sz = BLK_SZ(blk);
+ old_blk_sz = MBC_ABLK_SZ(blk);
ASSERT(old_blk_sz >= allctr->min_block_size);
@@ -1497,6 +1605,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
return p;
else if (blk_sz < old_blk_sz) {
/* Shrink block... */
+ Carrier_t* crr;
Block_t *nxt_nxt_blk;
Uint diff_sz_val = old_blk_sz - blk_sz;
Uint old_blk_sz_val = old_blk_sz;
@@ -1516,16 +1625,18 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
return NULL;
cand_blk_sz = old_blk_sz;
- if (!IS_PREV_BLK_FREE(blk) || IS_FIRST_BLK(blk))
+ if (!IS_PREV_BLK_FREE(blk)) {
cand_blk = blk;
+ }
else {
+ ASSERT(!IS_MBC_FIRST_ABLK(allctr, blk));
cand_blk = PREV_BLK(blk);
cand_blk_sz += PREV_BLK_SZ(blk);
}
if (!is_last_blk) {
- nxt_blk = NXT_BLK(blk);
+ nxt_blk = BLK_AFTER(blk, old_blk_sz);
if (IS_FREE_BLK(nxt_blk))
- cand_blk_sz += BLK_SZ(nxt_blk);
+ cand_blk_sz += MBC_FBLK_SZ(nxt_blk);
}
new_blk = (*allctr->get_free_block)(allctr,
@@ -1541,52 +1652,48 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
nxt_blk_sz = old_blk_sz - blk_sz;
- if ((is_last_blk || IS_ALLOCED_BLK(NXT_BLK(blk)))
+ if ((is_last_blk || IS_ALLOCED_BLK(BLK_AFTER(blk,old_blk_sz)))
&& (nxt_blk_sz < allctr->min_block_size))
return p;
HARD_CHECK_BLK_CARRIER(allctr, blk);
- SET_BLK_SZ(blk, blk_sz);
+ nxt_nxt_blk = BLK_AFTER(blk, old_blk_sz);
+
+ SET_MBC_ABLK_SZ(blk, blk_sz);
SET_NOT_LAST_BLK(blk);
- nxt_blk = NXT_BLK(blk);
- SET_BLK_HDR(nxt_blk,
- nxt_blk_sz,
- SBH_THIS_FREE|SBH_PREV_ALLOCED|SBH_NOT_LAST_BLK);
+ nxt_blk = BLK_AFTER(blk, blk_sz);
STAT_MBC_BLK_FREE(allctr, old_blk_sz, alcu_flgs);
STAT_MBC_BLK_ALLOC(allctr, blk_sz, alcu_flgs);
- ASSERT(BLK_SZ(blk) >= allctr->min_block_size);
+ ASSERT(MBC_BLK_SZ(blk) >= allctr->min_block_size);
- if (is_last_blk)
- SET_LAST_BLK(nxt_blk);
- else {
- nxt_nxt_blk = NXT_BLK(nxt_blk);
+ if (!is_last_blk) {
if (IS_FREE_BLK(nxt_nxt_blk)) {
/* Coalesce with next free block... */
- nxt_blk_sz += BLK_SZ(nxt_nxt_blk);
+ nxt_blk_sz += MBC_FBLK_SZ(nxt_nxt_blk);
(*allctr->unlink_free_block)(allctr, nxt_nxt_blk, alcu_flgs);
- SET_BLK_SZ(nxt_blk, nxt_blk_sz);
- is_last_blk = IS_LAST_BLK(nxt_nxt_blk);
- if (is_last_blk)
- SET_LAST_BLK(nxt_blk);
- else
- SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz);
+ is_last_blk = GET_LAST_BLK_HDR_FLG(nxt_nxt_blk);
}
else {
- SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz);
- SET_PREV_BLK_FREE(nxt_nxt_blk);
+ SET_PREV_BLK_FREE(allctr, nxt_nxt_blk);
}
+ SET_BLK_SZ_FTR(nxt_blk, nxt_blk_sz);
}
+ crr = ABLK_TO_MBC(blk);
+ SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz,
+ SBH_THIS_FREE | (is_last_blk ? SBH_LAST_BLK : 0),
+ crr);
+
(*allctr->link_free_block)(allctr, nxt_blk, alcu_flgs);
ASSERT(IS_ALLOCED_BLK(blk));
- ASSERT(blk_sz == BLK_SZ(blk));
+ ASSERT(blk_sz == MBC_BLK_SZ(blk));
ASSERT(blk_sz % sizeof(Unit_t) == 0);
ASSERT(blk_sz >= allctr->min_block_size);
ASSERT(blk_sz >= size + ABLK_HDR_SZ);
@@ -1594,14 +1701,15 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
ASSERT(IS_FREE_BLK(nxt_blk));
ASSERT(IS_PREV_BLK_ALLOCED(nxt_blk));
- ASSERT(nxt_blk_sz == BLK_SZ(nxt_blk));
+ ASSERT(nxt_blk_sz == MBC_BLK_SZ(nxt_blk));
ASSERT(nxt_blk_sz % sizeof(Unit_t) == 0);
ASSERT(nxt_blk_sz >= allctr->min_block_size);
ASSERT(IS_MBC_BLK(nxt_blk));
ASSERT(is_last_blk ? IS_LAST_BLK(nxt_blk) : IS_NOT_LAST_BLK(nxt_blk));
ASSERT(is_last_blk || nxt_blk == PREV_BLK(NXT_BLK(nxt_blk)));
ASSERT(is_last_blk || IS_PREV_BLK_FREE(NXT_BLK(nxt_blk)));
-
+ ASSERT(FBLK_TO_MBC(nxt_blk) == crr);
+
HARD_CHECK_BLK_CARRIER(allctr, blk);
return p;
@@ -1610,8 +1718,8 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
/* Need larger block... */
if (!is_last_blk) {
- nxt_blk = NXT_BLK(blk);
- nxt_blk_sz = BLK_SZ(nxt_blk);
+ nxt_blk = BLK_AFTER(blk, old_blk_sz);
+ nxt_blk_sz = MBC_BLK_SZ(nxt_blk);
if (IS_FREE_BLK(nxt_blk) && get_blk_sz <= old_blk_sz + nxt_blk_sz) {
/* Grow into next block... */
@@ -1624,7 +1732,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
if (nxt_blk_sz < allctr->min_block_size) {
blk_sz += nxt_blk_sz;
- SET_BLK_SZ(blk, blk_sz);
+ SET_MBC_ABLK_SZ(blk, blk_sz);
if (is_last_blk) {
SET_LAST_BLK(blk);
@@ -1633,21 +1741,20 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
#endif
}
else {
- nxt_blk = NXT_BLK(blk);
+ nxt_blk = BLK_AFTER(blk, blk_sz);
SET_PREV_BLK_ALLOCED(nxt_blk);
#ifdef DEBUG
is_last_blk = IS_LAST_BLK(nxt_blk);
- nxt_blk_sz = BLK_SZ(nxt_blk);
+ nxt_blk_sz = MBC_BLK_SZ(nxt_blk);
#endif
}
}
else {
- SET_BLK_SZ(blk, blk_sz);
+ Carrier_t* crr = ABLK_TO_MBC(blk);
+ SET_MBC_ABLK_SZ(blk, blk_sz);
- nxt_blk = NXT_BLK(blk);
- SET_BLK_HDR(nxt_blk,
- nxt_blk_sz,
- SBH_THIS_FREE|SBH_PREV_ALLOCED|SBH_NOT_LAST_BLK);
+ nxt_blk = BLK_AFTER(blk, blk_sz);
+ SET_MBC_FBLK_HDR(nxt_blk, nxt_blk_sz, SBH_THIS_FREE, crr);
if (is_last_blk)
SET_LAST_BLK(nxt_blk);
@@ -1657,6 +1764,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
(*allctr->link_free_block)(allctr, nxt_blk, alcu_flgs);
ASSERT(IS_FREE_BLK(nxt_blk));
+ ASSERT(FBLK_TO_MBC(nxt_blk) == crr);
}
STAT_MBC_BLK_FREE(allctr, old_blk_sz, alcu_flgs);
@@ -1664,14 +1772,14 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
ASSERT(IS_ALLOCED_BLK(blk));
- ASSERT(blk_sz == BLK_SZ(blk));
+ ASSERT(blk_sz == MBC_BLK_SZ(blk));
ASSERT(blk_sz % sizeof(Unit_t) == 0);
ASSERT(blk_sz >= allctr->min_block_size);
ASSERT(blk_sz >= size + ABLK_HDR_SZ);
ASSERT(IS_MBC_BLK(blk));
ASSERT(!nxt_blk || IS_PREV_BLK_ALLOCED(nxt_blk));
- ASSERT(!nxt_blk || nxt_blk_sz == BLK_SZ(nxt_blk));
+ ASSERT(!nxt_blk || nxt_blk_sz == MBC_BLK_SZ(nxt_blk));
ASSERT(!nxt_blk || nxt_blk_sz % sizeof(Unit_t) == 0);
ASSERT(!nxt_blk || nxt_blk_sz >= allctr->min_block_size);
ASSERT(!nxt_blk || IS_MBC_BLK(nxt_blk));
@@ -1696,18 +1804,19 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
/* Need to grow in another block */
- if (!IS_PREV_BLK_FREE(blk) || IS_FIRST_BLK(blk)) {
+ if (!IS_PREV_BLK_FREE(blk)) {
cand_blk = NULL;
cand_blk_sz = 0;
}
else {
+ ASSERT(!IS_MBC_FIRST_ABLK(allctr, blk));
cand_blk = PREV_BLK(blk);
cand_blk_sz = old_blk_sz + PREV_BLK_SZ(blk);
if (!is_last_blk) {
- nxt_blk = NXT_BLK(blk);
+ nxt_blk = BLK_AFTER(blk, old_blk_sz);
if (IS_FREE_BLK(nxt_blk))
- cand_blk_sz += BLK_SZ(nxt_blk);
+ cand_blk_sz += MBC_FBLK_SZ(nxt_blk);
}
}
@@ -1743,8 +1852,9 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
if (new_blk) {
mbc_alloc_finalize(allctr,
new_blk,
- BLK_SZ(new_blk),
+ MBC_FBLK_SZ(new_blk),
GET_BLK_HDR_FLGS(new_blk),
+ FBLK_TO_MBC(new_blk),
blk_sz,
1,
alcu_flgs);
@@ -1754,6 +1864,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
return new_p;
}
else {
+ Carrier_t* crr;
Uint new_blk_sz;
UWord new_blk_flgs;
Uint prev_blk_sz;
@@ -1774,10 +1885,10 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
if (is_last_blk)
new_blk_flgs |= LAST_BLK_HDR_FLG;
else {
- nxt_blk = NXT_BLK(blk);
+ nxt_blk = BLK_AFTER(blk, old_blk_sz);
if (IS_FREE_BLK(nxt_blk)) {
new_blk_flgs |= GET_LAST_BLK_HDR_FLG(nxt_blk);
- new_blk_sz += BLK_SZ(nxt_blk);
+ new_blk_sz += MBC_FBLK_SZ(nxt_blk);
(*allctr->unlink_free_block)(allctr, nxt_blk, alcu_flgs);
}
}
@@ -1790,6 +1901,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
new_p = BLK2UMEM(new_blk);
blk_cpy_sz = MIN(blk_sz, old_blk_sz);
+ crr = FBLK_TO_MBC(new_blk);
if (prev_blk_sz >= blk_cpy_sz)
sys_memcpy(new_p, p, blk_cpy_sz - ABLK_HDR_SZ);
@@ -1800,6 +1912,7 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
new_blk,
new_blk_sz,
new_blk_flgs,
+ crr,
blk_sz,
0,
alcu_flgs);
@@ -1815,35 +1928,40 @@ mbc_realloc(Allctr_t *allctr, void *p, Uint size, Uint32 alcu_flgs)
#ifdef DEBUG
#if HAVE_ERTS_MSEG
-#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ) ASSERT((CSZ) % mseg_unit_size == 0)
+#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ) ASSERT((CSZ) % MSEG_UNIT_SZ == 0)
#else
#define ASSERT_MSEG_UNIT_SIZE_MULTIPLE(CSZ)
#endif
-#define CHECK_1BLK_CARRIER(A, SBC, MSEGED, C, CSZ, B, BSZ) \
-do { \
- ASSERT(IS_FIRST_BLK((B))); \
- ASSERT(IS_LAST_BLK((B))); \
- ASSERT((CSZ) == CARRIER_SZ((C))); \
- ASSERT((BSZ) == BLK_SZ((B))); \
- ASSERT((BSZ) % sizeof(Unit_t) == 0); \
- if ((SBC)) { \
- ASSERT(IS_SBC_BLK((B))); \
- ASSERT(IS_SB_CARRIER((C))); \
- } \
- else { \
- ASSERT(IS_MBC_BLK((B))); \
- ASSERT(IS_MB_CARRIER((C))); \
- } \
- if ((MSEGED)) { \
- ASSERT(IS_MSEG_CARRIER((C))); \
- ASSERT_MSEG_UNIT_SIZE_MULTIPLE((CSZ)); \
- } \
- else { \
- ASSERT(IS_SYS_ALLOC_CARRIER((C))); \
- ASSERT((CSZ) % sizeof(Unit_t) == 0); \
- } \
-} while (0)
+static void CHECK_1BLK_CARRIER(Allctr_t* A, int SBC, int MSEGED, Carrier_t* C,
+ UWord CSZ, Block_t* B, UWord BSZ)
+{
+ ASSERT(IS_LAST_BLK((B)));
+ ASSERT((CSZ) == CARRIER_SZ((C)));
+ ASSERT((BSZ) % sizeof(Unit_t) == 0);
+ if ((SBC)) {
+ ASSERT((BSZ) == SBC_BLK_SZ((B)));
+ ASSERT((char*)B == (char*)C + SBC_HEADER_SIZE);
+ ASSERT(IS_SBC_BLK((B)));
+ ASSERT(IS_SB_CARRIER((C)));
+ }
+ else {
+ ASSERT(IS_FREE_BLK(B));
+ ASSERT((BSZ) == MBC_FBLK_SZ((B)));
+ ASSERT(IS_MBC_FIRST_FBLK(A, (B)));
+ ASSERT(IS_MBC_BLK((B)));
+ ASSERT(IS_MB_CARRIER((C)));
+ ASSERT(FBLK_TO_MBC(B) == (C));
+ }
+ if ((MSEGED)) {
+ ASSERT(IS_MSEG_CARRIER((C)));
+ ASSERT_MSEG_UNIT_SIZE_MULTIPLE((CSZ));
+ }
+ else {
+ ASSERT(IS_SYS_ALLOC_CARRIER((C)));
+ ASSERT((CSZ) % sizeof(Unit_t) == 0);
+ }
+}
#else
#define CHECK_1BLK_CARRIER(A, SBC, MSEGED, C, CSZ, B, BSZ)
@@ -1865,37 +1983,18 @@ create_sbmbc(Allctr_t *allctr, Uint umem_sz)
crr = erts_alloc(ERTS_ALC_T_SBMBC, crr_sz);
INC_CC(allctr->calls.sbmbc_alloc);
- SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC);
-
- blk = MBC2FBLK(allctr, crr);
+ SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC, allctr);
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz -= sizeof(UWord);
-#endif
+ blk = MBC_TO_FIRST_BLK(allctr, crr);
- blk_sz = UNIT_FLOOR(crr_sz - allctr->mbc_header_size);
+ blk_sz = UNIT_FLOOR(crr_sz - MBC_HEADER_SIZE(allctr));
- SET_MBC_BLK_FTR(((UWord *) blk)[-1]);
- SET_BLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_PREV_FREE|SBH_LAST_BLK);
-
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- *((Carrier_t **) NXT_BLK(blk)) = crr;
-#endif
+ SET_MBC_FBLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_LAST_BLK, crr);
link_carrier(&allctr->sbmbc_list, crr);
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz += sizeof(UWord);
-#endif
-
STAT_SBMBC_ALLOC(allctr, crr_sz);
CHECK_1BLK_CARRIER(allctr, 0, 0, crr, crr_sz, blk, blk_sz);
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz -= sizeof(UWord);
-#endif
if (allctr->creating_mbc)
(*allctr->creating_mbc)(allctr, crr, ERTS_ALCU_FLG_SBMBC);
@@ -1909,11 +2008,10 @@ destroy_sbmbc(Allctr_t *allctr, Block_t *blk)
Uint crr_sz;
Carrier_t *crr;
- ASSERT(IS_FIRST_BLK(blk));
-
ASSERT(IS_MBC_BLK(blk));
+ ASSERT(IS_MBC_FIRST_FBLK(allctr, blk));
- crr = FBLK2MBC(allctr, blk);
+ crr = FIRST_BLK_TO_MBC(allctr, blk);
crr_sz = CARRIER_SZ(crr);
#ifdef DEBUG
@@ -1952,14 +2050,25 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
Uint blk_sz, bcrr_sz, crr_sz;
#if HAVE_ERTS_MSEG
int have_tried_sys_alloc = 0, have_tried_mseg = 0;
+ Uint mseg_flags;
#endif
#ifdef DEBUG
int is_mseg = 0;
#endif
+#if HALFWORD_HEAP
+ flags |= CFLG_FORCE_MSEG;
+#elif HAVE_SUPER_ALIGNED_MB_CARRIERS
+ if (flags & CFLG_MBC) {
+ flags |= CFLG_FORCE_MSEG;
+ }
+#endif
+
ASSERT((flags & CFLG_SBC && !(flags & CFLG_MBC))
|| (flags & CFLG_MBC && !(flags & CFLG_SBC)));
+ ASSERT(!(flags & CFLG_FORCE_MSEG && flags & CFLG_FORCE_SYS_ALLOC));
+
blk_sz = UMEMSZ2BLKSZ(allctr, umem_sz);
#if HAVE_ERTS_MSEG
@@ -1974,29 +2083,27 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
if (allctr->sbcs.curr.norm.mseg.no >= allctr->max_mseg_sbcs)
goto try_sys_alloc;
}
+#if !HAVE_SUPER_ALIGNED_MB_CARRIERS
else {
if (allctr->mbcs.curr.norm.mseg.no >= allctr->max_mseg_mbcs)
goto try_sys_alloc;
}
+#endif
try_mseg:
if (flags & CFLG_SBC) {
- crr_sz = blk_sz + allctr->sbc_header_size;
+ crr_sz = blk_sz + SBC_HEADER_SIZE;
+ mseg_flags = ERTS_MSEG_FLG_NONE;
}
else {
crr_sz = (*allctr->get_next_mbc_size)(allctr);
- if (crr_sz < allctr->mbc_header_size + blk_sz)
- crr_sz = allctr->mbc_header_size + blk_sz;
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz += sizeof(UWord);
-#endif
+ if (crr_sz < MBC_HEADER_SIZE(allctr) + blk_sz)
+ crr_sz = MBC_HEADER_SIZE(allctr) + blk_sz;
+ mseg_flags = ERTS_MSEG_FLG_2POW;
}
- crr_sz = MSEG_UNIT_CEILING(crr_sz);
- ASSERT(crr_sz % mseg_unit_size == 0);
- crr = (Carrier_t *) alcu_mseg_alloc(allctr, &crr_sz);
+ crr = (Carrier_t *) alcu_mseg_alloc(allctr, &crr_sz, mseg_flags);
if (!crr) {
have_tried_mseg = 1;
if (!(have_tried_sys_alloc || flags & CFLG_FORCE_MSEG))
@@ -2008,32 +2115,31 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
is_mseg = 1;
#endif
if (flags & CFLG_SBC) {
- SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_SBC);
+ SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_SBC, allctr);
STAT_MSEG_SBC_ALLOC(allctr, crr_sz, blk_sz);
goto sbc_final_touch;
}
else {
- SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_MBC);
+#ifndef ARCH_64
+ ASSERT(crr_sz <= MBC_SZ_MAX_LIMIT);
+#endif
+ SET_CARRIER_HDR(crr, crr_sz, SCH_MSEG|SCH_MBC, allctr);
STAT_MSEG_MBC_ALLOC(allctr, crr_sz);
goto mbc_final_touch;
}
try_sys_alloc:
+
#endif /* #if HAVE_ERTS_MSEG */
if (flags & CFLG_SBC) {
- bcrr_sz = blk_sz + allctr->sbc_header_size;
+ bcrr_sz = blk_sz + SBC_HEADER_SIZE;
}
else {
- bcrr_sz = allctr->mbc_header_size + blk_sz;
+ bcrr_sz = MBC_HEADER_SIZE(allctr) + blk_sz;
if (!(flags & CFLG_MAIN_CARRIER)
&& bcrr_sz < allctr->smallest_mbc_size)
bcrr_sz = allctr->smallest_mbc_size;
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- bcrr_sz += sizeof(UWord);
-#endif
-
}
crr_sz = (flags & CFLG_FORCE_SIZE
@@ -2057,7 +2163,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
}
}
if (flags & CFLG_SBC) {
- SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_SBC);
+ SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_SBC, allctr);
STAT_SYS_ALLOC_SBC_ALLOC(allctr, crr_sz, blk_sz);
#if HAVE_ERTS_MSEG
@@ -2066,8 +2172,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
blk = SBC2BLK(allctr, crr);
- SET_SBC_BLK_FTR(((UWord *) blk)[-1]);
- SET_BLK_HDR(blk, blk_sz, SBH_THIS_ALLOCED|SBH_PREV_FREE|SBH_LAST_BLK);
+ SET_SBC_BLK_HDR(blk, blk_sz);
link_carrier(&allctr->sbc_list, crr);
@@ -2075,28 +2180,18 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
}
else {
- SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC);
+ SET_CARRIER_HDR(crr, crr_sz, SCH_SYS_ALLOC|SCH_MBC, allctr);
STAT_SYS_ALLOC_MBC_ALLOC(allctr, crr_sz);
#if HAVE_ERTS_MSEG
mbc_final_touch:
#endif
- blk = MBC2FBLK(allctr, crr);
-
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz -= sizeof(UWord);
-#endif
-
- blk_sz = UNIT_FLOOR(crr_sz - allctr->mbc_header_size);
+ blk = MBC_TO_FIRST_BLK(allctr, crr);
- SET_MBC_BLK_FTR(((UWord *) blk)[-1]);
- SET_BLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_PREV_FREE|SBH_LAST_BLK);
+ blk_sz = UNIT_FLOOR(crr_sz - MBC_HEADER_SIZE(allctr));
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- *((Carrier_t **) NXT_BLK(blk)) = crr;
-#endif
+ SET_MBC_FBLK_HDR(blk, blk_sz, SBH_THIS_FREE|SBH_LAST_BLK, crr);
if (flags & CFLG_MAIN_CARRIER) {
ASSERT(!allctr->main_carrier);
@@ -2105,15 +2200,7 @@ create_carrier(Allctr_t *allctr, Uint umem_sz, UWord flags)
link_carrier(&allctr->mbc_list, crr);
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz += sizeof(UWord);
-#endif
CHECK_1BLK_CARRIER(allctr, 0, is_mseg, crr, crr_sz, blk, blk_sz);
-#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
- if (allctr->mbc_header_size % sizeof(Unit_t) == 0)
- crr_sz -= sizeof(UWord);
-#endif
if (allctr->creating_mbc)
(*allctr->creating_mbc)(allctr, crr, 0);
@@ -2142,8 +2229,8 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
HARD_CHECK_BLK_CARRIER(allctr, old_blk);
- old_blk_sz = BLK_SZ(old_blk);
- old_crr = BLK2SBC(allctr, old_blk);
+ old_blk_sz = SBC_BLK_SZ(old_blk);
+ old_crr = BLK_TO_SBC(old_blk);
old_crr_sz = CARRIER_SZ(old_crr);
ASSERT(IS_SB_CARRIER(old_crr));
ASSERT(IS_SBC_BLK(old_blk));
@@ -2157,7 +2244,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
if (!(flags & CFLG_FORCE_SYS_ALLOC)) {
- new_crr_sz = new_blk_sz + allctr->sbc_header_size;
+ new_crr_sz = new_blk_sz + SBC_HEADER_SIZE;
new_crr_sz = MSEG_UNIT_CEILING(new_crr_sz);
new_crr = (Carrier_t *) alcu_mseg_realloc(allctr,
old_crr,
@@ -2166,7 +2253,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
if (new_crr) {
SET_CARRIER_SZ(new_crr, new_crr_sz);
new_blk = SBC2BLK(allctr, new_crr);
- SET_BLK_SZ(new_blk, new_blk_sz);
+ SET_SBC_BLK_SZ(new_blk, new_blk_sz);
STAT_MSEG_SBC_ALLOC(allctr, new_crr_sz, new_blk_sz);
relink_carrier(&allctr->sbc_list, new_crr);
CHECK_1BLK_CARRIER(allctr, 1, 1, new_crr, new_crr_sz,
@@ -2174,6 +2261,11 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
DEBUG_SAVE_ALIGNMENT(new_crr);
return new_blk;
}
+#if HALFWORD_HEAP
+ /* Old carrier unchanged; restore stat */
+ STAT_MSEG_SBC_ALLOC(allctr, old_crr_sz, old_blk_sz);
+ return NULL;
+#endif
create_flags |= CFLG_FORCE_SYS_ALLOC; /* since mseg_realloc()
failed */
}
@@ -2196,7 +2288,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
else {
if (!(flags & CFLG_FORCE_MSEG)) {
#endif /* #if HAVE_ERTS_MSEG */
- new_bcrr_sz = new_blk_sz + allctr->sbc_header_size;
+ new_bcrr_sz = new_blk_sz + SBC_HEADER_SIZE;
new_crr_sz = (flags & CFLG_FORCE_SIZE
? UNIT_CEILING(new_bcrr_sz)
: SYS_ALLOC_CARRIER_CEILING(new_bcrr_sz));
@@ -2208,7 +2300,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
sys_realloc_success:
SET_CARRIER_SZ(new_crr, new_crr_sz);
new_blk = SBC2BLK(allctr, new_crr);
- SET_BLK_SZ(new_blk, new_blk_sz);
+ SET_SBC_BLK_SZ(new_blk, new_blk_sz);
STAT_SYS_ALLOC_SBC_FREE(allctr, old_crr_sz, old_blk_sz);
STAT_SYS_ALLOC_SBC_ALLOC(allctr, new_crr_sz, new_blk_sz);
relink_carrier(&allctr->sbc_list, new_crr);
@@ -2218,7 +2310,7 @@ resize_carrier(Allctr_t *allctr, Block_t *old_blk, Uint umem_sz, UWord flags)
return new_blk;
}
else if (new_crr_sz > UNIT_CEILING(new_bcrr_sz)) {
- new_crr_sz = new_blk_sz + allctr->sbc_header_size;
+ new_crr_sz = new_blk_sz + SBC_HEADER_SIZE;
new_crr_sz = UNIT_CEILING(new_crr_sz);
new_crr = (Carrier_t *) alcu_sys_realloc(allctr,
(void *) old_crr,
@@ -2262,11 +2354,9 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk)
Uint is_mseg = 0;
#endif
- ASSERT(IS_FIRST_BLK(blk));
-
if (IS_SBC_BLK(blk)) {
- Uint blk_sz = BLK_SZ(blk);
- crr = BLK2SBC(allctr, blk);
+ Uint blk_sz = SBC_BLK_SZ(blk);
+ crr = BLK_TO_SBC(blk);
crr_sz = CARRIER_SZ(crr);
ASSERT(IS_LAST_BLK(blk));
@@ -2276,7 +2366,7 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk)
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(crr)) {
is_mseg++;
- ASSERT(crr_sz % mseg_unit_size == 0);
+ ASSERT(crr_sz % MSEG_UNIT_SZ == 0);
STAT_MSEG_SBC_FREE(allctr, crr_sz, blk_sz);
}
else
@@ -2287,7 +2377,8 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk)
}
else {
- crr = FBLK2MBC(allctr, blk);
+ ASSERT(IS_MBC_FIRST_FBLK(allctr, blk));
+ crr = FIRST_BLK_TO_MBC(allctr, blk);
crr_sz = CARRIER_SZ(crr);
#ifdef DEBUG
@@ -2305,7 +2396,7 @@ destroy_carrier(Allctr_t *allctr, Block_t *blk)
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(crr)) {
is_mseg++;
- ASSERT(crr_sz % mseg_unit_size == 0);
+ ASSERT(crr_sz % MSEG_UNIT_SZ == 0);
STAT_MSEG_MBC_FREE(allctr, crr_sz);
}
else
@@ -3430,12 +3521,7 @@ do_erts_alcu_alloc(ErtsAlcType_t type, void *extra, Uint size)
if (allctr->dd.use)
ERTS_ALCU_HANDLE_DD_IN_OP(allctr, 1);
#endif
-#if HALFWORD_HEAP
- blk = create_carrier(allctr, size,
- CFLG_SBC | CFLG_FORCE_MSEG);
-#else
blk = create_carrier(allctr, size, CFLG_SBC);
-#endif
res = blk ? BLK2UMEM(blk) : NULL;
}
else
@@ -3506,24 +3592,20 @@ erts_alcu_alloc_thr_spec(ErtsAlcType_t type, void *extra, Uint size)
void *
erts_alcu_alloc_thr_pref(ErtsAlcType_t type, void *extra, Uint size)
{
- int pref_ix;
Allctr_t *pref_allctr;
void *res;
- pref_ix = get_pref_allctr(extra, &pref_allctr);
+ pref_allctr = get_pref_allctr(extra);
if (pref_allctr->thread_safe)
erts_mtx_lock(&pref_allctr->mutex);
ERTS_ALCU_DBG_CHK_THR_ACCESS(pref_allctr);
- res = do_erts_alcu_alloc(type, pref_allctr, size + sizeof(UWord));
+ res = do_erts_alcu_alloc(type, pref_allctr, size);
if (pref_allctr->thread_safe)
erts_mtx_unlock(&pref_allctr->mutex);
- if (res)
- res = put_used_allctr(res, pref_ix, size);
-
DEBUG_CHECK_ALIGNMENT(res);
@@ -3644,21 +3726,20 @@ erts_alcu_free_thr_pref(ErtsAlcType_t type, void *extra, void *p)
{
if (p) {
Allctr_t *pref_allctr, *used_allctr;
- void *ptr;
- get_pref_allctr(extra, &pref_allctr);
- ptr = get_used_allctr(extra, p, &used_allctr, NULL);
+ pref_allctr = get_pref_allctr(extra);
+ used_allctr = get_used_allctr(extra, p, NULL);
if (pref_allctr != used_allctr)
enqueue_dealloc_other_instance(type,
used_allctr,
- ptr,
+ p,
(used_allctr->dd.ix
- pref_allctr->dd.ix));
else {
if (used_allctr->thread_safe)
erts_mtx_lock(&used_allctr->mutex);
ERTS_ALCU_DBG_CHK_THR_ACCESS(used_allctr);
- do_erts_alcu_free(type, used_allctr, ptr);
+ do_erts_alcu_free(type, used_allctr, p);
if (used_allctr->thread_safe)
erts_mtx_unlock(&used_allctr->mutex);
}
@@ -3739,13 +3820,13 @@ do_erts_alcu_realloc(ErtsAlcType_t type,
if (IS_MBC_BLK(blk))
res = mbc_realloc(allctr, p, size, alcu_flgs);
else {
- Uint used_sz = allctr->sbc_header_size + ABLK_HDR_SZ + size;
+ Uint used_sz = SBC_HEADER_SIZE + ABLK_HDR_SZ + size;
Uint crr_sz;
Uint diff_sz_val;
Uint crr_sz_val;
#if HAVE_ERTS_MSEG
- if (IS_SYS_ALLOC_CARRIER(BLK2SBC(allctr, blk)))
+ if (IS_SYS_ALLOC_CARRIER(BLK_TO_SBC(blk)))
#endif
crr_sz = SYS_ALLOC_CARRIER_CEILING(used_sz);
#if HAVE_ERTS_MSEG
@@ -3775,7 +3856,7 @@ do_erts_alcu_realloc(ErtsAlcType_t type,
if (res) {
sys_memcpy((void*) res,
(void*) p,
- MIN(BLK_SZ(blk) - ABLK_HDR_SZ, size));
+ MIN(SBC_BLK_SZ(blk) - ABLK_HDR_SZ, size));
destroy_carrier(allctr, blk);
}
}
@@ -3798,16 +3879,12 @@ do_erts_alcu_realloc(ErtsAlcType_t type,
else if (alcu_flgs & ERTS_ALCU_FLG_FAIL_REALLOC_MOVE)
return NULL;
else {
-#if HALFWORD_HEAP
- new_blk = create_carrier(allctr, size, CFLG_SBC | CFLG_FORCE_MSEG);
-#else
new_blk = create_carrier(allctr, size, CFLG_SBC);
-#endif
if (new_blk) {
res = BLK2UMEM(new_blk);
sys_memcpy((void *) res,
(void *) p,
- MIN(BLK_SZ(blk) - ABLK_HDR_SZ, size));
+ MIN(MBC_ABLK_SZ(blk) - ABLK_HDR_SZ, size));
mbc_free(allctr, p);
}
else
@@ -3966,16 +4043,15 @@ static ERTS_INLINE void *
realloc_thr_pref(ErtsAlcType_t type, void *extra, void *p, Uint size,
int force_move)
{
- int pref_ix;
- void *ptr, *res;
+ void *res;
Allctr_t *pref_allctr, *used_allctr;
UWord old_user_size;
if (!p)
return erts_alcu_alloc_thr_pref(type, extra, size);
- pref_ix = get_pref_allctr(extra, &pref_allctr);
- ptr = get_used_allctr(extra, p, &used_allctr, &old_user_size);
+ pref_allctr = get_pref_allctr(extra);
+ used_allctr = get_used_allctr(extra, p, &old_user_size);
ASSERT(used_allctr && pref_allctr);
@@ -3985,56 +4061,33 @@ realloc_thr_pref(ErtsAlcType_t type, void *extra, void *p, Uint size,
ERTS_ALCU_DBG_CHK_THR_ACCESS(used_allctr);
res = do_erts_alcu_realloc(type,
used_allctr,
- ptr,
- size + sizeof(UWord),
+ p,
+ size,
0);
if (used_allctr->thread_safe)
erts_mtx_unlock(&used_allctr->mutex);
- if (res)
- res = put_used_allctr(res, pref_ix, size);
}
else {
if (pref_allctr->thread_safe)
erts_mtx_lock(&pref_allctr->mutex);
- res = do_erts_alcu_alloc(type, pref_allctr, size + sizeof(UWord));
- if (pref_allctr->thread_safe && (!force_move
- || used_allctr != pref_allctr))
+ res = do_erts_alcu_alloc(type, pref_allctr, size);
+ if (pref_allctr->thread_safe && used_allctr != pref_allctr) {
erts_mtx_unlock(&pref_allctr->mutex);
+ }
if (res) {
- Block_t *blk;
- size_t cpy_size;
-
- res = put_used_allctr(res, pref_ix, size);
-
DEBUG_CHECK_ALIGNMENT(res);
- blk = UMEM2BLK(ptr);
- if (old_user_size != ERTS_AU_PREF_ALLOC_SIZE_MASK)
- cpy_size = old_user_size;
- else {
- if (used_allctr->thread_safe && (!force_move
- || used_allctr != pref_allctr))
- erts_mtx_lock(&used_allctr->mutex);
- ERTS_SMP_LC_ASSERT(!used_allctr->thread_safe ||
- erts_lc_mtx_is_locked(&used_allctr->mutex));
- cpy_size = BLK_SZ(blk);
- if (used_allctr->thread_safe && (!force_move
- || used_allctr != pref_allctr))
- erts_mtx_unlock(&used_allctr->mutex);
- cpy_size -= ABLK_HDR_SZ + sizeof(UWord);
- }
- if (cpy_size > size)
- cpy_size = size;
- sys_memcpy(res, p, cpy_size);
+ sys_memcpy(res, p, MIN(size,old_user_size));
- if (!force_move || used_allctr != pref_allctr)
+ if (used_allctr != pref_allctr) {
enqueue_dealloc_other_instance(type,
used_allctr,
- ptr,
+ p,
(used_allctr->dd.ix
- pref_allctr->dd.ix));
+ }
else {
- do_erts_alcu_free(type, used_allctr, ptr);
+ do_erts_alcu_free(type, used_allctr, p);
ASSERT(pref_allctr == used_allctr);
if (pref_allctr->thread_safe)
erts_mtx_unlock(&pref_allctr->mutex);
@@ -4111,7 +4164,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
allctr->ramv = init->ramv;
allctr->main_carrier_size = init->mmbcs;
- allctr->sbc_threshold = init->sbct;
+
#if HAVE_ERTS_MSEG
allctr->mseg_opt.abs_shrink_th = init->asbcst;
allctr->mseg_opt.rel_shrink_th = init->rsbcst;
@@ -4120,20 +4173,29 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
allctr->mbc_move_threshold = init->rmbcmt;
#if HAVE_ERTS_MSEG
allctr->max_mseg_sbcs = init->mmsbc;
+# if HAVE_SUPER_ALIGNED_MB_CARRIERS
+ allctr->max_mseg_mbcs = ~(Uint)0;
+# else
allctr->max_mseg_mbcs = init->mmmbc;
+# endif
#endif
allctr->largest_mbc_size = MAX(init->lmbcs, init->smbcs);
+#ifndef ARCH_64
+ if (allctr->largest_mbc_size > MBC_SZ_MAX_LIMIT) {
+ allctr->largest_mbc_size = MBC_SZ_MAX_LIMIT;
+ }
+#endif
allctr->smallest_mbc_size = init->smbcs;
allctr->mbc_growth_stages = MAX(1, init->mbcgs);
if (allctr->min_block_size < ABLK_HDR_SZ)
goto error;
allctr->min_block_size = UNIT_CEILING(allctr->min_block_size
- + sizeof(UWord));
+ + sizeof(FreeBlkFtr_t));
#if ERTS_SMP
if (init->tpref) {
- Uint sz = sizeof(Block_t);
+ Uint sz = ABLK_HDR_SZ;
sz += ERTS_ALCU_DD_FIX_TYPE_OFFS*sizeof(UWord);
if (init->fix)
sz += sizeof(UWord);
@@ -4143,6 +4205,23 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
}
#endif
+ allctr->sbc_threshold = init->sbct;
+#ifndef ARCH_64
+ if (allctr->sbc_threshold > 0) {
+ Uint max_mbc_block_sz = UNIT_CEILING(allctr->sbc_threshold - 1 + ABLK_HDR_SZ);
+ if (max_mbc_block_sz + UNIT_FLOOR(allctr->min_block_size - 1) > MBC_ABLK_SZ_MASK
+ || max_mbc_block_sz < allctr->sbc_threshold) { /* wrap around */
+ /*
+ * By limiting sbc_threshold to (hard limit - min_block_size)
+ * we avoid having to split off free "residue blocks"
+ * smaller than min_block_size.
+ */
+ max_mbc_block_sz = MBC_ABLK_SZ_MASK - UNIT_FLOOR(allctr->min_block_size - 1);
+ allctr->sbc_threshold = max_mbc_block_sz - ABLK_HDR_SZ + 1;
+ }
+ }
+#endif
+
allctr->sbmbc_threshold = init->sbmbct;
@@ -4158,7 +4237,7 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
allctr->sbmbc_size = init->sbmbcs;
min_size = allctr->sbmbc_threshold;
min_size += allctr->min_block_size;
- min_size += allctr->mbc_header_size;
+ min_size += MBC_HEADER_SIZE(allctr);
if (allctr->sbmbc_size < min_size)
allctr->sbmbc_size = min_size;
}
@@ -4203,59 +4282,26 @@ erts_alcu_start(Allctr_t *allctr, AllctrInit_t *init)
if (!allctr->get_next_mbc_size)
allctr->get_next_mbc_size = get_next_mbc_size;
- if (allctr->mbc_header_size < sizeof(Carrier_t))
- goto error;
#ifdef ERTS_SMP
allctr->dd.use = 0;
if (init->tpref) {
- allctr->mbc_header_size = (UNIT_CEILING(allctr->mbc_header_size
- + FBLK_FTR_SZ
- + ABLK_HDR_SZ
- + sizeof(UWord))
- - ABLK_HDR_SZ
- - sizeof(UWord));
- allctr->sbc_header_size = (UNIT_CEILING(sizeof(Carrier_t)
- + FBLK_FTR_SZ
- + ABLK_HDR_SZ
- + sizeof(UWord))
- - ABLK_HDR_SZ
- - sizeof(UWord));
-
allctr->dd.use = 1;
init_dd_queue(&allctr->dd.q);
allctr->dd.ix = init->ix;
}
- else
#endif
- {
- allctr->mbc_header_size = (UNIT_CEILING(allctr->mbc_header_size
- + FBLK_FTR_SZ
- + ABLK_HDR_SZ)
- - ABLK_HDR_SZ);
- allctr->sbc_header_size = (UNIT_CEILING(sizeof(Carrier_t)
- + FBLK_FTR_SZ
- + ABLK_HDR_SZ)
- - ABLK_HDR_SZ);
- }
if (allctr->main_carrier_size) {
Block_t *blk;
-#if HALFWORD_HEAP
- blk = create_carrier(allctr,
- allctr->main_carrier_size,
- CFLG_MBC
- | CFLG_FORCE_SIZE
- | CFLG_FORCE_MSEG
- | CFLG_MAIN_CARRIER);
-#else
blk = create_carrier(allctr,
allctr->main_carrier_size,
CFLG_MBC
| CFLG_FORCE_SIZE
+#if !HALFWORD_HEAP && !HAVE_SUPER_ALIGNED_MB_CARRIERS
| CFLG_FORCE_SYS_ALLOC
- | CFLG_MAIN_CARRIER);
#endif
+ | CFLG_MAIN_CARRIER);
if (!blk)
goto error;
@@ -4303,9 +4349,9 @@ erts_alcu_stop(Allctr_t *allctr)
while (allctr->sbc_list.first)
destroy_carrier(allctr, SBC2BLK(allctr, allctr->sbc_list.first));
while (allctr->mbc_list.first)
- destroy_carrier(allctr, MBC2FBLK(allctr, allctr->mbc_list.first));
+ destroy_carrier(allctr, MBC_TO_FIRST_BLK(allctr, allctr->mbc_list.first));
while (allctr->sbmbc_list.first)
- destroy_sbmbc(allctr, MBC2FBLK(allctr, allctr->sbmbc_list.first));
+ destroy_sbmbc(allctr, MBC_TO_FIRST_BLK(allctr, allctr->sbmbc_list.first));
#ifdef USE_THREADS
if (allctr->thread_safe)
@@ -4319,17 +4365,9 @@ erts_alcu_stop(Allctr_t *allctr)
void
erts_alcu_init(AlcUInit_t *init)
{
-
+ ASSERT(SBC_BLK_SZ_MASK == MBC_FBLK_SZ_MASK); /* see BLK_SZ */
#if HAVE_ERTS_MSEG
- mseg_unit_size = erts_mseg_unit_size();
-
- if (mseg_unit_size % sizeof(Unit_t)) /* A little paranoid... */
- erl_exit(-1,
- "Mseg unit size (%d) not evenly divideble by "
- "internal unit size of alloc_util (%d)\n",
- mseg_unit_size,
- sizeof(Unit_t));
-
+ ASSERT(erts_mseg_unit_size() == MSEG_UNIT_SZ);
max_mseg_carriers = init->mmc;
sys_alloc_carrier_size = MSEG_UNIT_CEILING(init->ycs);
#else /* #if HAVE_ERTS_MSEG */
@@ -4372,11 +4410,10 @@ erts_alcu_test(unsigned long op, unsigned long a1, unsigned long a2)
case 0x00b: return (unsigned long) CARRIER_SZ((Carrier_t *) a1);
case 0x00c: return (unsigned long) SBC2BLK((Allctr_t *) a1,
(Carrier_t *) a2);
- case 0x00d: return (unsigned long) BLK2SBC((Allctr_t *) a1,
- (Block_t *) a2);
- case 0x00e: return (unsigned long) MBC2FBLK((Allctr_t *) a1,
+ case 0x00d: return (unsigned long) BLK_TO_SBC((Block_t *) a2);
+ case 0x00e: return (unsigned long) MBC_TO_FIRST_BLK((Allctr_t *) a1,
(Carrier_t *) a2);
- case 0x00f: return (unsigned long) FBLK2MBC((Allctr_t *) a1,
+ case 0x00f: return (unsigned long) FIRST_BLK_TO_MBC((Allctr_t *) a1,
(Block_t *) a2);
case 0x010: return (unsigned long) ((Allctr_t *) a1)->mbc_list.first;
case 0x011: return (unsigned long) ((Allctr_t *) a1)->mbc_list.last;
@@ -4388,7 +4425,7 @@ erts_alcu_test(unsigned long op, unsigned long a1, unsigned long a2)
case 0x017: return (unsigned long) ((Allctr_t *) a1)->min_block_size;
case 0x018: return (unsigned long) NXT_BLK((Block_t *) a1);
case 0x019: return (unsigned long) PREV_BLK((Block_t *) a1);
- case 0x01a: return (unsigned long) IS_FIRST_BLK((Block_t *) a1);
+ case 0x01a: return (unsigned long) IS_MBC_FIRST_BLK((Allctr_t*)a1, (Block_t *) a2);
case 0x01b: return (unsigned long) sizeof(Unit_t);
default: ASSERT(0); return ~((unsigned long) 0);
}
@@ -4432,6 +4469,13 @@ erts_alcu_verify_unused_ts(Allctr_t *allctr)
#endif
}
+#ifdef DEBUG
+int is_sbc_blk(Block_t* blk)
+{
+ return IS_SBC_BLK(blk);
+}
+#endif
+
#ifdef ERTS_ALLOC_UTIL_HARD_DEBUG
static void
@@ -4441,34 +4485,37 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk)
CarrierList_t *cl;
if (IS_SBC_BLK(iblk)) {
- Carrier_t *sbc = BLK2SBC(allctr, iblk);
+ Carrier_t *sbc = BLK_TO_SBC(iblk);
ASSERT(SBC2BLK(allctr, sbc) == iblk);
- ASSERT(IS_ALLOCED_BLK(iblk));
- ASSERT(IS_FIRST_BLK(iblk));
- ASSERT(IS_LAST_BLK(iblk));
- ASSERT(CARRIER_SZ(sbc) - allctr->sbc_header_size >= BLK_SZ(iblk));
+ ASSERT(CARRIER_SZ(sbc) - SBC_HEADER_SIZE >= SBC_BLK_SZ(iblk));
#if HAVE_ERTS_MSEG
if (IS_MSEG_CARRIER(sbc)) {
- ASSERT(CARRIER_SZ(sbc) % mseg_unit_size == 0);
+ ASSERT(CARRIER_SZ(sbc) % MSEG_UNIT_SZ == 0);
}
#endif
crr = sbc;
cl = &allctr->sbc_list;
}
else {
- Carrier_t *mbc = NULL;
Block_t *prev_blk = NULL;
Block_t *blk;
char *carrier_end;
Uint is_free_blk;
Uint tot_blk_sz;
Uint blk_sz;
+ int has_wrapped_around = 0;
blk = iblk;
tot_blk_sz = 0;
+ crr = BLK_TO_MBC(blk);
+ ASSERT(IS_MB_CARRIER(crr));
+ /* Step around the carrier one whole lap starting at 'iblk'
+ */
while (1) {
+ ASSERT(IS_MBC_BLK(blk));
+ ASSERT(BLK_TO_MBC(blk) == crr);
if (prev_blk) {
ASSERT(NXT_BLK(prev_blk) == blk);
@@ -4481,18 +4528,16 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk)
}
}
- if (mbc) {
+ if (has_wrapped_around) {
+ ASSERT(((Block_t *) crr) < blk);
if (blk == iblk)
break;
- ASSERT(((Block_t *) mbc) < blk && blk < iblk);
+ ASSERT(blk < iblk);
}
else
ASSERT(blk >= iblk);
-
- ASSERT(IS_MBC_BLK(blk));
-
- blk_sz = BLK_SZ(blk);
+ blk_sz = MBC_BLK_SZ(blk);
ASSERT(blk_sz % sizeof(Unit_t) == 0);
ASSERT(blk_sz >= allctr->min_block_size);
@@ -4500,44 +4545,40 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk)
tot_blk_sz += blk_sz;
is_free_blk = (int) IS_FREE_BLK(blk);
- if(is_free_blk) {
- if (IS_NOT_LAST_BLK(blk))
- ASSERT(*((UWord *) (((char *) blk)+blk_sz-sizeof(UWord)))
- == blk_sz);
- }
+ ASSERT(!is_free_blk
+ || IS_LAST_BLK(blk)
+ || PREV_BLK_SZ(((char *) blk)+blk_sz) == blk_sz);
if (allctr->check_block)
(*allctr->check_block)(allctr, blk, (int) is_free_blk);
if (IS_LAST_BLK(blk)) {
carrier_end = ((char *) NXT_BLK(blk));
- mbc = *((Carrier_t **) NXT_BLK(blk));
+ has_wrapped_around = 1;
prev_blk = NULL;
- blk = MBC2FBLK(allctr, mbc);
- ASSERT(IS_FIRST_BLK(blk));
+ blk = MBC_TO_FIRST_BLK(allctr, crr);
+ ASSERT(IS_MBC_FIRST_BLK(allctr,blk));
}
else {
prev_blk = blk;
blk = NXT_BLK(blk);
}
}
-
- ASSERT(IS_MB_CARRIER(mbc));
- ASSERT((((char *) mbc)
- + allctr->mbc_header_size
+
+ ASSERT((((char *) crr)
+ + MBC_HEADER_SIZE(allctr)
+ tot_blk_sz) == carrier_end);
- ASSERT(((char *) mbc) + CARRIER_SZ(mbc) - sizeof(Unit_t) <= carrier_end
- && carrier_end <= ((char *) mbc) + CARRIER_SZ(mbc));
+ ASSERT(((char *) crr) + CARRIER_SZ(crr) - sizeof(Unit_t) <= carrier_end
+ && carrier_end <= ((char *) crr) + CARRIER_SZ(crr));
if (allctr->check_mbc)
- (*allctr->check_mbc)(allctr, mbc);
+ (*allctr->check_mbc)(allctr, crr);
#if HAVE_ERTS_MSEG
- if (IS_MSEG_CARRIER(mbc)) {
- ASSERT(CARRIER_SZ(mbc) % mseg_unit_size == 0);
+ if (IS_MSEG_CARRIER(crr)) {
+ ASSERT(CARRIER_SZ(crr) % MSEG_UNIT_SZ == 0);
}
#endif
- crr = mbc;
cl = &allctr->mbc_list;
}
@@ -4559,4 +4600,5 @@ check_blk_carrier(Allctr_t *allctr, Block_t *iblk)
#endif
}
-#endif
+#endif /* ERTS_ALLOC_UTIL_HARD_DEBUG */
+
diff --git a/erts/emulator/beam/erl_alloc_util.h b/erts/emulator/beam/erl_alloc_util.h
index cedf4ccf85..e0754e7f69 100644
--- a/erts/emulator/beam/erl_alloc_util.h
+++ b/erts/emulator/beam/erl_alloc_util.h
@@ -216,16 +216,40 @@ erts_aint32_t erts_alcu_fix_alloc_shrink(Allctr_t *, erts_aint32_t);
#define UNIT_FLOOR(X) ((X) & UNIT_MASK)
#define UNIT_CEILING(X) UNIT_FLOOR((X) + INV_UNIT_MASK)
+#define FLG_MASK INV_UNIT_MASK
+#define SBC_BLK_SZ_MASK UNIT_MASK
+#define MBC_FBLK_SZ_MASK UNIT_MASK
+#define CARRIER_SZ_MASK UNIT_MASK
-#define SZ_MASK (~((UWord) 0) << 3)
-#define FLG_MASK (~(SZ_MASK))
+#if HAVE_ERTS_MSEG
+# ifdef ARCH_64
+# define MBC_ABLK_OFFSET_BITS 24
+# elif HAVE_SUPER_ALIGNED_MB_CARRIERS
+# define MBC_ABLK_OFFSET_BITS 9
+ /* Affects hard limits for sbct and lmbcs documented in erts_alloc.xml */
+# endif
+#endif
+#ifndef MBC_ABLK_OFFSET_BITS
+# define MBC_ABLK_OFFSET_BITS 0 /* no carrier offset in block header */
+#endif
+
+#if MBC_ABLK_OFFSET_BITS
+# define MBC_ABLK_OFFSET_SHIFT (sizeof(UWord)*8 - MBC_ABLK_OFFSET_BITS)
+# define MBC_ABLK_OFFSET_MASK (~((UWord)0) << MBC_ABLK_OFFSET_SHIFT)
+# define MBC_ABLK_SZ_MASK (~MBC_ABLK_OFFSET_MASK & ~FLG_MASK)
+# define HAVE_ERTS_SBMBC 0
+#else
+# define MBC_ABLK_SZ_MASK (~FLG_MASK)
+# define HAVE_ERTS_SBMBC 1
+#endif
-#define BLK_SZ(B) \
- (*((Block_t *) (B)) & SZ_MASK)
+#define MBC_ABLK_SZ(B) (ASSERT_EXPR(!is_sbc_blk(B)), (B)->bhdr & MBC_ABLK_SZ_MASK)
+#define MBC_FBLK_SZ(B) (ASSERT_EXPR(!is_sbc_blk(B)), (B)->bhdr & MBC_FBLK_SZ_MASK)
+#define SBC_BLK_SZ(B) (ASSERT_EXPR(is_sbc_blk(B)), (B)->bhdr & SBC_BLK_SZ_MASK)
#define CARRIER_SZ(C) \
- ((C)->chdr & SZ_MASK)
+ ((C)->chdr & CARRIER_SZ_MASK)
extern int erts_have_sbmbc_alloc;
@@ -236,6 +260,7 @@ struct Carrier_t_ {
UWord chdr;
Carrier_t *next;
Carrier_t *prev;
+ Allctr_t *allctr;
};
typedef struct {
@@ -243,8 +268,19 @@ typedef struct {
Carrier_t *last;
} CarrierList_t;
-typedef UWord Block_t;
-typedef UWord FreeBlkFtr_t;
+typedef struct {
+ UWord bhdr;
+#if !MBC_ABLK_OFFSET_BITS
+ Carrier_t *carrier;
+#else
+ union {
+ Carrier_t *carrier; /* if free */
+ char udata__[1]; /* if allocated */
+ }u;
+#endif
+} Block_t;
+
+typedef UWord FreeBlkFtr_t; /* Footer of a free block */
typedef struct {
UWord giga_no;
@@ -381,8 +417,6 @@ struct Allctr_t_ {
#endif
/* */
- Uint mbc_header_size;
- Uint sbc_header_size;
Uint min_mbc_size;
Uint min_mbc_first_free_size;
Uint min_block_size;
@@ -469,6 +503,9 @@ void erts_alcu_verify_unused_ts(Allctr_t *allctr);
unsigned long erts_alcu_test(unsigned long, unsigned long, unsigned long);
+#ifdef DEBUG
+int is_sbc_blk(Block_t*);
+#endif
#endif /* #if defined(GET_ERL_ALLOC_UTIL_IMPL)
diff --git a/erts/emulator/beam/erl_ao_firstfit_alloc.c b/erts/emulator/beam/erl_ao_firstfit_alloc.c
index 5bdb752d3a..86b4696d8f 100644
--- a/erts/emulator/beam/erl_ao_firstfit_alloc.c
+++ b/erts/emulator/beam/erl_ao_firstfit_alloc.c
@@ -91,6 +91,7 @@ struct AOFF_RBTree_t_ {
AOFF_RBTree_t *right;
Uint max_sz; /* of all blocks in this sub-tree */
};
+#define AOFF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->hdr)
#ifdef HARD_DEBUG
static AOFF_RBTree_t * check_tree(AOFF_RBTree_t* root, Uint);
@@ -102,7 +103,7 @@ static AOFF_RBTree_t * check_tree(AOFF_RBTree_t* root, Uint);
*/
static ERTS_INLINE Uint node_max_size(AOFF_RBTree_t *x)
{
- Uint sz = BLK_SZ(x);
+ Uint sz = AOFF_BLK_SZ(x);
if (x->left && x->left->max_sz > sz) {
sz = x->left->max_sz;
}
@@ -183,7 +184,6 @@ erts_aoffalc_start(AOFFAllctr_t *alc,
sys_memcpy((void *) alc, (void *) &zero.allctr, sizeof(AOFFAllctr_t));
- allctr->mbc_header_size = sizeof(Carrier_t);
allctr->min_mbc_size = MIN_MBC_SZ;
allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ;
allctr->min_block_size = sizeof(AOFF_RBTree_t);
@@ -587,7 +587,7 @@ aoff_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
AOFF_RBTree_t *blk = (AOFF_RBTree_t *) block;
AOFF_RBTree_t **root = ((flags & ERTS_ALCU_FLG_SBMBC)
? &alc->sbmbc_root : &alc->mbc_root);
- Uint blk_sz = BLK_SZ(blk);
+ Uint blk_sz = AOFF_BLK_SZ(blk);
#ifdef HARD_DEBUG
check_tree(*root, 0);
@@ -659,7 +659,7 @@ aoff_get_free_block(Allctr_t *allctr, Uint size,
if (x->left && x->left->max_sz >= size) {
x = x->left;
}
- else if (BLK_SZ(x) >= size) {
+ else if (AOFF_BLK_SZ(x) >= size) {
blk = x;
break;
}
@@ -910,12 +910,12 @@ check_tree(AOFF_RBTree_t* root, Uint size)
ASSERT(x->right > x);
ASSERT(x->right->max_sz <= x->max_sz);
}
- ASSERT(x->max_sz >= BLK_SZ(x));
- ASSERT(x->max_sz == BLK_SZ(x)
+ ASSERT(x->max_sz >= AOFF_BLK_SZ(x));
+ ASSERT(x->max_sz == AOFF_BLK_SZ(x)
|| x->max_sz == (x->left ? x->left->max_sz : 0)
|| x->max_sz == (x->right ? x->right->max_sz : 0));
- if (size && BLK_SZ(x) >= size) {
+ if (size && AOFF_BLK_SZ(x) >= size) {
if (!res || x < res) {
res = x;
}
@@ -956,7 +956,7 @@ print_tree_aux(AOFF_RBTree_t *x, int indent)
}
fprintf(stderr, "%s: sz=%lu addr=0x%lx max_size=%lu\r\n",
IS_BLACK(x) ? "BLACK" : "RED",
- BLK_SZ(x), (Uint)x, x->max_sz);
+ AOFF_BLK_SZ(x), (Uint)x, x->max_sz);
print_tree_aux(x->left, indent + INDENT_STEP);
}
}
diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c
index f308039baf..f2ca193ace 100644
--- a/erts/emulator/beam/erl_async.c
+++ b/erts/emulator/beam/erl_async.c
@@ -122,6 +122,8 @@ typedef struct {
#endif
} ErtsAsyncData;
+#if defined(USE_THREADS) && defined(USE_VM_PROBES)
+
/*
* Some compilers, e.g. GCC 4.2.1 and -O3, will optimize away DTrace
* calls if they're the last thing in the function. :-(
@@ -129,6 +131,7 @@ typedef struct {
* https://github.com/memcached/memcached/commit/6298b3978687530bc9d219b6ac707a1b681b2a46
*/
static unsigned gcc_optimizer_hack = 0;
+#endif
int erts_async_max_threads; /* Initialized by erl_init.c */
int erts_async_thread_suggested_stack_size; /* Initialized by erl_init.c */
@@ -281,8 +284,8 @@ static ERTS_INLINE void async_add(ErtsAsync *a, ErtsAsyncQ* q)
len = -1;
DTRACE2(aio_pool_add, port_str, len);
}
-#endif
gcc_optimizer_hack++;
+#endif
}
static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q,
@@ -379,10 +382,15 @@ static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q,
static ERTS_INLINE void call_async_ready(ErtsAsync *a)
{
+#if ERTS_USE_ASYNC_READY_Q
Port *p = erts_id2port_sflgs(a->port,
NULL,
0,
ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP);
+#else
+ Port *p = erts_thr_id2port_sflgs(a->port,
+ ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP);
+#endif
if (!p) {
if (a->async_free)
a->async_free(a->async_data);
@@ -392,7 +400,11 @@ static ERTS_INLINE void call_async_ready(ErtsAsync *a)
if (a->async_free)
a->async_free(a->async_data);
}
+#if ERTS_USE_ASYNC_READY_Q
erts_port_release(p);
+#else
+ erts_thr_port_release(p);
+#endif
}
if (a->pdl)
driver_pdl_dec_refc(a->pdl);
@@ -600,7 +612,7 @@ long driver_async(ErlDrvPort ix, unsigned int* key,
sched_id = 1;
#endif
- prt = erts_drvport2port(ix);
+ prt = erts_drvport2port(ix, NULL);
if (!prt)
return -1;
@@ -612,7 +624,7 @@ long driver_async(ErlDrvPort ix, unsigned int* key,
a->sched_id = sched_id;
#endif
a->hndl = (DE_Handle*)prt->drv_ptr->handle;
- a->port = prt->id;
+ a->port = prt->common.id;
a->pdl = NULL;
a->async_data = async_data;
a->async_invoke = async_invoke;
diff --git a/erts/emulator/beam/erl_bestfit_alloc.c b/erts/emulator/beam/erl_bestfit_alloc.c
index c50fdeb4e8..743cbd93c9 100644
--- a/erts/emulator/beam/erl_bestfit_alloc.c
+++ b/erts/emulator/beam/erl_bestfit_alloc.c
@@ -73,6 +73,8 @@
#define SET_RED(N) (((RBTree_t *) (N))->flags |= RED_FLG)
#define SET_BLACK(N) (((RBTree_t *) (N))->flags &= ~RED_FLG)
+#define BF_BLK_SZ(B) MBC_FBLK_SZ(&(B)->hdr)
+
#undef ASSERT
#define ASSERT ASSERT_EXPR
@@ -177,7 +179,6 @@ erts_bfalc_start(BFAllctr_t *bfallctr,
bfallctr->address_order = bfinit->ao;
- allctr->mbc_header_size = sizeof(Carrier_t);
allctr->min_mbc_size = MIN_MBC_SZ;
allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ;
allctr->min_block_size = (bfinit->ao
@@ -592,7 +593,7 @@ aobf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
? &bfallctr->sbmbc_root
: &bfallctr->mbc_root);
RBTree_t *blk = (RBTree_t *) block;
- Uint blk_sz = BLK_SZ(blk);
+ Uint blk_sz = BF_BLK_SZ(blk);
@@ -610,7 +611,7 @@ aobf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
while (1) {
Uint size;
- size = BLK_SZ(x);
+ size = BF_BLK_SZ(x);
if (blk_sz < size || (blk_sz == size && blk < x)) {
if (!x->left) {
@@ -668,7 +669,7 @@ aobf_get_free_block(Allctr_t *allctr, Uint size,
ASSERT(!cand_blk || cand_size >= size);
while (x) {
- blk_sz = BLK_SZ(x);
+ blk_sz = BF_BLK_SZ(x);
if (blk_sz < size) {
x = x->right;
}
@@ -686,7 +687,7 @@ aobf_get_free_block(Allctr_t *allctr, Uint size,
#endif
if (cand_blk) {
- blk_sz = BLK_SZ(blk);
+ blk_sz = BF_BLK_SZ(blk);
if (cand_size < blk_sz)
return NULL; /* cand_blk was better */
if (cand_size == blk_sz && ((void *) cand_blk) < ((void *) blk))
@@ -711,7 +712,7 @@ bf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
? &bfallctr->sbmbc_root
: &bfallctr->mbc_root);
RBTree_t *blk = (RBTree_t *) block;
- Uint blk_sz = BLK_SZ(blk);
+ Uint blk_sz = BF_BLK_SZ(blk);
SET_TREE_NODE(blk);
@@ -730,7 +731,7 @@ bf_link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
while (1) {
Uint size;
- size = BLK_SZ(x);
+ size = BF_BLK_SZ(x);
if (blk_sz == size) {
@@ -796,7 +797,7 @@ bf_unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
else if (LIST_NEXT(x)) {
/* Replace tree node by next element in list... */
- ASSERT(BLK_SZ(LIST_NEXT(x)) == BLK_SZ(x));
+ ASSERT(BF_BLK_SZ(LIST_NEXT(x)) == BF_BLK_SZ(x));
ASSERT(IS_TREE_NODE(x));
ASSERT(IS_LIST_ELEM(LIST_NEXT(x)));
@@ -834,7 +835,7 @@ bf_get_free_block(Allctr_t *allctr, Uint size,
ASSERT(!cand_blk || cand_size >= size);
while (x) {
- blk_sz = BLK_SZ(x);
+ blk_sz = BF_BLK_SZ(x);
if (blk_sz < size) {
x = x->right;
}
@@ -855,11 +856,11 @@ bf_get_free_block(Allctr_t *allctr, Uint size,
#ifdef HARD_DEBUG
{
RBTree_t *ct_blk = check_tree(root, 0, size);
- ASSERT(BLK_SZ(ct_blk) == BLK_SZ(blk));
+ ASSERT(BF_BLK_SZ(ct_blk) == BF_BLK_SZ(blk));
}
#endif
- if (cand_blk && cand_size <= BLK_SZ(blk))
+ if (cand_blk && cand_size <= BF_BLK_SZ(blk))
return NULL; /* cand_blk was better */
/* Use next block if it exist in order to avoid replacing
@@ -1093,36 +1094,36 @@ check_tree(RBTree_t *root, int ao, Uint size)
if (x->left) {
ASSERT(x->left->parent == x);
if (ao) {
- ASSERT(BLK_SZ(x->left) < BLK_SZ(x)
- || (BLK_SZ(x->left) == BLK_SZ(x) && x->left < x));
+ ASSERT(BF_BLK_SZ(x->left) < BF_BLK_SZ(x)
+ || (BF_BLK_SZ(x->left) == BF_BLK_SZ(x) && x->left < x));
}
else {
ASSERT(IS_TREE_NODE(x->left));
- ASSERT(BLK_SZ(x->left) < BLK_SZ(x));
+ ASSERT(BF_BLK_SZ(x->left) < BF_BLK_SZ(x));
}
}
if (x->right) {
ASSERT(x->right->parent == x);
if (ao) {
- ASSERT(BLK_SZ(x->right) > BLK_SZ(x)
- || (BLK_SZ(x->right) == BLK_SZ(x) && x->right > x));
+ ASSERT(BF_BLK_SZ(x->right) > BF_BLK_SZ(x)
+ || (BF_BLK_SZ(x->right) == BF_BLK_SZ(x) && x->right > x));
}
else {
ASSERT(IS_TREE_NODE(x->right));
- ASSERT(BLK_SZ(x->right) > BLK_SZ(x));
+ ASSERT(BF_BLK_SZ(x->right) > BF_BLK_SZ(x));
}
}
- if (size && BLK_SZ(x) >= size) {
+ if (size && BF_BLK_SZ(x) >= size) {
if (ao) {
if (!res
- || BLK_SZ(x) < BLK_SZ(res)
- || (BLK_SZ(x) == BLK_SZ(res) && x < res))
+ || BF_BLK_SZ(x) < BF_BLK_SZ(res)
+ || (BF_BLK_SZ(x) == BF_BLK_SZ(res) && x < res))
res = x;
}
else {
- if (!res || BLK_SZ(x) < BLK_SZ(res))
+ if (!res || BF_BLK_SZ(x) < BF_BLK_SZ(res))
res = x;
}
}
@@ -1168,7 +1169,7 @@ print_tree_aux(RBTree_t *x, int indent)
}
fprintf(stderr, "%s: sz=%lu addr=0x%lx\r\n",
IS_BLACK(x) ? "BLACK" : "RED",
- BLK_SZ(x),
+ BF_BLK_SZ(x),
(Uint) x);
print_tree_aux(x->left, indent + INDENT_STEP);
}
diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c
index cc4f2be8eb..474151d454 100644
--- a/erts/emulator/beam/erl_bif_binary.c
+++ b/erts/emulator/beam/erl_bif_binary.c
@@ -72,52 +72,29 @@ binary_matches(Process *p, Eterm arg1, Eterm arg2, Eterm arg3);
void erts_init_bif_binary(void)
{
- sys_memset((void *) &binary_match_trap_export, 0, sizeof(Export));
- binary_match_trap_export.address = &binary_match_trap_export.code[3];
- binary_match_trap_export.code[0] = am_erlang;
- binary_match_trap_export.code[1] = am_binary_match_trap;
- binary_match_trap_export.code[2] = 3;
- binary_match_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_match_trap_export.code[4] = (BeamInstr) &binary_match_trap;
-
- sys_memset((void *) &binary_matches_trap_export, 0, sizeof(Export));
- binary_matches_trap_export.address = &binary_matches_trap_export.code[3];
- binary_matches_trap_export.code[0] = am_erlang;
- binary_matches_trap_export.code[1] = am_binary_matches_trap;
- binary_matches_trap_export.code[2] = 3;
- binary_matches_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_matches_trap_export.code[4] = (BeamInstr) &binary_matches_trap;
-
- sys_memset((void *) &binary_longest_prefix_trap_export, 0, sizeof(Export));
- binary_longest_prefix_trap_export.address = &binary_longest_prefix_trap_export.code[3];
- binary_longest_prefix_trap_export.code[0] = am_erlang;
- binary_longest_prefix_trap_export.code[1] = am_binary_longest_prefix_trap;
- binary_longest_prefix_trap_export.code[2] = 3;
- binary_longest_prefix_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_longest_prefix_trap_export.code[4] = (BeamInstr) &binary_longest_prefix_trap;
-
- sys_memset((void *) &binary_longest_suffix_trap_export, 0, sizeof(Export));
- binary_longest_suffix_trap_export.address = &binary_longest_suffix_trap_export.code[3];
- binary_longest_suffix_trap_export.code[0] = am_erlang;
- binary_longest_suffix_trap_export.code[1] = am_binary_longest_suffix_trap;
- binary_longest_suffix_trap_export.code[2] = 3;
- binary_longest_suffix_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_longest_suffix_trap_export.code[4] = (BeamInstr) &binary_longest_suffix_trap;
-
- sys_memset((void *) &binary_bin_to_list_trap_export, 0, sizeof(Export));
- binary_bin_to_list_trap_export.address = &binary_bin_to_list_trap_export.code[3];
- binary_bin_to_list_trap_export.code[0] = am_erlang;
- binary_bin_to_list_trap_export.code[1] = am_binary_bin_to_list_trap;
- binary_bin_to_list_trap_export.code[2] = 3;
- binary_bin_to_list_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_bin_to_list_trap_export.code[4] = (BeamInstr) &binary_bin_to_list_trap;
- sys_memset((void *) &binary_copy_trap_export, 0, sizeof(Export));
- binary_copy_trap_export.address = &binary_copy_trap_export.code[3];
- binary_copy_trap_export.code[0] = am_erlang;
- binary_copy_trap_export.code[1] = am_binary_copy_trap;
- binary_copy_trap_export.code[2] = 2;
- binary_copy_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_copy_trap_export.code[4] = (BeamInstr) &binary_copy_trap;
+ erts_init_trap_export(&binary_match_trap_export,
+ am_erlang, am_binary_match_trap, 3,
+ &binary_match_trap);
+
+ erts_init_trap_export(&binary_matches_trap_export,
+ am_erlang, am_binary_matches_trap, 3,
+ &binary_matches_trap);
+
+ erts_init_trap_export(&binary_longest_prefix_trap_export,
+ am_erlang, am_binary_longest_prefix_trap, 3,
+ &binary_longest_prefix_trap);
+
+ erts_init_trap_export(&binary_longest_suffix_trap_export,
+ am_erlang, am_binary_longest_suffix_trap, 3,
+ &binary_longest_suffix_trap);
+
+ erts_init_trap_export(&binary_bin_to_list_trap_export,
+ am_erlang, am_binary_bin_to_list_trap, 3,
+ &binary_bin_to_list_trap);
+
+ erts_init_trap_export(&binary_copy_trap_export,
+ am_erlang, am_binary_copy_trap, 2,
+ &binary_copy_trap);
max_loop_limit = 0;
return;
diff --git a/erts/emulator/beam/erl_bif_chksum.c b/erts/emulator/beam/erl_bif_chksum.c
index 06b7ffdf32..ff5ce3cc7a 100644
--- a/erts/emulator/beam/erl_bif_chksum.c
+++ b/erts/emulator/beam/erl_bif_chksum.c
@@ -42,16 +42,9 @@ static Export chksum_md5_2_exp;
void erts_init_bif_chksum(void)
{
/* Non visual BIF to trap to. */
- memset(&chksum_md5_2_exp, 0, sizeof(Export));
- chksum_md5_2_exp.address =
- &chksum_md5_2_exp.code[3];
- chksum_md5_2_exp.code[0] = am_erlang;
- chksum_md5_2_exp.code[1] = am_atom_put("md5_trap",8);
- chksum_md5_2_exp.code[2] = 2;
- chksum_md5_2_exp.code[3] =
- (BeamInstr) em_apply_bif;
- chksum_md5_2_exp.code[4] =
- (BeamInstr) &md5_2;
+ erts_init_trap_export(&chksum_md5_2_exp,
+ am_erlang, am_atom_put("md5_trap",8), 2,
+ &md5_2);
}
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index c338ee1c4b..7cbea55eac 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -104,16 +104,49 @@ static void dereference_all_processes(DE_Handle *dh);
static void restore_process_references(DE_Handle *dh);
static void ddll_no_more_references(void *vdh);
-#define lock_drv_list() erts_smp_mtx_lock(&erts_driver_list_lock)
-#define unlock_drv_list() erts_smp_mtx_unlock(&erts_driver_list_lock)
+#define lock_drv_list() erts_smp_rwmtx_rwlock(&erts_driver_list_lock)
+#define unlock_drv_list() erts_smp_rwmtx_rwunlock(&erts_driver_list_lock)
#define assert_drv_list_locked() \
- ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&erts_driver_list_lock))
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock) \
+ || erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock))
+#define assert_drv_list_rwlocked() \
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock))
+#define assert_drv_list_rlocked() \
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock))
#define assert_drv_list_not_locked() \
- ERTS_SMP_LC_ASSERT(!erts_smp_lc_mtx_is_locked(&erts_driver_list_lock))
+ ERTS_SMP_LC_ASSERT(!erts_smp_lc_rwmtx_is_rwlocked(&erts_driver_list_lock) \
+ && !erts_smp_lc_rwmtx_is_rlocked(&erts_driver_list_lock))
#define FREE_PORT_FLAGS (ERTS_PORT_SFLGS_DEAD & (~ERTS_PORT_SFLG_INITIALIZING))
+static void
+kill_ports_driver_unloaded(DE_Handle *dh)
+{
+ int ix, max = erts_ptab_max(&erts_port);
+
+ for (ix = 0; ix < max; ix++) {
+ erts_aint32_t state;
+ Port* prt = erts_pix2port(ix);
+ if (!prt)
+ continue;
+
+ ERTS_SMP_DATA_DEPENDENCY_READ_MEMORY_BARRIER;
+
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & FREE_PORT_FLAGS)
+ continue;
+
+ erts_smp_port_lock(prt);
+
+ state = erts_atomic32_read_nob(&prt->state);
+ if (!(state & ERTS_PORT_SFLGS_DEAD) && prt->drv_ptr->handle == dh)
+ driver_failure_atom((ErlDrvPort) prt, "driver_unloaded");
+
+ erts_port_release(prt);
+ }
+}
+
/*
* try_load(Path, Name, OptionList) -> {ok,Status} |
* {ok, PendingStatus, Ref} |
@@ -149,7 +182,7 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3)
Eterm name_term = BIF_ARG_2;
Eterm options = BIF_ARG_3;
char *path = NULL;
- Uint path_len;
+ ErlDrvSizeT path_len;
char *name = NULL;
DE_Handle *dh;
erts_driver_t *drv;
@@ -228,7 +261,7 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3)
goto error;
}
path = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, path_len + 1 /* might need path separator */ + sys_strlen(name) + 1);
- if (io_list_to_buf(path_term, path, path_len) != 0) {
+ if (erts_iolist_to_buf(path_term, path, path_len) != 0) {
goto error;
}
while (path_len > 0 && (path[path_len-1] == '\\' || path[path_len-1] == '/')) {
@@ -356,42 +389,16 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3)
ok_term = mkatom("loaded");
}
}
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if (kill_ports) {
- int j;
- /* Avoid closing the driver by referencing it */
+ /* Avoid closing the driver by referencing it */
erts_ddll_reference_driver(dh);
ASSERT(dh->status == ERL_DE_RELOAD);
dh->status = ERL_DE_FORCE_RELOAD;
#if DDLL_SMP
unlock_drv_list();
#endif
- for (j = 0; j < erts_max_ports; j++) {
- Port* prt = &erts_port[j];
-#ifdef DDLL_SMP
- erts_smp_port_state_lock(prt);
-#endif
- if (!(prt->status & FREE_PORT_FLAGS) &&
- prt->drv_ptr->handle == dh) {
-#if DDLL_SMP
- erts_smp_atomic_inc_nob(&prt->refc);
- /* Extremely rare spinlock */
- while(prt->status & ERTS_PORT_SFLG_INITIALIZING) {
- erts_smp_port_state_unlock(prt);
- erts_smp_port_state_lock(prt);
- }
- erts_smp_port_state_unlock(prt);
- erts_smp_mtx_lock(prt->lock);
- if (!(prt->status & ERTS_PORT_SFLGS_DEAD)) {
- driver_failure_atom(j, "driver_unloaded");
- }
-#else
- driver_failure_atom(j, "driver_unloaded");
-#endif
- erts_port_release(prt);
- }
- else erts_smp_port_state_unlock(prt);
- }
+ kill_ports_driver_unloaded(dh);
/* Dereference, eventually causing driver destruction */
#if DDLL_SMP
lock_drv_list();
@@ -581,47 +588,21 @@ Eterm erl_ddll_try_unload_2(BIF_ALIST_2)
dh->reload_full_path = dh->reload_driver_name = NULL;
dh->reload_flags = 0;
}
- if (dh->port_count > 0) {
+ if (erts_smp_atomic32_read_nob(&dh->port_count) > 0) {
++kill_ports;
}
dh->status = ERL_DE_UNLOAD;
ok_term = am_pending_driver;
done:
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if (kill_ports > 1) {
- int j;
/* Avoid closing the driver by referencing it */
erts_ddll_reference_driver(dh);
dh->status = ERL_DE_FORCE_UNLOAD;
#if DDLL_SMP
unlock_drv_list();
#endif
- for (j = 0; j < erts_max_ports; j++) {
- Port* prt = &erts_port[j];
-#if DDLL_SMP
- erts_smp_port_state_lock(prt);
-#endif
- if (!(prt->status & FREE_PORT_FLAGS)
- && prt->drv_ptr->handle == dh) {
-#if DDLL_SMP
- erts_smp_atomic_inc_nob(&prt->refc);
- /* Extremely rare spinlock */
- while(prt->status & ERTS_PORT_SFLG_INITIALIZING) {
- erts_smp_port_state_unlock(prt);
- erts_smp_port_state_lock(prt);
- }
- erts_smp_port_state_unlock(prt);
- erts_smp_mtx_lock(prt->lock);
- if (!(prt->status & ERTS_PORT_SFLGS_DEAD)) {
- driver_failure_atom(j, "driver_unloaded");
- }
-#else
- driver_failure_atom(j, "driver_unloaded");
-#endif
- erts_port_release(prt);
- }
- else erts_smp_port_state_unlock(prt);
- }
+ kill_ports_driver_unloaded(dh);
#if DDLL_SMP
lock_drv_list();
#endif
@@ -791,7 +772,7 @@ BIF_RETTYPE erl_ddll_info_2(BIF_ALIST_2)
} else if (drv->handle->status == ERL_DE_PERMANENT) {
res = am_permanent;
} else {
- res = make_small(drv->handle->port_count);
+ res = make_small(erts_smp_atomic32_read_nob(&drv->handle->port_count));
}
goto done;
case am_linked_in_driver:
@@ -1049,40 +1030,16 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks)
}
dh->status = ERL_DE_UNLOAD;
}
- if (!left && drv->handle->port_count > 0) {
+ if (!left
+ && erts_smp_atomic32_read_nob(&drv->handle->port_count) > 0) {
if (kill_ports) {
- int j;
DE_Handle *dh = drv->handle;
erts_ddll_reference_driver(dh);
dh->status = ERL_DE_FORCE_UNLOAD;
#if DDLL_SMP
unlock_drv_list();
#endif
- for (j = 0; j < erts_max_ports; j++) {
- Port* prt = &erts_port[j];
-#if DDLL_SMP
- erts_smp_port_state_lock(prt);
-#endif
- if (!(prt->status & FREE_PORT_FLAGS) &&
- prt->drv_ptr->handle == dh) {
-#if DDLL_SMP
- erts_smp_atomic_inc_nob(&prt->refc);
- while(prt->status & ERTS_PORT_SFLG_INITIALIZING) {
- erts_smp_port_state_unlock(prt);
- erts_smp_port_state_lock(prt);
- }
- erts_smp_port_state_unlock(prt);
- erts_smp_mtx_lock(prt->lock);
- if (!(prt->status & ERTS_PORT_SFLGS_DEAD)) {
- driver_failure_atom(j, "driver_unloaded");
- }
-#else
- driver_failure_atom(j, "driver_unloaded");
-#endif
- erts_port_release(prt);
- }
- else erts_smp_port_state_unlock(prt);
- }
+ kill_ports_driver_unloaded(dh);
#if DDLL_SMP
lock_drv_list(); /* Needed for future list operations */
#endif
@@ -1104,7 +1061,7 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks)
void erts_ddll_lock_driver(DE_Handle *dh, char *name)
{
DE_ProcEntry *p,*q;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
notify_all(dh, name,
ERL_DE_PROC_AWAIT_LOAD, am_UP, am_permanent);
notify_all(dh, name,
@@ -1127,19 +1084,22 @@ void erts_ddll_lock_driver(DE_Handle *dh, char *name)
void erts_ddll_increment_port_count(DE_Handle *dh)
{
assert_drv_list_locked();
- dh->port_count++;
+ erts_smp_atomic32_inc_nob(&dh->port_count);
}
void erts_ddll_decrement_port_count(DE_Handle *dh)
{
assert_drv_list_locked();
- ASSERT(dh->port_count > 0);
- dh->port_count--;
+#if DEBUG
+ ASSERT(erts_smp_atomic32_dec_read_nob(&dh->port_count) >= 0);
+#else
+ erts_smp_atomic32_dec_nob(&dh->port_count);
+#endif
}
static void first_ddll_reference(DE_Handle *dh)
{
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
erts_refc_init(&(dh->refc),1);
}
@@ -1167,7 +1127,7 @@ void erts_ddll_dereference_driver(DE_Handle *dh)
static void dereference_all_processes(DE_Handle *dh)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
for(p = dh->procs;p != NULL; p = p->next) {
if (p->awaiting_status == ERL_DE_PROC_LOADED) {
ASSERT(!(p->flags & ERL_DE_FL_DEREFERENCED));
@@ -1180,7 +1140,7 @@ static void dereference_all_processes(DE_Handle *dh)
static void restore_process_references(DE_Handle *dh)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
ASSERT(erts_refc_read(&(dh->refc),0) == 0);
for(p = dh->procs;p != NULL; p = p->next) {
if (p->awaiting_status == ERL_DE_PROC_LOADED) {
@@ -1408,7 +1368,7 @@ static int is_last_user(DE_Handle *dh, Process *proc) {
DE_ProcEntry *p = dh->procs;
int found = 0;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->proc == proc && p->awaiting_status == ERL_DE_PROC_LOADED) {
@@ -1429,7 +1389,7 @@ static DE_ProcEntry *find_proc_entry(DE_Handle *dh, Process *proc, Uint status)
{
DE_ProcEntry *p = dh->procs;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->proc == proc && p->awaiting_status == status) {
@@ -1456,7 +1416,7 @@ static int num_procs(DE_Handle *dh, Uint status) {
DE_ProcEntry *p = dh->procs;
int i = 0;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->awaiting_status == status) {
@@ -1471,7 +1431,7 @@ static int num_entries(DE_Handle *dh, Process *proc, Uint status) {
DE_ProcEntry *p = dh->procs;
int i = 0;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->awaiting_status == status && p->proc == proc) {
++i;
@@ -1484,7 +1444,7 @@ static int num_entries(DE_Handle *dh, Process *proc, Uint status) {
static void add_proc_loaded(DE_Handle *dh, Process *proc)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->flags = 0;
@@ -1496,7 +1456,7 @@ static void add_proc_loaded(DE_Handle *dh, Process *proc)
static void add_proc_loaded_deref(DE_Handle *dh, Process *proc)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->awaiting_status = ERL_DE_PROC_LOADED;
@@ -1516,7 +1476,7 @@ static void add_proc_waiting(DE_Handle *dh, Process *proc,
Uint status, Eterm ref)
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->flags = 0;
@@ -1530,7 +1490,7 @@ static Eterm add_monitor(Process *p, DE_Handle *dh, Uint status)
{
Eterm r;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
r = erts_make_ref(p);
add_proc_waiting(dh, p, status, r);
return r;
@@ -1541,7 +1501,7 @@ static void set_driver_reloading(DE_Handle *dh, Process *proc, char *path, char
{
DE_ProcEntry *p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = erts_alloc(ERTS_ALC_T_DDLL_PROCESS, sizeof(DE_ProcEntry));
p->proc = proc;
p->awaiting_status = ERL_DE_OK;
@@ -1562,7 +1522,7 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
int res;
ErlDrvEntry *dp;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if ((res = erts_sys_ddll_open(path, &(dh->handle))) != ERL_DE_NO_ERROR) {
return res;
@@ -1600,7 +1560,7 @@ static int do_load_driver_entry(DE_Handle *dh, char *path, char *name)
goto error;
}
erts_smp_atomic_init_nob(&(dh->refc), (erts_aint_t) 0);
- dh->port_count = 0;
+ erts_smp_atomic32_init_nob(&dh->port_count, 0);
dh->full_path = erts_alloc(ERTS_ALC_T_DDLL_HANDLE, sys_strlen(path) + 1);
sys_strcpy(dh->full_path, path);
dh->flags = 0;
@@ -1626,7 +1586,7 @@ static int do_unload_driver_entry(DE_Handle *dh, Eterm *save_name)
{
erts_driver_t *q, *p = driver_list;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
while (p != NULL) {
if (p->handle == dh) {
@@ -1666,11 +1626,11 @@ static int load_driver_entry(DE_Handle **dhp, char *path, char *name)
int res;
DE_Handle *dh = erts_alloc(ERTS_ALC_T_DDLL_HANDLE, sizeof(DE_Handle));
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
dh->handle = NULL;
dh->procs = NULL;
- dh->port_count = 0;
+ erts_smp_atomic32_init_nob(&dh->port_count, 0);
erts_refc_init(&(dh->refc), (erts_aint_t) 0);
dh->status = -1;
dh->reload_full_path = NULL;
@@ -1704,7 +1664,7 @@ static int reload_driver_entry(DE_Handle *dh)
int loadres;
Uint flags = dh->reload_flags;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
dh->reload_full_path = NULL;
dh->reload_driver_name = NULL;
@@ -1742,7 +1702,7 @@ static void notify_proc(Process *proc, Eterm ref, Eterm driver_name, Eterm type,
ErtsProcLocks rp_locks = 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
if (errcode != 0) {
int need = load_error_need(errcode);
Eterm e;
@@ -1775,7 +1735,7 @@ static void notify_all(DE_Handle *dh, char *name, Uint awaiting, Eterm type, Ete
{
DE_ProcEntry **p;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
p = &(dh->procs);
while (*p != NULL) {
@@ -1881,7 +1841,7 @@ static Eterm mkatom(char *str)
static char *pick_list_or_atom(Eterm name_term)
{
char *name = NULL;
- Uint name_len;
+ ErlDrvSizeT name_len;
if (is_atom(name_term)) {
Atom *ap = atom_tab(atom_val(name_term));
if (ap->len == 0) {
@@ -1897,7 +1857,7 @@ static char *pick_list_or_atom(Eterm name_term)
goto error;
}
name = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, name_len + 1);
- if (io_list_to_buf(name_term, name, name_len) != 0) {
+ if (erts_iolist_to_buf(name_term, name, name_len) != 0) {
goto error;
}
name[name_len] = '\0';
@@ -1918,10 +1878,10 @@ static int build_proc_info(DE_Handle *dh, ProcEntryInfo **out_pei, Uint filter)
int i;
DE_ProcEntry *pe;
- assert_drv_list_locked();
+ assert_drv_list_rwlocked();
for (pe = dh->procs; pe != NULL; pe = pe->next) {
- Eterm id = pe->proc->id;
+ Eterm id = pe->proc->common.id;
Uint stat = pe->awaiting_status;
if (stat == ERL_DE_PROC_AWAIT_UNLOAD_ONLY) {
stat = ERL_DE_PROC_AWAIT_UNLOAD;
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 45dc5fb11c..fabddffc68 100755
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -40,6 +40,8 @@
#include "erl_cpu_topology.h"
#include "erl_async.h"
#include "erl_thr_progress.h"
+#define ERTS_PTAB_WANT_DEBUG_FUNCS__
+#include "erl_ptab.h"
#ifdef HIPE
#include "hipe_arch.h"
#endif
@@ -128,8 +130,6 @@ static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE
static Eterm os_type_tuple;
static Eterm os_version_tuple;
-static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item);
-
static Eterm
current_function(Process* p, Process* rp, Eterm** hpp, int full_info);
static Eterm current_stacktrace(Process* p, Process* rp, Eterm** hpp);
@@ -873,8 +873,7 @@ BIF_RETTYPE process_info_1(BIF_ALIST_1)
&& external_pid_dist_entry(BIF_ARG_1) == erts_this_dist_entry)
BIF_RET(am_undefined);
- if (is_not_internal_pid(BIF_ARG_1)
- || internal_pid_index(BIF_ARG_1) >= erts_max_processes) {
+ if (is_not_internal_pid(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
@@ -909,8 +908,7 @@ BIF_RETTYPE process_info_2(BIF_ALIST_2)
&& external_pid_dist_entry(pid) == erts_this_dist_entry)
BIF_RET(am_undefined);
- if (is_not_internal_pid(pid)
- || internal_pid_index(BIF_ARG_1) >= erts_max_processes) {
+ if (is_not_internal_pid(pid)) {
BIF_ERROR(BIF_P, BADARG);
}
@@ -1002,9 +1000,9 @@ process_info_aux(Process *BIF_P,
switch (item) {
case am_registered_name:
- if (rp->reg != NULL) {
+ if (rp->common.u.alive.reg) {
hp = HAlloc(BIF_P, 3);
- res = rp->reg->name;
+ res = rp->common.u.alive.reg->name;
} else {
if (always_wrap) {
hp = HAlloc(BIF_P, 3);
@@ -1050,7 +1048,7 @@ process_info_aux(Process *BIF_P,
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(rp);
n = rp->msg.len;
- if (n == 0 || rp->trace_flags & F_SENSITIVE) {
+ if (n == 0 || ERTS_TRACE_FLAGS(rp) & F_SENSITIVE) {
hp = HAlloc(BIF_P, 3);
} else {
int remove_bad_messages = 0;
@@ -1209,7 +1207,7 @@ process_info_aux(Process *BIF_P,
INIT_MONITOR_INFOS(mic);
- erts_doforall_links(rp->nlinks,&collect_one_link,&mic);
+ erts_doforall_links(ERTS_P_LINKS(rp),&collect_one_link,&mic);
hp = HAlloc(BIF_P, 3 + mic.sz);
res = NIL;
@@ -1227,7 +1225,7 @@ process_info_aux(Process *BIF_P,
int i;
INIT_MONITOR_INFOS(mic);
- erts_doforall_monitors(rp->monitors,&collect_one_origin_monitor,&mic);
+ erts_doforall_monitors(ERTS_P_MONITORS(rp),&collect_one_origin_monitor,&mic);
hp = HAlloc(BIF_P, 3 + mic.sz);
res = NIL;
for (i = 0; i < mic.mi_i; i++) {
@@ -1264,7 +1262,7 @@ process_info_aux(Process *BIF_P,
Eterm item;
INIT_MONITOR_INFOS(mic);
- erts_doforall_monitors(rp->monitors,&collect_one_target_monitor,&mic);
+ erts_doforall_monitors(ERTS_P_MONITORS(rp),&collect_one_target_monitor,&mic);
hp = HAlloc(BIF_P, 3 + mic.sz);
res = NIL;
@@ -1330,7 +1328,7 @@ process_info_aux(Process *BIF_P,
}
case am_dictionary:
- if (rp->trace_flags & F_SENSITIVE) {
+ if (ERTS_TRACE_FLAGS(rp) & F_SENSITIVE) {
res = NIL;
} else {
res = erts_dictionary_copy(BIF_P, rp->dictionary);
@@ -1338,13 +1336,15 @@ process_info_aux(Process *BIF_P,
hp = HAlloc(BIF_P, 3);
break;
- case am_trap_exit:
+ case am_trap_exit: {
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state);
hp = HAlloc(BIF_P, 3);
- if (rp->flags & F_TRAPEXIT)
+ if (state & ERTS_PSFLG_TRAP_EXIT)
res = am_true;
else
res = am_false;
break;
+ }
case am_error_handler:
hp = HAlloc(BIF_P, 3);
@@ -1424,8 +1424,8 @@ process_info_aux(Process *BIF_P,
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(rp);
- erts_doforall_links(rp->nlinks, &one_link_size, &size);
- erts_doforall_monitors(rp->monitors, &one_mon_size, &size);
+ erts_doforall_links(ERTS_P_LINKS(rp), &one_link_size, &size);
+ erts_doforall_monitors(ERTS_P_MONITORS(rp), &one_mon_size, &size);
size += (rp->heap_sz + rp->mbuf_sz) * sizeof(Eterm);
if (rp->old_hend && rp->old_heap)
size += (rp->old_hend - rp->old_heap) * sizeof(Eterm);
@@ -1498,7 +1498,7 @@ process_info_aux(Process *BIF_P,
case am_trace:
hp = HAlloc(BIF_P, 3);
- res = make_small(rp->trace_flags & TRACEE_FLAGS);
+ res = make_small(ERTS_TRACE_FLAGS(rp) & TRACEE_FLAGS);
break;
case am_binary: {
@@ -1603,7 +1603,7 @@ current_function(Process* BIF_P, Process* rp, Eterm** hpp, int full_info)
}
}
- if (BIF_P->id == rp->id) {
+ if (BIF_P == rp) {
FunctionInfo fi2;
/*
@@ -1835,17 +1835,17 @@ info_1_tuple(Process* BIF_P, /* Pointer to current process. */
# define ERTS_ERROR_CHECKER_PRINTF_XML VALGRIND_PRINTF_XML
# endif
#endif
- Uint buf_size = 8*1024; /* Try with 8KB first */
+ ErlDrvSizeT buf_size = 8*1024; /* Try with 8KB first */
char *buf = erts_alloc(ERTS_ALC_T_TMP, buf_size);
- int r = io_list_to_buf(*tp, (char*) buf, buf_size - 1);
- if (r < 0) {
+ ErlDrvSizeT r = erts_iolist_to_buf(*tp, (char*) buf, buf_size - 1);
+ if (ERTS_IOLIST_TO_BUF_FAILED(r)) {
erts_free(ERTS_ALC_T_TMP, (void *) buf);
if (erts_iolist_size(*tp, &buf_size)) {
goto badarg;
}
buf_size++;
buf = erts_alloc(ERTS_ALC_T_TMP, buf_size);
- r = io_list_to_buf(*tp, (char*) buf, buf_size - 1);
+ r = erts_iolist_to_buf(*tp, (char*) buf, buf_size - 1);
ASSERT(r == buf_size - 1);
}
buf[buf_size - 1 - r] = '\0';
@@ -2157,9 +2157,13 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
res = TUPLE2(hp, am_min_bin_vheap_size,make_small(BIN_VH_MIN_SIZE));
BIF_RET(res);
} else if (BIF_ARG_1 == am_process_count) {
- BIF_RET(make_small(erts_process_count()));
+ BIF_RET(make_small(erts_ptab_count(&erts_proc)));
} else if (BIF_ARG_1 == am_process_limit) {
- BIF_RET(make_small(erts_max_processes));
+ BIF_RET(make_small(erts_ptab_max(&erts_proc)));
+ } else if (BIF_ARG_1 == am_port_count) {
+ BIF_RET(make_small(erts_ptab_count(&erts_port)));
+ } else if (BIF_ARG_1 == am_port_limit) {
+ BIF_RET(make_small(erts_ptab_max(&erts_port)));
} else if (BIF_ARG_1 == am_info
|| BIF_ARG_1 == am_procs
|| BIF_ARG_1 == am_loaded
@@ -2532,6 +2536,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
} else if (ERTS_IS_ATOM_STR("run_queues", BIF_ARG_1)) {
res = make_small(erts_no_run_queues);
BIF_RET(res);
+ } else if (ERTS_IS_ATOM_STR("port_parallelism", BIF_ARG_1)) {
+ res = erts_port_parallelism ? am_true : am_false;
+ BIF_RET(res);
} else if (ERTS_IS_ATOM_STR("c_compiler_used", BIF_ARG_1)) {
Eterm *hp = NULL;
Uint sz = 0;
@@ -2699,66 +2706,6 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
BIF_ERROR(BIF_P, BADARG);
}
-BIF_RETTYPE
-port_info_1(BIF_ALIST_1)
-{
- Process* p = BIF_P;
- Eterm pid = BIF_ARG_1;
- static Eterm keys[] = {
- am_name,
- am_links,
- am_id,
- am_connected,
- am_input,
- am_output,
- am_os_pid
- };
- Eterm items[ASIZE(keys)];
- Eterm result = NIL;
- Eterm reg_name;
- Eterm* hp;
- Uint need;
- int i;
-
- /*
- * Collect all information about the port.
- */
-
- for (i = 0; i < ASIZE(keys); i++) {
- Eterm item;
-
- item = port_info(p, pid, keys[i]);
- if (is_non_value(item)) {
- return THE_NON_VALUE;
- }
- if (item == am_undefined) {
- return am_undefined;
- }
- items[i] = item;
- }
- reg_name = port_info(p, pid, am_registered_name);
-
- /*
- * Build the resulting list.
- */
-
- need = 2*ASIZE(keys);
- if (is_tuple(reg_name)) {
- need += 2;
- }
- hp = HAlloc(p, need);
- for (i = ASIZE(keys) - 1; i >= 0; i--) {
- result = CONS(hp, items[i], result);
- hp += 2;
- }
- if (is_tuple(reg_name)) {
- result = CONS(hp, reg_name, result);
- }
-
- return result;
-}
-
-
/**********************************************************************/
/* Return information on ports */
/* Info:
@@ -2771,38 +2718,20 @@ port_info_1(BIF_ALIST_1)
** os_pid The child's process ID
*/
-BIF_RETTYPE port_info_2(BIF_ALIST_2)
+Eterm
+erts_bld_port_info(Eterm **hpp, ErlOffHeap *ohp, Uint *szp, Port *prt, Eterm item)
{
- return port_info(BIF_P, BIF_ARG_1, BIF_ARG_2);
-}
+ Eterm res = THE_NON_VALUE;
-static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item)
-{
- BIF_RETTYPE ret;
- Port *prt;
- Eterm res;
- Eterm* hp;
- int count;
-
- if (is_internal_port(portid))
- prt = erts_id2port(portid, p, ERTS_PROC_LOCK_MAIN);
- else if (is_atom(portid))
- erts_whereis_name(p, ERTS_PROC_LOCK_MAIN,
- portid, NULL, 0, 0, &prt);
- else if (is_external_port(portid)
- && external_port_dist_entry(portid) == erts_this_dist_entry)
- BIF_RET(am_undefined);
- else {
- BIF_ERROR(p, BADARG);
- }
-
- if (!prt) {
- BIF_RET(am_undefined);
- }
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
if (item == am_id) {
- hp = HAlloc(p, 3);
- res = make_small(internal_port_number(portid));
+ if (hpp)
+ res = make_small(internal_port_index(prt->common.id));
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_links) {
MonitorInfoCollection mic;
@@ -2811,17 +2740,26 @@ static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item)
INIT_MONITOR_INFOS(mic);
- erts_doforall_links(prt->nlinks, &collect_one_link, &mic);
+ erts_doforall_links(ERTS_P_LINKS(prt), &collect_one_link, &mic);
- hp = HAlloc(p, 3 + mic.sz);
- res = NIL;
- for (i = 0; i < mic.mi_i; i++) {
- item = STORE_NC(&hp, &MSO(p), mic.mi[i].entity);
- res = CONS(hp, item, res);
- hp += 2;
+ if (szp)
+ *szp += mic.sz;
+
+ if (hpp) {
+ res = NIL;
+ for (i = 0; i < mic.mi_i; i++) {
+ item = STORE_NC(hpp, ohp, mic.mi[i].entity);
+ res = CONS(*hpp, item, res);
+ *hpp += 2;
+ }
}
+
DESTROY_MONITOR_INFOS(mic);
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_monitors) {
MonitorInfoCollection mic;
@@ -2830,79 +2768,96 @@ static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item)
INIT_MONITOR_INFOS(mic);
- erts_doforall_monitors(prt->monitors, &collect_one_origin_monitor, &mic);
+ erts_doforall_monitors(ERTS_P_MONITORS(prt), &collect_one_origin_monitor, &mic);
- hp = HAlloc(p, 3 + mic.sz);
- res = NIL;
- for (i = 0; i < mic.mi_i; i++) {
- Eterm t;
- item = STORE_NC(&hp, &MSO(p), mic.mi[i].entity);
- t = TUPLE2(hp, am_process, item);
- hp += 3;
- res = CONS(hp, t, res);
- hp += 2;
+ if (szp)
+ *szp += mic.sz;
+
+ if (hpp) {
+ res = NIL;
+ for (i = 0; i < mic.mi_i; i++) {
+ Eterm t;
+ item = STORE_NC(hpp, ohp, mic.mi[i].entity);
+ t = TUPLE2(*hpp, am_process, item);
+ *hpp += 3;
+ res = CONS(*hpp, t, res);
+ *hpp += 2;
+ }
}
+
DESTROY_MONITOR_INFOS(mic);
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_name) {
- count = sys_strlen(prt->name);
+ int count = sys_strlen(prt->name);
+
+ if (hpp)
+ res = buf_to_intlist(hpp, prt->name, count, NIL);
- hp = HAlloc(p, 3 + 2*count);
- res = buf_to_intlist(&hp, prt->name, count, NIL);
+ if (szp) {
+ *szp += 2*count;
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_connected) {
- hp = HAlloc(p, 3);
- res = prt->connected; /* internal pid */
+ if (hpp)
+ res = ERTS_PORT_GET_CONNECTED(prt); /* internal pid */
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_input) {
- Uint hsz = 3;
- Uint n = prt->bytes_in;
- (void) erts_bld_uint(NULL, &hsz, n);
- hp = HAlloc(p, hsz);
- res = erts_bld_uint(&hp, NULL, n);
+ res = erts_bld_uint(hpp, szp, prt->bytes_in);
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_output) {
- Uint hsz = 3;
- Uint n = prt->bytes_out;
- (void) erts_bld_uint(NULL, &hsz, n);
- hp = HAlloc(p, hsz);
- res = erts_bld_uint(&hp, NULL, n);
+ res = erts_bld_uint(hpp, szp, prt->bytes_out);
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_os_pid) {
- if (prt->os_pid >= 0) {
- Uint hsz = 3;
- UWord n = prt->os_pid;
- (void) erts_bld_uword(NULL, &hsz, n);
- hp = HAlloc(p, hsz);
- res = erts_bld_uword(&hp, NULL, n);
- } else {
- hp = HAlloc(p, 3);
- res = am_undefined;
- }
+ res = (prt->os_pid < 0
+ ? am_undefined
+ : erts_bld_uword(hpp, szp, (UWord) prt->os_pid));
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_registered_name) {
- RegProc *reg;
- reg = prt->reg;
- if (reg == NULL) {
- ERTS_BIF_PREP_RET(ret, NIL);
- goto done;
- } else {
- hp = HAlloc(p, 3);
+ RegProc *reg = prt->common.u.alive.reg;
+ if (reg) {
res = reg->name;
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
+ }
+ else {
+ if (szp)
+ return am_undefined;
+ return NIL;
}
}
else if (item == am_memory) {
/* All memory consumed in bytes (the Port struct should not be
included though).
*/
- Uint hsz = 3;
Uint size = 0;
ErlHeapFragment* bp;
- hp = HAlloc(p, 3);
-
- erts_doforall_links(prt->nlinks, &one_link_size, &size);
+ erts_doforall_links(ERTS_P_LINKS(prt), &one_link_size, &size);
for (bp = prt->bp; bp; bp = bp->next)
size += sizeof(ErlHeapFragment) + (bp->alloc_size - 1)*sizeof(Eterm);
@@ -2916,51 +2871,72 @@ static BIF_RETTYPE port_info(Process* p, Eterm portid, Eterm item)
/* All memory allocated by the driver should be included, but it is
hard to retrieve... */
- (void) erts_bld_uint(NULL, &hsz, size);
- hp = HAlloc(p, hsz);
- res = erts_bld_uint(&hp, NULL, size);
+ res = erts_bld_uint(hpp, szp, size);
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (item == am_queue_size) {
Uint ioq_size = erts_port_ioq_size(prt);
- Uint hsz = 3;
- (void) erts_bld_uint(NULL, &hsz, ioq_size);
- hp = HAlloc(p, hsz);
- res = erts_bld_uint(&hp, NULL, ioq_size);
+ res = erts_bld_uint(hpp, szp, ioq_size);
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
}
else if (ERTS_IS_ATOM_STR("locking", item)) {
- hp = HAlloc(p, 3);
+ if (hpp) {
#ifndef ERTS_SMP
- res = am_false;
+ res = am_false;
#else
- if (prt->status & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) {
- DECL_AM(port_level);
- ASSERT(prt->drv_ptr->flags
- & ERL_DRV_FLAG_USE_PORT_LOCKING);
- res = AM_port_level;
+ if (erts_atomic32_read_nob(&prt->state)
+ & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK) {
+ DECL_AM(port_level);
+ ASSERT(prt->drv_ptr->flags
+ & ERL_DRV_FLAG_USE_PORT_LOCKING);
+ res = AM_port_level;
+ }
+ else {
+ DECL_AM(driver_level);
+ ASSERT(!(prt->drv_ptr->flags
+ & ERL_DRV_FLAG_USE_PORT_LOCKING));
+ res = AM_driver_level;
+ }
+#endif
}
- else {
- DECL_AM(driver_level);
- ASSERT(!(prt->drv_ptr->flags
- & ERL_DRV_FLAG_USE_PORT_LOCKING));
- res = AM_driver_level;
+ if (szp) {
+ res = am_true;
+ goto done;
}
-#endif
+ }
+ else if (item == am_parallelism) {
+ if (szp) {
+ res = am_true;
+ goto done;
+ }
+ res = ((ERTS_PTS_FLG_PARALLELISM &
+ erts_smp_atomic32_read_nob(&prt->sched.flags))
+ ? am_true
+ : am_false);
}
else {
- ERTS_BIF_PREP_ERROR(ret, p, BADARG);
- goto done;
+ if (szp)
+ return am_false;
+ return THE_NON_VALUE;
}
- ERTS_BIF_PREP_RET(ret, TUPLE2(hp, item, res));
-
- done:
-
- erts_smp_port_unlock(prt);
+done:
+ if (szp)
+ *szp += 3;
+ if (hpp) {
+ res = TUPLE2(*hpp, item, res);
+ *hpp += 3;
+ }
- return ret;
+ return res;
}
-
BIF_RETTYPE
fun_info_2(BIF_ALIST_2)
{
@@ -3092,21 +3068,16 @@ BIF_RETTYPE is_process_alive_1(BIF_ALIST_1)
if(is_internal_pid(BIF_ARG_1)) {
Process *rp;
- if (BIF_ARG_1 == BIF_P->id)
+ if (BIF_ARG_1 == BIF_P->common.id)
BIF_RET(am_true);
- if(internal_pid_index(BIF_ARG_1) >= erts_max_processes)
- BIF_ERROR(BIF_P, BADARG);
-
- rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
- BIF_ARG_1, ERTS_PROC_LOCK_STATUS);
+ rp = erts_proc_lookup(BIF_ARG_1);
if (!rp) {
BIF_RET(am_false);
}
else {
- int have_pending_exit = ERTS_PROC_PENDING_EXIT(rp);
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
- if (have_pending_exit)
+ if (erts_smp_atomic32_read_acqb(&rp->state)
+ & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING))
ERTS_BIF_AWAIT_X_DATA_TRAP(BIF_P, BIF_ARG_1, am_false);
else
BIF_RET(am_true);
@@ -3317,10 +3288,9 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
/* Used by node_container_SUITE (emulator) */
Eterm res;
if (ERTS_IS_ATOM_STR("next_pid", BIF_ARG_1))
- res = erts_test_next_pid(0, 0);
- else {
- res = erts_test_next_port(0, 0);
- }
+ res = erts_ptab_test_next_id(&erts_proc, 0, 0);
+ else
+ res = erts_ptab_test_next_id(&erts_port, 0, 0);
if (res < 0)
BIF_RET(am_false);
BIF_RET(erts_make_integer(res, BIF_P));
@@ -3356,11 +3326,11 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
}
else if (ERTS_IS_ATOM_STR("processes", BIF_ARG_1)) {
/* Used by process_SUITE (emulator) */
- BIF_RET(erts_debug_processes(BIF_P));
+ BIF_RET(erts_debug_ptab_list(BIF_P, &erts_proc));
}
else if (ERTS_IS_ATOM_STR("processes_bif_info", BIF_ARG_1)) {
/* Used by process_SUITE (emulator) */
- BIF_RET(erts_debug_processes_bif_info(BIF_P));
+ BIF_RET(erts_debug_ptab_list_bif_info(BIF_P, &erts_proc));
}
else if (ERTS_IS_ATOM_STR("max_atom_out_cache_index", BIF_ARG_1)) {
/* Used by distribution_SUITE (emulator) */
@@ -3421,17 +3391,20 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P);
BIF_RET(am_undefined);
}
- res = make_link_list(BIF_P, p->nlinks, NIL);
+ res = make_link_list(BIF_P, ERTS_P_LINKS(p), NIL);
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK);
BIF_RET(res);
}
else if(is_internal_port(tp[2])) {
Eterm res;
- Port *p = erts_id2port(tp[2], BIF_P, ERTS_PROC_LOCK_MAIN);
+ Port *p = erts_id2port_sflgs(tp[2],
+ BIF_P,
+ ERTS_PROC_LOCK_MAIN,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP);
if(!p)
BIF_RET(am_undefined);
- res = make_link_list(BIF_P, p->nlinks, NIL);
- erts_smp_port_unlock(p);
+ res = make_link_list(BIF_P, ERTS_P_LINKS(p), NIL);
+ erts_port_release(p);
BIF_RET(res);
}
else if(is_node_name_atom(tp[2])) {
@@ -3463,7 +3436,7 @@ BIF_RETTYPE erts_debug_get_internal_state_1(BIF_ALIST_1)
ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P);
BIF_RET(am_undefined);
}
- res = make_monitor_list(BIF_P, p->monitors);
+ res = make_monitor_list(BIF_P, ERTS_P_MONITORS(p));
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_LINK);
BIF_RET(res);
} else if(is_node_name_atom(tp[2])) {
@@ -3606,7 +3579,7 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
erts_aint_t prev_on = erts_smp_atomic_xchg_nob(&available_internal_state, on);
if (on) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
- erts_dsprintf(dsbufp, "Process %T ", BIF_P->id);
+ erts_dsprintf(dsbufp, "Process %T ", BIF_P->common.id);
if (erts_is_alive)
erts_dsprintf(dsbufp, "on node %T ", erts_this_node->sysname);
erts_dsprintf(dsbufp,
@@ -3674,10 +3647,9 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
Eterm res;
if (ERTS_IS_ATOM_STR("next_pid", BIF_ARG_1))
- res = erts_test_next_pid(1, next);
- else {
- res = erts_test_next_port(1, next);
- }
+ res = erts_ptab_test_next_id(&erts_proc, 1, next);
+ else
+ res = erts_ptab_test_next_id(&erts_port, 1, next);
if (res < 0)
BIF_RET(am_false);
BIF_RET(erts_make_integer(res, BIF_P));
@@ -3710,9 +3682,8 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
&& is_internal_pid(tp[2])) {
int xres;
ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- Process *rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN,
- tp[2], rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ Process *rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
+ tp[2], rp_locks);
if (!rp) {
DECL_AM(dead);
BIF_RET(AM_dead);
@@ -3738,7 +3709,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
rp_locks &= ~ERTS_PROC_LOCK_MAIN;
#endif
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
if (xres > 1) {
DECL_AM(message);
BIF_RET(AM_message);
@@ -3949,9 +3919,9 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock
id = am_atom_put(ltype, strlen(ltype));
} else if (lock->flag & ERTS_LCNT_LT_PROCLOCK) {
/* use registered names as id's for process locks if available */
- proc = erts_pid2proc_unlocked(lock->id);
- if (proc && proc->reg) {
- id = proc->reg->name;
+ proc = erts_proc_lookup(lock->id);
+ if (proc && proc->common.u.alive.reg) {
+ id = proc->common.u.alive.reg->name;
} else {
/* otherwise use process id */
id = lock->id;
diff --git a/erts/emulator/beam/erl_bif_op.c b/erts/emulator/beam/erl_bif_op.c
index 13f8b1f63c..d4cd9c89b3 100644
--- a/erts/emulator/beam/erl_bif_op.c
+++ b/erts/emulator/beam/erl_bif_op.c
@@ -261,11 +261,6 @@ Eterm erl_is_function(Process* p, Eterm arg1, Eterm arg2)
if (exp->code[2] == (Uint) arity) {
BIF_RET(am_true);
}
- } else if (is_tuple(arg1)) {
- Eterm* tp = tuple_val(arg1);
- if (tp[0] == make_arityval(2) && is_atom(tp[1]) && is_atom(tp[2])) {
- BIF_RET(am_true);
- }
}
BIF_RET(am_false);
}
diff --git a/erts/emulator/beam/erl_bif_os.c b/erts/emulator/beam/erl_bif_os.c
index 831e05493a..1062d4379b 100644
--- a/erts/emulator/beam/erl_bif_os.c
+++ b/erts/emulator/beam/erl_bif_os.c
@@ -58,7 +58,7 @@ BIF_RETTYPE os_getpid_0(BIF_ALIST_0)
char pid_string[21]; /* enough for a 64 bit number */
int n;
Eterm* hp;
- sys_get_pid(pid_string); /* In sys.c */
+ sys_get_pid(pid_string, sizeof(pid_string)); /* In sys.c */
n = sys_strlen(pid_string);
hp = HAlloc(BIF_P, n*2);
BIF_RET(buf_to_intlist(&hp, pid_string, n, NIL));
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index f9009166c0..81146e38d7 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -42,28 +42,26 @@
#include "erl_bits.h"
#include "dtrace-wrapper.h"
-static int open_port(Process* p, Eterm name, Eterm settings, int *err_nump);
+static Port *open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump);
static byte* convert_environment(Process* p, Eterm env);
static char **convert_args(Eterm);
static void free_args(char **);
char *erts_default_arg0 = "default";
-static BIF_RETTYPE
-port_call(Process* p, Eterm arg1, Eterm arg2, Eterm arg3);
-
BIF_RETTYPE open_port_2(BIF_ALIST_2)
{
- int port_num;
- Eterm port_val;
+ Port *port;
+ Eterm port_id;
char *str;
- int err_num;
+ int err_type, err_num;
- if ((port_num = open_port(BIF_P, BIF_ARG_1, BIF_ARG_2, &err_num)) < 0) {
- if (port_num == -3) {
+ port = open_port(BIF_P, BIF_ARG_1, BIF_ARG_2, &err_type, &err_num);
+ if (!port) {
+ if (err_type == -3) {
ASSERT(err_num == BADARG || err_num == SYSTEM_LIMIT);
BIF_ERROR(BIF_P, err_num);
- } else if (port_num == -2) {
+ } else if (err_type == -2) {
str = erl_errno_id(err_num);
} else {
str = "einval";
@@ -74,546 +72,408 @@ BIF_RETTYPE open_port_2(BIF_ALIST_2)
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
- port_val = erts_port[port_num].id;
- erts_add_link(&(erts_port[port_num].nlinks), LINK_PID, BIF_P->id);
- erts_add_link(&(BIF_P->nlinks), LINK_PID, port_val);
+ port_id = port->common.id;
+ erts_add_link(&ERTS_P_LINKS(port), LINK_PID, BIF_P->common.id);
+ erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, port_id);
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK);
- erts_port_release(&erts_port[port_num]);
+ erts_port_release(port);
- BIF_RET(port_val);
+ BIF_RET(port_id);
}
-/****************************************************************************
-
- PORT BIFS:
-
- port_command/2 -- replace Port ! {..., {command, Data}}
- port_command(Port, Data) -> true
- when port(Port), io-list(Data)
-
- port_control/3 -- new port_control(Port, Ctl, Data) -> Reply
- port_control(Port, Ctl, Data) -> Reply
- where integer(Ctl), io-list(Data), io-list(Reply)
-
- port_close/1 -- replace Port ! {..., close}
- port_close(Port) -> true
- when port(Port)
-
- port_connect/2 -- replace Port ! {..., {connect, Pid}}
- port_connect(Port, Pid)
- when port(Port), pid(Pid)
-
- ***************************************************************************/
-
-static Port*
-id_or_name2port(Process *c_p, Eterm id)
+static ERTS_INLINE Port *
+lookup_port(Process *c_p, Eterm id_or_name)
{
- Port *port;
- if (is_not_atom(id))
- port = erts_id2port(id, c_p, ERTS_PROC_LOCK_MAIN);
+ /* TODO: Implement nicer lookup in register... */
+ Eterm id;
+ if (is_atom(id_or_name))
+ id = erts_whereis_name_to_id(c_p, id_or_name);
else
- erts_whereis_name(c_p, ERTS_PROC_LOCK_MAIN, id, NULL, 0, 0, &port);
- return port;
+ id = id_or_name;
+ return erts_port_lookup(id, ERTS_PORT_SFLGS_INVALID_LOOKUP);
}
-#define ERTS_PORT_COMMAND_FLAG_FORCE (((Uint32) 1) << 0)
-#define ERTS_PORT_COMMAND_FLAG_NOSUSPEND (((Uint32) 1) << 1)
+/*
+ * erts_internal:port_command/3 is used by the
+ * erlang:port_command/2 and erlang:port_command/3
+ * BIFs.
+ */
-static BIF_RETTYPE
-do_port_command(Process *BIF_P, Eterm arg1, Eterm arg2, Eterm arg3,
- Uint32 flags)
+BIF_RETTYPE erts_internal_port_command_3(BIF_ALIST_3)
{
BIF_RETTYPE res;
- Port *p;
-
- /* Trace sched out before lock check wait */
- if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(BIF_P, am_out);
- }
-
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(BIF_P, am_inactive);
- }
-
- p = id_or_name2port(BIF_P, arg1);
- if (!p) {
- if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(BIF_P, am_in);
+ Port *prt;
+ int flags = 0;
+ Eterm ref;
+
+ if (is_not_nil(BIF_ARG_3)) {
+ Eterm l = BIF_ARG_3;
+ while (is_list(l)) {
+ Eterm* cons = list_val(l);
+ Eterm car = CAR(cons);
+ if (car == am_force)
+ flags |= ERTS_PORT_SIG_FLG_FORCE;
+ else if (car == am_nosuspend)
+ flags |= ERTS_PORT_SIG_FLG_NOSUSPEND;
+ else
+ BIF_RET(am_badarg);
+ l = CDR(cons);
}
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(BIF_P, am_active);
- }
- BIF_ERROR(BIF_P, BADARG);
+ if (!is_nil(l))
+ BIF_RET(am_badarg);
}
-
- /* Trace port in, id_or_name2port causes wait */
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(p, am_in, am_command);
- }
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) {
- profile_runnable_port(p, am_active);
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
+
+ if (flags & ERTS_PORT_SIG_FLG_FORCE) {
+ if (!(prt->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY))
+ BIF_RET(am_notsup);
}
- ERTS_BIF_PREP_RET(res, am_true);
+#ifdef DEBUG
+ ref = NIL;
+#endif
- if ((flags & ERTS_PORT_COMMAND_FLAG_FORCE)
- && !(p->drv_ptr->flags & ERL_DRV_FLAG_SOFT_BUSY)) {
- ERTS_BIF_PREP_ERROR(res, BIF_P, EXC_NOTSUP);
- }
- else if (!(flags & ERTS_PORT_COMMAND_FLAG_FORCE)
- && p->status & ERTS_PORT_SFLG_PORT_BUSY) {
- if (flags & ERTS_PORT_COMMAND_FLAG_NOSUSPEND) {
+ switch (erts_port_output(BIF_P, flags, prt, prt->common.id, BIF_ARG_2, &ref)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DROPPED:
+ ERTS_BIF_PREP_RET(res, am_badarg);
+ break;
+ case ERTS_PORT_OP_BUSY:
+ ASSERT(!(flags & ERTS_PORT_SIG_FLG_FORCE));
+ if (flags & ERTS_PORT_SIG_FLG_NOSUSPEND)
ERTS_BIF_PREP_RET(res, am_false);
- }
else {
- erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, p);
- if (erts_system_monitor_flags.busy_port) {
- monitor_generic(BIF_P, am_busy_port, p->id);
- }
- ERTS_BIF_PREP_YIELD3(res, bif_export[BIF_port_command_3], BIF_P,
- arg1, arg2, arg3);
- }
- } else {
- int wres;
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- ERTS_SMP_CHK_NO_PROC_LOCKS;
- wres = erts_write_to_port(BIF_P->id, p, arg2);
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- if (wres != 0) {
- ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ erts_suspend(BIF_P, ERTS_PROC_LOCK_MAIN, prt);
+ ERTS_BIF_PREP_YIELD3(res, bif_export[BIF_erts_internal_port_command_3],
+ BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
}
- }
-
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(p, am_out, am_command);
- }
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) {
- profile_runnable_port(p, am_inactive);
+ break;
+ case ERTS_PORT_OP_BUSY_SCHEDULED:
+ ASSERT(!(flags & ERTS_PORT_SIG_FLG_FORCE));
+ /* Fall through... */
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(ref));
+ ERTS_BIF_PREP_RET(res, ref);
+ break;
+ case ERTS_PORT_OP_DONE:
+ ERTS_BIF_PREP_RET(res, am_true);
+ break;
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_output() result");
+ break;
}
- erts_port_release(p);
- /* Trace sched in after port release */
- if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(BIF_P, am_in);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(BIF_P, am_active);
- }
-
if (ERTS_PROC_IS_EXITING(BIF_P)) {
KILL_CATCHES(BIF_P); /* Must exit */
ERTS_BIF_PREP_ERROR(res, BIF_P, EXC_ERROR);
}
- return res;
-}
-BIF_RETTYPE port_command_2(BIF_ALIST_2)
-{
- return do_port_command(BIF_P, BIF_ARG_1, BIF_ARG_2, NIL, 0);
+ return res;
}
-BIF_RETTYPE port_command_3(BIF_ALIST_3)
+BIF_RETTYPE erts_internal_port_call_3(BIF_ALIST_3)
{
- Eterm l = BIF_ARG_3;
- Uint32 flags = 0;
- while (is_list(l)) {
- Eterm* cons = list_val(l);
- Eterm car = CAR(cons);
- if (car == am_force) {
- flags |= ERTS_PORT_COMMAND_FLAG_FORCE;
- } else if (car == am_nosuspend) {
- flags |= ERTS_PORT_COMMAND_FLAG_NOSUSPEND;
- } else {
- BIF_ERROR(BIF_P, BADARG);
- }
- l = CDR(cons);
- }
- if(!is_nil(l)) {
- BIF_ERROR(BIF_P, BADARG);
+ Port* prt;
+ Eterm retval;
+ Uint uint_op;
+ unsigned int op;
+ erts_aint32_t state;
+
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
+
+ if (!term_to_Uint(BIF_ARG_2, &uint_op))
+ BIF_RET(am_badarg);
+
+ if (uint_op > (Uint) UINT_MAX)
+ BIF_RET(am_badarg);
+
+ op = (unsigned int) uint_op;
+
+ switch (erts_port_call(BIF_P, prt, op, BIF_ARG_3, &retval)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_DROPPED:
+ case ERTS_PORT_OP_BADARG:
+ retval = am_badarg;
+ break;
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(retval));
+ break;
+ case ERTS_PORT_OP_DONE:
+ ASSERT(is_not_internal_ref(retval));
+ break;
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_call() result");
+ retval = am_internal_error;
+ break;
}
- return do_port_command(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, flags);
-}
-BIF_RETTYPE port_call_2(BIF_ALIST_2)
-{
- return port_call(BIF_P,BIF_ARG_1, make_small(0), BIF_ARG_2);
-}
+ state = erts_smp_atomic32_read_acqb(&BIF_P->state);
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) {
+#ifdef ERTS_SMP
+ if (state & ERTS_PSFLG_PENDING_EXIT)
+ erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN);
+#endif
+ ERTS_BIF_EXITED(BIF_P);
+ }
-BIF_RETTYPE port_call_3(BIF_ALIST_3)
-{
- return port_call(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+ BIF_RET(retval);
}
-static BIF_RETTYPE
-port_call(Process* c_p, Eterm arg1, Eterm arg2, Eterm arg3)
+BIF_RETTYPE erts_internal_port_control_3(BIF_ALIST_3)
{
- Uint op;
- Port *p;
- Uint size;
- byte *bytes;
- byte *endp;
- ErlDrvSizeT real_size;
- erts_driver_t *drv;
- byte port_input[256]; /* Default input buffer to encode in */
- byte port_result[256]; /* Buffer for result from port. */
- byte* port_resp; /* Pointer to result buffer. */
- char *prc;
- ErlDrvSSizeT ret;
- Eterm res;
- Sint result_size;
- Eterm *hp;
- Eterm *hp_end;
- unsigned ret_flags = 0U;
- int fpe_was_unmasked;
-
- bytes = &port_input[0];
- port_resp = port_result;
- /* trace of port scheduling with virtual process descheduling
- * lock wait
- */
- if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(c_p, am_out);
- }
-
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(c_p, am_inactive);
+ Port* prt;
+ Eterm retval;
+ Uint uint_op;
+ unsigned int op;
+ erts_aint32_t state;
+
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
+
+ if (!term_to_Uint(BIF_ARG_2, &uint_op))
+ BIF_RET(am_badarg);
+
+ if (uint_op > (Uint) UINT_MAX)
+ BIF_RET(am_badarg);
+
+ op = (unsigned int) uint_op;
+
+ switch (erts_port_control(BIF_P, prt, op, BIF_ARG_3, &retval)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DROPPED:
+ retval = am_badarg;
+ break;
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(retval));
+ break;
+ case ERTS_PORT_OP_DONE:
+ ASSERT(is_not_internal_ref(retval));
+ break;
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_control() result");
+ retval = am_internal_error;
+ break;
}
- p = id_or_name2port(c_p, arg1);
- if (!p) {
- error:
- if (port_resp != port_result &&
- !(ret_flags & DRIVER_CALL_KEEP_BUFFER)) {
- driver_free(port_resp);
- }
- if (bytes != &port_input[0])
- erts_free(ERTS_ALC_T_PORT_CALL_BUF, bytes);
- /* Need to virtual schedule in the process if there
- * was an error.
- */
- if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(c_p, am_in);
- }
-
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(c_p, am_active);
- }
-
- if (p)
- erts_port_release(p);
+ state = erts_smp_atomic32_read_acqb(&BIF_P->state);
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT)) {
#ifdef ERTS_SMP
- ERTS_SMP_BIF_CHK_PENDING_EXIT(c_p, ERTS_PROC_LOCK_MAIN);
-#else
- ERTS_BIF_CHK_EXITED(c_p);
+ if (state & ERTS_PSFLG_PENDING_EXIT)
+ erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN);
#endif
- BIF_ERROR(c_p, BADARG);
- }
-
- if ((drv = p->drv_ptr) == NULL) {
- goto error;
- }
- if (drv->call == NULL) {
- goto error;
- }
- if (!term_to_Uint(arg2, &op)) {
- goto error;
- }
- p->caller = c_p->id;
-
- /* Lock taken, virtual schedule of port */
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(p, am_in, am_call);
- }
-
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) {
- profile_runnable_port(p, am_active);
+ ERTS_BIF_EXITED(BIF_P);
}
- size = erts_encode_ext_size(arg3);
- if (size > sizeof(port_input))
- bytes = erts_alloc(ERTS_ALC_T_PORT_CALL_BUF, size);
- endp = bytes;
- erts_encode_ext(arg3, &endp);
+ BIF_RET(retval);
+}
- real_size = endp - bytes;
- if (real_size > size) {
- erl_exit(1, "%s, line %d: buffer overflow: %d word(s)\n",
- __FILE__, __LINE__, endp - (bytes + size));
- }
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
-#ifdef USE_VM_PROBES
- if (DTRACE_ENABLED(driver_call)) {
- DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE);
- DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE);
+/*
+ * erts_internal:port_close/1 is used by the
+ * erlang:port_close/1 BIF.
+ */
+BIF_RETTYPE erts_internal_port_close_1(BIF_ALIST_1)
+{
+ Eterm ref;
+ Port *prt;
- dtrace_pid_str(p->connected, process_str);
- dtrace_port_str(p, port_str);
- DTRACE5(driver_call, process_str, port_str, p->name, op, real_size);
- }
-#endif
- prc = (char *) port_resp;
- fpe_was_unmasked = erts_block_fpe();
- ret = drv->call((ErlDrvData)p->drv_data,
- (unsigned) op,
- (char *) bytes,
- (int) real_size,
- &prc,
- (int) sizeof(port_result),
- &ret_flags);
- erts_unblock_fpe(fpe_was_unmasked);
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(p, am_out, am_call);
- }
-
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) {
- profile_runnable_port(p, am_inactive);
- }
-
- port_resp = (byte *) prc;
- p->caller = NIL;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
-#ifdef HARDDEBUG
- {
- ErlDrvSizeT z;
- printf("real_size = %ld,%d, ret = %ld,%d\r\n", (unsigned long) real_size,
- (int) real_size, (unsigned long)ret, (int) ret);
- printf("[");
- for(z = 0; z < real_size; ++z) {
- printf("%d, ",(int) bytes[z]);
- }
- printf("]\r\n");
- printf("[");
- for(z = 0; z < ret; ++z) {
- printf("%d, ",(int) port_resp[z]);
- }
- printf("]\r\n");
- }
-#endif
- if (ret <= 0 || port_resp[0] != VERSION_MAGIC) {
- /* Error or a binary without magic/ with wrong magic */
- goto error;
- }
- result_size = erts_decode_ext_size(port_resp, ret);
- if (result_size < 0) {
- goto error;
- }
- hp = HAlloc(c_p, result_size);
- hp_end = hp + result_size;
- endp = port_resp;
- res = erts_decode_ext(&hp, &MSO(c_p), &endp);
- if (res == THE_NON_VALUE) {
- goto error;
- }
- HRelease(c_p, hp_end, hp);
- if (port_resp != port_result && !(ret_flags & DRIVER_CALL_KEEP_BUFFER)) {
- driver_free(port_resp);
- }
- if (bytes != &port_input[0])
- erts_free(ERTS_ALC_T_PORT_CALL_BUF, bytes);
- if (p)
- erts_port_release(p);
-#ifdef ERTS_SMP
- ERTS_SMP_BIF_CHK_PENDING_EXIT(c_p, ERTS_PROC_LOCK_MAIN);
-#else
- ERTS_BIF_CHK_EXITED(c_p);
+#ifdef DEBUG
+ ref = NIL;
#endif
- if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(c_p, am_in);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(c_p, am_active);
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
+
+
+ switch (erts_port_exit(BIF_P, 0, prt, prt->common.id, am_normal, &ref)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DROPPED:
+ BIF_RET(am_badarg);
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(ref));
+ BIF_RET(ref);
+ case ERTS_PORT_OP_DONE:
+ BIF_RET(am_true);
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_exit() result");
+ BIF_RET(am_internal_error);
}
-
- return res;
}
-
-BIF_RETTYPE port_control_3(BIF_ALIST_3)
-{
- Port* p;
- Uint op;
- Eterm res = THE_NON_VALUE;
-
- /* Virtual schedule out calling process before lock wait */
- if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(BIF_P, am_out);
- }
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(BIF_P, am_inactive);
- }
+/*
+ * erts_internal:port_connect/2 is used by the
+ * erlang:port_connect/2 BIF.
+ */
+BIF_RETTYPE erts_internal_port_connect_2(BIF_ALIST_2)
+{
+ Eterm ref;
+ Port* prt;
- p = id_or_name2port(BIF_P, BIF_ARG_1);
- if (!p) {
- /* Schedule the process before exiting */
- if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(BIF_P, am_in);
- }
-
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(BIF_P, am_active);
- }
-
- BIF_ERROR(BIF_P, BADARG);
- }
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
- /* Trace the port for scheduling in */
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(p, am_in, am_control);
- }
-
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) {
- profile_runnable_port(p, am_active);
- }
+#ifdef DEBUG
+ ref = NIL;
+#endif
- if (term_to_Uint(BIF_ARG_2, &op))
- res = erts_port_control(BIF_P, p, op, BIF_ARG_3);
-
- /* Trace the port for scheduling out */
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports_where(p, am_out, am_control);
+ switch (erts_port_connect(BIF_P, 0, prt, prt->common.id, BIF_ARG_2, &ref)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DROPPED:
+ BIF_RET(am_badarg);
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(ref));
+ BIF_RET(ref);
+ break;
+ case ERTS_PORT_OP_DONE:
+ BIF_RET(am_true);
+ break;
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_connect() result");
+ BIF_RET(am_internal_error);
}
+}
- if (erts_system_profile_flags.runnable_ports && !erts_port_is_scheduled(p)) {
- profile_runnable_port(p, am_inactive);
- }
+BIF_RETTYPE erts_internal_port_info_1(BIF_ALIST_1)
+{
+ Eterm retval;
+ Port* prt;
- erts_port_release(p);
-#ifdef ERTS_SMP
- ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P, ERTS_PROC_LOCK_MAIN);
-#else
- ERTS_BIF_CHK_EXITED(BIF_P);
-#endif
-
- if (IS_TRACED_FL(BIF_P, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(BIF_P, am_in);
+ if (is_internal_port(BIF_ARG_1) || is_atom(BIF_ARG_1)) {
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_undefined);
}
-
- if (erts_system_profile_flags.runnable_procs && erts_system_profile_flags.exclusive) {
- profile_runnable_proc(BIF_P, am_active);
+ else if (is_external_port(BIF_ARG_1)) {
+ if (external_port_dist_entry(BIF_ARG_1) == erts_this_dist_entry)
+ BIF_RET(am_undefined);
+ else
+ BIF_RET(am_badarg);
}
-
- if (is_non_value(res)) {
- BIF_ERROR(BIF_P, BADARG);
+ else {
+ BIF_RET(am_badarg);
+ }
+
+ switch (erts_port_info(BIF_P, prt, THE_NON_VALUE, &retval)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ BIF_RET(am_badarg);
+ case ERTS_PORT_OP_DROPPED:
+ BIF_RET(am_undefined);
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(retval));
+ BIF_RET(retval);
+ case ERTS_PORT_OP_DONE:
+ ASSERT(is_not_internal_ref(retval));
+ BIF_RET(retval);
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_info() result");
+ BIF_RET(am_internal_error);
}
- BIF_RET(res);
}
-BIF_RETTYPE port_close_1(BIF_ALIST_1)
-{
- Port* p;
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- p = id_or_name2port(NULL, BIF_ARG_1);
- if (!p) {
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- BIF_ERROR(BIF_P, BADARG);
- }
- erts_do_exit_port(p, p->connected, am_normal);
- /* if !ERTS_SMP: since we terminate port with reason normal
- we SHOULD never get an exit signal ourselves
- */
- erts_port_release(p);
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- BIF_RET(am_true);
-}
-BIF_RETTYPE port_connect_2(BIF_ALIST_2)
+BIF_RETTYPE erts_internal_port_info_2(BIF_ALIST_2)
{
+ Eterm retval;
Port* prt;
- Process* rp;
- Eterm pid = BIF_ARG_2;
- if (is_not_internal_pid(pid)) {
- error:
- BIF_ERROR(BIF_P, BADARG);
+ if (is_internal_port(BIF_ARG_1) || is_atom(BIF_ARG_1)) {
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_undefined);
}
- prt = id_or_name2port(BIF_P, BIF_ARG_1);
- if (!prt) {
- goto error;
+ else if (is_external_port(BIF_ARG_1)) {
+ if (external_port_dist_entry(BIF_ARG_1) == erts_this_dist_entry)
+ BIF_RET(am_undefined);
+ else
+ BIF_RET(am_badarg);
}
-
- rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
- pid, ERTS_PROC_LOCK_LINK);
- if (!rp) {
- erts_smp_port_unlock(prt);
- ERTS_SMP_ASSERT_IS_NOT_EXITING(BIF_P);
- goto error;
- }
-
- erts_add_link(&(rp->nlinks), LINK_PID, prt->id);
- erts_add_link(&(prt->nlinks), LINK_PID, pid);
-
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
-
- prt->connected = pid; /* internal pid */
- erts_smp_port_unlock(prt);
-#ifdef USE_VM_PROBES
- if (DTRACE_ENABLED(port_connect)) {
- DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE);
- DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE);
- DTRACE_CHARBUF(newprocess_str, DTRACE_TERM_BUF_SIZE);
-
- dtrace_pid_str(prt->connected, process_str);
- erts_snprintf(port_str, sizeof(port_str), "%T", prt->id);
- dtrace_proc_str(rp, newprocess_str);
- DTRACE4(port_connect, process_str, port_str, prt->name, newprocess_str);
+ else {
+ BIF_RET(am_badarg);
+ }
+
+ switch (erts_port_info(BIF_P, prt, BIF_ARG_2, &retval)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ BIF_RET(am_badarg);
+ case ERTS_PORT_OP_DROPPED:
+ BIF_RET(am_undefined);
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(retval));
+ BIF_RET(retval);
+ case ERTS_PORT_OP_DONE:
+ ASSERT(is_not_internal_ref(retval));
+ BIF_RET(retval);
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_info() result");
+ BIF_RET(am_internal_error);
}
-#endif
- BIF_RET(am_true);
}
-BIF_RETTYPE port_set_data_2(BIF_ALIST_2)
+
+BIF_RETTYPE erts_internal_port_set_data_2(BIF_ALIST_2)
{
+ Eterm ref;
Port* prt;
- Eterm portid = BIF_ARG_1;
- Eterm data = BIF_ARG_2;
- prt = id_or_name2port(BIF_P, portid);
- if (!prt) {
- BIF_ERROR(BIF_P, BADARG);
- }
- if (prt->bp != NULL) {
- free_message_buffer(prt->bp);
- prt->bp = NULL;
- }
- if (IS_CONST(data)) {
- prt->data = data;
- } else {
- Uint size;
- ErlHeapFragment* bp;
- Eterm* hp;
-
- size = size_object(data);
- prt->bp = bp = new_message_buffer(size);
- hp = bp->mem;
- prt->data = copy_struct(data, size, &hp, &bp->off_heap);
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
+
+ switch (erts_port_set_data(BIF_P, prt, BIF_ARG_2, &ref)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DROPPED:
+ BIF_RET(am_badarg);
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(ref));
+ BIF_RET(ref);
+ case ERTS_PORT_OP_DONE:
+ BIF_RET(am_true);
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_set_data() result");
+ BIF_RET(am_internal_error);
}
- erts_smp_port_unlock(prt);
- BIF_RET(am_true);
}
-BIF_RETTYPE port_get_data_1(BIF_ALIST_1)
+BIF_RETTYPE erts_internal_port_get_data_1(BIF_ALIST_1)
{
- BIF_RETTYPE res;
+ Eterm retval;
Port* prt;
- Eterm portid = BIF_ARG_1;
- prt = id_or_name2port(BIF_P, portid);
- if (!prt) {
- BIF_ERROR(BIF_P, BADARG);
- }
- if (prt->bp == NULL) { /* MUST be CONST! */
- res = prt->data;
- } else {
- Eterm* hp = HAlloc(BIF_P, prt->bp->used_size);
- res = copy_struct(prt->data, prt->bp->used_size, &hp, &MSO(BIF_P));
+ prt = lookup_port(BIF_P, BIF_ARG_1);
+ if (!prt)
+ BIF_RET(am_badarg);
+
+ switch (erts_port_get_data(BIF_P, prt, &retval)) {
+ case ERTS_PORT_OP_CALLER_EXIT:
+ case ERTS_PORT_OP_BADARG:
+ case ERTS_PORT_OP_DROPPED:
+ BIF_RET(am_badarg);
+ case ERTS_PORT_OP_SCHEDULED:
+ ASSERT(is_internal_ref(retval));
+ BIF_RET(retval);
+ case ERTS_PORT_OP_DONE:
+ ASSERT(is_not_internal_ref(retval));
+ BIF_RET(retval);
+ default:
+ ERTS_INTERNAL_ERROR("Unexpected erts_port_get_data() result");
+ BIF_RET(am_internal_error);
}
- erts_smp_port_unlock(prt);
- BIF_RET(res);
}
/*
@@ -625,11 +485,10 @@ BIF_RETTYPE port_get_data_1(BIF_ALIST_1)
* either BADARG or SYSTEM_LIMIT).
*/
-static int
-open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
+static Port *
+open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump)
{
-#define OPEN_PORT_ERROR(VAL) do { port_num = (VAL); goto do_return; } while (0)
- int i, port_num;
+ int i;
Eterm option;
Uint arity;
Eterm* tp;
@@ -637,11 +496,11 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
erts_driver_t* driver;
char* name_buf = NULL;
SysDriverOpts opts;
- int binary_io;
- int soft_eof;
Sint linebuf;
Eterm edir = NIL;
byte dir[MAXPATHLEN];
+ erts_aint32_t sflgs = 0;
+ Port *port;
/* These are the defaults */
opts.packet_bytes = 0;
@@ -655,8 +514,7 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
opts.overlapped_io = 0;
opts.spawn_type = ERTS_SPAWN_ANY;
opts.argv = NULL;
- binary_io = 0;
- soft_eof = 0;
+ opts.parallelism = erts_port_parallelism;
linebuf = 0;
*err_nump = 0;
@@ -734,6 +592,13 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
}
} else if (option == am_cd) {
edir = *tp;
+ } else if (option == am_parallelism) {
+ if (*tp == am_true)
+ opts.parallelism = 1;
+ else if (*tp == am_false)
+ opts.parallelism = 0;
+ else
+ goto badarg;
} else {
goto badarg;
}
@@ -748,13 +613,13 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
} else if (*nargs == am_nouse_stdio) {
opts.use_stdio = 0;
} else if (*nargs == am_binary) {
- binary_io = 1;
+ sflgs |= ERTS_PORT_SFLG_BINARY_IO;
} else if (*nargs == am_in) {
opts.read_write |= DO_READ;
} else if (*nargs == am_out) {
opts.read_write |= DO_WRITE;
} else if (*nargs == am_eof) {
- soft_eof = 1;
+ sflgs |= ERTS_PORT_SFLG_SOFT_EOF;
} else if (*nargs == am_hide) {
opts.hide_window = 1;
} else if (*nargs == am_exit_status) {
@@ -902,9 +767,9 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
heap[2] = make_small(0);
heap[3] = NIL;
iolist = make_list(heap);
- r = io_list_to_buf(iolist, (char*) dir, MAXPATHLEN);
+ r = erts_iolist_to_buf(iolist, (char*) dir, MAXPATHLEN);
UnUseTmpHeap(4,p);
- if (r < 0) {
+ if (ERTS_IOLIST_TO_BUF_FAILED(r)) {
goto badarg;
}
opts.wd = (char *) dir;
@@ -926,44 +791,40 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
- port_num = erts_open_driver(driver, p->id, name_buf, &opts, err_nump);
+ port = erts_open_driver(driver, p->common.id, name_buf, &opts, err_typep, err_nump);
#ifdef USE_VM_PROBES
- if (port_num >= 0 && DTRACE_ENABLED(port_open)) {
+ if (port && DTRACE_ENABLED(port_open)) {
DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE);
DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE);
dtrace_proc_str(p, process_str);
- erts_snprintf(port_str, sizeof(port_str), "%T", erts_port[port_num].id);
+ erts_snprintf(port_str, sizeof(port_str), "%T", port->common.id);
DTRACE3(port_open, process_str, name_buf, port_str);
}
#endif
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
- if (port_num < 0) {
- DEBUGF(("open_driver returned %d(%d)\n", port_num, *err_nump));
+ if (!port) {
+ DEBUGF(("open_driver returned (%d:%d)\n",
+ err_typep ? *err_typep : 4711,
+ err_nump ? *err_nump : 4711));
if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
trace_virtual_sched(p, am_in);
}
- OPEN_PORT_ERROR(port_num);
+ goto do_return;
}
if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
trace_virtual_sched(p, am_in);
}
- if (binary_io) {
- erts_port_status_bor_set(&erts_port[port_num],
- ERTS_PORT_SFLG_BINARY_IO);
- }
- if (soft_eof) {
- erts_port_status_bor_set(&erts_port[port_num],
- ERTS_PORT_SFLG_SOFT_EOF);
- }
- if (linebuf && erts_port[port_num].linebuf == NULL){
- erts_port[port_num].linebuf = allocate_linebuf(linebuf);
- erts_port_status_bor_set(&erts_port[port_num],
- ERTS_PORT_SFLG_LINEBUF_IO);
+ if (linebuf && port->linebuf == NULL){
+ port->linebuf = allocate_linebuf(linebuf);
+ sflgs |= ERTS_PORT_SFLG_LINEBUF_IO;
}
+
+ if (sflgs)
+ erts_atomic32_read_bor_relb(&port->state, sflgs);
do_return:
if (name_buf)
@@ -974,13 +835,15 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_nump)
if (opts.wd && opts.wd != ((char *)dir)) {
erts_free(ERTS_ALC_T_TMP, (void *) opts.wd);
}
- return port_num;
+ return port;
badarg:
- *err_nump = BADARG;
- OPEN_PORT_ERROR(-3);
+ if (err_typep)
+ *err_typep = -3;
+ if (err_nump)
+ *err_nump = BADARG;
+ port = NULL;
goto do_return;
-#undef OPEN_PORT_ERROR
}
/* Arguments can be given i unicode and as raw binaries, convert filename is used to convert */
diff --git a/erts/emulator/beam/erl_bif_re.c b/erts/emulator/beam/erl_bif_re.c
index 6b843d2e08..88f980d19f 100644
--- a/erts/emulator/beam/erl_bif_re.c
+++ b/erts/emulator/beam/erl_bif_re.c
@@ -71,14 +71,9 @@ void erts_init_bif_re(void)
erts_pcre_stack_free = &erts_erts_pcre_stack_free;
default_table = NULL; /* ISO8859-1 default, forced into pcre */
max_loop_limit = CONTEXT_REDS * LOOP_FACTOR;
-
- sys_memset((void *) &re_exec_trap_export, 0, sizeof(Export));
- re_exec_trap_export.address = &re_exec_trap_export.code[3];
- re_exec_trap_export.code[0] = am_erlang;
- re_exec_trap_export.code[1] = am_re_run_trap;
- re_exec_trap_export.code[2] = 3;
- re_exec_trap_export.code[3] = (BeamInstr) em_apply_bif;
- re_exec_trap_export.code[4] = (BeamInstr) &re_exec_trap;
+
+ erts_init_trap_export(&re_exec_trap_export, am_erlang, am_re_run_trap, 3,
+ &re_exec_trap);
grun_trap_exportp = erts_export_put(am_re,am_grun,3);
urun_trap_exportp = erts_export_put(am_re,am_urun,3);
@@ -418,7 +413,7 @@ build_compile_result(Process *p, Eterm error_tag, pcre *result, int errcode, con
static BIF_RETTYPE
re_compile(Process* p, Eterm arg1, Eterm arg2)
{
- Uint slen;
+ ErlDrvSizeT slen;
char *expr;
pcre *result;
int errcode = 0;
@@ -449,7 +444,7 @@ re_compile(Process* p, Eterm arg1, Eterm arg2)
BIF_ERROR(p,BADARG);
}
expr = erts_alloc(ERTS_ALC_T_RE_TMP_BUF, slen + 1);
- if (io_list_to_buf(arg1, expr, slen) != 0) {
+ if (erts_iolist_to_buf(arg1, expr, slen) != 0) {
erts_free(ERTS_ALC_T_RE_TMP_BUF, expr);
BIF_ERROR(p,BADARG);
}
@@ -802,7 +797,7 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code)
memcpy(tmpb,ap->name,ap->len);
tmpb[ap->len] = '\0';
} else {
- Uint slen;
+ ErlDrvSizeT slen;
if (erts_iolist_size(val, &slen)) {
goto error;
}
@@ -814,7 +809,7 @@ build_capture(Eterm capture_spec[CAPSPEC_SIZE], const pcre *code)
(tmpbsiz = slen + 1));
}
}
- if (io_list_to_buf(val, tmpb, slen) != 0) {
+ if (erts_iolist_to_buf(val, tmpb, slen) != 0) {
goto error;
}
tmpb[slen] = '\0';
@@ -858,7 +853,7 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3)
const pcre *code_tmp;
RestartContext restart;
byte *temp_alloc = NULL;
- Uint slength;
+ ErlDrvSizeT slength;
int startoffset = 0;
int options = 0, comp_options = 0;
int ovsize;
@@ -882,7 +877,7 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3)
if (is_not_tuple(arg2) || (arityval(*tuple_val(arg2)) != 4)) {
if (is_binary(arg2) || is_list(arg2) || is_nil(arg2)) {
/* Compile from textual RE */
- Uint slen;
+ ErlDrvSizeT slen;
char *expr;
pcre *result;
int errcode = 0;
@@ -901,7 +896,7 @@ re_run(Process *p, Eterm arg1, Eterm arg2, Eterm arg3)
}
expr = erts_alloc(ERTS_ALC_T_RE_TMP_BUF, slen + 1);
- if (io_list_to_buf(arg2, expr, slen) != 0) {
+ if (erts_iolist_to_buf(arg2, expr, slen) != 0) {
erts_free(ERTS_ALC_T_RE_TMP_BUF, expr);
BIF_ERROR(p,BADARG);
}
@@ -1044,7 +1039,7 @@ handle_iolist:
}
restart.subject = erts_alloc(ERTS_ALC_T_RE_SUBJECT, slength);
- if (io_list_to_buf(arg1, restart.subject, slength) != 0) {
+ if (erts_iolist_to_buf(arg1, restart.subject, slength) != 0) {
erts_free(ERTS_ALC_T_RE_SUBJECT, restart.ovector);
erts_free(ERTS_ALC_T_RE_SUBJECT, restart.code);
erts_free(ERTS_ALC_T_RE_SUBJECT, restart.subject);
diff --git a/erts/emulator/beam/erl_bif_timer.c b/erts/emulator/beam/erl_bif_timer.c
index d806be0704..d67695e533 100644
--- a/erts/emulator/beam/erl_bif_timer.c
+++ b/erts/emulator/beam/erl_bif_timer.c
@@ -265,10 +265,10 @@ link_proc(Process *p, ErtsBifTimer* btm)
{
btm->receiver.proc.ess = p;
btm->receiver.proc.prev = NULL;
- btm->receiver.proc.next = p->bif_timers;
- if (p->bif_timers)
- p->bif_timers->receiver.proc.prev = btm;
- p->bif_timers = btm;
+ btm->receiver.proc.next = p->u.bif_timers;
+ if (p->u.bif_timers)
+ p->u.bif_timers->receiver.proc.prev = btm;
+ p->u.bif_timers = btm;
}
static ERTS_INLINE void
@@ -277,7 +277,7 @@ unlink_proc(ErtsBifTimer* btm)
if (btm->receiver.proc.prev)
btm->receiver.proc.prev->receiver.proc.next = btm->receiver.proc.next;
else
- btm->receiver.proc.ess->bif_timers = btm->receiver.proc.next;
+ btm->receiver.proc.ess->u.bif_timers = btm->receiver.proc.next;
if (btm->receiver.proc.next)
btm->receiver.proc.next->receiver.proc.prev = btm->receiver.proc.prev;
}
@@ -324,10 +324,9 @@ bif_timer_timeout(ErtsBifTimer* btm)
ASSERT(!erts_get_current_process());
if (btm->flags & BTM_FLG_BYNAME)
- rp = erts_whereis_process(NULL,0,btm->receiver.name,0,ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_whereis_process(NULL, 0, btm->receiver.name, 0, 0);
else {
rp = btm->receiver.proc.ess;
- erts_smp_proc_inc_refc(rp);
unlink_proc(btm);
}
@@ -379,7 +378,6 @@ bif_timer_timeout(ErtsBifTimer* btm)
#endif
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
}
@@ -615,7 +613,7 @@ erts_print_bif_timer_info(int to, void *to_arg)
for (btm = bif_timer_tab[i]; btm; btm = btm->tab.next) {
Eterm receiver = (btm->flags & BTM_FLG_BYNAME
? btm->receiver.name
- : btm->receiver.proc.ess->id);
+ : btm->receiver.proc.ess->common.id);
erts_print(to, to_arg, "=timer:%T\n", receiver);
erts_print(to, to_arg, "Message: %T\n", btm->message);
erts_print(to, to_arg, "Time left: %u ms\n",
@@ -639,7 +637,7 @@ erts_cancel_bif_timers(Process *p, ErtsProcLocks plocks)
erts_smp_proc_lock(p, plocks);
}
- btm = p->bif_timers;
+ btm = p->u.bif_timers;
while (btm) {
ErtsBifTimer *tmp_btm;
ASSERT(!(btm->flags & BTM_FLG_CANCELED));
@@ -649,7 +647,7 @@ erts_cancel_bif_timers(Process *p, ErtsProcLocks plocks)
erts_cancel_timer(&tmp_btm->tm);
}
- p->bif_timers = NULL;
+ p->u.bif_timers = NULL;
erts_smp_btm_rwunlock();
}
@@ -698,7 +696,7 @@ erts_bif_timer_foreach(void (*func)(Eterm, Eterm, ErlHeapFragment *, void *),
for (btm = bif_timer_tab[i]; btm; btm = btm->tab.next) {
(*func)((btm->flags & BTM_FLG_BYNAME
? btm->receiver.name
- : btm->receiver.proc.ess->id),
+ : btm->receiver.proc.ess->common.id),
btm->message,
btm->bp,
arg);
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c
index 80f774523c..99a4394666 100644
--- a/erts/emulator/beam/erl_bif_trace.c
+++ b/erts/emulator/beam/erl_bif_trace.c
@@ -42,14 +42,33 @@
#define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
const struct trace_pattern_flags erts_trace_pattern_flags_off = {0, 0, 0, 0, 0};
+
+/*
+ * The following variables are protected by code write permission.
+ */
static int erts_default_trace_pattern_is_on;
static Binary *erts_default_match_spec;
static Binary *erts_default_meta_match_spec;
static struct trace_pattern_flags erts_default_trace_pattern_flags;
static Eterm erts_default_meta_tracer_pid;
+static struct { /* Protected by code write permission */
+ int current;
+ int install;
+ int local;
+ BpFunctions f; /* Local functions */
+ BpFunctions e; /* Export entries */
+#ifdef ERTS_SMP
+ Process* stager;
+ ErtsThrPrgrLaterOp lop;
+#endif
+} finish_bp;
+
static Eterm
trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist);
+#ifdef ERTS_SMP
+static void smp_bp_finisher(void* arg);
+#endif
static BIF_RETTYPE
system_monitor(Process *p, Eterm monitor_pid, Eterm list);
@@ -60,12 +79,11 @@ static Eterm trace_info_pid(Process* p, Eterm pid_spec, Eterm key);
static Eterm trace_info_func(Process* p, Eterm pid_spec, Eterm key);
static Eterm trace_info_on_load(Process* p, Eterm key);
-static int setup_func_trace(Export* ep, void* match_prog);
-static int reset_func_trace(Export* ep);
-static void reset_bif_trace(int bif_index);
-static void setup_bif_trace(int bif_index);
-static void set_trace_bif(int bif_index, void* match_prog);
-static void clear_trace_bif(int bif_index);
+static void reset_bif_trace(void);
+static void setup_bif_trace(void);
+static void install_exp_breakpoints(BpFunctions* f);
+static void uninstall_exp_breakpoints(BpFunctions* f);
+static void clean_export_entries(BpFunctions* f);
void
erts_bif_trace_init(void)
@@ -98,7 +116,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
{
DeclareTmpHeap(mfa,3,p); /* Not really heap here, but might be when setting pattern */
int i;
- int matches = 0;
+ int matches = -1;
int specified = 0;
enum erts_break_op on;
Binary* match_prog_set;
@@ -106,10 +124,12 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
struct trace_pattern_flags flags = erts_trace_pattern_flags_off;
int is_global;
Process *meta_tracer_proc = p;
- Eterm meta_tracer_pid = p->id;
+ Eterm meta_tracer_pid = p->common.id;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ if (!erts_try_seize_code_write_permission(p)) {
+ ERTS_BIF_YIELD3(bif_export[BIF_trace_pattern_3], p, MFA, Pattern, flaglist);
+ }
+ finish_bp.current = -1;
UseTmpHeap(3,p);
/*
@@ -151,14 +171,12 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
}
} else if (is_internal_port(meta_tracer_pid)) {
Port *meta_tracer_port;
- meta_tracer_proc = NULL;
- if (internal_port_index(meta_tracer_pid) >= erts_max_ports)
- goto error;
- meta_tracer_port =
- &erts_port[internal_port_index(meta_tracer_pid)];
- if (INVALID_TRACER_PORT(meta_tracer_port, meta_tracer_pid)) {
+ meta_tracer_proc = NULL;
+ meta_tracer_port = (erts_port_lookup(
+ meta_tracer_pid,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP));
+ if (!meta_tracer_port)
goto error;
- }
} else {
goto error;
}
@@ -234,14 +252,13 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
MatchSetRef(erts_default_meta_match_spec);
erts_default_meta_tracer_pid = meta_tracer_pid;
if (meta_tracer_proc) {
- meta_tracer_proc->trace_flags |= F_TRACER;
+ ERTS_TRACE_FLAGS(meta_tracer_proc) |= F_TRACER;
}
} else if (! flags.breakpoint) {
MatchSetUnref(erts_default_meta_match_spec);
erts_default_meta_match_spec = NULL;
erts_default_meta_tracer_pid = NIL;
}
- MatchSetUnref(match_prog_set);
if (erts_default_trace_pattern_flags.breakpoint &&
flags.breakpoint) {
/* Breakpoint trace -> breakpoint trace */
@@ -297,8 +314,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
erts_default_trace_pattern_is_on = !!flags.breakpoint;
}
}
-
- goto done;
+ matches = 0;
} else if (is_tuple(MFA)) {
Eterm *tp = tuple_val(MFA);
if (tp[0] != make_arityval(3)) {
@@ -322,36 +338,64 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
if (is_small(mfa[2])) {
mfa[2] = signed_val(mfa[2]);
}
- } else {
- goto error;
- }
- if (meta_tracer_proc) {
- meta_tracer_proc->trace_flags |= F_TRACER;
- }
+ if (meta_tracer_proc) {
+ ERTS_TRACE_FLAGS(meta_tracer_proc) |= F_TRACER;
+ }
+ matches = erts_set_trace_pattern(p, mfa, specified,
+ match_prog_set, match_prog_set,
+ on, flags, meta_tracer_pid, 0);
+ }
- matches = erts_set_trace_pattern(mfa, specified,
- match_prog_set, match_prog_set,
- on, flags, meta_tracer_pid);
+ error:
MatchSetUnref(match_prog_set);
-
- done:
UnUseTmpHeap(3,p);
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
- return make_small(matches);
+#ifdef ERTS_SMP
+ if (finish_bp.current >= 0) {
+ ASSERT(matches >= 0);
+ ASSERT(finish_bp.stager == NULL);
+ finish_bp.stager = p;
+ erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop);
+ erts_smp_proc_inc_refc(p);
+ erts_suspend(p, ERTS_PROC_LOCK_MAIN, NULL);
+ ERTS_BIF_YIELD_RETURN(p, make_small(matches));
+ }
+#endif
- error:
+ erts_release_code_write_permission();
- MatchSetUnref(match_prog_set);
+ if (matches >= 0) {
+ return make_small(matches);
+ }
+ else {
+ BIF_ERROR(p, BADARG);
+ }
+}
- UnUseTmpHeap(3,p);
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
- BIF_ERROR(p, BADARG);
+#ifdef ERTS_SMP
+static void smp_bp_finisher(void* null)
+{
+ if (erts_finish_breakpointing()) { /* Not done */
+ /* Arrange for being called again */
+ erts_schedule_thr_prgr_later_op(smp_bp_finisher, NULL, &finish_bp.lop);
+ }
+ else { /* Done */
+ Process* p = finish_bp.stager;
+#ifdef DEBUG
+ finish_bp.stager = NULL;
+#endif
+ erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
+ if (!ERTS_PROC_IS_EXITING(p)) {
+ erts_resume(p, ERTS_PROC_LOCK_STATUS);
+ }
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_proc_dec_refc(p);
+ erts_release_code_write_permission();
+ }
}
+#endif /* ERTS_SMP */
void
erts_get_default_trace_pattern(int *trace_pattern_is_on,
@@ -360,6 +404,8 @@ erts_get_default_trace_pattern(int *trace_pattern_is_on,
struct trace_pattern_flags *trace_pattern_flags,
Eterm *meta_tracer_pid)
{
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission() ||
+ erts_smp_thr_progress_is_blocking());
if (trace_pattern_is_on)
*trace_pattern_is_on = erts_default_trace_pattern_is_on;
if (match_spec)
@@ -372,7 +418,12 @@ erts_get_default_trace_pattern(int *trace_pattern_is_on,
*meta_tracer_pid = erts_default_meta_tracer_pid;
}
-
+int erts_is_default_trace_enabled(void)
+{
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission() ||
+ erts_smp_thr_progress_is_blocking());
+ return erts_default_trace_pattern_is_on;
+}
Uint
erts_trace_flag2bit(Eterm flag)
@@ -466,27 +517,31 @@ Eterm trace_3(BIF_ALIST_3)
BIF_ERROR(p, BADARG);
}
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD3(bif_export[BIF_trace_3], BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+ }
+
if (is_nil(tracer) || is_internal_pid(tracer)) {
Process *tracer_proc = erts_pid2proc(p,
ERTS_PROC_LOCK_MAIN,
- is_nil(tracer) ? p->id : tracer,
+ is_nil(tracer) ? p->common.id : tracer,
ERTS_PROC_LOCKS_ALL);
if (!tracer_proc)
goto error;
- tracer_proc->trace_flags |= F_TRACER;
+ ERTS_TRACE_FLAGS(tracer_proc) |= F_TRACER;
erts_smp_proc_unlock(tracer_proc,
(tracer_proc == p
? ERTS_PROC_LOCKS_ALL_MINOR
: ERTS_PROC_LOCKS_ALL));
} else if (is_internal_port(tracer)) {
- Port *tracer_port = erts_id2port(tracer, p, ERTS_PROC_LOCK_MAIN);
- if (!erts_is_valid_tracer_port(tracer)) {
- if (tracer_port)
- erts_smp_port_unlock(tracer_port);
+ Port *tracer_port = erts_id2port_sflgs(tracer,
+ p,
+ ERTS_PROC_LOCK_MAIN,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (!tracer_port)
goto error;
- }
- tracer_port->trace_flags |= F_TRACER;
- erts_smp_port_unlock(tracer_port);
+ ERTS_TRACE_FLAGS(tracer_port) |= F_TRACER;
+ erts_port_release(tracer_port);
} else
goto error;
@@ -497,7 +552,7 @@ Eterm trace_3(BIF_ALIST_3)
case am_true:
on = 1;
if (is_nil(tracer))
- tracer = p->id;
+ tracer = p->common.id;
break;
default:
goto error;
@@ -519,26 +574,29 @@ Eterm trace_3(BIF_ALIST_3)
if (pid_spec == tracer)
goto error;
- tracee_port = erts_id2port(pid_spec, p, ERTS_PROC_LOCK_MAIN);
+ tracee_port = erts_id2port_sflgs(pid_spec,
+ p,
+ ERTS_PROC_LOCK_MAIN,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP);
if (!tracee_port)
goto error;
if (tracer != NIL && port_already_traced(p, tracee_port, tracer)) {
- erts_smp_port_unlock(tracee_port);
+ erts_port_release(tracee_port);
goto already_traced;
}
if (on)
- tracee_port->trace_flags |= mask;
+ ERTS_TRACE_FLAGS(tracee_port) |= mask;
else
- tracee_port->trace_flags &= ~mask;
+ ERTS_TRACE_FLAGS(tracee_port) &= ~mask;
- if (!tracee_port->trace_flags)
- tracee_port->tracer_proc = NIL;
+ if (!ERTS_TRACE_FLAGS(tracee_port))
+ ERTS_TRACER_PROC(tracee_port) = NIL;
else if (tracer != NIL)
- tracee_port->tracer_proc = tracer;
+ ERTS_TRACER_PROC(tracee_port) = tracer;
- erts_smp_port_unlock(tracee_port);
+ erts_port_release(tracee_port);
matches = 1;
} else if (is_pid(pid_spec)) {
@@ -570,14 +628,14 @@ Eterm trace_3(BIF_ALIST_3)
}
if (on)
- tracee_p->trace_flags |= mask;
+ ERTS_TRACE_FLAGS(tracee_p) |= mask;
else
- tracee_p->trace_flags &= ~mask;
+ ERTS_TRACE_FLAGS(tracee_p) &= ~mask;
- if ((tracee_p->trace_flags & TRACEE_FLAGS) == 0)
- tracee_p->tracer_proc = NIL;
+ if ((ERTS_TRACE_FLAGS(tracee_p) & TRACEE_FLAGS) == 0)
+ ERTS_TRACER_PROC(tracee_p) = NIL;
else if (tracer != NIL)
- tracee_p->tracer_proc = tracer;
+ ERTS_TRACER_PROC(tracee_p) = tracer;
erts_smp_proc_unlock(tracee_p,
(tracee_p == p
@@ -651,48 +709,56 @@ Eterm trace_3(BIF_ALIST_3)
ok = 1;
if (procs || mods) {
+ int max = erts_ptab_max(&erts_proc);
/* tracing of processes */
- for (i = 0; i < erts_max_processes; i++) {
- Process* tracee_p = process_tab[i];
-
+ for (i = 0; i < max; i++) {
+ Process* tracee_p = erts_pix2proc(i);
if (! tracee_p)
continue;
if (tracer != NIL) {
- if (tracee_p->id == tracer)
+ if (tracee_p->common.id == tracer)
continue;
if (already_traced(NULL, tracee_p, tracer))
continue;
}
if (on) {
- tracee_p->trace_flags |= mask;
+ ERTS_TRACE_FLAGS(tracee_p) |= mask;
} else {
- tracee_p->trace_flags &= ~mask;
+ ERTS_TRACE_FLAGS(tracee_p) &= ~mask;
}
- if(!(tracee_p->trace_flags & TRACEE_FLAGS)) {
- tracee_p->tracer_proc = NIL;
+ if(!(ERTS_TRACE_FLAGS(tracee_p) & TRACEE_FLAGS)) {
+ ERTS_TRACER_PROC(tracee_p) = NIL;
} else if (tracer != NIL) {
- tracee_p->tracer_proc = tracer;
+ ERTS_TRACER_PROC(tracee_p) = tracer;
}
matches++;
}
}
if (ports || mods) {
+ int max = erts_ptab_max(&erts_port);
/* tracing of ports */
- for (i = 0; i < erts_max_ports; i++) {
- Port *tracee_port = &erts_port[i];
- if (tracee_port->status & ERTS_PORT_SFLGS_DEAD) continue;
+ for (i = 0; i < max; i++) {
+ erts_aint32_t state;
+ Port *tracee_port = erts_pix2port(i);
+ if (!tracee_port)
+ continue;
+ state = erts_atomic32_read_nob(&tracee_port->state);
+ if (state & ERTS_PORT_SFLGS_DEAD)
+ continue;
if (tracer != NIL) {
- if (tracee_port->id == tracer) continue;
- if (port_already_traced(NULL, tracee_port, tracer)) continue;
+ if (tracee_port->common.id == tracer)
+ continue;
+ if (port_already_traced(NULL, tracee_port, tracer))
+ continue;
}
- if (on) tracee_port->trace_flags |= mask;
- else tracee_port->trace_flags &= ~mask;
+ if (on) ERTS_TRACE_FLAGS(tracee_port) |= mask;
+ else ERTS_TRACE_FLAGS(tracee_port) &= ~mask;
- if (!(tracee_port->trace_flags & TRACEE_FLAGS)) {
- tracee_port->tracer_proc = NIL;
+ if (!(ERTS_TRACE_FLAGS(tracee_port) & TRACEE_FLAGS)) {
+ ERTS_TRACER_PROC(tracee_port) = NIL;
} else if (tracer != NIL) {
- tracee_port->tracer_proc = tracer;
+ ERTS_TRACER_PROC(tracee_port) = tracer;
}
/* matches are not counted for ports since it would violate compatibility */
/* This could be a reason to modify this function or make a new one. */
@@ -730,6 +796,7 @@ Eterm trace_3(BIF_ALIST_3)
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
}
#endif
+ erts_release_code_write_permission();
BIF_RET(make_small(matches));
@@ -745,6 +812,7 @@ Eterm trace_3(BIF_ALIST_3)
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
}
#endif
+ erts_release_code_write_permission();
BIF_ERROR(p, BADARG);
}
@@ -759,21 +827,20 @@ static int port_already_traced(Process *c_p, Port *tracee_port, Eterm tracer)
* * main lock is held on c_p
* * all locks are held on port tracee_p
*/
- if ((tracee_port->trace_flags & TRACEE_FLAGS)
- && tracee_port->tracer_proc != tracer) {
+ if ((ERTS_TRACE_FLAGS(tracee_port) & TRACEE_FLAGS)
+ && ERTS_TRACER_PROC(tracee_port) != tracer) {
/* This tracee is already being traced, and not by the
* tracer to be */
- if (is_internal_port(tracee_port->tracer_proc)) {
- if (!erts_is_valid_tracer_port(tracee_port->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(tracee_port))) {
+ if (!erts_is_valid_tracer_port(ERTS_TRACER_PROC(tracee_port))) {
/* Current trace port now invalid
* - discard it and approve the new. */
goto remove_tracer;
} else
return 1;
}
- else if(is_internal_pid(tracee_port->tracer_proc)) {
- Process *tracer_p = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN,
- tracee_port->tracer_proc, 0);
+ else if(is_internal_pid(ERTS_TRACER_PROC(tracee_port))) {
+ Process *tracer_p = erts_proc_lookup(ERTS_TRACER_PROC(tracee_port));
if (!tracer_p) {
/* Current trace process now invalid
* - discard it and approve the new. */
@@ -783,8 +850,8 @@ static int port_already_traced(Process *c_p, Port *tracee_port, Eterm tracer)
}
else {
remove_tracer:
- tracee_port->trace_flags &= ~TRACEE_FLAGS;
- tracee_port->tracer_proc = NIL;
+ ERTS_TRACE_FLAGS(tracee_port) &= ~TRACEE_FLAGS;
+ ERTS_TRACER_PROC(tracee_port) = NIL;
}
}
return 0;
@@ -800,21 +867,22 @@ static int already_traced(Process *c_p, Process *tracee_p, Eterm tracer)
* * main lock is held on c_p
* * all locks multiple are held on tracee_p
*/
- if ((tracee_p->trace_flags & TRACEE_FLAGS)
- && tracee_p->tracer_proc != tracer) {
+ if ((ERTS_TRACE_FLAGS(tracee_p) & TRACEE_FLAGS)
+ && ERTS_TRACER_PROC(tracee_p) != tracer) {
/* This tracee is already being traced, and not by the
* tracer to be */
- if (is_internal_port(tracee_p->tracer_proc)) {
- if (!erts_is_valid_tracer_port(tracee_p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(tracee_p))) {
+ if (!erts_is_valid_tracer_port(ERTS_TRACER_PROC(tracee_p))) {
/* Current trace port now invalid
* - discard it and approve the new. */
goto remove_tracer;
} else
return 1;
}
- else if(is_internal_pid(tracee_p->tracer_proc)) {
- Process *tracer_p = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN,
- tracee_p->tracer_proc, 0);
+ else if(is_internal_pid(ERTS_TRACER_PROC(tracee_p))) {
+ Process *tracer_p;
+
+ tracer_p = erts_proc_lookup(ERTS_TRACER_PROC(tracee_p));
if (!tracer_p) {
/* Current trace process now invalid
* - discard it and approve the new. */
@@ -824,8 +892,8 @@ static int already_traced(Process *c_p, Process *tracee_p, Eterm tracer)
}
else {
remove_tracer:
- tracee_p->trace_flags &= ~TRACEE_FLAGS;
- tracee_p->tracer_proc = NIL;
+ ERTS_TRACE_FLAGS(tracee_p) &= ~TRACEE_FLAGS;
+ ERTS_TRACER_PROC(tracee_p) = NIL;
}
}
return 0;
@@ -841,6 +909,11 @@ Eterm trace_info_2(BIF_ALIST_2)
Eterm What = BIF_ARG_1;
Eterm Key = BIF_ARG_2;
Eterm res;
+
+ if (!erts_try_seize_code_write_permission(p)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_trace_info_2], p, What, Key);
+ }
+
if (What == am_on_load) {
res = trace_info_on_load(p, Key);
} else if (is_atom(What) || is_pid(What)) {
@@ -848,8 +921,10 @@ Eterm trace_info_2(BIF_ALIST_2)
} else if (is_tuple(What)) {
res = trace_info_func(p, What, Key);
} else {
+ erts_release_code_write_permission();
BIF_ERROR(p, BADARG);
}
+ erts_release_code_write_permission();
BIF_RET(res);
}
@@ -862,8 +937,7 @@ trace_info_pid(Process* p, Eterm pid_spec, Eterm key)
if (pid_spec == am_new) {
erts_get_default_tracing(&trace_flags, &tracer);
- } else if (is_internal_pid(pid_spec)
- && internal_pid_index(pid_spec) < erts_max_processes) {
+ } else if (is_internal_pid(pid_spec)) {
Process *tracee;
tracee = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN,
pid_spec, ERTS_PROC_LOCKS_ALL);
@@ -871,16 +945,16 @@ trace_info_pid(Process* p, Eterm pid_spec, Eterm key)
if (!tracee) {
return am_undefined;
} else {
- tracer = tracee->tracer_proc;
- trace_flags = tracee->trace_flags;
+ tracer = ERTS_TRACER_PROC(tracee);
+ trace_flags = ERTS_TRACE_FLAGS(tracee);
}
if (is_internal_pid(tracer)) {
- if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, tracer, 0)) {
+ if (!erts_proc_lookup(tracer)) {
reset_tracer:
- tracee->trace_flags &= ~TRACEE_FLAGS;
- trace_flags = tracee->trace_flags;
- tracer = tracee->tracer_proc = NIL;
+ ERTS_TRACE_FLAGS(tracee) &= ~TRACEE_FLAGS;
+ trace_flags = ERTS_TRACE_FLAGS(tracee);
+ tracer = ERTS_TRACER_PROC(tracee) = NIL;
}
}
else if (is_internal_port(tracer)) {
@@ -977,64 +1051,54 @@ static int function_is_traced(Process *p,
Binary **ms, /* out */
Binary **ms_meta, /* out */
Eterm *tracer_pid_meta, /* out */
- Sint *count, /* out */
+ Uint *count, /* out */
Eterm *call_time) /* out */
{
Export e;
Export* ep;
- int i;
- BeamInstr *code;
+ BeamInstr* pc;
/* First look for an export entry */
e.code[0] = mfa[0];
e.code[1] = mfa[1];
e.code[2] = mfa[2];
if ((ep = export_get(&e)) != NULL) {
- if (ep->address == ep->code+3 &&
- ep->code[3] != (BeamInstr) em_call_error_handler) {
- if (ep->code[3] == (BeamInstr) em_call_traced_function) {
- *ms = ep->match_prog_set;
+ pc = ep->code+3;
+ if (ep->addressv[erts_active_code_ix()] == pc &&
+ *pc != (BeamInstr) em_call_error_handler) {
+
+ int r = 0;
+
+ ASSERT(*pc == (BeamInstr) em_apply_bif ||
+ *pc == (BeamInstr) BeamOp(op_i_generic_breakpoint));
+
+ if (erts_is_trace_break(pc, ms, 0)) {
return FUNC_TRACE_GLOBAL_TRACE;
}
- if (ep->code[3] == (BeamInstr) em_apply_bif) {
- for (i = 0; i < BIF_SIZE; ++i) {
- if (bif_export[i] == ep) {
- int r = 0;
-
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_GLOBAL) {
- *ms = ep->match_prog_set;
- return FUNC_TRACE_GLOBAL_TRACE;
- } else {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_LOCAL) {
- r |= FUNC_TRACE_LOCAL_TRACE;
- *ms = ep->match_prog_set;
- }
- if (erts_is_mtrace_break(ep->code+3, ms_meta,
- tracer_pid_meta)) {
- r |= FUNC_TRACE_META_TRACE;
- }
- if (erts_is_time_break(p, ep->code+3, call_time)) {
- r |= FUNC_TRACE_TIME_TRACE;
- }
- }
- return r ? r : FUNC_TRACE_UNTRACED;
- }
- }
- erl_exit(1,"Impossible ghost bif encountered in trace_info.");
+
+ if (erts_is_trace_break(pc, ms, 1)) {
+ r |= FUNC_TRACE_LOCAL_TRACE;
+ }
+ if (erts_is_mtrace_break(pc, ms_meta, tracer_pid_meta)) {
+ r |= FUNC_TRACE_META_TRACE;
}
+ if (erts_is_time_break(p, pc, call_time)) {
+ r |= FUNC_TRACE_TIME_TRACE;
+ }
+ return r ? r : FUNC_TRACE_UNTRACED;
}
}
/* OK, now look for breakpoint tracing */
- if ((code = erts_find_local_func(mfa)) != NULL) {
+ if ((pc = erts_find_local_func(mfa)) != NULL) {
int r =
- (erts_is_trace_break(code, ms, NULL)
+ (erts_is_trace_break(pc, ms, 1)
? FUNC_TRACE_LOCAL_TRACE : 0)
- | (erts_is_mtrace_break(code, ms_meta, tracer_pid_meta)
+ | (erts_is_mtrace_break(pc, ms_meta, tracer_pid_meta)
? FUNC_TRACE_META_TRACE : 0)
- | (erts_is_count_break(code, count)
+ | (erts_is_count_break(pc, count)
? FUNC_TRACE_COUNT_TRACE : 0)
- | (erts_is_time_break(p, code, call_time)
+ | (erts_is_time_break(p, pc, call_time)
? FUNC_TRACE_TIME_TRACE : 0);
return r ? r : FUNC_TRACE_UNTRACED;
@@ -1049,7 +1113,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key)
Eterm* hp;
DeclareTmpHeap(mfa,3,p); /* Not really heap here, but might be when setting pattern */
Binary *ms = NULL, *ms_meta = NULL;
- Sint count = 0;
+ Uint count = 0;
Eterm traced = am_false;
Eterm match_spec = am_false;
Eterm retval = am_false;
@@ -1137,9 +1201,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key)
break;
case am_call_count:
if (r & FUNC_TRACE_COUNT_TRACE) {
- retval = count < 0 ?
- erts_make_integer(-count-1, p) :
- erts_make_integer(count, p);
+ retval = erts_make_integer(count, p);
}
break;
case am_call_time:
@@ -1328,38 +1390,53 @@ trace_info_on_load(Process* p, Eterm key)
#undef FUNC_TRACE_LOCAL_TRACE
int
-erts_set_trace_pattern(Eterm* mfa, int specified,
+erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
Binary* match_prog_set, Binary *meta_match_prog_set,
int on, struct trace_pattern_flags flags,
- Eterm meta_tracer_pid)
+ Eterm meta_tracer_pid, int is_blocking)
{
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
int matches = 0;
int i;
+ int n;
+ BpFunction* fp;
/*
* First work on normal functions (not real BIFs).
*/
-
- for (i = 0; i < export_list_size(); i++) {
- Export* ep = export_list(i);
- int j;
-
- if (ExportIsBuiltIn(ep)) {
- continue;
- }
-
- for (j = 0; j < specified && mfa[j] == ep->code[j]; j++) {
- /* Empty loop body */
- }
- if (j == specified) {
- if (on) {
- if (! flags.breakpoint)
- matches += setup_func_trace(ep, match_prog_set);
- else
- reset_func_trace(ep);
- } else if (! flags.breakpoint) {
- matches += reset_func_trace(ep);
+ erts_bp_match_export(&finish_bp.e, mfa, specified);
+ fp = finish_bp.e.matching;
+ n = finish_bp.e.matched;
+
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *)(((char *)(pc-3)) - offsetof(Export, code));
+
+ if (on && !flags.breakpoint) {
+ /* Turn on global call tracing */
+ if (ep->addressv[code_ix] != pc) {
+ fp[i].mod->curr.num_traced_exports++;
+#ifdef DEBUG
+ pc[-5] = (BeamInstr) BeamOp(op_i_func_info_IaaI);
+#endif
+ pc[0] = (BeamInstr) BeamOp(op_jump_f);
+ pc[1] = (BeamInstr) ep->addressv[code_ix];
+ }
+ erts_set_call_trace_bif(pc, match_prog_set, 0);
+ if (ep->addressv[code_ix] != pc) {
+ pc[0] = (BeamInstr) BeamOp(op_i_generic_breakpoint);
+ }
+ } else if (!on && flags.breakpoint) {
+ /* Turn off breakpoint tracing -- nothing to do here. */
+ } else {
+ /*
+ * Turn off global tracing, either explicitly or implicitly
+ * before turning on breakpoint tracing.
+ */
+ erts_clear_call_trace_bif(pc, 0);
+ if (pc[0] == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ pc[0] = (BeamInstr) BeamOp(op_jump_f);
}
}
}
@@ -1384,26 +1461,15 @@ erts_set_trace_pattern(Eterm* mfa, int specified,
/* Empty loop body */
}
if (j == specified) {
+ BeamInstr* pc = (BeamInstr *)bif_export[i]->code + 3;
+
if (! flags.breakpoint) { /* Export entry call trace */
if (on) {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_META) {
- ASSERT(ExportIsBuiltIn(bif_export[i]));
- erts_clear_mtrace_bif
- ((BeamInstr *)bif_export[i]->code + 3);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_META;
- }
- set_trace_bif(i, match_prog_set);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_LOCAL;
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_GLOBAL;
- setup_bif_trace(i);
+ erts_clear_call_trace_bif(pc, 1);
+ erts_clear_mtrace_bif(pc);
+ erts_set_call_trace_bif(pc, match_prog_set, 0);
} else { /* off */
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_GLOBAL) {
- clear_trace_bif(i);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL;
- }
- if (! erts_bif_trace_flags[i]) {
- reset_bif_trace(i);
- }
+ erts_clear_call_trace_bif(pc, 0);
}
matches++;
} else { /* Breakpoint call trace */
@@ -1411,52 +1477,33 @@ erts_set_trace_pattern(Eterm* mfa, int specified,
if (on) {
if (flags.local) {
- set_trace_bif(i, match_prog_set);
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_LOCAL;
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL;
+ erts_clear_call_trace_bif(pc, 0);
+ erts_set_call_trace_bif(pc, match_prog_set, 1);
m = 1;
}
if (flags.meta) {
- erts_set_mtrace_bif
- ((BeamInstr *)bif_export[i]->code + 3,
- meta_match_prog_set, meta_tracer_pid);
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_META;
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL;
+ erts_set_mtrace_bif(pc, meta_match_prog_set,
+ meta_tracer_pid);
m = 1;
}
if (flags.call_time) {
- erts_set_time_trace_bif(bif_export[i]->code + 3, on);
+ erts_set_time_trace_bif(pc, on);
/* I don't want to remove any other tracers */
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_CALL_TIME;
m = 1;
}
- if (erts_bif_trace_flags[i]) {
- setup_bif_trace(i);
- }
} else { /* off */
if (flags.local) {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_LOCAL) {
- clear_trace_bif(i);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_LOCAL;
- }
+ erts_clear_call_trace_bif(pc, 1);
m = 1;
}
if (flags.meta) {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_META) {
- erts_clear_mtrace_bif
- ((BeamInstr *)bif_export[i]->code + 3);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_META;
- }
+ erts_clear_mtrace_bif(pc);
m = 1;
}
if (flags.call_time) {
- erts_clear_time_trace_bif(bif_export[i]->code + 3);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_CALL_TIME;
+ erts_clear_time_trace_bif(pc);
m = 1;
}
- if (! erts_bif_trace_flags[i]) {
- reset_bif_trace(i);
- }
}
matches += m;
}
@@ -1466,176 +1513,241 @@ erts_set_trace_pattern(Eterm* mfa, int specified,
/*
** So, now for breakpoint tracing
*/
+ erts_bp_match_functions(&finish_bp.f, mfa, specified);
if (on) {
if (! flags.breakpoint) {
- erts_clear_trace_break(mfa, specified);
- erts_clear_mtrace_break(mfa, specified);
- erts_clear_count_break(mfa, specified);
- erts_clear_time_break(mfa, specified);
+ erts_clear_all_breaks(&finish_bp.f);
} else {
- int m = 0;
if (flags.local) {
- m = erts_set_trace_break(mfa, specified, match_prog_set,
- am_true);
+ erts_set_trace_break(&finish_bp.f, match_prog_set);
}
if (flags.meta) {
- m = erts_set_mtrace_break(mfa, specified, meta_match_prog_set,
- meta_tracer_pid);
+ erts_set_mtrace_break(&finish_bp.f, meta_match_prog_set,
+ meta_tracer_pid);
}
if (flags.call_count) {
- m = erts_set_count_break(mfa, specified, on);
+ erts_set_count_break(&finish_bp.f, on);
}
if (flags.call_time) {
- m = erts_set_time_break(mfa, specified, on);
+ erts_set_time_break(&finish_bp.f, on);
}
- /* All assignments to 'm' above should give the same value,
- * so just use the last */
- matches += m;
}
} else {
- int m = 0;
if (flags.local) {
- m = erts_clear_trace_break(mfa, specified);
+ erts_clear_trace_break(&finish_bp.f);
}
if (flags.meta) {
- m = erts_clear_mtrace_break(mfa, specified);
+ erts_clear_mtrace_break(&finish_bp.f);
}
if (flags.call_count) {
- m = erts_clear_count_break(mfa, specified);
+ erts_clear_count_break(&finish_bp.f);
}
if (flags.call_time) {
- m = erts_clear_time_break(mfa, specified);
+ erts_clear_time_break(&finish_bp.f);
+ }
+ }
+
+ finish_bp.current = 0;
+ finish_bp.install = on;
+ finish_bp.local = flags.breakpoint;
+
+#ifdef ERTS_SMP
+ if (is_blocking) {
+ ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
+#endif
+ while (erts_finish_breakpointing()) {
+ /* Empty loop body */
}
- /* All assignments to 'm' above should give the same value,
- * so just use the last */
- matches += m;
+#ifdef ERTS_SMP
+ finish_bp.current = -1;
}
+#endif
+ if (flags.breakpoint) {
+ matches += finish_bp.f.matched;
+ } else {
+ matches += finish_bp.e.matched;
+ }
return matches;
}
-/*
- * Setup function tracing for the given exported function.
- *
- * Return Value: 1 if entry refers to a BIF or loaded function,
- * 0 if the entry refers to a function not loaded.
- */
-
-static int
-setup_func_trace(Export* ep, void* match_prog)
+int
+erts_finish_breakpointing(void)
{
- if (ep->address == ep->code+3) {
- if (ep->code[3] == (BeamInstr) em_call_error_handler) {
- return 0;
- } else if (ep->code[3] == (BeamInstr) em_call_traced_function) {
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = match_prog;
- MatchSetRef(ep->match_prog_set);
- return 1;
- } else {
- /*
- * We ignore apply/3 and anything else.
- */
- return 0;
- }
- }
-
+ ERTS_SMP_LC_ASSERT(erts_has_code_write_permission());
+
/*
- * Currently no trace support for native code.
+ * Memory barriers will be issued for all processes *before*
+ * each of the stages below. (Unless the other schedulers
+ * are blocked, in which case memory barriers will be issued
+ * when they are awaken.)
*/
- if (erts_is_native_break(ep->address)) {
+ switch (finish_bp.current++) {
+ case 0:
+ /*
+ * At this point, in all functions that are to be breakpointed,
+ * a pointer to a GenericBp struct has already been added,
+ *
+ * Insert the new breakpoints (if any) into the
+ * code. Different schedulers may see breakpoint instruction
+ * at different times, but it does not matter since the newly
+ * added breakpoints are disabled.
+ */
+ if (finish_bp.install) {
+ if (finish_bp.local) {
+ erts_install_breakpoints(&finish_bp.f);
+ } else {
+ install_exp_breakpoints(&finish_bp.e);
+ }
+ }
+ setup_bif_trace();
+ return 1;
+ case 1:
+ /*
+ * Switch index for the breakpoint data, activating the staged
+ * data. (Depending on the changes in the breakpoint data,
+ * that could either activate breakpoints or disable
+ * breakpoints.)
+ */
+ erts_commit_staged_bp();
+ return 1;
+ case 2:
+ /*
+ * Remove breakpoints instructions for disabled breakpoints
+ * (if any).
+ */
+ if (finish_bp.install) {
+ if (finish_bp.local) {
+ uninstall_exp_breakpoints(&finish_bp.e);
+ } else {
+ erts_uninstall_breakpoints(&finish_bp.f);
+ }
+ } else {
+ if (finish_bp.local) {
+ erts_uninstall_breakpoints(&finish_bp.f);
+ } else {
+ uninstall_exp_breakpoints(&finish_bp.e);
+ }
+ }
+ reset_bif_trace();
+ return 1;
+ case 3:
+ /*
+ * Now all breakpoints have either been inserted or removed.
+ * For all updated breakpoints, copy the active breakpoint
+ * data to the staged breakpoint data to make them equal
+ * (simplifying for the next time breakpoints are to be
+ * updated). If any breakpoints have been totally disabled,
+ * deallocate the GenericBp structs for them.
+ */
+ erts_consolidate_bif_bp_data();
+ clean_export_entries(&finish_bp.e);
+ erts_consolidate_bp_data(&finish_bp.e, 0);
+ erts_consolidate_bp_data(&finish_bp.f, 1);
+ erts_bp_free_matched_functions(&finish_bp.e);
+ erts_bp_free_matched_functions(&finish_bp.f);
return 0;
+ default:
+ ASSERT(0);
}
-
- ep->code[3] = (BeamInstr) em_call_traced_function;
- ep->code[4] = (BeamInstr) ep->address;
- ep->address = ep->code+3;
- ep->match_prog_set = match_prog;
- MatchSetRef(ep->match_prog_set);
- return 1;
+ return 0;
}
-static void setup_bif_trace(int bif_index) {
- Export *ep = bif_export[bif_index];
-
- ASSERT(ExportIsBuiltIn(ep));
- ASSERT(ep->code[4]);
- ep->code[4] = (BeamInstr) bif_table[bif_index].traced;
-}
+static void
+install_exp_breakpoints(BpFunctions* f)
+{
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
+ BpFunction* fp = f->matching;
+ Uint ne = f->matched;
+ Uint i;
+ Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
-static void set_trace_bif(int bif_index, void* match_prog) {
- Export *ep = bif_export[bif_index];
-
-#ifdef HARDDEBUG
- erts_fprintf(stderr, "set_trace_bif: %T:%T/%bpu\n",
- ep->code[0], ep->code[1], ep->code[2]);
-#endif
- ASSERT(ExportIsBuiltIn(ep));
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = match_prog;
- MatchSetRef(ep->match_prog_set);
-}
+ for (i = 0; i < ne; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *) (((char *)pc)-offset);
-/*
- * Reset function tracing for the given exported function.
- *
- * Return Value: 1 if entry refers to a BIF or loaded function,
- * 0 if the entry refers to a function not loaded.
- */
+ ep->addressv[code_ix] = pc;
+ }
+}
-static int
-reset_func_trace(Export* ep)
+static void
+uninstall_exp_breakpoints(BpFunctions* f)
{
- if (ep->address == ep->code+3) {
- if (ep->code[3] == (BeamInstr) em_call_error_handler) {
- return 0;
- } else if (ep->code[3] == (BeamInstr) em_call_traced_function) {
- ep->address = (Uint *) ep->code[4];
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = NULL;
- return 1;
- } else {
- /*
- * We ignore apply/3 and anything else.
- */
- return 0;
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
+ BpFunction* fp = f->matching;
+ Uint ne = f->matched;
+ Uint i;
+ Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
+
+ for (i = 0; i < ne; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *) (((char *)pc)-offset);
+
+ if (ep->addressv[code_ix] != pc) {
+ continue;
}
+ ASSERT(*pc == (BeamInstr) BeamOp(op_jump_f));
+ ep->addressv[code_ix] = (BeamInstr *) ep->code[4];
}
-
- /*
- * Currently no trace support for native code.
- */
- if (erts_is_native_break(ep->address)) {
- return 0;
- }
-
- /*
- * Nothing to do, but the export entry matches.
- */
+}
- return 1;
+static void
+clean_export_entries(BpFunctions* f)
+{
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
+ BpFunction* fp = f->matching;
+ Uint ne = f->matched;
+ Uint i;
+ Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
+
+ for (i = 0; i < ne; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *) (((char *)pc)-offset);
+
+ if (ep->addressv[code_ix] == pc) {
+ continue;
+ }
+ if (*pc == (BeamInstr) BeamOp(op_jump_f)) {
+ ep->code[3] = (BeamInstr) 0;
+ ep->code[4] = (BeamInstr) 0;
+ }
+ }
}
-static void reset_bif_trace(int bif_index) {
- Export *ep = bif_export[bif_index];
-
- ASSERT(ExportIsBuiltIn(ep));
- ASSERT(ep->code[4]);
- ASSERT(! ep->match_prog_set);
- ASSERT(! erts_is_mtrace_break((BeamInstr *)ep->code+3, NULL, NULL));
- ep->code[4] = (BeamInstr) bif_table[bif_index].f;
+static void
+setup_bif_trace(void)
+{
+ int i;
+
+ for (i = 0; i < BIF_SIZE; ++i) {
+ Export *ep = bif_export[i];
+ GenericBp* g = (GenericBp *) ep->fake_op_func_info_for_hipe[1];
+ if (g) {
+ if (ExportIsBuiltIn(ep)) {
+ ASSERT(ep->code[4]);
+ ep->code[4] = (BeamInstr) bif_table[i].traced;
+ }
+ }
+ }
}
-static void clear_trace_bif(int bif_index) {
- Export *ep = bif_export[bif_index];
-
-#ifdef HARDDEBUG
- erts_fprintf(stderr, "clear_trace_bif: %T:%T/%bpu\n",
- ep->code[0], ep->code[1], ep->code[2]);
-#endif
- ASSERT(ExportIsBuiltIn(ep));
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = NULL;
+static void
+reset_bif_trace(void)
+{
+ int i;
+ ErtsBpIndex active = erts_active_bp_ix();
+
+ for (i = 0; i < BIF_SIZE; ++i) {
+ Export *ep = bif_export[i];
+ BeamInstr* pc = ep->code+3;
+ GenericBp* g = (GenericBp *) pc[-4];
+ if (g && g->data[active].flags == 0) {
+ if (ExportIsBuiltIn(ep)) {
+ ASSERT(ep->code[4]);
+ ep->code[4] = (BeamInstr) bif_table[i].f;
+ }
+ }
+ }
}
/*
@@ -1776,7 +1888,7 @@ new_seq_trace_token(Process* p)
SEQ_TRACE_TOKEN(p) = TUPLE5(hp, make_small(0), /* Flags */
make_small(0), /* Label */
make_small(0), /* Serial */
- p->id, /* Internal pid */ /* From */
+ p->common.id, /* Internal pid */ /* From */
make_small(p->seq_trace_lastcnt));
}
}
@@ -2142,13 +2254,15 @@ BIF_RETTYPE system_profile_2(BIF_ALIST_2)
/* Check if valid process, no locks are taken */
if (is_internal_pid(profiler)) {
- if (internal_pid_index(profiler) >= erts_max_processes) goto error;
- profiler_p = process_tab[internal_pid_index(profiler)];
- if (INVALID_PID(profiler_p, profiler)) goto error;
+ profiler_p = erts_proc_lookup(profiler);
+ if (!profiler_p)
+ goto error;
} else if (is_internal_port(profiler)) {
- if (internal_port_index(profiler) >= erts_max_ports) goto error;
- profiler_port = &erts_port[internal_port_index(profiler)];
- if (INVALID_TRACER_PORT(profiler_port, profiler)) goto error;
+ profiler_port = (erts_port_lookup(
+ profiler,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP));
+ if (!profiler_port)
+ goto error;
} else {
goto error;
}
@@ -2212,8 +2326,7 @@ trace_delivered_1(BIF_ALIST_1)
p = NULL;
} else if (! (p = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
BIF_ARG_1, ERTS_PROC_LOCKS_ALL))) {
- if (is_not_internal_pid(BIF_ARG_1)
- || internal_pid_index(BIF_ARG_1) >= erts_max_processes) {
+ if (is_not_internal_pid(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
}
@@ -2232,7 +2345,7 @@ trace_delivered_1(BIF_ALIST_1)
msg = TUPLE3(hp, AM_trace_delivered, BIF_ARG_1, msg_ref);
#ifdef ERTS_SMP
- erts_send_sys_msg_proc(BIF_P->id, BIF_P->id, msg, bp);
+ erts_send_sys_msg_proc(BIF_P->common.id, BIF_P->common.id, msg, bp);
if (p)
erts_smp_proc_unlock(p,
(BIF_P == p
diff --git a/erts/emulator/beam/erl_cpu_topology.c b/erts/emulator/beam/erl_cpu_topology.c
index fe3693d0ca..3f90f34736 100644
--- a/erts/emulator/beam/erl_cpu_topology.c
+++ b/erts/emulator/beam/erl_cpu_topology.c
@@ -486,7 +486,7 @@ erts_sched_check_cpu_bind_post_suspend(ErtsSchedulerData *esdp)
erts_thr_set_main_status(1, (int) esdp->no);
/* Make sure we check if we should bind to a cpu or not... */
- esdp->run_queue->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND;
+ (void) ERTS_RUNQ_FLGS_SET(esdp->run_queue, ERTS_RUNQ_FLG_CHK_CPU_BIND);
}
#endif
@@ -498,9 +498,6 @@ erts_sched_check_cpu_bind(ErtsSchedulerData *esdp)
erts_cpu_groups_map_t *cgm;
erts_cpu_groups_callback_list_t *cgcl;
erts_cpu_groups_callback_call_t *cgcc;
-#ifdef ERTS_SMP
- esdp->run_queue->flags &= ~ERTS_RUNQ_FLG_CHK_CPU_BIND;
-#endif
erts_smp_runq_unlock(esdp->run_queue);
erts_smp_rwmtx_rwlock(&cpuinfo_rwmtx);
cpu_id = scheduler2cpu_map[esdp->no].bind_id;
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 7409564167..48a95cdf32 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -224,8 +224,9 @@ Export ets_select_continue_exp;
static Export ets_delete_continue_exp;
static void
-free_dbtable(DbTable* tb)
+free_dbtable(void *vtb)
{
+ DbTable *tb = (DbTable *) vtb;
#ifdef HARDDEBUG
if (erts_smp_atomic_read_nob(&tb->common.memory_size) != sizeof(DbTable)) {
erts_fprintf(stderr, "ets: free_dbtable memory remain=%ld fix=%x\n",
@@ -250,20 +251,8 @@ free_dbtable(DbTable* tb)
#endif
ASSERT(is_immed(tb->common.heir_data));
erts_db_free(ERTS_ALC_T_DB_TABLE, tb, (void *) tb, sizeof(DbTable));
- ERTS_SMP_MEMORY_BARRIER;
}
-#ifdef ERTS_SMP
-static void
-chk_free_dbtable(void *vtb)
-{
- DbTable * tb = (DbTable *) vtb;
- ERTS_THR_MEMORY_BARRIER;
- if (erts_refc_dectest(&tb->common.ref, 0) == 0)
- free_dbtable(tb);
-}
-#endif
-
static void schedule_free_dbtable(DbTable* tb)
{
/*
@@ -274,15 +263,10 @@ static void schedule_free_dbtable(DbTable* tb)
* need to unlock the table lock after this
* function has returned).
*/
-#ifdef ERTS_SMP
- int scheds = erts_get_max_no_executing_schedulers();
- ASSERT(scheds >= 1);
ASSERT(erts_refc_read(&tb->common.ref, 0) == 0);
- erts_refc_init(&tb->common.ref, scheds);
- erts_schedule_multi_misc_aux_work(0, scheds, chk_free_dbtable, tb);
-#else
- free_dbtable(tb);
-#endif
+ erts_schedule_thr_prgr_later_op(free_dbtable,
+ (void *) tb,
+ &tb->release.data);
}
static ERTS_INLINE void db_init_lock(DbTable* tb, int use_frequent_read_lock,
@@ -441,7 +425,8 @@ DbTable* db_get_table_aux(Process *p,
if (tb) {
db_lock(tb, kind);
if (tb->common.id != id
- || ((tb->common.status & what) == 0 && p->id != tb->common.owner)) {
+ || ((tb->common.status & what) == 0
+ && p->common.id != tb->common.owner)) {
db_unlock(tb, kind);
tb = NULL;
}
@@ -541,10 +526,6 @@ static int remove_named_tab(DbTable *tb, int have_lock)
&rwlock);
#ifdef ERTS_SMP
if (!have_lock && erts_smp_rwmtx_tryrwlock(rwlock) == EBUSY) {
- /*
- * We keep our increased refc over this op in order to
- * prevent the table from disapearing.
- */
db_unlock(tb, LCK_WRITE);
erts_smp_rwmtx_rwlock(rwlock);
db_lock(tb, LCK_WRITE);
@@ -635,7 +616,7 @@ BIF_RETTYPE ets_safe_fixtable_2(BIF_ALIST_2)
#ifdef HARDDEBUG
erts_fprintf(stderr,
"ets:safe_fixtable(%T,%T); Process: %T, initial: %T:%T/%bpu\n",
- BIF_ARG_1, BIF_ARG_2, BIF_P->id,
+ BIF_ARG_1, BIF_ARG_2, BIF_P->common.id,
BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
#endif
kind = (BIF_ARG_2 == am_true) ? LCK_READ : LCK_WRITE_REC;
@@ -1214,7 +1195,7 @@ BIF_RETTYPE ets_rename_2(BIF_ALIST_2)
#ifdef HARDDEBUG
erts_fprintf(stderr,
"ets:rename(%T,%T); Process: %T, initial: %T:%T/%bpu\n",
- BIF_ARG_1, BIF_ARG_2, BIF_P->id,
+ BIF_ARG_1, BIF_ARG_2, BIF_P->common.id,
BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
#endif
@@ -1457,7 +1438,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
db_init_lock(tb, status & (DB_FINE_LOCKED|DB_FREQ_READ),
"db_tab", "db_tab_fix");
tb->common.keypos = keypos;
- tb->common.owner = BIF_P->id;
+ tb->common.owner = BIF_P->common.id;
set_heir(BIF_P, tb, heir, heir_data);
erts_smp_atomic_init_nob(&tb->common.nitems, 0);
@@ -1479,7 +1460,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
"** Too many db tables **\n");
free_heir_data(tb);
tb->common.meth->db_free_table(tb);
- free_dbtable(tb);
+ free_dbtable((void *) tb);
BIF_ERROR(BIF_P, SYSTEM_LIMIT);
}
@@ -1526,7 +1507,7 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
#ifdef HARDDEBUG
erts_fprintf(stderr,
"ets:new(%T,%T)=%T; Process: %T, initial: %T:%T/%bpu\n",
- BIF_ARG_1, BIF_ARG_2, ret, BIF_P->id,
+ BIF_ARG_1, BIF_ARG_2, ret, BIF_P->common.id,
BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
erts_fprintf(stderr, "ets: new: meta_pid_to_tab common.memory_size = %ld\n",
erts_smp_atomic_read_nob(&meta_pid_to_tab->common.memory_size));
@@ -1538,7 +1519,9 @@ BIF_RETTYPE ets_new_2(BIF_ALIST_2)
db_meta_lock(meta_pid_to_tab, LCK_WRITE_REC);
if (db_put_hash(meta_pid_to_tab,
- TUPLE2(meta_tuple, BIF_P->id, make_small(slot)),
+ TUPLE2(meta_tuple,
+ BIF_P->common.id,
+ make_small(slot)),
0) != DB_ERROR_NONE) {
erl_exit(1,"Could not update ets metadata.");
}
@@ -1657,7 +1640,7 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1)
#ifdef HARDDEBUG
erts_fprintf(stderr,
"ets:delete(%T); Process: %T, initial: %T:%T/%bpu\n",
- BIF_ARG_1, BIF_P->id,
+ BIF_ARG_1, BIF_P->common.id,
BIF_P->initial[0], BIF_P->initial[1], BIF_P->initial[2]);
#endif
@@ -1674,7 +1657,7 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1)
tb->common.status &= ~(DB_PROTECTED|DB_PUBLIC|DB_PRIVATE);
tb->common.status |= DB_DELETE;
- if (tb->common.owner != BIF_P->id) {
+ if (tb->common.owner != BIF_P->common.id) {
DeclareTmpHeap(meta_tuple,3,BIF_P);
/*
@@ -1689,10 +1672,12 @@ BIF_RETTYPE ets_delete_1(BIF_ALIST_1)
make_small(tb->common.slot));
BIF_P->flags |= F_USING_DB;
- tb->common.owner = BIF_P->id;
+ tb->common.owner = BIF_P->common.id;
db_put_hash(meta_pid_to_tab,
- TUPLE2(meta_tuple,BIF_P->id,make_small(tb->common.slot)),
+ TUPLE2(meta_tuple,
+ BIF_P->common.id,
+ make_small(tb->common.slot)),
0);
db_meta_unlock(meta_pid_to_tab, LCK_WRITE_REC);
UnUseTmpHeap(3,BIF_P);
@@ -1768,7 +1753,7 @@ BIF_RETTYPE ets_give_away_3(BIF_ALIST_3)
}
if ((tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE)) == NULL
- || tb->common.owner != BIF_P->id) {
+ || tb->common.owner != BIF_P->common.id) {
goto badarg;
}
from_pid = tb->common.owner;
@@ -1791,7 +1776,10 @@ BIF_RETTYPE ets_give_away_3(BIF_ALIST_3)
db_unlock(tb,LCK_WRITE);
erts_send_message(BIF_P, to_proc, &to_locks,
- TUPLE4(buf, am_ETS_TRANSFER, tb->common.id, from_pid, BIF_ARG_3),
+ TUPLE4(buf, am_ETS_TRANSFER,
+ tb->common.id,
+ from_pid,
+ BIF_ARG_3),
0);
erts_smp_proc_unlock(to_proc, to_locks);
UnUseTmpHeap(5,BIF_P);
@@ -1853,7 +1841,7 @@ BIF_RETTYPE ets_setopts_2(BIF_ALIST_2)
if (tail != NIL
|| (tb = db_get_table(BIF_P, BIF_ARG_1, DB_WRITE, LCK_WRITE)) == NULL
- || tb->common.owner != BIF_P->id) {
+ || tb->common.owner != BIF_P->common.id) {
goto badarg;
}
@@ -2667,7 +2655,7 @@ BIF_RETTYPE ets_info_1(BIF_ALIST_1)
*/
/* If/when we implement lockless private tables:
- if ((tb->common.status & DB_PRIVATE) && owner != BIF_P->id) {
+ if ((tb->common.status & DB_PRIVATE) && owner != BIF_P->common.id) {
db_unlock(tb, LCK_READ);
rp = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN,
owner, ERTS_PROC_LOCK_MAIN);
@@ -2814,7 +2802,6 @@ void init_db(void)
{
DbTable init_tb;
int i;
- extern BeamInstr* em_apply_bif;
Eterm *hp;
unsigned bits;
size_t size;
@@ -2848,7 +2835,7 @@ void init_db(void)
else
db_max_tabs = user_requested_db_max_tabs;
- bits = erts_fit_in_bits(db_max_tabs-1);
+ bits = erts_fit_in_bits_int32(db_max_tabs-1);
if (bits > SMALL_BITS) {
erl_exit(1,"Max limit for ets tabled too high %u (max %u).",
db_max_tabs, ((Uint)1)<<SMALL_BITS);
@@ -2945,49 +2932,24 @@ void init_db(void)
}
/* Non visual BIF to trap to. */
- memset(&ets_select_delete_continue_exp, 0, sizeof(Export));
- ets_select_delete_continue_exp.address =
- &ets_select_delete_continue_exp.code[3];
- ets_select_delete_continue_exp.code[0] = am_ets;
- ets_select_delete_continue_exp.code[1] = am_atom_put("delete_trap",11);
- ets_select_delete_continue_exp.code[2] = 1;
- ets_select_delete_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_delete_continue_exp.code[4] =
- (BeamInstr) &ets_select_delete_1;
+ erts_init_trap_export(&ets_select_delete_continue_exp,
+ am_ets, am_atom_put("delete_trap",11), 1,
+ &ets_select_delete_1);
/* Non visual BIF to trap to. */
- memset(&ets_select_count_continue_exp, 0, sizeof(Export));
- ets_select_count_continue_exp.address =
- &ets_select_count_continue_exp.code[3];
- ets_select_count_continue_exp.code[0] = am_ets;
- ets_select_count_continue_exp.code[1] = am_atom_put("count_trap",11);
- ets_select_count_continue_exp.code[2] = 1;
- ets_select_count_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_count_continue_exp.code[4] =
- (BeamInstr) &ets_select_count_1;
+ erts_init_trap_export(&ets_select_count_continue_exp,
+ am_ets, am_atom_put("count_trap",11), 1,
+ &ets_select_count_1);
/* Non visual BIF to trap to. */
- memset(&ets_select_continue_exp, 0, sizeof(Export));
- ets_select_continue_exp.address =
- &ets_select_continue_exp.code[3];
- ets_select_continue_exp.code[0] = am_ets;
- ets_select_continue_exp.code[1] = am_atom_put("select_trap",11);
- ets_select_continue_exp.code[2] = 1;
- ets_select_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_continue_exp.code[4] =
- (BeamInstr) &ets_select_trap_1;
+ erts_init_trap_export(&ets_select_continue_exp,
+ am_ets, am_atom_put("select_trap",11), 1,
+ &ets_select_trap_1);
/* Non visual BIF to trap to. */
- memset(&ets_delete_continue_exp, 0, sizeof(Export));
- ets_delete_continue_exp.address = &ets_delete_continue_exp.code[3];
- ets_delete_continue_exp.code[0] = am_ets;
- ets_delete_continue_exp.code[1] = am_atom_put("delete_trap",11);
- ets_delete_continue_exp.code[2] = 1;
- ets_delete_continue_exp.code[3] = (BeamInstr) em_apply_bif;
- ets_delete_continue_exp.code[4] = (BeamInstr) &ets_delete_trap;
+ erts_init_trap_export(&ets_delete_continue_exp,
+ am_ets, am_atom_put("delete_trap",11), 1,
+ &ets_delete_trap);
hp = ms_delete_all_buff;
ms_delete_all = CONS(hp, am_true, NIL);
@@ -3085,9 +3047,9 @@ static int give_away_to_heir(Process* p, DbTable* tb)
Eterm to_pid;
UWord heir_data;
- ASSERT(tb->common.owner == p->id);
+ ASSERT(tb->common.owner == p->common.id);
ASSERT(is_internal_pid(tb->common.heir));
- ASSERT(tb->common.heir != p->id);
+ ASSERT(tb->common.heir != p->common.id);
retry:
to_pid = tb->common.heir;
to_proc = erts_pid2proc_opt(p, ERTS_PROC_LOCK_MAIN,
@@ -3100,7 +3062,7 @@ retry:
db_lock(tb,LCK_WRITE);
ASSERT(tb != NULL);
- if (tb->common.owner != p->id) {
+ if (tb->common.owner != p->common.id) {
if (to_proc != NULL ) {
erts_smp_proc_unlock(to_proc, to_locks);
}
@@ -3111,7 +3073,7 @@ retry:
if (to_proc != NULL ) {
erts_smp_proc_unlock(to_proc, to_locks);
}
- if (to_pid == p->id || to_pid == am_none) {
+ if (to_pid == p->common.id || to_pid == am_none) {
return 0; /* no real heir, table still mine */
}
goto retry;
@@ -3120,7 +3082,8 @@ retry:
if (to_proc == NULL) {
return 0; /* heir not alive, table still mine */
}
- if (erts_cmp_timeval(&to_proc->started, &tb->common.heir_started) != 0) {
+ if (to_proc->common.u.alive.started_interval
+ != tb->common.heir_started_interval) {
erts_smp_proc_unlock(to_proc, to_locks);
return 0; /* heir dead and pid reused, table still mine */
}
@@ -3145,7 +3108,11 @@ retry:
heir_data = tpv[1];
}
erts_send_message(p, to_proc, &to_locks,
- TUPLE4(buf, am_ETS_TRANSFER, tb->common.id, p->id, heir_data),
+ TUPLE4(buf,
+ am_ETS_TRANSFER,
+ tb->common.id,
+ p->common.id,
+ heir_data),
0);
erts_smp_proc_unlock(to_proc, to_locks);
return !0;
@@ -3154,7 +3121,7 @@ retry:
/*
* erts_db_process_exiting() is called when a process terminates.
* It returns 0 when completely done, and !0 when it wants to
- * yield. c_p->u.exit_data can hold a pointer to a state while
+ * yield. c_p->u.terminate can hold a pointer to a state while
* yielding.
*/
#define ERTS_DB_INTERNAL_ERROR(LSTR) \
@@ -3164,8 +3131,8 @@ retry:
int
erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks)
{
- ErtsDbProcCleanupState *state = (ErtsDbProcCleanupState *) c_p->u.exit_data;
- Eterm pid = c_p->id;
+ ErtsDbProcCleanupState *state = (ErtsDbProcCleanupState *) c_p->u.terminate;
+ Eterm pid = c_p->common.id;
ErtsDbProcCleanupState default_state;
int ret;
@@ -3346,7 +3313,7 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks)
if (state != &default_state)
erts_free(ERTS_ALC_T_DB_PROC_CLEANUP, state);
- c_p->u.exit_data = NULL;
+ c_p->u.terminate = NULL;
return 0;
default:
@@ -3367,13 +3334,13 @@ erts_db_process_exiting(Process *c_p, ErtsProcLocks c_p_locks)
break;
}
- ASSERT(c_p->u.exit_data == (void *) state
+ ASSERT(c_p->u.terminate == (void *) state
|| state == &default_state);
if (state == &default_state) {
- c_p->u.exit_data = erts_alloc(ERTS_ALC_T_DB_PROC_CLEANUP,
+ c_p->u.terminate = erts_alloc(ERTS_ALC_T_DB_PROC_CLEANUP,
sizeof(ErtsDbProcCleanupState));
- sys_memcpy(c_p->u.exit_data,
+ sys_memcpy(c_p->u.terminate,
(void*) state,
sizeof(ErtsDbProcCleanupState));
}
@@ -3399,7 +3366,7 @@ static void fix_table_locked(Process* p, DbTable* tb)
}
else {
for (; fix != NULL; fix = fix->next) {
- if (fix->pid == p->id) {
+ if (fix->pid == p->common.id) {
++(fix->counter);
#ifdef ERTS_SMP
erts_smp_mtx_unlock(&tb->common.fixlock);
@@ -3411,7 +3378,7 @@ static void fix_table_locked(Process* p, DbTable* tb)
fix = (DbFixation *) erts_db_alloc(ERTS_ALC_T_DB_FIXATION,
tb, sizeof(DbFixation));
ERTS_ETS_MISC_MEM_ADD(sizeof(DbFixation));
- fix->pid = p->id;
+ fix->pid = p->common.id;
fix->counter = 1;
fix->next = tb->common.fixations;
tb->common.fixations = fix;
@@ -3422,7 +3389,9 @@ static void fix_table_locked(Process* p, DbTable* tb)
UseTmpHeap(3,p);
db_meta_lock(meta_pid_to_fixed_tab, LCK_WRITE_REC);
if (db_put_hash(meta_pid_to_fixed_tab,
- TUPLE2(meta_tuple, p->id, make_small(tb->common.slot)),
+ TUPLE2(meta_tuple,
+ p->common.id,
+ make_small(tb->common.slot)),
0) != DB_ERROR_NONE) {
UnUseTmpHeap(3,p);
erl_exit(1,"Could not insert ets metadata in safe_fixtable.");
@@ -3442,7 +3411,7 @@ static void unfix_table_locked(Process* p, DbTable* tb,
erts_smp_mtx_lock(&tb->common.fixlock);
#endif
for (pp = &tb->common.fixations; *pp != NULL; pp = &(*pp)->next) {
- if ((*pp)->pid == p->id) {
+ if ((*pp)->pid == p->common.id) {
DbFixation* fix = *pp;
erts_refc_dec(&tb->common.ref,0);
--(fix->counter);
@@ -3456,7 +3425,7 @@ static void unfix_table_locked(Process* p, DbTable* tb,
#endif
db_meta_lock(meta_pid_to_fixed_tab, LCK_WRITE_REC);
db_erase_bag_exact2(meta_pid_to_fixed_tab,
- p->id, make_small(tb->common.slot));
+ p->common.id, make_small(tb->common.slot));
db_meta_unlock(meta_pid_to_fixed_tab, LCK_WRITE_REC);
erts_db_free(ERTS_ALC_T_DB_FIXATION,
tb, (void *) fix, sizeof(DbFixation));
@@ -3515,15 +3484,15 @@ static void set_heir(Process* me, DbTable* tb, Eterm heir, UWord heir_data)
if (heir == am_none) {
return;
}
- if (heir == me->id) {
- tb->common.heir_started = me->started;
+ if (heir == me->common.id) {
+ erts_ensure_later_proc_interval(me->common.u.alive.started_interval);
+ tb->common.heir_started_interval = me->common.u.alive.started_interval;
}
else {
- Process* heir_proc= erts_pid2proc_opt(me, ERTS_PROC_LOCK_MAIN, heir,
- 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ Process* heir_proc= erts_proc_lookup(heir);
if (heir_proc != NULL) {
- tb->common.heir_started = heir_proc->started;
- erts_smp_proc_dec_refc(heir_proc);
+ erts_ensure_later_proc_interval(heir_proc->common.u.alive.started_interval);
+ tb->common.heir_started_interval = heir_proc->common.u.alive.started_interval;
} else {
tb->common.heir = am_none;
}
diff --git a/erts/emulator/beam/erl_db.h b/erts/emulator/beam/erl_db.h
index 2e5deaf338..e9a661efbc 100644
--- a/erts/emulator/beam/erl_db.h
+++ b/erts/emulator/beam/erl_db.h
@@ -27,6 +27,10 @@
#define __DB_H__
#include "sys.h"
+#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY
+#define ERL_THR_PROGRESS_TSD_TYPE_ONLY
+#include "erl_thr_progress.h"
+#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY
#include "bif.h"
#include "erl_db_util.h" /* Flags */
@@ -36,6 +40,11 @@
Uint erts_get_ets_misc_mem_size(void);
+typedef struct {
+ DbTableCommon common;
+ ErtsThrPrgrLaterOp data;
+} DbTableRelease;
+
/*
* So, the structure for a database table, NB this is only
* interesting in db.c.
@@ -44,6 +53,7 @@ union db_table {
DbTableCommon common; /* Any type of db table */
DbTableHash hash; /* Linear hash array specific data */
DbTableTree tree; /* AVL tree specific data */
+ DbTableRelease release;
/*TT*/
};
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index 312050b931..faa7f31d99 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -452,16 +452,8 @@ DbTableMethod db_tree =
void db_initialize_tree(void)
{
- memset(&ets_select_reverse_exp, 0, sizeof(Export));
- ets_select_reverse_exp.address =
- &ets_select_reverse_exp.code[3];
- ets_select_reverse_exp.code[0] = am_ets;
- ets_select_reverse_exp.code[1] = am_reverse;
- ets_select_reverse_exp.code[2] = 3;
- ets_select_reverse_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_reverse_exp.code[4] =
- (BeamInstr) &ets_select_reverse;
+ erts_init_trap_export(&ets_select_reverse_exp, am_ets, am_reverse, 3,
+ &ets_select_reverse);
return;
};
diff --git a/erts/emulator/beam/erl_db_util.c b/erts/emulator/beam/erl_db_util.c
index 42907e2e84..bb08762b26 100644
--- a/erts/emulator/beam/erl_db_util.c
+++ b/erts/emulator/beam/erl_db_util.c
@@ -138,21 +138,23 @@ set_tracee_flags(Process *tracee_p, Eterm tracer, Uint d_flags, Uint e_flags) {
Uint flags;
if (tracer == NIL) {
- flags = tracee_p->trace_flags & ~TRACEE_FLAGS;
+ flags = ERTS_TRACE_FLAGS(tracee_p) & ~TRACEE_FLAGS;
} else {
- flags = ((tracee_p->trace_flags & ~d_flags) | e_flags);
+ flags = ((ERTS_TRACE_FLAGS(tracee_p) & ~d_flags) | e_flags);
if (! flags) tracer = NIL;
}
- ret = tracee_p->tracer_proc != tracer || tracee_p->trace_flags != flags
- ? am_true : am_false;
- tracee_p->tracer_proc = tracer;
- tracee_p->trace_flags = flags;
+ ret = ((ERTS_TRACER_PROC(tracee_p) != tracer
+ || ERTS_TRACE_FLAGS(tracee_p) != flags)
+ ? am_true
+ : am_false);
+ ERTS_TRACER_PROC(tracee_p) = tracer;
+ ERTS_TRACE_FLAGS(tracee_p) = flags;
return ret;
}
/*
** Assuming all locks on tracee_p on entry
**
-** Changes tracee_p->trace_flags and tracee_p->tracer_proc
+** Changes ERTS_TRACE_FLAGS(tracee_p) and ERTS_TRACER_PROC(tracee_p)
** according to input disable/enable flags and tracer.
**
** Returns am_true|am_false on success, am_true if value changed,
@@ -173,17 +175,20 @@ set_match_trace(Process *tracee_p, Eterm fail_term, Eterm tracer,
tracer, ERTS_PROC_LOCKS_ALL))) {
if (tracee_p != tracer_p) {
ret = set_tracee_flags(tracee_p, tracer, d_flags, e_flags);
- tracer_p->trace_flags |= tracee_p->trace_flags ? F_TRACER : 0;
+ ERTS_TRACE_FLAGS(tracer_p) |= (ERTS_TRACE_FLAGS(tracee_p)
+ ? F_TRACER
+ : 0);
erts_smp_proc_unlock(tracer_p, ERTS_PROC_LOCKS_ALL);
}
} else if (is_internal_port(tracer)) {
Port *tracer_port =
- erts_id2port(tracer, tracee_p, ERTS_PROC_LOCKS_ALL);
+ erts_id2port_sflgs(tracer,
+ tracee_p,
+ ERTS_PROC_LOCKS_ALL,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
if (tracer_port) {
- if (! INVALID_TRACER_PORT(tracer_port, tracer)) {
- ret = set_tracee_flags(tracee_p, tracer, d_flags, e_flags);
- }
- erts_smp_port_unlock(tracer_port);
+ ret = set_tracee_flags(tracee_p, tracer, d_flags, e_flags);
+ erts_port_release(tracer_port);
}
} else {
ASSERT(is_nil(tracer));
@@ -2174,7 +2179,7 @@ restart:
pc += n;
break;
case matchSelf:
- *esp++ = c_p->id;
+ *esp++ = c_p->common.id;
break;
case matchWaste:
--esp;
@@ -2261,7 +2266,7 @@ restart:
case matchEnableTrace:
if ( (n = erts_trace_flag2bit(esp[-1]))) {
BEGIN_ATOMIC_TRACE(c_p);
- set_tracee_flags(c_p, c_p->tracer_proc, 0, n);
+ set_tracee_flags(c_p, ERTS_TRACER_PROC(c_p), 0, n);
esp[-1] = am_true;
} else {
esp[-1] = FAIL_TERM;
@@ -2274,7 +2279,7 @@ restart:
BEGIN_ATOMIC_TRACE(c_p);
if ( (tmpp = get_proc(c_p, 0, esp[0], 0))) {
/* Always take over the tracer of the current process */
- set_tracee_flags(tmpp, c_p->tracer_proc, 0, n);
+ set_tracee_flags(tmpp, ERTS_TRACER_PROC(c_p), 0, n);
esp[-1] = am_true;
}
}
@@ -2282,7 +2287,7 @@ restart:
case matchDisableTrace:
if ( (n = erts_trace_flag2bit(esp[-1]))) {
BEGIN_ATOMIC_TRACE(c_p);
- set_tracee_flags(c_p, c_p->tracer_proc, n, 0);
+ set_tracee_flags(c_p, ERTS_TRACER_PROC(c_p), n, 0);
esp[-1] = am_true;
} else {
esp[-1] = FAIL_TERM;
@@ -2295,7 +2300,7 @@ restart:
BEGIN_ATOMIC_TRACE(c_p);
if ( (tmpp = get_proc(c_p, 0, esp[0], 0))) {
/* Always take over the tracer of the current process */
- set_tracee_flags(tmpp, c_p->tracer_proc, n, 0);
+ set_tracee_flags(tmpp, ERTS_TRACER_PROC(c_p), n, 0);
esp[-1] = am_true;
}
}
@@ -2316,12 +2321,12 @@ restart:
--esp;
if (*esp == am_true) {
erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- c_p->trace_flags |= F_TRACE_SILENT;
+ ERTS_TRACE_FLAGS(c_p) |= F_TRACE_SILENT;
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
}
else if (*esp == am_false) {
erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- c_p->trace_flags &= ~F_TRACE_SILENT;
+ ERTS_TRACE_FLAGS(c_p) &= ~F_TRACE_SILENT;
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
}
break;
@@ -2329,11 +2334,11 @@ restart:
{
/* disable enable */
Uint d_flags = 0, e_flags = 0; /* process trace flags */
- Eterm tracer = c_p->tracer_proc;
+ Eterm tracer = ERTS_TRACER_PROC(c_p);
/* XXX Atomicity note: Not fully atomic. Default tracer
* is sampled from current process but applied to
* tracee and tracer later after releasing main
- * locks on current process, so c_p->tracer_proc
+ * locks on current process, so ERTS_TRACER_PROC(c_p)
* may actually have changed when tracee and tracer
* gets updated. I do not think nobody will notice.
* It is just the default value that is not fully atomic.
@@ -2358,7 +2363,7 @@ restart:
{
/* disable enable */
Uint d_flags = 0, e_flags = 0; /* process trace flags */
- Eterm tracer = c_p->tracer_proc;
+ Eterm tracer = ERTS_TRACER_PROC(c_p);
/* XXX Atomicity note. Not fully atomic. See above.
* Above it could possibly be solved, but not here.
*/
@@ -2480,7 +2485,7 @@ Eterm db_format_dmc_err_info(Process *p, DMCErrInfo *ei)
vnum = tmp->variable;
}
if (vnum >= 0)
- sprintf(buff,tmp->error_string, vnum);
+ erts_snprintf(buff,sizeof(buff)+20,tmp->error_string, vnum);
else
strcpy(buff,tmp->error_string);
sl = strlen(buff);
@@ -4485,7 +4490,9 @@ static DMCRet dmc_fun(DMCContext *context,
if (context->err_info != NULL) {
/* Ugly, should define a better RETURN_TERM_ERROR interface... */
char buff[100];
- sprintf(buff, "Function %%T/%d does_not_exist.", (int)a - 1);
+ erts_snprintf(buff, sizeof(buff),
+ "Function %%T/%d does_not_exist.",
+ (int)a - 1);
RETURN_TERM_ERROR(buff, p[1], context, *constant);
} else {
return retFail;
@@ -4500,7 +4507,7 @@ static DMCRet dmc_fun(DMCContext *context,
if (context->err_info != NULL) {
/* Ugly, should define a better RETURN_TERM_ERROR interface... */
char buff[100];
- sprintf(buff,
+ erts_snprintf(buff, sizeof(buff),
"Function %%T/%d cannot be called in this context.",
(int)a - 1);
RETURN_TERM_ERROR(buff, p[1], context, *constant);
@@ -4764,7 +4771,7 @@ static int match_compact(ErlHeapFragment *expr, DMCErrInfo *err_info)
for (j = 0; j < x && DMC_PEEK(heap,j) != n; ++j)
;
ASSERT(j < x);
- sprintf(buff+1,"%u", (unsigned) j);
+ erts_snprintf(buff+1, sizeof(buff) - 1, "%u", (unsigned) j);
/* Yes, writing directly into terms, they ARE off heap */
*p = am_atom_put(buff, strlen(buff));
}
@@ -5002,7 +5009,7 @@ static Eterm match_spec_test(Process *p, Eterm against, Eterm spec, int trace)
static Eterm seq_trace_fake(Process *p, Eterm arg1)
{
Eterm result = erl_seq_trace_info(p, arg1);
- if (is_tuple(result) && *tuple_val(result) == 2) {
+ if (!is_non_value(result) && is_tuple(result) && *tuple_val(result) == 2) {
return (tuple_val(result))[2];
}
return result;
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index 6a96e174e1..d8f6e40d2e 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -209,7 +209,7 @@ typedef struct db_fixation {
*/
typedef struct db_table_common {
- erts_refc_t ref; /* fixation counter and delete counter */
+ erts_refc_t ref; /* fixation counter */
#ifdef ERTS_SMP
erts_smp_rwmtx_t rwlock; /* rw lock on table */
erts_smp_mtx_t fixlock; /* Protects fixations,megasec,sec,microsec */
@@ -219,7 +219,7 @@ typedef struct db_table_common {
Eterm owner; /* Pid of the creator */
Eterm heir; /* Pid of the heir */
UWord heir_data; /* To send in ETS-TRANSFER (is_immed or (DbTerm*) */
- SysTimeval heir_started; /* To further identify the heir */
+ Uint64 heir_started_interval; /* To further identify the heir */
Eterm the_name; /* an atom */
Eterm id; /* atom | integer */
DbTableMethod* meth; /* table methods */
@@ -320,10 +320,10 @@ ERTS_GLB_INLINE int db_eq(DbTableCommon* tb, Eterm a, DbTerm* b)
#define DB_INFO (DB_PROTECTED|DB_PUBLIC|DB_PRIVATE)
#define ONLY_WRITER(P,T) (((T)->common.status & (DB_PRIVATE|DB_PROTECTED)) \
- && (T)->common.owner == (P)->id)
+ && (T)->common.owner == (P)->common.id)
#define ONLY_READER(P,T) (((T)->common.status & DB_PRIVATE) && \
-(T)->common.owner == (P)->id)
+(T)->common.owner == (P)->common.id)
/* Function prototypes */
BIF_RETTYPE db_get_trace_control_word(Process* p);
diff --git a/erts/emulator/beam/erl_debug.c b/erts/emulator/beam/erl_debug.c
index 22e873afc6..b90d00f236 100644
--- a/erts/emulator/beam/erl_debug.c
+++ b/erts/emulator/beam/erl_debug.c
@@ -252,16 +252,16 @@ void erts_check_stack(Process *p)
if (p->stop > stack_start)
erl_exit(1,
"<%lu.%lu.%lu>: Stack underflow\n",
- internal_pid_channel_no(p->id),
- internal_pid_number(p->id),
- internal_pid_serial(p->id));
+ internal_pid_channel_no(p->common.id),
+ internal_pid_number(p->common.id),
+ internal_pid_serial(p->common.id));
if (p->stop < stack_end)
erl_exit(1,
"<%lu.%lu.%lu>: Stack overflow\n",
- internal_pid_channel_no(p->id),
- internal_pid_number(p->id),
- internal_pid_serial(p->id));
+ internal_pid_channel_no(p->common.id),
+ internal_pid_number(p->common.id),
+ internal_pid_serial(p->common.id));
for (elemp = p->stop; elemp < stack_start; elemp++) {
int in_mbuf = 0;
@@ -284,9 +284,9 @@ void erts_check_stack(Process *p)
erl_exit(1,
"<%lu.%lu.%lu>: Wild stack pointer\n",
- internal_pid_channel_no(p->id),
- internal_pid_number(p->id),
- internal_pid_serial(p->id));
+ internal_pid_channel_no(p->common.id),
+ internal_pid_number(p->common.id),
+ internal_pid_serial(p->common.id));
}
}
@@ -387,16 +387,16 @@ void verify_process(Process *p)
#define VERIFY_AREA(name,ptr,sz) { \
int n = (sz); \
while (n--) if(!verify_eterm(p,*(ptr+n))) \
- erl_exit(1,"Wild pointer found in " name " of %T!\n",p->id); }
+ erl_exit(1,"Wild pointer found in " name " of %T!\n",p->common.id); }
#define VERIFY_ETERM(name,eterm) { \
if(!verify_eterm(p,eterm)) \
- erl_exit(1,"Wild pointer found in " name " of %T!\n",p->id); }
+ erl_exit(1,"Wild pointer found in " name " of %T!\n",p->common.id); }
ErlMessage* mp = p->msg.first;
- VERBOSE(DEBUG_MEMORY,("Verify process: %T...\n",p->id));
+ VERBOSE(DEBUG_MEMORY,("Verify process: %T...\n",p->common.id));
while (mp != NULL) {
VERIFY_ETERM("message term",ERL_MESSAGE_TERM(mp));
@@ -516,7 +516,7 @@ static void print_process_memory(Process *p)
ErlHeapFragment* bp = MBUF(p);
erts_printf("==============================\n");
- erts_printf("|| Memory info for %T ||\n",p->id);
+ erts_printf("|| Memory info for %T ||\n",p->common.id);
erts_printf("==============================\n");
erts_printf("-- %-*s ---%s-%s-%s-%s--\n",
@@ -601,7 +601,7 @@ void print_memory_info(Process *p)
{
if (p != NULL) {
erts_printf("======================================\n");
- erts_printf("|| Memory info for %-12T ||\n",p->id);
+ erts_printf("|| Memory info for %-12T ||\n",p->common.id);
erts_printf("======================================\n");
erts_printf("+- local heap ----%s-%s-%s-%s-+\n",
dashes,dashes,dashes,dashes);
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index 1ae9a211d7..d50ba364d0 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -85,12 +85,9 @@
#include "erl_drv_nif.h"
#include <stdlib.h>
-#include <string.h> /* ssize_t on Mac OS X */
+#include <sys/types.h> /* ssize_t */
-#if defined(VXWORKS)
-# include <ioLib.h>
-typedef struct iovec SysIOVec;
-#elif defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)
+#if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_)
#ifndef STATIC_ERLANG_DRIVER
/* Windows dynamic drivers, everything is different... */
#define ERL_DRIVER_TYPES_ONLY
@@ -136,7 +133,7 @@ typedef struct {
#define ERL_DRV_EXTENDED_MARKER (0xfeeeeeed)
#define ERL_DRV_EXTENDED_MAJOR_VERSION 2
-#define ERL_DRV_EXTENDED_MINOR_VERSION 0
+#define ERL_DRV_EXTENDED_MINOR_VERSION 1
/*
* The emulator will refuse to load a driver with different major
@@ -157,6 +154,7 @@ typedef struct {
#define ERL_DRV_FLAG_USE_PORT_LOCKING (1 << 0)
#define ERL_DRV_FLAG_SOFT_BUSY (1 << 1)
+#define ERL_DRV_FLAG_NO_BUSY_MSGQ (1 << 2)
/*
* Integer types
@@ -210,8 +208,8 @@ typedef struct erl_drv_binary {
typedef struct _erl_drv_data* ErlDrvData; /* Data to be used by the driver itself. */
#ifndef ERL_SYS_DRV
typedef struct _erl_drv_event* ErlDrvEvent; /* An event to be selected on. */
-typedef struct _erl_drv_port* ErlDrvPort; /* A port descriptor. */
#endif
+typedef struct _erl_drv_port* ErlDrvPort; /* A port descriptor. */
typedef struct _erl_drv_port* ErlDrvThreadData; /* Thread data. */
#if !defined(__WIN32__) && !defined(_WIN32) && !defined(_WIN32_) && !defined(USE_SELECT)
@@ -370,11 +368,7 @@ typedef struct erl_drv_entry {
/* For windows dynamic drivers */
#ifndef ERL_DRIVER_TYPES_ONLY
-#if defined(VXWORKS)
-# define DRIVER_INIT(DRIVER_NAME) \
- ErlDrvEntry* DRIVER_NAME ## _init(void); \
- ErlDrvEntry* DRIVER_NAME ## _init(void)
-#elif defined(__WIN32__)
+#if defined(__WIN32__)
# define DRIVER_INIT(DRIVER_NAME) \
__declspec(dllexport) ErlDrvEntry* driver_init(void); \
__declspec(dllexport) ErlDrvEntry* driver_init(void)
@@ -384,9 +378,18 @@ typedef struct erl_drv_entry {
ErlDrvEntry* driver_init(void)
#endif
+#define ERL_DRV_BUSY_MSGQ_DISABLED (~((ErlDrvSizeT) 0))
+#define ERL_DRV_BUSY_MSGQ_READ_ONLY ((ErlDrvSizeT) 0)
+#define ERL_DRV_BUSY_MSGQ_LIM_MAX (ERL_DRV_BUSY_MSGQ_DISABLED - 1)
+#define ERL_DRV_BUSY_MSGQ_LIM_MIN ((ErlDrvSizeT) 1)
+
/*
* These are the functions available for driver writers.
*/
+EXTERN void erl_drv_busy_msgq_limits(ErlDrvPort port,
+ ErlDrvSizeT *low,
+ ErlDrvSizeT *high);
+
EXTERN int driver_select(ErlDrvPort port, ErlDrvEvent event, int mode, int on);
EXTERN int driver_event(ErlDrvPort port, ErlDrvEvent event,
ErlDrvEventData event_data);
@@ -601,11 +604,33 @@ EXTERN ErlDrvPort driver_create_port(ErlDrvPort creator_port,
ErlDrvData drv_data);
+/*
+ * driver_output_term() is deprecated, and scheduled for removal in
+ * OTP-R17. Use erl_drv_output_term() instead. For more information
+ * see the erl_driver(3) documentation.
+ */
+EXTERN int driver_output_term(ErlDrvPort ix,
+ ErlDrvTermData* data,
+ int len) ERL_DRV_DEPRECATED_FUNC;
+/*
+ * driver_send_term() is deprecated, and scheduled for removal in
+ * OTP-R17. Use erl_drv_send_term() instead. For more information
+ * see the erl_driver(3) documentation.
+ */
+EXTERN int driver_send_term(ErlDrvPort ix,
+ ErlDrvTermData to,
+ ErlDrvTermData* data,
+ int len) ERL_DRV_DEPRECATED_FUNC;
+
/* output term data to the port owner */
-EXTERN int driver_output_term(ErlDrvPort ix, ErlDrvTermData* data, int len);
+EXTERN int erl_drv_output_term(ErlDrvTermData port,
+ ErlDrvTermData* data,
+ int len);
/* output term data to a specific process */
-EXTERN int driver_send_term(ErlDrvPort ix, ErlDrvTermData to,
- ErlDrvTermData* data, int len);
+EXTERN int erl_drv_send_term(ErlDrvTermData port,
+ ErlDrvTermData to,
+ ErlDrvTermData* data,
+ int len);
/* Async IO functions */
EXTERN long driver_async(ErlDrvPort ix,
diff --git a/erts/emulator/beam/erl_fun.h b/erts/emulator/beam/erl_fun.h
index 5c66a0bf73..b673ef6b3c 100644
--- a/erts/emulator/beam/erl_fun.h
+++ b/erts/emulator/beam/erl_fun.h
@@ -77,8 +77,6 @@ ErlFunEntry* erts_get_fun_entry(Eterm mod, int uniq, int index);
ErlFunEntry* erts_put_fun_entry2(Eterm mod, int old_uniq, int old_index,
byte* uniq, int index, int arity);
-ErlFunEntry* erts_get_fun_entry2(Eterm mod, int old_uniq, int old_index,
- byte* uniq, int index, int arity);
void erts_erase_fun_entry(ErlFunEntry* fe);
void erts_cleanup_funs(ErlFunThing* funp);
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index e2689f58c3..a33085315a 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -59,7 +59,7 @@ static Uint reclaimed; /* no of words reclaimed in GCs */
erts_fprintf(stderr, "htop=%p\n", (p)->htop); \
erts_fprintf(stderr, "heap=%p\n", (p)->heap); \
erl_exit(ERTS_ABORT_EXIT, "%s, line %d: %T: Overrun stack and heap\n", \
- __FILE__,__LINE__,(P)->id); \
+ __FILE__,__LINE__,(P)->common.id); \
}
#ifdef DEBUG
@@ -129,7 +129,7 @@ static void disallow_heap_frag_ref(Process* p, Eterm* n_htop, Eterm* objv, int n
#if defined(ARCH_64) && !HALFWORD_HEAP
# define MAX_HEAP_SIZES 154
#else
-# define MAX_HEAP_SIZES 55
+# define MAX_HEAP_SIZES 59
#endif
static Sint heap_sizes[MAX_HEAP_SIZES]; /* Suitable heap sizes. */
@@ -144,6 +144,7 @@ void
erts_init_gc(void)
{
int i = 0;
+ Sint max_heap_size = 0;
ASSERT(offsetof(ProcBin,thing_word) == offsetof(struct erl_off_heap_header,thing_word));
ASSERT(offsetof(ProcBin,thing_word) == offsetof(ErlFunThing,thing_word));
@@ -168,16 +169,30 @@ erts_init_gc(void)
* we really don't want that growth when the heaps are that big.
*/
- heap_sizes[0] = 34;
- heap_sizes[1] = 55;
- for (i = 2; i < 23; i++) {
- heap_sizes[i] = heap_sizes[i-1] + heap_sizes[i-2];
+ /* Growth stage 1 - Fibonacci + 1*/
+ /* 12,38 will hit size 233, the old default */
+
+ heap_sizes[0] = 12;
+ heap_sizes[1] = 38;
+
+ for(i = 2; i < 23; i++) {
+ /* one extra word for block header */
+ heap_sizes[i] = heap_sizes[i-1] + heap_sizes[i-2] + 1;
}
+
+ /* for 32 bit we want max_heap_size to be MAX(32bit) / 4 [words] (and halfword)
+ * for 64 bit we want max_heap_size to be MAX(52bit) / 8 [words]
+ */
+
+ max_heap_size = sizeof(Eterm) < 8 ? (Sint)((~(Uint)0)/(sizeof(Eterm))) :
+ (Sint)(((Uint64)1 << 53)/sizeof(Eterm));
+
+ /* Growth stage 2 - 20% growth */
/* At 1.3 mega words heap, we start to slow down. */
for (i = 23; i < ALENGTH(heap_sizes); i++) {
- heap_sizes[i] = 5*(heap_sizes[i-1]/4);
- if (heap_sizes[i] < 0) {
+ heap_sizes[i] = heap_sizes[i-1] + heap_sizes[i-1]/5;
+ if ((heap_sizes[i] < 0) || heap_sizes[i] > max_heap_size) {
/* Size turned negative. Discard this last size. */
i--;
break;
@@ -370,11 +385,7 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
trace_gc(p, am_gc_start);
}
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->gcstatus = p->status;
- p->status = P_GARBING;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
-
+ erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
if (erts_system_monitor_long_gc != 0) {
get_now(&ms1, &s1, &us1);
}
@@ -418,9 +429,8 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
ErtsGcQuickSanityCheck(p);
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->status = p->gcstatus;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
+
if (IS_TRACED_FL(p, F_TRACE_GC)) {
trace_gc(p, am_gc_end);
}
@@ -504,10 +514,7 @@ erts_garbage_collect_hibernate(Process* p)
/*
* Preliminaries.
*/
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->gcstatus = p->status;
- p->status = P_GARBING;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
ErtsGcQuickSanityCheck(p);
ASSERT(p->mbuf_sz == 0);
ASSERT(p->mbuf == 0);
@@ -618,9 +625,7 @@ erts_garbage_collect_hibernate(Process* p)
ErtsGcQuickSanityCheck(p);
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->status = p->gcstatus;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
}
@@ -644,10 +649,7 @@ erts_garbage_collect_literals(Process* p, Eterm* literals,
/*
* Set GC state.
*/
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->gcstatus = p->status;
- p->status = P_GARBING;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
/*
* We assume that the caller has already done a major collection
@@ -789,9 +791,7 @@ erts_garbage_collect_literals(Process* p, Eterm* literals,
/*
* Restore status.
*/
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->status = p->gcstatus;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
}
static int
@@ -883,14 +883,12 @@ minor_collection(Process* p, int need, Eterm* objv, int nobj, Uint *recl)
}
}
- if (wanted < MIN_HEAP_SIZE(p)) {
- wanted = MIN_HEAP_SIZE(p);
- } else {
- wanted = next_heap_size(p, wanted, 0);
- }
+ wanted = wanted < MIN_HEAP_SIZE(p) ? MIN_HEAP_SIZE(p)
+ : next_heap_size(p, wanted, 0);
if (wanted < HEAP_SIZE(p)) {
shrink_new_heap(p, wanted, objv, nobj);
}
+
ASSERT(HEAP_SIZE(p) == next_heap_size(p, HEAP_SIZE(p), 0));
return 1; /* We are done. */
}
@@ -1449,11 +1447,10 @@ adjust_after_fullsweep(Process *p, Uint size_before, int need, Eterm *objv, int
I think this is better as fullsweep is used mainly on
small memory systems, but I could be wrong... */
wanted = 2 * need_after;
- if (wanted < p->min_heap_size) {
- sz = p->min_heap_size;
- } else {
- sz = next_heap_size(p, wanted, 0);
- }
+
+ sz = wanted < p->min_heap_size ? p->min_heap_size
+ : next_heap_size(p, wanted, 0);
+
if (sz < HEAP_SIZE(p)) {
shrink_new_heap(p, sz, objv, nobj);
}
@@ -1961,9 +1958,9 @@ setup_rootset(Process *p, Eterm *objv, int nobj, Rootset *rootset)
n++;
}
#endif
- ASSERT(is_nil(p->tracer_proc) ||
- is_internal_pid(p->tracer_proc) ||
- is_internal_port(p->tracer_proc));
+ ASSERT(is_nil(ERTS_TRACER_PROC(p)) ||
+ is_internal_pid(ERTS_TRACER_PROC(p)) ||
+ is_internal_port(ERTS_TRACER_PROC(p)));
ASSERT(is_pid(follow_moved(p->group_leader)));
if (is_not_immed(p->group_leader)) {
diff --git a/erts/emulator/beam/erl_goodfit_alloc.c b/erts/emulator/beam/erl_goodfit_alloc.c
index e7d4ac2b67..f98d377fd6 100644
--- a/erts/emulator/beam/erl_goodfit_alloc.c
+++ b/erts/emulator/beam/erl_goodfit_alloc.c
@@ -205,7 +205,6 @@ erts_gfalc_start(GFAllctr_t *gfallctr,
init->sbmbct = 0; /* Small mbc not yet supported by goodfit */
- allctr->mbc_header_size = sizeof(Carrier_t);
allctr->min_mbc_size = MIN_MBC_SZ;
allctr->min_mbc_first_free_size = MIN_MBC_FIRST_FREE_SZ;
allctr->min_block_size = sizeof(GFFreeBlock_t);
@@ -363,7 +362,7 @@ search_bucket(Allctr_t *allctr, int ix, Uint size)
blk && i < max_blk_search;
blk = blk->next, i++) {
- blk_sz = BLK_SZ(blk);
+ blk_sz = MBC_FBLK_SZ(&blk->block_head);
blk_on_lambc = (((char *) blk) < gfallctr->last_aux_mbc_end
&& gfallctr->last_aux_mbc_start <= ((char *) blk));
@@ -402,7 +401,7 @@ get_free_block(Allctr_t *allctr, Uint size,
if (min_bi == unsafe_bi) {
blk = search_bucket(allctr, min_bi, size);
if (blk) {
- if (cand_blk && cand_size <= BLK_SZ(blk))
+ if (cand_blk && cand_size <= MBC_FBLK_SZ(blk))
return NULL; /* cand_blk was better */
unlink_free_block(allctr, blk, flags);
return blk;
@@ -422,7 +421,7 @@ get_free_block(Allctr_t *allctr, Uint size,
/* We are guaranteed to find a block that fits in this bucket */
blk = search_bucket(allctr, min_bi, size);
ASSERT(blk);
- if (cand_blk && cand_size <= BLK_SZ(blk))
+ if (cand_blk && cand_size <= MBC_FBLK_SZ(blk))
return NULL; /* cand_blk was better */
unlink_free_block(allctr, blk, flags);
return blk;
@@ -435,7 +434,7 @@ link_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
{
GFAllctr_t *gfallctr = (GFAllctr_t *) allctr;
GFFreeBlock_t *blk = (GFFreeBlock_t *) block;
- Uint sz = BLK_SZ(blk);
+ Uint sz = MBC_FBLK_SZ(&blk->block_head);
int i = BKT_IX(gfallctr, sz);
ASSERT(sz >= MIN_BLK_SZ);
@@ -456,7 +455,7 @@ unlink_free_block(Allctr_t *allctr, Block_t *block, Uint32 flags)
{
GFAllctr_t *gfallctr = (GFAllctr_t *) allctr;
GFFreeBlock_t *blk = (GFFreeBlock_t *) block;
- Uint sz = BLK_SZ(blk);
+ Uint sz = MBC_FBLK_SZ(&blk->block_head);
int i = BKT_IX(gfallctr, sz);
if (!blk->prev) {
@@ -618,7 +617,7 @@ check_block(Allctr_t *allctr, Block_t * blk, int free_block)
GFFreeBlock_t *fblk;
if(free_block) {
- Uint blk_sz = BLK_SZ(blk);
+ Uint blk_sz = is_sbc_blk(blk) ? SBC_BLK_SZ(blk) : MBC_BLK_SZ(blk);
bi = BKT_IX(gfallctr, blk_sz);
ASSERT(gfallctr->bucket_mask.main & (((UWord) 1) << IX2SMIX(bi)));
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 1eb3dba240..8cdf954dd2 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -44,6 +44,7 @@
#include "erl_thr_progress.h"
#include "erl_thr_queue.h"
#include "erl_async.h"
+#include "erl_ptab.h"
#ifdef HIPE
#include "hipe_mode_switch.h" /* for hipe_mode_switch_init() */
@@ -55,6 +56,66 @@
#endif
/*
+ * The variables below (prefixed with etp_) are for erts/etc/unix/etp-commands
+ * only. Do not remove even though they aren't used elsewhere in the emulator!
+ */
+#ifdef ERTS_SMP
+const int etp_smp_compiled = 1;
+#else
+const int etp_smp_compiled = 0;
+#endif
+#ifdef USE_THREADS
+const int etp_thread_compiled = 1;
+#else
+const int etp_thread_compiled = 0;
+#endif
+const char etp_erts_version[] = ERLANG_VERSION;
+const char etp_otp_release[] = ERLANG_OTP_RELEASE;
+const char etp_compile_date[] = ERLANG_COMPILE_DATE;
+const char etp_arch[] = ERLANG_ARCHITECTURE;
+#ifdef ERTS_ENABLE_KERNEL_POLL
+const int etp_kernel_poll_support = 1;
+#else
+const int etp_kernel_poll_support = 0;
+#endif
+#if defined(ARCH_64)
+const int etp_arch_bits = 64;
+#elif defined(ARCH_32)
+const int etp_arch_bits = 32;
+#else
+# error "Not 64-bit, nor 32-bit arch"
+#endif
+#if HALFWORD_HEAP
+const int etp_halfword = 1;
+#else
+const int etp_halfword = 0;
+#endif
+#ifdef HIPE
+const int etp_hipe = 1;
+#else
+const int etp_hipe = 0;
+#endif
+#ifdef DEBUG
+const int etp_debug_compiled = 1;
+#else
+const int etp_debug_compiled = 0;
+#endif
+#ifdef ERTS_ENABLE_LOCK_COUNT
+const int etp_lock_count = 1;
+#else
+const int etp_lock_count = 0;
+#endif
+#ifdef ERTS_ENABLE_LOCK_CHECK
+const int etp_lock_check = 1;
+#else
+const int etp_lock_check = 0;
+#endif
+#ifdef WORDS_BIGENDIAN
+const int etp_big_endian = 1;
+#else
+const int etp_big_endian = 0;
+#endif
+/*
* Note about VxWorks: All variables must be initialized by executable code,
* not by an initializer. Otherwise a new instance of the emulator will
* inherit previous values.
@@ -66,9 +127,10 @@ extern void ConNormalExit(void);
extern void ConWaitForExit(void);
#endif
-static void erl_init(int ncpu);
-
-#define ERTS_MIN_COMPAT_REL 7
+static void erl_init(int ncpu,
+ int proc_tab_sz,
+ int port_tab_sz,
+ int port_tab_sz_ignore_files);
static erts_atomic_t exiting;
@@ -151,8 +213,6 @@ ErtsModifiedTimings erts_modified_timings[] = {
Export *erts_delay_trap = NULL;
-int erts_use_r9_pids_ports;
-
int ignore_break;
int replace_intr;
@@ -216,12 +276,18 @@ void
erts_short_init(void)
{
int ncpu = early_init(NULL, NULL);
- erl_init(ncpu);
+ erl_init(ncpu,
+ ERTS_DEFAULT_MAX_PROCESSES,
+ ERTS_DEFAULT_MAX_PORTS,
+ 0);
erts_initialized = 1;
}
static void
-erl_init(int ncpu)
+erl_init(int ncpu,
+ int proc_tab_sz,
+ int port_tab_sz,
+ int port_tab_sz_ignore_files)
{
init_benchmarking();
@@ -229,7 +295,7 @@ erl_init(int ncpu)
erts_init_gc();
erts_init_time();
erts_init_sys_common_misc();
- erts_init_process(ncpu);
+ erts_init_process(ncpu, proc_tab_sz);
erts_init_scheduling(no_schedulers,
no_schedulers_online);
erts_init_cpu_topology(); /* Must be after init_scheduling */
@@ -241,6 +307,7 @@ erl_init(int ncpu)
erts_init_trace();
erts_init_binary();
erts_init_bits();
+ erts_code_ix_init();
erts_init_fun_table();
init_atom_table();
init_export_table();
@@ -250,6 +317,7 @@ erl_init(int ncpu)
erts_bif_info_init();
erts_ddll_init();
init_emulator();
+ erts_ptab_init(); /* Must be after init_emulator() */
erts_bp_init();
init_db(); /* Must be after init_emulator */
erts_bif_timer_init();
@@ -257,7 +325,7 @@ erl_init(int ncpu)
init_dist();
erl_drv_thr_init();
erts_init_async();
- init_io();
+ erts_init_io(port_tab_sz, port_tab_sz_ignore_files);
init_load();
erts_init_bif();
erts_init_bif_chksum();
@@ -289,7 +357,8 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
Eterm env;
start_mod = am_atom_put(modname, sys_strlen(modname));
- if (erts_find_function(start_mod, am_start, 2) == NULL) {
+ if (erts_find_function(start_mod, am_start, 2,
+ erts_active_code_ix()) == NULL) {
erl_exit(5, "No function %s:start/2\n", modname);
}
@@ -388,7 +457,7 @@ load_preloaded(void)
if ((code = sys_preload_begin(&preload_p[i])) == 0)
erl_exit(1, "Failed to find preloaded code for module %s\n",
name);
- res = erts_load_module(NULL, 0, NIL, &module_name, code, length);
+ res = erts_preload_module(NULL, 0, NIL, &module_name, code, length);
sys_preload_end(&preload_p[i]);
if (res != NIL)
erl_exit(1,"Failed loading preloaded module %s (%T)\n",
@@ -400,6 +469,7 @@ load_preloaded(void)
/* be helpful (or maybe downright rude:-) */
void erts_usage(void)
{
+ int this_rel = this_rel_num();
erts_fprintf(stderr, "Usage: %s [flags] [ -- [init_args] ]\n", progname(program));
erts_fprintf(stderr, "The flags are:\n\n");
@@ -433,16 +503,20 @@ void erts_usage(void)
/* erts_fprintf(stderr, "-i module set the boot module (default init)\n"); */
erts_fprintf(stderr, "-K boolean enable or disable kernel poll\n");
-
+ erts_fprintf(stderr, "-n[s|a|d] Control behavior of signals to ports\n");
+ erts_fprintf(stderr, " Note that this flag is deprecated!\n");
erts_fprintf(stderr, "-M<X> <Y> memory allocator switches,\n");
erts_fprintf(stderr, " see the erts_alloc(3) documentation for more info.\n");
erts_fprintf(stderr, "-P number set maximum number of processes on this node,\n");
erts_fprintf(stderr, " valid range is [%d-%d]\n",
- ERTS_MIN_PROCESSES, ERTS_MAX_PROCESSES);
+ ERTS_MIN_PROCESSES, ERTS_MAX_PROCESSES);
+ erts_fprintf(stderr, "-Q number set maximum number of ports on this node,\n");
+ erts_fprintf(stderr, " valid range is [%d-%d]\n",
+ ERTS_MIN_PORTS, ERTS_MAX_PORTS);
erts_fprintf(stderr, "-R number set compatibility release number,\n");
erts_fprintf(stderr, " valid range [%d-%d]\n",
- ERTS_MIN_COMPAT_REL, this_rel_num());
+ this_rel-2, this_rel);
erts_fprintf(stderr, "-r force ets memory block to be moved on realloc\n");
erts_fprintf(stderr, "-rg amount set reader groups limit\n");
@@ -462,6 +536,7 @@ void erts_usage(void)
erts_fprintf(stderr, " valid range is [%d-%d]\n",
ERTS_SCHED_THREAD_MIN_STACK_SIZE,
ERTS_SCHED_THREAD_MAX_STACK_SIZE);
+ erts_fprintf(stderr, "-spp Bool set port parallelism scheduling hint\n");
erts_fprintf(stderr, "-S n1:n2 set number of schedulers (n1), and number of\n");
erts_fprintf(stderr, " schedulers online (n2), valid range for both\n");
erts_fprintf(stderr, " numbers are [1-%d]\n",
@@ -583,8 +658,6 @@ early_init(int *argc, char **argv) /*
erts_compat_rel = this_rel_num();
- erts_use_r9_pids_ports = 0;
-
erts_sys_pre_init();
erts_atomic_init_nob(&exiting, 0);
#ifdef ERTS_SMP
@@ -839,11 +912,13 @@ erl_start(int argc, char **argv)
{
int i = 1;
char* arg=NULL;
- char* Parg = NULL;
int have_break_handler = 1;
char envbuf[21]; /* enough for any 64-bit integer */
size_t envbufsz;
int ncpu = early_init(&argc, argv);
+ int proc_tab_sz = ERTS_DEFAULT_MAX_PROCESSES;
+ int port_tab_sz = ERTS_DEFAULT_MAX_PORTS;
+ int port_tab_sz_ignore_files = 0;
envbufsz = sizeof(envbuf);
if (erts_sys_getenv_raw(ERL_MAX_ETS_TABLES_ENV, envbuf, &envbufsz) == 0)
@@ -914,6 +989,7 @@ erl_start(int argc, char **argv)
break;
case 'a':
erts_set_user_requested_filename_encoding(ERL_FILENAME_UNKNOWN);
+ break;
default:
erts_fprintf(stderr, "bad filename encoding %s, can be (l,u or a)\n", arg);
erts_usage();
@@ -1094,12 +1170,53 @@ erl_start(int argc, char **argv)
arg);
break;
- case 'P':
- /* set maximum number of processes */
- Parg = get_arg(argv[i]+2, argv[i+1], &i);
- erts_max_processes = atoi(Parg);
- /* Check of result is delayed until later. This is because +R
- may be given after +P. */
+ case 'n':
+ arg = get_arg(argv[i]+2, argv[i+1], &i);
+ switch (arg[0]) {
+ case 's': /* synchronous */
+ erts_port_synchronous_ops = 1;
+ erts_port_schedule_all_ops = 0;
+ break;
+ case 'a': /* asynchronous */
+ erts_port_synchronous_ops = 0;
+ erts_port_schedule_all_ops = 1;
+ break;
+ case 'd': /* Default - schedule on conflict (asynchronous) */
+ erts_port_synchronous_ops = 0;
+ erts_port_schedule_all_ops = 0;
+ break;
+ default:
+ bad_n_option:
+ erts_fprintf(stderr, "bad -n option %s\n", arg);
+ erts_usage();
+ }
+ if (arg[1] != '\0')
+ goto bad_n_option;
+ break;
+
+ case 'P': /* set maximum number of processes */
+ arg = get_arg(argv[i]+2, argv[i+1], &i);
+ errno = 0;
+ proc_tab_sz = strtol(arg, NULL, 10);
+ if (errno != 0
+ || proc_tab_sz < ERTS_MIN_PROCESSES
+ || ERTS_MAX_PROCESSES < proc_tab_sz) {
+ erts_fprintf(stderr, "bad number of processes %s\n", arg);
+ erts_usage();
+ }
+ break;
+
+ case 'Q': /* set maximum number of ports */
+ arg = get_arg(argv[i]+2, argv[i+1], &i);
+ errno = 0;
+ port_tab_sz = strtol(arg, NULL, 10);
+ if (errno != 0
+ || port_tab_sz < ERTS_MIN_PROCESSES
+ || ERTS_MAX_PROCESSES < port_tab_sz) {
+ erts_fprintf(stderr, "bad number of ports %s\n", arg);
+ erts_usage();
+ }
+ port_tab_sz_ignore_files = 1;
break;
case 'S' : /* Was handled in early_init() just read past it */
@@ -1201,6 +1318,19 @@ erl_start(int argc, char **argv)
erts_usage();
}
}
+ else if (has_prefix("pp", sub_param)) {
+ arg = get_arg(sub_param+2, argv[i+1], &i);
+ if (sys_strcmp(arg, "true") == 0)
+ erts_port_parallelism = 1;
+ else if (sys_strcmp(arg, "false") == 0)
+ erts_port_parallelism = 0;
+ else {
+ erts_fprintf(stderr,
+ "bad port parallelism scheduling hint %s\n",
+ arg);
+ erts_usage();
+ }
+ }
else if (sys_strcmp("nsp", sub_param) == 0)
erts_use_sender_punish = 0;
else if (sys_strcmp("wt", sub_param) == 0) {
@@ -1282,22 +1412,19 @@ erl_start(int argc, char **argv)
case 'R': {
/* set compatibility release */
+ int this_rel;
arg = get_arg(argv[i]+2, argv[i+1], &i);
erts_compat_rel = atoi(arg);
- if (erts_compat_rel < ERTS_MIN_COMPAT_REL
- || erts_compat_rel > this_rel_num()) {
+ this_rel = this_rel_num();
+ if (erts_compat_rel < this_rel - 2 || this_rel < erts_compat_rel) {
erts_fprintf(stderr, "bad compatibility release number %s\n", arg);
erts_usage();
}
- ASSERT(ERTS_MIN_COMPAT_REL >= 7);
switch (erts_compat_rel) {
- case 7:
- case 8:
- case 9:
- erts_use_r9_pids_ports = 1;
+ /* Currently no compat features... */
default:
break;
}
@@ -1339,8 +1466,6 @@ erl_start(int argc, char **argv)
}
break;
}
- case 'n': /* XXX obsolete */
- break;
case 'c':
if (argv[i][2] == 0) { /* -c: documented option */
erts_disable_tolerant_timeofday = 1;
@@ -1395,15 +1520,6 @@ erl_start(int argc, char **argv)
i++;
}
- /* Delayed check of +P flag */
- if (erts_max_processes < ERTS_MIN_PROCESSES
- || erts_max_processes > ERTS_MAX_PROCESSES
- || (erts_use_r9_pids_ports
- && erts_max_processes > ERTS_MAX_R9_PROCESSES)) {
- erts_fprintf(stderr, "bad number of processes %s\n", Parg);
- erts_usage();
- }
-
/* Restart will not reinstall the break handler */
#ifdef __WIN32__
if (ignore_break)
@@ -1424,9 +1540,14 @@ erl_start(int argc, char **argv)
boot_argc = argc - i; /* Number of arguments to init */
boot_argv = &argv[i];
- erl_init(ncpu);
+ erl_init(ncpu,
+ proc_tab_sz,
+ port_tab_sz,
+ port_tab_sz_ignore_files);
load_preloaded();
+ erts_end_staging_code_ix();
+ erts_commit_staging_code_ix();
erts_initialized = 1;
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index 1f388c1796..69bb4be717 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -82,8 +82,8 @@ static erts_lc_lock_order_t erts_lock_order[] = {
#ifdef ERTS_SMP
{ "bif_timers", NULL },
{ "reg_tab", NULL },
- { "migration_info_update", NULL },
{ "proc_main", "pid" },
+ { "old_code", "address" },
#ifdef HIPE
{ "hipe_mfait_lock", NULL },
#endif
@@ -93,8 +93,8 @@ static erts_lc_lock_order_t erts_lock_order[] = {
{ "proc_msgq", "pid" },
{ "dist_entry", "address" },
{ "dist_entry_links", "address" },
+ { "code_write_permission", NULL },
{ "proc_status", "pid" },
- { "proc_tab", NULL },
{ "ports_snapshot", NULL },
{ "meta_name_tab", "address" },
{ "meta_main_tab_slot", "address" },
@@ -114,9 +114,6 @@ static erts_lc_lock_order_t erts_lock_order[] = {
#if defined(ENABLE_CHILD_WAITER_THREAD) || defined(ERTS_SMP)
{ "child_status", NULL },
#endif
-#ifdef __WIN32__
- { "sys_driver_data_lock", NULL },
-#endif
{ "drv_ev_state_grow", NULL, },
{ "drv_ev_state", "address" },
{ "safe_hash", "address" },
@@ -124,7 +121,9 @@ static erts_lc_lock_order_t erts_lock_order[] = {
{ "removed_fd_pre_alloc_lock", "address" },
{ "state_prealloc", NULL },
{ "schdlr_sspnd", NULL },
+ { "migration_info_update", NULL },
{ "run_queue", "address" },
+ { "process_table", NULL },
{ "cpu_info", NULL },
{ "pollset", "address" },
#ifdef __WIN32__
@@ -155,12 +154,10 @@ static erts_lc_lock_order_t erts_lock_order[] = {
{ "pmmap", NULL },
#endif
#ifdef ERTS_SMP
+ { "port_sched_lock", "port_id" },
{ "port_task_pre_alloc_lock", "address" },
- { "port_taskq_pre_alloc_lock", "address" },
{ "proclist_pre_alloc_lock", "address" },
- { "port_tasks_lock", NULL },
- { "get_free_port", NULL },
- { "port_state", "address" },
+ { "port_table", NULL },
{ "xports_list_pre_alloc_lock", "address" },
{ "inet_buffer_stack_lock", NULL },
{ "gc_info", NULL },
@@ -245,6 +242,7 @@ typedef struct {
typedef struct erts_lc_locked_locks_t_ erts_lc_locked_locks_t;
struct erts_lc_locked_locks_t_ {
char *thread_name;
+ int emu_thread;
erts_tid_t tid;
erts_lc_locked_locks_t *next;
erts_lc_locked_locks_t *prev;
@@ -362,6 +360,7 @@ create_locked_locks(char *thread_name)
if (!l_lcks->thread_name)
lc_abort();
+ l_lcks->emu_thread = 0;
l_lcks->tid = erts_thr_self();
l_lcks->required.first = NULL;
l_lcks->required.last = NULL;
@@ -669,7 +668,7 @@ erts_lc_set_thread_name(char *thread_name)
{
erts_lc_locked_locks_t *l_lcks = get_my_locked_locks();
if (!l_lcks)
- (void) create_locked_locks(thread_name);
+ l_lcks = create_locked_locks(thread_name);
else {
ASSERT(l_lcks->thread_name);
free((void *) l_lcks->thread_name);
@@ -677,6 +676,14 @@ erts_lc_set_thread_name(char *thread_name)
if (!l_lcks->thread_name)
lc_abort();
}
+ l_lcks->emu_thread = 1;
+}
+
+int
+erts_lc_is_emu_thr(void)
+{
+ erts_lc_locked_locks_t *l_lcks = get_my_locked_locks();
+ return l_lcks->emu_thread;
}
int
diff --git a/erts/emulator/beam/erl_lock_check.h b/erts/emulator/beam/erl_lock_check.h
index df7b3758e1..068340abe7 100644
--- a/erts/emulator/beam/erl_lock_check.h
+++ b/erts/emulator/beam/erl_lock_check.h
@@ -102,6 +102,7 @@ void erts_lc_unrequire_lock_flg(erts_lc_lock_t *lck, Uint16 op_flags);
void erts_lc_require_lock(erts_lc_lock_t *lck);
void erts_lc_unrequire_lock(erts_lc_lock_t *lck);
+int erts_lc_is_emu_thr(void);
#define ERTS_LC_ASSERT(A) \
((void) (((A) || ERTS_SOMEONE_IS_CRASH_DUMPING) ? 1 : erts_lc_assert_failed(__FILE__, __LINE__, #A)))
diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c
index 919567ab27..325d77e911 100644
--- a/erts/emulator/beam/erl_message.c
+++ b/erts/emulator/beam/erl_message.c
@@ -296,36 +296,6 @@ erts_msg_distext2heap(Process *pp,
return THE_NON_VALUE;
}
-static ERTS_INLINE void
-notify_new_message(Process *receiver)
-{
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS
- & erts_proc_lc_my_proc_locks(receiver));
-
- switch (receiver->status) {
- case P_GARBING:
- switch (receiver->gcstatus) {
- case P_SUSPENDED:
- goto suspended;
- case P_WAITING:
- goto waiting;
- default:
- break;
- }
- break;
- case P_SUSPENDED:
- suspended:
- receiver->rstatus = P_RUNABLE;
- break;
- case P_WAITING:
- waiting:
- erts_add_to_runq(receiver);
- break;
- default:
- break;
- }
-}
-
void
erts_queue_dist_message(Process *rcvr,
ErtsProcLocks *rcvr_locks,
@@ -339,7 +309,7 @@ erts_queue_dist_message(Process *rcvr,
Sint tok_serial = 0;
#endif
#ifdef ERTS_SMP
- ErtsProcLocks need_locks;
+ erts_aint_t state;
#endif
ERTS_SMP_LC_ASSERT(*rcvr_locks == erts_proc_lc_my_proc_locks(rcvr));
@@ -347,20 +317,21 @@ erts_queue_dist_message(Process *rcvr,
mp = message_alloc();
#ifdef ERTS_SMP
- need_locks = ~(*rcvr_locks) & (ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
- if (need_locks) {
- *rcvr_locks |= need_locks;
- if (erts_smp_proc_trylock(rcvr, need_locks) == EBUSY) {
- if (need_locks == ERTS_PROC_LOCK_MSGQ) {
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ)) {
+ if (erts_smp_proc_trylock(rcvr, ERTS_PROC_LOCK_MSGQ) == EBUSY) {
+ ErtsProcLocks need_locks = ERTS_PROC_LOCK_MSGQ;
+ if (*rcvr_locks & ERTS_PROC_LOCK_STATUS) {
erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_STATUS);
- need_locks = (ERTS_PROC_LOCK_MSGQ
- | ERTS_PROC_LOCK_STATUS);
+ need_locks |= ERTS_PROC_LOCK_STATUS;
}
erts_smp_proc_lock(rcvr, need_locks);
}
}
- if (rcvr->is_exiting || ERTS_PROC_PENDING_EXIT(rcvr)) {
+ state = erts_smp_atomic32_read_acqb(&rcvr->state);
+ if (state & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) {
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ))
+ erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ);
/* Drop message if receiver is exiting or has a pending exit ... */
if (is_not_nil(token)) {
ErlHeapFragment *heap_frag;
@@ -376,6 +347,8 @@ erts_queue_dist_message(Process *rcvr,
/* Ahh... need to decode it in order to trace it... */
ErlHeapFragment *mbuf;
Eterm msg;
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ))
+ erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ);
message_free(mp);
msg = erts_msg_distext2heap(rcvr, rcvr_locks, &mbuf, &token, dist_ext);
if (is_value(msg))
@@ -437,26 +410,33 @@ erts_queue_dist_message(Process *rcvr,
mp->data.dist_ext = dist_ext;
LINK_MESSAGE(rcvr, mp);
- notify_new_message(rcvr);
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ))
+ erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ);
+
+ erts_proc_notify_new_message(rcvr);
}
}
/* Add a message last in message queue */
-void
-erts_queue_message(Process* receiver,
- ErtsProcLocks *receiver_locks,
- ErlHeapFragment* bp,
- Eterm message,
- Eterm seq_trace_token
+static Sint
+queue_message(Process *c_p,
+ Process* receiver,
+ ErtsProcLocks *receiver_locks,
+ erts_aint32_t *receiver_state,
+ ErlHeapFragment* bp,
+ Eterm message,
+ Eterm seq_trace_token
#ifdef USE_VM_PROBES
, Eterm dt_utag
#endif
-)
+ )
{
+ Sint res;
ErlMessage* mp;
-#ifdef ERTS_SMP
- ErtsProcLocks need_locks;
-#else
+ int locked_msgq = 0;
+ erts_aint_t state;
+
+#ifndef ERTS_SMP
ASSERT(bp != NULL || receiver->mbuf == NULL);
#endif
@@ -464,31 +444,45 @@ erts_queue_message(Process* receiver,
mp = message_alloc();
+ if (receiver_state)
+ state = *receiver_state;
+ else
+ state = erts_smp_atomic32_read_acqb(&receiver->state);
+
#ifdef ERTS_SMP
- need_locks = ~(*receiver_locks) & (ERTS_PROC_LOCK_MSGQ
- | ERTS_PROC_LOCK_STATUS);
- if (need_locks) {
- *receiver_locks |= need_locks;
- if (erts_smp_proc_trylock(receiver, need_locks) == EBUSY) {
- if (need_locks == ERTS_PROC_LOCK_MSGQ) {
+
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
+ goto exiting;
+
+ if (!(*receiver_locks & ERTS_PROC_LOCK_MSGQ)) {
+ if (erts_smp_proc_trylock(receiver, ERTS_PROC_LOCK_MSGQ) == EBUSY) {
+ ErtsProcLocks need_locks = ERTS_PROC_LOCK_MSGQ;
+ if (*receiver_locks & ERTS_PROC_LOCK_STATUS) {
erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_STATUS);
- need_locks = (ERTS_PROC_LOCK_MSGQ
- | ERTS_PROC_LOCK_STATUS);
+ need_locks |= ERTS_PROC_LOCK_STATUS;
}
erts_smp_proc_lock(receiver, need_locks);
}
+ locked_msgq = 1;
+ state = erts_smp_atomic32_read_nob(&receiver->state);
+ if (receiver_state)
+ *receiver_state = state;
}
- if (receiver->is_exiting || ERTS_PROC_PENDING_EXIT(receiver)) {
- /* Drop message if receiver is exiting or has a pending
- * exit ...
- */
+#endif
+
+ if (state & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) {
+#ifdef ERTS_SMP
+ exiting:
+#endif
+ /* Drop message if receiver is exiting or has a pending exit... */
+ if (locked_msgq)
+ erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MSGQ);
if (bp)
free_message_buffer(bp);
message_free(mp);
- return;
+ return 0;
}
-#endif
ERL_MESSAGE_TERM(mp) = message;
ERL_MESSAGE_TOKEN(mp) = seq_trace_token;
@@ -498,7 +492,10 @@ erts_queue_message(Process* receiver,
mp->next = NULL;
mp->data.heap_frag = bp;
-#ifdef ERTS_SMP
+#ifndef ERTS_SMP
+ res = receiver->msg.len;
+#else
+ res = receiver->msg_inq.len;
if (*receiver_locks & ERTS_PROC_LOCK_MAIN) {
/*
* We move 'in queue' to 'private queue' and place
@@ -508,15 +505,15 @@ erts_queue_message(Process* receiver,
* we don't need to include the 'in queue' in
* the root set when garbage collecting.
*/
+ res += receiver->msg.len;
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(receiver);
LINK_MESSAGE_PRIVQ(receiver, mp);
}
- else {
+ else
+#endif
+ {
LINK_MESSAGE(receiver, mp);
}
-#else
- LINK_MESSAGE(receiver, mp);
-#endif
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(message_queued)) {
@@ -536,15 +533,43 @@ erts_queue_message(Process* receiver,
tok_label, tok_lastcnt, tok_serial);
}
#endif
- notify_new_message(receiver);
- if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) {
+ if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE))
trace_receive(receiver, message);
- }
+
+ if (locked_msgq)
+ erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MSGQ);
+
+ erts_proc_notify_new_message(receiver);
#ifndef ERTS_SMP
ERTS_HOLE_CHECK(receiver);
#endif
+ return res;
+}
+
+void
+erts_queue_message(Process* receiver,
+ ErtsProcLocks *receiver_locks,
+ ErlHeapFragment* bp,
+ Eterm message,
+ Eterm seq_trace_token
+#ifdef USE_VM_PROBES
+ , Eterm dt_utag
+#endif
+ )
+{
+ queue_message(NULL,
+ receiver,
+ receiver_locks,
+ NULL,
+ bp,
+ message,
+ seq_trace_token
+#ifdef USE_VM_PROBES
+ , dt_utag
+#endif
+ );
}
void
@@ -576,9 +601,7 @@ erts_move_msg_mbuf_to_heap(Eterm** hpp, ErlOffHeap* off_heap, ErlMessage *msg)
#endif
#ifdef HARD_DEBUG
- ProcBin *dbg_mso_start = off_heap->mso;
- ErlFunThing *dbg_fun_start = off_heap->funs;
- ExternalThing *dbg_external_start = off_heap->externals;
+ struct erl_off_heap_header* dbg_oh_start = off_heap->first;
Eterm dbg_term, dbg_token;
ErlHeapFragment *dbg_bp;
Uint *dbg_hp, *dbg_thp_start;
@@ -752,48 +775,16 @@ copy_done:
int i, j;
ErlHeapFragment* frag;
{
- ProcBin *mso = off_heap->mso;
+ struct erl_off_heap_header* dbg_oh = off_heap->first;
i = j = 0;
- while (mso != dbg_mso_start) {
- mso = mso->next;
+ while (dbg_oh != dbg_oh_start) {
+ dbg_oh = dbg_oh->next;
i++;
}
for (frag=bp; frag; frag=frag->next) {
- mso = frag->off_heap.mso;
- while (mso) {
- mso = mso->next;
- j++;
- }
- }
- ASSERT(i == j);
- }
- {
- ErlFunThing *fun = off_heap->funs;
- i = j = 0;
- while (fun != dbg_fun_start) {
- fun = fun->next;
- i++;
- }
- for (frag=bp; frag; frag=frag->next) {
- fun = frag->off_heap.funs;
- while (fun) {
- fun = fun->next;
- j++;
- }
- }
- ASSERT(i == j);
- }
- {
- ExternalThing *external = off_heap->externals;
- i = j = 0;
- while (external != dbg_external_start) {
- external = external->next;
- i++;
- }
- for (frag=bp; frag; frag=frag->next) {
- external = frag->off_heap.externals;
- while (external) {
- external = external->next;
+ dbg_oh = frag->off_heap.first;
+ while (dbg_oh) {
+ dbg_oh = dbg_oh->next;
j++;
}
}
@@ -878,7 +869,7 @@ erts_move_msg_attached_data_to_heap(Eterm **hpp, ErlOffHeap *ohp, ErlMessage *ms
* Send a local message when sender & receiver processes are known.
*/
-void
+Sint
erts_send_message(Process* sender,
Process* receiver,
ErtsProcLocks *receiver_locks,
@@ -888,6 +879,7 @@ erts_send_message(Process* sender,
Uint msize;
ErlHeapFragment* bp = NULL;
Eterm token = NIL;
+ Sint res = 0;
#ifdef USE_VM_PROBES
DTRACE_CHARBUF(sender_name, 64);
DTRACE_CHARBUF(receiver_name, 64);
@@ -902,8 +894,8 @@ erts_send_message(Process* sender,
#ifdef USE_VM_PROBES
*sender_name = *receiver_name = '\0';
if (DTRACE_ENABLED(message_send)) {
- erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), "%T", sender->id);
- erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), "%T", receiver->id);
+ erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), "%T", sender->common.id);
+ erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), "%T", receiver->common.id);
}
#endif
if (SEQ_TRACE_TOKEN(sender) != NIL && !(flags & ERTS_SND_FLG_NO_SEQ_TRACE)) {
@@ -925,7 +917,7 @@ erts_send_message(Process* sender,
seq_trace_update_send(sender);
seq_trace_output(stoken, message, SEQ_TRACE_SEND,
- receiver->id, sender);
+ receiver->common.id, sender);
seq_trace_size = 6; /* TUPLE5 */
#ifdef USE_VM_PROBES
}
@@ -956,7 +948,7 @@ erts_send_message(Process* sender,
#ifdef DTRACE_TAG_HARDDEBUG
erts_fprintf(stderr,
"Dtrace -> (%T) Spreading tag (%T) with "
- "message %T!\r\n",sender->id, utag, message);
+ "message %T!\r\n",sender->common.id, utag, message);
#endif
}
#endif
@@ -974,15 +966,17 @@ erts_send_message(Process* sender,
msize, tok_label, tok_lastcnt, tok_serial);
}
#endif
- erts_queue_message(receiver,
- receiver_locks,
- bp,
- message,
- token
+ res = queue_message(NULL,
+ receiver,
+ receiver_locks,
+ NULL,
+ bp,
+ message,
+ token
#ifdef USE_VM_PROBES
- , utag
+ , utag
#endif
- );
+ );
BM_SWAP_TIMER(send,system);
} else if (sender == receiver) {
/* Drop message if receiver has a pending exit ... */
@@ -1026,31 +1020,45 @@ erts_send_message(Process* sender,
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(receiver);
LINK_MESSAGE_PRIVQ(receiver, mp);
+ res = receiver->msg.len;
+
if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) {
trace_receive(receiver, message);
}
}
BM_SWAP_TIMER(send,system);
- return;
} else {
#ifdef ERTS_SMP
ErlOffHeap *ohp;
Eterm *hp;
+ erts_aint32_t state;
+
BM_SWAP_TIMER(send,size);
msize = size_object(message);
BM_SWAP_TIMER(size,send);
- hp = erts_alloc_message_heap(msize,&bp,&ohp,receiver,receiver_locks);
+ hp = erts_alloc_message_heap_state(msize,
+ &bp,
+ &ohp,
+ receiver,
+ receiver_locks,
+ &state);
BM_SWAP_TIMER(send,copy);
message = copy_struct(message, msize, &hp, ohp);
BM_MESSAGE_COPIED(msz);
BM_SWAP_TIMER(copy,send);
DTRACE6(message_send, sender_name, receiver_name,
msize, tok_label, tok_lastcnt, tok_serial);
- erts_queue_message(receiver, receiver_locks, bp, message, token
+ res = queue_message(sender,
+ receiver,
+ receiver_locks,
+ &state,
+ bp,
+ message,
+ token
#ifdef USE_VM_PROBES
- , NIL
+ , NIL
#endif
- );
+ );
BM_SWAP_TIMER(send,system);
#else
ErlMessage* mp = message_alloc();
@@ -1080,19 +1088,16 @@ erts_send_message(Process* sender,
mp->next = NULL;
mp->data.attached = NULL;
LINK_MESSAGE(receiver, mp);
+ res = receiver->msg.len;
+ erts_proc_notify_new_message(receiver);
- if (receiver->status == P_WAITING) {
- erts_add_to_runq(receiver);
- } else if (receiver->status == P_SUSPENDED) {
- receiver->rstatus = P_RUNABLE;
- }
if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) {
trace_receive(receiver, message);
}
BM_SWAP_TIMER(send,system);
#endif /* #ifndef ERTS_SMP */
- return;
}
+ return res;
}
/*
@@ -1131,7 +1136,7 @@ erts_deliver_exit_message(Eterm from, Process *to, ErtsProcLocks *to_locksp,
save = TUPLE3(hp, am_EXIT, from_copy, mess);
hp += 4;
/* the trace token must in this case be updated by the caller */
- seq_trace_output(token, save, SEQ_TRACE_SEND, to->id, NULL);
+ seq_trace_output(token, save, SEQ_TRACE_SEND, to->common.id, NULL);
temptoken = copy_struct(token, sz_token, &hp, &bp->off_heap);
erts_queue_message(to, to_locksp, bp, save, temptoken
#ifdef USE_VM_PROBES
diff --git a/erts/emulator/beam/erl_message.h b/erts/emulator/beam/erl_message.h
index 3e9a24ee81..771eba431f 100644
--- a/erts/emulator/beam/erl_message.h
+++ b/erts/emulator/beam/erl_message.h
@@ -90,7 +90,7 @@ typedef struct {
ErlMessage* first;
ErlMessage** last; /* point to the last next pointer */
ErlMessage** save;
- int len; /* queue length */
+ Sint len; /* queue length */
/*
* The following two fields are used by the recv_mark/1 and
@@ -105,7 +105,7 @@ typedef struct {
typedef struct {
ErlMessage* first;
ErlMessage** last; /* point to the last next pointer */
- int len; /* queue length */
+ Sint len; /* queue length */
} ErlMessageInQueue;
#endif
@@ -125,16 +125,16 @@ typedef struct {
#ifdef ERTS_SMP
/* Move in message queue to end of private message queue */
-#define ERTS_SMP_MSGQ_MV_INQ2PRIVQ(P) \
-do { \
- if ((P)->msg_inq.first) { \
- *(P)->msg.last = (P)->msg_inq.first; \
- (P)->msg.last = (P)->msg_inq.last; \
- (P)->msg.len += (P)->msg_inq.len; \
- (P)->msg_inq.first = NULL; \
- (P)->msg_inq.last = &(P)->msg_inq.first; \
- (P)->msg_inq.len = 0; \
- } \
+#define ERTS_SMP_MSGQ_MV_INQ2PRIVQ(P) \
+do { \
+ if ((P)->msg_inq.first) { \
+ *(P)->msg.last = (P)->msg_inq.first; \
+ (P)->msg.last = (P)->msg_inq.last; \
+ (P)->msg.len += (P)->msg_inq.len; \
+ (P)->msg_inq.first = NULL; \
+ (P)->msg_inq.last = &(P)->msg_inq.first; \
+ (P)->msg_inq.len = 0; \
+ } \
} while (0)
/* Add message last in message queue */
@@ -234,7 +234,7 @@ void erts_queue_message(Process*, ErtsProcLocks*, ErlHeapFragment*, Eterm, Eterm
#endif
);
void erts_deliver_exit_message(Eterm, Process*, ErtsProcLocks *, Eterm, Eterm);
-void erts_send_message(Process*, Process*, ErtsProcLocks*, Eterm, unsigned);
+Sint erts_send_message(Process*, Process*, ErtsProcLocks*, Eterm, unsigned);
void erts_link_mbuf_to_proc(Process *proc, ErlHeapFragment *bp);
void erts_move_msg_mbuf_to_heap(Eterm**, ErlOffHeap*, ErlMessage *);
@@ -245,6 +245,9 @@ void erts_move_msg_attached_data_to_heap(Eterm **, ErlOffHeap *, ErlMessage *);
Eterm erts_msg_distext2heap(Process *, ErtsProcLocks *, ErlHeapFragment **,
Eterm *, ErtsDistExternal *);
+void erts_cleanup_offheap(ErlOffHeap *offheap);
+
+
ERTS_GLB_INLINE Uint erts_msg_used_frag_sz(const ErlMessage *msg);
ERTS_GLB_INLINE Uint erts_msg_attached_data_size(ErlMessage *msg);
diff --git a/erts/emulator/beam/erl_monitors.c b/erts/emulator/beam/erl_monitors.c
index 1a84950120..63175c44d6 100644
--- a/erts/emulator/beam/erl_monitors.c
+++ b/erts/emulator/beam/erl_monitors.c
@@ -971,7 +971,7 @@ Eterm erts_debug_dump_monitors_1(BIF_ALIST_1)
}
} else {
erts_printf("Dumping pid monitors--------------------\n");
- erts_dump_monitors(rp->monitors,0);
+ erts_dump_monitors(ERTS_P_MONITORS(rp),0);
erts_printf("Monitors dumped-------------------------\n");
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
BIF_RET(am_true);
@@ -985,12 +985,15 @@ Eterm erts_debug_dump_links_1(BIF_ALIST_1)
Process *rp;
DistEntry *dep;
if (is_internal_port(pid)) {
- Port *rport = erts_id2port(pid, p, ERTS_PROC_LOCK_MAIN);
+ Port *rport = erts_id2port_sflgs(pid,
+ p,
+ ERTS_PROC_LOCK_MAIN,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP);
if (rport) {
erts_printf("Dumping port links----------------------\n");
- erts_dump_links(rport->nlinks,0);
+ erts_dump_links(ERTS_P_LINKS(rport), 0);
erts_printf("Links dumped----------------------------\n");
- erts_smp_port_unlock(rport);
+ erts_port_release(rport);
BIF_RET(am_true);
} else {
BIF_ERROR(p,BADARG);
@@ -1014,7 +1017,7 @@ Eterm erts_debug_dump_links_1(BIF_ALIST_1)
} else {
erts_printf("Dumping pid links-----------------------\n");
- erts_dump_links(rp->nlinks,0);
+ erts_dump_links(ERTS_P_LINKS(rp), 0);
erts_printf("Links dumped----------------------------\n");
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
BIF_RET(am_true);
diff --git a/erts/emulator/beam/erl_monitors.h b/erts/emulator/beam/erl_monitors.h
index d3f6d410dd..a7fa4e0145 100644
--- a/erts/emulator/beam/erl_monitors.h
+++ b/erts/emulator/beam/erl_monitors.h
@@ -137,8 +137,6 @@ typedef struct erts_suspend_monitor {
#define ERTS_LINK_ROOT(Linkp) ((Linkp)->shared.root)
#define ERTS_LINK_REFC(Linkp) ((Linkp)->shared.refc)
-#define ERTS_LINK_ROOT_AS_UINT(Linkp) (*((Uint *) &((Linkp)->root)))
-
Uint erts_tot_link_lh_size(void);
diff --git a/erts/emulator/beam/erl_mtrace.c b/erts/emulator/beam/erl_mtrace.c
index 358c67bf20..5a6fb8589f 100644
--- a/erts/emulator/beam/erl_mtrace.c
+++ b/erts/emulator/beam/erl_mtrace.c
@@ -611,7 +611,7 @@ void erts_mtrace_init(char *receiver, char *nodename)
if (erts_sock_gethostname(hostname, MAXHOSTNAMELEN) != 0)
hostname[0] = '\0';
hostname[MAXHOSTNAMELEN-1] = '\0';
- sys_get_pid(pid);
+ sys_get_pid(pid, sizeof(pid));
write_trace_header(nodename ? nodename : "", pid, hostname);
erts_mtrace_update_heap_size();
}
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 4109c20fa7..1bd2d933b2 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -263,7 +263,7 @@ ErlNifEnv* enif_alloc_env(void)
HEAP_LIMIT(&msg_env->phony_proc) = phony_heap;
HEAP_END(&msg_env->phony_proc) = phony_heap;
MBUF(&msg_env->phony_proc) = NULL;
- msg_env->phony_proc.id = ERTS_INVALID_PID;
+ msg_env->phony_proc.common.id = ERTS_INVALID_PID;
#ifdef FORCE_HEAP_FRAGS
msg_env->phony_proc.space_verified = 0;
msg_env->phony_proc.space_verified_from = NULL;
@@ -287,7 +287,7 @@ void enif_clear_env(ErlNifEnv* env)
struct enif_msg_environment_t* menv = (struct enif_msg_environment_t*)env;
Process* p = &menv->phony_proc;
ASSERT(p == menv->env.proc);
- ASSERT(p->id == ERTS_INVALID_PID);
+ ASSERT(p->common.id == ERTS_INVALID_PID);
ASSERT(MBUF(p) == menv->env.heap_frag);
if (MBUF(p) != NULL) {
erts_cleanup_offheap(&MSO(p));
@@ -315,10 +315,11 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
#endif
Eterm receiver = to_pid->pid;
int flush_me = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
if (env != NULL) {
c_p = env->proc;
- if (receiver == c_p->id) {
+ if (receiver == c_p->common.id) {
rp_locks = ERTS_PROC_LOCK_MAIN;
flush_me = 1;
}
@@ -334,10 +335,13 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP)
rp_had_locks = rp_locks;
#endif
- rp = erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
- receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC);
+
+ rp = (scheduler
+ ? erts_proc_lookup(receiver)
+ : erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
+ receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC));
if (rp == NULL) {
- ASSERT(env == NULL || receiver != c_p->id);
+ ASSERT(env == NULL || receiver != c_p->common.id);
return 0;
}
flush_env(msg_env);
@@ -362,12 +366,12 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
, NIL
#endif
);
- if (rp_locks) {
- ERTS_SMP_LC_ASSERT(rp_locks == (rp_had_locks | (ERTS_PROC_LOCK_MSGQ |
- ERTS_PROC_LOCK_STATUS)));
- erts_smp_proc_unlock(rp, (ERTS_PROC_LOCK_MSGQ | ERTS_PROC_LOCK_STATUS));
- }
- erts_smp_proc_dec_refc(rp);
+ if (c_p == rp)
+ rp_locks &= ~ERTS_PROC_LOCK_MAIN;
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
if (flush_me) {
cache_env(env);
}
@@ -393,7 +397,7 @@ static int is_offheap(const ErlOffHeap* oh)
ErlNifPid* enif_self(ErlNifEnv* caller_env, ErlNifPid* pid)
{
- pid->pid = caller_env->proc->id;
+ pid->pid = caller_env->proc->common.id;
return pid;
}
int enif_get_local_pid(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifPid* pid)
@@ -501,7 +505,7 @@ int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin)
{
struct enif_tmp_obj_t* tobj;
ErtsAlcType_t allocator;
- Uint sz;
+ ErlDrvSizeT sz;
if (is_binary(term)) {
return enif_inspect_binary(env,term,bin);
}
@@ -527,7 +531,7 @@ int enif_inspect_iolist_as_binary(ErlNifEnv* env, Eterm term, ErlNifBinary* bin)
bin->size = sz;
bin->bin_term = THE_NON_VALUE;
bin->ref_bin = NULL;
- io_list_to_buf(term, (char*) bin->data, sz);
+ erts_iolist_to_buf(term, (char*) bin->data, sz);
ADD_READONLY_CHECK(env, bin->data, bin->size);
return 1;
}
@@ -1392,6 +1396,44 @@ size_t enif_sizeof_resource(void* obj)
return ERTS_MAGIC_BIN_DATA_SIZE(bin) - offsetof(ErlNifResource,data);
}
+
+void* enif_dlopen(const char* lib,
+ void (*err_handler)(void*,const char*), void* err_arg)
+{
+ ErtsSysDdllError errdesc = ERTS_SYS_DDLL_ERROR_INIT;
+ void* handle;
+ void* init_func;
+ if (erts_sys_ddll_open2(lib, &handle, &errdesc) == ERL_DE_NO_ERROR) {
+ if (erts_sys_ddll_load_nif_init(handle, &init_func, &errdesc) == ERL_DE_NO_ERROR) {
+ erts_sys_ddll_call_nif_init(init_func);
+ }
+ }
+ else {
+ if (err_handler != NULL) {
+ (*err_handler)(err_arg, errdesc.str);
+ }
+ handle = NULL;
+ }
+ erts_sys_ddll_free_error(&errdesc);
+ return handle;
+}
+
+void* enif_dlsym(void* handle, const char* symbol,
+ void (*err_handler)(void*,const char*), void* err_arg)
+{
+ ErtsSysDdllError errdesc = ERTS_SYS_DDLL_ERROR_INIT;
+ void* ret;
+ if (erts_sys_ddll_sym2(handle, symbol, &ret, &errdesc) != ERL_DE_NO_ERROR) {
+ if (err_handler != NULL) {
+ (*err_handler)(err_arg, errdesc.str);
+ }
+ erts_sys_ddll_free_error(&errdesc);
+ return NULL;
+ }
+ return ret;
+}
+
+
/***************************************************************************
** load_nif/2 **
***************************************************************************/
@@ -1524,6 +1566,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
if (len < 0) {
BIF_ERROR(BIF_P, BADARG);
}
+
lib_name = (char *) erts_alloc(ERTS_ALC_T_TMP, len + 1);
if (intlist_to_buf(BIF_ARG_1, lib_name, len) != len) {
@@ -1532,6 +1575,12 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
}
lib_name[len] = '\0';
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ erts_free(ERTS_ALC_T_TMP, lib_name);
+ ERTS_BIF_YIELD2(bif_export[BIF_load_nif_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
+
/* Block system (is this the right place to do it?) */
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
@@ -1545,11 +1594,11 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
ASSERT(caller != NULL);
mod_atom = caller[0];
ASSERT(is_atom(mod_atom));
- mod=erts_get_module(mod_atom);
+ mod=erts_get_module(mod_atom, erts_active_code_ix());
ASSERT(mod != NULL);
- if (!in_area(caller, mod->code, mod->code_length)) {
- ASSERT(in_area(caller, mod->old_code, mod->old_code_length));
+ if (!in_area(caller, mod->curr.code, mod->curr.code_length)) {
+ ASSERT(in_area(caller, mod->old.code, mod->old.code_length));
ret = load_nif_error(BIF_P, "old_code", "Calling load_nif from old "
"module '%T' not allowed", mod_atom);
@@ -1595,7 +1644,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
BeamInstr** code_pp;
ErlNifFunc* f = &entry->funcs[i];
if (!erts_atom_get(f->name, sys_strlen(f->name), &f_atom)
- || (code_pp = get_func_pp(mod->code, f_atom, f->arity))==NULL) {
+ || (code_pp = get_func_pp(mod->curr.code, f_atom, f->arity))==NULL) {
ret = load_nif_error(BIF_P,bad_lib,"Function not found %T:%s/%u",
mod_atom, f->name, f->arity);
}
@@ -1624,18 +1673,18 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
erts_refc_init(&lib->rt_dtor_cnt, 0);
lib->mod = mod;
env.mod_nif = lib;
- if (mod->nif != NULL) { /* Reload */
+ if (mod->curr.nif != NULL) { /* Reload */
int k;
- lib->priv_data = mod->nif->priv_data;
+ lib->priv_data = mod->curr.nif->priv_data;
- ASSERT(mod->nif->entry != NULL);
+ ASSERT(mod->curr.nif->entry != NULL);
if (entry->reload == NULL) {
ret = load_nif_error(BIF_P,reload,"Reload not supported by this NIF library.");
goto error;
}
/* Check that no NIF is removed */
- for (k=0; k < mod->nif->entry->num_of_funcs; k++) {
- ErlNifFunc* old_func = &mod->nif->entry->funcs[k];
+ for (k=0; k < mod->curr.nif->entry->num_of_funcs; k++) {
+ ErlNifFunc* old_func = &mod->curr.nif->entry->funcs[k];
for (i=0; i < entry->num_of_funcs; i++) {
if (old_func->arity == entry->funcs[i].arity
&& sys_strcmp(old_func->name, entry->funcs[i].name) == 0) {
@@ -1656,24 +1705,24 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
ret = load_nif_error(BIF_P, reload, "Library reload-call unsuccessful.");
}
else {
- mod->nif->entry = NULL; /* to prevent 'unload' callback */
- erts_unload_nif(mod->nif);
+ mod->curr.nif->entry = NULL; /* to prevent 'unload' callback */
+ erts_unload_nif(mod->curr.nif);
reload_warning = 1;
}
}
else {
lib->priv_data = NULL;
- if (mod->old_nif != NULL) { /* Upgrade */
- void* prev_old_data = mod->old_nif->priv_data;
+ if (mod->old.nif != NULL) { /* Upgrade */
+ void* prev_old_data = mod->old.nif->priv_data;
if (entry->upgrade == NULL) {
ret = load_nif_error(BIF_P, upgrade, "Upgrade not supported by this NIF library.");
goto error;
}
erts_pre_nif(&env, BIF_P, lib);
- veto = entry->upgrade(&env, &lib->priv_data, &mod->old_nif->priv_data, BIF_ARG_2);
+ veto = entry->upgrade(&env, &lib->priv_data, &mod->old.nif->priv_data, BIF_ARG_2);
erts_post_nif(&env);
if (veto) {
- mod->old_nif->priv_data = prev_old_data;
+ mod->old.nif->priv_data = prev_old_data;
ret = load_nif_error(BIF_P, upgrade, "Library upgrade-call unsuccessful.");
}
/*else if (mod->old_nif->priv_data != prev_old_data) {
@@ -1693,20 +1742,21 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
/*
** Everything ok, patch the beam code with op_call_nif
*/
- mod->nif = lib;
+ mod->curr.nif = lib;
for (i=0; i < entry->num_of_funcs; i++)
{
BeamInstr* code_ptr;
erts_atom_get(entry->funcs[i].name, sys_strlen(entry->funcs[i].name), &f_atom);
- code_ptr = *get_func_pp(mod->code, f_atom, entry->funcs[i].arity);
+ code_ptr = *get_func_pp(mod->curr.code, f_atom, entry->funcs[i].arity);
if (code_ptr[1] == 0) {
code_ptr[5+0] = (BeamInstr) BeamOp(op_call_nif);
}
else { /* Function traced, patch the original instruction word */
- BpData** bps = (BpData**) code_ptr[1];
- BpData* bp = (BpData*) bps[erts_bp_sched2ix()];
- bp->orig_instr = (BeamInstr) BeamOp(op_call_nif);
+ GenericBp* g = (GenericBp *) code_ptr[1];
+ ASSERT(code_ptr[5+0] ==
+ (BeamInstr) BeamOp(op_i_generic_breakpoint));
+ g->orig_instr = (BeamInstr) BeamOp(op_call_nif);
}
code_ptr[5+1] = (BeamInstr) entry->funcs[i].fptr;
code_ptr[5+2] = (BeamInstr) lib;
@@ -1726,6 +1776,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
erts_free(ERTS_ALC_T_TMP, lib_name);
if (reload_warning) {
@@ -1793,7 +1844,7 @@ void erl_nif_init()
#ifdef USE_VM_PROBES
void dtrace_nifenv_str(ErlNifEnv *env, char *process_buf)
{
- dtrace_pid_str(env->proc->id, process_buf);
+ dtrace_pid_str(env->proc->common.id, process_buf);
}
#endif
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 50f99c90c4..93e56332e1 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -187,11 +187,7 @@ extern TWinDynNifCallbacks WinDynNifCallbacks;
#else
# define ERL_NIF_INIT_GLOB
# define ERL_NIF_INIT_BODY
-# if defined(VXWORKS)
-# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* MODNAME ## _init(void)
-# else
-# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* nif_init(void)
-# endif
+# define ERL_NIF_INIT_DECL(MODNAME) ErlNifEntry* nif_init(void)
#endif
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index 6396af09d0..51ff1eaa48 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -138,6 +138,8 @@ ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_make_uint64,(ErlNifEnv*, ErlNifUInt64));
ERL_NIF_API_FUNC_DECL(int,enif_is_exception,(ErlNifEnv*, ERL_NIF_TERM term));
ERL_NIF_API_FUNC_DECL(int,enif_make_reverse_list,(ErlNifEnv*, ERL_NIF_TERM term, ERL_NIF_TERM *list));
ERL_NIF_API_FUNC_DECL(int,enif_is_number,(ErlNifEnv*, ERL_NIF_TERM term));
+ERL_NIF_API_FUNC_DECL(void*,enif_dlopen,(const char* lib, void (*err_handler)(void*,const char*), void* err_arg));
+ERL_NIF_API_FUNC_DECL(void*,enif_dlsym,(void* handle, const char* symbol, void (*err_handler)(void*,const char*), void* err_arg));
/*
** Add new entries here to keep compatibility on Windows!!!
@@ -260,6 +262,8 @@ ERL_NIF_API_FUNC_DECL(int,enif_is_number,(ErlNifEnv*, ERL_NIF_TERM term));
# define enif_is_exception ERL_NIF_API_FUNC_MACRO(enif_is_exception)
# define enif_make_reverse_list ERL_NIF_API_FUNC_MACRO(enif_make_reverse_list)
# define enif_is_number ERL_NIF_API_FUNC_MACRO(enif_is_number)
+# define enif_dlopen ERL_NIF_API_FUNC_MACRO(enif_dlopen)
+# define enif_dlsym ERL_NIF_API_FUNC_MACRO(enif_dlsym)
/*
** Add new entries here
diff --git a/erts/emulator/beam/erl_node_container_utils.h b/erts/emulator/beam/erl_node_container_utils.h
index 329a2204cc..667bda255b 100644
--- a/erts/emulator/beam/erl_node_container_utils.h
+++ b/erts/emulator/beam/erl_node_container_utils.h
@@ -20,7 +20,7 @@
#ifndef ERL_NODE_CONTAINER_UTILS_H__
#define ERL_NODE_CONTAINER_UTILS_H__
-#include "erl_term.h"
+#include "erl_ptab.h"
/*
* Note regarding node containers:
@@ -29,9 +29,6 @@
* the emulator) for the Erlang data types that contain a reference
* to a node, i.e. pids, ports, and references.
*
- * Observe! The layouts of the node container data types have been
- * changed in R9.
- *
* Node containers are divided into internal and external node containers.
* An internal node container refer to the current incarnation of the
* node which it reside on. An external node container refer to
@@ -52,13 +49,6 @@
* reference is a boxed data type. An internal node container have an
* implicit reference to the 'erts_this_node' element in the node table.
*
- * Due to the R9 changes in layouts of node containers there are room to
- * store more data than previously. Today (R9) this extra space is unused,
- * but it is planned to be used in the future. For example only 18 bits
- * are used for data in a pid but there is room for 28 bits of data (on a
- * 32-bit machine). Some preparations have been made in the emulator for
- * usage of this extra space.
- *
* OBSERVE! Pids doesn't use fixed size 'serial' and 'number' fields any
* more. Previously the 15 bit 'number' field of a pid was used as index
* into the process table, and the 3 bit 'serial' field was used as a
@@ -104,8 +94,6 @@
#define internal_dist_entry(x) (erts_this_node->dist_entry)
#define external_dist_entry(x) (external_node((x))->dist_entry)
-extern int erts_use_r9_pids_ports;
-
/*
* For this node (and previous incarnations of this node), 0 is used as
* channel no. For other nodes, the atom index of the atom corresponding
@@ -128,8 +116,20 @@ extern int erts_use_r9_pids_ports;
* Pids *
\* */
-#define internal_pid_index(x) (internal_pid_data((x)) \
- & erts_process_tab_index_mask)
+extern ErtsPTab erts_proc;
+
+#define make_internal_pid(D) erts_ptab_make_id(&erts_proc, \
+ (D), \
+ _TAG_IMMED1_PID)
+
+#define internal_pid_index(PID) (ASSERT_EXPR(is_internal_pid((PID))), \
+ erts_ptab_id2pix(&erts_proc, (PID)))
+
+#define internal_pid_data(PID) (ASSERT_EXPR(is_internal_pid((PID))), \
+ erts_ptab_id2data(&erts_proc, (PID)))
+
+#define internal_pid_number(x) _GET_PID_NUM(internal_pid_data((x)))
+#define internal_pid_serial(x) _GET_PID_SER(internal_pid_data((x)))
#define internal_pid_node_name(x) (internal_pid_node((x))->sysname)
#define external_pid_node_name(x) (external_pid_node((x))->sysname)
@@ -169,34 +169,37 @@ extern int erts_use_r9_pids_ports;
|| is_external_pid((x)))
#define is_not_pid(x) (!is_pid(x))
-#define ERTS_MAX_R9_PROCESSES (1 << ERTS_R9_PROC_BITS)
-
/*
* Maximum number of processes. We want the number to fit in a SMALL on
* 32-bit CPU.
*/
-#define ERTS_MAX_PROCESSES ((SWORD_CONSTANT(1) << 27)-1)
-#if (ERTS_MAX_PROCESSES > MAX_SMALL)
-# error "The maximum number of processes must fit in a SMALL."
-#endif
-
+#define ERTS_MAX_PROCESSES (ERTS_PTAB_MAX_SIZE-1)
#define ERTS_MAX_PID_DATA ((1 << _PID_DATA_SIZE) - 1)
#define ERTS_MAX_PID_NUMBER ((1 << _PID_NUM_SIZE) - 1)
#define ERTS_MAX_PID_SERIAL ((1 << _PID_SER_SIZE) - 1)
-#define ERTS_MAX_PID_R9_SERIAL ((1 << _PID_R9_SER_SIZE) - 1)
-#define ERTS_R9_PROC_BITS (_PID_R9_SER_SIZE + _PID_NUM_SIZE)
#define ERTS_PROC_BITS (_PID_SER_SIZE + _PID_NUM_SIZE)
-#define ERTS_INVALID_PID make_internal_pid(ERTS_MAX_PID_DATA)
+#define ERTS_INVALID_PID ERTS_PTAB_INVALID_ID(_TAG_IMMED1_PID)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Ports *
\* */
-#define internal_port_index(x) (internal_port_data((x)) \
- & erts_port_tab_index_mask)
+extern ErtsPTab erts_port;
+
+#define make_internal_port(D) erts_ptab_make_id(&erts_port, \
+ (D), \
+ _TAG_IMMED1_PORT)
+
+#define internal_port_index(PRT) (ASSERT_EXPR(is_internal_port((PRT))), \
+ erts_ptab_id2pix(&erts_port, (PRT)))
+
+#define internal_port_data(PRT) (ASSERT_EXPR(is_internal_port((PRT))), \
+ erts_ptab_id2data(&erts_port, (PRT)))
+
+#define internal_port_number(x) _GET_PORT_NUM(internal_port_data((x)))
#define internal_port_node_name(x) (internal_port_node((x))->sysname)
#define external_port_node_name(x) (external_port_node((x))->sysname)
@@ -235,18 +238,18 @@ extern int erts_use_r9_pids_ports;
#define is_not_port(x) (!is_port(x))
/* Highest port-ID part in a term of type Port
- Not necessarily the same as the variable erts_max_ports
+ Not necessarily the same as current maximum port table size
which defines the maximum number of simultaneous Ports
in the Erlang node. ERTS_MAX_PORTS is a hard upper limit.
*/
-#define ERTS_MAX_R9_PORTS (1 << ERTS_R9_PORTS_BITS)
-#define ERTS_MAX_PORTS (1 << ERTS_PORTS_BITS)
-
+#define ERTS_MAX_PORTS (ERTS_PTAB_MAX_SIZE-1)
#define ERTS_MAX_PORT_DATA ((1 << _PORT_DATA_SIZE) - 1)
#define ERTS_MAX_PORT_NUMBER ((1 << _PORT_NUM_SIZE) - 1)
-#define ERTS_R9_PORTS_BITS (_PORT_R9_NUM_SIZE)
#define ERTS_PORTS_BITS (_PORT_NUM_SIZE)
+
+#define ERTS_INVALID_PORT ERTS_PTAB_INVALID_ID(_TAG_IMMED1_PORT)
+
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Refs *
\* */
diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c
index 5574cb0ac4..ebfba065d1 100644
--- a/erts/emulator/beam/erl_node_tables.c
+++ b/erts/emulator/beam/erl_node_tables.c
@@ -116,8 +116,7 @@ dist_table_alloc(void *dep_tmpl)
dep->qsize = 0;
dep->out_queue.first = NULL;
dep->out_queue.last = NULL;
- dep->suspended.first = NULL;
- dep->suspended.last = NULL;
+ dep->suspended = NULL;
dep->finalized_out_queue.first = NULL;
dep->finalized_out_queue.last = NULL;
@@ -769,8 +768,7 @@ void erts_init_node_tables(void)
erts_this_dist_entry->qsize = 0;
erts_this_dist_entry->out_queue.first = NULL;
erts_this_dist_entry->out_queue.last = NULL;
- erts_this_dist_entry->suspended.first = NULL;
- erts_this_dist_entry->suspended.last = NULL;
+ erts_this_dist_entry->suspended = NULL;
erts_this_dist_entry->finalized_out_queue.first = NULL;
erts_this_dist_entry->finalized_out_queue.last = NULL;
@@ -1268,7 +1266,7 @@ setup_reference_table(void)
ErlHeapFragment *hfp;
DistEntry *dep;
HashInfo hi;
- int i;
+ int i, max;
DeclareTmpHeapNoproc(heap,3);
inserted_bins = NULL;
@@ -1297,22 +1295,24 @@ setup_reference_table(void)
UnUseTmpHeapNoproc(3);
+ max = erts_ptab_max(&erts_proc);
/* Insert all processes */
- for (i = 0; i < erts_max_processes; i++)
- if (process_tab[i]) {
+ for (i = 0; i < max; i++) {
+ Process *proc = erts_pix2proc(i);
+ if (proc) {
ErlMessage *msg;
/* Insert Heap */
- insert_offheap(&(process_tab[i]->off_heap),
+ insert_offheap(&(proc->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->common.id);
/* Insert message buffers */
- for(hfp = process_tab[i]->mbuf; hfp; hfp = hfp->next)
+ for(hfp = proc->mbuf; hfp; hfp = hfp->next)
insert_offheap(&(hfp->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->common.id);
/* Insert msg msg buffers */
- for (msg = process_tab[i]->msg.first; msg; msg = msg->next) {
+ for (msg = proc->msg.first; msg; msg = msg->next) {
ErlHeapFragment *heap_frag = NULL;
if (msg->data.attached) {
if (is_value(ERL_MESSAGE_TERM(msg)))
@@ -1320,7 +1320,7 @@ setup_reference_table(void)
else {
if (msg->data.dist_ext->dep)
insert_dist_entry(msg->data.dist_ext->dep,
- HEAP_REF, process_tab[i]->id, 0);
+ HEAP_REF, proc->common.id, 0);
if (is_not_nil(ERL_MESSAGE_TOKEN(msg)))
heap_frag = erts_dist_ext_trailer(msg->data.dist_ext);
}
@@ -1328,10 +1328,10 @@ setup_reference_table(void)
if (heap_frag)
insert_offheap(&(heap_frag->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->common.id);
}
#ifdef ERTS_SMP
- for (msg = process_tab[i]->msg_inq.first; msg; msg = msg->next) {
+ for (msg = proc->msg_inq.first; msg; msg = msg->next) {
ErlHeapFragment *heap_frag = NULL;
if (msg->data.attached) {
if (is_value(ERL_MESSAGE_TERM(msg)))
@@ -1339,7 +1339,7 @@ setup_reference_table(void)
else {
if (msg->data.dist_ext->dep)
insert_dist_entry(msg->data.dist_ext->dep,
- HEAP_REF, process_tab[i]->id, 0);
+ HEAP_REF, proc->common.id, 0);
if (is_not_nil(ERL_MESSAGE_TOKEN(msg)))
heap_frag = erts_dist_ext_trailer(msg->data.dist_ext);
}
@@ -1347,42 +1347,55 @@ setup_reference_table(void)
if (heap_frag)
insert_offheap(&(heap_frag->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->common.id);
}
#endif
/* Insert links */
- if(process_tab[i]->nlinks)
- insert_links(process_tab[i]->nlinks, process_tab[i]->id);
- if(process_tab[i]->monitors)
- insert_monitors(process_tab[i]->monitors, process_tab[i]->id);
+ if (ERTS_P_LINKS(proc))
+ insert_links(ERTS_P_LINKS(proc), proc->common.id);
+ if (ERTS_P_MONITORS(proc))
+ insert_monitors(ERTS_P_MONITORS(proc), proc->common.id);
/* Insert controller */
{
- DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(process_tab[i]);
+ DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc);
if (dep)
- insert_dist_entry(dep, CTRL_REF, process_tab[i]->id, 0);
+ insert_dist_entry(dep, CTRL_REF, proc->common.id, 0);
}
}
+ }
#ifdef ERTS_SMP
erts_foreach_sys_msg_in_q(insert_sys_msg);
#endif
/* Insert all ports */
- for (i = 0; i < erts_max_ports; i++) {
- if (erts_port[i].status & ERTS_PORT_SFLGS_DEAD)
+ max = erts_ptab_max(&erts_port);
+ for (i = 0; i < max; i++) {
+ erts_aint32_t state;
+ Port *prt;
+
+ prt = erts_pix2port(i);
+ if (!prt)
+ continue;
+
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & ERTS_PORT_SFLGS_DEAD)
continue;
/* Insert links */
- if(erts_port[i].nlinks)
- insert_links(erts_port[i].nlinks, erts_port[i].id);
+ if (ERTS_P_LINKS(prt))
+ insert_links(ERTS_P_LINKS(prt), prt->common.id);
+ /* Insert monitors */
+ if (ERTS_P_MONITORS(prt))
+ insert_monitors(ERTS_P_MONITORS(prt), prt->common.id);
/* Insert port data */
- for(hfp = erts_port[i].bp; hfp; hfp = hfp->next)
- insert_offheap(&(hfp->off_heap), HEAP_REF, erts_port[i].id);
+ for(hfp = prt->bp; hfp; hfp = hfp->next)
+ insert_offheap(&(hfp->off_heap), HEAP_REF, prt->common.id);
/* Insert controller */
- if (erts_port[i].dist_entry)
- insert_dist_entry(erts_port[i].dist_entry,
+ if (prt->dist_entry)
+ insert_dist_entry(prt->dist_entry,
CTRL_REF,
- erts_port[i].id,
+ prt->common.id,
0);
}
diff --git a/erts/emulator/beam/erl_node_tables.h b/erts/emulator/beam/erl_node_tables.h
index 4a015bdef9..af60071ea5 100644
--- a/erts/emulator/beam/erl_node_tables.h
+++ b/erts/emulator/beam/erl_node_tables.h
@@ -84,10 +84,6 @@ typedef struct {
} ErtsDistOutputQueue;
struct ErtsProcList_;
-typedef struct {
- struct ErtsProcList_ *first;
- struct ErtsProcList_ *last;
-} ErtsDistSuspended;
/*
* Lock order:
@@ -100,7 +96,6 @@ typedef struct {
*/
struct erl_link;
-struct port;
typedef struct dist_entry_ {
HashBucket hash_bucket; /* Hash bucket */
@@ -135,13 +130,13 @@ typedef struct dist_entry_ {
Uint32 qflgs;
Sint qsize;
ErtsDistOutputQueue out_queue;
- ErtsDistSuspended suspended;
+ struct ErtsProcList_ *suspended;
ErtsDistOutputQueue finalized_out_queue;
erts_smp_atomic_t dist_cmd_scheduled;
ErtsPortTaskHandle dist_cmd;
- Uint (*send)(struct port *prt, ErtsDistOutputBuf *obuf);
+ Uint (*send)(Port *prt, ErtsDistOutputBuf *obuf);
struct cache* cache; /* The atom cache */
} DistEntry;
diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h
new file mode 100644
index 0000000000..fb07f3d5bc
--- /dev/null
+++ b/erts/emulator/beam/erl_port.h
@@ -0,0 +1,944 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifndef ERL_PORT_TYPE__
+#define ERL_PORT_TYPE__
+typedef struct _erl_drv_port Port;
+typedef struct ErtsProc2PortSigData_ ErtsProc2PortSigData;
+#endif
+
+#if !defined(ERL_PORT_H__) && !defined(ERL_PORT_GET_PORT_TYPE_ONLY__)
+#define ERL_PORT_H__
+
+#include "erl_port_task.h"
+#include "erl_ptab.h"
+#include "erl_thr_progress.h"
+#include "erl_trace.h"
+
+#define ERTS_DEFAULT_MAX_PORTS (1 << 16)
+#define ERTS_MIN_PORTS 1024
+
+extern int erts_port_synchronous_ops;
+extern int erts_port_schedule_all_ops;
+extern int erts_port_parallelism;
+
+typedef struct erts_driver_t_ erts_driver_t;
+
+#define ERTS_INVALID_ERL_DRV_PORT ((ErlDrvPort) (SWord) -1)
+#define SMALL_IO_QUEUE 5 /* Number of fixed elements */
+
+typedef struct {
+ ErlDrvSizeT size; /* total size in bytes */
+
+ SysIOVec* v_start;
+ SysIOVec* v_end;
+ SysIOVec* v_head;
+ SysIOVec* v_tail;
+ SysIOVec v_small[SMALL_IO_QUEUE];
+
+ ErlDrvBinary** b_start;
+ ErlDrvBinary** b_end;
+ ErlDrvBinary** b_head;
+ ErlDrvBinary** b_tail;
+ ErlDrvBinary* b_small[SMALL_IO_QUEUE];
+} ErlIOQueue;
+
+typedef struct line_buf { /* Buffer used in line oriented I/O */
+ ErlDrvSizeT bufsiz; /* Size of character buffer */
+ ErlDrvSizeT ovlen; /* Length of overflow data */
+ ErlDrvSizeT ovsiz; /* Actual size of overflow buffer */
+ char data[1]; /* Starting point of buffer data,
+ data[0] is a flag indicating an unprocess CR,
+ The rest is the overflow buffer. */
+} LineBuf;
+
+/*
+ * Items part of erlang:port_info/1 result. Note am_registered_name
+ * *need* to be first.
+ */
+
+#define ERTS_PORT_INFO_1_ITEMS \
+ { am_registered_name, /* Needs to be first */ \
+ am_name, \
+ am_links, \
+ am_id, \
+ am_connected, \
+ am_input, \
+ am_output, \
+ am_os_pid }
+
+/*
+ * Port Specific Data.
+ *
+ * Only use PrtSD for very rarely used data.
+ */
+
+#define ERTS_PRTSD_SCHED_ID 0
+
+#define ERTS_PRTSD_SIZE 1
+
+typedef struct {
+ void *data[ERTS_PRTSD_SIZE];
+} ErtsPrtSD;
+
+#ifdef ERTS_SMP
+typedef struct ErtsXPortsList_ ErtsXPortsList;
+#endif
+
+/*
+ * Port locking:
+ *
+ * Locking is done either driver specific or port specific. When
+ * driver specific locking is used, all instances of the driver,
+ * i.e. ports running the driver, share the same lock. When port
+ * specific locking is used each instance have its own lock.
+ *
+ * Most fields in the Port structure are protected by the lock
+ * referred to by the 'lock' field. This lock is shared between
+ * all ports running the same driver when driver specific locking
+ * is used.
+ *
+ * The 'sched' field is protected by the run queue lock that the
+ * port currently is assigned to.
+ *
+ */
+
+struct _erl_drv_port {
+ ErtsPTabElementCommon common; /* *Need* to be first in struct */
+
+ ErtsPortTaskSched sched;
+ ErtsPortTaskHandle timeout_task;
+#ifdef ERTS_SMP
+ erts_mtx_t *lock;
+ ErtsXPortsList *xports;
+ erts_smp_atomic_t run_queue;
+#else
+ erts_atomic32_t refc;
+ int cleanup;
+#endif
+ erts_atomic_t connected; /* A connected process */
+ Eterm caller; /* Current caller. */
+ Eterm data; /* Data associated with port. */
+ ErlHeapFragment* bp; /* Heap fragment holding data (NULL if imm data). */
+ Uint bytes_in; /* Number of bytes read */
+ Uint bytes_out; /* Number of bytes written */
+
+ ErlIOQueue ioq; /* driver accessible i/o queue */
+ DistEntry *dist_entry; /* Dist entry used in DISTRIBUTION */
+ char *name; /* String used in the open */
+ erts_driver_t* drv_ptr;
+ UWord drv_data;
+ SWord os_pid; /* Child process ID */
+ ErtsProcList *suspended; /* List of suspended processes. */
+ LineBuf *linebuf; /* Buffer to hold data not ready for
+ process to get (line oriented I/O)*/
+ erts_atomic32_t state; /* Status and type flags */
+ int control_flags; /* Flags for port_control() */
+ ErlDrvPDL port_data_lock;
+
+ ErtsPrtSD *psd; /* Port specific data */
+};
+
+#define ERTS_PORT_GET_CONNECTED(PRT) \
+ ((Eterm) erts_atomic_read_nob(&(PRT)->connected))
+#define ERTS_PORT_SET_CONNECTED(PRT, PID) \
+ erts_atomic_set_relb(&(PRT)->connected, (erts_aint_t) (PID))
+#define ERTS_PORT_INIT_CONNECTED(PRT, PID) \
+ erts_atomic_init_nob(&(PRT)->connected, (erts_aint_t) (PID))
+
+
+struct erl_drv_port_data_lock {
+ erts_mtx_t mtx;
+ erts_atomic_t refc;
+ Port *prt;
+};
+
+ERTS_GLB_INLINE ErtsRunQueue *erts_port_runq(Port *prt);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE ErtsRunQueue *
+erts_port_runq(Port *prt)
+{
+#ifdef ERTS_SMP
+ ErtsRunQueue *rq1, *rq2;
+ rq1 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue);
+ if (!rq1)
+ return NULL;
+ while (1) {
+ erts_smp_runq_lock(rq1);
+ rq2 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue);
+ if (rq1 == rq2)
+ return rq1;
+ erts_smp_runq_unlock(rq1);
+ rq1 = rq2;
+ if (!rq1)
+ return NULL;
+ }
+#else
+ return ERTS_RUNQ_IX(0);
+#endif
+}
+
+#endif
+
+
+ERTS_GLB_INLINE void *erts_prtsd_get(Port *p, int ix);
+ERTS_GLB_INLINE void *erts_prtsd_set(Port *p, int ix, void *new);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void *
+erts_prtsd_get(Port *prt, int ix)
+{
+ return prt->psd ? prt->psd->data[ix] : NULL;
+}
+
+ERTS_GLB_INLINE void *
+erts_prtsd_set(Port *prt, int ix, void *data)
+{
+ if (prt->psd) {
+ void *old = prt->psd->data[ix];
+ prt->psd->data[ix] = data;
+ return old;
+ }
+ else {
+ prt->psd = erts_alloc(ERTS_ALC_T_PRTSD, sizeof(ErtsPrtSD));
+ prt->psd->data[ix] = data;
+ return NULL;
+ }
+}
+
+#endif
+
+extern erts_smp_atomic_t erts_bytes_out; /* no bytes written out */
+extern erts_smp_atomic_t erts_bytes_in; /* no bytes sent into the system */
+
+
+/* port status flags */
+
+#define ERTS_PORT_SFLG_CONNECTED ((Uint32) (1 << 0))
+/* Port have begun exiting */
+#define ERTS_PORT_SFLG_EXITING ((Uint32) (1 << 1))
+/* Distribution port */
+#define ERTS_PORT_SFLG_DISTRIBUTION ((Uint32) (1 << 2))
+#define ERTS_PORT_SFLG_BINARY_IO ((Uint32) (1 << 3))
+#define ERTS_PORT_SFLG_SOFT_EOF ((Uint32) (1 << 4))
+/* Flow control */
+/* Port is closing (no i/o accepted) */
+#define ERTS_PORT_SFLG_CLOSING ((Uint32) (1 << 5))
+/* Send a closed message when terminating */
+#define ERTS_PORT_SFLG_SEND_CLOSED ((Uint32) (1 << 6))
+/* Line orinted io on port */
+#define ERTS_PORT_SFLG_LINEBUF_IO ((Uint32) (1 << 7))
+/* Immortal port (only certain system ports) */
+#define ERTS_PORT_SFLG_FREE ((Uint32) (1 << 8))
+#define ERTS_PORT_SFLG_INITIALIZING ((Uint32) (1 << 9))
+/* Port uses port specific locking (opposed to driver specific locking) */
+#define ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK ((Uint32) (1 << 10))
+#define ERTS_PORT_SFLG_INVALID ((Uint32) (1 << 11))
+/* Last port to terminate halts the emulator */
+#define ERTS_PORT_SFLG_HALT ((Uint32) (1 << 12))
+#ifdef DEBUG
+/* Only debug: make sure all flags aren't cleared unintentionally */
+#define ERTS_PORT_SFLG_PORT_DEBUG ((Uint32) (1 << 31))
+#endif
+
+/* Combinations of port status flags */
+#define ERTS_PORT_SFLGS_DEAD \
+ (ERTS_PORT_SFLG_FREE | ERTS_PORT_SFLG_INITIALIZING)
+#define ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \
+ (ERTS_PORT_SFLGS_DEAD | ERTS_PORT_SFLG_INVALID)
+#define ERTS_PORT_SFLGS_INVALID_LOOKUP \
+ (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \
+ | ERTS_PORT_SFLG_EXITING \
+ | ERTS_PORT_SFLG_CLOSING)
+#define ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP \
+ (ERTS_PORT_SFLGS_INVALID_LOOKUP \
+ | ERTS_PORT_SFLG_DISTRIBUTION)
+
+
+/*
+ * Costs in reductions for some port operations.
+ */
+#define ERTS_PORT_REDS_EXECUTE 10
+#define ERTS_PORT_REDS_FREE 100
+#define ERTS_PORT_REDS_TIMEOUT 400
+#define ERTS_PORT_REDS_INPUT 400
+#define ERTS_PORT_REDS_OUTPUT 400
+#define ERTS_PORT_REDS_EVENT 400
+#define ERTS_PORT_REDS_CMD_OUTPUTV 400
+#define ERTS_PORT_REDS_CMD_OUTPUT 400
+#define ERTS_PORT_REDS_EXIT 300
+#define ERTS_PORT_REDS_CONNECT 40
+#define ERTS_PORT_REDS_UNLINK 40
+#define ERTS_PORT_REDS_LINK 40
+#define ERTS_PORT_REDS_BADSIG 40
+#define ERTS_PORT_REDS_CONTROL 400
+#define ERTS_PORT_REDS_CALL 400
+#define ERTS_PORT_REDS_INFO 100
+#define ERTS_PORT_REDS_SET_DATA 40
+#define ERTS_PORT_REDS_GET_DATA 40
+#define ERTS_PORT_REDS_TERMINATE 200
+
+void print_port_info(Port *, int, void *);
+void erts_port_free(Port *);
+#ifndef ERTS_SMP
+void erts_port_cleanup(Port *);
+#endif
+void erts_fire_port_monitor(Port *prt, Eterm ref);
+#ifdef ERTS_SMP
+int erts_port_handle_xports(Port *);
+#endif
+
+#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
+int erts_lc_is_port_locked(Port *);
+#endif
+
+ERTS_GLB_INLINE void erts_port_inc_refc(Port *prt);
+ERTS_GLB_INLINE void erts_port_dec_refc(Port *prt);
+ERTS_GLB_INLINE void erts_port_add_refc(Port *prt, Sint32 add_refc);
+
+ERTS_GLB_INLINE int erts_smp_port_trylock(Port *prt);
+ERTS_GLB_INLINE void erts_smp_port_lock(Port *prt);
+ERTS_GLB_INLINE void erts_smp_port_unlock(Port *prt);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void erts_port_inc_refc(Port *prt)
+{
+#ifdef ERTS_SMP
+ erts_ptab_inc_refc(&prt->common);
+#else
+ erts_atomic32_inc_nob(&prt->refc);
+#endif
+}
+
+ERTS_GLB_INLINE void erts_port_dec_refc(Port *prt)
+{
+#ifdef ERTS_SMP
+ int referred = erts_ptab_dec_test_refc(&prt->common);
+ if (!referred)
+ erts_port_free(prt);
+#else
+ int refc = erts_atomic32_dec_read_nob(&prt->refc);
+ if (refc == 0)
+ erts_port_free(prt);
+#endif
+}
+
+ERTS_GLB_INLINE void erts_port_add_refc(Port *prt, Sint32 add_refc)
+{
+#ifdef ERTS_SMP
+ int referred = erts_ptab_add_test_refc(&prt->common, add_refc);
+ if (!referred)
+ erts_port_free(prt);
+#else
+ int refc = erts_atomic32_add_read_nob(&prt->refc, add_refc);
+ if (refc == 0)
+ erts_port_free(prt);
+#endif
+}
+
+ERTS_GLB_INLINE int
+erts_smp_port_trylock(Port *prt)
+{
+#ifdef ERTS_SMP
+ /* *Need* to be a managed thread */
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread());
+ return erts_mtx_trylock(prt->lock);
+#else
+ return 0;
+#endif
+}
+
+ERTS_GLB_INLINE void
+erts_smp_port_lock(Port *prt)
+{
+#ifdef ERTS_SMP
+ /* *Need* to be a managed thread */
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread());
+ erts_mtx_lock(prt->lock);
+#endif
+}
+
+ERTS_GLB_INLINE void
+erts_smp_port_unlock(Port *prt)
+{
+#ifdef ERTS_SMP
+ /* *Need* to be a managed thread */
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread());
+ erts_mtx_unlock(prt->lock);
+#endif
+}
+
+#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+
+#define ERTS_INVALID_PORT_OPT(PP, ID, FLGS) \
+ (!(PP) \
+ || (erts_atomic32_read_nob(&(PP)->state) & (FLGS)) \
+ || (PP)->common.id != (ID))
+
+/* port lookup */
+
+#define INVALID_PORT(PP, ID) \
+ ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_LOOKUP)
+
+/* Invalidate trace port if anything suspicious, for instance
+ * that the port is a distribution port or it is busy.
+ */
+#define INVALID_TRACER_PORT(PP, ID) \
+ ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP)
+
+#define ERTS_PORT_SCHED_ID(P, ID) \
+ ((Uint) (UWord) erts_prtsd_set((P), ERTS_PSD_SCHED_ID, (void *) (UWord) (ID)))
+
+extern const Port erts_invalid_port;
+#define ERTS_PORT_LOCK_BUSY ((Port *) &erts_invalid_port)
+
+int erts_is_port_ioq_empty(Port *);
+void erts_terminate_port(Port *);
+
+#ifdef ERTS_SMP
+Port *erts_de2port(DistEntry *, Process *, ErtsProcLocks);
+#endif
+
+ERTS_GLB_INLINE Port *erts_pix2port(int);
+ERTS_GLB_INLINE Port *erts_port_lookup_raw(Eterm);
+ERTS_GLB_INLINE Port *erts_port_lookup(Eterm, Uint32);
+ERTS_GLB_INLINE Port*erts_id2port(Eterm id);
+ERTS_GLB_INLINE Port *erts_id2port_sflgs(Eterm, Process *, ErtsProcLocks, Uint32);
+ERTS_GLB_INLINE void erts_port_release(Port *);
+#ifdef ERTS_SMP
+ERTS_GLB_INLINE Port *erts_thr_id2port_sflgs(Eterm id, Uint32 invalid_sflgs);
+ERTS_GLB_INLINE void erts_thr_port_release(Port *prt);
+#endif
+ERTS_GLB_INLINE Port *erts_thr_drvport2port_raw(ErlDrvPort, int);
+ERTS_GLB_INLINE Port *erts_drvport2port_raw(ErlDrvPort drvport);
+ERTS_GLB_INLINE Port *erts_drvport2port(ErlDrvPort, erts_aint32_t *);
+ERTS_GLB_INLINE Port *erts_drvportid2port(Eterm);
+ERTS_GLB_INLINE Eterm erts_drvport2id(ErlDrvPort);
+ERTS_GLB_INLINE Uint32 erts_portid2status(Eterm);
+ERTS_GLB_INLINE int erts_is_port_alive(Eterm);
+ERTS_GLB_INLINE int erts_is_valid_tracer_port(Eterm);
+ERTS_GLB_INLINE int erts_port_driver_callback_epilogue(Port *, erts_aint32_t *);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE Port *erts_pix2port(int ix)
+{
+ Port *prt;
+ ASSERT(0 <= ix && ix < erts_ptab_max(&erts_port));
+ prt = (Port *) erts_ptab_pix2intptr_nob(&erts_port, ix);
+ return prt == ERTS_PORT_LOCK_BUSY ? NULL : prt;
+}
+
+ERTS_GLB_INLINE Port *
+erts_port_lookup_raw(Eterm id)
+{
+ Port *prt;
+
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_lc_is_delaying());
+
+ if (is_not_internal_port(id))
+ return NULL;
+
+ prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port,
+ internal_port_index(id));
+ return prt && prt->common.id == id ? prt : NULL;
+}
+
+ERTS_GLB_INLINE Port *
+erts_port_lookup(Eterm id, Uint32 invalid_sflgs)
+{
+ Port *prt = erts_port_lookup_raw(id);
+ return (!prt
+ ? NULL
+ : ((invalid_sflgs & erts_atomic32_read_nob(&prt->state))
+ ? NULL
+ : prt));
+}
+
+
+ERTS_GLB_INLINE Port*
+erts_id2port(Eterm id)
+{
+ erts_aint32_t state;
+ Port *prt;
+
+ /* Only allowed to be called from managed threads */
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread());
+
+ if (is_not_internal_port(id))
+ return NULL;
+
+ prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port,
+ internal_port_index(id));
+
+ if (!prt || prt->common.id != id)
+ return NULL;
+
+ erts_smp_port_lock(prt);
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP) {
+ erts_smp_port_unlock(prt);
+ return NULL;
+ }
+
+ return prt;
+}
+
+
+ERTS_GLB_INLINE Port*
+erts_id2port_sflgs(Eterm id,
+ Process *c_p, ErtsProcLocks c_p_locks,
+ Uint32 invalid_sflgs)
+{
+#ifdef ERTS_SMP
+ int no_proc_locks = !c_p || !c_p_locks;
+#endif
+ erts_aint32_t state;
+ Port *prt;
+
+ /* Only allowed to be called from managed threads */
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread());
+
+ if (is_not_internal_port(id))
+ return NULL;
+
+ prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port,
+ internal_port_index(id));
+
+ if (!prt || prt->common.id != id)
+ return NULL;
+
+#ifdef ERTS_SMP
+ if (no_proc_locks)
+ erts_smp_port_lock(prt);
+ else if (erts_smp_port_trylock(prt) == EBUSY) {
+ /* Unlock process locks, and acquire locks in lock order... */
+ erts_smp_proc_unlock(c_p, c_p_locks);
+ erts_smp_port_lock(prt);
+ erts_smp_proc_lock(c_p, c_p_locks);
+ }
+#endif
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & invalid_sflgs) {
+#ifdef ERTS_SMP
+ erts_smp_port_unlock(prt);
+#endif
+ return NULL;
+ }
+
+ return prt;
+}
+
+ERTS_GLB_INLINE void
+erts_port_release(Port *prt)
+{
+ /* Only allowed to be called from managed threads */
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_managed_thread());
+#ifdef ERTS_SMP
+ erts_smp_port_unlock(prt);
+#else
+ if (prt->cleanup) {
+ prt->cleanup = 0;
+ erts_port_cleanup(prt);
+ }
+#endif
+}
+
+#ifdef ERTS_SMP
+
+/*
+ * erts_thr_id2port_sflgs() and erts_thr_port_release() can
+ * be used by unmanaged threads in the SMP case.
+ */
+ERTS_GLB_INLINE Port *
+erts_thr_id2port_sflgs(Eterm id, Uint32 invalid_sflgs)
+{
+ Port *prt;
+ ErtsThrPrgrDelayHandle dhndl;
+
+ if (is_not_internal_port(id))
+ return NULL;
+
+ dhndl = erts_thr_progress_unmanaged_delay();
+
+ prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port,
+ internal_port_index(id));
+
+ if (!prt || prt->common.id != id) {
+ erts_thr_progress_unmanaged_continue(dhndl);
+ prt = NULL;
+ }
+ else {
+ erts_aint32_t state;
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) {
+ erts_port_inc_refc(prt);
+ erts_thr_progress_unmanaged_continue(dhndl);
+ }
+
+ erts_mtx_lock(prt->lock);
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & invalid_sflgs) {
+ erts_mtx_unlock(prt->lock);
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_port_dec_refc(prt);
+ prt = NULL;
+ }
+ }
+
+ return prt;
+}
+
+ERTS_GLB_INLINE void
+erts_thr_port_release(Port *prt)
+{
+ erts_mtx_unlock(prt->lock);
+#ifdef ERTS_SMP
+ if (!erts_thr_progress_is_managed_thread())
+ erts_port_dec_refc(prt);
+#endif
+}
+
+#endif
+
+ERTS_GLB_INLINE Port*
+erts_thr_drvport2port_raw(ErlDrvPort drvport, int lock_pdl)
+{
+#if ERTS_ENABLE_LOCK_CHECK
+ int emu_thread = erts_lc_is_emu_thr();
+#endif
+ if (drvport == ERTS_INVALID_ERL_DRV_PORT)
+ return NULL;
+ else {
+ Port *prt = (Port *) drvport;
+ if (lock_pdl && prt->port_data_lock)
+ driver_pdl_lock(prt->port_data_lock);
+#if ERTS_ENABLE_LOCK_CHECK
+ if (!ERTS_IS_CRASH_DUMPING) {
+ if (emu_thread) {
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+ ERTS_LC_ASSERT(!prt->port_data_lock
+ || erts_lc_mtx_is_locked(&prt->port_data_lock->mtx));
+ }
+ else {
+ ERTS_LC_ASSERT(prt->port_data_lock);
+ ERTS_LC_ASSERT(erts_lc_mtx_is_locked(&prt->port_data_lock->mtx));
+ }
+ }
+#endif
+ return prt;
+ }
+}
+
+ERTS_GLB_INLINE Port*
+erts_drvport2port_raw(ErlDrvPort drvport)
+{
+ ERTS_LC_ASSERT(erts_lc_is_emu_thr());
+ if (drvport == ERTS_INVALID_ERL_DRV_PORT)
+ return NULL;
+ else {
+ Port *prt = (Port *) drvport;
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)
+ || ERTS_IS_CRASH_DUMPING);
+ return prt;
+ }
+}
+
+ERTS_GLB_INLINE Port*
+erts_drvport2port(ErlDrvPort drvport, erts_aint32_t *statep)
+{
+ Port *prt = erts_drvport2port_raw(drvport);
+ erts_aint32_t state;
+ if (!prt)
+ return NULL;
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
+ return NULL;
+ if (statep)
+ *statep = state;
+ return prt;
+}
+
+ERTS_GLB_INLINE Port*
+erts_drvportid2port(Eterm id)
+{
+ Port *prt;
+ erts_aint32_t state;
+ if (is_not_internal_port(id))
+ return NULL;
+ prt = (Port *) erts_ptab_pix2intptr_nob(&erts_port,
+ internal_port_index(id));
+ if (!prt)
+ return NULL;
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)
+ || ERTS_IS_CRASH_DUMPING);
+ if (prt->common.id != id)
+ return NULL;
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
+ return NULL;
+ return prt;
+}
+
+ERTS_GLB_INLINE Eterm
+erts_drvport2id(ErlDrvPort drvport)
+{
+ Port *prt = erts_drvport2port_raw(drvport);
+ if (!prt)
+ return am_undefined;
+ else
+ return prt->common.id;
+}
+
+ERTS_GLB_INLINE Uint32
+erts_portid2status(Eterm id)
+{
+ Port *prt = erts_port_lookup_raw(id);
+ if (prt)
+ return (Uint32) erts_atomic32_read_acqb(&prt->state);
+ else
+ return ERTS_PORT_SFLG_INVALID;
+}
+
+ERTS_GLB_INLINE int
+erts_is_port_alive(Eterm id)
+{
+ return !(erts_portid2status(id) & (ERTS_PORT_SFLG_INVALID
+ | ERTS_PORT_SFLGS_DEAD));
+}
+
+ERTS_GLB_INLINE int
+erts_is_valid_tracer_port(Eterm id)
+{
+ return !(erts_portid2status(id) & ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+}
+
+ERTS_GLB_INLINE int
+erts_port_driver_callback_epilogue(Port *prt, erts_aint32_t *statep)
+{
+ int reds = 0;
+ erts_aint32_t state;
+
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+
+ state = erts_atomic32_read_nob(&prt->state);
+ if ((state & ERTS_PORT_SFLG_CLOSING) && erts_is_port_ioq_empty(prt)) {
+ reds += ERTS_PORT_REDS_TERMINATE;
+ erts_terminate_port(prt);
+ state = erts_atomic32_read_nob(&prt->state);
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+ }
+
+#ifdef ERTS_SMP
+ if (prt->xports) {
+ reds += erts_port_handle_xports(prt);
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+ ASSERT(!prt->xports);
+ }
+#endif
+
+ if (statep)
+ *statep = state;
+
+ return reds;
+}
+
+#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+void erts_port_resume_procs(Port *);
+
+struct binary;
+
+#define ERTS_P2P_SIG_TYPE_BAD 0
+#define ERTS_P2P_SIG_TYPE_OUTPUT 1
+#define ERTS_P2P_SIG_TYPE_OUTPUTV 2
+#define ERTS_P2P_SIG_TYPE_CONNECT 3
+#define ERTS_P2P_SIG_TYPE_EXIT 4
+#define ERTS_P2P_SIG_TYPE_CONTROL 5
+#define ERTS_P2P_SIG_TYPE_CALL 6
+#define ERTS_P2P_SIG_TYPE_INFO 7
+#define ERTS_P2P_SIG_TYPE_LINK 8
+#define ERTS_P2P_SIG_TYPE_UNLINK 9
+#define ERTS_P2P_SIG_TYPE_SET_DATA 10
+#define ERTS_P2P_SIG_TYPE_GET_DATA 11
+
+#define ERTS_P2P_SIG_TYPE_BITS 4
+#define ERTS_P2P_SIG_TYPE_MASK \
+ ((1 << ERTS_P2P_SIG_TYPE_BITS) - 1)
+
+#define ERTS_P2P_SIG_DATA_FLG(N) \
+ (1 << (ERTS_P2P_SIG_TYPE_BITS + (N)))
+#define ERTS_P2P_SIG_DATA_FLG_BANG_OP ERTS_P2P_SIG_DATA_FLG(0)
+#define ERTS_P2P_SIG_DATA_FLG_REPLY ERTS_P2P_SIG_DATA_FLG(1)
+#define ERTS_P2P_SIG_DATA_FLG_NOSUSPEND ERTS_P2P_SIG_DATA_FLG(2)
+#define ERTS_P2P_SIG_DATA_FLG_FORCE ERTS_P2P_SIG_DATA_FLG(3)
+#define ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT ERTS_P2P_SIG_DATA_FLG(4)
+#define ERTS_P2P_SIG_DATA_FLG_BROKEN_LINK ERTS_P2P_SIG_DATA_FLG(5)
+#define ERTS_P2P_SIG_DATA_FLG_SCHED ERTS_P2P_SIG_DATA_FLG(6)
+
+struct ErtsProc2PortSigData_ {
+ int flags;
+ Eterm caller;
+ Uint32 ref[ERTS_MAX_REF_NUMBERS];
+ union {
+ struct {
+ Eterm from;
+ ErlIOVec *evp;
+ ErlDrvBinary *cbinp;
+ } outputv;
+ struct {
+ Eterm from;
+ char *bufp;
+ ErlDrvSizeT size;
+ } output;
+ struct {
+ Eterm from;
+ Eterm connected;
+ } connect;
+ struct {
+ Eterm from;
+ Eterm reason;
+ ErlHeapFragment *bp;
+ } exit;
+ struct {
+ struct binary *binp;
+ unsigned int command;
+ char *bufp;
+ ErlDrvSizeT size;
+ } control;
+ struct {
+ unsigned int command;
+ char *bufp;
+ ErlDrvSizeT size;
+ } call;
+ struct {
+ Eterm item;
+ } info;
+ struct {
+ Eterm port;
+ Eterm to;
+ } link;
+ struct {
+ Eterm from;
+ } unlink;
+ struct {
+ ErlHeapFragment *bp;
+ Eterm data;
+ } set_data;
+ } u;
+} ;
+
+ERTS_GLB_INLINE int
+erts_proc2port_sig_is_command_op(ErtsProc2PortSigData *sigdp);
+ERTS_GLB_INLINE ErlDrvSizeT
+erts_proc2port_sig_command_data_size(ErtsProc2PortSigData *sigdp);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE int
+erts_proc2port_sig_is_command_op(ErtsProc2PortSigData *sigdp)
+{
+ switch (sigdp->flags & ERTS_P2P_SIG_TYPE_MASK) {
+ case ERTS_P2P_SIG_TYPE_OUTPUT: return !0;
+ case ERTS_P2P_SIG_TYPE_OUTPUTV: return !0;
+ default: return 0;
+ }
+}
+
+ERTS_GLB_INLINE ErlDrvSizeT
+erts_proc2port_sig_command_data_size(ErtsProc2PortSigData *sigdp)
+{
+ switch (sigdp->flags & ERTS_P2P_SIG_TYPE_MASK) {
+ case ERTS_P2P_SIG_TYPE_OUTPUT: return sigdp->u.output.size;
+ case ERTS_P2P_SIG_TYPE_OUTPUTV: return sigdp->u.outputv.evp->size;
+ default: return (ErlDrvSizeT) 0;
+ }
+}
+
+#endif
+
+#define ERTS_PROC2PORT_SIG_EXEC 0
+#define ERTS_PROC2PORT_SIG_ABORT 1
+#define ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND 2
+#define ERTS_PROC2PORT_SIG_ABORT_CLOSED 3
+
+typedef int (*ErtsProc2PortSigCallback)(Port *,
+ erts_aint32_t,
+ int,
+ ErtsProc2PortSigData *);
+
+typedef enum {
+ ERTS_PORT_OP_BADARG,
+ ERTS_PORT_OP_CALLER_EXIT,
+ ERTS_PORT_OP_BUSY,
+ ERTS_PORT_OP_BUSY_SCHEDULED,
+ ERTS_PORT_OP_SCHEDULED,
+ ERTS_PORT_OP_DROPPED,
+ ERTS_PORT_OP_DONE
+} ErtsPortOpResult;
+
+ErtsPortOpResult
+erts_schedule_proc2port_signal(Process *,
+ Port *,
+ Eterm,
+ Eterm *,
+ ErtsProc2PortSigData *,
+ int,
+ ErtsProc2PortSigCallback);
+
+int erts_deliver_port_exit(Port *, Eterm, Eterm, int);
+
+/*
+ * Port signal flags
+ */
+#define ERTS_PORT_SIG_FLG_BANG_OP ERTS_P2P_SIG_DATA_FLG_BANG_OP
+#define ERTS_PORT_SIG_FLG_NOSUSPEND ERTS_P2P_SIG_DATA_FLG_NOSUSPEND
+#define ERTS_PORT_SIG_FLG_FORCE ERTS_P2P_SIG_DATA_FLG_FORCE
+#define ERTS_PORT_SIG_FLG_BROKEN_LINK ERTS_P2P_SIG_DATA_FLG_BROKEN_LINK
+#define ERTS_PORT_SIG_FLG_BAD_OUTPUT ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT
+#define ERTS_PORT_SIG_FLG_FORCE_SCHED ERTS_P2P_SIG_DATA_FLG_SCHED
+/* ERTS_PORT_SIG_FLG_FORCE_IMM_CALL only when crash dumping... */
+#define ERTS_PORT_SIG_FLG_FORCE_IMM_CALL ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT
+
+/*
+ * Port ! {Owner, {command, Data}}
+ * Port ! {Owner, {connect, NewOwner}}
+ * Port ! {Owner, close}
+ */
+ErtsPortOpResult erts_port_command(Process *, int, Port *, Eterm, Eterm *);
+
+/*
+ * Signals from processes to ports.
+ */
+ErtsPortOpResult erts_port_output(Process *, int, Port *, Eterm, Eterm, Eterm *);
+ErtsPortOpResult erts_port_exit(Process *, int, Port *, Eterm, Eterm, Eterm *);
+ErtsPortOpResult erts_port_connect(Process *, int, Port *, Eterm, Eterm, Eterm *);
+ErtsPortOpResult erts_port_link(Process *, Port *, Eterm, Eterm *);
+ErtsPortOpResult erts_port_unlink(Process *, Port *, Eterm, Eterm *);
+ErtsPortOpResult erts_port_control(Process *, Port *, unsigned int, Eterm, Eterm *);
+ErtsPortOpResult erts_port_call(Process *, Port *, unsigned int, Eterm, Eterm *);
+ErtsPortOpResult erts_port_info(Process *, Port *, Eterm, Eterm *);
+ErtsPortOpResult erts_port_set_data(Process *, Port *, Eterm, Eterm *);
+ErtsPortOpResult erts_port_get_data(Process *, Port *, Eterm *);
+
+#endif
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 3dc7c14faf..8ceadcdb8c 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -33,42 +33,29 @@
#include "erl_port_task.h"
#include "dist.h"
#include "dtrace-wrapper.h"
+#include <stdarg.h>
#if defined(DEBUG) && 0
-#define HARD_DEBUG
+#define ERTS_HARD_DEBUG_TASK_QUEUES
+#else
+#undef ERTS_HARD_DEBUG_TASK_QUEUES
#endif
-/*
- * Costs in reductions for some port operations.
- */
-#define ERTS_PORT_REDS_EXECUTE 0
-#define ERTS_PORT_REDS_FREE 50
-#define ERTS_PORT_REDS_TIMEOUT 200
-#define ERTS_PORT_REDS_INPUT 200
-#define ERTS_PORT_REDS_OUTPUT 200
-#define ERTS_PORT_REDS_EVENT 200
-#define ERTS_PORT_REDS_TERMINATE 100
-
-
-#define ERTS_PORT_TASK_INVALID_PORT(P, ID) \
- ((erts_port_status_get((P)) & ERTS_PORT_SFLGS_DEAD) || (P)->id != (ID))
-
-#define ERTS_PORT_IS_IN_RUNQ(RQ, P) \
- ((P)->sched.next || (P)->sched.prev || (RQ)->ports.start == (P))
-
-#define ERTS_PORT_NOT_IN_RUNQ(P) \
-do { \
- (P)->sched.prev = NULL; \
- (P)->sched.next = NULL; \
-} while (0)
+#ifdef ERTS_HARD_DEBUG_TASK_QUEUES
+static void chk_task_queues(Port *pp, ErtsPortTask *execq, int processing_busy_queue);
+#define ERTS_PT_DBG_CHK_TASK_QS(PP, EQ, PBQ) \
+ chk_task_queues((PP), (EQ), (PBQ))
+#else
+#define ERTS_PT_DBG_CHK_TASK_QS(PP, EQ, PBQ)
+#endif
#ifdef USE_VM_PROBES
#define DTRACE_DRIVER(PROBE_NAME, PP) \
- if (DTRACE_ENABLED(driver_ready_input)) { \
+ if (DTRACE_ENABLED(PROBE_NAME)) { \
DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE); \
DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); \
\
- dtrace_pid_str(PP->connected, process_str); \
+ dtrace_pid_str(ERTS_PORT_GET_CONNECTED(PP), process_str); \
dtrace_port_str(PP, port_str); \
DTRACE3(PROBE_NAME, process_str, port_str, PP->name); \
}
@@ -78,83 +65,768 @@ do { \
erts_smp_atomic_t erts_port_task_outstanding_io_tasks;
-struct ErtsPortTaskQueue_ {
- ErtsPortTask *first;
- ErtsPortTask *last;
- Port *port;
-};
+#define ERTS_PT_STATE_SCHEDULED 0
+#define ERTS_PT_STATE_ABORTED 1
+#define ERTS_PT_STATE_EXECUTING 2
+
+typedef union {
+ struct { /* I/O tasks */
+ ErlDrvEvent event;
+ ErlDrvEventData event_data;
+ } io;
+ struct {
+ ErtsProc2PortSigCallback callback;
+ ErtsProc2PortSigData data;
+ } psig;
+} ErtsPortTaskTypeData;
struct ErtsPortTask_ {
- ErtsPortTask *prev;
- ErtsPortTask *next;
- ErtsPortTaskQueue *queue;
- ErtsPortTaskHandle *handle;
+ erts_smp_atomic32_t state;
ErtsPortTaskType type;
- ErlDrvEvent event;
- ErlDrvEventData event_data;
+ union {
+ struct {
+ ErtsPortTask *next;
+ ErtsPortTaskHandle *handle;
+ int flags;
+ Uint32 ref[ERTS_MAX_REF_NUMBERS];
+ ErtsPortTaskTypeData td;
+ } alive;
+ ErtsThrPrgrLaterOp release;
+ } u;
};
-#ifdef HARD_DEBUG
-#define ERTS_PT_CHK_PORTQ(RQ) check_port_queue((RQ), NULL, 0)
-#define ERTS_PT_CHK_PRES_PORTQ(RQ, PP) check_port_queue((RQ), (PP), -1)
-#define ERTS_PT_CHK_IN_PORTQ(RQ, PP) check_port_queue((RQ), (PP), 1)
-#define ERTS_PT_CHK_NOT_IN_PORTQ(RQ, PP) check_port_queue((RQ), (PP), 0)
-#define ERTS_PT_CHK_TASKQ(Q) check_task_queue((Q), NULL, 0)
-#define ERTS_PT_CHK_IN_TASKQ(Q, T) check_task_queue((Q), (T), 1)
-#define ERTS_PT_CHK_NOT_IN_TASKQ(Q, T) check_task_queue((Q), (T), 0)
-static void
-check_port_queue(Port *chk_pp, int inq);
-static void
-check_task_queue(ErtsPortTaskQueue *ptqp,
- ErtsPortTask *chk_ptp,
- int inq);
-#else
-#define ERTS_PT_CHK_PORTQ(RQ)
-#define ERTS_PT_CHK_PRES_PORTQ(RQ, PP)
-#define ERTS_PT_CHK_IN_PORTQ(RQ, PP)
-#define ERTS_PT_CHK_NOT_IN_PORTQ(RQ, PP)
-#define ERTS_PT_CHK_TASKQ(Q)
-#define ERTS_PT_CHK_IN_TASKQ(Q, T)
-#define ERTS_PT_CHK_NOT_IN_TASKQ(Q, T)
+struct ErtsPortTaskHandleList_ {
+ ErtsPortTaskHandle handle;
+ union {
+ ErtsPortTaskHandleList *next;
+#ifdef ERTS_SMP
+ ErtsThrPrgrLaterOp release;
#endif
+ } u;
+};
+
+typedef struct ErtsPortTaskBusyCaller_ ErtsPortTaskBusyCaller;
+struct ErtsPortTaskBusyCaller_ {
+ ErtsPortTaskBusyCaller *next;
+ Eterm caller;
+ SWord count;
+ ErtsPortTask *last;
+};
+
+#define ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS 17
+struct ErtsPortTaskBusyCallerTable_ {
+ ErtsPortTaskBusyCaller *bucket[ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS];
+ ErtsPortTaskBusyCaller pre_alloc_busy_caller;
+};
+
-static void handle_remaining_tasks(ErtsRunQueue *runq, Port *pp);
+static void begin_port_cleanup(Port *pp,
+ ErtsPortTask **execq,
+ int *processing_busy_q_p);
ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(port_task,
ErtsPortTask,
- 200,
+ 1000,
ERTS_ALC_T_PORT_TASK)
-ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(port_taskq,
- ErtsPortTaskQueue,
+
+ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(busy_caller_table,
+ ErtsPortTaskBusyCallerTable,
50,
- ERTS_ALC_T_PORT_TASKQ)
+ ERTS_ALC_T_BUSY_CALLER_TAB)
+
+#ifdef ERTS_SMP
+static void
+call_port_task_free(void *vptp)
+{
+ port_task_free((ErtsPortTask *) vptp);
+}
+#endif
+
+static ERTS_INLINE void
+schedule_port_task_free(ErtsPortTask *ptp)
+{
+#ifdef ERTS_SMP
+ erts_schedule_thr_prgr_later_op(call_port_task_free,
+ (void *) ptp,
+ &ptp->u.release);
+#else
+ port_task_free(ptp);
+#endif
+}
+
+static ERTS_INLINE ErtsPortTask *
+p2p_sig_data_to_task(ErtsProc2PortSigData *sigdp)
+{
+ ErtsPortTask *ptp;
+ char *ptr = (char *) sigdp;
+ ptr -= offsetof(ErtsPortTask, u.alive.td.psig.data);
+ ptp = (ErtsPortTask *) ptr;
+ ASSERT(ptp->type == ERTS_PORT_TASK_PROC_SIG);
+ return ptp;
+}
+
+ErtsProc2PortSigData *
+erts_port_task_alloc_p2p_sig_data(void)
+{
+ ErtsPortTask *ptp = port_task_alloc();
+
+ ptp->type = ERTS_PORT_TASK_PROC_SIG;
+ ptp->u.alive.flags = ERTS_PT_FLG_SIG_DEP;
+ erts_smp_atomic32_init_nob(&ptp->state, ERTS_PT_STATE_SCHEDULED);
+
+ ASSERT(ptp == p2p_sig_data_to_task(&ptp->u.alive.td.psig.data));
+
+ return &ptp->u.alive.td.psig.data;
+}
+
+static ERTS_INLINE Eterm
+task_caller(ErtsPortTask *ptp)
+{
+ Eterm caller;
+
+ ASSERT(ptp->type == ERTS_PORT_TASK_PROC_SIG);
+
+ caller = ptp->u.alive.td.psig.data.caller;
+
+ ASSERT(is_internal_pid(caller) || is_internal_port(caller));
+
+ return caller;
+}
+
+/*
+ * Busy queue management
+ */
+
+static ERTS_INLINE int
+caller2bix(Eterm caller)
+{
+ ASSERT(is_internal_pid(caller) || is_internal_port(caller));
+ return (int) (_GET_PID_DATA(caller) % ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS);
+}
+
+
+static void
+popped_from_busy_queue(Port *pp, ErtsPortTask *ptp, int last)
+{
+ ErtsPortTaskBusyCaller **prev_bcpp = NULL, *bcp;
+ ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table;
+ Eterm caller = task_caller(ptp);
+ int bix = caller2bix(caller);
+
+ ASSERT(is_internal_pid(caller));
+
+ ASSERT(tabp);
+ bcp = tabp->bucket[bix];
+ prev_bcpp = &tabp->bucket[bix];
+ ASSERT(bcp);
+ while (bcp->caller != caller) {
+ prev_bcpp = &bcp->next;
+ bcp = bcp->next;
+ ASSERT(bcp);
+ }
+ ASSERT(bcp->count > 0);
+ if (--bcp->count != 0) {
+ ASSERT(!last);
+ }
+ else {
+ *prev_bcpp = bcp->next;
+ if (bcp == &tabp->pre_alloc_busy_caller)
+ bcp->caller = am_undefined;
+ else
+ erts_free(ERTS_ALC_T_BUSY_CALLER, bcp);
+ if (last) {
+#ifdef DEBUG
+ erts_aint32_t flags =
+#endif
+ erts_smp_atomic32_read_band_nob(
+ &pp->sched.flags,
+ ~ERTS_PTS_FLG_HAVE_BUSY_TASKS);
+ ASSERT(flags & ERTS_PTS_FLG_HAVE_BUSY_TASKS);
+#ifdef DEBUG
+ for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) {
+ ASSERT(!tabp->bucket[bix]);
+ }
+#endif
+ busy_caller_table_free(tabp);
+ pp->sched.taskq.local.busy.first = NULL;
+ pp->sched.taskq.local.busy.last = NULL;
+ pp->sched.taskq.local.busy.table = NULL;
+ }
+ }
+}
+
+static void
+busy_wait_move_to_busy_queue(Port *pp, ErtsPortTask *ptp)
+{
+ ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table;
+ Eterm caller = task_caller(ptp);
+ ErtsPortTaskBusyCaller *bcp;
+ int bix;
+
+ ASSERT(is_internal_pid(caller));
+ /*
+ * Port is busy and this task type needs to wait until not busy.
+ */
+
+ ASSERT(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY);
+
+ ptp->u.alive.next = NULL;
+ if (pp->sched.taskq.local.busy.last) {
+ ASSERT(pp->sched.taskq.local.busy.first);
+ pp->sched.taskq.local.busy.last->u.alive.next = ptp;
+ }
+ else {
+ int i;
+ erts_aint32_t flags;
+
+ pp->sched.taskq.local.busy.first = ptp;
+ flags = erts_smp_atomic32_read_bor_nob(&pp->sched.flags,
+ ERTS_PTS_FLG_HAVE_BUSY_TASKS);
+ ASSERT(!(flags & ERTS_PTS_FLG_HAVE_BUSY_TASKS));
+
+ ASSERT(!tabp);
+
+ tabp = busy_caller_table_alloc();
+ pp->sched.taskq.local.busy.table = tabp;
+ for (i = 0; i < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; i++)
+ tabp->bucket[i] = NULL;
+ tabp->pre_alloc_busy_caller.caller = am_undefined;
+ }
+ pp->sched.taskq.local.busy.last = ptp;
+
+ bix = caller2bix(caller);
+ ASSERT(tabp);
+ bcp = tabp->bucket[bix];
+
+ while (bcp && bcp->caller != caller)
+ bcp = bcp->next;
+
+ if (bcp)
+ bcp->count++;
+ else {
+ if (tabp->pre_alloc_busy_caller.caller == am_undefined)
+ bcp = &tabp->pre_alloc_busy_caller;
+ else
+ bcp = erts_alloc(ERTS_ALC_T_BUSY_CALLER,
+ sizeof(ErtsPortTaskBusyCaller));
+ bcp->caller = caller;
+ bcp->count = 1;
+ bcp->next = tabp->bucket[bix];
+ tabp->bucket[bix] = bcp;
+ }
+
+ bcp->last = ptp;
+}
+
+static ERTS_INLINE int
+check_sig_dep_move_to_busy_queue(Port *pp, ErtsPortTask *ptp)
+{
+ ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table;
+ ErtsPortTask *last_ptp;
+ ErtsPortTaskBusyCaller *bcp;
+ int bix;
+ Eterm caller;
+
+ ASSERT(ptp->u.alive.flags & ERTS_PT_FLG_SIG_DEP);
+ ASSERT(pp->sched.taskq.local.busy.last);
+ ASSERT(tabp);
+
+
+ /*
+ * We are either not busy, or the task does not imply wait on busy port.
+ * However, due to the signaling order requirements the task might depend
+ * on other tasks in the busy queue.
+ */
+
+ caller = task_caller(ptp);
+ bix = caller2bix(caller);
+ bcp = tabp->bucket[bix];
+ while (bcp && bcp->caller != caller)
+ bcp = bcp->next;
+
+ if (!bcp)
+ return 0;
+
+ /*
+ * There are other tasks that we depend on in the busy queue;
+ * move into busy queue.
+ */
+
+ bcp->count++;
+ last_ptp = bcp->last;
+ ptp->u.alive.next = last_ptp->u.alive.next;
+ if (!ptp->u.alive.next) {
+ ASSERT(pp->sched.taskq.local.busy.last == last_ptp);
+ pp->sched.taskq.local.busy.last = ptp;
+ }
+ last_ptp->u.alive.next = ptp;
+ bcp->last = ptp;
+
+ return 1;
+}
+
+static void
+no_sig_dep_move_from_busyq(Port *pp)
+{
+ ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table;
+ ErtsPortTask *first_ptp, *last_ptp, *ptp;
+ ErtsPortTaskBusyCaller **prev_bcpp = NULL, *bcp = NULL;
+
+ /*
+ * Move tasks at the head of the busy queue that no longer
+ * have any dependencies to busy wait tasks into the ordinary
+ * queue.
+ */
+
+ first_ptp = ptp = pp->sched.taskq.local.busy.first;
+
+ ASSERT(ptp && !(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY));
+ ASSERT(tabp);
+
+ do {
+ Eterm caller = task_caller(ptp);
+
+ if (!bcp || bcp->caller != caller) {
+ int bix = caller2bix(caller);
+
+ prev_bcpp = &tabp->bucket[bix];
+ bcp = tabp->bucket[bix];
+ ASSERT(bcp);
+ while (bcp->caller != caller) {
+ ASSERT(bcp);
+ prev_bcpp = &bcp->next;
+ bcp = bcp->next;
+ }
+ }
+
+ ASSERT(bcp->caller == caller);
+ ASSERT(bcp->count > 0);
+
+ if (--bcp->count == 0) {
+ *prev_bcpp = bcp->next;
+ if (bcp == &tabp->pre_alloc_busy_caller)
+ bcp->caller = am_undefined;
+ else
+ erts_free(ERTS_ALC_T_BUSY_CALLER, bcp);
+ }
+
+ last_ptp = ptp;
+ ptp = ptp->u.alive.next;
+ } while (ptp && !(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY));
+
+ pp->sched.taskq.local.busy.first = last_ptp->u.alive.next;
+ if (!pp->sched.taskq.local.busy.first) {
+#ifdef DEBUG
+ int bix;
+ erts_aint32_t flags =
+#endif
+ erts_smp_atomic32_read_band_nob(
+ &pp->sched.flags,
+ ~ERTS_PTS_FLG_HAVE_BUSY_TASKS);
+ ASSERT(flags & ERTS_PTS_FLG_HAVE_BUSY_TASKS);
+#ifdef DEBUG
+ for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) {
+ ASSERT(!tabp->bucket[bix]);
+ }
+#endif
+ busy_caller_table_free(tabp);
+ pp->sched.taskq.local.busy.last = NULL;
+ pp->sched.taskq.local.busy.table = NULL;
+ }
+ last_ptp->u.alive.next = pp->sched.taskq.local.first;
+ pp->sched.taskq.local.first = first_ptp;
+}
+
+#ifdef ERTS_HARD_DEBUG_TASK_QUEUES
+
+static void
+chk_task_queues(Port *pp, ErtsPortTask *execq, int processing_busy_queue)
+{
+ Sint tot_count, tot_table_count;
+ int bix;
+ ErtsPortTask *ptp, *last;
+ ErtsPortTask *first = processing_busy_queue ? execq : pp->sched.taskq.local.busy.first;
+ ErtsPortTask *nb_task_queue = processing_busy_queue ? pp->sched.taskq.local.first : execq;
+ ErtsPortTaskBusyCallerTable *tabp = pp->sched.taskq.local.busy.table;
+ ErtsPortTaskBusyCaller *bcp;
+
+ if (!first) {
+ ASSERT(!tabp);
+ ASSERT(!pp->sched.taskq.local.busy.last);
+ ASSERT(!(erts_smp_atomic32_read_nob(&pp->sched.flags) & ERTS_PTS_FLG_HAVE_BUSY_TASKS));
+ return;
+ }
+
+ ASSERT(erts_smp_atomic32_read_nob(&pp->sched.flags) & ERTS_PTS_FLG_HAVE_BUSY_TASKS);
+ ASSERT(tabp);
+
+ tot_count = 0;
+ ptp = first;
+ while (ptp) {
+ Sint count = 0;
+ Eterm caller = task_caller(ptp);
+ int bix = caller2bix(caller);
+ for (bcp = tabp->bucket[bix]; bcp; bcp = bcp->next)
+ if (bcp->caller == caller)
+ break;
+ ASSERT(bcp && bcp->caller == caller);
+
+ ASSERT(bcp->last);
+ while (1) {
+ ErtsPortTask *ptp2;
+
+ ASSERT(caller == task_caller(ptp));
+ count++;
+ tot_count++;
+ last = ptp;
+
+ for (ptp2 = nb_task_queue; ptp2; ptp2 = ptp2->u.alive.next) {
+ ASSERT(ptp != ptp2);
+ }
+
+ if (ptp == bcp->last)
+ break;
+ ptp = ptp->u.alive.next;
+ }
+
+ ASSERT(count == bcp->count);
+ ptp = ptp->u.alive.next;
+ }
+
+ tot_table_count = 0;
+ for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) {
+ for (bcp = tabp->bucket[bix]; bcp; bcp = bcp->next)
+ tot_table_count += bcp->count;
+ }
+
+ ASSERT(tot_count == tot_table_count);
+
+ ASSERT(last == pp->sched.taskq.local.busy.last);
+}
+
+#endif /* ERTS_HARD_DEBUG_TASK_QUEUES */
/*
* Task handle manipulation.
*/
+static ERTS_INLINE void
+reset_port_task_handle(ErtsPortTaskHandle *pthp)
+{
+ erts_smp_atomic_set_relb(pthp, (erts_aint_t) NULL);
+}
+
static ERTS_INLINE ErtsPortTask *
handle2task(ErtsPortTaskHandle *pthp)
{
- return (ErtsPortTask *) erts_smp_atomic_read_nob(pthp);
+ return (ErtsPortTask *) erts_smp_atomic_read_acqb(pthp);
}
static ERTS_INLINE void
reset_handle(ErtsPortTask *ptp)
{
- if (ptp->handle) {
- ASSERT(ptp == handle2task(ptp->handle));
- erts_smp_atomic_set_nob(ptp->handle, (erts_aint_t) NULL);
+ if (ptp->u.alive.handle) {
+ ASSERT(ptp == handle2task(ptp->u.alive.handle));
+ reset_port_task_handle(ptp->u.alive.handle);
}
}
static ERTS_INLINE void
set_handle(ErtsPortTask *ptp, ErtsPortTaskHandle *pthp)
{
- ptp->handle = pthp;
+ ptp->u.alive.handle = pthp;
if (pthp) {
- erts_smp_atomic_set_nob(pthp, (erts_aint_t) ptp);
- ASSERT(ptp == handle2task(ptp->handle));
+ erts_smp_atomic_set_relb(pthp, (erts_aint_t) ptp);
+ ASSERT(ptp == handle2task(ptp->u.alive.handle));
+ }
+}
+
+
+/*
+ * Busy port queue management
+ */
+
+static erts_aint32_t
+check_unset_busy_port_q(Port *pp,
+ erts_aint32_t flags,
+ ErtsPortTaskBusyPortQ *bpq)
+{
+ ErlDrvSizeT qsize, low;
+ int resume_procs = 0;
+
+ ASSERT(bpq);
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
+
+ erts_port_task_sched_lock(&pp->sched);
+ qsize = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->size);
+ low = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low);
+ if (qsize < low) {
+ erts_aint32_t mask = ~(ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q
+ | ERTS_PTS_FLG_BUSY_PORT_Q);
+ flags = erts_smp_atomic32_read_band_relb(&pp->sched.flags, mask);
+ if ((flags & ERTS_PTS_FLGS_BUSY) == ERTS_PTS_FLG_BUSY_PORT_Q)
+ resume_procs = 1;
+ }
+ else if (flags & ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q) {
+ flags = erts_smp_atomic32_read_band_relb(&pp->sched.flags,
+ ~ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q);
+ flags &= ~ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q;
+ }
+ erts_port_task_sched_unlock(&pp->sched);
+ if (resume_procs)
+ erts_port_resume_procs(pp);
+
+ return flags;
+}
+
+static ERTS_INLINE void
+aborted_proc2port_data(Port *pp, ErlDrvSizeT size)
+{
+ ErtsPortTaskBusyPortQ *bpq;
+ erts_aint32_t flags;
+ ErlDrvSizeT qsz;
+
+ ASSERT(pp->sched.taskq.bpq);
+
+ if (size == 0)
+ return;
+
+ bpq = pp->sched.taskq.bpq;
+
+ qsz = (ErlDrvSizeT) erts_smp_atomic_add_read_acqb(&bpq->size,
+ (erts_aint_t) -size);
+ ASSERT(qsz + size > qsz);
+ flags = erts_smp_atomic32_read_nob(&pp->sched.flags);
+ ASSERT(pp->sched.taskq.bpq);
+ if ((flags & (ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q
+ | ERTS_PTS_FLG_BUSY_PORT_Q)) != ERTS_PTS_FLG_BUSY_PORT_Q)
+ return;
+ if (qsz < (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low))
+ erts_smp_atomic32_read_bor_nob(&pp->sched.flags,
+ ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q);
+}
+
+static ERTS_INLINE void
+dequeued_proc2port_data(Port *pp, ErlDrvSizeT size)
+{
+ ErtsPortTaskBusyPortQ *bpq;
+ erts_aint32_t flags;
+ ErlDrvSizeT qsz;
+
+ ASSERT(pp->sched.taskq.bpq);
+
+ if (size == 0)
+ return;
+
+ bpq = pp->sched.taskq.bpq;
+
+ qsz = (ErlDrvSizeT) erts_smp_atomic_add_read_acqb(&bpq->size,
+ (erts_aint_t) -size);
+ ASSERT(qsz + size > qsz);
+ flags = erts_smp_atomic32_read_nob(&pp->sched.flags);
+ if (!(flags & ERTS_PTS_FLG_BUSY_PORT_Q))
+ return;
+ if (qsz < (ErlDrvSizeT) erts_smp_atomic_read_acqb(&bpq->low))
+ check_unset_busy_port_q(pp, flags, bpq);
+}
+
+static ERTS_INLINE erts_aint32_t
+enqueue_proc2port_data(Port *pp,
+ ErtsProc2PortSigData *sigdp,
+ erts_aint32_t flags)
+{
+ ErtsPortTaskBusyPortQ *bpq = pp->sched.taskq.bpq;
+ if (sigdp && bpq) {
+ ErlDrvSizeT size = erts_proc2port_sig_command_data_size(sigdp);
+ if (size) {
+ erts_aint_t asize = erts_smp_atomic_add_read_acqb(&bpq->size,
+ (erts_aint_t) size);
+ ErlDrvSizeT qsz = (ErlDrvSizeT) asize;
+
+ ASSERT(qsz - size < qsz);
+
+ if (!(flags & ERTS_PTS_FLG_BUSY_PORT_Q) && qsz > bpq->high) {
+ flags = erts_smp_atomic32_read_bor_acqb(&pp->sched.flags,
+ ERTS_PTS_FLG_BUSY_PORT_Q);
+ flags |= ERTS_PTS_FLG_BUSY_PORT_Q;
+ qsz = (ErlDrvSizeT) erts_smp_atomic_read_acqb(&bpq->size);
+ if (qsz < (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low)) {
+ flags = (erts_smp_atomic32_read_bor_relb(
+ &pp->sched.flags,
+ ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q));
+ flags |= ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q;
+ }
+ }
+ ASSERT(!(flags & ERTS_PTS_FLG_EXIT));
+ }
+ }
+ return flags;
+}
+
+/*
+ * erl_drv_busy_msgq_limits() is called by drivers either reading or
+ * writing the limits.
+ *
+ * A limit of zero is interpreted as a read only request (using a
+ * limit of zero would not be useful). Other values are interpreted
+ * as a write-read request.
+ */
+
+void
+erl_drv_busy_msgq_limits(ErlDrvPort dport, ErlDrvSizeT *lowp, ErlDrvSizeT *highp)
+{
+ Port *pp = erts_drvport2port(dport, NULL);
+ ErtsPortTaskBusyPortQ *bpq = pp->sched.taskq.bpq;
+ int written = 0, resume_procs = 0;
+ ErlDrvSizeT low, high;
+
+ if (!pp || !bpq) {
+ if (lowp)
+ *lowp = ERL_DRV_BUSY_MSGQ_DISABLED;
+ if (highp)
+ *highp = ERL_DRV_BUSY_MSGQ_DISABLED;
+ return;
+ }
+
+ low = lowp ? *lowp : 0;
+ high = highp ? *highp : 0;
+
+ erts_port_task_sched_lock(&pp->sched);
+
+ if (low == ERL_DRV_BUSY_MSGQ_DISABLED
+ || high == ERL_DRV_BUSY_MSGQ_DISABLED) {
+ /* Disable busy msgq feature */
+ erts_aint32_t flags;
+ pp->sched.taskq.bpq = NULL;
+ flags = ~(ERTS_PTS_FLG_BUSY_PORT_Q|ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q);
+ flags = erts_smp_atomic32_read_band_acqb(&pp->sched.flags, flags);
+ if ((flags & ERTS_PTS_FLGS_BUSY) == ERTS_PTS_FLG_BUSY_PORT_Q)
+ resume_procs = 1;
+ }
+ else {
+
+ if (!low)
+ low = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->low);
+ else {
+ if (bpq->high < low)
+ bpq->high = low;
+ erts_smp_atomic_set_relb(&bpq->low, (erts_aint_t) low);
+ written = 1;
+ }
+
+ if (!high)
+ high = bpq->high;
+ else {
+ if (low > high) {
+ low = high;
+ erts_smp_atomic_set_relb(&bpq->low, (erts_aint_t) low);
+ }
+ bpq->high = high;
+ written = 1;
+ }
+
+ if (written) {
+ ErlDrvSizeT size = (ErlDrvSizeT) erts_smp_atomic_read_nob(&bpq->size);
+ if (size > high)
+ erts_smp_atomic32_read_bor_relb(&pp->sched.flags,
+ ERTS_PTS_FLG_BUSY_PORT_Q);
+ else if (size < low)
+ erts_smp_atomic32_read_bor_relb(&pp->sched.flags,
+ ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q);
+ }
+ }
+
+ erts_port_task_sched_unlock(&pp->sched);
+
+ if (resume_procs)
+ erts_port_resume_procs(pp);
+ if (lowp)
+ *lowp = low;
+ if (highp)
+ *highp = high;
+}
+
+/*
+ * No-suspend handles.
+ */
+
+#ifdef ERTS_SMP
+static void
+free_port_task_handle_list(void *vpthlp)
+{
+ erts_free(ERTS_ALC_T_PT_HNDL_LIST, vpthlp);
+}
+#endif
+
+static void
+schedule_port_task_handle_list_free(ErtsPortTaskHandleList *pthlp)
+{
+#ifdef ERTS_SMP
+ erts_schedule_thr_prgr_later_op(free_port_task_handle_list,
+ (void *) pthlp,
+ &pthlp->u.release);
+#else
+ erts_free(ERTS_ALC_T_PT_HNDL_LIST, pthlp);
+#endif
+}
+
+static ERTS_INLINE void
+abort_nosuspend_task(Port *pp,
+ ErtsPortTaskType type,
+ ErtsPortTaskTypeData *tdp)
+{
+
+ ASSERT(type == ERTS_PORT_TASK_PROC_SIG);
+
+ if (!pp->sched.taskq.bpq)
+ tdp->psig.callback(NULL,
+ ERTS_PORT_SFLG_INVALID,
+ ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND,
+ &tdp->psig.data);
+ else {
+ ErlDrvSizeT size = erts_proc2port_sig_command_data_size(&tdp->psig.data);
+ tdp->psig.callback(NULL,
+ ERTS_PORT_SFLG_INVALID,
+ ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND,
+ &tdp->psig.data);
+ aborted_proc2port_data(pp, size);
+ }
+}
+
+static ErtsPortTaskHandleList *
+get_free_nosuspend_handles(Port *pp)
+{
+ ErtsPortTaskHandleList *nshp, *last_nshp = NULL;
+
+ ERTS_SMP_LC_ASSERT(erts_port_task_sched_lock_is_locked(&pp->sched));
+
+ nshp = pp->sched.taskq.local.busy.nosuspend;
+
+ while (nshp && !erts_port_task_is_scheduled(&nshp->handle)) {
+ last_nshp = nshp;
+ nshp = nshp->u.next;
+ }
+
+ if (!last_nshp)
+ nshp = NULL;
+ else {
+ nshp = pp->sched.taskq.local.busy.nosuspend;
+ pp->sched.taskq.local.busy.nosuspend = last_nshp->u.next;
+ last_nshp->u.next = NULL;
+ if (!pp->sched.taskq.local.busy.nosuspend)
+ erts_smp_atomic32_read_band_nob(&pp->sched.flags,
+ ~ERTS_PTS_FLG_HAVE_NS_TASKS);
+ }
+ return nshp;
+}
+
+static void
+free_nosuspend_handles(ErtsPortTaskHandleList *free_nshp)
+{
+ while (free_nshp) {
+ ErtsPortTaskHandleList *nshp = free_nshp;
+ free_nshp = free_nshp->u.next;
+ schedule_port_task_handle_list_free(nshp);
}
}
@@ -167,7 +839,6 @@ enqueue_port(ErtsRunQueue *runq, Port *pp)
{
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
pp->sched.next = NULL;
- pp->sched.prev = runq->ports.end;
if (runq->ports.end) {
ASSERT(runq->ports.start);
runq->ports.end->sched.next = pp;
@@ -177,39 +848,10 @@ enqueue_port(ErtsRunQueue *runq, Port *pp)
runq->ports.start = pp;
}
- runq->ports.info.len++;
- if (runq->ports.info.max_len < runq->ports.info.len)
- runq->ports.info.max_len = runq->ports.info.len;
- runq->len++;
- if (runq->max_len < runq->len)
- runq->max_len = runq->len;
runq->ports.end = pp;
ASSERT(runq->ports.start && runq->ports.end);
-}
-
-static ERTS_INLINE void
-dequeue_port(ErtsRunQueue *runq, Port *pp)
-{
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- if (pp->sched.next)
- pp->sched.next->sched.prev = pp->sched.prev;
- else {
- ASSERT(runq->ports.end == pp);
- runq->ports.end = pp->sched.prev;
- }
- if (pp->sched.prev)
- pp->sched.prev->sched.next = pp->sched.next;
- else {
- ASSERT(runq->ports.start == pp);
- runq->ports.start = pp->sched.next;
- }
- ASSERT(runq->ports.info.len > 0);
- runq->ports.info.len--;
- ASSERT(runq->len > 0);
- runq->len--;
- ASSERT(runq->ports.start || !runq->ports.end);
- ASSERT(runq->ports.end || !runq->ports.start);
+ erts_smp_inc_runq_len(runq, &runq->ports.info, ERTS_PORT_PRIO_LEVEL);
}
static ERTS_INLINE Port *
@@ -222,16 +864,11 @@ pop_port(ErtsRunQueue *runq)
}
else {
runq->ports.start = runq->ports.start->sched.next;
- if (runq->ports.start)
- runq->ports.start->sched.prev = NULL;
- else {
+ if (!runq->ports.start) {
ASSERT(runq->ports.end == pp);
runq->ports.end = NULL;
}
- ASSERT(runq->ports.info.len > 0);
- runq->ports.info.len--;
- ASSERT(runq->len > 0);
- runq->len--;
+ erts_smp_dec_runq_len(runq, &runq->ports.info, ERTS_PORT_PRIO_LEVEL);
}
ASSERT(runq->ports.start || !runq->ports.end);
@@ -239,294 +876,423 @@ pop_port(ErtsRunQueue *runq)
return pp;
}
+/*
+ * Task queue operations
+ */
-#ifdef HARD_DEBUG
+static ERTS_INLINE int
+enqueue_task(Port *pp,
+ ErtsPortTask *ptp,
+ ErtsProc2PortSigData *sigdp,
+ ErtsPortTaskHandleList *ns_pthlp,
+ erts_aint32_t *flagsp)
-static void
-check_port_queue(ErtsRunQueue *runq, Port *chk_pp, int inq)
{
- Port *pp;
- Port *last_pp;
- Port *first_pp = runq->ports.start;
- int no_forward = 0, no_backward = 0;
- int found_forward = 0, found_backward = 0;
- if (!first_pp) {
- ASSERT(!runq->ports.end);
- }
+ int res;
+ erts_aint32_t fail_flags = ERTS_PTS_FLG_EXIT;
+ erts_aint32_t flags;
+ ptp->u.alive.next = NULL;
+ if (ns_pthlp)
+ fail_flags |= ERTS_PTS_FLG_BUSY_PORT;
+ erts_port_task_sched_lock(&pp->sched);
+ flags = erts_smp_atomic32_read_nob(&pp->sched.flags);
+ if (flags & fail_flags)
+ res = 0;
else {
- ASSERT(!first_pp->sched.prev);
- for (pp = first_pp; pp; pp = pp->sched.next) {
- ASSERT(pp->sched.taskq);
- if (pp->sched.taskq->first)
- no_forward++;
- if (chk_pp == pp)
- found_forward = 1;
- if (!pp->sched.prev) {
- ASSERT(first_pp == pp);
- }
- if (!pp->sched.next) {
- ASSERT(runq->ports.end == pp);
- last_pp = pp;
- }
+ if (ns_pthlp) {
+ ns_pthlp->u.next = pp->sched.taskq.local.busy.nosuspend;
+ pp->sched.taskq.local.busy.nosuspend = ns_pthlp;
}
- for (pp = last_pp; pp; pp = pp->sched.prev) {
- ASSERT(pp->sched.taskq);
- if (pp->sched.taskq->last)
- no_backward++;
- if (chk_pp == pp)
- found_backward = 1;
- if (!pp->sched.prev) {
- ASSERT(first_pp == pp);
- }
- if (!pp->sched.next) {
- ASSERT(runq->ports.end == pp);
- }
- check_task_queue(pp->sched.taskq, NULL, 0);
- }
- ASSERT(no_forward == no_backward);
- }
- ASSERT(no_forward == runq->ports.info.len);
- if (chk_pp) {
- if (chk_pp->sched.taskq || chk_pp->sched.exe_taskq) {
- ASSERT(chk_pp->sched.taskq != chk_pp->sched.exe_taskq);
- }
- ASSERT(!chk_pp->sched.taskq || chk_pp->sched.taskq->first);
- if (inq < 0)
- inq = chk_pp->sched.taskq && !chk_pp->sched.exe_taskq;
- if (inq) {
- ASSERT(found_forward && found_backward);
+ if (pp->sched.taskq.in.last) {
+ ASSERT(pp->sched.taskq.in.first);
+ ASSERT(!pp->sched.taskq.in.last->u.alive.next);
+
+ pp->sched.taskq.in.last->u.alive.next = ptp;
}
else {
- ASSERT(!found_forward && !found_backward);
- }
- }
-}
-
-#endif
+ ASSERT(!pp->sched.taskq.in.first);
-/*
- * Task queue operations
- */
-
-static ERTS_INLINE ErtsPortTaskQueue *
-port_taskq_init(ErtsPortTaskQueue *ptqp, Port *pp)
-{
- if (ptqp) {
- ptqp->first = NULL;
- ptqp->last = NULL;
- ptqp->port = pp;
+ pp->sched.taskq.in.first = ptp;
+ }
+ pp->sched.taskq.in.last = ptp;
+ flags = enqueue_proc2port_data(pp, sigdp, flags);
+ res = 1;
}
- return ptqp;
+ erts_port_task_sched_unlock(&pp->sched);
+ *flagsp = flags;
+ return res;
}
static ERTS_INLINE void
-enqueue_task(ErtsPortTaskQueue *ptqp, ErtsPortTask *ptp)
+prepare_exec(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p)
{
- ERTS_PT_CHK_NOT_IN_TASKQ(ptqp, ptp);
- ptp->next = NULL;
- ptp->prev = ptqp->last;
- ptp->queue = ptqp;
- if (ptqp->last) {
- ASSERT(ptqp->first);
- ptqp->last->next = ptp;
+ erts_aint32_t act = erts_smp_atomic32_read_nob(&pp->sched.flags);
+
+ if (!pp->sched.taskq.local.busy.first || (act & ERTS_PTS_FLG_BUSY_PORT)) {
+ *execqp = pp->sched.taskq.local.first;
+ *processing_busy_q_p = 0;
}
else {
- ASSERT(!ptqp->first);
- ptqp->first = ptp;
+ *execqp = pp->sched.taskq.local.busy.first;
+ *processing_busy_q_p = 1;
+ }
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
+
+ while (1) {
+ erts_aint32_t new, exp;
+
+ new = exp = act;
+
+ new &= ~ERTS_PTS_FLG_IN_RUNQ;
+ new |= ERTS_PTS_FLG_EXEC;
+
+ act = erts_smp_atomic32_cmpxchg_nob(&pp->sched.flags, new, exp);
+
+ ASSERT(act & ERTS_PTS_FLG_IN_RUNQ);
+
+ if (exp == act)
+ break;
}
- ptqp->last = ptp;
- ERTS_PT_CHK_IN_TASKQ(ptqp, ptp);
}
-static ERTS_INLINE void
-push_task(ErtsPortTaskQueue *ptqp, ErtsPortTask *ptp)
+/* finalize_exec() return value != 0 if port should remain active */
+static ERTS_INLINE int
+finalize_exec(Port *pp, ErtsPortTask **execq, int processing_busy_q)
{
- ERTS_PT_CHK_NOT_IN_TASKQ(ptqp, ptp);
- ptp->next = ptqp->first;
- ptp->prev = NULL;
- ptp->queue = ptqp;
- if (ptqp->first) {
- ASSERT(ptqp->last);
- ptqp->first->prev = ptp;
- }
+ erts_aint32_t act;
+
+ if (!processing_busy_q)
+ pp->sched.taskq.local.first = *execq;
else {
- ASSERT(!ptqp->last);
- ptqp->last = ptp;
+ pp->sched.taskq.local.busy.first = *execq;
+ ASSERT(*execq);
+ }
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execq, processing_busy_q);
+
+ *execq = NULL;
+
+ act = erts_smp_atomic32_read_nob(&pp->sched.flags);
+ if (act & ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q)
+ act = check_unset_busy_port_q(pp, act, pp->sched.taskq.bpq);
+
+ while (1) {
+ erts_aint32_t new, exp;
+
+ new = exp = act;
+
+ new &= ~ERTS_PTS_FLG_EXEC;
+ if (act & ERTS_PTS_FLG_HAVE_TASKS)
+ new |= ERTS_PTS_FLG_IN_RUNQ;
+
+ act = erts_smp_atomic32_cmpxchg_relb(&pp->sched.flags, new, exp);
+
+ ASSERT(!(act & ERTS_PTS_FLG_IN_RUNQ));
+
+ if (exp == act)
+ break;
}
- ptqp->first = ptp;
- ERTS_PT_CHK_IN_TASKQ(ptqp, ptp);
+
+ return (act & ERTS_PTS_FLG_HAVE_TASKS) != 0;
}
-static ERTS_INLINE void
-dequeue_task(ErtsPortTask *ptp)
+static ERTS_INLINE erts_aint32_t
+select_queue_for_exec(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p)
{
- ASSERT(ptp);
- ASSERT(ptp->queue);
- ERTS_PT_CHK_IN_TASKQ(ptp->queue, ptp);
- if (ptp->next)
- ptp->next->prev = ptp->prev;
- else {
- ASSERT(ptp->queue->last == ptp);
- ptp->queue->last = ptp->prev;
+ erts_aint32_t flags = erts_smp_atomic32_read_nob(&pp->sched.flags);
+
+ if (flags & ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q)
+ flags = check_unset_busy_port_q(pp, flags, pp->sched.taskq.bpq);
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
+
+ if (flags & ERTS_PTS_FLG_BUSY_PORT) {
+ if (*processing_busy_q_p) {
+ ErtsPortTask *ptp;
+
+ ptp = pp->sched.taskq.local.busy.first = *execqp;
+ if (!ptp)
+ pp->sched.taskq.local.busy.last = NULL;
+ else if (!(ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY))
+ no_sig_dep_move_from_busyq(pp);
+
+ *execqp = pp->sched.taskq.local.first;
+ *processing_busy_q_p = 0;
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
+ }
+
+ return flags;
}
- if (ptp->prev)
- ptp->prev->next = ptp->next;
- else {
- ASSERT(ptp->queue->first == ptp);
- ptp->queue->first = ptp->next;
+
+ /* Not busy */
+
+ if (!*processing_busy_q_p && pp->sched.taskq.local.busy.first) {
+ pp->sched.taskq.local.first = *execqp;
+ *execqp = pp->sched.taskq.local.busy.first;
+ *processing_busy_q_p = 1;
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
}
- ASSERT(ptp->queue->first || !ptp->queue->last);
- ASSERT(ptp->queue->last || !ptp->queue->first);
- ERTS_PT_CHK_NOT_IN_TASKQ(ptp->queue, ptp);
+ return flags;
}
-static ERTS_INLINE ErtsPortTask *
-pop_task(ErtsPortTaskQueue *ptqp)
+/*
+ * check_task_for_exec() returns a value !0 if the task
+ * is ok to execute; otherwise 0.
+ */
+static ERTS_INLINE int
+check_task_for_exec(Port *pp,
+ erts_aint32_t flags,
+ ErtsPortTask **execqp,
+ int *processing_busy_q_p,
+ ErtsPortTask *ptp)
{
- ErtsPortTask *ptp = ptqp->first;
- if (!ptp) {
- ASSERT(!ptqp->last);
+
+ if (!*processing_busy_q_p) {
+ /* Processing normal queue */
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, ptp, *processing_busy_q_p);
+
+ if ((flags & ERTS_PTS_FLG_BUSY_PORT)
+ && (ptp->u.alive.flags & ERTS_PT_FLG_WAIT_BUSY)) {
+
+ busy_wait_move_to_busy_queue(pp, ptp);
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
+
+ return 0;
+ }
+
+ if (pp->sched.taskq.local.busy.last
+ && (ptp->u.alive.flags & ERTS_PT_FLG_SIG_DEP)) {
+
+ int res = !check_sig_dep_move_to_busy_queue(pp, ptp);
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
+
+ return res;
+ }
+
}
else {
- ERTS_PT_CHK_IN_TASKQ(ptqp, ptp);
- ASSERT(!ptp->prev);
- ptqp->first = ptp->next;
- if (ptqp->first)
- ptqp->first->prev = NULL;
- else {
- ASSERT(ptqp->last == ptp);
- ptqp->last = NULL;
+ /* Processing busy queue */
+
+ ASSERT(!(flags & ERTS_PTS_FLG_BUSY_PORT));
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, ptp, *processing_busy_q_p);
+
+ popped_from_busy_queue(pp, ptp, !*execqp);
+
+ if (!*execqp) {
+ *execqp = pp->sched.taskq.local.first;
+ *processing_busy_q_p = 0;
}
- ASSERT(ptp->queue->first || !ptp->queue->last);
- ASSERT(ptp->queue->last || !ptp->queue->first);
+
+ ERTS_PT_DBG_CHK_TASK_QS(pp, *execqp, *processing_busy_q_p);
+
}
- ERTS_PT_CHK_NOT_IN_TASKQ(ptqp, ptp);
- return ptp;
+
+ return 1;
}
-#ifdef HARD_DEBUG
+static ErtsPortTask *
+fetch_in_queue(Port *pp, ErtsPortTask **execqp)
+{
+ ErtsPortTask *ptp;
+ ErtsPortTaskHandleList *free_nshp = NULL;
-static void
-check_task_queue(ErtsPortTaskQueue *ptqp,
- ErtsPortTask *chk_ptp,
- int inq)
+ erts_port_task_sched_lock(&pp->sched);
+
+ ptp = pp->sched.taskq.in.first;
+ pp->sched.taskq.in.first = NULL;
+ pp->sched.taskq.in.last = NULL;
+ if (ptp)
+ *execqp = ptp->u.alive.next;
+ else
+ erts_smp_atomic32_read_band_nob(&pp->sched.flags,
+ ~ERTS_PTS_FLG_HAVE_TASKS);
+
+
+ if (pp->sched.taskq.local.busy.nosuspend)
+ free_nshp = get_free_nosuspend_handles(pp);
+
+ erts_port_task_sched_unlock(&pp->sched);
+
+ if (free_nshp)
+ free_nosuspend_handles(free_nshp);
+
+ return ptp;
+}
+
+static ERTS_INLINE ErtsPortTask *
+select_task_for_exec(Port *pp,
+ ErtsPortTask **execqp,
+ int *processing_busy_q_p)
{
ErtsPortTask *ptp;
- ErtsPortTask *last_ptp;
- ErtsPortTask *first_ptp = ptqp->first;
- int found_forward = 0, found_backward = 0;
- if (!first_ptp) {
- ASSERT(!ptqp->last);
- }
- else {
- ASSERT(!first_ptp->prev);
- for (ptp = first_ptp; ptp; ptp = ptp->next) {
- ASSERT(ptp->queue == ptqp);
- if (chk_ptp == ptp)
- found_forward = 1;
- if (!ptp->prev) {
- ASSERT(first_ptp == ptp);
- }
- if (!ptp->next) {
- ASSERT(ptqp->last == ptp);
- last_ptp = ptp;
- }
- }
- for (ptp = last_ptp; ptp; ptp = ptp->prev) {
- ASSERT(ptp->queue == ptqp);
- if (chk_ptp == ptp)
- found_backward = 1;
- if (!ptp->prev) {
- ASSERT(first_ptp == ptp);
- }
- if (!ptp->next) {
- ASSERT(ptqp->last == ptp);
- }
- }
- }
- if (chk_ptp) {
- if (inq) {
- ASSERT(found_forward && found_backward);
- }
+ erts_aint32_t flags;
+
+ flags = select_queue_for_exec(pp, execqp, processing_busy_q_p);
+
+ while (1) {
+ ptp = *execqp;
+ if (ptp)
+ *execqp = ptp->u.alive.next;
else {
- ASSERT(!found_forward && !found_backward);
+ ptp = fetch_in_queue(pp, execqp);
+ if (!ptp)
+ return NULL;
}
+ if (check_task_for_exec(pp, flags, execqp, processing_busy_q_p, ptp))
+ return ptp;
}
}
-#endif
/*
* Abort a scheduled task.
*/
int
-erts_port_task_abort(Eterm id, ErtsPortTaskHandle *pthp)
+erts_port_task_abort(ErtsPortTaskHandle *pthp)
{
- ErtsRunQueue *runq;
- ErtsPortTaskQueue *ptqp;
+ int res;
ErtsPortTask *ptp;
- Port *pp;
- int port_is_dequeued = 0;
-
- pp = &erts_port[internal_port_index(id)];
- runq = erts_port_runq(pp);
+#ifdef ERTS_SMP
+ ErtsThrPrgrDelayHandle dhndl = erts_thr_progress_unmanaged_delay();
+#endif
ptp = handle2task(pthp);
+ if (!ptp)
+ res = -1;
+ else {
+ erts_aint32_t old_state;
+
+#ifdef DEBUG
+ ErtsPortTaskHandle *saved_pthp = ptp->u.alive.handle;
+ ERTS_SMP_READ_MEMORY_BARRIER;
+ old_state = erts_smp_atomic32_read_nob(&ptp->state);
+ if (old_state == ERTS_PT_STATE_SCHEDULED) {
+ ASSERT(saved_pthp == pthp);
+ }
+#endif
- if (!ptp) {
- erts_smp_runq_unlock(runq);
- return 1;
+ old_state = erts_smp_atomic32_cmpxchg_nob(&ptp->state,
+ ERTS_PT_STATE_ABORTED,
+ ERTS_PT_STATE_SCHEDULED);
+ if (old_state != ERTS_PT_STATE_SCHEDULED)
+ res = - 1; /* Task already aborted, executing, or executed */
+ else {
+
+ reset_port_task_handle(pthp);
+
+ switch (ptp->type) {
+ case ERTS_PORT_TASK_INPUT:
+ case ERTS_PORT_TASK_OUTPUT:
+ case ERTS_PORT_TASK_EVENT:
+ ASSERT(erts_smp_atomic_read_nob(
+ &erts_port_task_outstanding_io_tasks) > 0);
+ erts_smp_atomic_dec_relb(&erts_port_task_outstanding_io_tasks);
+ break;
+ case ERTS_PORT_TASK_PROC_SIG:
+ ERTS_INTERNAL_ERROR("Aborted process to port signal");
+ break;
+ default:
+ break;
+ }
+
+ res = 0;
+ }
}
- ASSERT(ptp->handle == pthp);
- ptqp = ptp->queue;
- ASSERT(pp == ptqp->port);
+#ifdef ERTS_SMP
+ erts_thr_progress_unmanaged_continue(dhndl);
+#endif
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
- ASSERT(ptqp);
- ASSERT(ptqp->first);
+ return res;
+}
- dequeue_task(ptp);
- reset_handle(ptp);
+void
+erts_port_task_abort_nosuspend_tasks(Port *pp)
+{
+ erts_aint32_t flags;
+ ErtsPortTaskHandleList *abort_list;
+#ifdef ERTS_SMP
+ ErtsThrPrgrDelayHandle dhndl = ERTS_THR_PRGR_DHANDLE_INVALID;
+#endif
- switch (ptp->type) {
- case ERTS_PORT_TASK_INPUT:
- case ERTS_PORT_TASK_OUTPUT:
- case ERTS_PORT_TASK_EVENT:
- ASSERT(erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks) > 0);
- erts_smp_atomic_dec_relb(&erts_port_task_outstanding_io_tasks);
- break;
- default:
- break;
- }
+ erts_port_task_sched_lock(&pp->sched);
+ flags = erts_smp_atomic32_read_band_nob(&pp->sched.flags,
+ ~ERTS_PTS_FLG_HAVE_NS_TASKS);
+ abort_list = pp->sched.taskq.local.busy.nosuspend;
+ pp->sched.taskq.local.busy.nosuspend = NULL;
+ erts_port_task_sched_unlock(&pp->sched);
- ASSERT(ptqp == pp->sched.taskq || ptqp == pp->sched.exe_taskq);
+ while (abort_list) {
+#ifdef DEBUG
+ ErtsPortTaskHandle *saved_pthp;
+#endif
+ ErtsPortTaskType type;
+ ErtsPortTaskTypeData td;
+ ErtsPortTaskHandle *pthp;
+ ErtsPortTask *ptp;
+ ErtsPortTaskHandleList *pthlp;
+ erts_aint32_t old_state;
- if (ptqp->first || pp->sched.taskq != ptqp)
- ptqp = NULL;
- else {
- pp->sched.taskq = NULL;
- if (!pp->sched.exe_taskq) {
- dequeue_port(runq, pp);
- ERTS_PORT_NOT_IN_RUNQ(pp);
- port_is_dequeued = 1;
+ pthlp = abort_list;
+ abort_list = pthlp->u.next;
+
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ dhndl = erts_thr_progress_unmanaged_delay();
+#endif
+
+ pthp = &pthlp->handle;
+ ptp = handle2task(pthp);
+ if (!ptp) {
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_thr_progress_unmanaged_continue(dhndl);
+#endif
+ schedule_port_task_handle_list_free(pthlp);
+ continue;
}
- }
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
+#ifdef DEBUG
+ saved_pthp = ptp->u.alive.handle;
+ ERTS_SMP_READ_MEMORY_BARRIER;
+ old_state = erts_smp_atomic32_read_nob(&ptp->state);
+ if (old_state == ERTS_PT_STATE_SCHEDULED) {
+ ASSERT(saved_pthp == pthp);
+ }
+#endif
- erts_smp_runq_unlock(runq);
-
- if (erts_system_profile_flags.runnable_ports && port_is_dequeued) {
- profile_runnable_port(pp, am_inactive);
- }
+ old_state = erts_smp_atomic32_cmpxchg_nob(&ptp->state,
+ ERTS_PT_STATE_ABORTED,
+ ERTS_PT_STATE_SCHEDULED);
+ if (old_state != ERTS_PT_STATE_SCHEDULED) {
+ /* Task already aborted, executing, or executed */
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_thr_progress_unmanaged_continue(dhndl);
+#endif
+ schedule_port_task_handle_list_free(pthlp);
+ continue;
+ }
- port_task_free(ptp);
- if (ptqp)
- port_taskq_free(ptqp);
+ reset_port_task_handle(pthp);
- return 0;
+ type = ptp->type;
+ td = ptp->u.alive.td;
+
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_thr_progress_unmanaged_continue(dhndl);
+#endif
+ schedule_port_task_handle_list_free(pthlp);
+
+ abort_nosuspend_task(pp, type, &td);
+ }
}
/*
@@ -537,243 +1303,264 @@ int
erts_port_task_schedule(Eterm id,
ErtsPortTaskHandle *pthp,
ErtsPortTaskType type,
- ErlDrvEvent event,
- ErlDrvEventData event_data)
+ ...)
{
+ ErtsProc2PortSigData *sigdp = NULL;
+ ErtsPortTaskHandleList *ns_pthlp = NULL;
+#ifdef ERTS_SMP
+ ErtsRunQueue *xrunq;
+ ErtsThrPrgrDelayHandle dhndl;
+#endif
ErtsRunQueue *runq;
Port *pp;
- ErtsPortTask *ptp;
- int enq_port = 0;
-
- /*
- * NOTE: We might not have the port lock here. We are only
- * allowed to access the 'sched', 'tab_status',
- * and 'id' fields of the port struct while
- * tasks_lock is held.
- */
+ ErtsPortTask *ptp = NULL;
+ erts_aint32_t act, add_flags;
if (pthp && erts_port_task_is_scheduled(pthp)) {
ASSERT(0);
- erts_port_task_abort(id, pthp);
+ erts_port_task_abort(pthp);
}
- ptp = port_task_alloc();
-
ASSERT(is_internal_port(id));
- pp = &erts_port[internal_port_index(id)];
- runq = erts_port_runq(pp);
-
- if (!runq || ERTS_PORT_TASK_INVALID_PORT(pp, id)) {
- if (runq)
- erts_smp_runq_unlock(runq);
- return -1;
- }
- ASSERT(!erts_port_task_is_scheduled(pthp));
+#ifdef ERTS_SMP
+ dhndl = erts_thr_progress_unmanaged_delay();
+#endif
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
+ pp = erts_port_lookup_raw(id);
- if (!pp->sched.taskq && !pp->sched.exe_taskq) {
#ifdef ERTS_SMP
- ErtsRunQueue *xrunq = erts_check_emigration_need(runq, ERTS_PORT_PRIO_LEVEL);
- if (xrunq) {
- /* Port emigrated ... */
- erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq);
- erts_smp_runq_unlock(runq);
- runq = xrunq;
- }
- enq_port = !pp->sched.taskq && !pp->sched.exe_taskq;
-#else
- enq_port = 1;
-#endif
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) {
+ if (pp)
+ erts_port_inc_refc(pp);
+ erts_thr_progress_unmanaged_continue(dhndl);
}
+#endif
- ASSERT(!enq_port || !(runq->flags & ERTS_RUNQ_FLG_SUSPENDED));
+ if (!pp)
+ goto fail;
- if (!pp->sched.taskq)
- pp->sched.taskq = port_taskq_init(port_taskq_alloc(), pp);
+ if (type != ERTS_PORT_TASK_PROC_SIG) {
+ ptp = port_task_alloc();
- ASSERT(ptp);
+ ptp->type = type;
+ ptp->u.alive.flags = 0;
- ptp->type = type;
- ptp->event = event;
- ptp->event_data = event_data;
+ erts_smp_atomic32_init_nob(&ptp->state, ERTS_PT_STATE_SCHEDULED);
- set_handle(ptp, pthp);
+ set_handle(ptp, pthp);
+ }
switch (type) {
- case ERTS_PORT_TASK_FREE:
- erl_exit(ERTS_ABORT_EXIT,
- "erts_port_task_schedule(): Cannot schedule free task\n");
- break;
case ERTS_PORT_TASK_INPUT:
- case ERTS_PORT_TASK_OUTPUT:
- case ERTS_PORT_TASK_EVENT:
+ case ERTS_PORT_TASK_OUTPUT: {
+ va_list argp;
+ va_start(argp, type);
+ ptp->u.alive.td.io.event = va_arg(argp, ErlDrvEvent);
+ va_end(argp);
+ erts_smp_atomic_inc_relb(&erts_port_task_outstanding_io_tasks);
+ break;
+ }
+ case ERTS_PORT_TASK_EVENT: {
+ va_list argp;
+ va_start(argp, type);
+ ptp->u.alive.td.io.event = va_arg(argp, ErlDrvEvent);
+ ptp->u.alive.td.io.event_data = va_arg(argp, ErlDrvEventData);
+ va_end(argp);
erts_smp_atomic_inc_relb(&erts_port_task_outstanding_io_tasks);
- /* Fall through... */
+ break;
+ }
+ case ERTS_PORT_TASK_PROC_SIG: {
+ va_list argp;
+ ASSERT(!pthp);
+ va_start(argp, type);
+ sigdp = va_arg(argp, ErtsProc2PortSigData *);
+ ptp = p2p_sig_data_to_task(sigdp);
+ ptp->u.alive.td.psig.callback = va_arg(argp, ErtsProc2PortSigCallback);
+ ptp->u.alive.flags |= va_arg(argp, int);
+ va_end(argp);
+ if (!(ptp->u.alive.flags & ERTS_PT_FLG_NOSUSPEND))
+ set_handle(ptp, pthp);
+ else {
+ ns_pthlp = erts_alloc(ERTS_ALC_T_PT_HNDL_LIST,
+ sizeof(ErtsPortTaskHandleList));
+ set_handle(ptp, &ns_pthlp->handle);
+ }
+ break;
+ }
default:
- enqueue_task(pp->sched.taskq, ptp);
break;
}
-#ifndef ERTS_SMP
- /*
- * When (!enq_port && !pp->sched.exe_taskq) is true in the smp case,
- * the port might not be in the run queue. If this is the case, another
- * thread is in the process of enqueueing the port. This very seldom
- * occur, but do occur and is a valid scenario. Debug info showing this
- * enqueue in progress must be introduced before we can enable (modified
- * versions of these) assertions in the smp case again.
- */
-#if defined(HARD_DEBUG)
- if (pp->sched.exe_taskq || enq_port)
- ERTS_PT_CHK_NOT_IN_PORTQ(runq, pp);
- else
- ERTS_PT_CHK_IN_PORTQ(runq, pp);
-#elif defined(DEBUG)
- if (!enq_port && !pp->sched.exe_taskq) {
- /* We should be in port run q */
- ASSERT(pp->sched.prev || runq->ports.start == pp);
+ if (!enqueue_task(pp, ptp, sigdp, ns_pthlp, &act)) {
+ reset_handle(ptp);
+ if (ns_pthlp && !(act & ERTS_PTS_FLG_EXIT))
+ goto abort_nosuspend;
+ else
+ goto fail;
}
-#endif
-#endif
- if (!enq_port) {
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
- erts_smp_runq_unlock(runq);
- }
- else {
- enqueue_port(runq, pp);
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
-
- if (erts_system_profile_flags.runnable_ports) {
- profile_runnable_port(pp, am_active);
+ add_flags = ERTS_PTS_FLG_HAVE_TASKS;
+ if (ns_pthlp)
+ add_flags |= ERTS_PTS_FLG_HAVE_NS_TASKS;
+
+ while (1) {
+ erts_aint32_t new, exp;
+
+ if ((act & add_flags) == add_flags
+ && (act & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC)))
+ goto done; /* Done */
+
+ new = exp = act;
+ new |= add_flags;
+ if (!(act & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC)))
+ new |= ERTS_PTS_FLG_IN_RUNQ;
+
+ act = erts_smp_atomic32_cmpxchg_relb(&pp->sched.flags, new, exp);
+
+ if (exp == act) {
+ if (!(act & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC)))
+ break; /* Need to enqueue port */
+ goto done; /* Done */
}
+ if (act & ERTS_PTS_FLG_EXIT)
+ goto done; /* Died after our task insert... */
+ }
+
+ /* Enqueue port on run-queue */
+
+ runq = erts_port_runq(pp);
+ if (!runq)
+ ERTS_INTERNAL_ERROR("Missing run-queue");
+
+#ifdef ERTS_SMP
+ xrunq = erts_check_emigration_need(runq, ERTS_PORT_PRIO_LEVEL);
+ if (xrunq) {
+ /* Port emigrated ... */
+ erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq);
erts_smp_runq_unlock(runq);
+ runq = erts_port_runq(pp);
+ if (!runq)
+ ERTS_INTERNAL_ERROR("Missing run-queue");
+ }
+#endif
- erts_smp_notify_inc_runq(runq);
+ enqueue_port(runq, pp);
+
+ if (erts_system_profile_flags.runnable_ports) {
+ profile_runnable_port(pp, am_active);
}
+
+ erts_smp_runq_unlock(runq);
+
+ erts_smp_notify_inc_runq(runq);
+
+done:
+
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_port_dec_refc(pp);
+#endif
+
+ return 0;
+
+abort_nosuspend:
+
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_port_dec_refc(pp);
+#endif
+
+ abort_nosuspend_task(pp, ptp->type, &ptp->u.alive.td);
+
+ ASSERT(ns_pthlp);
+ erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp);
+ if (ptp)
+ port_task_free(ptp);
+
return 0;
+
+fail:
+
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_port_dec_refc(pp);
+#endif
+
+ if (ns_pthlp)
+ erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp);
+
+ if (ptp)
+ port_task_free(ptp);
+
+ return -1;
}
void
erts_port_task_free_port(Port *pp)
{
+ ErtsProcList *suspended;
+ erts_aint32_t flags;
ErtsRunQueue *runq;
- int port_is_dequeued = 0;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
- ASSERT(!(pp->status & ERTS_PORT_SFLGS_DEAD));
+ ASSERT(!(erts_atomic32_read_nob(&pp->state) & ERTS_PORT_SFLGS_DEAD));
+
runq = erts_port_runq(pp);
- ASSERT(runq);
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
- if (pp->sched.exe_taskq) {
- /* I (this thread) am currently executing this port, free it
- when scheduled out... */
- ErtsPortTask *ptp = port_task_alloc();
- erts_smp_port_state_lock(pp);
- pp->status &= ~ERTS_PORT_SFLG_CLOSING;
- pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED;
- erts_may_save_closed_port(pp);
- erts_smp_port_state_unlock(pp);
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 1);
- ptp->type = ERTS_PORT_TASK_FREE;
- ptp->event = (ErlDrvEvent) -1;
- ptp->event_data = NULL;
- set_handle(ptp, NULL);
- push_task(pp->sched.exe_taskq, ptp);
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
- erts_smp_runq_unlock(runq);
- }
- else {
- ErtsPortTaskQueue *ptqp = pp->sched.taskq;
- if (ptqp) {
- dequeue_port(runq, pp);
- ERTS_PORT_NOT_IN_RUNQ(pp);
- port_is_dequeued = 1;
- }
- erts_smp_port_state_lock(pp);
- pp->status &= ~ERTS_PORT_SFLG_CLOSING;
- pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED;
- erts_may_save_closed_port(pp);
- erts_smp_port_state_unlock(pp);
-#ifdef ERTS_SMP
- erts_smp_atomic_dec_nob(&pp->refc); /* Not alive */
-#endif
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */
- handle_remaining_tasks(runq, pp); /* May release runq lock */
- ASSERT(!pp->sched.exe_taskq && (!ptqp || !ptqp->first));
- pp->sched.taskq = NULL;
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
-#ifndef ERTS_SMP
- ASSERT(pp->status & ERTS_PORT_SFLG_PORT_DEBUG);
- erts_port_status_set(pp, ERTS_PORT_SFLG_FREE);
-#endif
- erts_smp_runq_unlock(runq);
+ if (!runq)
+ ERTS_INTERNAL_ERROR("Missing run-queue");
+ erts_port_task_sched_lock(&pp->sched);
+ flags = erts_smp_atomic32_read_bor_relb(&pp->sched.flags,
+ ERTS_PTS_FLG_EXIT);
+ suspended = pp->suspended;
+ pp->suspended = NULL;
+ erts_port_task_sched_unlock(&pp->sched);
+ erts_atomic32_read_bset_relb(&pp->state,
+ (ERTS_PORT_SFLG_CLOSING
+ | ERTS_PORT_SFLG_FREE),
+ ERTS_PORT_SFLG_FREE);
- if (erts_system_profile_flags.runnable_ports && port_is_dequeued) {
- profile_runnable_port(pp, am_inactive);
- }
+ erts_smp_runq_unlock(runq);
- if (ptqp)
- port_taskq_free(ptqp);
- }
-}
+ if (erts_proclist_fetch(&suspended, NULL))
+ erts_resume_processes(suspended);
-typedef struct {
- ErtsRunQueue *runq;
- int *resp;
-} ErtsPortTaskExeBlockData;
+ if (!(flags & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC)))
+ begin_port_cleanup(pp, NULL, NULL);
+}
/*
- * Run all scheduled tasks for the first port in run queue. If
- * new tasks appear while running reschedule port (free task is
- * an exception; it is always handled instantly).
+ * Execute scheduled tasks of a port.
*
* erts_port_task_execute() is called by scheduler threads between
- * scheduleing of processes. Sched lock should be held by caller.
+ * scheduling of processes. Run-queue lock should be held by caller.
*/
int
erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
{
- int port_was_enqueued = 0;
Port *pp;
- ErtsPortTaskQueue *ptqp;
- ErtsPortTask *ptp;
+ ErtsPortTask *execq;
+ int processing_busy_q;
int res = 0;
int reds = ERTS_PORT_REDS_EXECUTE;
erts_aint_t io_tasks_executed = 0;
int fpe_was_unmasked;
+ erts_aint32_t state;
+ int active;
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- ERTS_PT_CHK_PORTQ(runq);
-
pp = pop_port(runq);
if (!pp) {
res = 0;
goto done;
}
- ERTS_PORT_NOT_IN_RUNQ(pp);
+ erts_smp_runq_unlock(runq);
*curr_port_pp = pp;
-
- ASSERT(pp->sched.taskq);
- ASSERT(pp->sched.taskq->first);
- ptqp = pp->sched.taskq;
- pp->sched.taskq = NULL;
-
- ASSERT(!pp->sched.exe_taskq);
- pp->sched.exe_taskq = ptqp;
-
- if (erts_smp_port_trylock(pp) == EBUSY) {
- erts_smp_runq_unlock(runq);
- erts_smp_port_lock(pp);
- erts_smp_runq_lock(runq);
- }
if (erts_sched_stat.enabled) {
ErtsSchedulerData *esdp = erts_get_scheduler_data();
@@ -790,81 +1577,94 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
erts_smp_spin_unlock(&erts_sched_stat.lock);
}
+ prepare_exec(pp, &execq, &processing_busy_q);
+
+ erts_smp_port_lock(pp);
+
/* trace port scheduling, in */
if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) {
trace_sched_ports(pp, am_in);
}
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
+ fpe_was_unmasked = erts_block_fpe();
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
- ptp = pop_task(ptqp);
+ state = erts_atomic32_read_nob(&pp->state);
+ goto begin_handle_tasks;
- fpe_was_unmasked = erts_block_fpe();
+ while (1) {
+ erts_aint32_t task_state;
+ ErtsPortTask *ptp;
- while (ptp) {
- ASSERT(pp->sched.taskq != pp->sched.exe_taskq);
+ ptp = select_task_for_exec(pp, &execq, &processing_busy_q);
+ if (!ptp)
+ break;
+
+ task_state = erts_smp_atomic32_cmpxchg_nob(&ptp->state,
+ ERTS_PT_STATE_EXECUTING,
+ ERTS_PT_STATE_SCHEDULED);
+ if (task_state != ERTS_PT_STATE_SCHEDULED) {
+ ASSERT(task_state == ERTS_PT_STATE_ABORTED);
+ goto aborted_port_task;
+ }
reset_handle(ptp);
- erts_smp_runq_unlock(runq);
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
ERTS_SMP_CHK_NO_PROC_LOCKS;
ASSERT(pp->drv_ptr);
switch (ptp->type) {
- case ERTS_PORT_TASK_FREE: /* May be pushed in q at any time */
- reds += ERTS_PORT_REDS_FREE;
- erts_smp_runq_lock(runq);
-
- erts_unblock_fpe(fpe_was_unmasked);
- ASSERT(pp->status & ERTS_PORT_SFLG_FREE_SCHEDULED);
- if (ptqp->first || (pp->sched.taskq && pp->sched.taskq->first))
- handle_remaining_tasks(runq, pp);
- ASSERT(!ptqp->first
- && (!pp->sched.taskq || !pp->sched.taskq->first));
-#ifdef ERTS_SMP
- erts_smp_atomic_dec_nob(&pp->refc); /* Not alive */
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */
-#else
- erts_port_status_bor_set(pp, ERTS_PORT_SFLG_FREE);
-#endif
-
- port_task_free(ptp);
- if (pp->sched.taskq)
- port_taskq_free(pp->sched.taskq);
- pp->sched.taskq = NULL;
-
- goto tasks_done;
case ERTS_PORT_TASK_TIMEOUT:
reds += ERTS_PORT_REDS_TIMEOUT;
- if (!(pp->status & ERTS_PORT_SFLGS_DEAD)) {
+ if (!(state & ERTS_PORT_SFLGS_DEAD)) {
DTRACE_DRIVER(driver_timeout, pp);
(*pp->drv_ptr->timeout)((ErlDrvData) pp->drv_data);
}
break;
case ERTS_PORT_TASK_INPUT:
reds += ERTS_PORT_REDS_INPUT;
- ASSERT((pp->status & ERTS_PORT_SFLGS_DEAD) == 0);
+ ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
DTRACE_DRIVER(driver_ready_input, pp);
/* NOTE some windows drivers use ->ready_input for input and output */
- (*pp->drv_ptr->ready_input)((ErlDrvData) pp->drv_data, ptp->event);
+ (*pp->drv_ptr->ready_input)((ErlDrvData) pp->drv_data,
+ ptp->u.alive.td.io.event);
io_tasks_executed++;
break;
case ERTS_PORT_TASK_OUTPUT:
reds += ERTS_PORT_REDS_OUTPUT;
- ASSERT((pp->status & ERTS_PORT_SFLGS_DEAD) == 0);
+ ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
DTRACE_DRIVER(driver_ready_output, pp);
- (*pp->drv_ptr->ready_output)((ErlDrvData) pp->drv_data, ptp->event);
+ (*pp->drv_ptr->ready_output)((ErlDrvData) pp->drv_data,
+ ptp->u.alive.td.io.event);
io_tasks_executed++;
break;
case ERTS_PORT_TASK_EVENT:
reds += ERTS_PORT_REDS_EVENT;
- ASSERT((pp->status & ERTS_PORT_SFLGS_DEAD) == 0);
+ ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
DTRACE_DRIVER(driver_event, pp);
- (*pp->drv_ptr->event)((ErlDrvData) pp->drv_data, ptp->event, ptp->event_data);
+ (*pp->drv_ptr->event)((ErlDrvData) pp->drv_data,
+ ptp->u.alive.td.io.event,
+ ptp->u.alive.td.io.event_data);
io_tasks_executed++;
break;
+ case ERTS_PORT_TASK_PROC_SIG: {
+ ErtsProc2PortSigData *sigdp = &ptp->u.alive.td.psig.data;
+ ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
+ if (!pp->sched.taskq.bpq)
+ reds += ptp->u.alive.td.psig.callback(pp,
+ state,
+ ERTS_PROC2PORT_SIG_EXEC,
+ sigdp);
+ else {
+ ErlDrvSizeT size = erts_proc2port_sig_command_data_size(sigdp);
+ reds += ptp->u.alive.td.psig.callback(pp,
+ state,
+ ERTS_PROC2PORT_SIG_EXEC,
+ sigdp);
+ dequeued_proc2port_data(pp, size);
+ }
+ break;
+ }
case ERTS_PORT_TASK_DIST_CMD:
reds += erts_dist_command(pp, CONTEXT_REDS-reds);
break;
@@ -875,33 +1675,30 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
break;
}
- if ((pp->status & ERTS_PORT_SFLG_CLOSING)
- && erts_is_port_ioq_empty(pp)) {
- reds += ERTS_PORT_REDS_TERMINATE;
- erts_terminate_port(pp);
- }
+ reds += erts_port_driver_callback_epilogue(pp, &state);
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
+ aborted_port_task:
+ schedule_port_task_free(ptp);
-#ifdef ERTS_SMP
- if (pp->xports)
- erts_smp_xports_unlock(pp);
- ASSERT(!pp->xports);
-#endif
-
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
-
- port_task_free(ptp);
+ begin_handle_tasks:
+ if (state & ERTS_PORT_SFLG_FREE) {
+ reds += ERTS_PORT_REDS_FREE;
+ begin_port_cleanup(pp, &execq, &processing_busy_q);
- erts_smp_runq_lock(runq);
+ break;
+ }
- ptp = pop_task(ptqp);
+ if (reds >= CONTEXT_REDS)
+ break;
}
- tasks_done:
-
erts_unblock_fpe(fpe_was_unmasked);
+ /* trace port scheduling, out */
+ if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) {
+ trace_sched_ports(pp, am_out);
+ }
+
if (io_tasks_executed) {
ASSERT(erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
>= io_tasks_executed);
@@ -909,81 +1706,57 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
-1*io_tasks_executed);
}
- *curr_port_pp = NULL;
-
#ifdef ERTS_SMP
ASSERT(runq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue));
#endif
- if (!pp->sched.taskq) {
- ASSERT(pp->sched.exe_taskq);
- pp->sched.exe_taskq = NULL;
+ active = finalize_exec(pp, &execq, processing_busy_q);
+
+ erts_port_release(pp);
+
+ *curr_port_pp = NULL;
+
+ erts_smp_runq_lock(runq);
+
+ if (!active) {
+ if (erts_system_profile_flags.runnable_ports)
+ profile_runnable_port(pp, am_inactive);
}
else {
#ifdef ERTS_SMP
ErtsRunQueue *xrunq;
#endif
- ASSERT(!(pp->status & ERTS_PORT_SFLGS_DEAD));
- ASSERT(pp->sched.taskq->first);
+ ASSERT(!(erts_atomic32_read_nob(&pp->state) & ERTS_PORT_SFLGS_DEAD));
#ifdef ERTS_SMP
xrunq = erts_check_emigration_need(runq, ERTS_PORT_PRIO_LEVEL);
if (!xrunq) {
#endif
enqueue_port(runq, pp);
- ASSERT(pp->sched.exe_taskq);
- pp->sched.exe_taskq = NULL;
/* No need to notify ourselves about inc in runq. */
#ifdef ERTS_SMP
}
else {
/* Port emigrated ... */
erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq);
+ erts_smp_runq_unlock(runq);
+
+ xrunq = erts_port_runq(pp);
+ ASSERT(xrunq);
enqueue_port(xrunq, pp);
- ASSERT(pp->sched.exe_taskq);
- pp->sched.exe_taskq = NULL;
erts_smp_runq_unlock(xrunq);
erts_smp_notify_inc_runq(xrunq);
+
+ erts_smp_runq_lock(runq);
}
#endif
- port_was_enqueued = 1;
}
+ done:
res = (erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
!= (erts_aint_t) 0);
- ERTS_PT_CHK_PRES_PORTQ(runq, pp);
-
- port_taskq_free(ptqp);
-
- if (erts_system_profile_flags.runnable_ports && (port_was_enqueued != 1)) {
- profile_runnable_port(pp, am_inactive);
- }
-
- /* trace port scheduling, out */
- if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) {
- trace_sched_ports(pp, am_out);
- }
-#ifndef ERTS_SMP
- erts_port_release(pp);
-#else
- {
- erts_aint_t refc;
- erts_smp_mtx_unlock(pp->lock);
- refc = erts_smp_atomic_dec_read_nob(&pp->refc);
- ASSERT(refc >= 0);
- if (refc == 0) {
- erts_smp_runq_unlock(runq);
- erts_port_cleanup(pp); /* Might aquire runq lock */
- erts_smp_runq_lock(runq);
- res = (erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
- != (erts_aint_t) 0);
- }
- }
-#endif
-
- done:
runq->scheduler->reductions += reds;
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
@@ -992,121 +1765,205 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
return res;
}
-/*
- * Handle remaining tasks after a free task.
- */
+#ifdef ERTS_SMP
+static void
+release_port(void *vport)
+{
+ erts_port_dec_refc((Port *) vport);
+}
+#endif
static void
-handle_remaining_tasks(ErtsRunQueue *runq, Port *pp)
+begin_port_cleanup(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p)
{
- int i;
- ErtsPortTask *ptp;
- ErtsPortTaskQueue *ptqps[] = {pp->sched.exe_taskq, pp->sched.taskq};
+ int i, max;
+ ErtsPortTaskBusyCallerTable *tabp;
+ ErtsPortTask *qs[3];
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
- for (i = 0; i < sizeof(ptqps)/sizeof(ErtsPortTaskQueue *); i++) {
- if (!ptqps[i])
- continue;
- ptp = pop_task(ptqps[i]);
- while (ptp) {
+ /*
+ * Abort remaining tasks...
+ *
+ * We want to process queues in the following order in order
+ * to preserve signal ordering guarantees:
+ * 1. Local busy queue
+ * 2. Local queue
+ * 3. In queue
+ */
+
+ max = 0;
+ if (!execqp) {
+ if (pp->sched.taskq.local.busy.first)
+ qs[max++] = pp->sched.taskq.local.busy.first;
+ if (pp->sched.taskq.local.first)
+ qs[max++] = pp->sched.taskq.local.first;
+ }
+ else {
+ if (*processing_busy_q_p) {
+ if (*execqp)
+ qs[max++] = *execqp;
+ if (pp->sched.taskq.local.first)
+ qs[max++] = pp->sched.taskq.local.first;
+ }
+ else {
+ if (pp->sched.taskq.local.busy.first)
+ qs[max++] = pp->sched.taskq.local.busy.first;
+ if (*execqp)
+ qs[max++] = *execqp;
+ }
+ *execqp = NULL;
+ *processing_busy_q_p = 0;
+ }
+ pp->sched.taskq.local.busy.first = NULL;
+ pp->sched.taskq.local.busy.last = NULL;
+ pp->sched.taskq.local.first = NULL;
+ tabp = pp->sched.taskq.local.busy.table;
+ if (tabp) {
+ int bix;
+ for (bix = 0; bix < ERTS_PORT_TASK_BUSY_CALLER_TABLE_BUCKETS; bix++) {
+ ErtsPortTaskBusyCaller *bcp = tabp->bucket[bix];
+ while (bcp) {
+ ErtsPortTaskBusyCaller *free_bcp = bcp;
+ bcp = bcp->next;
+ if (free_bcp != &tabp->pre_alloc_busy_caller)
+ erts_free(ERTS_ALC_T_BUSY_CALLER, free_bcp);
+ }
+ }
+
+ busy_caller_table_free(tabp);
+ pp->sched.taskq.local.busy.table = NULL;
+ }
+
+ erts_port_task_sched_lock(&pp->sched);
+ qs[max] = pp->sched.taskq.in.first;
+ pp->sched.taskq.in.first = NULL;
+ pp->sched.taskq.in.last = NULL;
+ erts_port_task_sched_unlock(&pp->sched);
+ if (qs[max])
+ max++;
+
+ for (i = 0; i < max; i++) {
+ while (1) {
+ erts_aint32_t state;
+ ErtsPortTask *ptp = qs[i];
+ if (!ptp)
+ break;
+
+ qs[i] = ptp->u.alive.next;
+
+ /* Normal case here is aborted tasks... */
+ state = erts_smp_atomic32_read_nob(&ptp->state);
+ if (state == ERTS_PT_STATE_ABORTED)
+ goto aborted_port_task;
+
+ state = erts_smp_atomic32_cmpxchg_nob(&ptp->state,
+ ERTS_PT_STATE_EXECUTING,
+ ERTS_PT_STATE_SCHEDULED);
+ if (state != ERTS_PT_STATE_SCHEDULED) {
+ ASSERT(state == ERTS_PT_STATE_ABORTED);
+ goto aborted_port_task;
+ }
+
reset_handle(ptp);
- erts_smp_runq_unlock(runq);
switch (ptp->type) {
- case ERTS_PORT_TASK_FREE:
case ERTS_PORT_TASK_TIMEOUT:
break;
case ERTS_PORT_TASK_INPUT:
- erts_stale_drv_select(pp->id, ptp->event, DO_READ, 1);
+ erts_stale_drv_select(pp->common.id,
+ ptp->u.alive.td.io.event,
+ DO_READ,
+ 1);
break;
case ERTS_PORT_TASK_OUTPUT:
- erts_stale_drv_select(pp->id, ptp->event, DO_WRITE, 1);
+ erts_stale_drv_select(pp->common.id,
+ ptp->u.alive.td.io.event,
+ DO_WRITE,
+ 1);
break;
case ERTS_PORT_TASK_EVENT:
- erts_stale_drv_select(pp->id, ptp->event, 0, 1);
+ erts_stale_drv_select(pp->common.id,
+ ptp->u.alive.td.io.event,
+ 0,
+ 1);
break;
case ERTS_PORT_TASK_DIST_CMD:
break;
+ case ERTS_PORT_TASK_PROC_SIG: {
+ ErtsProc2PortSigData *sigdp = &ptp->u.alive.td.psig.data;
+ if (!pp->sched.taskq.bpq)
+ ptp->u.alive.td.psig.callback(NULL,
+ ERTS_PORT_SFLG_INVALID,
+ ERTS_PROC2PORT_SIG_ABORT_CLOSED,
+ sigdp);
+ else {
+ ErlDrvSizeT size = erts_proc2port_sig_command_data_size(sigdp);
+ ptp->u.alive.td.psig.callback(NULL,
+ ERTS_PORT_SFLG_INVALID,
+ ERTS_PROC2PORT_SIG_ABORT_CLOSED,
+ sigdp);
+ aborted_proc2port_data(pp, size);
+ }
+ break;
+ }
default:
erl_exit(ERTS_ABORT_EXIT,
"Invalid port task type: %d\n",
(int) ptp->type);
}
- port_task_free(ptp);
-
- erts_smp_runq_lock(runq);
- ptp = pop_task(ptqps[i]);
+ aborted_port_task:
+ schedule_port_task_free(ptp);
}
}
- ASSERT(!pp->sched.taskq || !pp->sched.taskq->first);
+ erts_smp_atomic32_read_band_nob(&pp->sched.flags,
+ ~(ERTS_PTS_FLG_HAVE_BUSY_TASKS
+ |ERTS_PTS_FLG_HAVE_TASKS));
+
+ /*
+ * Schedule cleanup of port structure...
+ */
+#ifdef ERTS_SMP
+ erts_schedule_thr_prgr_later_op(release_port,
+ (void *) pp,
+ &pp->common.u.release);
+#else
+ pp->cleanup = 1;
+#endif
}
int
erts_port_is_scheduled(Port *pp)
{
- int res;
- ErtsRunQueue *runq = erts_port_runq(pp);
- res = pp->sched.taskq || pp->sched.exe_taskq;
- erts_smp_runq_unlock(runq);
- return res;
+ erts_aint32_t flags = erts_smp_atomic32_read_acqb(&pp->sched.flags);
+ return (flags & (ERTS_PTS_FLG_IN_RUNQ|ERTS_PTS_FLG_EXEC)) != 0;
}
#ifdef ERTS_SMP
-ErtsMigrateResult
-erts_port_migrate(Port *prt, int *prt_locked,
- ErtsRunQueue *from_rq, int *from_locked,
- ErtsRunQueue *to_rq, int *to_locked)
+void
+erts_enqueue_port(ErtsRunQueue *rq, Port *pp)
{
- ERTS_SMP_LC_ASSERT(*from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- if (!*from_locked || !*to_locked) {
- if (from_rq < to_rq) {
- if (!*to_locked) {
- if (!*from_locked)
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- else if (erts_smp_runq_trylock(from_rq) == EBUSY) {
- erts_smp_runq_unlock(to_rq);
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- }
- else {
- if (!*from_locked) {
- if (!*to_locked)
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- else if (erts_smp_runq_trylock(to_rq) == EBUSY) {
- erts_smp_runq_unlock(from_rq);
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- }
- *to_locked = *from_locked = 1;
- }
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- /* Refuse to migrate to a suspended run queue */
- if (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
- return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED;
- if (from_rq != (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue))
- return ERTS_MIGRATE_FAILED_RUNQ_CHANGED;
- if (!ERTS_PORT_IS_IN_RUNQ(from_rq, prt))
- return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ;
- dequeue_port(from_rq, prt);
- erts_smp_atomic_set_nob(&prt->run_queue, (erts_aint_t) to_rq);
- enqueue_port(to_rq, prt);
- return ERTS_MIGRATE_SUCCESS;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+ ASSERT(rq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue));
+ ASSERT(erts_smp_atomic32_read_nob(&pp->sched.flags) & ERTS_PTS_FLG_IN_RUNQ);
+ enqueue_port(rq, pp);
+}
+
+Port *
+erts_dequeue_port(ErtsRunQueue *rq)
+{
+ Port *pp;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+ pp = pop_port(rq);
+ ASSERT(!pp
+ || rq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue));
+ ASSERT(!pp || (erts_smp_atomic32_read_nob(&pp->sched.flags)
+ & ERTS_PTS_FLG_IN_RUNQ));
+ return pp;
}
#endif
@@ -1120,5 +1977,5 @@ erts_port_task_init(void)
erts_smp_atomic_init_nob(&erts_port_task_outstanding_io_tasks,
(erts_aint_t) 0);
init_port_task_alloc();
- init_port_taskq_alloc();
+ init_busy_caller_table_alloc();
}
diff --git a/erts/emulator/beam/erl_port_task.h b/erts/emulator/beam/erl_port_task.h
index d7104e1143..ae6cd69ae2 100644
--- a/erts/emulator/beam/erl_port_task.h
+++ b/erts/emulator/beam/erl_port_task.h
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2006-2011. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2012. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -27,6 +27,9 @@
#define ERTS_PORT_TASK_H_BASIC_TYPES__
#include "erl_sys_driver.h"
#include "erl_smp.h"
+#define ERL_PORT_GET_PORT_TYPE_ONLY__
+#include "erl_port.h"
+#undef ERL_PORT_GET_PORT_TYPE_ONLY__
typedef erts_smp_atomic_t ErtsPortTaskHandle;
#endif
@@ -43,13 +46,19 @@ typedef erts_smp_atomic_t ErtsPortTaskHandle;
#define ERTS_INCLUDE_SCHEDULER_INTERNALS
#endif
+#define ERTS_PT_FLG_WAIT_BUSY (1 << 0)
+#define ERTS_PT_FLG_SIG_DEP (1 << 1)
+#define ERTS_PT_FLG_NOSUSPEND (1 << 2)
+#define ERTS_PT_FLG_REF (1 << 3)
+#define ERTS_PT_FLG_BAD_OUTPUT (1 << 4)
+
typedef enum {
- ERTS_PORT_TASK_FREE,
ERTS_PORT_TASK_INPUT,
ERTS_PORT_TASK_OUTPUT,
ERTS_PORT_TASK_EVENT,
ERTS_PORT_TASK_TIMEOUT,
- ERTS_PORT_TASK_DIST_CMD
+ ERTS_PORT_TASK_DIST_CMD,
+ ERTS_PORT_TASK_PROC_SIG
} ErtsPortTaskType;
#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
@@ -57,19 +66,76 @@ typedef enum {
extern erts_smp_atomic_t erts_port_task_outstanding_io_tasks;
#endif
+#define ERTS_PTS_FLG_IN_RUNQ (((erts_aint32_t) 1) << 0)
+#define ERTS_PTS_FLG_EXEC (((erts_aint32_t) 1) << 1)
+#define ERTS_PTS_FLG_HAVE_TASKS (((erts_aint32_t) 1) << 2)
+#define ERTS_PTS_FLG_EXIT (((erts_aint32_t) 1) << 3)
+#define ERTS_PTS_FLG_BUSY_PORT (((erts_aint32_t) 1) << 4)
+#define ERTS_PTS_FLG_BUSY_PORT_Q (((erts_aint32_t) 1) << 5)
+#define ERTS_PTS_FLG_CHK_UNSET_BUSY_PORT_Q (((erts_aint32_t) 1) << 6)
+#define ERTS_PTS_FLG_HAVE_BUSY_TASKS (((erts_aint32_t) 1) << 7)
+#define ERTS_PTS_FLG_HAVE_NS_TASKS (((erts_aint32_t) 1) << 8)
+#define ERTS_PTS_FLG_PARALLELISM (((erts_aint32_t) 1) << 9)
+#define ERTS_PTS_FLG_FORCE_SCHED (((erts_aint32_t) 1) << 10)
+
+#define ERTS_PTS_FLGS_BUSY \
+ (ERTS_PTS_FLG_BUSY_PORT | ERTS_PTS_FLG_BUSY_PORT_Q)
+
+#define ERTS_PTS_FLGS_FORCE_SCHEDULE_OP \
+ (ERTS_PTS_FLG_EXIT \
+ | ERTS_PTS_FLG_HAVE_BUSY_TASKS \
+ | ERTS_PTS_FLG_HAVE_TASKS \
+ | ERTS_PTS_FLG_EXEC \
+ | ERTS_PTS_FLG_FORCE_SCHED)
+
+#define ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_HIGH 8192
+#define ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_LOW 4096
+
+typedef struct {
+ ErlDrvSizeT high;
+ erts_smp_atomic_t low;
+ erts_smp_atomic_t size;
+} ErtsPortTaskBusyPortQ;
+
typedef struct ErtsPortTask_ ErtsPortTask;
-typedef struct ErtsPortTaskQueue_ ErtsPortTaskQueue;
+typedef struct ErtsPortTaskBusyCallerTable_ ErtsPortTaskBusyCallerTable;
+typedef struct ErtsPortTaskHandleList_ ErtsPortTaskHandleList;
typedef struct {
Port *next;
- Port *prev;
- ErtsPortTaskQueue *taskq;
- ErtsPortTaskQueue *exe_taskq;
+ struct {
+ struct {
+ struct {
+ ErtsPortTask *first;
+ ErtsPortTask *last;
+ ErtsPortTaskBusyCallerTable *table;
+ ErtsPortTaskHandleList *nosuspend;
+ } busy;
+ ErtsPortTask *first;
+ } local;
+ struct {
+ ErtsPortTask *first;
+ ErtsPortTask *last;
+ } in;
+ ErtsPortTaskBusyPortQ *bpq;
+ } taskq;
+ erts_smp_atomic32_t flags;
+#ifdef ERTS_SMP
+ erts_mtx_t mtx;
+#endif
} ErtsPortTaskSched;
ERTS_GLB_INLINE void erts_port_task_handle_init(ErtsPortTaskHandle *pthp);
ERTS_GLB_INLINE int erts_port_task_is_scheduled(ErtsPortTaskHandle *pthp);
-ERTS_GLB_INLINE void erts_port_task_init_sched(ErtsPortTaskSched *ptsp);
+ERTS_GLB_INLINE void erts_port_task_pre_init_sched(ErtsPortTaskSched *ptsp,
+ ErtsPortTaskBusyPortQ *bpq);
+ERTS_GLB_INLINE void erts_port_task_init_sched(ErtsPortTaskSched *ptsp,
+ Eterm id);
+ERTS_GLB_INLINE void erts_port_task_fini_sched(ErtsPortTaskSched *ptsp);
+ERTS_GLB_INLINE void erts_port_task_sched_lock(ErtsPortTaskSched *ptsp);
+ERTS_GLB_INLINE void erts_port_task_sched_unlock(ErtsPortTaskSched *ptsp);
+ERTS_GLB_INLINE int erts_port_task_sched_lock_is_locked(ErtsPortTaskSched *ptsp);
+
#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
ERTS_GLB_INLINE int erts_port_task_have_outstanding_io_tasks(void);
#endif
@@ -88,13 +154,75 @@ erts_port_task_is_scheduled(ErtsPortTaskHandle *pthp)
return ((void *) erts_smp_atomic_read_nob(pthp)) != NULL;
}
+ERTS_GLB_INLINE void erts_port_task_pre_init_sched(ErtsPortTaskSched *ptsp,
+ ErtsPortTaskBusyPortQ *bpq)
+{
+ if (bpq) {
+ erts_aint_t low = (erts_aint_t) ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_LOW;
+ erts_smp_atomic_init_nob(&bpq->low, low);
+ bpq->high = (ErlDrvSizeT) ERTS_PORT_TASK_DEFAULT_BUSY_PORT_Q_HIGH;
+ erts_smp_atomic_init_nob(&bpq->size, (erts_aint_t) 0);
+ }
+ ptsp->taskq.bpq = bpq;
+}
+
ERTS_GLB_INLINE void
-erts_port_task_init_sched(ErtsPortTaskSched *ptsp)
+erts_port_task_init_sched(ErtsPortTaskSched *ptsp, Eterm instr_id)
{
+#ifdef ERTS_SMP
+ char *lock_str = "port_sched_lock";
+#endif
ptsp->next = NULL;
- ptsp->prev = NULL;
- ptsp->taskq = NULL;
- ptsp->exe_taskq = NULL;
+ ptsp->taskq.local.busy.first = NULL;
+ ptsp->taskq.local.busy.last = NULL;
+ ptsp->taskq.local.busy.table = NULL;
+ ptsp->taskq.local.busy.nosuspend = NULL;
+ ptsp->taskq.local.first = NULL;
+ ptsp->taskq.in.first = NULL;
+ ptsp->taskq.in.last = NULL;
+ erts_smp_atomic32_init_nob(&ptsp->flags, 0);
+#ifdef ERTS_SMP
+#ifdef ERTS_ENABLE_LOCK_COUNT
+ if (!(erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK))
+ lock_str = NULL;
+#endif
+ erts_mtx_init_x(&ptsp->mtx, lock_str, instr_id);
+#endif
+}
+
+ERTS_GLB_INLINE void
+erts_port_task_sched_lock(ErtsPortTaskSched *ptsp)
+{
+#ifdef ERTS_SMP
+ erts_mtx_lock(&ptsp->mtx);
+#endif
+}
+
+ERTS_GLB_INLINE void
+erts_port_task_sched_unlock(ErtsPortTaskSched *ptsp)
+{
+#ifdef ERTS_SMP
+ erts_mtx_unlock(&ptsp->mtx);
+#endif
+}
+
+ERTS_GLB_INLINE int
+erts_port_task_sched_lock_is_locked(ErtsPortTaskSched *ptsp)
+{
+#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
+ return erts_lc_mtx_is_locked(&ptsp->mtx);
+#else
+ return 0;
+#endif
+}
+
+
+ERTS_GLB_INLINE void
+erts_port_task_fini_sched(ErtsPortTaskSched *ptsp)
+{
+#ifdef ERTS_SMP
+ erts_mtx_destroy(&ptsp->mtx);
+#endif
}
#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
@@ -115,21 +243,20 @@ int erts_port_task_execute(ErtsRunQueue *, Port **);
void erts_port_task_init(void);
#endif
-int erts_port_task_abort(Eterm id, ErtsPortTaskHandle *);
+int erts_port_task_abort(ErtsPortTaskHandle *);
+void erts_port_task_abort_nosuspend_tasks(Port *);
+
int erts_port_task_schedule(Eterm,
ErtsPortTaskHandle *,
ErtsPortTaskType,
- ErlDrvEvent,
- ErlDrvEventData);
+ ...);
void erts_port_task_free_port(Port *);
int erts_port_is_scheduled(Port *);
+ErtsProc2PortSigData *erts_port_task_alloc_p2p_sig_data(void);
+
#ifdef ERTS_SMP
-ErtsMigrateResult erts_port_migrate(Port *,
- int *,
- ErtsRunQueue *,
- int *,
- ErtsRunQueue *,
- int *);
+void erts_enqueue_port(ErtsRunQueue *rq, Port *pp);
+Port *erts_dequeue_port(ErtsRunQueue *rq);
#endif
#undef ERTS_INCLUDE_SCHEDULER_INTERNALS
#endif /* ERL_PORT_TASK_H__ */
diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c
index 34da9cab84..2320b64295 100644
--- a/erts/emulator/beam/erl_printf_term.c
+++ b/erts/emulator/beam/erl_printf_term.c
@@ -437,7 +437,10 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
}
break;
case BINARY_DEF:
- {
+ if (header_is_bin_matchstate(*boxed_val(wobj))) {
+ PRINT_STRING(res, fn, arg, "#MatchState");
+ }
+ else {
ProcBin* pb = (ProcBin *) binary_val(wobj);
if (pb->size == 1)
PRINT_STRING(res, fn, arg, "<<1 byte>>");
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index c5127bc29d..aaca4b5f59 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -42,6 +42,7 @@
#include "erl_thr_queue.h"
#include "erl_async.h"
#include "dtrace-wrapper.h"
+#include "erl_ptab.h"
#define ERTS_DELAYED_WAKEUP_INFINITY (~(Uint64) 0)
#define ERTS_DELAYED_WAKEUP_REDUCTIONS ((Uint64) CONTEXT_REDS/2)
@@ -97,34 +98,55 @@
#define HIGH_BIT (1 << PRIORITY_HIGH)
#define NORMAL_BIT (1 << PRIORITY_NORMAL)
#define LOW_BIT (1 << PRIORITY_LOW)
+#define PORT_BIT (1 << ERTS_PORT_PRIO_LEVEL)
-#define ERTS_MAYBE_SAVE_TERMINATING_PROCESS(P) \
-do { \
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx)); \
- if (saved_term_procs.end) \
- save_terminating_process((P)); \
-} while (0)
+#define ERTS_EMPTY_RUNQ(RQ) \
+ ((ERTS_RUNQ_FLGS_GET_NOB((RQ)) & ERTS_RUNQ_FLGS_QMASK) == 0 \
+ && (RQ)->misc.start == NULL)
-#define ERTS_EMPTY_RUNQ(RQ) \
- ((RQ)->len == 0 && (RQ)->misc.start == NULL)
+#undef RUNQ_READ_RQ
+#undef RUNQ_SET_RQ
+#define RUNQ_READ_RQ(X) ((ErtsRunQueue *) erts_smp_atomic_read_nob((X)))
+#define RUNQ_SET_RQ(X, RQ) erts_smp_atomic_set_nob((X), (erts_aint_t) (RQ))
+
+#ifdef DEBUG
+# if defined(ARCH_64) && !HALFWORD_HEAP
+# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
+ (RUNQ_SET_RQ((RQP), (0xdeadbeefdead0003LL | ((N) << 4)))
+# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
+do { \
+ ASSERT((RQP) != NULL); \
+ ASSERT(((((Uint) (RQP)) & ((Uint) 0x3))) == ((Uint) 0)); \
+ ASSERT((((Uint) (RQP)) & ~((Uint) 0xffff)) != ((Uint) 0xdeadbeefdead0000LL));\
+} while (0)
+# else
+# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
+ (RUNQ_SET_RQ((RQP), (0xdead0003 | ((N) << 4))))
+# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
+do { \
+ ASSERT((RQP) != NULL); \
+ ASSERT(((((UWord) (RQP)) & ((UWord) 1))) == ((UWord) 0)); \
+ ASSERT((((UWord) (RQP)) & ~((UWord) 0xffff)) != ((UWord) 0xdead0000)); \
+} while (0)
+# endif
+#else
+# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N)
+# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP)
+#endif
#define ERTS_EMPTY_RUNQ_PORTS(RQ) \
- ((RQ)->ports.info.len == 0 && (RQ)->misc.start == NULL)
+ (RUNQ_READ_LEN(&(RQ)->ports.info.len) == 0 && (RQ)->misc.start == NULL)
+
+const Process erts_invalid_process = {{ERTS_INVALID_PID}};
extern BeamInstr beam_apply[];
extern BeamInstr beam_exit[];
extern BeamInstr beam_continue_exit[];
-static Sint p_last;
-static Sint p_next;
-static Sint p_serial;
-static Uint p_serial_mask;
-static Uint p_serial_shift;
-
int erts_sched_compact_load;
Uint erts_no_schedulers;
-Uint erts_max_processes = ERTS_DEFAULT_MAX_PROCESSES;
-Uint erts_process_tab_index_mask;
+
+ErtsPTab erts_proc erts_align_attribute(ERTS_CACHE_LINE_SIZE);
int erts_sched_thread_suggested_stack_size = -1;
@@ -191,7 +213,7 @@ static struct {
struct {
int active_runqs;
int reds;
- int max_len;
+ erts_aint32_t max_len;
} prev_rise;
Uint n;
} balance_info;
@@ -211,8 +233,6 @@ erts_sched_stat_t erts_sched_stat;
static erts_tsd_key_t sched_data_key;
#endif
-static erts_smp_mtx_t proc_tab_mtx;
-
static erts_smp_atomic32_t function_calls;
#ifdef ERTS_SMP
@@ -234,7 +254,6 @@ typedef union {
static ErtsAlignedSchedulerSleepInfo *aligned_sched_sleep_info;
-Process** process_tab;
static Uint last_reductions;
static Uint last_exact_reductions;
Uint erts_default_process_flags;
@@ -250,29 +269,6 @@ struct erts_system_profile_flags_t erts_system_profile_flags;
#if ERTS_MAX_PROCESSES > 0x7fffffff
#error "Need to store process_count in another type"
#endif
-static erts_smp_atomic32_t process_count;
-
-typedef struct ErtsTermProcElement_ ErtsTermProcElement;
-struct ErtsTermProcElement_ {
- ErtsTermProcElement *next;
- ErtsTermProcElement *prev;
- int ix;
- union {
- struct {
- Eterm pid;
- SysTimeval spawned;
- SysTimeval exited;
- } process;
- struct {
- SysTimeval time;
- } bif_invocation;
- } u;
-};
-
-static struct {
- ErtsTermProcElement *start;
- ErtsTermProcElement *end;
-} saved_term_procs;
ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(misc_op_list,
ErtsMiscOpList,
@@ -334,8 +330,6 @@ do { \
* Local functions.
*/
-static void init_processes_bif(void);
-static void save_terminating_process(Process *p);
static void exec_misc_ops(ErtsRunQueue *);
static void print_function_from_pc(int to, void *to_arg, BeamInstr* x);
static int stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp,
@@ -366,6 +360,7 @@ dbg_chk_aux_work_val(erts_aint32_t value)
valid |= ERTS_SSI_AUX_WORK_MISC_THR_PRGR;
valid |= ERTS_SSI_AUX_WORK_DD;
valid |= ERTS_SSI_AUX_WORK_DD_THR_PRGR;
+ valid |= ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP;
#endif
#if HAVE_ERTS_MSEG
valid |= ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK;
@@ -402,6 +397,31 @@ erts_smp_lc_runq_is_locked(ErtsRunQueue *runq)
}
#endif
+
+static ERTS_INLINE Uint64
+ensure_later_proc_interval(Uint64 interval)
+{
+ return erts_smp_ensure_later_interval_nob(erts_ptab_interval(&erts_proc), interval);
+}
+
+Uint64
+erts_get_proc_interval(void)
+{
+ return erts_smp_current_interval_nob(erts_ptab_interval(&erts_proc));
+}
+
+Uint64
+erts_ensure_later_proc_interval(Uint64 interval)
+{
+ return ensure_later_proc_interval(interval);
+}
+
+Uint64
+erts_step_proc_interval(void)
+{
+ return erts_smp_step_interval_nob(erts_ptab_interval(&erts_proc));
+}
+
void
erts_pre_init_process(void)
{
@@ -447,11 +467,18 @@ erts_pre_init_process(void)
#endif
}
+#ifdef ERTS_SMP
+static void
+release_process(void *vproc)
+{
+ erts_smp_proc_dec_refc((Process *) vproc);
+}
+#endif
+
/* initialize the scheduler */
void
-erts_init_process(int ncpu)
+erts_init_process(int ncpu, int proc_tab_size)
{
- Uint proc_bits = ERTS_PROC_BITS;
#ifdef ERTS_SMP
erts_disable_proc_not_running_opt = 0;
@@ -460,25 +487,17 @@ erts_init_process(int ncpu)
init_proclist_alloc();
- erts_smp_atomic32_init_nob(&process_count, 0);
-
- if (erts_use_r9_pids_ports) {
- proc_bits = ERTS_R9_PROC_BITS;
- ASSERT(erts_max_processes <= (1 << ERTS_R9_PROC_BITS));
- }
-
- process_tab = (Process**) erts_alloc(ERTS_ALC_T_PROC_TABLE,
- erts_max_processes*sizeof(Process*));
- sys_memzero(process_tab, erts_max_processes * sizeof(Process*));
-
- erts_smp_mtx_init(&proc_tab_mtx, "proc_tab");
- p_last = -1;
- p_next = 0;
- p_serial = 0;
+ erts_ptab_init_table(&erts_proc,
+ ERTS_ALC_T_PROC_TABLE,
+#ifdef ERTS_SMP
+ release_process,
+#else
+ NULL,
+#endif
+ (ErtsPTabElementCommon *) &erts_invalid_process.common,
+ proc_tab_size,
+ "process_table");
- p_serial_shift = erts_fit_in_bits(erts_max_processes - 1);
- p_serial_mask = ((~(~((Uint) 0) << proc_bits)) >> p_serial_shift);
- erts_process_tab_index_mask = ~(~((Uint) 0) << p_serial_shift);
last_reductions = 0;
last_exact_reductions = 0;
erts_default_process_flags = 0;
@@ -488,7 +507,6 @@ void
erts_late_init_process(void)
{
int ix;
- init_processes_bif();
erts_smp_spinlock_init(&erts_sched_stat.lock, "sched_stat");
for (ix = 0; ix < ERTS_NO_PRIO_LEVELS; ix++) {
@@ -736,8 +754,9 @@ static ERTS_INLINE ErtsProcList *
proclist_create(Process *p)
{
ErtsProcList *plp = proclist_alloc();
- plp->pid = p->id;
- plp->started = p->started;
+ ensure_later_proc_interval(p->common.u.alive.started_interval);
+ plp->pid = p->common.id;
+ plp->started_interval = p->common.u.alive.started_interval;
return plp;
}
@@ -747,13 +766,6 @@ proclist_destroy(ErtsProcList *plp)
proclist_free(plp);
}
-static ERTS_INLINE int
-proclist_same(ErtsProcList *plp, Process *p)
-{
- return (plp->pid == p->id
- && erts_cmp_timeval(&plp->started, &p->started) == 0);
-}
-
ErtsProcList *
erts_proclist_create(Process *p)
{
@@ -766,12 +778,6 @@ erts_proclist_destroy(ErtsProcList *plp)
proclist_destroy(plp);
}
-int
-erts_proclist_same(ErtsProcList *plp, Process *p)
-{
- return proclist_same(plp, p);
-}
-
void *
erts_psd_set_init(Process *p, ErtsProcLocks plocks, int ix, void *data)
{
@@ -1229,7 +1235,8 @@ handle_async_ready_clean(ErtsAuxWorkData *awdp,
}
}
-#endif
+#endif /* ERTS_USE_ASYNC_READY_Q */
+
static ERTS_INLINE erts_aint32_t
handle_fix_alloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting)
@@ -1348,6 +1355,77 @@ handle_delayed_dealloc_thr_prgr(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, i
return aux_work & ~ERTS_SSI_AUX_WORK_DD_THR_PRGR;
}
+/*
+ * Handle scheduled thread progress later operations.
+ */
+#define ERTS_MAX_THR_PRGR_LATER_OPS 50
+
+static ERTS_INLINE erts_aint32_t
+handle_thr_prgr_later_op(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting)
+{
+ int lops;
+ ErtsThrPrgrVal current = haw_thr_prgr_current(awdp);
+
+ for (lops = 0; lops < ERTS_MAX_THR_PRGR_LATER_OPS; lops++) {
+ ErtsThrPrgrLaterOp *lop = awdp->later_op.first;
+ if (!erts_thr_progress_has_reached_this(current, lop->later))
+ return aux_work & ~ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP;
+ awdp->later_op.first = lop->next;
+ if (!awdp->later_op.first) {
+ awdp->later_op.last = NULL;
+ }
+ lop->func(lop->data);
+ if (!awdp->later_op.first) {
+ awdp->later_op.last = NULL;
+ unset_aux_work_flags(awdp->ssi,
+ ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP);
+ return aux_work & ~ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP;
+ }
+ }
+
+ return aux_work;
+}
+
+#endif /* ERTS_SMP */
+
+void
+erts_schedule_thr_prgr_later_op(void (*later_func)(void *),
+ void *later_data,
+ ErtsThrPrgrLaterOp *lop)
+{
+#ifndef ERTS_SMP
+ later_func(later_data);
+#else
+ ErtsSchedulerData *esdp;
+ ErtsAuxWorkData *awdp;
+ int request_wakeup = 1;
+
+ esdp = erts_get_scheduler_data();
+ ASSERT(esdp);
+ awdp = &esdp->aux_work_data;
+
+ lop->func = later_func;
+ lop->data = later_data;
+ lop->later = erts_thr_progress_later(esdp);
+ lop->next = NULL;
+ if (!awdp->later_op.last)
+ awdp->later_op.first = lop;
+ else {
+ ErtsThrPrgrLaterOp *last = awdp->later_op.last;
+ last->next = lop;
+ if (erts_thr_progress_equal(last->later, lop->later))
+ request_wakeup = 0;
+ }
+ awdp->later_op.last = lop;
+ set_aux_work_flags_wakeup_nob(awdp->ssi,
+ ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP);
+ if (request_wakeup)
+ erts_thr_progress_wakeup(esdp, lop->later);
+#endif
+}
+
+#ifdef ERTS_SMP
+
static erts_atomic32_t completed_dealloc_count;
static void
@@ -1460,37 +1538,32 @@ handle_reap_ports(ErtsAuxWorkData *awdp, erts_aint32_t aux_work, int waiting)
unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_REAP_PORTS);
awdp->esdp->run_queue->halt_in_progress = 1;
if (erts_smp_atomic32_dec_read_acqb(&erts_halt_progress) == 0) {
- int i;
+ int i, max = erts_ptab_max(&erts_port);
erts_smp_atomic32_set_nob(&erts_halt_progress, 1);
- for (i = 0; i < erts_max_ports; i++) {
- Port *prt = &erts_port[i];
- erts_smp_port_state_lock(prt);
- if ((prt->status & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP
- | ERTS_PORT_SFLG_HALT))) {
- erts_smp_port_state_unlock(prt);
+ for (i = 0; i < max; i++) {
+ erts_aint32_t state;
+ Port *prt = erts_pix2port(i);
+ if (!prt)
continue;
- }
- /* We need to set the halt flag - get the port lock */
-#ifdef ERTS_SMP
- erts_smp_atomic_inc_nob(&prt->refc);
-#endif
- erts_smp_port_state_unlock(prt);
-#ifdef ERTS_SMP
- erts_smp_mtx_lock(prt->lock);
-#endif
- if ((prt->status & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP
- | ERTS_PORT_SFLG_HALT))) {
- erts_port_release(prt);
- continue;
- }
- erts_port_status_bor_set(prt, ERTS_PORT_SFLG_HALT);
- erts_smp_atomic32_inc_nob(&erts_halt_progress);
- if (prt->status & (ERTS_PORT_SFLG_EXITING
- | ERTS_PORT_SFLG_CLOSING)) {
- erts_port_release(prt);
+ state = erts_atomic32_read_acqb(&prt->state);
+ if (state & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP
+ | ERTS_PORT_SFLG_HALT))
continue;
+
+ /* We need to set the halt flag - get the port lock */
+
+ erts_smp_port_lock(prt);
+
+ state = erts_atomic32_read_nob(&prt->state);
+ if (!(state & (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP
+ | ERTS_PORT_SFLG_HALT))) {
+ state = erts_atomic32_read_bor_relb(&prt->state,
+ ERTS_PORT_SFLG_HALT);
+ erts_smp_atomic32_inc_nob(&erts_halt_progress);
+ if (!(state & (ERTS_PORT_SFLG_EXITING|ERTS_PORT_SFLG_CLOSING)))
+ erts_deliver_port_exit(prt, prt->common.id, am_killed, 0);
}
- erts_do_exit_port(prt, prt->id, am_killed);
+
erts_port_release(prt);
}
if (erts_smp_atomic32_dec_read_nob(&erts_halt_progress) == 0) {
@@ -1573,6 +1646,11 @@ handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t orig_aux_work, int waiting)
| ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC),
handle_fix_alloc);
+#ifdef ERTS_SMP
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP,
+ handle_thr_prgr_later_op);
+#endif
+
#if ERTS_USE_ASYNC_READY_Q
HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_ASYNC_READY,
handle_async_ready);
@@ -1763,8 +1841,8 @@ sched_waiting_sys(Uint no, ErtsRunQueue *rq)
{
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
ASSERT(rq->waiting >= 0);
- rq->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK
- | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
+ (void) ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
rq->waiting++;
rq->waiting *= -1;
rq->woken = 0;
@@ -1840,8 +1918,8 @@ static ERTS_INLINE void
sched_waiting(Uint no, ErtsRunQueue *rq)
{
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- rq->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK
- | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
+ (void) ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
if (rq->waiting < 0)
rq->waiting--;
else
@@ -1873,9 +1951,8 @@ ongoing_multi_scheduling_block(void)
static ERTS_INLINE void
empty_runq(ErtsRunQueue *rq)
{
- erts_aint32_t oifls = erts_smp_atomic32_read_band_nob(&rq->info_flags,
- ~ERTS_RUNQ_IFLG_NONEMPTY);
- if (oifls & ERTS_RUNQ_IFLG_NONEMPTY) {
+ Uint32 old_flags = ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_NONEMPTY|ERTS_RUNQ_FLG_PROTECTED);
+ if (old_flags & ERTS_RUNQ_FLG_NONEMPTY) {
#ifdef DEBUG
erts_aint32_t empty = erts_smp_atomic32_read_nob(&no_empty_run_queues);
/*
@@ -1891,9 +1968,8 @@ empty_runq(ErtsRunQueue *rq)
static ERTS_INLINE void
non_empty_runq(ErtsRunQueue *rq)
{
- erts_aint32_t oifls = erts_smp_atomic32_read_bor_nob(&rq->info_flags,
- ERTS_RUNQ_IFLG_NONEMPTY);
- if (!(oifls & ERTS_RUNQ_IFLG_NONEMPTY)) {
+ Uint32 old_flags = ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_NONEMPTY);
+ if (!(old_flags & ERTS_RUNQ_FLG_NONEMPTY)) {
#ifdef DEBUG
erts_aint32_t empty = erts_smp_atomic32_read_nob(&no_empty_run_queues);
/*
@@ -2508,19 +2584,16 @@ try_inc_no_active_runqs(int active)
static ERTS_INLINE int
chk_wake_sched(ErtsRunQueue *crq, int ix, int activate)
{
- erts_aint32_t iflgs;
+ Uint32 flags;
ErtsRunQueue *wrq;
if (crq->ix == ix)
return 0;
wrq = ERTS_RUNQ_IX(ix);
- iflgs = erts_smp_atomic32_read_nob(&wrq->info_flags);
- if (!(iflgs & (ERTS_RUNQ_IFLG_SUSPENDED|ERTS_RUNQ_IFLG_NONEMPTY))) {
+ flags = ERTS_RUNQ_FLGS_GET(wrq);
+ if (!(flags & (ERTS_RUNQ_FLG_SUSPENDED|ERTS_RUNQ_FLG_NONEMPTY))) {
if (activate) {
- if (try_inc_no_active_runqs(ix+1)) {
- erts_smp_xrunq_lock(crq, wrq);
- wrq->flags &= ~ERTS_RUNQ_FLG_INACTIVE;
- erts_smp_xrunq_unlock(crq, wrq);
- }
+ if (try_inc_no_active_runqs(ix+1))
+ (void) ERTS_RUNQ_FLGS_UNSET(wrq, ERTS_RUNQ_FLG_INACTIVE);
}
wake_scheduler(wrq, 0);
return 1;
@@ -2587,9 +2660,7 @@ erts_sched_notify_check_cpu_bind(void)
int ix;
for (ix = 0; ix < erts_no_run_queues; ix++) {
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- rq->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND;
- erts_smp_runq_unlock(rq);
+ (void) ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_CHK_CPU_BIND);
wake_scheduler(rq, 0);
}
#else
@@ -2598,409 +2669,547 @@ erts_sched_notify_check_cpu_bind(void)
}
-#ifdef ERTS_SMP
+static ERTS_INLINE void
+enqueue_process(ErtsRunQueue *runq, int prio, Process *p)
+{
+ ErtsRunPrioQueue *rpq;
-ErtsRunQueue *
-erts_prepare_emigrate(ErtsRunQueue *c_rq, ErtsRunQueueInfo *c_rqi, int prio)
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
+
+ erts_smp_inc_runq_len(runq, &runq->procs.prio_info[prio], prio);
+
+ if (prio == PRIORITY_LOW) {
+ p->schedule_count = RESCHEDULE_LOW;
+ rpq = &runq->procs.prio[PRIORITY_NORMAL];
+ }
+ else {
+ p->schedule_count = 1;
+ rpq = &runq->procs.prio[prio];
+ }
+
+ p->next = NULL;
+ if (rpq->last)
+ rpq->last->next = p;
+ else
+ rpq->first = p;
+ rpq->last = p;
+}
+
+
+static ERTS_INLINE void
+unqueue_process(ErtsRunQueue *runq,
+ ErtsRunPrioQueue *rpq,
+ ErtsRunQueueInfo *rqi,
+ int prio,
+ Process *prev_proc,
+ Process *proc)
{
- ASSERT(ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio));
- ASSERT(ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio)
- || c_rqi->len >= c_rqi->migrate.limit.this);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- while (1) {
- ErtsRunQueue *n_rq = c_rqi->migrate.runq;
- ERTS_DBG_VERIFY_VALID_RUNQP(n_rq);
- erts_smp_xrunq_lock(c_rq, n_rq);
-
- /*
- * erts_smp_xrunq_lock() may release lock on c_rq! We have
- * to check that we still want to emigrate and emigrate
- * to the same run queue as before.
- */
+ if (prev_proc)
+ prev_proc->next = proc->next;
+ else
+ rpq->first = proc->next;
+ if (!proc->next)
+ rpq->last = prev_proc;
- if (ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio)) {
- Uint32 force = (ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio)
- | (c_rq->flags & ERTS_RUNQ_FLG_INACTIVE));
- if (force || c_rqi->len > c_rqi->migrate.limit.this) {
- ErtsRunQueueInfo *n_rqi;
- /* We still want to emigrate */
-
- if (n_rq != c_rqi->migrate.runq) {
- /* Ahh... run queue changed; need to do it all over again... */
- erts_smp_runq_unlock(n_rq);
- continue;
- }
- else {
+ if (!rpq->first)
+ rpq->last = NULL;
- if (prio == ERTS_PORT_PRIO_LEVEL)
- n_rqi = &n_rq->ports.info;
- else
- n_rqi = &n_rq->procs.prio_info[prio];
+ erts_smp_dec_runq_len(runq, rqi, prio);
+}
- if (force || (n_rqi->len < c_rqi->migrate.limit.other)) {
- /* emigrate ... */
- return n_rq;
- }
- }
- }
- }
- ASSERT(n_rq != c_rq);
- erts_smp_runq_unlock(n_rq);
- if (!(c_rq->flags & ERTS_RUNQ_FLG_INACTIVE)) {
- /* No more emigrations to this runq */
- ERTS_UNSET_RUNQ_FLG_EMIGRATE(c_rq->flags, prio);
- ERTS_DBG_SET_INVALID_RUNQP(c_rqi->migrate.runq, 0x3);
- }
+static ERTS_INLINE Process *
+dequeue_process(ErtsRunQueue *runq, int prio_q, erts_aint32_t *statep)
+{
+ erts_aint32_t state;
+ int prio;
+ ErtsRunPrioQueue *rpq;
+ ErtsRunQueueInfo *rqi;
+ Process *p;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
+
+ ASSERT(PRIORITY_NORMAL == prio_q
+ || PRIORITY_HIGH == prio_q
+ || PRIORITY_MAX == prio_q);
+
+ rpq = &runq->procs.prio[prio_q];
+ p = rpq->first;
+ if (!p)
+ return NULL;
+
+ ERTS_SMP_DATA_DEPENDENCY_READ_MEMORY_BARRIER;
+
+ state = erts_smp_atomic32_read_nob(&p->state);
+ if (statep)
+ *statep = state;
+
+ prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+
+ rqi = &runq->procs.prio_info[prio];
+
+ if (p)
+ unqueue_process(runq, rpq, rqi, prio, NULL, p);
+
+ return p;
+}
+
+static ERTS_INLINE int
+check_requeue_process(ErtsRunQueue *rq, int prio_q)
+{
+ ErtsRunPrioQueue *rpq = &rq->procs.prio[prio_q];
+ Process *p = rpq->first;
+ if (--p->schedule_count > 0 && p != rpq->last) {
+ /* reschedule */
+ rpq->first = p->next;
+ rpq->last->next = p;
+ rpq->last = p;
+ p->next = NULL;
+ return 1;
+ }
+ return 0;
+}
+
+#ifdef ERTS_SMP
+
+static ErtsRunQueue *
+check_immigration_need(ErtsRunQueue *c_rq, ErtsMigrationPath *mp, int prio)
+{
+ int len;
+ Uint32 f_flags, f_rq_flags;
+ ErtsRunQueue *f_rq;
+
+ f_flags = mp->prio[prio].flags;
+
+ ASSERT(ERTS_CHK_RUNQ_FLG_IMMIGRATE(mp->flags, prio));
+ f_rq = mp->prio[prio].runq;
+ if (!f_rq)
return NULL;
+
+ f_rq_flags = ERTS_RUNQ_FLGS_GET(f_rq);
+ if (f_rq_flags & ERTS_RUNQ_FLG_PROTECTED)
+ return NULL;
+
+ if (ERTS_CHK_RUNQ_FLG_EVACUATE(f_flags, prio))
+ return f_rq;
+
+ if (f_rq_flags & ERTS_RUNQ_FLG_INACTIVE)
+ return f_rq;
+
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&c_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&c_rq->procs.prio_info[prio].len);
+
+ if (len < mp->prio[prio].limit.this) {
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&f_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&f_rq->procs.prio_info[prio].len);
+
+ if (len > mp->prio[prio].limit.other)
+ return f_rq;
}
+ return NULL;
}
static void
-immigrate(ErtsRunQueue *rq)
+immigrate(ErtsRunQueue *c_rq, ErtsMigrationPath *mp)
{
- int prio;
+ Uint32 iflags, iflag;
+ erts_smp_runq_unlock(c_rq);
- ASSERT(rq->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK);
+ ASSERT(erts_thr_progress_is_managed_thread());
- for (prio = 0; prio < ERTS_NO_PRIO_LEVELS; prio++) {
- if (ERTS_CHK_RUNQ_FLG_IMMIGRATE(rq->flags, prio)) {
- ErtsRunQueueInfo *rqi = (prio == ERTS_PORT_PRIO_LEVEL
- ? &rq->ports.info
- : &rq->procs.prio_info[prio]);
- ErtsRunQueue *from_rq = rqi->migrate.runq;
- int rq_locked, from_rq_locked;
+ iflags = mp->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK;
- ERTS_DBG_VERIFY_VALID_RUNQP(from_rq);
+ iflag = iflags & -iflags;
- rq_locked = 1;
- from_rq_locked = 1;
- erts_smp_xrunq_lock(rq, from_rq);
- /*
- * erts_smp_xrunq_lock() may release lock on rq! We have
- * to check that we still want to immigrate from the same
- * run queue as before.
- */
- if (ERTS_CHK_RUNQ_FLG_IMMIGRATE(rq->flags, prio)
- && from_rq == rqi->migrate.runq) {
- ErtsRunQueueInfo *from_rqi = (prio == ERTS_PORT_PRIO_LEVEL
- ? &from_rq->ports.info
- : &from_rq->procs.prio_info[prio]);
- if ((ERTS_CHK_RUNQ_FLG_EVACUATE(rq->flags, prio)
- && ERTS_CHK_RUNQ_FLG_EVACUATE(from_rq->flags, prio)
- && from_rqi->len)
- || (from_rqi->len > rqi->migrate.limit.other
- && rqi->len < rqi->migrate.limit.this)) {
- if (prio == ERTS_PORT_PRIO_LEVEL) {
- Port *prt = from_rq->ports.start;
- if (prt) {
- int prt_locked = 0;
- (void) erts_port_migrate(prt, &prt_locked,
- from_rq, &from_rq_locked,
- rq, &rq_locked);
- if (prt_locked)
- erts_smp_port_unlock(prt);
- }
- }
- else {
- Process *proc;
- ErtsRunPrioQueue *from_rpq;
- from_rpq = (prio == PRIORITY_LOW
- ? &from_rq->procs.prio[PRIORITY_NORMAL]
- : &from_rq->procs.prio[prio]);
- for (proc = from_rpq->first; proc; proc = proc->next)
- if (proc->prio == prio && !proc->bound_runq)
- break;
- if (proc) {
- ErtsProcLocks proc_locks = 0;
- (void) erts_proc_migrate(proc, &proc_locks,
- from_rq, &from_rq_locked,
- rq, &rq_locked);
- if (proc_locks)
- erts_smp_proc_unlock(proc, proc_locks);
- }
+ while (iflag) {
+ ErtsRunQueue *rq;
+ int prio;
+
+ switch (iflag) {
+ case (MAX_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_MAX;
+ break;
+ case (HIGH_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_HIGH;
+ break;
+ case (NORMAL_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_NORMAL;
+ break;
+ case (LOW_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_LOW;
+ break;
+ case (PORT_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = ERTS_PORT_PRIO_LEVEL;
+ break;
+ default:
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s(): Invalid immigrate queue mask",
+ __FILE__, __LINE__, __func__);
+ prio = 0;
+ break;
+ }
+
+ iflags &= ~iflag;
+ iflag = iflags & -iflags;
+
+ rq = check_immigration_need(c_rq, mp, prio);
+ if (rq) {
+ erts_smp_runq_lock(rq);
+ if (prio == ERTS_PORT_PRIO_LEVEL) {
+ Port *prt;
+ prt = erts_dequeue_port(rq);
+ if (prt)
+ RUNQ_SET_RQ(&prt->run_queue, c_rq);
+ erts_smp_runq_unlock(rq);
+ if (prt) {
+ /* port might terminate while we have no lock... */
+ rq = erts_port_runq(prt);
+ if (rq) {
+ if (rq != c_rq)
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s(): Internal error",
+ __FILE__, __LINE__, __func__);
+ erts_enqueue_port(c_rq, prt);
+ if (!iflag)
+ return; /* done */
+ erts_smp_runq_unlock(c_rq);
}
}
- else {
- ERTS_UNSET_RUNQ_FLG_IMMIGRATE(rq->flags, prio);
- ERTS_DBG_SET_INVALID_RUNQP(rqi->migrate.runq, 0x1);
+ }
+ else {
+ ErtsRunPrioQueue *rpq = &rq->procs.prio[prio == PRIORITY_LOW
+ ? PRIORITY_NORMAL
+ : prio];
+ Process *prev_proc = NULL;
+ Process *proc = rpq->first;
+ int rq_locked = 1;
+
+ while (proc) {
+ erts_aint32_t state;
+ state = erts_smp_atomic32_read_acqb(&proc->state);
+ if (!(ERTS_PSFLG_BOUND & state)
+ && (prio == (int) (ERTS_PSFLG_PRIO_MASK & state))) {
+ ErtsRunQueueInfo *rqi = &rq->procs.prio_info[prio];
+ unqueue_process(rq, rpq, rqi, prio, prev_proc, proc);
+ erts_smp_runq_unlock(rq);
+ RUNQ_SET_RQ(&proc->run_queue, c_rq);
+ rq_locked = 0;
+
+ erts_smp_runq_lock(c_rq);
+ enqueue_process(c_rq, prio, proc);
+ if (!iflag)
+ return; /* done */
+ erts_smp_runq_unlock(c_rq);
+ break;
+ }
+ prev_proc = proc;
+ proc = proc->next;
}
+ if (rq_locked)
+ erts_smp_runq_unlock(rq);
}
- if (from_rq_locked)
- erts_smp_runq_unlock(from_rq);
- if (!rq_locked)
- erts_smp_runq_lock(rq);
}
}
+
+ erts_smp_runq_lock(c_rq);
+}
+
+static ERTS_INLINE void
+suspend_run_queue(ErtsRunQueue *rq)
+{
+ erts_smp_atomic32_read_bor_nob(&rq->scheduler->ssi->flags,
+ ERTS_SSI_FLG_SUSPENDED);
+ (void) ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_SUSPENDED);
+
+ wake_scheduler(rq, 0);
}
+static void scheduler_ix_resume_wake(Uint ix);
+
+static ERTS_INLINE void
+resume_run_queue(ErtsRunQueue *rq)
+{
+ int pix;
+
+ erts_smp_runq_lock(rq);
+
+ (void) ERTS_RUNQ_FLGS_READ_BSET(rq,
+ (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_SUSPENDED),
+ (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
+
+ rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
+ for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
+ rq->procs.prio_info[pix].max_len = 0;
+ rq->procs.prio_info[pix].reds = 0;
+ }
+ rq->ports.info.max_len = 0;
+ rq->ports.info.reds = 0;
+ rq->max_len = 0;
+
+ erts_smp_runq_unlock(rq);
+
+ scheduler_ix_resume_wake(rq->ix);
+}
+
+typedef struct {
+ Process *first;
+ Process *last;
+} ErtsStuckBoundProcesses;
+
static void
-evacuate_run_queue(ErtsRunQueue *evac_rq, ErtsRunQueue *rq)
+schedule_bound_processes(ErtsRunQueue *rq,
+ ErtsStuckBoundProcesses *sbpp)
{
- Port *prt;
- int notify_to_rq = 0;
- int prio;
- int prt_locked = 0;
- int rq_locked = 0;
- int evac_rq_locked = 1;
- ErtsMigrateResult mres;
+ Process *proc, *next;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- erts_smp_runq_lock(evac_rq);
+ proc = sbpp->first;
+ while (proc) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state);
+ next = proc->next;
+ enqueue_process(rq, (int) (ERTS_PSFLG_PRIO_MASK & state), proc);
+ proc = next;
+ }
+}
- erts_smp_atomic32_read_bor_nob(&evac_rq->scheduler->ssi->flags,
- ERTS_SSI_FLG_SUSPENDED);
+static void
+evacuate_run_queue(ErtsRunQueue *rq,
+ ErtsStuckBoundProcesses *sbpp)
+{
+ int prio_q;
+ ErtsRunQueue *to_rq;
+ ErtsMigrationPaths *mps;
+ ErtsMigrationPath *mp;
- evac_rq->flags &= ~ERTS_RUNQ_FLGS_IMMIGRATE_QMASK;
- evac_rq->flags |= (ERTS_RUNQ_FLGS_EMIGRATE_QMASK
- | ERTS_RUNQ_FLGS_EVACUATE_QMASK
- | ERTS_RUNQ_FLG_SUSPENDED);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- erts_smp_atomic32_read_bor_nob(&evac_rq->info_flags, ERTS_RUNQ_IFLG_SUSPENDED);
- /*
- * Need to set up evacuation paths first since we
- * may release the run queue lock on evac_rq
- * when evacuating.
- */
- evac_rq->misc.evac_runq = rq;
- evac_rq->ports.info.migrate.runq = rq;
- for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++)
- evac_rq->procs.prio_info[prio].migrate.runq = rq;
+ (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
+
+ mps = erts_get_migration_paths_managed();
+ mp = &mps->mpath[rq->ix];
/* Evacuate scheduled misc ops */
- if (evac_rq->misc.start) {
- rq_locked = 1;
- erts_smp_xrunq_lock(evac_rq, rq);
- if (rq->misc.end)
- rq->misc.end->next = evac_rq->misc.start;
+ if (rq->misc.start) {
+ ErtsMiscOpList *start, *end;
+
+ to_rq = mp->misc_evac_runq;
+ if (!to_rq)
+ return;
+
+ start = rq->misc.start;
+ end = rq->misc.end;
+ rq->misc.start = NULL;
+ rq->misc.end = NULL;
+ erts_smp_runq_unlock(rq);
+
+ erts_smp_runq_lock(to_rq);
+ if (to_rq->misc.end)
+ to_rq->misc.end->next = start;
else
- rq->misc.start = evac_rq->misc.start;
- rq->misc.end = evac_rq->misc.end;
- evac_rq->misc.start = NULL;
- evac_rq->misc.end = NULL;
+ to_rq->misc.start = start;
+
+ to_rq->misc.end = end;
+ erts_smp_runq_unlock(to_rq);
+ smp_notify_inc_runq(to_rq);
+ erts_smp_runq_lock(to_rq);
}
- /* Evacuate scheduled ports */
- prt = evac_rq->ports.start;
- while (prt) {
- mres = erts_port_migrate(prt, &prt_locked,
- evac_rq, &evac_rq_locked,
- rq, &rq_locked);
- if (mres == ERTS_MIGRATE_SUCCESS)
- notify_to_rq = 1;
- if (prt_locked)
- erts_smp_port_unlock(prt);
- if (!evac_rq_locked) {
- evac_rq_locked = 1;
- erts_smp_runq_lock(evac_rq);
+ if (rq->ports.start) {
+ Port *prt;
+
+ to_rq = mp->prio[ERTS_PORT_PRIO_LEVEL].runq;
+ if (!to_rq)
+ return;
+
+ /* Evacuate scheduled ports */
+ prt = rq->ports.start;
+ while (prt) {
+ ErtsRunQueue *prt_rq;
+ prt = erts_dequeue_port(rq);
+ RUNQ_SET_RQ(&prt->run_queue, to_rq);
+ erts_smp_runq_unlock(rq);
+ /*
+ * The port might terminate while
+ * we have no lock on it...
+ */
+ prt_rq = erts_port_runq(prt);
+ if (prt_rq) {
+ if (prt_rq != to_rq)
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s() internal error\n",
+ __FILE__, __LINE__, __func__);
+ erts_enqueue_port(to_rq, prt);
+ erts_smp_runq_unlock(to_rq);
+ }
+ erts_smp_runq_lock(rq);
+ prt = rq->ports.start;
}
- prt = evac_rq->ports.start;
+ smp_notify_inc_runq(to_rq);
}
/* Evacuate scheduled processes */
- for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) {
+ for (prio_q = 0; prio_q < ERTS_NO_PROC_PRIO_QUEUES; prio_q++) {
+ erts_aint32_t state;
Process *proc;
+ int notify = 0;
+ to_rq = NULL;
- switch (prio) {
- case PRIORITY_MAX:
- case PRIORITY_HIGH:
- case PRIORITY_NORMAL:
- proc = evac_rq->procs.prio[prio].first;
- while (proc) {
- ErtsProcLocks proc_locks = 0;
-
- /* Bound processes are stuck... */
- while (proc->bound_runq) {
- proc = proc->next;
- if (!proc)
- goto end_of_proc;
- }
-
- mres = erts_proc_migrate(proc, &proc_locks,
- evac_rq, &evac_rq_locked,
- rq, &rq_locked);
- if (mres == ERTS_MIGRATE_SUCCESS)
- notify_to_rq = 1;
- if (proc_locks)
- erts_smp_proc_unlock(proc, proc_locks);
- if (!evac_rq_locked) {
- erts_smp_runq_lock(evac_rq);
- evac_rq_locked = 1;
- }
+ if (!mp->prio[prio_q].runq)
+ return;
+ if (prio_q == PRIORITY_NORMAL && !mp->prio[PRIORITY_LOW].runq)
+ return;
- proc = evac_rq->procs.prio[prio].first;
+ proc = dequeue_process(rq, prio_q, &state);
+ while (proc) {
+ if (ERTS_PSFLG_BOUND & state) {
+ /* Bound processes get stuck here... */
+ proc->next = NULL;
+ if (sbpp->last)
+ sbpp->last->next = proc;
+ else
+ sbpp->first = proc;
+ sbpp->last = proc;
}
+ else {
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+ erts_smp_runq_unlock(rq);
- end_of_proc:
+ to_rq = mp->prio[prio].runq;
+ RUNQ_SET_RQ(&proc->run_queue, to_rq);
-#ifdef DEBUG
- for (proc = evac_rq->procs.prio[prio].first;
- proc;
- proc = proc->next) {
- ASSERT(proc->bound_runq);
+ erts_smp_runq_lock(to_rq);
+ enqueue_process(to_rq, prio, proc);
+ erts_smp_runq_unlock(to_rq);
+ notify = 1;
+
+ erts_smp_runq_lock(rq);
}
-#endif
- break;
- case PRIORITY_LOW:
- break;
- default:
- ASSERT(!"Invalid process priority");
- break;
+ proc = dequeue_process(rq, prio_q, &state);
}
+ if (notify)
+ smp_notify_inc_runq(to_rq);
}
- if (rq_locked)
- erts_smp_runq_unlock(rq);
-
- if (evac_rq_locked)
- erts_smp_runq_unlock(evac_rq);
-
- if (notify_to_rq)
- smp_notify_inc_runq(rq);
-
- wake_scheduler(evac_rq, 0);
+ if (ERTS_EMPTY_RUNQ(rq))
+ empty_runq(rq);
}
static int
-try_steal_task_from_victim(ErtsRunQueue *rq, int *rq_lockedp, ErtsRunQueue *vrq)
+try_steal_task_from_victim(ErtsRunQueue *rq, int *rq_lockedp, ErtsRunQueue *vrq, Uint32 flags)
{
- Process *proc;
- int vrq_locked;
+ Uint32 procs_qmask = flags & ERTS_RUNQ_FLGS_PROCS_QMASK;
+ int max_prio_bit;
+ ErtsRunPrioQueue *rpq;
- if (*rq_lockedp)
- erts_smp_xrunq_lock(rq, vrq);
- else
- erts_smp_runq_lock(vrq);
- vrq_locked = 1;
+ if (*rq_lockedp) {
+ erts_smp_runq_unlock(rq);
+ *rq_lockedp = 0;
+ }
- ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked);
+ ERTS_SMP_LC_ASSERT(!erts_smp_lc_runq_is_locked(rq));
+
+ erts_smp_runq_lock(vrq);
if (rq->halt_in_progress)
- goto try_steal_port;
+ goto no_procs;
/*
* Check for a runnable process to steal...
*/
- switch (vrq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) {
- case MAX_BIT:
- case MAX_BIT|HIGH_BIT:
- case MAX_BIT|NORMAL_BIT:
- case MAX_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT:
- case MAX_BIT|HIGH_BIT|LOW_BIT:
- case MAX_BIT|NORMAL_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT|LOW_BIT:
- for (proc = vrq->procs.prio[PRIORITY_MAX].last;
- proc;
- proc = proc->prev) {
- if (!proc->bound_runq)
- break;
- }
- if (proc)
+ while (procs_qmask) {
+ Process *prev_proc;
+ Process *proc;
+
+ max_prio_bit = procs_qmask & -procs_qmask;
+ switch (max_prio_bit) {
+ case MAX_BIT:
+ rpq = &vrq->procs.prio[PRIORITY_MAX];
break;
- case HIGH_BIT:
- case HIGH_BIT|NORMAL_BIT:
- case HIGH_BIT|LOW_BIT:
- case HIGH_BIT|NORMAL_BIT|LOW_BIT:
- for (proc = vrq->procs.prio[PRIORITY_HIGH].last;
- proc;
- proc = proc->prev) {
- if (!proc->bound_runq)
- break;
- }
- if (proc)
+ case HIGH_BIT:
+ rpq = &vrq->procs.prio[PRIORITY_HIGH];
break;
- case NORMAL_BIT:
- case LOW_BIT:
- case NORMAL_BIT|LOW_BIT:
- for (proc = vrq->procs.prio[PRIORITY_NORMAL].last;
- proc;
- proc = proc->prev) {
- if (!proc->bound_runq)
- break;
- }
- if (proc)
+ case NORMAL_BIT:
+ case LOW_BIT:
+ rpq = &vrq->procs.prio[PRIORITY_NORMAL];
break;
- case 0:
- proc = NULL;
- break;
- default:
- ASSERT(!"Invalid queue mask");
- proc = NULL;
- break;
- }
+ case 0:
+ goto no_procs;
+ default:
+ ASSERT(!"Invalid queue mask");
+ goto no_procs;
+ }
+
+ prev_proc = NULL;
+ proc = rpq->first;
- if (proc) {
- ErtsProcLocks proc_locks = 0;
- int res;
- ErtsMigrateResult mres;
- mres = erts_proc_migrate(proc, &proc_locks,
- vrq, &vrq_locked,
- rq, rq_lockedp);
- if (proc_locks)
- erts_smp_proc_unlock(proc, proc_locks);
- res = !0;
- switch (mres) {
- case ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED:
- res = 0;
- case ERTS_MIGRATE_SUCCESS:
- if (vrq_locked)
+ while (proc) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state);
+ if (!(ERTS_PSFLG_BOUND & state)) {
+ /* Steal process */
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+ ErtsRunQueueInfo *rqi = &vrq->procs.prio_info[prio];
+ unqueue_process(vrq, rpq, rqi, prio, prev_proc, proc);
erts_smp_runq_unlock(vrq);
- return res;
- default: /* Other failures */
- break;
- }
- }
+ RUNQ_SET_RQ(&proc->run_queue, rq);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked);
+ erts_smp_runq_lock(rq);
+ *rq_lockedp = 1;
+ enqueue_process(rq, prio, proc);
+ return !0;
+ }
+ prev_proc = proc;
+ proc = proc->next;
+ }
- if (!vrq_locked) {
- if (*rq_lockedp)
- erts_smp_xrunq_lock(rq, vrq);
- else
- erts_smp_runq_lock(vrq);
- vrq_locked = 1;
+ procs_qmask &= ~max_prio_bit;
}
- try_steal_port:
+no_procs:
- ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(vrq));
/*
* Check for a runnable port to steal...
*/
- if (vrq->ports.info.len) {
- Port *prt = vrq->ports.end;
- int prt_locked = 0;
- int res;
- ErtsMigrateResult mres;
-
- mres = erts_port_migrate(prt, &prt_locked,
- vrq, &vrq_locked,
- rq, rq_lockedp);
- if (prt_locked)
- erts_smp_port_unlock(prt);
- res = !0;
- switch (mres) {
- case ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED:
- res = 0;
- case ERTS_MIGRATE_SUCCESS:
- if (vrq_locked)
- erts_smp_runq_unlock(vrq);
- return res;
- default: /* Other failures */
- break;
+ if (vrq->ports.start) {
+ ErtsRunQueue *prt_rq;
+ Port *prt = erts_dequeue_port(vrq);
+ RUNQ_SET_RQ(&prt->run_queue, rq);
+ erts_smp_runq_unlock(vrq);
+
+ /*
+ * The port might terminate while
+ * we have no lock on it...
+ */
+
+ prt_rq = erts_port_runq(prt);
+ if (!prt_rq)
+ return 0;
+ else {
+ if (prt_rq != rq)
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s() internal error\n",
+ __FILE__, __LINE__, __func__);
+ *rq_lockedp = 1;
+ erts_enqueue_port(rq, prt);
+ return !0;
}
}
- if (vrq_locked)
- erts_smp_runq_unlock(vrq);
+ erts_smp_runq_unlock(vrq);
return 0;
}
@@ -3010,9 +3219,10 @@ static ERTS_INLINE int
check_possible_steal_victim(ErtsRunQueue *rq, int *rq_lockedp, int vix)
{
ErtsRunQueue *vrq = ERTS_RUNQ_IX(vix);
- erts_aint32_t iflgs = erts_smp_atomic32_read_nob(&vrq->info_flags);
- if (iflgs & ERTS_RUNQ_IFLG_NONEMPTY)
- return try_steal_task_from_victim(rq, rq_lockedp, vrq);
+ Uint32 flags = ERTS_RUNQ_FLGS_GET(vrq);
+ if ((flags & (ERTS_RUNQ_FLG_NONEMPTY
+ | ERTS_RUNQ_FLG_PROTECTED)) == ERTS_RUNQ_FLG_NONEMPTY)
+ return try_steal_task_from_victim(rq, rq_lockedp, vrq, flags);
else
return 0;
}
@@ -3022,15 +3232,12 @@ static int
try_steal_task(ErtsRunQueue *rq)
{
int res, rq_locked, vix, active_rqs, blnc_rqs;
+ Uint32 flags;
- /*
- * We are not allowed to steal jobs to this run queue
- * if it is suspended. Note that it might get suspended
- * at any time when we don't have the lock on the run
- * queue.
- */
- if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
- return 0;
+ /* Protect jobs we steal from getting stolen from us... */
+ flags = ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_PROTECTED);
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED)
+ return 0; /* go suspend instead... */
res = 0;
rq_locked = 1;
@@ -3149,12 +3356,123 @@ do { \
ASSERT(sum__ == (RQ)->full_reds_history_sum); \
} while (0);
+#define ERTS_PRE_ALLOCED_MPATHS 8
+
+erts_atomic_t erts_migration_paths;
+
+static struct {
+ size_t size;
+ ErtsMigrationPaths *freelist;
+ struct {
+ ErtsMigrationPaths *first;
+ ErtsMigrationPaths *last;
+ } retired;
+} mpaths;
+
+static void
+init_migration_paths(void)
+{
+ int qix, i;
+ char *p;
+ ErtsMigrationPaths *mps;
+
+ mpaths.size = sizeof(ErtsMigrationPaths);
+ mpaths.size += sizeof(ErtsMigrationPath)*(erts_no_schedulers-1);
+ mpaths.size = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(mpaths.size);
+
+ p = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_LL_MPATHS,
+ (mpaths.size
+ * ERTS_PRE_ALLOCED_MPATHS));
+ mpaths.freelist = NULL;
+ for (i = 0; i < ERTS_PRE_ALLOCED_MPATHS-1; i++) {
+ mps = (ErtsMigrationPaths *) p;
+ mps->next = mpaths.freelist;
+ mpaths.freelist = mps;
+ p += mpaths.size;
+ }
+
+ mps = (ErtsMigrationPaths *) p;
+ mps->block = NULL;
+ for (qix = 0; qix < erts_no_run_queues; qix++) {
+ int pix;
+ mps->mpath[qix].flags = 0;
+ mps->mpath[qix].misc_evac_runq = NULL;
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ mps->mpath[qix].prio[pix].limit.this = -1;
+ mps->mpath[qix].prio[pix].limit.other = -1;
+ mps->mpath[qix].prio[pix].runq = NULL;
+ mps->mpath[qix].prio[pix].flags = 0;
+ }
+ }
+ erts_atomic_init_wb(&erts_migration_paths, (erts_aint_t) mps);
+}
+
+static ERTS_INLINE ErtsMigrationPaths *
+alloc_mpaths(void)
+{
+ void *block;
+ ErtsMigrationPaths *res;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&balance_info.update_mtx));
+
+ res = mpaths.freelist;
+ if (res) {
+ mpaths.freelist = res->next;
+ res->block = NULL;
+ return res;
+ }
+ res = erts_alloc(ERTS_ALC_T_SL_MPATHS,
+ mpaths.size+ERTS_CACHE_LINE_SIZE);
+ block = (void *) res;
+ if (((UWord) res) & ERTS_CACHE_LINE_MASK)
+ res = (ErtsMigrationPaths *) ((((UWord) res) & ~ERTS_CACHE_LINE_MASK)
+ + ERTS_CACHE_LINE_SIZE);
+ res->block = block;
+ return res;
+}
+
+static ERTS_INLINE void
+retire_mpaths(ErtsMigrationPaths *mps)
+{
+ ErtsThrPrgrVal current;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&balance_info.update_mtx));
+
+ current = erts_thr_progress_current();
+
+ while (mpaths.retired.first) {
+ ErtsMigrationPaths *tmp = mpaths.retired.first;
+ if (!erts_thr_progress_has_reached_this(current, tmp->thr_prgr))
+ break;
+ mpaths.retired.first = tmp->next;
+ if (tmp->block) {
+ erts_free(ERTS_ALC_T_SL_MPATHS, tmp->block);
+ }
+ else {
+ tmp->next = mpaths.freelist;
+ mpaths.freelist = tmp;
+ }
+ }
+
+ if (!mpaths.retired.first)
+ mpaths.retired.last = NULL;
+
+ mps->thr_prgr = erts_thr_progress_later(NULL);
+ mps->next = NULL;
+
+ if (mpaths.retired.last)
+ mpaths.retired.last->next = mps;
+ else
+ mpaths.retired.first = mps;
+ mpaths.retired.last = mps;
+}
+
static void
check_balance(ErtsRunQueue *c_rq)
{
#if ERTS_MAX_PROCESSES >= (1 << 27)
# error check_balance() assumes ERTS_MAX_PROCESS < (1 << 27)
#endif
+ ErtsMigrationPaths *new_mpaths, *old_mpaths;
ErtsRunQueueBalance avg = {0};
Sint64 scheds_reds, full_scheds_reds;
int forced, active, current_active, oowc, half_full_scheds, full_scheds,
@@ -3180,9 +3498,9 @@ check_balance(ErtsRunQueue *c_rq)
ERTS_FOREACH_RUNQ(rq,
{
if (rq->waiting)
- rq->flags |= ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK;
+ (void) ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
else
- rq->flags &= ~ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK;
+ (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
});
@@ -3224,7 +3542,7 @@ check_balance(ErtsRunQueue *c_rq)
ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
erts_smp_runq_lock(rq);
- run_queue_info[qix].flags = rq->flags;
+ run_queue_info[qix].flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
run_queue_info[qix].prio[pix].max_len
= rq->procs.prio_info[pix].max_len;
@@ -3558,47 +3876,27 @@ erts_fprintf(stderr, "--------------------------------\n");
set_no_active_runqs(active);
balance_info.halftime = 1;
- erts_smp_atomic32_set_nob(&balance_info.checking_balance, 0);
+ new_mpaths = alloc_mpaths();
+
+ /* Write migration paths */
- /* Write migration paths and reset balance statistics in all queues */
for (qix = 0; qix < blnc_no_rqs; qix++) {
int mqix;
- Uint32 flags;
- ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
- ErtsRunQueueInfo *rqi;
- flags = run_queue_info[qix].flags;
- erts_smp_runq_lock(rq);
- flags |= (rq->flags & ~ERTS_RUNQ_FLGS_MIGRATION_INFO);
- ASSERT(!(flags & ERTS_RUNQ_FLG_OUT_OF_WORK));
- if (rq->waiting)
- flags |= ERTS_RUNQ_FLG_OUT_OF_WORK;
+ Uint32 flags = run_queue_info[qix].flags;
+ ErtsMigrationPath *mp = &new_mpaths->mpath[qix];
- rq->full_reds_history_sum
- = run_queue_info[qix].full_reds_history_sum;
- rq->full_reds_history[freds_hist_ix]
- = run_queue_info[qix].full_reds_history_change;
-
- ERTS_DBG_CHK_FULL_REDS_HISTORY(rq);
+ mp->flags = flags;
+ mp->misc_evac_runq = NULL;
- rq->out_of_work_count = 0;
- rq->flags = flags;
- rq->max_len = rq->len;
for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
- rqi = (pix == ERTS_PORT_PRIO_LEVEL
- ? &rq->ports.info
- : &rq->procs.prio_info[pix]);
- rqi->max_len = rqi->len;
- rqi->reds = 0;
if (!(ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, pix)
| ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix))) {
ASSERT(run_queue_info[qix].prio[pix].immigrate_from < 0);
ASSERT(run_queue_info[qix].prio[pix].emigrate_to < 0);
-#ifdef DEBUG
- rqi->migrate.limit.this = -1;
- rqi->migrate.limit.other = -1;
- ERTS_DBG_SET_INVALID_RUNQP(rqi->migrate.runq, 0x2);
-#endif
-
+ mp->prio[pix].limit.this = -1;
+ mp->prio[pix].limit.other = -1;
+ mp->prio[pix].runq = NULL;
+ mp->prio[pix].flags = 0;
}
else if (ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, pix)) {
ASSERT(!ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix));
@@ -3606,11 +3904,12 @@ erts_fprintf(stderr, "--------------------------------\n");
ASSERT(run_queue_info[qix].prio[pix].emigrate_to >= 0);
mqix = run_queue_info[qix].prio[pix].emigrate_to;
- rqi->migrate.limit.this
+ mp->prio[pix].limit.this
= run_queue_info[qix].prio[pix].migration_limit;
- rqi->migrate.limit.other
+ mp->prio[pix].limit.other
= run_queue_info[mqix].prio[pix].migration_limit;
- rqi->migrate.runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].flags = run_queue_info[mqix].flags;
}
else {
ASSERT(ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix));
@@ -3618,24 +3917,142 @@ erts_fprintf(stderr, "--------------------------------\n");
ASSERT(run_queue_info[qix].prio[pix].immigrate_from >= 0);
mqix = run_queue_info[qix].prio[pix].immigrate_from;
- rqi->migrate.limit.this
+ mp->prio[pix].limit.this
= run_queue_info[qix].prio[pix].migration_limit;
- rqi->migrate.limit.other
+ mp->prio[pix].limit.other
= run_queue_info[mqix].prio[pix].migration_limit;
- rqi->migrate.runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].flags = run_queue_info[mqix].flags;
}
}
+ }
+
+ old_mpaths = erts_get_migration_paths_managed();
+
+ /* Keep offline run-queues as is */
+ for (qix = blnc_no_rqs; qix < erts_no_schedulers; qix++) {
+ ErtsMigrationPath *nmp = &new_mpaths->mpath[qix];
+ ErtsMigrationPath *omp = &old_mpaths->mpath[qix];
+
+ nmp->flags = omp->flags;
+ nmp->misc_evac_runq = omp->misc_evac_runq;
+
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ nmp->prio[pix].limit.this = omp->prio[pix].limit.this;
+ nmp->prio[pix].limit.other = omp->prio[pix].limit.other;
+ nmp->prio[pix].runq = omp->prio[pix].runq;
+ nmp->prio[pix].flags = omp->prio[pix].flags;
+ }
+ }
+
+
+ /* Publish new migration paths... */
+ erts_atomic_set_wb(&erts_migration_paths, (erts_aint_t) new_mpaths);
+
+ /* Reset balance statistics in all online queues */
+ for (qix = 0; qix < blnc_no_rqs; qix++) {
+ Uint32 flags = run_queue_info[qix].flags;
+ ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
+
+ erts_smp_runq_lock(rq);
+ ASSERT(!(flags & ERTS_RUNQ_FLG_OUT_OF_WORK));
+ if (rq->waiting)
+ flags |= ERTS_RUNQ_FLG_OUT_OF_WORK;
+
+ rq->full_reds_history_sum
+ = run_queue_info[qix].full_reds_history_sum;
+ rq->full_reds_history[freds_hist_ix]
+ = run_queue_info[qix].full_reds_history_change;
+
+ ERTS_DBG_CHK_FULL_REDS_HISTORY(rq);
+
+ rq->out_of_work_count = 0;
+ (void) ERTS_RUNQ_FLGS_READ_BSET(rq, ERTS_RUNQ_FLGS_MIGRATION_INFO, flags);
+
+ rq->max_len = rq->len;
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ ErtsRunQueueInfo *rqi;
+ rqi = (pix == ERTS_PORT_PRIO_LEVEL
+ ? &rq->ports.info
+ : &rq->procs.prio_info[pix]);
+ erts_smp_reset_max_len(rq, rqi);
+ rqi->reds = 0;
+ }
rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
erts_smp_runq_unlock(rq);
}
+ erts_smp_atomic32_set_nob(&balance_info.checking_balance, 0);
+
balance_info.n++;
+ retire_mpaths(old_mpaths);
erts_smp_mtx_unlock(&balance_info.update_mtx);
erts_smp_runq_lock(c_rq);
}
+static void
+change_no_used_runqs(int used)
+{
+ ErtsMigrationPaths *new_mpaths, *old_mpaths;
+ int active, qix;
+ erts_smp_mtx_lock(&balance_info.update_mtx);
+ get_no_runqs(&active, NULL);
+ set_no_used_runqs(used);
+
+ old_mpaths = erts_get_migration_paths_managed();
+ new_mpaths = alloc_mpaths();
+
+ /* Write migration paths... */
+
+ for (qix = 0; qix < used; qix++) {
+ int pix;
+ ErtsMigrationPath *omp = &old_mpaths->mpath[qix];
+ ErtsMigrationPath *nmp = &new_mpaths->mpath[qix];
+
+ nmp->flags = omp->flags & ~ERTS_RUNQ_FLGS_MIGRATION_QMASKS;
+ nmp->misc_evac_runq = NULL;
+
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ nmp->prio[pix].limit.this = -1;
+ nmp->prio[pix].limit.other = -1;
+ nmp->prio[pix].runq = NULL;
+ nmp->prio[pix].flags = 0;
+ }
+ }
+ for (qix = used; qix < erts_no_run_queues; qix++) {
+ int pix;
+ ErtsRunQueue *to_rq = ERTS_RUNQ_IX(qix % used);
+ ErtsMigrationPath *nmp = &new_mpaths->mpath[qix];
+
+ nmp->flags = (ERTS_RUNQ_FLGS_EMIGRATE_QMASK
+ | ERTS_RUNQ_FLGS_EVACUATE_QMASK);
+ nmp->misc_evac_runq = to_rq;
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ nmp->prio[pix].limit.this = -1;
+ nmp->prio[pix].limit.other = -1;
+ nmp->prio[pix].runq = to_rq;
+ nmp->prio[pix].flags = 0;
+ }
+ }
+
+ /* ... and publish them. */
+ erts_atomic_set_wb(&erts_migration_paths, (erts_aint_t) new_mpaths);
+
+ retire_mpaths(old_mpaths);
+
+ /* Make sure that we balance soon... */
+ balance_info.forced_check_balance = 1;
+
+ erts_smp_mtx_unlock(&balance_info.update_mtx);
+
+ erts_smp_runq_lock(ERTS_RUNQ_IX(0));
+ ERTS_RUNQ_IX(0)->check_balance_reds = 0;
+ erts_smp_runq_unlock(ERTS_RUNQ_IX(0));
+}
+
+
#endif /* #ifdef ERTS_SMP */
Uint
@@ -3703,11 +4120,11 @@ static struct {
int limit;
int dec_shift;
int dec_mask;
- void (*check)(ErtsRunQueue *rq);
+ void (*check)(ErtsRunQueue *rq, Uint32 flags);
} wakeup_other;
static void
-wakeup_other_check(ErtsRunQueue *rq)
+wakeup_other_check(ErtsRunQueue *rq, Uint32 flags)
{
int wo_reds = rq->wakeup_other_reds;
if (wo_reds) {
@@ -3725,6 +4142,8 @@ wakeup_other_check(ErtsRunQueue *rq)
if (rq->wakeup_other > wakeup_other.limit) {
int empty_rqs =
erts_smp_atomic32_read_acqb(&no_empty_run_queues);
+ if (flags & ERTS_RUNQ_FLG_PROTECTED)
+ (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
if (empty_rqs != 0)
wake_scheduler_on_empty_runq(rq);
rq->wakeup_other = 0;
@@ -3769,18 +4188,21 @@ wakeup_other_set_limit(void)
}
static void
-wakeup_other_check_legacy(ErtsRunQueue *rq)
+wakeup_other_check_legacy(ErtsRunQueue *rq, Uint32 flags)
{
int wo_reds = rq->wakeup_other_reds;
if (wo_reds) {
- if (rq->len < 2) {
+ erts_aint32_t len = rq->len;
+ if (len < 2) {
rq->wakeup_other -= ERTS_WAKEUP_OTHER_DEC_LEGACY*wo_reds;
if (rq->wakeup_other < 0)
rq->wakeup_other = 0;
}
else if (rq->wakeup_other < wakeup_other.limit)
- rq->wakeup_other += rq->len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC_LEGACY;
+ rq->wakeup_other += len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC_LEGACY;
else {
+ if (flags & ERTS_RUNQ_FLG_PROTECTED)
+ (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
if (erts_smp_atomic32_read_acqb(&no_empty_run_queues) != 0) {
wake_scheduler_on_empty_runq(rq);
rq->wakeup_other = 0;
@@ -3937,6 +4359,8 @@ init_aux_work_data(ErtsAuxWorkData *awdp, ErtsSchedulerData *esdp, char *dawwp)
awdp->dd.thr_prgr = ERTS_THR_PRGR_VAL_WAITING;
awdp->dd.completed_callback = NULL;
awdp->dd.completed_arg = NULL;
+ awdp->later_op.first = NULL;
+ awdp->later_op.last = NULL;
#endif
#ifdef ERTS_USE_ASYNC_READY_Q
#ifdef ERTS_SMP
@@ -4001,7 +4425,6 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
rq->ix = ix;
- erts_smp_atomic32_init_nob(&rq->info_flags, ERTS_RUNQ_IFLG_NONEMPTY);
/* make sure that the "extra" id correponds to the schedulers
* id if the esdp->no <-> ix+1 mapping change.
@@ -4012,7 +4435,7 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
rq->waiting = 0;
rq->woken = 0;
- rq->flags = 0;
+ ERTS_RUNQ_FLGS_INIT(rq, ERTS_RUNQ_FLG_NONEMPTY);
rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
rq->full_reds_history_sum = 0;
for (rix = 0; rix < ERTS_FULL_REDS_HISTORY_SIZE; rix++) {
@@ -4026,19 +4449,14 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
rq->wakeup_other_reds = 0;
rq->halt_in_progress = 0;
- rq->procs.len = 0;
rq->procs.pending_exiters = NULL;
rq->procs.context_switches = 0;
rq->procs.reductions = 0;
for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
- rq->procs.prio_info[pix].len = 0;
+ erts_smp_atomic32_init_nob(&rq->procs.prio_info[pix].len, 0);
rq->procs.prio_info[pix].max_len = 0;
rq->procs.prio_info[pix].reds = 0;
- rq->procs.prio_info[pix].migrate.limit.this = 0;
- rq->procs.prio_info[pix].migrate.limit.other = 0;
- ERTS_DBG_SET_INVALID_RUNQP(rq->procs.prio_info[pix].migrate.runq,
- 0x0);
if (pix < ERTS_NO_PROC_PRIO_LEVELS - 1) {
rq->procs.prio[pix].first = NULL;
rq->procs.prio[pix].last = NULL;
@@ -4047,14 +4465,10 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
rq->misc.start = NULL;
rq->misc.end = NULL;
- rq->misc.evac_runq = NULL;
- rq->ports.info.len = 0;
+ erts_smp_atomic32_init_nob(&rq->ports.info.len, 0);
rq->ports.info.max_len = 0;
rq->ports.info.reds = 0;
- rq->ports.info.migrate.limit.this = 0;
- rq->ports.info.migrate.limit.other = 0;
- rq->ports.info.migrate.runq = NULL;
rq->ports.start = NULL;
rq->ports.end = NULL;
}
@@ -4192,10 +4606,12 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
balance_info.prev_rise.reds = 0;
balance_info.n = 0;
+ init_migration_paths();
+
if (no_schedulers_online < no_schedulers) {
+ change_no_used_runqs(no_schedulers_online);
for (ix = no_schedulers_online; ix < erts_no_run_queues; ix++)
- evacuate_run_queue(ERTS_RUNQ_IX(ix),
- ERTS_RUNQ_IX(ix % no_schedulers_online));
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
}
schdlr_sspnd.wait_curr_online = no_schedulers_online;
@@ -4237,6 +4653,11 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
erts_smp_atomic32_init_relb(&erts_halt_progress, -1);
erts_halt_code = 0;
+
+#if !defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
+ erts_lc_set_thread_name("scheduler 1");
+#endif
+
}
ErtsRunQueue *
@@ -4258,91 +4679,197 @@ erts_get_scheduler_data(void)
#endif
-static int remove_proc_from_runq(ErtsRunQueue *rq, Process *p, int to_inactive);
+/*
+ * scheduler_out_process() return with c_rq locked.
+ */
+static ERTS_INLINE int
+schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p)
+{
+ erts_aint32_t a, e, n;
+ int res = 0;
+
+ a = state;
+
+ while (1) {
+ n = e = a;
+
+ ASSERT(a & ERTS_PSFLG_RUNNING);
+ ASSERT(!(a & ERTS_PSFLG_IN_RUNQ));
+
+ n &= ~ERTS_PSFLG_RUNNING;
+ if ((a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE)
+ n |= ERTS_PSFLG_IN_RUNQ;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ if (a == e)
+ break;
+ }
+
+ if (!(n & ERTS_PSFLG_IN_RUNQ)) {
+ if (erts_system_profile_flags.runnable_procs)
+ profile_runnable_proc(p, am_inactive);
+ }
+ else {
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & n);
+ ErtsRunQueue *runq = erts_get_runq_proc(p);
+
+ ASSERT(!(n & ERTS_PSFLG_SUSPENDED));
+
+#ifdef ERTS_SMP
+ if (!(ERTS_PSFLG_BOUND & n)) {
+ ErtsRunQueue *new_runq = erts_check_emigration_need(runq, prio);
+ if (new_runq) {
+ RUNQ_SET_RQ(&p->run_queue, new_runq);
+ runq = new_runq;
+ }
+ }
+#endif
+ ASSERT(runq);
+ res = 1;
+
+ erts_smp_runq_lock(runq);
+
+ /* Enqueue the process */
+ enqueue_process(runq, prio, p);
+
+ if (runq == c_rq)
+ return res;
+ erts_smp_runq_unlock(runq);
+ smp_notify_inc_runq(runq);
+ }
+ erts_smp_runq_lock(c_rq);
+ return res;
+}
static ERTS_INLINE void
-suspend_process(ErtsRunQueue *rq, Process *p)
+add2runq(Process *p, erts_aint32_t state)
{
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- p->rcount++; /* count number of suspend */
-#ifdef ERTS_SMP
- ASSERT(!(p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)
- || p == erts_get_current_process());
- ASSERT(p->status != P_RUNNING
- || p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING);
- if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ)
- goto runable;
-#endif
- switch(p->status) {
- case P_SUSPENDED:
- break;
- case P_RUNABLE:
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+ ErtsRunQueue *runq = erts_get_runq_proc(p);
+
#ifdef ERTS_SMP
- runable:
- if (!ERTS_PROC_PENDING_EXIT(p))
+ if (!(ERTS_PSFLG_BOUND & state)) {
+ ErtsRunQueue *new_runq = erts_check_emigration_need(runq, prio);
+ if (new_runq) {
+ RUNQ_SET_RQ(&p->run_queue, new_runq);
+ runq = new_runq;
+ }
+ }
#endif
- remove_proc_from_runq(rq, p, 1);
- /* else:
- * leave process in schedq so it will discover the pending exit
- */
- p->rstatus = P_RUNABLE; /* wakeup as runnable */
- break;
- case P_RUNNING:
- p->rstatus = P_RUNABLE; /* wakeup as runnable */
- break;
- case P_WAITING:
- p->rstatus = P_WAITING; /* wakeup as waiting */
- break;
- case P_EXITING:
- return; /* ignore this */
- case P_GARBING:
- case P_FREE:
- erl_exit(1, "bad state in suspend_process()\n");
+ ASSERT(runq);
+
+ erts_smp_runq_lock(runq);
+
+ /* Enqueue the process */
+ enqueue_process(runq, prio, p);
+
+ erts_smp_runq_unlock(runq);
+ smp_notify_inc_runq(runq);
+
+}
+
+static ERTS_INLINE void
+schedule_process(Process *p, erts_aint32_t state, int active_enq)
+{
+ erts_aint32_t a = state, n;
+
+ while (1) {
+ erts_aint32_t e;
+ n = e = a;
+
+ if (a & ERTS_PSFLG_FREE)
+ return; /* We don't want to schedule free processes... */
+ n |= ERTS_PSFLG_ACTIVE;
+ if (!(a & (ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_RUNNING)))
+ n |= ERTS_PSFLG_IN_RUNQ;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ if (a == e)
+ break;
+ if (!active_enq && (a & ERTS_PSFLG_ACTIVE))
+ return; /* Someone else activated process ... */
}
- if ((erts_system_profile_flags.runnable_procs) && (p->rcount == 1) && (p->status != P_WAITING)) {
- profile_runnable_proc(p, am_inactive);
+ if (erts_system_profile_flags.runnable_procs
+ && !(a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED))) {
+ profile_runnable_proc(p, am_active);
}
- p->status = P_SUSPENDED;
-
+ if ((n & ERTS_PSFLG_IN_RUNQ) && !(a & ERTS_PSFLG_IN_RUNQ))
+ add2runq(p, n);
}
-static ERTS_INLINE void
-resume_process(Process *p)
+void
+erts_schedule_process(Process *p, erts_aint32_t state)
+{
+ schedule_process(p, state, 0);
+}
+
+static ERTS_INLINE int
+suspend_process(Process *c_p, Process *p)
{
- Uint32 *statusp;
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ int suspended = 0;
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- switch (p->status) {
- case P_SUSPENDED:
- statusp = &p->status;
- break;
- case P_GARBING:
- if (p->gcstatus == P_SUSPENDED) {
- statusp = &p->gcstatus;
- break;
+
+ if ((state & ERTS_PSFLG_SUSPENDED))
+ suspended = -1;
+ else {
+ if (c_p == p) {
+ state = erts_smp_atomic32_read_bor_relb(&p->state,
+ ERTS_PSFLG_SUSPENDED);
+ state |= ERTS_PSFLG_SUSPENDED;
+ ASSERT(state & ERTS_PSFLG_RUNNING);
+ suspended = 1;
+ }
+ else {
+ while (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_EXITING))) {
+ erts_aint32_t e, n;
+ n = e = state;
+ n |= ERTS_PSFLG_SUSPENDED;
+ state = erts_smp_atomic32_cmpxchg_relb(&p->state, n, e);
+ if (state == e) {
+ state = n;
+ suspended = 1;
+ break;
+ }
+ }
}
- /* Fall through */
- default:
- return;
}
+ if (state & ERTS_PSFLG_SUSPENDED) {
+
+ ASSERT(!(ERTS_PSFLG_RUNNING & state)
+ || p == erts_get_current_process());
+
+ if (erts_system_profile_flags.runnable_procs
+ && (p->rcount == 0)
+ && (state & ERTS_PSFLG_ACTIVE)) {
+ profile_runnable_proc(p, am_inactive);
+ }
+
+ p->rcount++; /* count number of suspend */
+ }
+ return suspended;
+}
+
+static ERTS_INLINE void
+resume_process(Process *p)
+{
+ erts_aint32_t state;
+ ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
+
ASSERT(p->rcount > 0);
if (--p->rcount > 0) /* multiple suspend */
return;
- switch(p->rstatus) {
- case P_RUNABLE:
- erts_add_to_runq(p);
- break;
- case P_WAITING:
- *statusp = P_WAITING;
- break;
- default:
- erl_exit(1, "bad state in resume_process()\n");
+
+ state = erts_smp_atomic32_read_band_mb(&p->state, ~ERTS_PSFLG_SUSPENDED);
+ state &= ~ERTS_PSFLG_SUSPENDED;
+ if ((state & (ERTS_PSFLG_EXITING
+ | ERTS_PSFLG_ACTIVE
+ | ERTS_PSFLG_IN_RUNQ
+ | ERTS_PSFLG_RUNNING)) == ERTS_PSFLG_ACTIVE) {
+ schedule_process(p, state, 1);
}
- p->rstatus = P_FREE;
}
int
@@ -4466,6 +4993,7 @@ suspend_scheduler(ErtsSchedulerData *esdp)
int wake = 0;
erts_aint32_t aux_work;
int thr_prgr_active = 1;
+ ErtsStuckBoundProcesses sbp = {NULL, NULL};
/*
* Schedulers may be suspended in two different ways:
@@ -4480,6 +5008,8 @@ suspend_scheduler(ErtsSchedulerData *esdp)
ASSERT(no != 1);
+ evacuate_run_queue(esdp->run_queue, &sbp);
+
erts_smp_runq_unlock(esdp->run_queue);
erts_sched_check_cpu_bind_prep_suspend(esdp);
@@ -4543,19 +5073,28 @@ suspend_scheduler(ErtsSchedulerData *esdp)
erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
while (1) {
+ erts_aint32_t qmask;
erts_aint32_t flgs;
+ qmask = (ERTS_RUNQ_FLGS_GET(esdp->run_queue)
+ & ERTS_RUNQ_FLGS_QMASK);
aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
- if (aux_work) {
+ if (aux_work|qmask) {
if (!thr_prgr_active) {
erts_thr_progress_active(esdp, thr_prgr_active = 1);
sched_wall_time_change(esdp, 1);
}
- aux_work = handle_aux_work(&esdp->aux_work_data,
- aux_work,
- 1);
+ if (aux_work)
+ aux_work = handle_aux_work(&esdp->aux_work_data,
+ aux_work,
+ 1);
if (aux_work && erts_thr_progress_update(esdp))
erts_thr_progress_leader_update(esdp);
+ if (qmask) {
+ erts_smp_runq_lock(esdp->run_queue);
+ evacuate_run_queue(esdp->run_queue, &sbp);
+ erts_smp_runq_unlock(esdp->run_queue);
+ }
}
if (!aux_work) {
@@ -4625,56 +5164,11 @@ suspend_scheduler(ErtsSchedulerData *esdp)
erts_smp_runq_lock(esdp->run_queue);
non_empty_runq(esdp->run_queue);
+ schedule_bound_processes(esdp->run_queue, &sbp);
+
erts_sched_check_cpu_bind_post_suspend(esdp);
}
-#define ERTS_RUNQ_RESET_SUSPEND_INFO(RQ, DBG_ID) \
-do { \
- int pix__; \
- (RQ)->misc.evac_runq = NULL; \
- (RQ)->ports.info.migrate.runq = NULL; \
- (RQ)->flags &= ~(ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EVACUATE_QMASK \
- | ERTS_RUNQ_FLG_SUSPENDED); \
- (RQ)->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK \
- | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); \
- (RQ)->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; \
- erts_smp_atomic32_read_band_nob(&(RQ)->info_flags, ~ERTS_RUNQ_IFLG_SUSPENDED);\
- for (pix__ = 0; pix__ < ERTS_NO_PROC_PRIO_LEVELS; pix__++) { \
- (RQ)->procs.prio_info[pix__].max_len = 0; \
- (RQ)->procs.prio_info[pix__].reds = 0; \
- ERTS_DBG_SET_INVALID_RUNQP((RQ)->procs.prio_info[pix__].migrate.runq,\
- (DBG_ID)); \
- } \
- (RQ)->ports.info.max_len = 0; \
- (RQ)->ports.info.reds = 0; \
-} while (0)
-
-#define ERTS_RUNQ_RESET_MIGRATION_PATHS__(RQ) \
-do { \
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked((RQ))); \
- (RQ)->misc.evac_runq = NULL; \
- (RQ)->ports.info.migrate.runq = NULL; \
- (RQ)->flags &= ~(ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EVACUATE_QMASK); \
-} while (0)
-
-#ifdef DEBUG
-#define ERTS_RUNQ_RESET_MIGRATION_PATHS(RQ, DBG_ID) \
-do { \
- int pix__; \
- ERTS_RUNQ_RESET_MIGRATION_PATHS__((RQ)); \
- for (pix__ = 0; pix__ < ERTS_NO_PROC_PRIO_LEVELS; pix__++) \
- ERTS_DBG_SET_INVALID_RUNQP((RQ)->procs.prio_info[pix__].migrate.runq,\
- (DBG_ID)); \
-} while (0)
-#else
-#define ERTS_RUNQ_RESET_MIGRATION_PATHS(RQ, DBG_ID) \
- ERTS_RUNQ_RESET_MIGRATION_PATHS__((RQ))
-#endif
-
ErtsSchedSuspendResult
erts_schedulers_state(Uint *total,
Uint *online,
@@ -4744,27 +5238,13 @@ erts_set_schedulers_online(Process *p,
have_unlocked_plocks = 1;
erts_smp_proc_unlock(p, plocks);
}
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
- erts_smp_mtx_lock(&balance_info.update_mtx);
- for (ix = online; ix < no; ix++) {
- ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ERTS_RUNQ_RESET_SUSPEND_INFO(rq, 0x5);
- erts_smp_runq_unlock(rq);
- scheduler_ix_resume_wake(ix);
- }
- /*
- * Spread evacuation paths among all online
- * run queues.
- */
- for (ix = no; ix < erts_no_run_queues; ix++) {
- ErtsRunQueue *from_rq = ERTS_RUNQ_IX(ix);
- ErtsRunQueue *to_rq = ERTS_RUNQ_IX(ix % no);
- evacuate_run_queue(from_rq, to_rq);
- }
- set_no_used_runqs(no);
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
+ change_no_used_runqs(no);
+
+ for (ix = online; ix < no; ix++)
+ resume_run_queue(ERTS_RUNQ_IX(ix));
+
+ for (ix = no; ix < erts_no_run_queues; ix++)
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
}
res = ERTS_SCHDLR_SSPND_DONE;
}
@@ -4791,25 +5271,11 @@ erts_set_schedulers_online(Process *p,
have_unlocked_plocks = 1;
erts_smp_proc_unlock(p, plocks);
}
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
- erts_smp_mtx_lock(&balance_info.update_mtx);
-
- for (ix = 0; ix < online; ix++) {
- ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ERTS_RUNQ_RESET_MIGRATION_PATHS(rq, 0x6);
- erts_smp_runq_unlock(rq);
- }
- /*
- * Evacutation order important! Newly suspended run queues
- * has to be evacuated last.
- */
- for (ix = erts_no_run_queues-1; ix >= no; ix--)
- evacuate_run_queue(ERTS_RUNQ_IX(ix),
- ERTS_RUNQ_IX(ix % no));
- set_no_used_runqs(no);
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
+
+ change_no_used_runqs(no);
+ for (ix = no; ix < erts_no_run_queues; ix++)
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
+
for (ix = no; ix < online; ix++) {
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
wake_scheduler(rq, 0);
@@ -4869,8 +5335,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
else if (on) { /* ------ BLOCK ------ */
if (schdlr_sspnd.msb.procs) {
plp = proclist_create(p);
- plp->next = schdlr_sspnd.msb.procs;
- schdlr_sspnd.msb.procs = plp;
+ erts_proclist_store_last(&schdlr_sspnd.msb.procs, plp);
p->flags |= F_HAVE_BLCKD_MSCHED;
ASSERT(erts_smp_atomic32_read_nob(&schdlr_sspnd.active) == 1);
ASSERT(p->scheduler_data->no == 1);
@@ -4906,25 +5371,14 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
schdlr_sspnd.msb.wait_active = 2;
}
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
- erts_smp_mtx_lock(&balance_info.update_mtx);
- set_no_used_runqs(1);
- for (ix = 0; ix < online; ix++) {
+ change_no_used_runqs(1);
+ for (ix = 1; ix < erts_no_run_queues; ix++)
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
+
+ for (ix = 1; ix < online; ix++) {
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ASSERT(!(rq->flags & ERTS_RUNQ_FLG_SUSPENDED));
- ERTS_RUNQ_RESET_MIGRATION_PATHS(rq, 0x7);
- erts_smp_runq_unlock(rq);
+ wake_scheduler(rq, 0);
}
- /*
- * Evacuate all activities in all other run queues
- * into the first run queue. Note order is important,
- * online run queues has to be evacuated last.
- */
- for (ix = erts_no_run_queues-1; ix >= 1; ix--)
- evacuate_run_queue(ERTS_RUNQ_IX(ix), ERTS_RUNQ_IX(0));
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
if (erts_smp_atomic32_read_nob(&schdlr_sspnd.active)
!= schdlr_sspnd.msb.wait_active) {
@@ -4966,17 +5420,7 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
~ERTS_SCHDLR_SSPND_CHNG_WAITER);
}
plp = proclist_create(p);
- plp->next = schdlr_sspnd.msb.procs;
- schdlr_sspnd.msb.procs = plp;
-#ifdef DEBUG
- ERTS_FOREACH_RUNQ(srq,
- {
- if (srq != ERTS_RUNQ_IX(0)) {
- ASSERT(ERTS_EMPTY_RUNQ(srq));
- ASSERT(srq->flags & ERTS_RUNQ_FLG_SUSPENDED);
- }
- });
-#endif
+ erts_proclist_store_last(&schdlr_sspnd.msb.procs, plp);
ASSERT(p->scheduler_data);
}
}
@@ -4987,20 +5431,16 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
}
else { /* ------ UNBLOCK ------ */
if (p->flags & F_HAVE_BLCKD_MSCHED) {
- ErtsProcList **plpp = &schdlr_sspnd.msb.procs;
- plp = schdlr_sspnd.msb.procs;
+ ErtsProcList *plp = erts_proclist_peek_first(schdlr_sspnd.msb.procs);
while (plp) {
- if (!proclist_same(plp, p)){
- plpp = &plp->next;
- plp = plp->next;
- }
- else {
- *plpp = plp->next;
- proclist_destroy(plp);
+ ErtsProcList *tmp_plp = plp;
+ plp = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp);
+ if (erts_proclist_same(tmp_plp, p)) {
+ erts_proclist_remove(&schdlr_sspnd.msb.procs, tmp_plp);
+ proclist_destroy(tmp_plp);
if (!all)
break;
- plp = *plpp;
}
}
}
@@ -5008,27 +5448,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
res = ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED;
else {
ERTS_SCHDLR_SSPND_CHNG_SET(ERTS_SCHDLR_SSPND_CHNG_MSB, 0);
-#ifdef DEBUG
- ERTS_FOREACH_RUNQ(rq,
- {
- if (rq != p->scheduler_data->run_queue) {
- if (!ERTS_EMPTY_RUNQ(rq)) {
- Process *rp;
- int pix;
- ASSERT(rq->ports.info.len == 0);
- for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
- for (rp = rq->procs.prio[pix].first;
- rp;
- rp = rp->next) {
- ASSERT(rp->bound_runq);
- }
- }
- }
-
- ASSERT(rq->flags & ERTS_RUNQ_FLG_SUSPENDED);
- }
- });
-#endif
p->flags &= ~F_HAVE_BLCKD_MSCHED;
schdlr_sspnd.msb.ongoing = 0;
if (schdlr_sspnd.online == 1) {
@@ -5038,35 +5457,19 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
}
else {
int online = schdlr_sspnd.online;
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
if (plocks) {
have_unlocked_plocks = 1;
erts_smp_proc_unlock(p, plocks);
}
- erts_smp_mtx_lock(&balance_info.update_mtx);
+
+ change_no_used_runqs(online);
/* Resume all online run queues */
- for (ix = 1; ix < online; ix++) {
- ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ERTS_RUNQ_RESET_SUSPEND_INFO(rq, 0x4);
- erts_smp_runq_unlock(rq);
- scheduler_ix_resume_wake(ix);
- }
+ for (ix = 1; ix < online; ix++)
+ resume_run_queue(ERTS_RUNQ_IX(ix));
- /* Spread evacuation paths among all online run queues */
for (ix = online; ix < erts_no_run_queues; ix++)
- evacuate_run_queue(ERTS_RUNQ_IX(ix),
- ERTS_RUNQ_IX(ix % online));
-
- set_no_used_runqs(online);
- /* Make sure that we balance soon... */
- balance_info.forced_check_balance = 1;
- erts_smp_runq_lock(ERTS_RUNQ_IX(0));
- ERTS_RUNQ_IX(0)->check_balance_reds = 0;
- erts_smp_runq_unlock(ERTS_RUNQ_IX(0));
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
}
res = ERTS_SCHDLR_SSPND_DONE;
}
@@ -5106,23 +5509,25 @@ erts_multi_scheduling_blockers(Process *p)
Eterm res = NIL;
erts_smp_mtx_lock(&schdlr_sspnd.mtx);
- if (schdlr_sspnd.msb.procs) {
+ if (!erts_proclist_is_empty(schdlr_sspnd.msb.procs)) {
Eterm *hp, *hp_end;
ErtsProcList *plp1, *plp2;
- Uint max_size;
- ASSERT(schdlr_sspnd.msb.procs);
- for (max_size = 0, plp1 = schdlr_sspnd.msb.procs;
+ Uint max_size = 0;
+
+ for (plp1 = erts_proclist_peek_first(schdlr_sspnd.msb.procs);
plp1;
- plp1 = plp1->next) {
+ plp1 = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp1)) {
max_size += 2;
}
ASSERT(max_size);
hp = HAlloc(p, max_size);
hp_end = hp + max_size;
- for (plp1 = schdlr_sspnd.msb.procs; plp1; plp1 = plp1->next) {
- for (plp2 = schdlr_sspnd.msb.procs;
+ for (plp1 = erts_proclist_peek_first(schdlr_sspnd.msb.procs);
+ plp1;
+ plp1 = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp1)) {
+ for (plp2 = erts_proclist_peek_first(schdlr_sspnd.msb.procs);
plp2->pid != plp1->pid;
- plp2 = plp2->next);
+ plp2 = erts_proclist_peek_next(schdlr_sspnd.msb.procs, plp2));
if (plp2 == plp1) {
res = CONS(hp, plp1->pid, res);
hp += 2;
@@ -5373,11 +5778,8 @@ handle_pend_sync_suspend(Process *suspendee,
if (suspender) {
ASSERT(is_nil(suspender->suspendee));
if (suspendee_alive) {
- ErtsRunQueue *rq = erts_get_runq_proc(suspendee);
- erts_smp_runq_lock(rq);
- suspend_process(rq, suspendee);
- erts_smp_runq_unlock(rq);
- suspender->suspendee = suspendee->id;
+ erts_suspend(suspendee, suspendee_locks, NULL);
+ suspender->suspendee = suspendee->common.id;
}
/* suspender is suspended waiting for suspendee to suspend;
resume suspender */
@@ -5398,7 +5800,7 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
ERTS_SMP_LC_ASSERT(c_p_locks & ERTS_PROC_LOCK_MAIN);
ERTS_SMP_LC_ASSERT(pid_locks & (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS));
- if (c_p->id == pid)
+ if (c_p->common.id == pid)
return erts_pid2proc(c_p, c_p_locks, pid, pid_locks);
if (c_p_locks & ERTS_PROC_LOCK_STATUS)
@@ -5419,10 +5821,9 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
resume_process(rp);
}
else {
- ErtsRunQueue *cp_rq, *rp_rq;
rp = erts_pid2proc(c_p, c_p_locks|ERTS_PROC_LOCK_STATUS,
- pid, ERTS_PROC_LOCK_STATUS);
+ pid, pid_locks|ERTS_PROC_LOCK_STATUS);
if (!rp) {
c_p->flags &= ~F_P2PNR_RESCHED;
@@ -5431,58 +5832,36 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
ASSERT(!(c_p->flags & F_P2PNR_RESCHED));
- cp_rq = erts_get_runq_proc(c_p);
- rp_rq = erts_get_runq_proc(rp);
- erts_smp_runqs_lock(cp_rq, rp_rq);
- if (rp->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
- running:
- /* Phiu... */
-
- /*
- * If we got pending suspenders and suspend ourselves waiting
- * to suspend another process we might deadlock.
- * In this case we have to yield, be suspended by
- * someone else and then do it all over again.
- */
- if (!c_p->pending_suspenders) {
- /* Mark rp pending for suspend by c_p */
- add_pend_suspend(rp, c_p->id, handle_pend_sync_suspend);
- ASSERT(is_nil(c_p->suspendee));
-
- /* Suspend c_p; when rp is suspended c_p will be resumed. */
- suspend_process(cp_rq, c_p);
- c_p->flags |= F_P2PNR_RESCHED;
- }
- /* Yield (caller is assumed to yield immediately in bif). */
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
- rp = ERTS_PROC_LOCK_BUSY;
+ if (suspend) {
+ if (suspend_process(c_p, rp))
+ goto done;
}
else {
- ErtsProcLocks need_locks = pid_locks & ~ERTS_PROC_LOCK_STATUS;
- if (need_locks && erts_smp_proc_trylock(rp, need_locks) == EBUSY) {
- erts_smp_runqs_unlock(cp_rq, rp_rq);
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
- rp = erts_pid2proc(c_p, c_p_locks|ERTS_PROC_LOCK_STATUS,
- pid, pid_locks|ERTS_PROC_LOCK_STATUS);
- if (!rp)
- goto done;
- /* run-queues may have changed */
- cp_rq = erts_get_runq_proc(c_p);
- rp_rq = erts_get_runq_proc(rp);
- erts_smp_runqs_lock(cp_rq, rp_rq);
- if (rp->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
- /* Ahh... */
- erts_smp_proc_unlock(rp,
- pid_locks & ~ERTS_PROC_LOCK_STATUS);
- goto running;
- }
- }
+ if (!(ERTS_PSFLG_RUNNING & erts_smp_atomic32_read_acqb(&rp->state)))
+ goto done;
- /* rp is not running and we got the locks we want... */
- if (suspend)
- suspend_process(rp_rq, rp);
}
- erts_smp_runqs_unlock(cp_rq, rp_rq);
+
+ /* Other process running */
+
+ /*
+ * If we got pending suspenders and suspend ourselves waiting
+ * to suspend another process we might deadlock.
+ * In this case we have to yield, be suspended by
+ * someone else and then do it all over again.
+ */
+ if (!c_p->pending_suspenders) {
+ /* Mark rp pending for suspend by c_p */
+ add_pend_suspend(rp, c_p->common.id, handle_pend_sync_suspend);
+ ASSERT(is_nil(c_p->suspendee));
+
+ /* Suspend c_p; when rp is suspended c_p will be resumed. */
+ suspend_process(c_p, c_p);
+ c_p->flags |= F_P2PNR_RESCHED;
+ }
+ /* Yield (caller is assumed to yield immediately in bif). */
+ erts_smp_proc_unlock(rp, pid_locks|ERTS_PROC_LOCK_STATUS);
+ rp = ERTS_PROC_LOCK_BUSY;
}
done:
@@ -5539,36 +5918,26 @@ erts_pid2proc_nropt(Process *c_p, ErtsProcLocks c_p_locks,
return erts_pid2proc_not_running(c_p, c_p_locks, pid, pid_locks);
}
-static ERTS_INLINE void
-do_bif_suspend_process(ErtsSuspendMonitor *smon,
- Process *suspendee,
- ErtsRunQueue *locked_runq)
+static ERTS_INLINE int
+do_bif_suspend_process(Process *c_p,
+ ErtsSuspendMonitor *smon,
+ Process *suspendee)
{
ASSERT(suspendee);
- ASSERT(!suspendee->is_exiting);
+ ASSERT(!ERTS_PROC_IS_EXITING(suspendee));
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS
& erts_proc_lc_my_proc_locks(suspendee));
if (smon) {
if (!smon->active) {
- ErtsRunQueue *rq;
-
- if (locked_runq)
- rq = locked_runq;
- else {
- rq = erts_get_runq_proc(suspendee);
- erts_smp_runq_lock(rq);
- }
-
- suspend_process(rq, suspendee);
-
- if (!locked_runq)
- erts_smp_runq_unlock(rq);
+ if (!suspend_process(c_p, suspendee))
+ return 0;
}
smon->active += smon->pending;
ASSERT(smon->active);
smon->pending = 0;
+ return 1;
}
-
+ return 0;
}
static void
@@ -5589,13 +5958,20 @@ handle_pend_bif_sync_suspend(Process *suspendee,
ASSERT(is_nil(suspender->suspendee));
if (!suspendee_alive)
erts_delete_suspend_monitor(&suspender->suspend_monitors,
- suspendee->id);
+ suspendee->common.id);
else {
+#ifdef DEBUG
+ int res;
+#endif
ErtsSuspendMonitor *smon;
smon = erts_lookup_suspend_monitor(suspender->suspend_monitors,
- suspendee->id);
- do_bif_suspend_process(smon, suspendee, NULL);
- suspender->suspendee = suspendee->id;
+ suspendee->common.id);
+#ifdef DEBUG
+ res =
+#endif
+ do_bif_suspend_process(suspendee, smon, suspendee);
+ ASSERT(!smon || res != 0);
+ suspender->suspendee = suspendee->common.id;
}
/* suspender is suspended waiting for suspendee to suspend;
resume suspender */
@@ -5624,12 +6000,19 @@ handle_pend_bif_async_suspend(Process *suspendee,
ASSERT(is_nil(suspender->suspendee));
if (!suspendee_alive)
erts_delete_suspend_monitor(&suspender->suspend_monitors,
- suspendee->id);
+ suspendee->common.id);
else {
+#ifdef DEBUG
+ int res;
+#endif
ErtsSuspendMonitor *smon;
smon = erts_lookup_suspend_monitor(suspender->suspend_monitors,
- suspendee->id);
- do_bif_suspend_process(smon, suspendee, NULL);
+ suspendee->common.id);
+#ifdef DEBUG
+ res =
+#endif
+ do_bif_suspend_process(suspendee, smon, suspendee);
+ ASSERT(!smon || res != 0);
}
erts_smp_proc_unlock(suspender, ERTS_PROC_LOCK_LINK);
}
@@ -5669,7 +6052,7 @@ suspend_process_2(BIF_ALIST_2)
int unless_suspending = 0;
- if (BIF_P->id == BIF_ARG_1)
+ if (BIF_P->common.id == BIF_ARG_1)
goto badarg; /* We are not allowed to suspend ourselves */
if (is_not_nil(BIF_ARG_2)) {
@@ -5714,7 +6097,8 @@ suspend_process_2(BIF_ALIST_2)
/* This is really a piece of cake without SMP support... */
if (!smon->active) {
- suspend_process(ERTS_RUNQ_IX(0), suspendee);
+ erts_smp_atomic32_read_bor_nob(&suspendee->state, ERTS_PSFLG_SUSPENDED);
+ suspend_process(BIF_P, suspendee);
smon->active++;
res = am_true;
}
@@ -5757,21 +6141,15 @@ suspend_process_2(BIF_ALIST_2)
if (smon->pending && unless_suspending)
res = am_false;
else {
- ErtsRunQueue *rq;
if (smon->pending == INT_MAX)
goto system_limit;
smon->pending++;
- rq = erts_get_runq_proc(suspendee);
- erts_smp_runq_lock(rq);
- if (suspendee->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)
+ if (!do_bif_suspend_process(BIF_P, smon, suspendee))
add_pend_suspend(suspendee,
- BIF_P->id,
+ BIF_P->common.id,
handle_pend_bif_async_suspend);
- else
- do_bif_suspend_process(smon, suspendee, rq);
- erts_smp_runq_unlock(rq);
res = am_true;
}
@@ -5808,7 +6186,6 @@ suspend_process_2(BIF_ALIST_2)
/* done */
}
else {
- ErtsRunQueue *cp_rq, *s_rq;
/* We haven't got any active suspends on the suspendee */
/*
@@ -5825,12 +6202,7 @@ suspend_process_2(BIF_ALIST_2)
if (!unless_suspending || smon->pending == 0)
smon->pending++;
- cp_rq = erts_get_runq_proc(BIF_P);
- s_rq = erts_get_runq_proc(suspendee);
- erts_smp_runqs_lock(cp_rq, s_rq);
- if (!(suspendee->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)) {
- do_bif_suspend_process(smon, suspendee, s_rq);
- erts_smp_runqs_unlock(cp_rq, s_rq);
+ if (do_bif_suspend_process(BIF_P, smon, suspendee)) {
res = (!unless_suspending || smon->active == 1
? am_true
: am_false);
@@ -5839,7 +6211,7 @@ suspend_process_2(BIF_ALIST_2)
else {
/* Mark suspendee pending for suspend by BIF_P */
add_pend_suspend(suspendee,
- BIF_P->id,
+ BIF_P->common.id,
handle_pend_bif_sync_suspend);
ASSERT(is_nil(BIF_P->suspendee));
@@ -5850,8 +6222,7 @@ suspend_process_2(BIF_ALIST_2)
* This time with BIF_P->suspendee == BIF_ARG_1 (see
* above).
*/
- suspend_process(cp_rq, BIF_P);
- erts_smp_runqs_unlock(cp_rq, s_rq);
+ suspend_process(BIF_P, BIF_P);
goto yield;
}
}
@@ -5859,9 +6230,15 @@ suspend_process_2(BIF_ALIST_2)
}
#endif /* ERTS_SMP */
-
- ASSERT(suspendee->status == P_SUSPENDED || (asynchronous && smon->pending));
- ASSERT(suspendee->status == P_SUSPENDED || !smon->active);
+#ifdef DEBUG
+ {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&suspendee->state);
+ ASSERT((state & ERTS_PSFLG_SUSPENDED)
+ || (asynchronous && smon->pending));
+ ASSERT((state & ERTS_PSFLG_SUSPENDED)
+ || !smon->active);
+ }
+#endif
erts_smp_proc_unlock(suspendee, ERTS_PROC_LOCK_STATUS);
erts_smp_proc_unlock(BIF_P, xlocks);
@@ -5908,7 +6285,7 @@ resume_process_1(BIF_ALIST_1)
Process *suspendee;
int is_active;
- if (BIF_P->id == BIF_ARG_1)
+ if (BIF_P->common.id == BIF_ARG_1)
BIF_ERROR(BIF_P, BADARG);
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
@@ -5956,9 +6333,8 @@ resume_process_1(BIF_ALIST_1)
if (!suspendee)
goto no_suspendee;
- ASSERT(suspendee->status == P_SUSPENDED
- || (suspendee->status == P_GARBING
- && suspendee->gcstatus == P_SUSPENDED));
+ ASSERT(ERTS_PSFLG_SUSPENDED
+ & erts_smp_atomic32_read_nob(&suspendee->state));
resume_process(suspendee);
erts_smp_proc_unlock(suspendee, ERTS_PROC_LOCK_STATUS);
@@ -5987,449 +6363,46 @@ erts_run_queues_len(Uint *qlen)
Uint len = 0;
ERTS_ATOMIC_FOREACH_RUNQ(rq,
{
- if (qlen)
- qlen[i++] = rq->procs.len;
- len += rq->procs.len;
+ Sint pqlen = 0;
+ int pix;
+ for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++)
+ pqlen += RUNQ_READ_LEN(&rq->procs.prio_info[pix].len);
+
+ if (pqlen < 0)
+ pqlen = 0;
+ if (qlen)
+ qlen[i++] = pqlen;
+ len += pqlen;
}
);
return len;
}
-#ifdef HARDDEBUG_RUNQS
-static void
-check_procs_runq(ErtsRunQueue *runq, Process *p_in_q, Process *p_not_in_q)
-{
- int len[ERTS_NO_PROC_PRIO_LEVELS] = {0};
- int tot_len;
- int prioq, prio;
- int found_p_in_q;
- Process *p, *prevp;
-
- found_p_in_q = 0;
- for (prioq = 0; prioq < ERTS_NO_PROC_PRIO_LEVELS - 1; prioq++) {
- prevp = NULL;
- for (p = runq->procs.prio[prioq].first; p; p = p->next) {
- ASSERT(p != p_not_in_q);
- if (p == p_in_q)
- found_p_in_q = 1;
- switch (p->prio) {
- case PRIORITY_MAX:
- case PRIORITY_HIGH:
- case PRIORITY_NORMAL:
- ASSERT(prioq == p->prio);
- break;
- case PRIORITY_LOW:
- ASSERT(prioq == PRIORITY_NORMAL);
- break;
- default:
- ASSERT(!"Bad prio on process");
- }
- len[p->prio]++;
- ASSERT(prevp == p->prev);
- if (p->prev) {
- ASSERT(p->prev->next == p);
- }
- else {
- ASSERT(runq->procs.prio[prioq].first == p);
- }
- if (p->next) {
- ASSERT(p->next->prev == p);
- }
- else {
- ASSERT(runq->procs.prio[prioq].last == p);
- }
- ASSERT(p->run_queue == runq);
- prevp = p;
- }
- }
-
- ASSERT(!p_in_q || found_p_in_q);
-
- tot_len = 0;
- for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) {
- ASSERT(len[prio] == runq->procs.prio_info[prio].len);
- if (len[prio]) {
- ASSERT(runq->flags & (1 << prio));
- }
- else {
- ASSERT(!(runq->flags & (1 << prio)));
- }
- tot_len += len[prio];
- }
- ASSERT(runq->procs.len == tot_len);
-}
-# define ERTS_DBG_CHK_PROCS_RUNQ(RQ) check_procs_runq((RQ), NULL, NULL)
-# define ERTS_DBG_CHK_PROCS_RUNQ_PROC(RQ, P) check_procs_runq((RQ), (P), NULL)
-# define ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(RQ, P) check_procs_runq((RQ), NULL, (P))
-#else
-# define ERTS_DBG_CHK_PROCS_RUNQ(RQ)
-# define ERTS_DBG_CHK_PROCS_RUNQ_PROC(RQ, P)
-# define ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(RQ, P)
-#endif
-
-
-static ERTS_INLINE void
-enqueue_process(ErtsRunQueue *runq, Process *p)
-{
- ErtsRunPrioQueue *rpq;
- ErtsRunQueueInfo *rqi;
-
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
-
- ASSERT(p->bound_runq || !(runq->flags & ERTS_RUNQ_FLG_SUSPENDED));
-
- rqi = &runq->procs.prio_info[p->prio];
- rqi->len++;
- if (rqi->max_len < rqi->len)
- rqi->max_len = rqi->len;
-
- runq->procs.len++;
- runq->len++;
- if (runq->max_len < runq->len)
- runq->max_len = runq->len;
-
- runq->flags |= (1 << p->prio);
-
- rpq = (p->prio == PRIORITY_LOW
- ? &runq->procs.prio[PRIORITY_NORMAL]
- : &runq->procs.prio[p->prio]);
-
- p->next = NULL;
- p->prev = rpq->last;
- if (rpq->last)
- rpq->last->next = p;
- else
- rpq->first = p;
- rpq->last = p;
-
- switch (p->status) {
- case P_EXITING:
- break;
- case P_GARBING:
- p->gcstatus = P_RUNABLE;
- break;
- default:
- p->status = P_RUNABLE;
- break;
- }
-
-#ifdef ERTS_SMP
- p->status_flags |= ERTS_PROC_SFLG_INRUNQ;
-#endif
-
- ERTS_DBG_CHK_PROCS_RUNQ_PROC(runq, p);
-}
-
-
-static ERTS_INLINE int
-dequeue_process(ErtsRunQueue *runq, Process *p)
-{
- ErtsRunPrioQueue *rpq;
- int res = 1;
-
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
-
- ERTS_DBG_CHK_PROCS_RUNQ(runq);
-
- rpq = &runq->procs.prio[p->prio == PRIORITY_LOW ? PRIORITY_NORMAL : p->prio];
- if (p->prev) {
- p->prev->next = p->next;
- }
- else if (rpq->first == p) {
- rpq->first = p->next;
- }
- else {
- res = 0;
- }
- if (p->next) {
- p->next->prev = p->prev;
- }
- else if (rpq->last == p) {
- rpq->last = p->prev;
- }
- else {
- ASSERT(res == 0);
- }
-
- if (res) {
-
- if (--runq->procs.prio_info[p->prio].len == 0)
- runq->flags &= ~(1 << p->prio);
- runq->procs.len--;
- runq->len--;
-
-#ifdef ERTS_SMP
- p->status_flags &= ~ERTS_PROC_SFLG_INRUNQ;
-#endif
- }
-
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
- return res;
-}
-
-/* schedule a process */
-static ERTS_INLINE ErtsRunQueue *
-internal_add_to_runq(ErtsRunQueue *runq, Process *p)
-{
- Uint32 prev_status = p->status;
- ErtsRunQueue *add_runq;
-#ifdef ERTS_SMP
-
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
-
- if (p->status_flags & ERTS_PROC_SFLG_INRUNQ)
- return NULL;
- else if (p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
- ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0);
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
- p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- return NULL;
- }
- ASSERT(!p->scheduler_data);
-#endif
-
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
-#ifndef ERTS_SMP
- /* Never schedule a suspended process (ok in smp case) */
- ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0);
- add_runq = runq;
-#else
- ASSERT(!p->bound_runq || p->bound_runq == p->run_queue);
- if (p->bound_runq) {
- if (p->bound_runq == runq)
- add_runq = runq;
- else {
- add_runq = p->bound_runq;
- erts_smp_xrunq_lock(runq, add_runq);
- }
- }
- else {
- add_runq = erts_check_emigration_need(runq, p->prio);
- if (!add_runq)
- add_runq = runq;
- else /* Process emigrated */
- p->run_queue = add_runq;
- }
-#endif
-
- /* Enqueue the process */
- enqueue_process(add_runq, p);
-
- if ((erts_system_profile_flags.runnable_procs)
- && (prev_status == P_WAITING
- || prev_status == P_SUSPENDED)) {
- profile_runnable_proc(p, am_active);
- }
-
- if (add_runq != runq)
- erts_smp_runq_unlock(add_runq);
-
- return add_runq;
-}
-
-
-void
-erts_add_to_runq(Process *p)
-{
- ErtsRunQueue *notify_runq;
- ErtsRunQueue *runq = erts_get_runq_proc(p);
- erts_smp_runq_lock(runq);
- notify_runq = internal_add_to_runq(runq, p);
- erts_smp_runq_unlock(runq);
- smp_notify_inc_runq(notify_runq);
-
-}
-
-/* Possibly remove a scheduled process we need to suspend */
-
-static int
-remove_proc_from_runq(ErtsRunQueue *rq, Process *p, int to_inactive)
-{
- int res;
-
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
-
-#ifdef ERTS_SMP
- if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) {
- p->status_flags &= ~ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- ASSERT(!remove_proc_from_runq(rq, p, 0));
- return 1;
- }
-#endif
-
- res = dequeue_process(rq, p);
-
- if (res && erts_system_profile_flags.runnable_procs && to_inactive)
- profile_runnable_proc(p, am_inactive);
-
-#ifdef ERTS_SMP
- ASSERT(!(p->status_flags & ERTS_PROC_SFLG_INRUNQ));
-#endif
-
- return res;
-}
-
-#ifdef ERTS_SMP
-
-ErtsMigrateResult
-erts_proc_migrate(Process *p, ErtsProcLocks *plcks,
- ErtsRunQueue *from_rq, int *from_locked,
- ErtsRunQueue *to_rq, int *to_locked)
-{
- ERTS_SMP_LC_ASSERT(*plcks == erts_proc_lc_my_proc_locks(p));
- ERTS_SMP_LC_ASSERT((ERTS_PROC_LOCK_STATUS & *plcks)
- || from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- /*
- * If we have the lock on the run queue to migrate to,
- * check that it isn't suspended. If it is suspended,
- * we will refuse to migrate to it anyway.
- */
- if (*to_locked && (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED))
- return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED;
-
- /* We need status lock on process and locks on both run queues */
-
- if (!(ERTS_PROC_LOCK_STATUS & *plcks)) {
- if (erts_smp_proc_trylock(p, ERTS_PROC_LOCK_STATUS) == EBUSY) {
- ErtsProcLocks lcks = *plcks;
- Eterm pid = p->id;
- Process *proc = *plcks ? p : NULL;
-
- if (*from_locked) {
- *from_locked = 0;
- erts_smp_runq_unlock(from_rq);
- }
- if (*to_locked) {
- *to_locked = 0;
- erts_smp_runq_unlock(to_rq);
- }
-
- proc = erts_pid2proc_opt(proc,
- lcks,
- pid,
- lcks|ERTS_PROC_LOCK_STATUS,
- ERTS_P2P_FLG_ALLOW_OTHER_X);
- if (!proc) {
- *plcks = 0;
- return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ;
- }
- ASSERT(proc == p);
- }
- *plcks |= ERTS_PROC_LOCK_STATUS;
- }
-
- ASSERT(!p->bound_runq);
-
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- if (p->run_queue != from_rq)
- return ERTS_MIGRATE_FAILED_RUNQ_CHANGED;
-
- if (!*from_locked || !*to_locked) {
- if (from_rq < to_rq) {
- if (!*to_locked) {
- if (!*from_locked)
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- else if (erts_smp_runq_trylock(from_rq) == EBUSY) {
- erts_smp_runq_unlock(to_rq);
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- }
- else {
- if (!*from_locked) {
- if (!*to_locked)
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- else if (erts_smp_runq_trylock(to_rq) == EBUSY) {
- erts_smp_runq_unlock(from_rq);
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- }
- *to_locked = *from_locked = 1;
- }
-
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- /* Ok we now got all locks we need; do it... */
-
- /* Refuse to migrate to a suspended run queue */
- if (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
- return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED;
-
- if ((p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)
- || !(p->status_flags & ERTS_PROC_SFLG_INRUNQ))
- return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ;
-
- dequeue_process(from_rq, p);
- p->run_queue = to_rq;
- enqueue_process(to_rq, p);
-
- return ERTS_MIGRATE_SUCCESS;
-}
-#endif /* ERTS_SMP */
-
Eterm
erts_process_status(Process *c_p, ErtsProcLocks c_p_locks,
Process *rp, Eterm rpid)
{
Eterm res = am_undefined;
- Process *p;
-
- if (rp) {
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS
- & erts_proc_lc_my_proc_locks(rp));
- p = rp;
- }
- else {
- p = erts_pid2proc_opt(c_p, c_p_locks,
- rpid, ERTS_PROC_LOCK_STATUS,
- ERTS_P2P_FLG_ALLOW_OTHER_X);
- }
+ Process *p = rp ? rp : erts_proc_lookup_raw(rpid);
if (p) {
- switch (p->status) {
- case P_RUNABLE:
- res = am_runnable;
- break;
- case P_WAITING:
- res = am_waiting;
- break;
- case P_RUNNING:
- res = am_running;
- break;
- case P_EXITING:
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (state & ERTS_PSFLG_FREE)
+ res = am_free;
+ else if (state & ERTS_PSFLG_EXITING)
res = am_exiting;
- break;
- case P_GARBING:
+ else if (state & ERTS_PSFLG_GC)
res = am_garbage_collecting;
- break;
- case P_SUSPENDED:
+ else if (state & ERTS_PSFLG_SUSPENDED)
res = am_suspended;
- break;
- case P_FREE: /* We cannot look up a process in P_FREE... */
- default: /* Not a valid status... */
- erl_exit(1, "Bad status (%b32u) found for process %T\n",
- p->status, p->id);
- break;
- }
-
-#ifdef ERTS_SMP
- if (!rp && (p != c_p || !(ERTS_PROC_LOCK_STATUS & c_p_locks)))
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ else if (state & ERTS_PSFLG_RUNNING)
+ res = am_running;
+ else if (state & ERTS_PSFLG_ACTIVE)
+ res = am_runnable;
+ else
+ res = am_waiting;
}
+#ifdef ERTS_SMP
else {
int i;
ErtsSchedulerData *esdp;
@@ -6437,50 +6410,53 @@ erts_process_status(Process *c_p, ErtsProcLocks c_p_locks,
for (i = 0; i < erts_no_schedulers; i++) {
esdp = ERTS_SCHEDULER_IX(i);
erts_smp_runq_lock(esdp->run_queue);
- if (esdp->free_process && esdp->free_process->id == rpid) {
+ if (esdp->free_process
+ && esdp->free_process->common.id == rpid) {
res = am_free;
erts_smp_runq_unlock(esdp->run_queue);
break;
}
erts_smp_runq_unlock(esdp->run_queue);
}
-
-#endif
-
}
-
+#endif
return res;
}
/*
-** Suspend a process
+** Suspend a currently executing process
** If we are to suspend on a port the busy_port is the thing
** otherwise busy_port is NIL
*/
void
-erts_suspend(Process* process, ErtsProcLocks process_locks, Port *busy_port)
+erts_suspend(Process* c_p, ErtsProcLocks c_p_locks, Port *busy_port)
{
- ErtsRunQueue *rq;
-
- ERTS_SMP_LC_ASSERT(process_locks == erts_proc_lc_my_proc_locks(process));
- if (!(process_locks & ERTS_PROC_LOCK_STATUS))
- erts_smp_proc_lock(process, ERTS_PROC_LOCK_STATUS);
-
- rq = erts_get_runq_proc(process);
+ int suspend;
- erts_smp_runq_lock(rq);
-
- suspend_process(rq, process);
-
- erts_smp_runq_unlock(rq);
+ ASSERT(c_p == erts_get_current_process());
+ ERTS_SMP_LC_ASSERT(c_p_locks == erts_proc_lc_my_proc_locks(c_p));
+ if (!(c_p_locks & ERTS_PROC_LOCK_STATUS))
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS);
if (busy_port)
- erts_wake_process_later(busy_port, process);
+ suspend = erts_save_suspend_process_on_port(busy_port, c_p);
+ else
+ suspend = 1;
- if (!(process_locks & ERTS_PROC_LOCK_STATUS))
- erts_smp_proc_unlock(process, ERTS_PROC_LOCK_STATUS);
+ if (suspend) {
+#ifdef DEBUG
+ int res =
+#endif
+ suspend_process(c_p, c_p);
+ ASSERT(res);
+ }
+ if (!(c_p_locks & ERTS_PROC_LOCK_STATUS))
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS);
+
+ if (suspend && busy_port && erts_system_monitor_flags.busy_port)
+ monitor_generic(c_p, am_busy_port, busy_port->common.id);
}
void
@@ -6495,16 +6471,19 @@ erts_resume(Process* process, ErtsProcLocks process_locks)
}
int
-erts_resume_processes(ErtsProcList *plp)
+erts_resume_processes(ErtsProcList *list)
{
+ /* 'list' is expected to have been fetched (i.e. not a ring anymore) */
int nresumed = 0;
+ ErtsProcList *plp = list;
+
while (plp) {
Process *proc;
ErtsProcList *fplp;
ASSERT(is_internal_pid(plp->pid));
proc = erts_pid2proc(NULL, 0, plp->pid, ERTS_PROC_LOCK_STATUS);
if (proc) {
- if (proclist_same(plp, proc)) {
+ if (erts_proclist_same(plp, proc)) {
resume_process(proc);
nresumed++;
}
@@ -6520,57 +6499,54 @@ erts_resume_processes(ErtsProcList *plp)
Eterm
erts_get_process_priority(Process *p)
{
- ErtsRunQueue *rq;
- Eterm value;
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- rq = erts_get_runq_proc(p);
- erts_smp_runq_lock(rq);
- switch(p->prio) {
- case PRIORITY_MAX: value = am_max; break;
- case PRIORITY_HIGH: value = am_high; break;
- case PRIORITY_NORMAL: value = am_normal; break;
- case PRIORITY_LOW: value = am_low; break;
- default: ASSERT(0); value = am_undefined; break;
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&p->state);
+ switch (state & ERTS_PSFLG_PRIO_MASK) {
+ case PRIORITY_MAX: return am_max;
+ case PRIORITY_HIGH: return am_high;
+ case PRIORITY_NORMAL: return am_normal;
+ case PRIORITY_LOW: return am_low;
+ default: ASSERT(0); return am_undefined;
}
- erts_smp_runq_unlock(rq);
- return value;
}
Eterm
-erts_set_process_priority(Process *p, Eterm new_value)
+erts_set_process_priority(Process *p, Eterm value)
{
- ErtsRunQueue *rq;
- Eterm old_value;
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- rq = erts_get_runq_proc(p);
-#ifdef ERTS_SMP
- ASSERT(!(p->status_flags & ERTS_PROC_SFLG_INRUNQ));
-#endif
- erts_smp_runq_lock(rq);
- switch(p->prio) {
- case PRIORITY_MAX: old_value = am_max; break;
- case PRIORITY_HIGH: old_value = am_high; break;
- case PRIORITY_NORMAL: old_value = am_normal; break;
- case PRIORITY_LOW: old_value = am_low; break;
- default: ASSERT(0); old_value = am_undefined; break;
- }
- switch (new_value) {
- case am_max: p->prio = PRIORITY_MAX; break;
- case am_high: p->prio = PRIORITY_HIGH; break;
- case am_normal: p->prio = PRIORITY_NORMAL; break;
- case am_low: p->prio = PRIORITY_LOW; break;
- default: old_value = THE_NON_VALUE; break;
+ erts_aint32_t a, oprio, nprio;
+
+ switch (value) {
+ case am_max: nprio = (erts_aint32_t) PRIORITY_MAX; break;
+ case am_high: nprio = (erts_aint32_t) PRIORITY_HIGH; break;
+ case am_normal: nprio = (erts_aint32_t) PRIORITY_NORMAL; break;
+ case am_low: nprio = (erts_aint32_t) PRIORITY_LOW; break;
+ default: return THE_NON_VALUE; break;
}
- erts_smp_runq_unlock(rq);
- return old_value;
-}
-/* note that P_RUNNING is only set so that we don't try to remove
-** running processes from the schedule queue if they exit - a running
-** process not being in the schedule queue!!
-** Schedule for up to INPUT_REDUCTIONS context switches,
-** return 1 if more to do.
-*/
+ a = erts_smp_atomic32_read_nob(&p->state);
+ if (nprio == (a & ERTS_PSFLG_PRIO_MASK))
+ oprio = nprio;
+ else {
+ erts_aint32_t e, n;
+ do {
+ oprio = a & ERTS_PSFLG_PRIO_MASK;
+ n = e = a;
+
+ ASSERT(!(a & ERTS_PSFLG_IN_RUNQ));
+
+ n &= ~ERTS_PSFLG_PRIO_MASK;
+ n |= nprio;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ } while (a != e);
+ }
+
+ switch (oprio) {
+ case PRIORITY_MAX: return am_max;
+ case PRIORITY_HIGH: return am_high;
+ case PRIORITY_NORMAL: return am_normal;
+ case PRIORITY_LOW: return am_low;
+ default: ASSERT(0); return am_undefined;
+ }
+}
/*
* schedule() is called from BEAM (process_main()) or HiPE
@@ -6593,7 +6569,6 @@ erts_set_process_priority(Process *p, Eterm new_value)
Process *schedule(Process *p, int calls)
{
ErtsRunQueue *rq;
- ErtsRunPrioQueue *rpq;
erts_aint_t dt;
ErtsSchedulerData *esdp;
int context_reds;
@@ -6601,6 +6576,8 @@ Process *schedule(Process *p, int calls)
int input_reductions;
int actual_reds;
int reds;
+ Uint32 flags;
+ erts_aint32_t state = 0; /* Supress warning... */
#ifdef USE_VM_PROBES
if (p != NULL && DTRACE_ENABLED(process_unscheduled)) {
@@ -6656,95 +6633,61 @@ Process *schedule(Process *p, int calls)
erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- if ((erts_system_profile_flags.runnable_procs)
- && (p->status == P_WAITING)) {
- profile_runnable_proc(p, am_inactive);
- }
+ state = erts_smp_atomic32_read_acqb(&p->state);
if (IS_TRACED(p)) {
- if (IS_TRACED_FL(p, F_TRACE_CALLS) && p->status != P_FREE) {
+ if (IS_TRACED_FL(p, F_TRACE_CALLS) && !(state & ERTS_PSFLG_FREE))
erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_OUT);
- }
- switch (p->status) {
- case P_EXITING:
+ if (state & (ERTS_PSFLG_FREE|ERTS_PSFLG_EXITING)) {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT))
- trace_sched(p, am_out_exiting);
- break;
- case P_FREE:
- if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT))
- trace_sched(p, am_out_exited);
- break;
- default:
+ trace_sched(p, ((state & ERTS_PSFLG_FREE)
+ ? am_out_exited
+ : am_out_exiting));
+ }
+ else {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED))
trace_sched(p, am_out);
else if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_PROCS))
trace_virtual_sched(p, am_out);
- break;
}
- }
-
-#ifdef ERTS_SMP
- if (ERTS_PROC_PENDING_EXIT(p)) {
- erts_handle_pending_exit(p,
- ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ;
}
- if (p->pending_suspenders) {
- handle_pending_suspend(p,
- ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- ASSERT(!(p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ)
- || p->rcount == 0);
- }
+#ifdef ERTS_SMP
+ if (state & ERTS_PSFLG_PENDING_EXIT)
+ erts_handle_pending_exit(p, (ERTS_PROC_LOCK_MAIN
+ | ERTS_PROC_LOCK_STATUS));
+ if (p->pending_suspenders)
+ handle_pending_suspend(p, (ERTS_PROC_LOCK_MAIN
+ | ERTS_PROC_LOCK_STATUS));
#endif
esdp->reductions += reds;
- erts_smp_runq_lock(rq);
+ schedule_out_process(rq, state, p); /* Returns with rq locked! */
- ERTS_PROC_REDUCTIONS_EXECUTED(rq, p->prio, reds, actual_reds);
+ ERTS_PROC_REDUCTIONS_EXECUTED(rq,
+ (int) (state & ERTS_PSFLG_PRIO_MASK),
+ reds,
+ actual_reds);
esdp->current_process = NULL;
#ifdef ERTS_SMP
p->scheduler_data = NULL;
- p->runq_flags &= ~ERTS_PROC_RUNQ_FLG_RUNNING;
- p->status_flags &= ~ERTS_PROC_SFLG_RUNNING;
-
- if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) {
- ErtsRunQueue *notify_runq;
- p->status_flags &= ~ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- notify_runq = internal_add_to_runq(rq, p);
- if (notify_runq != rq)
- smp_notify_inc_runq(notify_runq);
- }
#endif
- if (p->status == P_FREE) {
+ if (state & ERTS_PSFLG_FREE) {
#ifdef ERTS_SMP
ASSERT(esdp->free_process == p);
esdp->free_process = NULL;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- erts_smp_proc_dec_refc(p);
#else
erts_free_proc(p);
#endif
- } else {
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
}
-#ifdef ERTS_SMP
- {
- ErtsProcList *pnd_xtrs = rq->procs.pending_exiters;
- rq->procs.pending_exiters = NULL;
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- if (pnd_xtrs) {
- erts_smp_runq_unlock(rq);
- handle_pending_exiters(pnd_xtrs);
- erts_smp_runq_lock(rq);
- }
-
- }
+#ifdef ERTS_SMP
ASSERT(!esdp->free_process);
#endif
ASSERT(!esdp->current_process);
@@ -6764,8 +6707,22 @@ Process *schedule(Process *p, int calls)
ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
check_activities_to_run: {
+#ifdef ERTS_SMP
+ ErtsMigrationPaths *mps;
+ ErtsMigrationPath *mp;
#ifdef ERTS_SMP
+ {
+ ErtsProcList *pnd_xtrs = rq->procs.pending_exiters;
+ if (erts_proclist_fetch(&pnd_xtrs, NULL)) {
+ rq->procs.pending_exiters = NULL;
+ erts_smp_runq_unlock(rq);
+ handle_pending_exiters(pnd_xtrs);
+ erts_smp_runq_lock(rq);
+ }
+
+ }
+#endif
if (rq->check_balance_reds <= 0)
check_balance(rq);
@@ -6773,20 +6730,28 @@ Process *schedule(Process *p, int calls)
ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- if (rq->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK)
- immigrate(rq);
+ mps = erts_get_migration_paths_managed();
+ mp = &mps->mpath[rq->ix];
+
+ if (mp->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK)
+ immigrate(rq, mp);
- continue_check_activities_to_run:
+ continue_check_activities_to_run:
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ continue_check_activities_to_run_known_flags:
- if (rq->flags & (ERTS_RUNQ_FLG_CHK_CPU_BIND
- | ERTS_RUNQ_FLG_SUSPENDED)) {
- if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) {
- ASSERT(erts_smp_atomic32_read_nob(&esdp->ssi->flags)
- & ERTS_SSI_FLG_SUSPENDED);
+
+ if (flags & (ERTS_RUNQ_FLG_CHK_CPU_BIND|ERTS_RUNQ_FLG_SUSPENDED)) {
+
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED) {
suspend_scheduler(esdp);
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
}
- if (rq->flags & ERTS_RUNQ_FLG_CHK_CPU_BIND)
+ if (flags & ERTS_RUNQ_FLG_CHK_CPU_BIND) {
+ flags = ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_CHK_CPU_BIND);
+ flags &= ~ ERTS_RUNQ_FLG_CHK_CPU_BIND;
erts_sched_check_cpu_bind(esdp);
+ }
}
{
@@ -6815,14 +6780,12 @@ Process *schedule(Process *p, int calls)
}
#endif /* ERTS_SMP */
- ASSERT(rq->len == rq->procs.len + rq->ports.info.len);
-
- if ((rq->len == 0 && !rq->misc.start)
- || (rq->halt_in_progress
- && rq->ports.info.len == 0 && !rq->misc.start)) {
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ if ((!(flags & ERTS_RUNQ_FLGS_QMASK) && !rq->misc.start)
+ || (rq->halt_in_progress && ERTS_EMPTY_RUNQ_PORTS(rq))) {
+ /* Prepare for scheduler wait */
#ifdef ERTS_SMP
-
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
rq->wakeup_other = 0;
@@ -6830,21 +6793,27 @@ Process *schedule(Process *p, int calls)
empty_runq(rq);
- if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) {
- ASSERT(erts_smp_atomic32_read_nob(&esdp->ssi->flags)
- & ERTS_SSI_FLG_SUSPENDED);
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED) {
non_empty_runq(rq);
- goto continue_check_activities_to_run;
+ goto continue_check_activities_to_run_known_flags;
}
- else if (!(rq->flags & ERTS_RUNQ_FLG_INACTIVE)) {
+ else if (!(flags & ERTS_RUNQ_FLG_INACTIVE)) {
+ if (try_steal_task(rq)) {
+ non_empty_runq(rq);
+ goto continue_check_activities_to_run;
+ }
+
+ (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
+
/*
* Check for ERTS_RUNQ_FLG_SUSPENDED has to be done
* after trying to steal a task.
*/
- if (try_steal_task(rq)
- || (rq->flags & ERTS_RUNQ_FLG_SUSPENDED)) {
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED) {
non_empty_runq(rq);
- goto continue_check_activities_to_run;
+ goto continue_check_activities_to_run_known_flags;
}
}
@@ -6875,6 +6844,7 @@ Process *schedule(Process *p, int calls)
erl_sys_schedule(1);
dt = erts_do_time_read_and_reset();
if (dt) erts_bump_timer(dt);
+
#ifdef ERTS_SMP
erts_smp_runq_lock(rq);
clear_sys_scheduling();
@@ -6888,14 +6858,14 @@ Process *schedule(Process *p, int calls)
exec_misc_ops(rq);
#ifdef ERTS_SMP
- wakeup_other.check(rq);
+ wakeup_other.check(rq, flags);
#endif
/*
* Find a new port to run.
*/
- if (rq->ports.info.len) {
+ if (RUNQ_READ_LEN(&rq->ports.info.len)) {
int have_outstanding_io;
have_outstanding_io = erts_port_task_execute(rq, &esdp->current_port);
if ((have_outstanding_io && fcalls > 2*input_reductions)
@@ -6922,167 +6892,130 @@ Process *schedule(Process *p, int calls)
/*
* Find a new process to run.
*/
- pick_next_process:
-
- ERTS_DBG_CHK_PROCS_RUNQ(rq);
-
- switch (rq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) {
- case MAX_BIT:
- case MAX_BIT|HIGH_BIT:
- case MAX_BIT|NORMAL_BIT:
- case MAX_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT:
- case MAX_BIT|HIGH_BIT|LOW_BIT:
- case MAX_BIT|NORMAL_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT|LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_MAX];
- break;
- case HIGH_BIT:
- case HIGH_BIT|NORMAL_BIT:
- case HIGH_BIT|LOW_BIT:
- case HIGH_BIT|NORMAL_BIT|LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_HIGH];
- break;
- case NORMAL_BIT:
- rpq = &rq->procs.prio[PRIORITY_NORMAL];
- break;
- case LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_NORMAL];
- break;
- case NORMAL_BIT|LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_NORMAL];
- ASSERT(rpq->first != NULL);
- p = rpq->first;
- if (p->prio == PRIORITY_LOW) {
- if (p == rpq->last || p->skipped >= RESCHEDULE_LOW-1)
- p->skipped = 0;
- else {
- /* skip it */
- p->skipped++;
- rpq->first = p->next;
- rpq->first->prev = NULL;
- rpq->last->next = p;
- p->prev = rpq->last;
- p->next = NULL;
- rpq->last = p;
+ pick_next_process: {
+ int prio_q;
+ int qmask;
+
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ qmask = (int) (flags & ERTS_RUNQ_FLGS_PROCS_QMASK);
+ switch (qmask & -qmask) {
+ case MAX_BIT:
+ prio_q = PRIORITY_MAX;
+ break;
+ case HIGH_BIT:
+ prio_q = PRIORITY_HIGH;
+ break;
+ case NORMAL_BIT:
+ case LOW_BIT:
+ prio_q = PRIORITY_NORMAL;
+ if (check_requeue_process(rq, PRIORITY_NORMAL))
goto pick_next_process;
- }
+ break;
+ case 0: /* No process at all */
+ default:
+ ASSERT(qmask == 0);
+ goto check_activities_to_run;
}
- break;
- case 0: /* No process at all */
- default:
- ASSERT((rq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) == 0);
- ASSERT(rq->procs.len == 0);
- goto check_activities_to_run;
- }
- BM_START_TIMER(system);
+ BM_START_TIMER(system);
- /*
- * Take the chosen process out of the queue.
- */
- ASSERT(rpq->first); /* Wrong qmask in rq->flags? */
- p = rpq->first;
-#ifdef ERTS_SMP
- ERTS_SMP_LC_ASSERT(rq == p->run_queue);
-#endif
- rpq->first = p->next;
- if (!rpq->first)
- rpq->last = NULL;
- else
- rpq->first->prev = NULL;
-
- p->next = p->prev = NULL;
-
- if (--rq->procs.prio_info[p->prio].len == 0)
- rq->flags &= ~(1 << p->prio);
- ASSERT(rq->procs.len > 0);
- rq->procs.len--;
- ASSERT(rq->len > 0);
- rq->len--;
+ /*
+ * Take the chosen process out of the queue.
+ */
+ p = dequeue_process(rq, prio_q, &state);
- {
- Uint32 ee_flgs = (ERTS_RUNQ_FLG_EVACUATE(p->prio)
- | ERTS_RUNQ_FLG_EMIGRATE(p->prio));
+ ASSERT(p); /* Wrong qmask in rq->flags? */
- if ((rq->flags & (ERTS_RUNQ_FLG_SUSPENDED|ee_flgs)) == ee_flgs)
- ERTS_UNSET_RUNQ_FLG_EVACUATE(rq->flags, p->prio);
- }
+ while (1) {
+ erts_aint32_t exp, new, tmp;
+ tmp = new = exp = state;
+ new &= ~ERTS_PSFLG_IN_RUNQ;
+ tmp = state & (ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT);
+ if (tmp != ERTS_PSFLG_SUSPENDED)
+ new |= ERTS_PSFLG_RUNNING;
+ state = erts_smp_atomic32_cmpxchg_relb(&p->state, new, exp);
+ if (state == exp) {
+ tmp = state & (ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT);
+ if (tmp == ERTS_PSFLG_SUSPENDED)
+ goto pick_next_process;
+ state = new;
+ break;
+ }
+ }
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(rq, p);
+ rq->procs.context_switches++;
- rq->procs.context_switches++;
+ esdp->current_process = p;
- esdp->current_process = p;
+ }
#ifdef ERTS_SMP
- p->runq_flags |= ERTS_PROC_RUNQ_FLG_RUNNING;
erts_smp_runq_unlock(rq);
+ if (flags & ERTS_RUNQ_FLG_PROTECTED)
+ (void) ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
+
ERTS_SMP_CHK_NO_PROC_LOCKS;
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
if (erts_sched_stat.enabled) {
+ int prio;
UWord old = ERTS_PROC_SCHED_ID(p,
(ERTS_PROC_LOCK_MAIN
| ERTS_PROC_LOCK_STATUS),
(UWord) esdp->no);
int migrated = old && old != esdp->no;
+ prio = (int) (state & ERTS_PSFLG_PRIO_MASK);
+
erts_smp_spin_lock(&erts_sched_stat.lock);
- erts_sched_stat.prio[p->prio].total_executed++;
- erts_sched_stat.prio[p->prio].executed++;
+ erts_sched_stat.prio[prio].total_executed++;
+ erts_sched_stat.prio[prio].executed++;
if (migrated) {
- erts_sched_stat.prio[p->prio].total_migrated++;
- erts_sched_stat.prio[p->prio].migrated++;
+ erts_sched_stat.prio[prio].total_migrated++;
+ erts_sched_stat.prio[prio].migrated++;
}
erts_smp_spin_unlock(&erts_sched_stat.lock);
}
- p->status_flags |= ERTS_PROC_SFLG_RUNNING;
- p->status_flags &= ~ERTS_PROC_SFLG_INRUNQ;
if (ERTS_PROC_PENDING_EXIT(p)) {
erts_handle_pending_exit(p,
ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
+ state = erts_smp_atomic32_read_nob(&p->state);
}
ASSERT(!p->scheduler_data);
p->scheduler_data = esdp;
-
#endif
- ASSERT(p->status != P_SUSPENDED); /* Never run a suspended process */
+ /* Never run a suspended process */
+ ASSERT(!(ERTS_PSFLG_SUSPENDED & erts_smp_atomic32_read_nob(&p->state)));
reds = context_reds;
if (IS_TRACED(p)) {
- switch (p->status) {
- case P_EXITING:
+ if (state & ERTS_PSFLG_EXITING) {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT))
trace_sched(p, am_in_exiting);
- break;
- default:
+ }
+ else {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED))
trace_sched(p, am_in);
else if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_PROCS))
trace_virtual_sched(p, am_in);
- break;
}
if (IS_TRACED_FL(p, F_TRACE_CALLS)) {
erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_IN);
}
}
- if (p->status != P_EXITING)
- p->status = P_RUNNING;
-
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
#ifdef ERTS_SMP
- if (is_not_nil(p->tracer_proc))
+ if (is_not_nil(ERTS_TRACER_PROC(p)))
erts_check_my_tracer_proc(p);
#endif
- if (!ERTS_PROC_IS_EXITING(p)
+ if (!(state & ERTS_PSFLG_EXITING)
&& ((FLAGS(p) & F_FORCE_GC)
|| (MSO(p).overhead > BIN_VHEAP_SZ(p)))) {
reds -= erts_garbage_collect(p, 0, p->arg_reg, p->arity);
@@ -7173,17 +7106,19 @@ erts_schedule_misc_op(void (*func)(void *), void *arg)
ErtsSchedulerData *esdp = erts_get_scheduler_data();
ErtsRunQueue *rq = esdp ? esdp->run_queue : ERTS_RUNQ_IX(0);
ErtsMiscOpList *molp = misc_op_list_alloc();
+#ifdef ERTS_SMP
+ ErtsMigrationPaths *mpaths = erts_get_migration_paths();
- erts_smp_runq_lock(rq);
-
- while (rq->misc.evac_runq) {
- ErtsRunQueue *tmp_rq = rq->misc.evac_runq;
- erts_smp_runq_unlock(rq);
- rq = tmp_rq;
- erts_smp_runq_lock(rq);
+ if (!mpaths)
+ rq = ERTS_RUNQ_IX(0);
+ else {
+ ErtsRunQueue *erq = mpaths->mpath[rq->ix].misc_evac_runq;
+ if (erq)
+ rq = erq;
}
+#endif
- ASSERT(!(rq->flags & ERTS_RUNQ_FLG_SUSPENDED));
+ erts_smp_runq_lock(rq);
molp->next = NULL;
molp->func = func;
@@ -7193,7 +7128,9 @@ erts_schedule_misc_op(void (*func)(void *), void *arg)
else
rq->misc.start = molp;
rq->misc.end = molp;
+
erts_smp_runq_unlock(rq);
+
smp_notify_inc_runq(rq);
}
@@ -7277,156 +7214,75 @@ erts_get_exact_total_reductions(Process *c_p, Uint *redsp, Uint *diffp)
erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
}
-/*
- * erts_test_next_pid() is only used for testing.
- */
-Sint
-erts_test_next_pid(int set, Uint next)
+void
+erts_free_proc(Process *p)
{
- Sint res;
- Sint p_prev;
-
-
- erts_smp_mtx_lock(&proc_tab_mtx);
-
- if (!set) {
- res = p_next < 0 ? -1 : (p_serial << p_serial_shift | p_next);
- }
- else {
-
- p_serial = (Sint) ((next >> p_serial_shift) & p_serial_mask);
- p_next = (Sint) (erts_process_tab_index_mask & next);
-
- if (p_next >= erts_max_processes) {
- p_next = 0;
- p_serial++;
- p_serial &= p_serial_mask;
- }
-
- p_prev = p_next;
-
- do {
- if (!process_tab[p_next])
- break;
- p_next++;
- if(p_next >= erts_max_processes) {
- p_next = 0;
- p_serial++;
- p_serial &= p_serial_mask;
- }
- } while (p_prev != p_next);
-
- res = process_tab[p_next] ? -1 : (p_serial << p_serial_shift | p_next);
-
- }
+#ifdef ERTS_SMP
+ erts_proc_lock_fin(p);
+#endif
+ erts_free(ERTS_ALC_T_PROC, (void *) p);
+}
- erts_smp_mtx_unlock(&proc_tab_mtx);
+typedef struct {
+ Process *proc;
+ erts_aint32_t state;
+ ErtsRunQueue *run_queue;
+} ErtsEarlyProcInit;
- return res;
+static void early_init_process_struct(void *varg, Eterm data)
+{
+ ErtsEarlyProcInit *arg = (ErtsEarlyProcInit *) varg;
+ Process *proc = arg->proc;
-}
+ proc->common.id = make_internal_pid(data);
+ erts_smp_atomic32_init_relb(&proc->state, arg->state);
-Uint erts_process_count(void)
-{
- erts_aint32_t res = erts_smp_atomic32_read_nob(&process_count);
- ASSERT(res >= 0);
- return (Uint) res;
-}
+#ifdef ERTS_SMP
+ RUNQ_SET_RQ(&proc->run_queue, arg->run_queue);
-void
-erts_free_proc(Process *p)
-{
-#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
- erts_lcnt_proc_lock_destroy(p);
+ erts_proc_lock_init(proc); /* All locks locked */
#endif
- erts_free(ERTS_ALC_T_PROC, (void *) p);
-}
+}
/*
** Allocate process and find out where to place next process.
*/
static Process*
-alloc_process(void)
+alloc_process(ErtsRunQueue *rq, erts_aint32_t state)
{
-#ifdef ERTS_SMP
- erts_pix_lock_t *pix_lock;
-#endif
- Process* p;
- int p_prev;
-
- erts_smp_mtx_lock(&proc_tab_mtx);
-
- if (p_next == -1) {
- p = NULL;
- goto error; /* Process table full! */
- }
+ ErtsEarlyProcInit init_arg;
+ Process *p;
- p = (Process*) erts_alloc_fnf(ERTS_ALC_T_PROC, sizeof(Process));
+ p = erts_alloc_fnf(ERTS_ALC_T_PROC, sizeof(Process));
if (!p)
- goto error; /* ENOMEM */
-
- p_last = p_next;
+ return NULL;
- erts_get_emu_time(&p->started);
+ init_arg.proc = (Process *) p;
+ init_arg.run_queue = rq;
+ init_arg.state = state;
-#ifdef ERTS_SMP
- pix_lock = ERTS_PIX2PIXLOCK(p_next);
- erts_pix_lock(pix_lock);
-#endif
- ASSERT(!process_tab[p_next]);
+ ASSERT(((char *) p) == ((char *) &p->common));
- process_tab[p_next] = p;
- erts_smp_atomic32_inc_nob(&process_count);
- p->id = make_internal_pid(p_serial << p_serial_shift | p_next);
- if (p->id == ERTS_INVALID_PID) {
- /* Do not use the invalid pid; change serial */
- p_serial++;
- p_serial &= p_serial_mask;
- p->id = make_internal_pid(p_serial << p_serial_shift | p_next);
- ASSERT(p->id != ERTS_INVALID_PID);
+ if (!erts_ptab_new_element(&erts_proc,
+ &p->common,
+ (void *) &init_arg,
+ early_init_process_struct)) {
+ erts_free(ERTS_ALC_T_PROC, p);
+ return NULL;
}
- ASSERT(internal_pid_serial(p->id) <= (erts_use_r9_pids_ports
- ? ERTS_MAX_PID_R9_SERIAL
- : ERTS_MAX_PID_SERIAL));
-#ifdef ERTS_SMP
- erts_proc_lock_init(p); /* All locks locked */
- erts_pix_unlock(pix_lock);
-#endif
-
- p->rstatus = P_FREE;
+ ASSERT(internal_pid_serial(p->common.id) <= ERTS_MAX_PID_SERIAL);
+
+ p->approx_started = erts_get_approx_time();
p->rcount = 0;
- /*
- * set p_next to the next available slot
- */
- p_prev = p_next;
-
- while (1) {
- p_next++;
- if(p_next >= erts_max_processes) {
- p_serial++;
- p_serial &= p_serial_mask;
- p_next = 0;
- }
-
- if (p_prev == p_next) {
- p_next = -1;
- break; /* Table full! */
- }
-
- if (!process_tab[p_next])
- break; /* found a free slot */
- }
-
- error:
-
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ ASSERT(p == (Process *) (erts_ptab_pix2intptr_nob(
+ &erts_proc,
+ internal_pid_index(p->common.id))));
return p;
-
}
Eterm
@@ -7436,13 +7292,15 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
Eterm args, /* Arguments for function (must be well-formed list). */
ErlSpawnOpts* so) /* Options for spawn. */
{
- ErtsRunQueue *rq, *notify_runq;
+ ErtsRunQueue *rq = NULL;
Process *p;
Sint arity; /* Number of arguments. */
Uint arg_size; /* Size of arguments. */
Uint sz; /* Needed words on heap. */
Uint heap_need; /* Size needed on heap. */
Eterm res = THE_NON_VALUE;
+ erts_aint32_t state = 0;
+ erts_aint32_t prio = (erts_aint32_t) PRIORITY_NORMAL;
#ifdef ERTS_SMP
erts_smp_proc_lock(parent, ERTS_PROC_LOCKS_ALL_MINOR);
@@ -7456,8 +7314,24 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
so->error_code = BADARG;
goto error;
}
- p = alloc_process(); /* All proc locks are locked by this thread
- on success */
+
+ if (so->flags & SPO_USE_ARGS) {
+ if (so->scheduler) {
+ int ix = so->scheduler-1;
+ ASSERT(0 <= ix && ix < erts_no_run_queues);
+ rq = ERTS_RUNQ_IX(ix);
+ state |= ERTS_PSFLG_BOUND;
+ }
+ prio = (erts_aint32_t) so->priority;
+ }
+
+ state |= (prio & ERTS_PSFLG_PRIO_MASK);
+
+ if (!rq)
+ rq = erts_get_runq_proc(parent);
+
+ p = alloc_process(rq, state); /* All proc locks are locked by this thread
+ on success */
if (!p) {
erts_send_error_to_logger_str(parent->group_leader,
"Too many processes\n");
@@ -7477,22 +7351,16 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->flags = erts_default_process_flags;
- /* Scheduler queue mutex should be locked when changeing
- * prio. In this case we don't have to lock it, since
- * noone except us has access to the process.
- */
if (so->flags & SPO_USE_ARGS) {
p->min_heap_size = so->min_heap_size;
p->min_vheap_size = so->min_vheap_size;
- p->prio = so->priority;
p->max_gen_gcs = so->max_gen_gcs;
} else {
p->min_heap_size = H_MIN_SIZE;
p->min_vheap_size = BIN_VH_MIN_SIZE;
- p->prio = PRIORITY_NORMAL;
p->max_gen_gcs = (Uint16) erts_smp_atomic32_read_nob(&erts_max_gen_gcs);
}
- p->skipped = 0;
+ p->schedule_count = 0;
ASSERT(p->min_heap_size == erts_next_heap_size(p->min_heap_size, 0));
p->initial[INITIAL_MOD] = mod;
@@ -7561,21 +7429,21 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->reds = 0;
#ifdef ERTS_SMP
- p->u.ptimer = NULL;
+ p->common.u.alive.ptimer = NULL;
#else
- sys_memset(&p->u.tm, 0, sizeof(ErlTimer));
+ sys_memset(&p->common.u.alive.tm, 0, sizeof(ErlTimer));
#endif
- p->reg = NULL;
- p->nlinks = NULL;
- p->monitors = NULL;
+ p->common.u.alive.reg = NULL;
+ ERTS_P_LINKS(p) = NULL;
+ ERTS_P_MONITORS(p) = NULL;
p->nodes_monitors = NULL;
p->suspend_monitors = NULL;
ASSERT(is_pid(parent->group_leader));
if (parent->group_leader == ERTS_INVALID_PID)
- p->group_leader = p->id;
+ p->group_leader = p->common.id;
else {
/* Needs to be done after the heap has been set up */
p->group_leader =
@@ -7584,7 +7452,7 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
: STORE_NC(&p->htop, &p->off_heap, parent->group_leader);
}
- erts_get_default_tracing(&p->trace_flags, &p->tracer_proc);
+ erts_get_default_tracing(&ERTS_TRACE_FLAGS(p), &ERTS_TRACER_PROC(p));
p->msg.first = NULL;
p->msg.last = &p->msg.first;
@@ -7594,9 +7462,8 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->msg_inq.first = NULL;
p->msg_inq.last = &p->msg_inq.first;
p->msg_inq.len = 0;
- p->bound_runq = NULL;
#endif
- p->bif_timers = NULL;
+ p->u.bif_timers = NULL;
p->mbuf = NULL;
p->mbuf_sz = 0;
p->psd = NULL;
@@ -7608,7 +7475,9 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
DT_UTAG(p) = NIL;
DT_UTAG_FLAGS(p) = 0;
#endif
- p->parent = parent->id == ERTS_INVALID_PID ? NIL : parent->id;
+ p->parent = (parent->common.id == ERTS_INVALID_PID
+ ? NIL
+ : parent->common.id);
INIT_HOLE_CHECK(p);
#ifdef DEBUG
@@ -7616,18 +7485,19 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
#endif
if (IS_TRACED(parent)) {
- if (parent->trace_flags & F_TRACE_SOS) {
- p->trace_flags |= (parent->trace_flags & TRACEE_FLAGS);
- p->tracer_proc = parent->tracer_proc;
+ if (ERTS_TRACE_FLAGS(parent) & F_TRACE_SOS) {
+ ERTS_TRACE_FLAGS(p) |= (ERTS_TRACE_FLAGS(parent) & TRACEE_FLAGS);
+ ERTS_TRACER_PROC(p) = ERTS_TRACER_PROC(parent);
}
if (ARE_TRACE_FLAGS_ON(parent, F_TRACE_PROCS)) {
- trace_proc_spawn(parent, p->id, mod, func, args);
+ trace_proc_spawn(parent, p->common.id, mod, func, args);
}
- if (parent->trace_flags & F_TRACE_SOS1) { /* Overrides TRACE_CHILDREN */
- p->trace_flags |= (parent->trace_flags & TRACEE_FLAGS);
- p->tracer_proc = parent->tracer_proc;
- p->trace_flags &= ~(F_TRACE_SOS1 | F_TRACE_SOS);
- parent->trace_flags &= ~(F_TRACE_SOS1 | F_TRACE_SOS);
+ if (ERTS_TRACE_FLAGS(parent) & F_TRACE_SOS1) {
+ /* Overrides TRACE_CHILDREN */
+ ERTS_TRACE_FLAGS(p) |= (ERTS_TRACE_FLAGS(parent) & TRACEE_FLAGS);
+ ERTS_TRACER_PROC(p) = ERTS_TRACER_PROC(parent);
+ ERTS_TRACE_FLAGS(p) &= ~(F_TRACE_SOS1 | F_TRACE_SOS);
+ ERTS_TRACE_FLAGS(parent) &= ~(F_TRACE_SOS1 | F_TRACE_SOS);
}
}
@@ -7640,27 +7510,27 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
int ret;
#endif
if (IS_TRACED_FL(parent, F_TRACE_PROCS)) {
- trace_proc(parent, parent, am_link, p->id);
+ trace_proc(parent, parent, am_link, p->common.id);
}
#ifdef DEBUG
- ret = erts_add_link(&(parent->nlinks), LINK_PID, p->id);
+ ret = erts_add_link(&ERTS_P_LINKS(parent), LINK_PID, p->common.id);
ASSERT(ret == 0);
- ret = erts_add_link(&(p->nlinks), LINK_PID, parent->id);
+ ret = erts_add_link(&ERTS_P_LINKS(p), LINK_PID, parent->common.id);
ASSERT(ret == 0);
#else
- erts_add_link(&(parent->nlinks), LINK_PID, p->id);
- erts_add_link(&(p->nlinks), LINK_PID, parent->id);
+ erts_add_link(&ERTS_P_LINKS(parent), LINK_PID, p->common.id);
+ erts_add_link(&ERTS_P_LINKS(p), LINK_PID, parent->common.id);
#endif
if (IS_TRACED(parent)) {
- if (parent->trace_flags & (F_TRACE_SOL|F_TRACE_SOL1)) {
- p->trace_flags |= (parent->trace_flags & TRACEE_FLAGS);
- p->tracer_proc = parent->tracer_proc; /* maybe steal */
+ if (ERTS_TRACE_FLAGS(parent) & (F_TRACE_SOL|F_TRACE_SOL1)) {
+ ERTS_TRACE_FLAGS(p) |= (ERTS_TRACE_FLAGS(parent)&TRACEE_FLAGS);
+ ERTS_TRACER_PROC(p) = ERTS_TRACER_PROC(parent); /*maybe steal*/
- if (parent->trace_flags & F_TRACE_SOL1) { /* maybe override */
- p ->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
- parent->trace_flags &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
+ if (ERTS_TRACE_FLAGS(parent) & F_TRACE_SOL1) {/*maybe override*/
+ ERTS_TRACE_FLAGS(p) &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
+ ERTS_TRACE_FLAGS(parent) &= ~(F_TRACE_SOL1 | F_TRACE_SOL);
}
}
}
@@ -7673,16 +7543,13 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
Eterm mref;
mref = erts_make_ref(parent);
- erts_add_monitor(&(parent->monitors), MON_ORIGIN, mref, p->id, NIL);
- erts_add_monitor(&(p->monitors), MON_TARGET, mref, parent->id, NIL);
+ erts_add_monitor(&ERTS_P_MONITORS(parent), MON_ORIGIN, mref, p->common.id, NIL);
+ erts_add_monitor(&ERTS_P_MONITORS(p), MON_TARGET, mref, parent->common.id, NIL);
so->mref = mref;
}
#ifdef ERTS_SMP
p->scheduler_data = NULL;
- p->is_exiting = 0;
- p->status_flags = 0;
- p->runq_flags = 0;
p->suspendee = NIL;
p->pending_suspenders = NULL;
p->pending_exit.reason = THE_NON_VALUE;
@@ -7693,36 +7560,17 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->fp_exception = 0;
#endif
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
+
+ res = p->common.id;
+
/*
* Schedule process for execution.
*/
- if (!((so->flags & SPO_USE_ARGS) && so->scheduler))
- rq = erts_get_runq_proc(parent);
- else {
- int ix = so->scheduler-1;
- ASSERT(0 <= ix && ix < erts_no_run_queues);
- rq = ERTS_RUNQ_IX(ix);
- p->bound_runq = rq;
- }
-
- erts_smp_runq_lock(rq);
-
-#ifdef ERTS_SMP
- p->run_queue = rq;
-#endif
-
- p->status = P_WAITING;
- notify_runq = internal_add_to_runq(rq, p);
-
- erts_smp_runq_unlock(rq);
+ schedule_process(p, state, 0);
- smp_notify_inc_runq(notify_runq);
-
- res = p->id;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
-
- VERBOSE(DEBUG_PROCESSES, ("Created a new process: %T\n",p->id));
+ VERBOSE(DEBUG_PROCESSES, ("Created a new process: %T\n",p->common.id));
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(process_spawn)) {
@@ -7756,15 +7604,11 @@ void erts_init_empty_process(Process *p)
p->max_gen_gcs = 0;
p->min_heap_size = 0;
p->min_vheap_size = 0;
- p->status = P_RUNABLE;
- p->gcstatus = P_RUNABLE;
- p->rstatus = P_RUNABLE;
p->rcount = 0;
- p->id = ERTS_INVALID_PID;
- p->prio = PRIORITY_NORMAL;
+ p->common.id = ERTS_INVALID_PID;
p->reds = 0;
- p->tracer_proc = NIL;
- p->trace_flags = F_INITIAL_TRACE_FLAGS;
+ ERTS_TRACER_PROC(p) = NIL;
+ ERTS_TRACE_FLAGS(p) = F_INITIAL_TRACE_FLAGS;
p->group_leader = ERTS_INVALID_PID;
p->flags = 0;
p->fvalue = NIL;
@@ -7777,15 +7621,14 @@ void erts_init_empty_process(Process *p)
p->bin_old_vheap = 0;
p->bin_vheap_mature = 0;
#ifdef ERTS_SMP
- p->u.ptimer = NULL;
- p->bound_runq = NULL;
+ p->common.u.alive.ptimer = NULL;
#else
- memset(&(p->u.tm), 0, sizeof(ErlTimer));
+ memset(&(p->common.u.alive.tm), 0, sizeof(ErlTimer));
#endif
p->next = NULL;
p->off_heap.first = NULL;
p->off_heap.overhead = 0;
- p->reg = NULL;
+ p->common.u.alive.reg = NULL;
p->heap_sz = 0;
p->high_water = NULL;
p->old_hend = NULL;
@@ -7794,15 +7637,15 @@ void erts_init_empty_process(Process *p)
p->mbuf = NULL;
p->mbuf_sz = 0;
p->psd = NULL;
- p->monitors = NULL;
- p->nlinks = NULL; /* List of links */
+ ERTS_P_MONITORS(p) = NULL;
+ ERTS_P_LINKS(p) = NULL; /* List of links */
p->nodes_monitors = NULL;
p->suspend_monitors = NULL;
p->msg.first = NULL;
p->msg.last = &p->msg.first;
p->msg.save = &p->msg.first;
p->msg.len = 0;
- p->bif_timers = NULL;
+ p->u.bif_timers = NULL;
p->dictionary = NULL;
p->seq_trace_clock = 0;
p->seq_trace_lastcnt = 0;
@@ -7829,8 +7672,8 @@ void erts_init_empty_process(Process *p)
p->def_arg_reg[5] = 0;
p->parent = NIL;
- p->started.tv_sec = 0;
- p->started.tv_usec = 0;
+ p->approx_started = 0;
+ p->common.u.alive.started_interval = 0;
#ifdef HIPE
hipe_init_process(&p->hipe);
@@ -7844,12 +7687,10 @@ void erts_init_empty_process(Process *p)
p->last_old_htop = NULL;
#endif
+ erts_smp_atomic32_init_nob(&p->state, (erts_aint32_t) PRIORITY_NORMAL);
#ifdef ERTS_SMP
p->scheduler_data = NULL;
- p->is_exiting = 0;
- p->status_flags = 0;
- p->runq_flags = 0;
p->msg_inq.first = NULL;
p->msg_inq.last = &p->msg_inq.first;
p->msg_inq.len = 0;
@@ -7859,7 +7700,7 @@ void erts_init_empty_process(Process *p)
p->pending_exit.bp = NULL;
erts_proc_lock_init(p);
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
- p->run_queue = ERTS_RUNQ_IX(0);
+ RUNQ_SET_RQ(&p->run_queue, ERTS_RUNQ_IX(0));
#endif
#if !defined(NO_FPE_SIGNALS) || defined(HIPE)
@@ -7878,25 +7719,25 @@ erts_debug_verify_clean_empty_process(Process* p)
ASSERT(p->stop == NULL);
ASSERT(p->hend == NULL);
ASSERT(p->heap == NULL);
- ASSERT(p->id == ERTS_INVALID_PID);
- ASSERT(p->tracer_proc == NIL);
- ASSERT(p->trace_flags == F_INITIAL_TRACE_FLAGS);
+ ASSERT(p->common.id == ERTS_INVALID_PID);
+ ASSERT(ERTS_TRACER_PROC(p) == NIL);
+ ASSERT(ERTS_TRACE_FLAGS(p) == F_INITIAL_TRACE_FLAGS);
ASSERT(p->group_leader == ERTS_INVALID_PID);
ASSERT(p->next == NULL);
- ASSERT(p->reg == NULL);
+ ASSERT(p->common.u.alive.reg == NULL);
ASSERT(p->heap_sz == 0);
ASSERT(p->high_water == NULL);
ASSERT(p->old_hend == NULL);
ASSERT(p->old_htop == NULL);
ASSERT(p->old_heap == NULL);
- ASSERT(p->monitors == NULL);
- ASSERT(p->nlinks == NULL);
+ ASSERT(ERTS_P_MONITORS(p) == NULL);
+ ASSERT(ERTS_P_LINKS(p) == NULL);
ASSERT(p->nodes_monitors == NULL);
ASSERT(p->suspend_monitors == NULL);
ASSERT(p->msg.first == NULL);
ASSERT(p->msg.len == 0);
- ASSERT(p->bif_timers == NULL);
+ ASSERT(p->u.bif_timers == NULL);
ASSERT(p->dictionary == NULL);
ASSERT(p->catches == 0);
ASSERT(p->cp == NULL);
@@ -7937,8 +7778,8 @@ erts_cleanup_empty_process(Process* p)
free_message_buffer(p->mbuf);
p->mbuf = NULL;
}
-#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
- erts_lcnt_proc_lock_destroy(p);
+#ifdef ERTS_SMP
+ erts_proc_lock_fin(p);
#endif
#ifdef DEBUG
erts_debug_verify_clean_empty_process(p);
@@ -7953,7 +7794,7 @@ delete_process(Process* p)
{
ErlMessage* mp;
- VERBOSE(DEBUG_PROCESSES, ("Removing process: %T\n",p->id));
+ VERBOSE(DEBUG_PROCESSES, ("Removing process: %T\n",p->common.id));
/* Cleanup psd */
@@ -8027,34 +7868,40 @@ delete_process(Process* p)
mp = next_mp;
}
- ASSERT(!p->monitors);
- ASSERT(!p->nlinks);
ASSERT(!p->nodes_monitors);
ASSERT(!p->suspend_monitors);
p->fvalue = NIL;
}
+static ERTS_INLINE erts_aint32_t
+set_proc_exiting_state(Process *p, erts_aint32_t state)
+{
+ erts_aint32_t a, n, e;
+ a = state;
+ while (1) {
+ n = e = a;
+ n &= ~(ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT);
+ n |= ERTS_PSFLG_EXITING|ERTS_PSFLG_ACTIVE;
+ if (!(a & (ERTS_PSFLG_IN_RUNQ|ERTS_PSFLG_RUNNING)))
+ n |= ERTS_PSFLG_IN_RUNQ;
+ a = erts_smp_atomic32_cmpxchg_relb(&p->state, n, e);
+ if (a == e)
+ break;
+ }
+ return a;
+}
+
static ERTS_INLINE void
-set_proc_exiting(Process *p, Eterm reason, ErlHeapFragment *bp)
+set_proc_exiting(Process *p,
+ erts_aint32_t state,
+ Eterm reason,
+ ErlHeapFragment *bp)
{
-#ifdef ERTS_SMP
- erts_pix_lock_t *pix_lock = ERTS_PID2PIXLOCK(p->id);
ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(p) == ERTS_PROC_LOCKS_ALL);
- /*
- * You are required to have all proc locks and the pix lock when going
- * to status P_EXITING. This makes it is enough to take any lock when
- * looking up a process (pid2proc()) to prevent the looked up process
- * from exiting until the lock has been released.
- */
- erts_pix_lock(pix_lock);
- p->is_exiting = 1;
-#endif
- p->status = P_EXITING;
-#ifdef ERTS_SMP
- erts_pix_unlock(pix_lock);
-#endif
+ state = set_proc_exiting_state(p, state);
+
p->fvalue = reason;
if (bp)
erts_link_mbuf_to_proc(p, bp);
@@ -8067,6 +7914,14 @@ set_proc_exiting(Process *p, Eterm reason, ErlHeapFragment *bp)
KILL_CATCHES(p);
cancel_timer(p);
p->i = (BeamInstr *) beam_exit;
+
+ if (erts_system_profile_flags.runnable_procs
+ && !(state & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED))) {
+ profile_runnable_proc(p, am_active);
+ }
+
+ if (!(state & (ERTS_PSFLG_IN_RUNQ|ERTS_PSFLG_RUNNING)))
+ add2runq(p, state);
}
@@ -8079,8 +7934,8 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks)
ASSERT(is_value(c_p->pending_exit.reason));
ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(c_p) == locks);
ERTS_SMP_LC_ASSERT(locks & ERTS_PROC_LOCK_MAIN);
- ERTS_SMP_LC_ASSERT(c_p->status != P_EXITING);
- ERTS_SMP_LC_ASSERT(c_p->status != P_FREE);
+ ERTS_SMP_LC_ASSERT(!((ERTS_PSFLG_EXITING|ERTS_PSFLG_FREE)
+ & erts_smp_atomic32_read_nob(&c_p->state)));
/* Ensure that all locks on c_p are locked before proceeding... */
if (locks == ERTS_PROC_LOCKS_ALL)
@@ -8093,7 +7948,10 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks)
}
}
- set_proc_exiting(c_p, c_p->pending_exit.reason, c_p->pending_exit.bp);
+ set_proc_exiting(c_p,
+ erts_smp_atomic32_read_acqb(&c_p->state),
+ c_p->pending_exit.reason,
+ c_p->pending_exit.bp);
c_p->pending_exit.reason = THE_NON_VALUE;
c_p->pending_exit.bp = NULL;
@@ -8104,16 +7962,19 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks)
static void
handle_pending_exiters(ErtsProcList *pnd_xtrs)
{
+ /* 'list' is expected to have been fetched (i.e. not a ring anymore) */
ErtsProcList *plp = pnd_xtrs;
- ErtsProcList *free_plp;
+
while (plp) {
+ ErtsProcList *free_plp;
Process *p = erts_pid2proc(NULL, 0, plp->pid, ERTS_PROC_LOCKS_ALL);
if (p) {
- if (proclist_same(plp, p)
- && !(p->status_flags & ERTS_PROC_SFLG_RUNNING)) {
- ASSERT(p->status_flags & ERTS_PROC_SFLG_INRUNQ);
- ASSERT(ERTS_PROC_PENDING_EXIT(p));
- erts_handle_pending_exit(p, ERTS_PROC_LOCKS_ALL);
+ if (erts_proclist_same(plp, p)) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & ERTS_PSFLG_RUNNING)) {
+ ASSERT(state & ERTS_PSFLG_PENDING_EXIT);
+ erts_handle_pending_exit(p, ERTS_PROC_LOCKS_ALL);
+ }
}
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
}
@@ -8137,11 +7998,10 @@ save_pending_exiter(Process *p)
erts_smp_runq_lock(rq);
- plp->next = rq->procs.pending_exiters;
- rq->procs.pending_exiters = plp;
+ erts_proclist_store_last(&rq->procs.pending_exiters, plp);
erts_smp_runq_unlock(rq);
-
+ wake_scheduler(rq, 1);
}
#endif
@@ -8185,7 +8045,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp,
hp = bp->mem;
mess = copy_struct(exit_term, term_size, &hp, &bp->off_heap);
/* the trace token must in this case be updated by the caller */
- seq_trace_output(token, mess, SEQ_TRACE_SEND, to->id, NULL);
+ seq_trace_output(token, mess, SEQ_TRACE_SEND, to->common.id, NULL);
temp_token = copy_struct(token, sz_token, &hp, &bp->off_heap);
erts_queue_message(to, to_locksp, bp, mess, temp_token
#ifdef USE_VM_PROBES
@@ -8203,7 +8063,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp,
* SMP emulator). When the signal is received the receiver receives an
* 'EXIT' message if it is trapping exits; otherwise, it will either
* ignore the signal if the exit reason is normal, or go into an
- * exiting state (status P_EXITING). When a process has gone into the
+ * exiting state (ERTS_PSFLG_EXITING). When a process has gone into the
* exiting state it will not execute any more Erlang code, but it might
* take a while before it actually exits. The exit signal is being
* received when the 'EXIT' message is put in the message queue, the
@@ -8276,6 +8136,7 @@ send_exit_signal(Process *c_p, /* current process if and only
Uint32 flags /* flags */
)
{
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state);
Eterm rsn = reason == am_kill ? am_killed : reason;
ERTS_SMP_LC_ASSERT(*rp_locks == erts_proc_lc_my_proc_locks(rp));
@@ -8297,7 +8158,7 @@ send_exit_signal(Process *c_p, /* current process if and only
}
#endif
- if (ERTS_PROC_IS_TRAPPING_EXITS(rp)
+ if ((state & ERTS_PSFLG_TRAP_EXIT)
&& (reason != am_kill || (flags & ERTS_XSIG_FLG_IGN_KILL))) {
if (is_not_nil(token)
#ifdef USE_VM_PROBES
@@ -8313,9 +8174,7 @@ send_exit_signal(Process *c_p, /* current process if and only
}
else if (reason != am_normal || (flags & ERTS_XSIG_FLG_NO_IGN_NORMAL)) {
#ifdef ERTS_SMP
- if (!ERTS_PROC_PENDING_EXIT(rp) && !rp->is_exiting) {
- ASSERT(rp->status != P_EXITING);
- ASSERT(rp->status != P_FREE);
+ if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))) {
ASSERT(!rp->pending_exit.bp);
if (rp == c_p && (*rp_locks & ERTS_PROC_LOCK_MAIN)) {
@@ -8331,9 +8190,9 @@ send_exit_signal(Process *c_p, /* current process if and only
}
*rp_locks = ERTS_PROC_LOCKS_ALL;
}
- set_proc_exiting(c_p, rsn, NULL);
+ set_proc_exiting(c_p, state, rsn, NULL);
}
- else if (!(rp->status_flags & ERTS_PROC_SFLG_RUNNING)) {
+ else if (!(state & ERTS_PSFLG_RUNNING)) {
/* Process not running ... */
ErtsProcLocks need_locks = ~(*rp_locks) & ERTS_PROC_LOCKS_ALL;
if (need_locks
@@ -8350,6 +8209,7 @@ send_exit_signal(Process *c_p, /* current process if and only
/* ...and we have all locks on it... */
*rp_locks = ERTS_PROC_LOCKS_ALL;
set_proc_exiting(rp,
+ state,
(is_immed(rsn)
? rsn
: copy_object(rsn, rp)),
@@ -8379,11 +8239,9 @@ send_exit_signal(Process *c_p, /* current process if and only
&bp->off_heap);
rp->pending_exit.bp = bp;
}
- ASSERT(ERTS_PROC_PENDING_EXIT(rp));
+ erts_smp_atomic32_read_bor_relb(&rp->state,
+ ERTS_PSFLG_PENDING_EXIT);
}
- if (!(rp->status_flags
- & (ERTS_PROC_SFLG_INRUNQ|ERTS_PROC_SFLG_RUNNING)))
- erts_add_to_runq(rp);
}
/* else:
*
@@ -8395,17 +8253,14 @@ send_exit_signal(Process *c_p, /* current process if and only
* exit or by itself before seeing the pending exit.
*/
#else /* !ERTS_SMP */
- if (c_p == rp) {
- rp->status = P_EXITING;
- c_p->fvalue = rsn;
- }
- else if (rp->status != P_EXITING) { /* No recursive process exits /PaN */
- Eterm old_status = rp->status;
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state);
+ if (!(state & ERTS_PSFLG_EXITING)) {
set_proc_exiting(rp,
- is_immed(rsn) ? rsn : copy_object(rsn, rp),
+ state,
+ (is_immed(rsn) || c_p == rp
+ ? rsn
+ : copy_object(rsn, rp)),
NULL);
- if (old_status != P_RUNABLE && old_status != P_RUNNING)
- erts_add_to_runq(rp);
}
#endif
return -1; /* Receiver will exit */
@@ -8481,7 +8336,7 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
if (!rp) {
goto done;
}
- rmon = erts_remove_monitor(&(rp->monitors),mon->ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
if (rmon == NULL) {
goto done;
@@ -8516,7 +8371,7 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
ASSERT(mon->type == MON_TARGET);
ASSERT(is_pid(mon->pid) || is_internal_port(mon->pid));
if (is_internal_port(mon->pid)) {
- Port *prt = erts_id2port(mon->pid, NULL, 0);
+ Port *prt = erts_id2port(mon->pid);
if (prt == NULL) {
goto done;
}
@@ -8532,13 +8387,13 @@ static void doit_exit_monitor(ErtsMonitor *mon, void *vpcontext)
goto done;
}
UseTmpHeapNoproc(3);
- rmon = erts_remove_monitor(&(rp->monitors),mon->ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref);
if (rmon) {
erts_destroy_monitor(rmon);
watched = (is_atom(mon->name)
? TUPLE2(lhp, mon->name,
erts_this_dist_entry->sysname)
- : pcontext->p->id);
+ : pcontext->p->common.id);
erts_queue_monitor_message(rp, &rp_locks, mon->ref, am_process,
watched, pcontext->reason);
}
@@ -8603,21 +8458,22 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext)
switch(lnk->type) {
case LINK_PID:
if(is_internal_port(item)) {
- Port *prt = erts_id2port(item, NULL, 0);
- if (prt) {
- rlnk = erts_remove_link(&prt->nlinks, p->id);
- if (rlnk)
- erts_destroy_link(rlnk);
- erts_do_exit_port(prt, p->id, reason);
- erts_port_release(prt);
- }
+ Port *prt = erts_port_lookup(item, ERTS_PORT_SFLGS_INVALID_LOOKUP);
+ if (prt)
+ erts_port_exit(NULL,
+ (ERTS_PORT_SIG_FLG_FORCE_SCHED
+ | ERTS_PORT_SIG_FLG_BROKEN_LINK),
+ prt,
+ p->common.id,
+ reason,
+ NULL);
}
else if(is_external_port(item)) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
erts_dsprintf(dsbufp,
"Erroneous link between %T and external port %T "
"found\n",
- p->id,
+ p->common.id,
item);
erts_send_error_to_logger_nogl(dsbufp);
ASSERT(0); /* It isn't possible to setup such a link... */
@@ -8627,14 +8483,14 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext)
| ERTS_PROC_LOCKS_XSIG_SEND);
rp = erts_pid2proc(NULL, 0, item, rp_locks);
if (rp) {
- rlnk = erts_remove_link(&(rp->nlinks), p->id);
+ rlnk = erts_remove_link(&ERTS_P_LINKS(rp), p->common.id);
/* If rlnk == NULL, we got unlinked while exiting,
i.e., do nothing... */
if (rlnk) {
int xres;
erts_destroy_link(rlnk);
xres = send_exit_signal(NULL,
- p->id,
+ p->common.id,
rp,
&rp_locks,
reason,
@@ -8646,7 +8502,7 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext)
if (xres >= 0 && IS_TRACED_FL(rp, F_TRACE_PROCS)) {
/* We didn't exit the process and it is traced */
if (IS_TRACED_FL(rp, F_TRACE_PROCS)) {
- trace_proc(p, rp, am_getting_unlinked, p->id);
+ trace_proc(p, rp, am_getting_unlinked, p->common.id);
}
}
}
@@ -8660,12 +8516,12 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext)
ErtsDSigData dsd;
int code;
ErtsDistLinkData dld;
- erts_remove_dist_link(&dld, p->id, item, dep);
+ erts_remove_dist_link(&dld, p->common.id, item, dep);
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
code = erts_dsig_prepare(&dsd, dep, p, ERTS_DSP_NO_LOCK, 0);
if (code == ERTS_DSIG_PREP_CONNECTED) {
- code = erts_dsig_send_exit_tt(&dsd, p->id, item, reason,
- SEQ_TRACE_TOKEN(p));
+ code = erts_dsig_send_exit_tt(&dsd, p->common.id, item,
+ reason, SEQ_TRACE_TOKEN(p));
ASSERT(code == ERTS_DSIG_SEND_OK);
}
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
@@ -8680,7 +8536,7 @@ static void doit_exit_link(ErtsLink *lnk, void *vpcontext)
/* dist entries have node links in a separate structure to
avoid confusion */
erts_smp_de_links_lock(dep);
- rlnk = erts_remove_link(&(dep->node_links), p->id);
+ rlnk = erts_remove_link(&(dep->node_links), p->common.id);
erts_smp_de_links_unlock(dep);
if (rlnk)
erts_destroy_link(rlnk);
@@ -8708,22 +8564,14 @@ resume_suspend_monitor(ErtsSuspendMonitor *smon, void *vc_p)
erts_destroy_suspend_monitor(smon);
}
-static void
-continue_exit_process(Process *p
-#ifdef ERTS_SMP
- , erts_pix_lock_t *pix_lock
-#endif
- );
-
/* this function fishishes a process and propagates exit messages - called
by process_main when a process dies */
void
erts_do_exit_process(Process* p, Eterm reason)
{
#ifdef ERTS_SMP
- erts_pix_lock_t *pix_lock = ERTS_PID2PIXLOCK(p->id);
+ erts_aint32_t state;
#endif
-
p->arity = 0; /* No live registers */
p->fvalue = reason;
@@ -8741,27 +8589,17 @@ erts_do_exit_process(Process* p, Eterm reason)
#ifdef ERTS_SMP
ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
/* By locking all locks (main lock is already locked) when going
- to status P_EXITING, it is enough to take any lock when
+ to exiting state (ERTS_PSFLG_EXITING), it is enough to take any lock when
looking up a process (erts_pid2proc()) to prevent the looked up
process from exiting until the lock has been released. */
erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
#endif
-
- if (erts_system_profile_flags.runnable_procs && (p->status != P_WAITING)) {
- profile_runnable_proc(p, am_inactive);
- }
-
-#ifdef ERTS_SMP
- erts_pix_lock(pix_lock);
- p->is_exiting = 1;
-#endif
-
- p->status = P_EXITING;
-
-#ifdef ERTS_SMP
- erts_pix_unlock(pix_lock);
- if (ERTS_PROC_PENDING_EXIT(p)) {
+#ifndef ERTS_SMP
+ set_proc_exiting_state(p, erts_smp_atomic32_read_nob(&p->state));
+#else
+ state = set_proc_exiting_state(p, erts_smp_atomic32_read_nob(&p->state));
+ if (state & ERTS_PSFLG_PENDING_EXIT) {
/* Process exited before pending exit was received... */
p->pending_exit.reason = THE_NON_VALUE;
if (p->pending_exit.bp) {
@@ -8783,46 +8621,30 @@ erts_do_exit_process(Process* p, Eterm reason)
trace_proc(p, p, am_exit, reason);
}
- erts_trace_check_exiting(p->id);
+ erts_trace_check_exiting(p->common.id);
- ASSERT((p->trace_flags & F_INITIAL_TRACE_FLAGS) == F_INITIAL_TRACE_FLAGS);
+ ASSERT((ERTS_TRACE_FLAGS(p) & F_INITIAL_TRACE_FLAGS)
+ == F_INITIAL_TRACE_FLAGS);
cancel_timer(p); /* Always cancel timer just in case */
- /*
- * The timer of this process can *not* be used anymore. The field used
- * for the timer is now used for misc exiting data.
- */
- p->u.exit_data = NULL;
-
- if (p->bif_timers)
+ if (p->u.bif_timers)
erts_cancel_bif_timers(p, ERTS_PROC_LOCKS_ALL);
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
-#ifdef ERTS_SMP
- continue_exit_process(p, pix_lock);
-#else
- continue_exit_process(p);
-#endif
-}
+ /*
+ * The p->u.bif_timers of this process can *not* be used anymore;
+ * will be overwritten by misc termination data.
+ */
+ p->u.terminate = NULL;
-void
-erts_continue_exit_process(Process *c_p)
-{
-#ifdef ERTS_SMP
- continue_exit_process(c_p, ERTS_PID2PIXLOCK(c_p->id));
-#else
- continue_exit_process(c_p);
-#endif
+
+ erts_continue_exit_process(p);
}
-static void
-continue_exit_process(Process *p
-#ifdef ERTS_SMP
- , erts_pix_lock_t *pix_lock
-#endif
- )
+void
+erts_continue_exit_process(Process *p)
{
ErtsLink* lnk;
ErtsMonitor *mon;
@@ -8838,11 +8660,7 @@ continue_exit_process(Process *p
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(p));
-#ifdef DEBUG
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- ASSERT(p->status == P_EXITING);
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
-#endif
+ ASSERT(ERTS_PROC_IS_EXITING(p));
#ifdef ERTS_SMP
if (p->flags & F_HAVE_BLCKD_MSCHED) {
@@ -8893,9 +8711,9 @@ continue_exit_process(Process *p
* The registered name *should* be the last "erlang resource" to
* cleanup.
*/
- if (p->reg) {
+ if (p->common.u.alive.reg) {
(void) erts_unregister_name(p, ERTS_PROC_LOCK_MAIN, NULL, THE_NON_VALUE);
- ASSERT(!p->reg);
+ ASSERT(!p->common.u.alive.reg);
}
erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
@@ -8909,49 +8727,33 @@ continue_exit_process(Process *p
yield_allowed = 0;
#endif
+ /*
+ * Note! The monitor and link fields will be overwritten
+ * by erts_ptab_delete_element() below.
+ */
+ mon = ERTS_P_MONITORS(p);
+ lnk = ERTS_P_LINKS(p);
+
{
- int pix;
/* Do *not* use erts_get_runq_proc() */
ErtsRunQueue *rq;
rq = erts_get_runq_current(ERTS_GET_SCHEDULER_DATA_FROM_PROC(p));
- ASSERT(internal_pid_index(p->id) < erts_max_processes);
- pix = internal_pid_index(p->id);
-
- erts_smp_mtx_lock(&proc_tab_mtx);
erts_smp_runq_lock(rq);
#ifdef ERTS_SMP
- erts_pix_lock(pix_lock);
-
ASSERT(p->scheduler_data);
ASSERT(p->scheduler_data->current_process == p);
ASSERT(p->scheduler_data->free_process == NULL);
p->scheduler_data->current_process = NULL;
p->scheduler_data->free_process = p;
- p->status_flags = 0;
#endif
- process_tab[pix] = NULL; /* Time of death! */
- ASSERT(erts_smp_atomic32_read_nob(&process_count) > 0);
- erts_smp_atomic32_dec_nob(&process_count);
-#ifdef ERTS_SMP
- erts_pix_unlock(pix_lock);
-#endif
- erts_smp_runq_unlock(rq);
-
- if (p_next < 0) {
- if (p_last >= p_next) {
- p_serial++;
- p_serial &= p_serial_mask;
- }
- p_next = pix;
- }
-
- ERTS_MAYBE_SAVE_TERMINATING_PROCESS(p);
+ /* Time of death! */
+ erts_ptab_delete_element(&erts_proc, &p->common);
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ erts_smp_runq_unlock(rq);
}
/*
@@ -8961,12 +8763,20 @@ continue_exit_process(Process *p
* when the monitors and/or links hit.
*/
- mon = p->monitors;
- p->monitors = NULL; /* to avoid recursive deletion during traversal */
+ {
+ /* Inactivate and notify free */
+ erts_aint32_t n, e, a = erts_smp_atomic32_read_nob(&p->state);
+ while (1) {
+ n = e = a;
+ ASSERT(a & ERTS_PSFLG_EXITING);
+ n |= ERTS_PSFLG_FREE;
+ n &= ~ERTS_PSFLG_ACTIVE;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ if (a == e)
+ break;
+ }
+ }
- lnk = p->nlinks;
- p->nlinks = NULL;
- p->status = P_FREE;
dep = ((p->flags & F_DISTRIBUTION)
? ERTS_PROC_SET_DIST_ENTRY(p, ERTS_PROC_LOCKS_ALL, NULL)
: NULL);
@@ -8996,7 +8806,7 @@ continue_exit_process(Process *p
UseTmpHeap(4,p);
hp = &tmp_heap[0];
- exit_tuple = TUPLE3(hp, am_EXIT, p->id, reason);
+ exit_tuple = TUPLE3(hp, am_EXIT, p->common.id, reason);
exit_tuple_sz = size_object(exit_tuple);
@@ -9021,8 +8831,10 @@ continue_exit_process(Process *p
delete_process(p);
+#ifdef ERTS_SMP
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
+#endif
return;
@@ -9035,8 +8847,6 @@ continue_exit_process(Process *p
ERTS_SMP_LC_ASSERT(curr_locks == erts_proc_lc_my_proc_locks(p));
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & curr_locks);
- ASSERT(p->status == P_EXITING);
-
p->i = (BeamInstr *) beam_continue_exit;
if (!(curr_locks & ERTS_PROC_LOCK_STATUS)) {
@@ -9044,8 +8854,6 @@ continue_exit_process(Process *p
curr_locks |= ERTS_PROC_LOCK_STATUS;
}
- erts_add_to_runq(p);
-
if (curr_locks != ERTS_PROC_LOCK_MAIN)
erts_smp_proc_unlock(p, ~ERTS_PROC_LOCK_MAIN & curr_locks);
@@ -9057,33 +8865,15 @@ continue_exit_process(Process *p
static void
timeout_proc(Process* p)
{
+ erts_aint32_t state;
BeamInstr** pi = (BeamInstr **) p->def_arg_reg;
p->i = *pi;
p->flags |= F_TIMO;
p->flags &= ~F_INSLPQUEUE;
- switch (p->status) {
- case P_GARBING:
- switch (p->gcstatus) {
- case P_SUSPENDED:
- goto suspended;
- case P_WAITING:
- goto waiting;
- default:
- break;
- }
- break;
- case P_WAITING:
- waiting:
- erts_add_to_runq(p);
- break;
- case P_SUSPENDED:
- suspended:
- p->rstatus = P_RUNABLE; /* MUST set resume status to runnable */
- break;
- default:
- break;
- }
+ state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & ERTS_PSFLG_ACTIVE))
+ schedule_process(p, state, 0);
}
@@ -9093,9 +8883,9 @@ cancel_timer(Process* p)
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p));
p->flags &= ~(F_INSLPQUEUE|F_TIMO);
#ifdef ERTS_SMP
- erts_cancel_smp_ptimer(p->u.ptimer);
+ erts_cancel_smp_ptimer(p->common.u.alive.ptimer);
#else
- erts_cancel_timer(&p->u.tm);
+ erts_cancel_timer(&p->common.u.alive.tm);
#endif
}
@@ -9116,12 +8906,12 @@ set_timer(Process* p, Uint timeout)
p->flags &= ~F_TIMO;
#ifdef ERTS_SMP
- erts_create_smp_ptimer(&p->u.ptimer,
- p->id,
+ erts_create_smp_ptimer(&p->common.u.alive.ptimer,
+ p->common.id,
(ErlTimeoutProc) timeout_proc,
timeout);
#else
- erts_set_timer(&p->u.tm,
+ erts_set_timer(&p->common.u.alive.tm,
(ErlTimeoutProc) timeout_proc,
NULL,
(void*) p,
@@ -9139,7 +8929,7 @@ erts_stack_dump(int to, void *to_arg, Process *p)
Eterm* sp;
int yreg = -1;
- if (p->trace_flags & F_SENSITIVE) {
+ if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE) {
return;
}
erts_program_counter_info(to, to_arg, p);
@@ -9151,6 +8941,7 @@ erts_stack_dump(int to, void *to_arg, Process *p)
void
erts_program_counter_info(int to, void *to_arg, Process *p)
{
+ erts_aint32_t state;
int i;
erts_print(to, to_arg, "Program counter: %p (", p->i);
@@ -9159,7 +8950,8 @@ erts_program_counter_info(int to, void *to_arg, Process *p)
erts_print(to, to_arg, "CP: %p (", p->cp);
print_function_from_pc(to, to_arg, p->cp);
erts_print(to, to_arg, ")\n");
- if (!((p->status == P_RUNNING) || (p->status == P_GARBING))) {
+ state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_GC))) {
erts_print(to, to_arg, "arity = %d\n",p->arity);
if (!ERTS_IS_CRASH_DUMPING) {
/*
@@ -9205,7 +8997,7 @@ stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg)
erts_print(to, to_arg, "\n%p ", sp);
} else {
char sbuf[16];
- sprintf(sbuf, "y(%d)", yreg);
+ erts_snprintf(sbuf, sizeof(sbuf), "y(%d)", yreg);
erts_print(to, to_arg, "%-8s ", sbuf);
yreg++;
}
@@ -9225,1085 +9017,6 @@ stack_element_dump(int to, void *to_arg, Process* p, Eterm* sp, int yreg)
return yreg;
}
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
- * The processes/0 BIF implementation. *
-\* */
-
-
-#define ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED 25
-#define ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE 1000
-#define ERTS_PROCESSES_BIF_MIN_START_REDS \
- (ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE \
- / ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED)
-
-#define ERTS_PROCESSES_BIF_TAB_FREE_TERM_PROC_REDS 1
-
-#define ERTS_PROCESSES_BIF_INSPECT_TERM_PROC_PER_RED 10
-
-#define ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS \
- (ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE \
- / ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED)
-
-
-#define ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED 75
-
-#define ERTS_PROCS_DBG_DO_TRACE 0
-
-#ifdef DEBUG
-# define ERTS_PROCESSES_BIF_DEBUGLEVEL 100
-#else
-# define ERTS_PROCESSES_BIF_DEBUGLEVEL 0
-#endif
-
-#define ERTS_PROCS_DBGLVL_CHK_HALLOC 1
-#define ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS 5
-#define ERTS_PROCS_DBGLVL_CHK_PIDS 10
-#define ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST 20
-#define ERTS_PROCS_DBGLVL_CHK_RESLIST 20
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL == 0
-# define ERTS_PROCS_ASSERT(EXP)
-#else
-# define ERTS_PROCS_ASSERT(EXP) \
- ((void) ((EXP) \
- ? 1 \
- : (debug_processes_assert_error(#EXP, __FILE__, __LINE__), 0)))
-#endif
-
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_HALLOC
-# define ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(PBDP, HP, SZ) \
-do { \
- ERTS_PROCS_ASSERT(!(PBDP)->debug.heap); \
- ERTS_PROCS_ASSERT(!(PBDP)->debug.heap_size); \
- (PBDP)->debug.heap = (HP); \
- (PBDP)->debug.heap_size = (SZ); \
-} while (0)
-# define ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(PBDP, HP) \
-do { \
- ERTS_PROCS_ASSERT((PBDP)->debug.heap); \
- ERTS_PROCS_ASSERT((PBDP)->debug.heap_size); \
- ERTS_PROCS_ASSERT((PBDP)->debug.heap + (PBDP)->debug.heap_size == (HP));\
- (PBDP)->debug.heap = NULL; \
- (PBDP)->debug.heap_size = 0; \
-} while (0)
-# define ERTS_PROCS_DBG_HEAP_ALLOC_INIT(PBDP) \
-do { \
- (PBDP)->debug.heap = NULL; \
- (PBDP)->debug.heap_size = 0; \
-} while (0)
-#else
-# define ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(PBDP, HP, SZ)
-# define ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(PBDP, HP)
-# define ERTS_PROCS_DBG_HEAP_ALLOC_INIT(PBDP)
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_RESLIST
-# define ERTS_PROCS_DBG_CHK_RESLIST(R) debug_processes_check_res_list((R))
-#else
-# define ERTS_PROCS_DBG_CHK_RESLIST(R)
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS
-# define ERTS_PROCS_DBG_SAVE_PIDS(PBDP) debug_processes_save_all_pids((PBDP))
-# define ERTS_PROCS_DBG_VERIFY_PIDS(PBDP) \
-do { \
- if (!(PBDP)->debug.correct_pids_verified) \
- debug_processes_verify_all_pids((PBDP)); \
-} while (0)
-# define ERTS_PROCS_DBG_CLEANUP_CHK_PIDS(PBDP) \
-do { \
- if ((PBDP)->debug.correct_pids) { \
- erts_free(ERTS_ALC_T_PROCS_PIDS, \
- (PBDP)->debug.correct_pids); \
- (PBDP)->debug.correct_pids = NULL; \
- } \
-} while(0)
-# define ERTS_PROCS_DBG_CHK_PIDS_INIT(PBDP) \
-do { \
- (PBDP)->debug.correct_pids_verified = 0; \
- (PBDP)->debug.correct_pids = NULL; \
-} while (0)
-#else
-# define ERTS_PROCS_DBG_SAVE_PIDS(PBDP)
-# define ERTS_PROCS_DBG_VERIFY_PIDS(PBDP)
-# define ERTS_PROCS_DBG_CLEANUP_CHK_PIDS(PBDP)
-# define ERTS_PROCS_DBG_CHK_PIDS_INIT(PBDP)
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
-# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, TVP) \
- debug_processes_check_found_pid((PBDP), (PID), (TVP), 1)
-# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, TVP) \
- debug_processes_check_found_pid((PBDP), (PID), (TVP), 0)
-#else
-# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, TVP)
-# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, TVP)
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
-# define ERTS_PROCS_DBG_CHK_TPLIST() \
- debug_processes_check_term_proc_list()
-# define ERTS_PROCS_DBG_CHK_FREELIST(FL) \
- debug_processes_check_term_proc_free_list(FL)
-#else
-# define ERTS_PROCS_DBG_CHK_TPLIST()
-# define ERTS_PROCS_DBG_CHK_FREELIST(FL)
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL == 0
-#if ERTS_PROCS_DBG_DO_TRACE
-# define ERTS_PROCS_DBG_INIT(P, PBDP) (PBDP)->debug.caller = (P)->id
-# else
-# define ERTS_PROCS_DBG_INIT(P, PBDP)
-# endif
-# define ERTS_PROCS_DBG_CLEANUP(PBDP)
-#else
-# define ERTS_PROCS_DBG_INIT(P, PBDP) \
-do { \
- (PBDP)->debug.caller = (P)->id; \
- ERTS_PROCS_DBG_HEAP_ALLOC_INIT((PBDP)); \
- ERTS_PROCS_DBG_CHK_PIDS_INIT((PBDP)); \
-} while (0)
-# define ERTS_PROCS_DBG_CLEANUP(PBDP) \
-do { \
- ERTS_PROCS_DBG_CLEANUP_CHK_PIDS((PBDP)); \
-} while (0)
-#endif
-
-#if ERTS_PROCS_DBG_DO_TRACE
-# define ERTS_PROCS_DBG_TRACE(PID, FUNC, WHAT) \
- erts_fprintf(stderr, "%T %s:%d:%s(): %s\n", \
- (PID), __FILE__, __LINE__, #FUNC, #WHAT)
-#else
-# define ERTS_PROCS_DBG_TRACE(PID, FUNC, WHAT)
-#endif
-
-static Uint processes_bif_tab_chunks;
-static Export processes_trap_export;
-
-typedef struct {
- SysTimeval time;
-} ErtsProcessesBifChunkInfo;
-
-typedef enum {
- INITIALIZING,
- INSPECTING_TABLE,
- INSPECTING_TERMINATED_PROCESSES,
- BUILDING_RESULT,
- RETURN_RESULT
-} ErtsProcessesBifState;
-
-typedef struct {
- ErtsProcessesBifState state;
- Eterm caller;
- ErtsProcessesBifChunkInfo *chunk;
- int tix;
- int pid_ix;
- int pid_sz;
- Eterm *pid;
- ErtsTermProcElement *bif_invocation; /* Only used when > 1 chunk */
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL != 0 || ERTS_PROCS_DBG_DO_TRACE
- struct {
- Eterm caller;
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- SysTimeval *pid_started;
-#endif
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_HALLOC
- Eterm *heap;
- Uint heap_size;
-#endif
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS
- int correct_pids_verified;
- Eterm *correct_pids;
-#endif
- } debug;
-#endif
-
-} ErtsProcessesBifData;
-
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL != 0
-static void debug_processes_assert_error(char* expr, char* file, int line);
-#endif
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_RESLIST
-static void debug_processes_check_res_list(Eterm list);
-#endif
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS
-static void debug_processes_save_all_pids(ErtsProcessesBifData *pbdp);
-static void debug_processes_verify_all_pids(ErtsProcessesBifData *pbdp);
-#endif
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
-static void debug_processes_check_found_pid(ErtsProcessesBifData *pbdp,
- Eterm pid,
- SysTimeval *started,
- int pid_should_be_found);
-#endif
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
-static SysTimeval debug_tv_start;
-static void debug_processes_check_term_proc_list(void);
-static void debug_processes_check_term_proc_free_list(ErtsTermProcElement *tpep);
-#endif
-
-static void
-save_terminating_process(Process *p)
-{
- ErtsTermProcElement *tpep = erts_alloc(ERTS_ALC_T_PROCS_TPROC_EL,
- sizeof(ErtsTermProcElement));
- ERTS_PROCS_ASSERT(saved_term_procs.start && saved_term_procs.end);
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx));
-
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- tpep->prev = saved_term_procs.end;
- tpep->next = NULL;
- tpep->ix = internal_pid_index(p->id);
- tpep->u.process.pid = p->id;
- tpep->u.process.spawned = p->started;
- erts_get_emu_time(&tpep->u.process.exited);
-
- saved_term_procs.end->next = tpep;
- saved_term_procs.end = tpep;
-
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- ERTS_PROCS_ASSERT((tpep->prev->ix >= 0
- ? erts_cmp_timeval(&tpep->u.process.exited,
- &tpep->prev->u.process.exited)
- : erts_cmp_timeval(&tpep->u.process.exited,
- &tpep->prev->u.bif_invocation.time)) > 0);
-}
-
-static void
-cleanup_processes_bif_data(Binary *bp)
-{
- ErtsProcessesBifData *pbdp = ERTS_MAGIC_BIN_DATA(bp);
-
- ERTS_PROCS_DBG_TRACE(pbdp->debug.caller, cleanup_processes_bif_data, call);
-
- if (pbdp->state != INITIALIZING) {
-
- if (pbdp->chunk) {
- erts_free(ERTS_ALC_T_PROCS_CNKINF, pbdp->chunk);
- pbdp->chunk = NULL;
- }
- if (pbdp->pid) {
- erts_free(ERTS_ALC_T_PROCS_PIDS, pbdp->pid);
- pbdp->pid = NULL;
- }
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- if (pbdp->debug.pid_started) {
- erts_free(ERTS_ALC_T_PROCS_PIDS, pbdp->debug.pid_started);
- pbdp->debug.pid_started = NULL;
- }
-#endif
-
- if (pbdp->bif_invocation) {
- ErtsTermProcElement *tpep;
-
- erts_smp_mtx_lock(&proc_tab_mtx);
-
- ERTS_PROCS_DBG_TRACE(pbdp->debug.caller,
- cleanup_processes_bif_data,
- term_proc_cleanup);
-
- tpep = pbdp->bif_invocation;
- pbdp->bif_invocation = NULL;
-
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- if (tpep->prev) {
- /*
- * Only remove this bif invokation when we
- * have preceding invokations.
- */
- tpep->prev->next = tpep->next;
- if (tpep->next)
- tpep->next->prev = tpep->prev;
- else {
- /*
- * At the time of writing this branch cannot be
- * reached. I don't want to remove this code though
- * since it may be possible to reach this line
- * in the future if the cleanup order in
- * erts_do_exit_process() is changed. The ASSERT(0)
- * is only here to make us aware that the reorder
- * has happened. /rickard
- */
- ASSERT(0);
- saved_term_procs.end = tpep->prev;
- }
- erts_free(ERTS_ALC_T_PROCS_TPROC_EL, tpep);
- }
- else {
- /*
- * Free all elements until next bif invokation
- * is found.
- */
- ERTS_PROCS_ASSERT(saved_term_procs.start == tpep);
- do {
- ErtsTermProcElement *ftpep = tpep;
- tpep = tpep->next;
- erts_free(ERTS_ALC_T_PROCS_TPROC_EL, ftpep);
- } while (tpep && tpep->ix >= 0);
- saved_term_procs.start = tpep;
- if (tpep)
- tpep->prev = NULL;
- else
- saved_term_procs.end = NULL;
- }
-
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- erts_smp_mtx_unlock(&proc_tab_mtx);
-
- }
- }
-
- ERTS_PROCS_DBG_TRACE(pbdp->debug.caller,
- cleanup_processes_bif_data,
- return);
- ERTS_PROCS_DBG_CLEANUP(pbdp);
-}
-
-static int
-processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
-{
- ErtsProcessesBifData *pbdp = ERTS_MAGIC_BIN_DATA(mbp);
- int have_reds;
- int reds;
- int locked = 0;
-
- do {
- switch (pbdp->state) {
- case INITIALIZING:
- pbdp->chunk = erts_alloc(ERTS_ALC_T_PROCS_CNKINF,
- (sizeof(ErtsProcessesBifChunkInfo)
- * processes_bif_tab_chunks));
- pbdp->tix = 0;
- pbdp->pid_ix = 0;
-
- erts_smp_mtx_lock(&proc_tab_mtx);
- locked = 1;
-
- ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, init);
-
- pbdp->pid_sz = erts_process_count();
- pbdp->pid = erts_alloc(ERTS_ALC_T_PROCS_PIDS,
- sizeof(Eterm)*pbdp->pid_sz);
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- pbdp->debug.pid_started = erts_alloc(ERTS_ALC_T_PROCS_PIDS,
- sizeof(SysTimeval)*pbdp->pid_sz);
-#endif
-
- ERTS_PROCS_DBG_SAVE_PIDS(pbdp);
-
- if (processes_bif_tab_chunks == 1)
- pbdp->bif_invocation = NULL;
- else {
- /*
- * We will have to access the table multiple times
- * releasing the table lock in between chunks.
- */
- pbdp->bif_invocation = erts_alloc(ERTS_ALC_T_PROCS_TPROC_EL,
- sizeof(ErtsTermProcElement));
- pbdp->bif_invocation->ix = -1;
- erts_get_emu_time(&pbdp->bif_invocation->u.bif_invocation.time);
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- pbdp->bif_invocation->next = NULL;
- if (saved_term_procs.end) {
- pbdp->bif_invocation->prev = saved_term_procs.end;
- saved_term_procs.end->next = pbdp->bif_invocation;
- ERTS_PROCS_ASSERT(saved_term_procs.start);
- }
- else {
- pbdp->bif_invocation->prev = NULL;
- saved_term_procs.start = pbdp->bif_invocation;
- }
- saved_term_procs.end = pbdp->bif_invocation;
-
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- }
-
- pbdp->state = INSPECTING_TABLE;
- /* Fall through */
-
- case INSPECTING_TABLE: {
- int ix = pbdp->tix;
- int indices = ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
- int cix = ix / ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
- int end_ix = ix + indices;
- SysTimeval *invocation_timep;
-
- invocation_timep = (pbdp->bif_invocation
- ? &pbdp->bif_invocation->u.bif_invocation.time
- : NULL);
-
- ERTS_PROCS_ASSERT(is_nil(*res_accp));
- if (!locked) {
- erts_smp_mtx_lock(&proc_tab_mtx);
- locked = 1;
- }
-
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx));
- ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, insp_table);
-
- if (cix != 0)
- erts_get_emu_time(&pbdp->chunk[cix].time);
- else if (pbdp->bif_invocation)
- pbdp->chunk[0].time = *invocation_timep;
- /* else: Time is irrelevant */
-
- if (end_ix >= erts_max_processes) {
- ERTS_PROCS_ASSERT(cix+1 == processes_bif_tab_chunks);
- end_ix = erts_max_processes;
- indices = end_ix - ix;
- /* What to do when done with this chunk */
- pbdp->state = (processes_bif_tab_chunks == 1
- ? BUILDING_RESULT
- : INSPECTING_TERMINATED_PROCESSES);
- }
-
- for (; ix < end_ix; ix++) {
- Process *rp = process_tab[ix];
- if (rp
- && (!invocation_timep
- || erts_cmp_timeval(&rp->started,
- invocation_timep) < 0)) {
- ERTS_PROCS_ASSERT(is_internal_pid(rp->id));
- pbdp->pid[pbdp->pid_ix] = rp->id;
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- pbdp->debug.pid_started[pbdp->pid_ix] = rp->started;
-#endif
-
- pbdp->pid_ix++;
- ERTS_PROCS_ASSERT(pbdp->pid_ix <= pbdp->pid_sz);
- }
- }
-
- pbdp->tix = end_ix;
-
- erts_smp_mtx_unlock(&proc_tab_mtx);
- locked = 0;
-
- reds = indices/ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED;
- BUMP_REDS(p, reds);
-
- have_reds = ERTS_BIF_REDS_LEFT(p);
-
- if (have_reds && pbdp->state == INSPECTING_TABLE) {
- ix = pbdp->tix;
- indices = ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
- end_ix = ix + indices;
- if (end_ix > erts_max_processes) {
- end_ix = erts_max_processes;
- indices = end_ix - ix;
- }
-
- reds = indices/ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED;
-
- /* Pretend we have no reds left if we haven't got enough
- reductions to complete next chunk */
- if (reds > have_reds)
- have_reds = 0;
- }
-
- break;
- }
-
- case INSPECTING_TERMINATED_PROCESSES: {
- int i;
- int max_reds;
- int free_term_procs = 0;
- SysTimeval *invocation_timep;
- ErtsTermProcElement *tpep;
- ErtsTermProcElement *free_list = NULL;
-
- tpep = pbdp->bif_invocation;
- ERTS_PROCS_ASSERT(tpep);
- invocation_timep = &tpep->u.bif_invocation.time;
-
- max_reds = have_reds = ERTS_BIF_REDS_LEFT(p);
- if (max_reds > ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS)
- max_reds = ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS;
-
- reds = 0;
- erts_smp_mtx_lock(&proc_tab_mtx);
- ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, insp_term_procs);
-
- ERTS_PROCS_DBG_CHK_TPLIST();
-
- if (tpep->prev)
- tpep->prev->next = tpep->next;
- else {
- ERTS_PROCS_ASSERT(saved_term_procs.start == tpep);
- saved_term_procs.start = tpep->next;
-
- if (saved_term_procs.start && saved_term_procs.start->ix >= 0) {
- free_list = saved_term_procs.start;
- free_term_procs = 1;
- }
- }
-
- if (tpep->next)
- tpep->next->prev = tpep->prev;
- else
- saved_term_procs.end = tpep->prev;
-
- tpep = tpep->next;
-
- i = 0;
- while (reds < max_reds && tpep) {
- if (tpep->ix < 0) {
- if (free_term_procs) {
- ERTS_PROCS_ASSERT(free_list);
- ERTS_PROCS_ASSERT(tpep->prev);
-
- tpep->prev->next = NULL; /* end of free_list */
- saved_term_procs.start = tpep;
- tpep->prev = NULL;
- free_term_procs = 0;
- }
- }
- else {
- int cix = tpep->ix/ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
- SysTimeval *chunk_timep = &pbdp->chunk[cix].time;
- Eterm pid = tpep->u.process.pid;
- ERTS_PROCS_ASSERT(is_internal_pid(pid));
-
- if (erts_cmp_timeval(&tpep->u.process.spawned,
- invocation_timep) < 0) {
- if (erts_cmp_timeval(&tpep->u.process.exited,
- chunk_timep) < 0) {
- ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(pbdp,
- pid,
- &tpep->u.process.spawned);
- pbdp->pid[pbdp->pid_ix] = pid;
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- pbdp->debug.pid_started[pbdp->pid_ix] = tpep->u.process.spawned;
-#endif
- pbdp->pid_ix++;
- ERTS_PROCS_ASSERT(pbdp->pid_ix <= pbdp->pid_sz);
- }
- else {
- ERTS_PROCS_DBG_CHK_PID_FOUND(pbdp,
- pid,
- &tpep->u.process.spawned);
- }
- }
- else {
- ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(pbdp,
- pid,
- &tpep->u.process.spawned);
- }
-
- i++;
- if (i == ERTS_PROCESSES_BIF_INSPECT_TERM_PROC_PER_RED) {
- reds++;
- i = 0;
- }
- if (free_term_procs)
- reds += ERTS_PROCESSES_BIF_TAB_FREE_TERM_PROC_REDS;
- }
- tpep = tpep->next;
- }
-
- if (free_term_procs) {
- ERTS_PROCS_ASSERT(free_list);
- saved_term_procs.start = tpep;
- if (!tpep)
- saved_term_procs.end = NULL;
- else {
- ERTS_PROCS_ASSERT(tpep->prev);
- tpep->prev->next = NULL; /* end of free_list */
- tpep->prev = NULL;
- }
- }
-
- if (!tpep) {
- /* Done */
- ERTS_PROCS_ASSERT(pbdp->pid_ix == pbdp->pid_sz);
- pbdp->state = BUILDING_RESULT;
- pbdp->bif_invocation->next = free_list;
- free_list = pbdp->bif_invocation;
- pbdp->bif_invocation = NULL;
- }
- else {
- /* Link in bif_invocation again where we left off */
- pbdp->bif_invocation->prev = tpep->prev;
- pbdp->bif_invocation->next = tpep;
- tpep->prev = pbdp->bif_invocation;
- if (pbdp->bif_invocation->prev)
- pbdp->bif_invocation->prev->next = pbdp->bif_invocation;
- else {
- ERTS_PROCS_ASSERT(saved_term_procs.start == tpep);
- saved_term_procs.start = pbdp->bif_invocation;
- }
- }
-
- ERTS_PROCS_DBG_CHK_TPLIST();
- ERTS_PROCS_DBG_CHK_FREELIST(free_list);
- erts_smp_mtx_unlock(&proc_tab_mtx);
-
- /*
- * We do the actual free of term proc structures now when we
- * have released the table lock instead of when we encountered
- * them. This since free() isn't for free and we don't want to
- * unnecessarily block other schedulers.
- */
- while (free_list) {
- tpep = free_list;
- free_list = tpep->next;
- erts_free(ERTS_ALC_T_PROCS_TPROC_EL, tpep);
- }
-
- have_reds -= reds;
- if (have_reds < 0)
- have_reds = 0;
- BUMP_REDS(p, reds);
- break;
- }
-
- case BUILDING_RESULT: {
- int conses, ix, min_ix;
- Eterm *hp;
- Eterm res = *res_accp;
-
- ERTS_PROCS_DBG_VERIFY_PIDS(pbdp);
- ERTS_PROCS_DBG_CHK_RESLIST(res);
-
- ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, begin_build_res);
-
- have_reds = ERTS_BIF_REDS_LEFT(p);
- conses = ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED*have_reds;
- min_ix = pbdp->pid_ix - conses;
- if (min_ix < 0) {
- min_ix = 0;
- conses = pbdp->pid_ix;
- }
-
- hp = HAlloc(p, conses*2);
- ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(pbdp, hp, conses*2);
-
- for (ix = pbdp->pid_ix - 1; ix >= min_ix; ix--) {
- ERTS_PROCS_ASSERT(is_internal_pid(pbdp->pid[ix]));
- res = CONS(hp, pbdp->pid[ix], res);
- hp += 2;
- }
-
- ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(pbdp, hp);
-
- pbdp->pid_ix = min_ix;
- if (min_ix == 0)
- pbdp->state = RETURN_RESULT;
- else {
- pbdp->pid_sz = min_ix;
- pbdp->pid = erts_realloc(ERTS_ALC_T_PROCS_PIDS,
- pbdp->pid,
- sizeof(Eterm)*pbdp->pid_sz);
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- pbdp->debug.pid_started = erts_realloc(ERTS_ALC_T_PROCS_PIDS,
- pbdp->debug.pid_started,
- sizeof(SysTimeval)*pbdp->pid_sz);
-#endif
- }
- reds = conses/ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED;
- BUMP_REDS(p, reds);
- have_reds -= reds;
-
- ERTS_PROCS_DBG_CHK_RESLIST(res);
- ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, end_build_res);
- *res_accp = res;
- break;
- }
- case RETURN_RESULT:
- cleanup_processes_bif_data(mbp);
- return 1;
-
- default:
- erl_exit(ERTS_ABORT_EXIT,
- "erlang:processes/0: Invalid state: %d\n",
- (int) pbdp->state);
- }
-
-
- } while (have_reds || pbdp->state == RETURN_RESULT);
-
- return 0;
-}
-
-/*
- * processes_trap/2 is a hidden BIF that processes/0 traps to.
- */
-
-static BIF_RETTYPE processes_trap(BIF_ALIST_2)
-{
- Eterm res_acc;
- Binary *mbp;
-
- /*
- * This bif cannot be called from erlang code. It can only be
- * trapped to from processes/0; therefore, a bad argument
- * is a processes/0 internal error.
- */
-
- ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_trap, call);
- ERTS_PROCS_ASSERT(is_nil(BIF_ARG_1) || is_list(BIF_ARG_1));
-
- res_acc = BIF_ARG_1;
-
- ERTS_PROCS_ASSERT(ERTS_TERM_IS_MAGIC_BINARY(BIF_ARG_2));
-
- mbp = ((ProcBin *) binary_val(BIF_ARG_2))->val;
-
- ERTS_PROCS_ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp)
- == cleanup_processes_bif_data);
- ERTS_PROCS_ASSERT(
- ((ErtsProcessesBifData *) ERTS_MAGIC_BIN_DATA(mbp))->debug.caller
- == BIF_P->id);
-
- if (processes_bif_engine(BIF_P, &res_acc, mbp)) {
- ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_trap, return);
- BIF_RET(res_acc);
- }
- else {
- ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_trap, trap);
- ERTS_BIF_YIELD2(&processes_trap_export, BIF_P, res_acc, BIF_ARG_2);
- }
-}
-
-
-
-/*
- * The actual processes/0 BIF.
- */
-
-BIF_RETTYPE processes_0(BIF_ALIST_0)
-{
- /*
- * A requirement: The list of pids returned should be a consistent
- * snapshot of all processes existing at some point
- * in time during the execution of processes/0. Since
- * processes might terminate while processes/0 is
- * executing, we have to keep track of terminated
- * processes and add them to the result. We also
- * ignore processes created after processes/0 has
- * begun executing.
- */
- Eterm res_acc = NIL;
- Binary *mbp = erts_create_magic_binary(sizeof(ErtsProcessesBifData),
- cleanup_processes_bif_data);
- ErtsProcessesBifData *pbdp = ERTS_MAGIC_BIN_DATA(mbp);
-
- ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_0, call);
- pbdp->state = INITIALIZING;
- ERTS_PROCS_DBG_INIT(BIF_P, pbdp);
-
- if (ERTS_BIF_REDS_LEFT(BIF_P) >= ERTS_PROCESSES_BIF_MIN_START_REDS
- && processes_bif_engine(BIF_P, &res_acc, mbp)) {
- erts_bin_free(mbp);
- ERTS_PROCS_DBG_CHK_RESLIST(res_acc);
- ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_0, return);
- BIF_RET(res_acc);
- }
- else {
- Eterm *hp;
- Eterm magic_bin;
- ERTS_PROCS_DBG_CHK_RESLIST(res_acc);
- hp = HAlloc(BIF_P, PROC_BIN_SIZE);
- ERTS_PROCS_DBG_SAVE_HEAP_ALLOC(pbdp, hp, PROC_BIN_SIZE);
- magic_bin = erts_mk_magic_binary_term(&hp, &MSO(BIF_P), mbp);
- ERTS_PROCS_DBG_VERIFY_HEAP_ALLOC_USED(pbdp, hp);
- ERTS_PROCS_DBG_TRACE(BIF_P->id, processes_0, trap);
- ERTS_BIF_YIELD2(&processes_trap_export, BIF_P, res_acc, magic_bin);
- }
-}
-
-static void
-init_processes_bif(void)
-{
- saved_term_procs.start = NULL;
- saved_term_procs.end = NULL;
- processes_bif_tab_chunks = (((erts_max_processes - 1)
- / ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE)
- + 1);
-
- /* processes_trap/2 is a hidden BIF that the processes/0 BIF traps to. */
- sys_memset((void *) &processes_trap_export, 0, sizeof(Export));
- processes_trap_export.address = &processes_trap_export.code[3];
- processes_trap_export.code[0] = am_erlang;
- processes_trap_export.code[1] = am_processes_trap;
- processes_trap_export.code[2] = 2;
- processes_trap_export.code[3] = (BeamInstr) em_apply_bif;
- processes_trap_export.code[4] = (BeamInstr) &processes_trap;
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
- erts_get_emu_time(&debug_tv_start);
-#endif
-
-}
-
-/*
- * Debug stuff
- */
-
-#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
-int
-erts_dbg_check_halloc_lock(Process *p)
-{
- if (ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p))
- return 1;
- if (p->id == ERTS_INVALID_PID)
- return 1;
- if (p->scheduler_data && p == p->scheduler_data->match_pseudo_process)
- return 1;
- if (erts_thr_progress_is_blocking())
- return 1;
- return 0;
-}
-#endif
-
-Eterm
-erts_debug_processes(Process *c_p)
-{
- /* This is the old processes/0 BIF. */
- int i;
- Uint need;
- Eterm res;
- Eterm* hp;
- Process *p;
-#ifdef DEBUG
- Eterm *hp_end;
-#endif
-
- erts_smp_mtx_lock(&proc_tab_mtx);
-
- res = NIL;
- need = erts_process_count() * 2;
- hp = HAlloc(c_p, need); /* we need two heap words for each pid */
-#ifdef DEBUG
- hp_end = hp + need;
-#endif
-
- /* make the list by scanning bakward */
-
-
- for (i = erts_max_processes-1; i >= 0; i--) {
- if ((p = process_tab[i]) != NULL) {
- res = CONS(hp, process_tab[i]->id, res);
- hp += 2;
- }
- }
- ASSERT(hp == hp_end);
-
- erts_smp_mtx_unlock(&proc_tab_mtx);
-
- return res;
-}
-
-Eterm
-erts_debug_processes_bif_info(Process *c_p)
-{
- ERTS_DECL_AM(processes_bif_info);
- Eterm elements[] = {
- AM_processes_bif_info,
- make_small((Uint) ERTS_PROCESSES_BIF_MIN_START_REDS),
- make_small((Uint) processes_bif_tab_chunks),
- make_small((Uint) ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE),
- make_small((Uint) ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED),
- make_small((Uint) ERTS_PROCESSES_BIF_TAB_FREE_TERM_PROC_REDS),
- make_small((Uint) ERTS_PROCESSES_BIF_INSPECT_TERM_PROC_PER_RED),
- make_small((Uint) ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS),
- make_small((Uint) ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED),
- make_small((Uint) ERTS_PROCESSES_BIF_DEBUGLEVEL)
- };
- Uint sz = 0;
- Eterm *hp;
- (void) erts_bld_tuplev(NULL, &sz, sizeof(elements)/sizeof(Eterm), elements);
- hp = HAlloc(c_p, sz);
- return erts_bld_tuplev(&hp, NULL, sizeof(elements)/sizeof(Eterm), elements);
-}
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
-static void
-debug_processes_check_found_pid(ErtsProcessesBifData *pbdp,
- Eterm pid,
- SysTimeval *tvp,
- int pid_should_be_found)
-{
- int i;
- for (i = 0; i < pbdp->pid_ix; i++) {
- if (pbdp->pid[i] == pid
- && pbdp->debug.pid_started[i].tv_sec == tvp->tv_sec
- && pbdp->debug.pid_started[i].tv_usec == tvp->tv_usec) {
- ERTS_PROCS_ASSERT(pid_should_be_found);
- return;
- }
- }
- ERTS_PROCS_ASSERT(!pid_should_be_found);
-}
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_RESLIST
-static void
-debug_processes_check_res_list(Eterm list)
-{
- while (is_list(list)) {
- Eterm* consp = list_val(list);
- Eterm hd = CAR(consp);
- ERTS_PROCS_ASSERT(is_internal_pid(hd));
- list = CDR(consp);
- }
-
- ERTS_PROCS_ASSERT(is_nil(list));
-}
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS
-
-static void
-debug_processes_save_all_pids(ErtsProcessesBifData *pbdp)
-{
- int ix, tix, cpix;
- pbdp->debug.correct_pids_verified = 0;
- pbdp->debug.correct_pids = erts_alloc(ERTS_ALC_T_PROCS_PIDS,
- sizeof(Eterm)*pbdp->pid_sz);
-
- for (tix = 0, cpix = 0; tix < erts_max_processes; tix++) {
- Process *rp = process_tab[tix];
- if (rp) {
- ERTS_PROCS_ASSERT(is_internal_pid(rp->id));
- pbdp->debug.correct_pids[cpix++] = rp->id;
- ERTS_PROCS_ASSERT(cpix <= pbdp->pid_sz);
- }
- }
- ERTS_PROCS_ASSERT(cpix == pbdp->pid_sz);
-
- for (ix = 0; ix < pbdp->pid_sz; ix++)
- pbdp->pid[ix] = make_small(ix);
-}
-
-static void
-debug_processes_verify_all_pids(ErtsProcessesBifData *pbdp)
-{
- int ix, cpix;
-
- ERTS_PROCS_ASSERT(pbdp->pid_ix == pbdp->pid_sz);
-
- for (ix = 0; ix < pbdp->pid_sz; ix++) {
- int found = 0;
- Eterm pid = pbdp->pid[ix];
- ERTS_PROCS_ASSERT(is_internal_pid(pid));
- for (cpix = ix; cpix < pbdp->pid_sz; cpix++) {
- if (pbdp->debug.correct_pids[cpix] == pid) {
- pbdp->debug.correct_pids[cpix] = NIL;
- found = 1;
- break;
- }
- }
- if (!found) {
- for (cpix = 0; cpix < ix; cpix++) {
- if (pbdp->debug.correct_pids[cpix] == pid) {
- pbdp->debug.correct_pids[cpix] = NIL;
- found = 1;
- break;
- }
- }
- }
- ERTS_PROCS_ASSERT(found);
- }
- pbdp->debug.correct_pids_verified = 1;
-
- erts_free(ERTS_ALC_T_PROCS_PIDS, pbdp->debug.correct_pids);
- pbdp->debug.correct_pids = NULL;
-}
-#endif /* ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_PIDS */
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
-static void
-debug_processes_check_term_proc_list(void)
-{
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx));
- if (!saved_term_procs.start)
- ERTS_PROCS_ASSERT(!saved_term_procs.end);
- else {
- SysTimeval tv_now;
- SysTimeval *prev_xtvp = NULL;
- ErtsTermProcElement *tpep;
- erts_get_emu_time(&tv_now);
-
- for (tpep = saved_term_procs.start; tpep; tpep = tpep->next) {
- if (!tpep->prev)
- ERTS_PROCS_ASSERT(saved_term_procs.start == tpep);
- else
- ERTS_PROCS_ASSERT(tpep->prev->next == tpep);
- if (!tpep->next)
- ERTS_PROCS_ASSERT(saved_term_procs.end == tpep);
- else
- ERTS_PROCS_ASSERT(tpep->next->prev == tpep);
- if (tpep->ix < 0) {
- SysTimeval *tvp = &tpep->u.bif_invocation.time;
- ERTS_PROCS_ASSERT(erts_cmp_timeval(&debug_tv_start, tvp) < 0
- && erts_cmp_timeval(tvp, &tv_now) < 0);
- }
- else {
- SysTimeval *stvp = &tpep->u.process.spawned;
- SysTimeval *xtvp = &tpep->u.process.exited;
-
- ERTS_PROCS_ASSERT(erts_cmp_timeval(&debug_tv_start,
- stvp) < 0);
- ERTS_PROCS_ASSERT(erts_cmp_timeval(stvp, xtvp) < 0);
- if (prev_xtvp)
- ERTS_PROCS_ASSERT(erts_cmp_timeval(prev_xtvp, xtvp) < 0);
- prev_xtvp = xtvp;
- ERTS_PROCS_ASSERT(is_internal_pid(tpep->u.process.pid));
- ERTS_PROCS_ASSERT(tpep->ix
- == internal_pid_index(tpep->u.process.pid));
- }
- }
-
- }
-}
-
-static void
-debug_processes_check_term_proc_free_list(ErtsTermProcElement *free_list)
-{
- if (saved_term_procs.start) {
- ErtsTermProcElement *ftpep;
- ErtsTermProcElement *tpep;
-
- for (ftpep = free_list; ftpep; ftpep = ftpep->next) {
- for (tpep = saved_term_procs.start; tpep; tpep = tpep->next)
- ERTS_PROCS_ASSERT(ftpep != tpep);
- }
- }
-}
-
-#endif
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL != 0
-
-static void
-debug_processes_assert_error(char* expr, char* file, int line)
-{
- fflush(stdout);
- erts_fprintf(stderr, "%s:%d: Assertion failed: %s\n", file, line, expr);
- fflush(stderr);
- abort();
-}
-
-#endif
-
-/* *\
- * End of the processes/0 BIF implementation. *
-\* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
/*
* A nice system halt closing all open port goes as follows:
* 1) This function schedules the aux work ERTS_SSI_AUX_WORK_REAP_PORTS
@@ -10330,3 +9043,19 @@ void erl_halt(int code)
notify_reap_ports_relb();
}
}
+
+#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
+int
+erts_dbg_check_halloc_lock(Process *p)
+{
+ if (ERTS_PROC_LOCK_MAIN & erts_proc_lc_my_proc_locks(p))
+ return 1;
+ if (p->common.id == ERTS_INVALID_PID)
+ return 1;
+ if (p->scheduler_data && p == p->scheduler_data->match_pseudo_process)
+ return 1;
+ if (erts_thr_progress_is_blocking())
+ return 1;
+ return 0;
+}
+#endif
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 7c481a91dd..6d1032c292 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -42,6 +42,9 @@ typedef struct process Process;
#include "erl_process_lock.h" /* Only pull out important types... */
#undef ERTS_PROCESS_LOCK_ONLY_PROC_LOCK_TYPE__
+#define ERL_PORT_GET_PORT_TYPE_ONLY__
+#include "erl_port.h"
+#undef ERL_PORT_GET_PORT_TYPE_ONLY__
#include "erl_vm.h"
#include "erl_smp.h"
#include "erl_message.h"
@@ -66,11 +69,10 @@ typedef struct process Process;
#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY
struct ErtsNodesMonitor_;
-struct port;
#define ERTS_MAX_NO_OF_SCHEDULERS 1024
-#define ERTS_DEFAULT_MAX_PROCESSES (1 << 15)
+#define ERTS_DEFAULT_MAX_PROCESSES (1 << 18)
#define ERTS_HEAP_ALLOC(Type, Size) \
erts_alloc((Type), (Size))
@@ -112,28 +114,29 @@ extern int erts_sched_thread_suggested_stack_size;
#define PRIORITY_NORMAL 2
#define PRIORITY_LOW 3
#define ERTS_NO_PROC_PRIO_LEVELS 4
+#define ERTS_NO_PROC_PRIO_QUEUES 3
#define ERTS_PORT_PRIO_LEVEL ERTS_NO_PROC_PRIO_LEVELS
+#define ERTS_NO_PRIO_LEVELS (ERTS_NO_PROC_PRIO_LEVELS + 1)
#define ERTS_RUNQ_FLGS_PROCS_QMASK \
((((Uint32) 1) << ERTS_NO_PROC_PRIO_LEVELS) - 1)
-#define ERTS_NO_PRIO_LEVELS (ERTS_NO_PROC_PRIO_LEVELS + 1)
-#define ERTS_RUNQ_FLGS_MIGRATE_QMASK \
+#define ERTS_RUNQ_FLGS_QMASK \
((((Uint32) 1) << ERTS_NO_PRIO_LEVELS) - 1)
#define ERTS_RUNQ_FLGS_EMIGRATE_SHFT \
- ERTS_NO_PROC_PRIO_LEVELS
+ ERTS_NO_PRIO_LEVELS
#define ERTS_RUNQ_FLGS_IMMIGRATE_SHFT \
(ERTS_RUNQ_FLGS_EMIGRATE_SHFT + ERTS_NO_PRIO_LEVELS)
#define ERTS_RUNQ_FLGS_EVACUATE_SHFT \
(ERTS_RUNQ_FLGS_IMMIGRATE_SHFT + ERTS_NO_PRIO_LEVELS)
#define ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
- (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_EMIGRATE_SHFT)
+ (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_EMIGRATE_SHFT)
#define ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
- (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)
+ (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)
#define ERTS_RUNQ_FLGS_EVACUATE_QMASK \
- (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_EVACUATE_SHFT)
+ (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_EVACUATE_SHFT)
#define ERTS_RUNQ_FLG_BASE2 \
(ERTS_RUNQ_FLGS_EVACUATE_SHFT + ERTS_NO_PRIO_LEVELS)
@@ -148,14 +151,18 @@ extern int erts_sched_thread_suggested_stack_size;
(((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 3))
#define ERTS_RUNQ_FLG_INACTIVE \
(((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 4))
+#define ERTS_RUNQ_FLG_NONEMPTY \
+ (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 5))
+#define ERTS_RUNQ_FLG_PROTECTED \
+ (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 6))
#define ERTS_RUNQ_FLGS_MIGRATION_QMASKS \
(ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
| ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
| ERTS_RUNQ_FLGS_EVACUATE_QMASK)
+
#define ERTS_RUNQ_FLGS_MIGRATION_INFO \
- (ERTS_RUNQ_FLGS_MIGRATION_QMASKS \
- | ERTS_RUNQ_FLG_INACTIVE \
+ (ERTS_RUNQ_FLG_INACTIVE \
| ERTS_RUNQ_FLG_OUT_OF_WORK \
| ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK)
@@ -186,34 +193,24 @@ extern int erts_sched_thread_suggested_stack_size;
#define ERTS_UNSET_RUNQ_FLG_EVACUATE(FLGS, PRIO) \
((FLGS) &= ~ERTS_RUNQ_FLG_EVACUATE((PRIO)))
-#define ERTS_RUNQ_IFLG_SUSPENDED (((erts_aint32_t) 1) << 0)
-#define ERTS_RUNQ_IFLG_NONEMPTY (((erts_aint32_t) 1) << 1)
-
-
-#ifdef DEBUG
-# if defined(ARCH_64) && !HALFWORD_HEAP
-# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
- (*((char **) &(RQP)) = (char *) (0xdeadbeefdead0003 | ((N) << 4)))
-# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
-do { \
- ASSERT((RQP) != NULL); \
- ASSERT(((((Uint) (RQP)) & ((Uint) 0x3))) == ((Uint) 0)); \
- ASSERT((((Uint) (RQP)) & ~((Uint) 0xffff)) != ((Uint) 0xdeadbeefdead0000));\
-} while (0)
-# else
-# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
- (*((char **) &(RQP)) = (char *) (0xdead0003 | ((N) << 4)))
-# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
-do { \
- ASSERT((RQP) != NULL); \
- ASSERT(((((UWord) (RQP)) & ((UWord) 1))) == ((UWord) 0)); \
- ASSERT((((UWord) (RQP)) & ~((UWord) 0xffff)) != ((UWord) 0xdead0000)); \
-} while (0)
-# endif
-#else
-# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N)
-# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP)
-#endif
+#define ERTS_RUNQ_FLGS_INIT(RQ, INIT) \
+ erts_smp_atomic32_init_nob(&(RQ)->flags, (erts_aint32_t) (INIT))
+#define ERTS_RUNQ_FLGS_SET(RQ, FLGS) \
+ ((Uint32) erts_smp_atomic32_read_bor_relb(&(RQ)->flags, \
+ (erts_aint32_t) (FLGS)))
+#define ERTS_RUNQ_FLGS_UNSET(RQ, FLGS) \
+ ((Uint32) erts_smp_atomic32_read_band_relb(&(RQ)->flags, \
+ (erts_aint32_t) ~(FLGS)))
+#define ERTS_RUNQ_FLGS_GET(RQ) \
+ ((Uint32) erts_smp_atomic32_read_acqb(&(RQ)->flags))
+#define ERTS_RUNQ_FLGS_GET_NOB(RQ) \
+ ((Uint32) erts_smp_atomic32_read_nob(&(RQ)->flags))
+#define ERTS_RUNQ_FLGS_GET_MB(RQ) \
+ ((Uint32) erts_smp_atomic32_read_mb(&(RQ)->flags))
+#define ERTS_RUNQ_FLGS_READ_BSET(RQ, MSK, FLGS) \
+ ((Uint32) erts_smp_atomic32_read_bset_relb(&(RQ)->flags, \
+ (erts_aint32_t) (MSK), \
+ (erts_aint32_t) (FLGS)))
typedef enum {
ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED,
@@ -258,14 +255,15 @@ typedef enum {
#define ERTS_SSI_AUX_WORK_DD_THR_PRGR (((erts_aint32_t) 1) << 2)
#define ERTS_SSI_AUX_WORK_FIX_ALLOC_DEALLOC (((erts_aint32_t) 1) << 3)
#define ERTS_SSI_AUX_WORK_FIX_ALLOC_LOWER_LIM (((erts_aint32_t) 1) << 4)
-#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 5)
-#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 6)
-#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR (((erts_aint32_t) 1) << 7)
-#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 8)
-#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 9)
-#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 10)
-#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 11)
-#define ERTS_SSI_AUX_WORK_REAP_PORTS (((erts_aint32_t) 1) << 12)
+#define ERTS_SSI_AUX_WORK_THR_PRGR_LATER_OP (((erts_aint32_t) 1) << 5)
+#define ERTS_SSI_AUX_WORK_ASYNC_READY (((erts_aint32_t) 1) << 6)
+#define ERTS_SSI_AUX_WORK_ASYNC_READY_CLEAN (((erts_aint32_t) 1) << 7)
+#define ERTS_SSI_AUX_WORK_MISC_THR_PRGR (((erts_aint32_t) 1) << 8)
+#define ERTS_SSI_AUX_WORK_MISC (((erts_aint32_t) 1) << 9)
+#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 10)
+#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 11)
+#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 12)
+#define ERTS_SSI_AUX_WORK_REAP_PORTS (((erts_aint32_t) 1) << 13)
typedef struct ErtsSchedulerSleepInfo_ ErtsSchedulerSleepInfo;
@@ -291,8 +289,9 @@ struct ErtsSchedulerSleepInfo_ {
typedef struct ErtsProcList_ ErtsProcList;
struct ErtsProcList_ {
Eterm pid;
- SysTimeval started;
+ Uint64 started_interval;
ErtsProcList* next;
+ ErtsProcList* prev;
};
typedef struct ErtsMiscOpList_ ErtsMiscOpList;
@@ -312,21 +311,39 @@ typedef struct ErtsSchedulerData_ ErtsSchedulerData;
typedef struct ErtsRunQueue_ ErtsRunQueue;
typedef struct {
- int len;
- int max_len;
+ erts_smp_atomic32_t len;
+ erts_aint32_t max_len;
int reds;
+} ErtsRunQueueInfo;
+
+#ifdef ERTS_SMP
+
+typedef struct {
+ Uint32 flags;
+ ErtsRunQueue *misc_evac_runq;
struct {
struct {
int this;
int other;
} limit;
ErtsRunQueue *runq;
- } migrate;
-} ErtsRunQueueInfo;
+ Uint32 flags;
+ } prio[ERTS_NO_PRIO_LEVELS];
+} ErtsMigrationPath;
+
+typedef struct ErtsMigrationPaths_ ErtsMigrationPaths;
+
+struct ErtsMigrationPaths_ {
+ void *block;
+ ErtsMigrationPaths *next;
+ ErtsThrPrgrVal thr_prgr;
+ ErtsMigrationPath mpath[1];
+};
+
+#endif /* ERTS_SMP */
struct ErtsRunQueue_ {
int ix;
- erts_smp_atomic32_t info_flags;
erts_smp_mtx_t mtx;
erts_smp_cnd_t cnd;
@@ -334,19 +351,18 @@ struct ErtsRunQueue_ {
ErtsSchedulerData *scheduler;
int waiting; /* < 0 in sys schedule; > 0 on cnd variable */
int woken;
- Uint32 flags;
+ erts_smp_atomic32_t flags;
int check_balance_reds;
int full_reds_history_sum;
int full_reds_history[ERTS_FULL_REDS_HISTORY_SIZE];
int out_of_work_count;
- int max_len;
- int len;
+ erts_aint32_t max_len;
+ erts_aint32_t len;
int wakeup_other;
int wakeup_other_reds;
int halt_in_progress;
struct {
- int len;
ErtsProcList *pending_exiters;
Uint context_switches;
Uint reductions;
@@ -361,13 +377,13 @@ struct ErtsRunQueue_ {
struct {
ErtsMiscOpList *start;
ErtsMiscOpList *end;
- ErtsRunQueue *evac_runq;
+ erts_smp_atomic_t evac_runq;
} misc;
struct {
ErtsRunQueueInfo info;
- struct port *start;
- struct port *end;
+ Port *start;
+ Port *end;
} ports;
};
@@ -381,7 +397,7 @@ extern ErtsAlignedRunQueue *erts_aligned_run_queues;
#define ERTS_PROC_REDUCTIONS_EXECUTED(RQ, PRIO, REDS, AREDS) \
do { \
(RQ)->procs.reductions += (AREDS); \
- (RQ)->procs.prio_info[p->prio].reds += (REDS); \
+ (RQ)->procs.prio_info[(PRIO)].reds += (REDS); \
(RQ)->check_balance_reds -= (REDS); \
(RQ)->wakeup_other_reds += (AREDS); \
} while (0)
@@ -427,6 +443,10 @@ typedef struct {
void (*completed_callback)(void *);
void (*completed_arg)(void *);
} dd;
+ struct {
+ ErtsThrPrgrLaterOp *first;
+ ErtsThrPrgrLaterOp *last;
+ } later_op;
#endif
#ifdef ERTS_USE_ASYNC_READY_Q
struct {
@@ -473,7 +493,7 @@ struct ErtsSchedulerData_ {
ErtsSchedulerSleepInfo *ssi;
Process *current_process;
Uint no; /* Scheduler number */
- struct port *current_port;
+ Port *current_port;
ErtsRunQueue *run_queue;
int virtual_reds;
int cpu_id; /* >= 0 when bound */
@@ -502,6 +522,90 @@ extern ErtsAlignedSchedulerData *erts_aligned_scheduler_data;
extern ErtsSchedulerData *erts_scheduler_data;
#endif
+#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
+int erts_smp_lc_runq_is_locked(ErtsRunQueue *);
+#endif
+
+#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
+
+/*
+ * Run queue locked during modifications. We use atomic ops since
+ * other threads peek at values without run queue lock.
+ */
+
+ERTS_GLB_INLINE void erts_smp_inc_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio);
+ERTS_GLB_INLINE void erts_smp_dec_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio);
+ERTS_GLB_INLINE void erts_smp_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void
+erts_smp_inc_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio)
+{
+ erts_aint32_t len;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+
+ len = erts_smp_atomic32_read_nob(&rqi->len);
+ ASSERT(len >= 0);
+ if (len == 0) {
+ ASSERT((erts_smp_atomic32_read_nob(&rq->flags)
+ & ((erts_aint32_t) (1 << prio))) == 0);
+ erts_smp_atomic32_read_bor_nob(&rq->flags,
+ (erts_aint32_t) (1 << prio));
+ }
+ len++;
+ if (rqi->max_len < len)
+ rqi->max_len = len;
+
+ erts_smp_atomic32_set_relb(&rqi->len, len);
+
+ rq->len++;
+ if (rq->max_len < rq->len)
+ rq->max_len = len;
+ ASSERT(rq->len > 0);
+}
+
+ERTS_GLB_INLINE void
+erts_smp_dec_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio)
+{
+ erts_aint32_t len;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+
+ len = erts_smp_atomic32_read_nob(&rqi->len);
+ len--;
+ ASSERT(len >= 0);
+ if (len == 0) {
+ ASSERT((erts_smp_atomic32_read_nob(&rq->flags)
+ & ((erts_aint32_t) (1 << prio))));
+ erts_smp_atomic32_read_band_nob(&rq->flags,
+ ~((erts_aint32_t) (1 << prio)));
+ }
+ erts_smp_atomic32_set_relb(&rqi->len, len);
+
+ rq->len--;
+ ASSERT(rq->len >= 0);
+}
+
+ERTS_GLB_INLINE void
+erts_smp_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi)
+{
+ erts_aint32_t len;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+
+ len = erts_smp_atomic32_read_nob(&rqi->len);
+ ASSERT(rqi->max_len >= len);
+ rqi->max_len = len;
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#define RUNQ_READ_LEN(X) erts_smp_atomic32_read_nob((X))
+
+#endif /* ERTS_INCLUDE_SCHEDULER_INTERNALS */
+
/*
* Process Specific Data.
*
@@ -614,6 +718,8 @@ struct ErtsPendingSuspend_ {
# define BIN_OLD_VHEAP(p) (p)->bin_old_vheap
struct process {
+ ErtsPTabElementCommon common; /* *Need* to be first in struct */
+
/* All fields in the PCB that differs between different heap
* architectures, have been moved to the end of this struct to
* make sure that as few offsets as possible differ. Different
@@ -656,17 +762,9 @@ struct process {
* Number of reductions left to execute.
* Only valid for the current process.
*/
- Uint32 status; /* process STATE */
- Uint32 gcstatus; /* process gc STATE */
- Uint32 rstatus; /* process resume STATE */
Uint32 rcount; /* suspend count */
- Eterm id; /* The pid of this process */
- int prio; /* Priority of process */
- int skipped; /* Times a low prio process has been rescheduled */
+ int schedule_count; /* Times left to reschedule a low prio process */
Uint reds; /* No of reductions for this process */
- Eterm tracer_proc; /* If proc is traced, this is the tracer
- (can NOT be boxed) */
- Uint trace_flags; /* Trace flags (used to be in flags) */
Eterm group_leader; /* Pid in charge
(can be boxed) */
Uint flags; /* Trap exit, etc (no trace flags anymore) */
@@ -675,11 +773,6 @@ struct process {
Eterm ftrace; /* Latest exception stack trace dump */
Process *next; /* Pointer to next process in run queue */
- Process *prev; /* Pointer to prev process in run queue */
-
- struct reg_proc *reg; /* NULL iff not registered */
- ErtsLink *nlinks;
- ErtsMonitor *monitors; /* The process monitors, both ends */
struct ErtsNodesMonitor_ *nodes_monitors;
@@ -689,7 +782,10 @@ struct process {
ErlMessageQueue msg; /* Message queue */
- ErtsBifTimer *bif_timers; /* Bif timers aiming at this process */
+ union {
+ ErtsBifTimer *bif_timers; /* Bif timers aiming at this process */
+ void *terminate;
+ } u;
ProcDict *dictionary; /* Process dictionary, may be NULL */
@@ -713,8 +809,7 @@ struct process {
* Information mainly for post-mortem use (erl crash dump).
*/
Eterm parent; /* Pid of process that created this process. */
- SysTimeval started; /* Time when started. */
-
+ erts_approx_time_t approx_started; /* Time when started. */
/* This is the place, where all fields that differs between memory
* architectures, have gone to.
@@ -736,28 +831,16 @@ struct process {
Uint64 bin_old_vheap_sz; /* Virtual old heap block size for binaries */
Uint64 bin_old_vheap; /* Virtual old heap size for binaries */
- union {
-#ifdef ERTS_SMP
- ErtsSmpPTimer *ptimer;
-#else
- ErlTimer tm; /* Timer entry */
-#endif
- void *exit_data; /* Misc data referred during termination */
- } u;
-
- ErtsRunQueue *bound_runq;
+ erts_smp_atomic32_t state; /* Process state flags (see ERTS_PSFLG_*) */
#ifdef ERTS_SMP
+ ErlMessageInQueue msg_inq;
+ ErtsPendExit pending_exit;
erts_proc_lock_t lock;
ErtsSchedulerData *scheduler_data;
- int is_exiting;
- Uint32 runq_flags;
- Uint32 status_flags;
- ErlMessageInQueue msg_inq;
Eterm suspendee;
ErtsPendingSuspend *pending_suspenders;
- ErtsPendExit pending_exit;
- ErtsRunQueue *run_queue;
+ erts_smp_atomic_t run_queue;
#ifdef HIPE
struct hipe_process_state_smp hipe_smp;
#endif
@@ -782,6 +865,8 @@ struct process {
#endif
};
+extern const Process erts_invalid_process;
+
#ifdef CHECK_FOR_HOLES
# define INIT_HOLE_CHECK(p) \
do { \
@@ -811,6 +896,29 @@ void erts_check_for_holes(Process* p);
#define SEQ_TRACE_TOKEN(p) ((p)->seq_trace_token)
+#if ERTS_NO_PROC_PRIO_LEVELS > 4
+# error "Need to increase ERTS_PSFLG_PRIO_SHIFT"
+#endif
+
+#define ERTS_PSFLG_PRIO_SHIFT 2
+
+#define ERTS_PSFLG_BIT(N) \
+ (((erts_aint32_t) 1) << (ERTS_PSFLG_PRIO_SHIFT + (N)))
+
+#define ERTS_PSFLG_PRIO_MASK (ERTS_PSFLG_BIT(0) - 1)
+
+#define ERTS_PSFLG_FREE ERTS_PSFLG_BIT(0)
+#define ERTS_PSFLG_EXITING ERTS_PSFLG_BIT(1)
+#define ERTS_PSFLG_PENDING_EXIT ERTS_PSFLG_BIT(2)
+#define ERTS_PSFLG_ACTIVE ERTS_PSFLG_BIT(3)
+#define ERTS_PSFLG_IN_RUNQ ERTS_PSFLG_BIT(4)
+#define ERTS_PSFLG_RUNNING ERTS_PSFLG_BIT(5)
+#define ERTS_PSFLG_SUSPENDED ERTS_PSFLG_BIT(6)
+#define ERTS_PSFLG_GC ERTS_PSFLG_BIT(7)
+#define ERTS_PSFLG_BOUND ERTS_PSFLG_BIT(8)
+#define ERTS_PSFLG_TRAP_EXIT ERTS_PSFLG_BIT(9)
+
+
/* The sequential tracing token is a tuple of size 5:
*
* {Flags, Label, Serial, Sender}
@@ -883,9 +991,6 @@ Eterm* erts_heap_alloc(Process* p, Uint need, Uint xtra);
Eterm* erts_set_hole_marker(Eterm* ptr, Uint sz);
#endif
-extern Process** process_tab;
-extern Uint erts_max_processes;
-extern Uint erts_process_tab_index_mask;
extern Uint erts_default_process_flags;
extern erts_smp_rwmtx_t erts_cpu_bind_rwmtx;
/* If any of the erts_system_monitor_* variables are set (enabled),
@@ -914,16 +1019,8 @@ struct erts_system_profile_flags_t {
};
extern struct erts_system_profile_flags_t erts_system_profile_flags;
-#define INVALID_PID(p, pid) ((p) == NULL \
- || (p)->id != (pid) \
- || (p)->status == P_EXITING)
-
-#define IS_TRACED(p) ( (p)->tracer_proc != NIL )
-#define ARE_TRACE_FLAGS_ON(p,tf) ( ((p)->trace_flags & (tf|F_SENSITIVE)) == (tf) )
-#define IS_TRACED_FL(p,tf) ( IS_TRACED(p) && ARE_TRACE_FLAGS_ON(p,tf) )
-
/* process flags */
-#define F_TRAPEXIT (1 << 0)
+#define F_HIBERNATE_SCHED (1 << 0) /* Schedule out after hibernate op */
#define F_INSLPQUEUE (1 << 1) /* Set if in timer queue */
#define F_TIMO (1 << 2) /* Set if timeout */
#define F_HEAP_GROW (1 << 3)
@@ -934,7 +1031,6 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
#define F_HAVE_BLCKD_MSCHED (1 << 8) /* Process has blocked multi-scheduling */
#define F_P2PNR_RESCHED (1 << 9) /* Process has been rescheduled via erts_pid2proc_not_running() */
#define F_FORCE_GC (1 << 10) /* Force gc at process in-scheduling */
-#define F_HIBERNATE_SCHED (1 << 11) /* Schedule out after hibernate op */
/* process trace_flags */
#define F_SENSITIVE (1 << 0)
@@ -1001,67 +1097,10 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
#define DT_UTAG_FLAGS(P) ((P)->dt_utag_flags)
#endif
-
-#ifdef ERTS_SMP
-/* Status flags ... */
-#define ERTS_PROC_SFLG_PENDADD2SCHEDQ (((Uint32) 1) << 0) /* Pending
- add to
- schedule q */
-#define ERTS_PROC_SFLG_INRUNQ (((Uint32) 1) << 1) /* Process is
- in run q */
-#define ERTS_PROC_SFLG_TRAPEXIT (((Uint32) 1) << 2) /* Process is
- trapping
- exit */
-#define ERTS_PROC_SFLG_RUNNING (((Uint32) 1) << 3) /* Process is
- running */
-/* Scheduler flags in process struct... */
-#define ERTS_PROC_RUNQ_FLG_RUNNING (((Uint32) 1) << 0) /* Process is
- running */
-
-#endif
-
-
-#ifdef ERTS_SMP
-#define ERTS_PROC_IS_TRAPPING_EXITS(P) \
- (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) \
- & ERTS_PROC_LOCK_STATUS), \
- (P)->status_flags & ERTS_PROC_SFLG_TRAPEXIT)
-
-#define ERTS_PROC_SET_TRAP_EXIT(P) \
- (ERTS_SMP_LC_ASSERT(((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS) \
- & erts_proc_lc_my_proc_locks((P))) \
- == (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)), \
- (P)->status_flags |= ERTS_PROC_SFLG_TRAPEXIT, \
- (P)->flags |= F_TRAPEXIT, \
- 1)
-
-#define ERTS_PROC_UNSET_TRAP_EXIT(P) \
- (ERTS_SMP_LC_ASSERT(((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS) \
- & erts_proc_lc_my_proc_locks((P))) \
- == (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)), \
- (P)->status_flags &= ~ERTS_PROC_SFLG_TRAPEXIT, \
- (P)->flags &= ~F_TRAPEXIT, \
- 0)
-#else
-#define ERTS_PROC_IS_TRAPPING_EXITS(P) ((P)->flags & F_TRAPEXIT)
-#define ERTS_PROC_SET_TRAP_EXIT(P) ((P)->flags |= F_TRAPEXIT, 1)
-#define ERTS_PROC_UNSET_TRAP_EXIT(P) ((P)->flags &= ~F_TRAPEXIT, 0)
-#endif
-
/* Option flags to erts_send_exit_signal() */
#define ERTS_XSIG_FLG_IGN_KILL (((Uint32) 1) << 0)
#define ERTS_XSIG_FLG_NO_IGN_NORMAL (((Uint32) 1) << 1)
-
-/* Process status values */
-#define P_FREE 0
-#define P_RUNABLE 1
-#define P_WAITING 2
-#define P_RUNNING 3
-#define P_EXITING 4
-#define P_GARBING 5
-#define P_SUSPENDED 6
-
#define CANCEL_TIMER(p) \
do { \
if ((p)->flags & (F_INSLPQUEUE)) \
@@ -1083,15 +1122,187 @@ void erts_early_init_scheduling(int);
void erts_init_scheduling(int, int);
Eterm erts_sched_wall_time_request(Process *c_p, int set, int enable);
+Uint64 erts_get_proc_interval(void);
+Uint64 erts_ensure_later_proc_interval(Uint64);
+Uint64 erts_step_proc_interval(void);
ErtsProcList *erts_proclist_create(Process *);
void erts_proclist_destroy(ErtsProcList *);
-int erts_proclist_same(ErtsProcList *, Process *);
+
+ERTS_GLB_INLINE int erts_proclist_same(ErtsProcList *, Process *);
+ERTS_GLB_INLINE void erts_proclist_store_first(ErtsProcList **, ErtsProcList *);
+ERTS_GLB_INLINE void erts_proclist_store_last(ErtsProcList **, ErtsProcList *);
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_first(ErtsProcList *);
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_last(ErtsProcList *);
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_next(ErtsProcList *, ErtsProcList *);
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_prev(ErtsProcList *, ErtsProcList *);
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_first(ErtsProcList **);
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_last(ErtsProcList **);
+ERTS_GLB_INLINE int erts_proclist_fetch(ErtsProcList **, ErtsProcList **);
+ERTS_GLB_INLINE void erts_proclist_remove(ErtsProcList **, ErtsProcList *);
+ERTS_GLB_INLINE int erts_proclist_is_empty(ErtsProcList *);
+ERTS_GLB_INLINE int erts_proclist_is_first(ErtsProcList *, ErtsProcList *);
+ERTS_GLB_INLINE int erts_proclist_is_last(ErtsProcList *, ErtsProcList *);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE int
+erts_proclist_same(ErtsProcList *plp, Process *p)
+{
+ return (plp->pid == p->common.id
+ && (plp->started_interval
+ == p->common.u.alive.started_interval));
+}
+
+ERTS_GLB_INLINE void erts_proclist_store_first(ErtsProcList **list,
+ ErtsProcList *element)
+{
+ if (!*list)
+ element->next = element->prev = element;
+ else {
+ element->prev = (*list)->prev;
+ element->next = *list;
+ element->prev->next = element;
+ element->next->prev = element;
+ }
+ *list = element;
+}
+
+ERTS_GLB_INLINE void erts_proclist_store_last(ErtsProcList **list,
+ ErtsProcList *element)
+{
+ if (!*list) {
+ element->next = element->prev = element;
+ *list = element;
+ }
+ else {
+ element->prev = (*list)->prev;
+ element->next = *list;
+ element->prev->next = element;
+ element->next->prev = element;
+ }
+}
+
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_first(ErtsProcList *list)
+{
+ return list;
+}
+
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_last(ErtsProcList *list)
+{
+ if (!list)
+ return NULL;
+ else
+ return list->prev;
+}
+
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_next(ErtsProcList *list,
+ ErtsProcList *element)
+{
+ ErtsProcList *next;
+ ASSERT(list && element);
+ next = element->next;
+ return list == next ? NULL : next;
+}
+
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_peek_prev(ErtsProcList *list,
+ ErtsProcList *element)
+{
+ ErtsProcList *prev;
+ ASSERT(list && element);
+ prev = element->prev;
+ return list == element ? NULL : prev;
+}
+
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_first(ErtsProcList **list)
+{
+ if (!*list)
+ return NULL;
+ else {
+ ErtsProcList *res = *list;
+ if (res == *list)
+ *list = NULL;
+ else
+ *list = res->next;
+ res->next->prev = res->prev;
+ res->prev->next = res->next;
+ return res;
+ }
+}
+
+ERTS_GLB_INLINE ErtsProcList *erts_proclist_fetch_last(ErtsProcList **list)
+{
+ if (!*list)
+ return NULL;
+ else {
+ ErtsProcList *res = (*list)->prev;
+ if (res == *list)
+ *list = NULL;
+ res->next->prev = res->prev;
+ res->prev->next = res->next;
+ return res;
+ }
+}
+
+ERTS_GLB_INLINE int erts_proclist_fetch(ErtsProcList **list_first,
+ ErtsProcList **list_last)
+{
+ if (!*list_first) {
+ if (list_last)
+ *list_last = NULL;
+ return 0;
+ }
+ else {
+ if (list_last)
+ *list_last = (*list_first)->prev;
+ (*list_first)->prev->next = NULL;
+ (*list_first)->prev = NULL;
+ return !0;
+ }
+}
+
+ERTS_GLB_INLINE void erts_proclist_remove(ErtsProcList **list,
+ ErtsProcList *element)
+{
+ ASSERT(list && *list);
+ if (*list == element) {
+ *list = element->next;
+ if (*list == element)
+ *list = NULL;
+ }
+ element->next->prev = element->prev;
+ element->prev->next = element->next;
+}
+
+ERTS_GLB_INLINE int erts_proclist_is_empty(ErtsProcList *list)
+{
+ return list == NULL;
+}
+
+ERTS_GLB_INLINE int erts_proclist_is_first(ErtsProcList *list,
+ ErtsProcList *element)
+{
+ ASSERT(list && element);
+ return list == element;
+}
+
+ERTS_GLB_INLINE int erts_proclist_is_last(ErtsProcList *list,
+ ErtsProcList *element)
+{
+ ASSERT(list && element);
+ return list->prev == element;
+}
+
+#endif
int erts_sched_set_wakeup_other_thresold(char *str);
int erts_sched_set_wakeup_other_type(char *str);
int erts_sched_set_busy_wait_threshold(char *str);
+void erts_schedule_thr_prgr_later_op(void (*)(void *),
+ void *,
+ ErtsThrPrgrLaterOp *);
+
#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
int erts_dbg_check_halloc_lock(Process *p);
#endif
@@ -1118,6 +1329,10 @@ void erts_smp_notify_check_children_needed(void);
#if ERTS_USE_ASYNC_READY_Q
void erts_notify_check_async_ready_queue(void *);
#endif
+#ifdef ERTS_SMP
+void erts_notify_code_ix_activation(Process* p, ErtsThrPrgrVal later);
+void erts_notify_finish_breakpointing(Process* p);
+#endif
void erts_schedule_misc_aux_work(int sched_id,
void (*func)(void *),
void *arg);
@@ -1128,7 +1343,7 @@ void erts_schedule_multi_misc_aux_work(int ignore_self,
erts_aint32_t erts_set_aux_work_timeout(int, erts_aint32_t, int);
void erts_sched_notify_check_cpu_bind(void);
Uint erts_active_schedulers(void);
-void erts_init_process(int);
+void erts_init_process(int, int);
Eterm erts_process_status(Process *, ErtsProcLocks, Process *, Eterm);
Uint erts_run_queues_len(Uint *);
void erts_add_to_runq(Process *);
@@ -1138,14 +1353,6 @@ Eterm erts_get_schedulers_binds(Process *c_p);
Eterm erts_set_cpu_topology(Process *c_p, Eterm term);
Eterm erts_bind_schedulers(Process *c_p, Eterm how);
ErtsRunQueue *erts_schedid2runq(Uint);
-#ifdef ERTS_SMP
-ErtsMigrateResult erts_proc_migrate(Process *,
- ErtsProcLocks *,
- ErtsRunQueue *,
- int *,
- ErtsRunQueue *,
- int *);
-#endif
Process *schedule(Process*, int);
void erts_schedule_misc_op(void (*)(void *), void *);
Eterm erl_create_process(Process*, Eterm, Eterm, Eterm, ErlSpawnOpts*);
@@ -1155,7 +1362,6 @@ void set_timer(Process*, Uint);
void cancel_timer(Process*);
/* Begin System profile */
Uint erts_runnable_process_count(void);
-Uint erts_process_count(void);
/* End System profile */
void erts_init_empty_process(Process *p);
void erts_cleanup_empty_process(Process* p);
@@ -1179,7 +1385,7 @@ Eterm erts_sched_stat_term(Process *p, int total);
void erts_free_proc(Process *);
-void erts_suspend(Process*, ErtsProcLocks, struct port*);
+void erts_suspend(Process*, ErtsProcLocks, Port*);
void erts_resume(Process*, ErtsProcLocks);
int erts_resume_processes(ErtsProcList *);
@@ -1194,8 +1400,7 @@ int erts_send_exit_signal(Process *,
#ifdef ERTS_SMP
void erts_handle_pending_exit(Process *, ErtsProcLocks);
#define ERTS_PROC_PENDING_EXIT(P) \
- (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) & ERTS_PROC_LOCK_STATUS),\
- (P)->pending_exit.reason != THE_NON_VALUE)
+ (ERTS_PSFLG_PENDING_EXIT & erts_smp_atomic32_read_acqb(&(P)->state))
#else
#define ERTS_PROC_PENDING_EXIT(P) 0
#endif
@@ -1205,9 +1410,6 @@ void erts_deep_process_dump(int, void *);
Eterm erts_get_reader_groups_map(Process *c_p);
Eterm erts_debug_reader_groups_map(Process *c_p, int groups);
-Sint erts_test_next_pid(int, Uint);
-Eterm erts_debug_processes(Process *c_p);
-Eterm erts_debug_processes_bif_info(Process *c_p);
Uint erts_debug_nbalance(void);
int erts_debug_wait_deallocations(Process *c_p);
@@ -1247,13 +1449,26 @@ ErtsSchedulerData *erts_get_scheduler_data(void)
#endif
#endif
+void erts_schedule_process(Process *, erts_aint32_t);
+
+ERTS_GLB_INLINE void erts_proc_notify_new_message(Process *p);
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE void
+erts_proc_notify_new_message(Process *p)
+{
+ /* No barrier needed, due to msg lock */
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&p->state);
+ if (!(state & ERTS_PSFLG_ACTIVE))
+ erts_schedule_process(p, state);
+}
+#endif
+
#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
#define ERTS_PROCESS_LOCK_ONLY_LOCK_CHECK_PROTO__
#include "erl_process_lock.h"
#undef ERTS_PROCESS_LOCK_ONLY_LOCK_CHECK_PROTO__
-int erts_smp_lc_runq_is_locked(ErtsRunQueue *);
#define ERTS_SMP_LC_CHK_RUNQ_LOCK(RQ, L) \
do { \
if ((L)) \
@@ -1379,13 +1594,91 @@ erts_proc_set_error_handler(Process *p, ErtsProcLocks plocks, Eterm handler)
#endif
+#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
+
#ifdef ERTS_SMP
-ErtsRunQueue *erts_prepare_emigrate(ErtsRunQueue *c_rq,
- ErtsRunQueueInfo *c_rqi,
- int prio);
+#include "erl_thr_progress.h"
+
+extern erts_atomic_t erts_migration_paths;
+
+ERTS_GLB_INLINE ErtsMigrationPaths *erts_get_migration_paths_managed(void);
+ERTS_GLB_INLINE ErtsMigrationPaths *erts_get_migration_paths(void);
ERTS_GLB_INLINE ErtsRunQueue *erts_check_emigration_need(ErtsRunQueue *c_rq,
int prio);
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE ErtsMigrationPaths *
+erts_get_migration_paths_managed(void)
+{
+ return (ErtsMigrationPaths *) erts_atomic_read_ddrb(&erts_migration_paths);
+}
+
+ERTS_GLB_INLINE ErtsMigrationPaths *
+erts_get_migration_paths(void)
+{
+ if (erts_thr_progress_is_managed_thread())
+ return erts_get_migration_paths_managed();
+ else
+ return NULL;
+}
+
+ERTS_GLB_INLINE ErtsRunQueue *
+erts_check_emigration_need(ErtsRunQueue *c_rq, int prio)
+{
+ ErtsMigrationPaths *mps = erts_get_migration_paths();
+ ErtsMigrationPath *mp;
+ Uint32 flags;
+
+ if (!mps)
+ return NULL;
+
+ mp = &mps->mpath[c_rq->ix];
+ flags = mp->flags;
+
+ if (ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, prio)) {
+ int len;
+
+ if (ERTS_CHK_RUNQ_FLG_EVACUATE(flags, prio)) {
+ /* force emigration */
+ return mp->prio[prio].runq;
+ }
+
+ if (flags & ERTS_RUNQ_FLG_INACTIVE) {
+ /*
+ * Run queue was inactive at last balance. Verify that
+ * it still is before forcing emigration.
+ */
+ if (ERTS_RUNQ_FLGS_GET(c_rq) & ERTS_RUNQ_FLG_INACTIVE)
+ return mp->prio[prio].runq;
+ }
+
+
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&c_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&c_rq->procs.prio_info[prio].len);
+
+ if (len > mp->prio[prio].limit.this) {
+ ErtsRunQueue *n_rq = mp->prio[prio].runq;
+ if (n_rq) {
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&n_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&n_rq->procs.prio_info[prio].len);
+
+ if (len < mp->prio[prio].limit.other)
+ return n_rq;
+ }
+ }
+ }
+ return NULL;
+}
+
+#endif
+
+#endif
+
#endif
ERTS_GLB_INLINE int erts_is_scheduler_bound(ErtsSchedulerData *esdp);
@@ -1408,29 +1701,6 @@ ERTS_GLB_INLINE void erts_smp_runqs_unlock(ErtsRunQueue *rq1, ErtsRunQueue *rq2)
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-#ifdef ERTS_SMP
-ERTS_GLB_INLINE ErtsRunQueue *
-erts_check_emigration_need(ErtsRunQueue *c_rq, int prio)
-{
- ErtsRunQueueInfo *c_rqi;
-
- if (!ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio))
- return NULL;
-
- if (prio == ERTS_PORT_PRIO_LEVEL)
- c_rqi = &c_rq->ports.info;
- else
- c_rqi = &c_rq->procs.prio_info[prio];
-
- if (!ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio)
- && !(c_rq->flags & ERTS_RUNQ_FLG_INACTIVE)
- && c_rqi->len <= c_rqi->migrate.limit.this)
- return NULL;
-
- return erts_prepare_emigrate(c_rq, c_rqi, prio);
-}
-#endif
-
ERTS_GLB_INLINE
int erts_is_scheduler_bound(ErtsSchedulerData *esdp)
{
@@ -1451,7 +1721,7 @@ ERTS_GLB_INLINE
Eterm erts_get_current_pid(void)
{
Process *proc = erts_get_current_process();
- return proc ? proc->id : THE_NON_VALUE;
+ return proc ? proc->common.id : THE_NON_VALUE;
}
ERTS_GLB_INLINE
@@ -1468,10 +1738,9 @@ Uint erts_get_scheduler_id(void)
ERTS_GLB_INLINE ErtsRunQueue *
erts_get_runq_proc(Process *p)
{
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
#ifdef ERTS_SMP
- ASSERT(p->run_queue);
- return p->run_queue;
+ ASSERT(ERTS_AINT_NULL != erts_atomic_read_nob(&p->run_queue));
+ return (ErtsRunQueue *) erts_atomic_read_nob(&p->run_queue);
#else
return ERTS_RUNQ_IX(0);
#endif
@@ -1642,25 +1911,13 @@ extern int erts_disable_proc_not_running_opt;
#ifdef DEBUG
#define ERTS_SMP_ASSERT_IS_NOT_EXITING(P) \
- do { ASSERT(!(P)->is_exiting); } while (0)
+ do { ASSERT(!ERTS_PROC_IS_EXITING((P))); } while (0)
#else
#define ERTS_SMP_ASSERT_IS_NOT_EXITING(P)
#endif
-/* NOTE: At least one process lock has to be held on P! */
-#ifdef ERTS_ENABLE_LOCK_CHECK
-#define ERTS_PROC_IS_EXITING(P) \
- (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) != 0 \
- || erts_lc_pix_lock_is_locked(ERTS_PID2PIXLOCK((P)->id))),\
- (P)->is_exiting)
-#else
-#define ERTS_PROC_IS_EXITING(P) ((P)->is_exiting)
-#endif
-
#else /* !ERTS_SMP */
-#define ERTS_PROC_IS_EXITING(P) ((P)->status == P_EXITING)
-
#define ERTS_SMP_ASSERT_IS_NOT_EXITING(P)
#define erts_pid2proc_not_running erts_pid2proc
@@ -1668,11 +1925,15 @@ extern int erts_disable_proc_not_running_opt;
#endif
+#define ERTS_PROC_IS_EXITING(P) \
+ (ERTS_PSFLG_EXITING & erts_smp_atomic32_read_acqb(&(P)->state))
+
+
/* Minimum NUMBER of processes for a small system to start */
-#ifdef ERTS_SMP
+#define ERTS_MIN_PROCESSES 1024
+#if defined(ERTS_SMP) && ERTS_MIN_PROCESSES < ERTS_NO_OF_PIX_LOCKS
+#undef ERTS_MIN_PROCESSES
#define ERTS_MIN_PROCESSES ERTS_NO_OF_PIX_LOCKS
-#else
-#define ERTS_MIN_PROCESSES 16
#endif
void erts_smp_notify_inc_runq(ErtsRunQueue *runq);
diff --git a/erts/emulator/beam/erl_process_dict.c b/erts/emulator/beam/erl_process_dict.c
index 93466da3aa..bf384c66e1 100644
--- a/erts/emulator/beam/erl_process_dict.c
+++ b/erts/emulator/beam/erl_process_dict.c
@@ -360,7 +360,7 @@ static void pd_hash_erase(Process *p, Eterm id, Eterm *ret)
erts_fprintf(stderr,
"Process dictionary for process %T is broken, trying to "
"display term found in line %d:\n"
- "%T\n", p->id, __LINE__, old);
+ "%T\n", p->common.id, __LINE__, old);
#endif
erl_exit(1, "Damaged process dictionary found during erase/1.");
}
@@ -405,7 +405,7 @@ Eterm erts_pd_hash_get(Process *p, Eterm id)
erts_fprintf(stderr,
"Process dictionary for process %T is broken, trying to "
"display term found in line %d:\n"
- "%T\n", p->id, __LINE__, tmp);
+ "%T\n", p->common.id, __LINE__, tmp);
#endif
erl_exit(1, "Damaged process dictionary found during get/1.");
}
@@ -614,7 +614,7 @@ static Eterm pd_hash_put(Process *p, Eterm id, Eterm value)
erts_fprintf(stderr,
"Process dictionary for process %T is broken, trying to "
"display term found in line %d:\n"
- "%T\n", p->id, __LINE__, old);
+ "%T\n", p->common.id, __LINE__, old);
#endif
erl_exit(1, "Damaged process dictionary found during put/2.");
diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index 3550f1396c..ba74dfd6a1 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -60,19 +60,16 @@ extern BeamInstr beam_continue_exit[];
void
erts_deep_process_dump(int to, void *to_arg)
{
- int i;
+ int i, max = erts_ptab_max(&erts_proc);
all_binaries = NULL;
- for (i = 0; i < erts_max_processes; i++) {
- if ((process_tab[i] != NULL) && (process_tab[i]->i != ENULL)) {
- if (process_tab[i]->status != P_EXITING) {
- Process* p = process_tab[i];
-
- if (p->status != P_GARBING) {
- dump_process_info(to, to_arg, p);
- }
- }
+ for (i = 0; i < max; i++) {
+ Process *p = erts_pix2proc(i);
+ if (p && p->i != ENULL) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_GC)))
+ dump_process_info(to, to_arg, p);
}
}
@@ -88,8 +85,8 @@ dump_process_info(int to, void *to_arg, Process *p)
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p);
- if ((p->trace_flags & F_SENSITIVE) == 0 && p->msg.first) {
- erts_print(to, to_arg, "=proc_messages:%T\n", p->id);
+ if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0 && p->msg.first) {
+ erts_print(to, to_arg, "=proc_messages:%T\n", p->common.id);
for (mp = p->msg.first; mp != NULL; mp = mp->next) {
Eterm mesg = ERL_MESSAGE_TERM(mp);
if (is_value(mesg))
@@ -103,21 +100,21 @@ dump_process_info(int to, void *to_arg, Process *p)
}
}
- if ((p->trace_flags & F_SENSITIVE) == 0) {
+ if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) {
if (p->dictionary) {
- erts_print(to, to_arg, "=proc_dictionary:%T\n", p->id);
+ erts_print(to, to_arg, "=proc_dictionary:%T\n", p->common.id);
erts_deep_dictionary_dump(to, to_arg,
p->dictionary, dump_element_nl);
}
}
- if ((p->trace_flags & F_SENSITIVE) == 0) {
- erts_print(to, to_arg, "=proc_stack:%T\n", p->id);
+ if ((ERTS_TRACE_FLAGS(p) & F_SENSITIVE) == 0) {
+ erts_print(to, to_arg, "=proc_stack:%T\n", p->common.id);
for (sp = p->stop; sp < STACK_START(p); sp++) {
yreg = stack_element_dump(to, to_arg, p, sp, yreg);
}
- erts_print(to, to_arg, "=proc_heap:%T\n", p->id);
+ erts_print(to, to_arg, "=proc_heap:%T\n", p->common.id);
for (sp = p->stop; sp < STACK_START(p); sp++) {
Eterm term = *sp;
@@ -326,7 +323,7 @@ heap_dump(int to, void *to_arg, Eterm x)
int i;
GET_DOUBLE_DATA((ptr+1), f);
- i = sys_double_to_chars(f.fd, (char*) sbuf);
+ i = sys_double_to_chars(f.fd, (char*) sbuf, sizeof(sbuf));
sys_memset(sbuf+i, 0, 31-i);
erts_print(to, to_arg, "F%X:%s\n", i, sbuf);
*ptr = OUR_NIL;
diff --git a/erts/emulator/beam/erl_process_lock.c b/erts/emulator/beam/erl_process_lock.c
index f7900317cc..2db5df06b4 100644
--- a/erts/emulator/beam/erl_process_lock.c
+++ b/erts/emulator/beam/erl_process_lock.c
@@ -66,11 +66,12 @@
#endif
#include "erl_process.h"
-
-const Process erts_proc_lock_busy;
+#include "erl_thr_progress.h"
#ifdef ERTS_SMP
+#if ERTS_PROC_LOCK_OWN_IMPL
+
#define ERTS_PROC_LOCK_SPIN_COUNT_MAX 2000
#define ERTS_PROC_LOCK_SPIN_COUNT_SCHED_INC 32
#define ERTS_PROC_LOCK_SPIN_COUNT_BASE 1000
@@ -90,6 +91,13 @@ static void check_queue(erts_proc_lock_t *lck);
#error "The size of the 'uflgs' field of the erts_tse_t type is too small"
#endif
+static int proc_lock_spin_count;
+static int aux_thr_proc_lock_spin_count;
+
+static void cleanup_tse(void);
+
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
#ifdef ERTS_ENABLE_LOCK_CHECK
static struct {
Sint16 proc_lock_main;
@@ -101,10 +109,6 @@ static struct {
erts_pix_lock_t erts_pix_locks[ERTS_NO_OF_PIX_LOCKS];
-static int proc_lock_spin_count;
-static int aux_thr_proc_lock_spin_count;
-
-static void cleanup_tse(void);
void
erts_init_proc_lock(int cpus)
@@ -118,13 +122,8 @@ erts_init_proc_lock(int cpus)
erts_mtx_init(&erts_pix_locks[i].u.mtx, "pix_lock");
#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_thr_install_exit_handler(cleanup_tse);
-#ifdef ERTS_ENABLE_LOCK_CHECK
- lc_id.proc_lock_main = erts_lc_get_lock_order_id("proc_main");
- lc_id.proc_lock_link = erts_lc_get_lock_order_id("proc_link");
- lc_id.proc_lock_msgq = erts_lc_get_lock_order_id("proc_msgq");
- lc_id.proc_lock_status = erts_lc_get_lock_order_id("proc_status");
-#endif
if (cpus > 1) {
proc_lock_spin_count = ERTS_PROC_LOCK_SPIN_COUNT_BASE;
proc_lock_spin_count += (ERTS_PROC_LOCK_SPIN_COUNT_SCHED_INC
@@ -141,8 +140,17 @@ erts_init_proc_lock(int cpus)
}
if (proc_lock_spin_count > ERTS_PROC_LOCK_SPIN_COUNT_MAX)
proc_lock_spin_count = ERTS_PROC_LOCK_SPIN_COUNT_MAX;
+#endif
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ lc_id.proc_lock_main = erts_lc_get_lock_order_id("proc_main");
+ lc_id.proc_lock_link = erts_lc_get_lock_order_id("proc_link");
+ lc_id.proc_lock_msgq = erts_lc_get_lock_order_id("proc_msgq");
+ lc_id.proc_lock_status = erts_lc_get_lock_order_id("proc_status");
+#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
+
#ifdef ERTS_ENABLE_LOCK_CHECK
#define CHECK_UNUSED_TSE(W) ERTS_LC_ASSERT((W)->uflgs == 0)
#else
@@ -164,13 +172,6 @@ tse_return(erts_tse_t *tse)
erts_tse_return(tse);
}
-void
-erts_proc_lock_prepare_proc_lock_waiter(void)
-{
- tse_return(tse_fetch(NULL));
-}
-
-
static void
cleanup_tse(void)
{
@@ -397,7 +398,7 @@ wait_for_locks(Process *p,
ErtsProcLocks need_locks,
ErtsProcLocks olflgs)
{
- erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->id);
+ erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->common.id);
erts_tse_t *wtr;
/* Acquire a waiter object on which this thread can wait. */
@@ -551,7 +552,7 @@ erts_proc_unlock_failed(Process *p,
erts_pix_lock_t *pixlck,
ErtsProcLocks wait_locks)
{
- erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->id);
+ erts_pix_lock_t *pix_lock = pixlck ? pixlck : ERTS_PID2PIXLOCK(p->common.id);
#if ERTS_PROC_LOCK_ATOMIC_IMPL
erts_pix_lock(pix_lock);
@@ -560,6 +561,16 @@ erts_proc_unlock_failed(Process *p,
transfer_locks(p, wait_locks, pix_lock, 1); /* unlocks pix_lock */
}
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
+void
+erts_proc_lock_prepare_proc_lock_waiter(void)
+{
+#if ERTS_PROC_LOCK_OWN_IMPL
+ tse_return(tse_fetch(NULL));
+#endif
+}
+
/*
* proc_safelock() locks process locks on two processes. In order
* to avoid a deadlock, proc_safelock() unlocks those locks that
@@ -568,12 +579,11 @@ erts_proc_unlock_failed(Process *p,
*/
static void
-proc_safelock(Process *a_proc,
- erts_pix_lock_t *a_pix_lck,
+proc_safelock(int is_managed,
+ Process *a_proc,
ErtsProcLocks a_have_locks,
ErtsProcLocks a_need_locks,
Process *b_proc,
- erts_pix_lock_t *b_pix_lck,
ErtsProcLocks b_have_locks,
ErtsProcLocks b_need_locks)
{
@@ -581,7 +591,6 @@ proc_safelock(Process *a_proc,
#ifdef ERTS_ENABLE_LOCK_CHECK
Eterm pid1, pid2;
#endif
- erts_pix_lock_t *pix_lck1, *pix_lck2;
ErtsProcLocks need_locks1, have_locks1, need_locks2, have_locks2;
ErtsProcLocks unlock_mask;
int lock_no, refc1 = 0, refc2 = 0;
@@ -593,53 +602,47 @@ proc_safelock(Process *a_proc,
* Locks with the same lock order should be locked on p1 before p2.
*/
if (a_proc) {
- if (a_proc->id < b_proc->id) {
+ if (a_proc->common.id < b_proc->common.id) {
p1 = a_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
- pid1 = a_proc->id;
+ pid1 = a_proc->common.id;
#endif
- pix_lck1 = a_pix_lck;
need_locks1 = a_need_locks;
have_locks1 = a_have_locks;
p2 = b_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
- pid2 = b_proc->id;
+ pid2 = b_proc->common.id;
#endif
- pix_lck2 = b_pix_lck;
need_locks2 = b_need_locks;
have_locks2 = b_have_locks;
}
- else if (a_proc->id > b_proc->id) {
+ else if (a_proc->common.id > b_proc->common.id) {
p1 = b_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
- pid1 = b_proc->id;
+ pid1 = b_proc->common.id;
#endif
- pix_lck1 = b_pix_lck;
need_locks1 = b_need_locks;
have_locks1 = b_have_locks;
p2 = a_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
- pid2 = a_proc->id;
+ pid2 = a_proc->common.id;
#endif
- pix_lck2 = a_pix_lck;
need_locks2 = a_need_locks;
have_locks2 = a_have_locks;
}
else {
ERTS_LC_ASSERT(a_proc == b_proc);
- ERTS_LC_ASSERT(a_proc->id == b_proc->id);
+ ERTS_LC_ASSERT(a_proc->common.id == b_proc->common.id);
p1 = a_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
- pid1 = a_proc->id;
+ pid1 = a_proc->common.id;
#endif
- pix_lck1 = a_pix_lck;
need_locks1 = a_need_locks | b_need_locks;
have_locks1 = a_have_locks | b_have_locks;
p2 = NULL;
#ifdef ERTS_ENABLE_LOCK_CHECK
pid2 = 0;
#endif
- pix_lck2 = NULL;
need_locks2 = 0;
have_locks2 = 0;
}
@@ -647,16 +650,14 @@ proc_safelock(Process *a_proc,
else {
p1 = b_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
- pid1 = b_proc->id;
+ pid1 = b_proc->common.id;
#endif
- pix_lck1 = b_pix_lck;
need_locks1 = b_need_locks;
have_locks1 = b_have_locks;
p2 = NULL;
#ifdef ERTS_ENABLE_LOCK_CHECK
pid2 = 0;
#endif
- pix_lck2 = NULL;
need_locks2 = 0;
have_locks2 = 0;
#ifdef ERTS_ENABLE_LOCK_CHECK
@@ -704,21 +705,21 @@ proc_safelock(Process *a_proc,
if (unlock_locks) {
have_locks1 &= ~unlock_locks;
need_locks1 |= unlock_locks;
- if (!have_locks1) {
+ if (!is_managed && !have_locks1) {
refc1 = 1;
erts_smp_proc_inc_refc(p1);
}
- erts_smp_proc_unlock__(p1, pix_lck1, unlock_locks);
+ erts_smp_proc_unlock(p1, unlock_locks);
}
unlock_locks = unlock_mask & have_locks2;
if (unlock_locks) {
have_locks2 &= ~unlock_locks;
need_locks2 |= unlock_locks;
- if (!have_locks2) {
+ if (!is_managed && !have_locks2) {
refc2 = 1;
erts_smp_proc_inc_refc(p2);
}
- erts_smp_proc_unlock__(p2, pix_lck2, unlock_locks);
+ erts_smp_proc_unlock(p2, unlock_locks);
}
}
@@ -749,7 +750,7 @@ proc_safelock(Process *a_proc,
if (need_locks2 & lock)
lock_no--;
locks = need_locks1 & lock_mask;
- erts_smp_proc_lock__(p1, pix_lck1, locks);
+ erts_smp_proc_lock(p1, locks);
have_locks1 |= locks;
need_locks1 &= ~locks;
}
@@ -760,7 +761,7 @@ proc_safelock(Process *a_proc,
lock = (1 << ++lock_no);
}
locks = need_locks2 & lock_mask;
- erts_smp_proc_lock__(p2, pix_lck2, locks);
+ erts_smp_proc_lock(p2, locks);
have_locks2 |= locks;
need_locks2 &= ~locks;
}
@@ -795,10 +796,12 @@ proc_safelock(Process *a_proc,
}
#endif
- if (refc1)
- erts_smp_proc_dec_refc(p1);
- if (refc2)
- erts_smp_proc_dec_refc(p2);
+ if (!is_managed) {
+ if (refc1)
+ erts_smp_proc_dec_refc(p1);
+ if (refc2)
+ erts_smp_proc_dec_refc(p2);
+ }
}
void
@@ -809,77 +812,196 @@ erts_proc_safelock(Process *a_proc,
ErtsProcLocks b_have_locks,
ErtsProcLocks b_need_locks)
{
- proc_safelock(a_proc,
- a_proc ? ERTS_PID2PIXLOCK(a_proc->id) : NULL,
+ proc_safelock(erts_get_scheduler_id() != 0,
+ a_proc,
a_have_locks,
a_need_locks,
b_proc,
- b_proc ? ERTS_PID2PIXLOCK(b_proc->id) : NULL,
b_have_locks,
b_need_locks);
}
-/*
- * erts_pid2proc_safelock() is called from erts_pid2proc_opt() when
- * it wasn't possible to trylock all locks needed.
- * c_p - current process
- * c_p_have_locks - locks held on c_p
- * pid - process id of process we are looking up
- * proc - process struct of process we are looking
- * up (both in and out argument)
- * need_locks - all locks we need (including have_locks)
- * pix_lock - pix lock for process we are looking up
- * flags - option flags
- */
-void
-erts_pid2proc_safelock(Process *c_p,
- ErtsProcLocks c_p_have_locks,
- Process **proc,
- ErtsProcLocks need_locks,
- erts_pix_lock_t *pix_lock,
- int flags)
+Process *
+erts_pid2proc_opt(Process *c_p,
+ ErtsProcLocks c_p_have_locks,
+ Eterm pid,
+ ErtsProcLocks pid_need_locks,
+ int flags)
{
- Process *p = *proc;
- ERTS_LC_ASSERT(p->lock.refc > 0);
- ERTS_LC_ASSERT(process_tab[internal_pid_index(p->id)] == p);
- p->lock.refc++;
- erts_pix_unlock(pix_lock);
-
- proc_safelock(c_p,
- c_p ? ERTS_PID2PIXLOCK(c_p->id) : NULL,
- c_p_have_locks,
- c_p_have_locks,
- p,
- pix_lock,
- 0,
- need_locks);
+ Process *dec_refc_proc = NULL;
+ ErtsThrPrgrDelayHandle dhndl;
+ ErtsProcLocks need_locks;
+ Uint pix;
+ Process *proc;
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ ErtsProcLocks lcnt_locks;
+#endif
- erts_pix_lock(pix_lock);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ if (c_p) {
+ ErtsProcLocks might_unlock = c_p_have_locks & pid_need_locks;
+ if (might_unlock)
+ erts_proc_lc_might_unlock(c_p, might_unlock);
+ }
+#endif
- if (!p->is_exiting
- || ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- && process_tab[internal_pid_index(p->id)] == p)) {
- ERTS_LC_ASSERT(p->lock.refc > 1);
- p->lock.refc--;
+ if (is_not_internal_pid(pid))
+ return NULL;
+ pix = internal_pid_index(pid);
+
+ ERTS_LC_ASSERT((pid_need_locks & ERTS_PROC_LOCKS_ALL) == pid_need_locks);
+ need_locks = pid_need_locks;
+
+ if (c_p && c_p->common.id == pid) {
+ ASSERT(c_p->common.id != ERTS_INVALID_PID);
+ ASSERT(c_p == erts_pix2proc(pix));
+
+ if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+ && ERTS_PROC_IS_EXITING(c_p))
+ return NULL;
+ need_locks &= ~c_p_have_locks;
+ if (!need_locks) {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(c_p);
+ return c_p;
+ }
}
- else {
- /* No proc. Note, we need to keep refc until after process unlock */
- erts_pix_unlock(pix_lock);
- erts_smp_proc_unlock__(p, pix_lock, need_locks);
- *proc = NULL;
- erts_pix_lock(pix_lock);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- if (--p->lock.refc == 0) {
- erts_pix_unlock(pix_lock);
- erts_free_proc(p);
- erts_pix_lock(pix_lock);
+
+ dhndl = erts_thr_progress_unmanaged_delay();
+
+ proc = (Process *) erts_ptab_pix2intptr_ddrb(&erts_proc, pix);
+
+ if (proc) {
+ if (proc->common.id != pid)
+ proc = NULL;
+ else if (!need_locks) {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(proc);
}
+ else {
+ int busy;
+
+#if ERTS_PROC_LOCK_OWN_IMPL
+#ifdef ERTS_ENABLE_LOCK_COUNT
+ lcnt_locks = need_locks;
+ if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) {
+ erts_lcnt_proc_lock(&proc->lock, need_locks);
+ }
+#endif
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ /* Make sure erts_pid2proc_safelock() is enough to handle
+ a potential lock order violation situation... */
+ busy = erts_proc_lc_trylock_force_busy(proc, need_locks);
+ if (!busy)
+#endif
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+ {
+ /* Try a quick trylock to grab all the locks we need. */
+ busy = (int) erts_smp_proc_raw_trylock__(proc, need_locks);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_CHECK)
+ erts_proc_lc_trylock(proc, need_locks, !busy);
+#endif
+#ifdef ERTS_PROC_LOCK_DEBUG
+ if (!busy)
+ erts_proc_lock_op_debug(proc, need_locks, 1);
+#endif
+ }
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ if (flags & ERTS_P2P_FLG_TRY_LOCK)
+ erts_lcnt_proc_trylock(&proc->lock, need_locks,
+ busy ? EBUSY : 0);
+#endif
+
+ if (!busy) {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(proc);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ /* all is great */
+ if (!(flags & ERTS_P2P_FLG_TRY_LOCK))
+ erts_lcnt_proc_lock_post_x(&proc->lock, lcnt_locks,
+ __FILE__, __LINE__);
+#endif
+
+ }
+ else {
+ if (flags & ERTS_P2P_FLG_TRY_LOCK)
+ proc = ERTS_PROC_LOCK_BUSY;
+ else {
+ int managed;
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(proc);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks);
+#endif
+
+ managed = dhndl == ERTS_THR_PRGR_DHANDLE_MANAGED;
+ if (!managed) {
+ erts_smp_proc_inc_refc(proc);
+ erts_thr_progress_unmanaged_continue(dhndl);
+ dec_refc_proc = proc;
+
+ /*
+ * We don't want to call
+ * erts_thr_progress_unmanaged_continue()
+ * again.
+ */
+ dhndl = ERTS_THR_PRGR_DHANDLE_MANAGED;
+ }
+
+ proc_safelock(managed,
+ c_p,
+ c_p_have_locks,
+ c_p_have_locks,
+ proc,
+ 0,
+ need_locks);
+ }
+ }
+ }
+ }
+
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_thr_progress_unmanaged_continue(dhndl);
+
+ if (need_locks
+ && proc
+ && proc != ERTS_PROC_LOCK_BUSY
+ && (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+ ? ERTS_PROC_IS_EXITING(proc)
+ : (proc
+ != (Process *) erts_ptab_pix2intptr_nob(&erts_proc, pix)))) {
+
+ erts_smp_proc_unlock(proc, need_locks);
+
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ dec_refc_proc = proc;
+ proc = NULL;
+
}
+
+ if (dec_refc_proc)
+ erts_smp_proc_dec_refc(dec_refc_proc);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_DEBUG)
+ ERTS_LC_ASSERT(!proc
+ || proc == ERTS_PROC_LOCK_BUSY
+ || (pid_need_locks ==
+ (ERTS_PROC_LOCK_FLGS_READ_(&proc->lock)
+ & pid_need_locks)));
+#endif
+
+ return proc;
}
void
erts_proc_lock_init(Process *p)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
int i;
/* We always start with all locks locked */
#if ERTS_PROC_LOCK_ATOMIC_IMPL
@@ -890,32 +1012,67 @@ erts_proc_lock_init(Process *p)
#endif
for (i = 0; i <= ERTS_PROC_LOCK_MAX_BIT; i++)
p->lock.queue[i] = NULL;
- p->lock.refc = 1;
-#ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_proc_lock_init(p);
- erts_lcnt_proc_lock(&(p->lock), ERTS_PROC_LOCKS_ALL);
- erts_lcnt_proc_lock_post_x(&(p->lock), ERTS_PROC_LOCKS_ALL, __FILE__, __LINE__);
-#endif
-
#ifdef ERTS_ENABLE_LOCK_CHECK
erts_proc_lc_trylock(p, ERTS_PROC_LOCKS_ALL, 1);
#endif
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_mtx_init_x(&p->lock.main, "proc_main", p->common.id);
+ ethr_mutex_lock(&p->lock.main.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.main.lc);
+#endif
+ erts_mtx_init_x(&p->lock.link, "proc_link", p->common.id);
+ ethr_mutex_lock(&p->lock.link.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.link.lc);
+#endif
+ erts_mtx_init_x(&p->lock.msgq, "proc_msgq", p->common.id);
+ ethr_mutex_lock(&p->lock.msgq.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.msgq.lc);
+#endif
+ erts_mtx_init_x(&p->lock.status, "proc_status", p->common.id);
+ ethr_mutex_lock(&p->lock.status.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.status.lc);
+#endif
+#endif
+ erts_atomic32_init_nob(&p->lock.refc, 1);
#ifdef ERTS_PROC_LOCK_DEBUG
for (i = 0; i <= ERTS_PROC_LOCK_MAX_BIT; i++)
erts_smp_atomic32_init_nob(&p->lock.locked[i], (erts_aint32_t) 1);
#endif
+#ifdef ERTS_ENABLE_LOCK_COUNT
+ erts_lcnt_proc_lock_init(p);
+ erts_lcnt_proc_lock(&(p->lock), ERTS_PROC_LOCKS_ALL);
+ erts_lcnt_proc_lock_post_x(&(p->lock), ERTS_PROC_LOCKS_ALL, __FILE__, __LINE__);
+#endif
+}
+
+void
+erts_proc_lock_fin(Process *p)
+{
+#if ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_mtx_destroy(&p->lock.main);
+ erts_mtx_destroy(&p->lock.link);
+ erts_mtx_destroy(&p->lock.msgq);
+ erts_mtx_destroy(&p->lock.status);
+#endif
+#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
+ erts_lcnt_proc_lock_destroy(p);
+#endif
}
/* --- Process lock counting ----------------------------------------------- */
-#ifdef ERTS_ENABLE_LOCK_COUNT
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
void erts_lcnt_proc_lock_init(Process *p) {
if (erts_lcnt_rt_options & ERTS_LCNT_OPT_PROCLOCK) {
- if (p->id != ERTS_INVALID_PID) {
- erts_lcnt_init_lock_x(&(p->lock.lcnt_main), "proc_main", ERTS_LCNT_LT_PROCLOCK, p->id);
- erts_lcnt_init_lock_x(&(p->lock.lcnt_msgq), "proc_msgq", ERTS_LCNT_LT_PROCLOCK, p->id);
- erts_lcnt_init_lock_x(&(p->lock.lcnt_link), "proc_link", ERTS_LCNT_LT_PROCLOCK, p->id);
- erts_lcnt_init_lock_x(&(p->lock.lcnt_status), "proc_status", ERTS_LCNT_LT_PROCLOCK, p->id);
+ if (p->common.id != ERTS_INVALID_PID) {
+ erts_lcnt_init_lock_x(&(p->lock.lcnt_main), "proc_main", ERTS_LCNT_LT_PROCLOCK, p->common.id);
+ erts_lcnt_init_lock_x(&(p->lock.lcnt_msgq), "proc_msgq", ERTS_LCNT_LT_PROCLOCK, p->common.id);
+ erts_lcnt_init_lock_x(&(p->lock.lcnt_link), "proc_link", ERTS_LCNT_LT_PROCLOCK, p->common.id);
+ erts_lcnt_init_lock_x(&(p->lock.lcnt_status), "proc_status", ERTS_LCNT_LT_PROCLOCK, p->common.id);
} else {
erts_lcnt_init_lock(&(p->lock.lcnt_main), "proc_main", ERTS_LCNT_LT_PROCLOCK);
erts_lcnt_init_lock(&(p->lock.lcnt_msgq), "proc_msgq", ERTS_LCNT_LT_PROCLOCK);
@@ -1023,11 +1180,12 @@ void erts_lcnt_proc_trylock(erts_proc_lock_t *lock, ErtsProcLocks locks, int res
}
-void erts_lcnt_enable_proc_lock_count(int enable) {
- int i;
+void erts_lcnt_enable_proc_lock_count(int enable)
+{
+ int i, max = erts_ptab_max(&erts_proc);
- for (i = 0; i < erts_max_processes; ++i) {
- Process* p = process_tab[i];
+ for (i = 0; i < max; ++i) {
+ Process* p = erts_pix2proc(i);
if (p) {
if (enable) {
if (!ERTS_LCNT_LOCK_TYPE(&(p->lock.lcnt_main))) {
@@ -1049,11 +1207,13 @@ void erts_lcnt_enable_proc_lock_count(int enable) {
#ifdef ERTS_ENABLE_LOCK_CHECK
+#if ERTS_PROC_LOCK_OWN_IMPL
+
void
erts_proc_lc_lock(Process *p, ErtsProcLocks locks)
{
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_MAIN) {
lck.id = lc_id.proc_lock_main;
@@ -1077,7 +1237,7 @@ void
erts_proc_lc_trylock(Process *p, ErtsProcLocks locks, int locked)
{
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_MAIN) {
lck.id = lc_id.proc_lock_main;
@@ -1101,7 +1261,7 @@ void
erts_proc_lc_unlock(Process *p, ErtsProcLocks locks)
{
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_STATUS) {
lck.id = lc_id.proc_lock_status;
@@ -1121,11 +1281,14 @@ erts_proc_lc_unlock(Process *p, ErtsProcLocks locks)
}
}
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
void
erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_STATUS) {
lck.id = lc_id.proc_lock_status;
@@ -1143,13 +1306,24 @@ erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks)
lck.id = lc_id.proc_lock_main;
erts_lc_might_unlock(&lck);
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_lc_might_unlock(&p->lock.main.lc);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_lc_might_unlock(&p->lock.link.lc);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_lc_might_unlock(&p->lock.msgq.lc);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_lc_might_unlock(&p->lock.status.lc);
+#endif
}
void
erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_MAIN) {
lck.id = lc_id.proc_lock_main;
@@ -1167,13 +1341,24 @@ erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks)
lck.id = lc_id.proc_lock_status;
erts_lc_require_lock(&lck);
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_lc_require_lock(&p->lock.main.lc);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_lc_require_lock(&p->lock.link.lc);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_lc_require_lock(&p->lock.msgq.lc);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_lc_require_lock(&p->lock.status.lc);
+#endif
}
void
erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_STATUS) {
lck.id = lc_id.proc_lock_status;
@@ -1191,15 +1376,26 @@ erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks)
lck.id = lc_id.proc_lock_main;
erts_lc_unrequire_lock(&lck);
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_lc_unrequire_lock(&p->lock.main.lc);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_lc_unrequire_lock(&p->lock.link.lc);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_lc_unrequire_lock(&p->lock.msgq.lc);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_lc_unrequire_lock(&p->lock.status.lc);
+#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
int
erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks)
{
if (locks & ERTS_PROC_LOCKS_ALL) {
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
if (locks & ERTS_PROC_LOCK_MAIN)
@@ -1218,42 +1414,61 @@ erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks)
return 0;
}
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
void erts_proc_lc_chk_only_proc_main(Process *p)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t proc_main = ERTS_LC_LOCK_INIT(lc_id.proc_lock_main,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK);
erts_lc_check_exact(&proc_main, 1);
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_check_exact(&p->lock.main.lc, 1);
+#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
#define ERTS_PROC_LC_EMPTY_LOCK_INIT \
ERTS_LC_LOCK_INIT(-1, THE_NON_VALUE, ERTS_LC_FLG_LT_PROCLOCK)
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
void
erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks)
{
int have_locks_len = 0;
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT};
if (locks & ERTS_PROC_LOCK_MAIN) {
have_locks[have_locks_len].id = lc_id.proc_lock_main;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
if (locks & ERTS_PROC_LOCK_LINK) {
have_locks[have_locks_len].id = lc_id.proc_lock_link;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
if (locks & ERTS_PROC_LOCK_MSGQ) {
have_locks[have_locks_len].id = lc_id.proc_lock_msgq;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
if (locks & ERTS_PROC_LOCK_STATUS) {
have_locks[have_locks_len].id = lc_id.proc_lock_status;
- have_locks[have_locks_len++].extra = p->id;
- }
-
+ have_locks[have_locks_len++].extra = p->common.id;
+ }
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_lock_t have_locks[4];
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ have_locks[have_locks_len++] = p->lock.main.lc;
+ if (locks & ERTS_PROC_LOCK_LINK)
+ have_locks[have_locks_len++] = p->lock.link.lc;
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ have_locks[have_locks_len++] = p->lock.msgq.lc;
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ have_locks[have_locks_len++] = p->lock.status.lc;
+#endif
erts_lc_check(have_locks, have_locks_len, NULL, 0);
}
@@ -1262,6 +1477,7 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
{
int have_locks_len = 0;
int have_not_locks_len = 0;
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
@@ -1273,36 +1489,57 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
if (locks & ERTS_PROC_LOCK_MAIN) {
have_locks[have_locks_len].id = lc_id.proc_lock_main;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
else {
have_not_locks[have_not_locks_len].id = lc_id.proc_lock_main;
- have_not_locks[have_not_locks_len++].extra = p->id;
+ have_not_locks[have_not_locks_len++].extra = p->common.id;
}
if (locks & ERTS_PROC_LOCK_LINK) {
have_locks[have_locks_len].id = lc_id.proc_lock_link;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
else {
have_not_locks[have_not_locks_len].id = lc_id.proc_lock_link;
- have_not_locks[have_not_locks_len++].extra = p->id;
+ have_not_locks[have_not_locks_len++].extra = p->common.id;
}
if (locks & ERTS_PROC_LOCK_MSGQ) {
have_locks[have_locks_len].id = lc_id.proc_lock_msgq;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
else {
have_not_locks[have_not_locks_len].id = lc_id.proc_lock_msgq;
- have_not_locks[have_not_locks_len++].extra = p->id;
+ have_not_locks[have_not_locks_len++].extra = p->common.id;
}
if (locks & ERTS_PROC_LOCK_STATUS) {
have_locks[have_locks_len].id = lc_id.proc_lock_status;
- have_locks[have_locks_len++].extra = p->id;
+ have_locks[have_locks_len++].extra = p->common.id;
}
else {
have_not_locks[have_not_locks_len].id = lc_id.proc_lock_status;
- have_not_locks[have_not_locks_len++].extra = p->id;
+ have_not_locks[have_not_locks_len++].extra = p->common.id;
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_lock_t have_locks[4];
+ erts_lc_lock_t have_not_locks[4];
+
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ have_locks[have_locks_len++] = p->lock.main.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.main.lc;
+ if (locks & ERTS_PROC_LOCK_LINK)
+ have_locks[have_locks_len++] = p->lock.link.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.link.lc;
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ have_locks[have_locks_len++] = p->lock.msgq.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.msgq.lc;
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ have_locks[have_locks_len++] = p->lock.status.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.status.lc;
+#endif
erts_lc_check(have_locks, have_locks_len,
have_not_locks, have_not_locks_len);
@@ -1312,20 +1549,26 @@ ErtsProcLocks
erts_proc_lc_my_proc_locks(Process *p)
{
int resv[4];
+ ErtsProcLocks res = 0;
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t locks[4] = {ERTS_LC_LOCK_INIT(lc_id.proc_lock_main,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK),
ERTS_LC_LOCK_INIT(lc_id.proc_lock_link,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK),
ERTS_LC_LOCK_INIT(lc_id.proc_lock_msgq,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK),
ERTS_LC_LOCK_INIT(lc_id.proc_lock_status,
- p->id,
+ p->common.id,
ERTS_LC_FLG_LT_PROCLOCK)};
-
- ErtsProcLocks res = 0;
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_lock_t locks[4] = {p->lock.main.lc,
+ p->lock.link.lc,
+ p->lock.msgq.lc,
+ p->lock.status.lc};
+#endif
erts_lc_have_locks(resv, locks, 4);
if (resv[0])
@@ -1358,7 +1601,7 @@ erts_proc_lc_chk_no_proc_locks(char *file, int line)
#endif /* #ifdef ERTS_ENABLE_LOCK_CHECK */
-#ifdef ERTS_PROC_LOCK_HARD_DEBUG
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_HARD_DEBUG)
void
check_queue(erts_proc_lock_t *lck)
{
@@ -1391,4 +1634,4 @@ check_queue(erts_proc_lock_t *lck)
}
#endif
-#endif /* ERTS_SMP (the whole file) */
+#endif /* ERTS_SMP */
diff --git a/erts/emulator/beam/erl_process_lock.h b/erts/emulator/beam/erl_process_lock.h
index 062b8366d3..9dd503f3cb 100644
--- a/erts/emulator/beam/erl_process_lock.h
+++ b/erts/emulator/beam/erl_process_lock.h
@@ -37,10 +37,21 @@
#include "erl_smp.h"
+#if defined(VALGRIND) || defined(ETHR_DISABLE_NATIVE_IMPLS)
+# define ERTS_PROC_LOCK_OWN_IMPL 0
+#else
+# define ERTS_PROC_LOCK_OWN_IMPL 1
+#endif
+
#define ERTS_PROC_LOCK_ATOMIC_IMPL 0
#define ERTS_PROC_LOCK_SPINLOCK_IMPL 0
#define ERTS_PROC_LOCK_MUTEX_IMPL 0
+#if !ERTS_PROC_LOCK_OWN_IMPL
+#define ERTS_PROC_LOCK_RAW_MUTEX_IMPL 1
+#else
+#define ERTS_PROC_LOCK_RAW_MUTEX_IMPL 0
+
#if defined(ETHR_HAVE_32BIT_NATIVE_ATOMIC_OPS)
# undef ERTS_PROC_LOCK_ATOMIC_IMPL
# define ERTS_PROC_LOCK_ATOMIC_IMPL 1
@@ -52,27 +63,38 @@
# define ERTS_PROC_LOCK_MUTEX_IMPL 1
#endif
+#endif
+
#define ERTS_PROC_LOCK_MAX_BIT 3
typedef erts_aint32_t ErtsProcLocks;
typedef struct erts_proc_lock_t_ {
+#if ERTS_PROC_LOCK_OWN_IMPL
#if ERTS_PROC_LOCK_ATOMIC_IMPL
erts_smp_atomic32_t flags;
#else
ErtsProcLocks flags;
#endif
erts_tse_t *queue[ERTS_PROC_LOCK_MAX_BIT+1];
- Sint32 refc;
-#ifdef ERTS_PROC_LOCK_DEBUG
- erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1];
-#endif
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_lcnt_lock_t lcnt_main;
erts_lcnt_lock_t lcnt_link;
erts_lcnt_lock_t lcnt_msgq;
erts_lcnt_lock_t lcnt_status;
#endif
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_mtx_t main;
+ erts_mtx_t link;
+ erts_mtx_t msgq;
+ erts_mtx_t status;
+#else
+# error "no implementation"
+#endif
+ erts_atomic32_t refc;
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1];
+#endif
} erts_proc_lock_t;
/* Process lock flags */
@@ -105,11 +127,9 @@ typedef struct erts_proc_lock_t_ {
/*
* Status lock:
* Protects the following fields in the process structure:
- * * status
- * * rstatus
- * * status_flags
* * pending_suspenders
* * suspendee
+ * * ...
*/
#define ERTS_PROC_LOCK_STATUS (((ErtsProcLocks) 1) << ERTS_PROC_LOCK_MAX_BIT)
@@ -141,14 +161,11 @@ typedef struct erts_proc_lock_t_ {
* Other rules regarding process locking:
*
* Exiting processes:
- * When changing status to P_EXITING on a process, you are required
- * to take all process locks (ERTS_PROC_LOCKS_ALL). Thus, by holding
- * at least one process lock (whichever one doesn't matter) you
- * are guaranteed that the process won't exit until the lock you are
- * holding has been released. Appart from all process locks also
- * the pix lock corresponding to the process has to be held.
- * At the same time as status is changed to P_EXITING, also the
- * field 'is_exiting' in the process structure is set to a value != 0.
+ * When changing state to exiting (ERTS_PSFLG_EXITING) on a process,
+ * you are required to take all process locks (ERTS_PROC_LOCKS_ALL).
+ * Thus, by holding at least one process lock (whichever one doesn't
+ * matter) you are guaranteed that the process won't exit until the
+ * lock you are holding has been released.
*
* Lock order:
* Process locks with low numeric values has to be locked before
@@ -159,8 +176,8 @@ typedef struct erts_proc_lock_t_ {
* on multiple processes, locks on processes with low process ids
* have to be locked before locks on processes with high process
* ids. E.g., if the main and the message queue locks are to be
- * locked on processes p1 and p2 and p1->id < p2->id, then locks
- * should be locked in the following order:
+ * locked on processes p1 and p2 and p1->common.id < p2->common.id,
+ * then locks should be locked in the following order:
* 1. main lock on p1
* 2. main lock on p2
* 3. message queue lock on p1
@@ -186,7 +203,7 @@ typedef struct erts_proc_lock_t_ {
& ~ERTS_PROC_LOCK_MAIN)
-#define ERTS_PIX_LOCKS_BITS 8
+#define ERTS_PIX_LOCKS_BITS 10
#define ERTS_NO_OF_PIX_LOCKS (1 << ERTS_PIX_LOCKS_BITS)
@@ -260,12 +277,10 @@ typedef struct {
} u;
} erts_pix_lock_t;
-#define ERTS_PIX2PIXLOCKIX(PIX) \
- ((PIX) & ((1 << ERTS_PIX_LOCKS_BITS) - 1))
-#define ERTS_PIX2PIXLOCK(PIX) \
- (&erts_pix_locks[ERTS_PIX2PIXLOCKIX((PIX))])
#define ERTS_PID2PIXLOCK(PID) \
- ERTS_PIX2PIXLOCK(internal_pid_data((PID)))
+ (&erts_pix_locks[(internal_pid_data((PID)) & ((1 << ERTS_PIX_LOCKS_BITS) - 1))])
+
+#if ERTS_PROC_LOCK_OWN_IMPL
#if ERTS_PROC_LOCK_ATOMIC_IMPL
@@ -335,11 +350,13 @@ erts_proc_lock_flags_cmpxchg(erts_proc_lock_t *lck, ErtsProcLocks new,
#define ERTS_PROC_LOCK_FLGS_READ_(L) ((L)->flags)
#endif /* end no opt atomic ops */
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
extern erts_pix_lock_t erts_pix_locks[ERTS_NO_OF_PIX_LOCKS];
void erts_init_proc_lock(int cpus);
void erts_proc_lock_prepare_proc_lock_waiter(void);
+#if ERTS_PROC_LOCK_OWN_IMPL
void erts_proc_lock_failed(Process *,
erts_pix_lock_t *,
ErtsProcLocks,
@@ -347,6 +364,7 @@ void erts_proc_lock_failed(Process *,
void erts_proc_unlock_failed(Process *,
erts_pix_lock_t *,
ErtsProcLocks);
+#endif
ERTS_GLB_INLINE void erts_pix_lock(erts_pix_lock_t *);
ERTS_GLB_INLINE void erts_pix_unlock(erts_pix_lock_t *);
@@ -410,6 +428,7 @@ ERTS_GLB_INLINE int erts_lc_pix_lock_is_locked(erts_pix_lock_t *pixlck)
ERTS_GLB_INLINE ErtsProcLocks
erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
ErtsProcLocks expct_lflgs = 0;
while (1) {
@@ -429,8 +448,38 @@ erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks)
/* cmpxchg failed, try again (should be rare). */
expct_lflgs = lflgs;
}
-}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ if (erts_mtx_trylock(&p->lock.main) == EBUSY)
+ goto busy_main;
+ if (locks & ERTS_PROC_LOCK_LINK)
+ if (erts_mtx_trylock(&p->lock.link) == EBUSY)
+ goto busy_link;
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ if (erts_mtx_trylock(&p->lock.msgq) == EBUSY)
+ goto busy_msgq;
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ if (erts_mtx_trylock(&p->lock.status) == EBUSY)
+ goto busy_status;
+
+ return 0;
+
+busy_status:
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_mtx_unlock(&p->lock.msgq);
+busy_msgq:
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_mtx_unlock(&p->lock.link);
+busy_link:
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_mtx_unlock(&p->lock.main);
+busy_main:
+
+ return EBUSY;
+#endif
+}
ERTS_GLB_INLINE void
#ifdef ERTS_ENABLE_LOCK_COUNT
@@ -444,10 +493,13 @@ erts_smp_proc_lock__(Process *p,
ErtsProcLocks locks)
#endif
{
+#if ERTS_PROC_LOCK_OWN_IMPL
+
ErtsProcLocks old_lflgs;
#if !ERTS_PROC_LOCK_ATOMIC_IMPL
erts_pix_lock(pix_lck);
#endif
+
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_lcnt_proc_lock(&(p->lock), locks);
#endif
@@ -471,12 +523,14 @@ erts_smp_proc_lock__(Process *p,
erts_pix_unlock(pix_lck);
}
#endif
+
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_lcnt_proc_lock_post_x(&(p->lock), locks, file, line);
#endif
#ifdef ERTS_ENABLE_LOCK_CHECK
erts_proc_lc_lock(p, locks);
#endif
+
#ifdef ERTS_PROC_LOCK_DEBUG
erts_proc_lock_op_debug(p, locks, 1);
#endif
@@ -484,6 +538,22 @@ erts_smp_proc_lock__(Process *p,
#if ERTS_PROC_LOCK_ATOMIC_IMPL
ETHR_COMPILER_BARRIER;
#endif
+
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_mtx_lock(&p->lock.main);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_mtx_lock(&p->lock.link);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_mtx_lock(&p->lock.msgq);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_mtx_lock(&p->lock.status);
+
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_proc_lock_op_debug(p, locks, 1);
+#endif
+
+#endif
}
ERTS_GLB_INLINE void
@@ -491,6 +561,7 @@ erts_smp_proc_unlock__(Process *p,
erts_pix_lock_t *pix_lck,
ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
ErtsProcLocks old_lflgs;
#if ERTS_PROC_LOCK_ATOMIC_IMPL
@@ -555,6 +626,23 @@ erts_smp_proc_unlock__(Process *p,
break;
}
+
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_proc_lock_op_debug(p, locks, 0);
+#endif
+
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_mtx_unlock(&p->lock.status);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_mtx_unlock(&p->lock.msgq);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_mtx_unlock(&p->lock.link);
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_mtx_unlock(&p->lock.main);
+#endif
+
}
ERTS_GLB_INLINE int
@@ -562,6 +650,7 @@ erts_smp_proc_trylock__(Process *p,
erts_pix_lock_t *pix_lck,
ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
int res;
#ifdef ERTS_ENABLE_LOCK_CHECK
@@ -573,6 +662,7 @@ erts_smp_proc_trylock__(Process *p,
else
#endif
{
+
#if !ERTS_PROC_LOCK_ATOMIC_IMPL
erts_pix_lock(pix_lck);
#endif
@@ -611,8 +701,18 @@ erts_smp_proc_trylock__(Process *p,
#if ERTS_PROC_LOCK_ATOMIC_IMPL
ETHR_COMPILER_BARRIER;
#endif
-
return res;
+
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (erts_smp_proc_raw_trylock__(p, locks) != 0)
+ return EBUSY;
+ else {
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_proc_lock_op_debug(p, locks, 1);
+#endif
+ return 0;
+ }
+#endif
}
#ifdef ERTS_PROC_LOCK_DEBUG
@@ -667,7 +767,7 @@ erts_smp_proc_lock(Process *p, ErtsProcLocks locks)
#if ERTS_PROC_LOCK_ATOMIC_IMPL
NULL,
#else
- ERTS_PID2PIXLOCK(p->id),
+ ERTS_PID2PIXLOCK(p->common.id),
#endif /*ERTS_PROC_LOCK_ATOMIC_IMPL*/
locks, file, line);
#elif defined(ERTS_SMP)
@@ -675,7 +775,7 @@ erts_smp_proc_lock(Process *p, ErtsProcLocks locks)
#if ERTS_PROC_LOCK_ATOMIC_IMPL
NULL,
#else
- ERTS_PID2PIXLOCK(p->id),
+ ERTS_PID2PIXLOCK(p->common.id),
#endif /*ERTS_PROC_LOCK_ATOMIC_IMPL*/
locks);
#endif /*ERTS_SMP*/
@@ -689,7 +789,7 @@ erts_smp_proc_unlock(Process *p, ErtsProcLocks locks)
#if ERTS_PROC_LOCK_ATOMIC_IMPL
NULL,
#else
- ERTS_PID2PIXLOCK(p->id),
+ ERTS_PID2PIXLOCK(p->common.id),
#endif
locks);
#endif
@@ -705,50 +805,34 @@ erts_smp_proc_trylock(Process *p, ErtsProcLocks locks)
#if ERTS_PROC_LOCK_ATOMIC_IMPL
NULL,
#else
- ERTS_PID2PIXLOCK(p->id),
+ ERTS_PID2PIXLOCK(p->common.id),
#endif
locks);
#endif
}
-
ERTS_GLB_INLINE void erts_smp_proc_inc_refc(Process *p)
{
#ifdef ERTS_SMP
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- p->lock.refc++;
- erts_pix_unlock(pixlck);
+ erts_ptab_inc_refc(&p->common);
#endif
}
ERTS_GLB_INLINE void erts_smp_proc_dec_refc(Process *p)
{
#ifdef ERTS_SMP
- Process *fp;
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- fp = --p->lock.refc == 0 ? p : NULL;
- erts_pix_unlock(pixlck);
- if (fp)
- erts_free_proc(fp);
+ int referred = erts_ptab_dec_test_refc(&p->common);
+ if (!referred)
+ erts_free_proc(p);
#endif
}
-ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 refc)
+ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 add_refc)
{
#ifdef ERTS_SMP
- Process *fp;
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- p->lock.refc += refc;
- fp = p->lock.refc == 0 ? p : NULL;
- erts_pix_unlock(pixlck);
- if (fp)
- erts_free_proc(fp);
+ int referred = erts_ptab_add_test_refc(&p->common, add_refc);
+ if (!referred)
+ erts_free_proc(p);
#endif
}
@@ -756,6 +840,7 @@ ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 refc)
#ifdef ERTS_SMP
void erts_proc_lock_init(Process *);
+void erts_proc_lock_fin(Process *);
void erts_proc_safelock(Process *a_proc,
ErtsProcLocks a_have_locks,
ErtsProcLocks a_need_locks,
@@ -782,217 +867,71 @@ void erts_proc_safelock(Process *a_proc,
#define ERTS_P2P_FLG_TRY_LOCK (1 << 1)
#define ERTS_P2P_FLG_SMP_INC_REFC (1 << 2)
-#define ERTS_PROC_LOCK_BUSY ((Process *) &erts_proc_lock_busy)
-extern const Process erts_proc_lock_busy;
+#define ERTS_PROC_LOCK_BUSY ((Process *) &erts_invalid_process)
#define erts_pid2proc(PROC, HL, PID, NL) \
erts_pid2proc_opt((PROC), (HL), (PID), (NL), 0)
-ERTS_GLB_INLINE Process *
-erts_pid2proc_opt(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int);
-#ifdef ERTS_SMP
-void
-erts_pid2proc_safelock(Process *c_p,
- ErtsProcLocks c_p_have_locks,
- Process **proc,
- ErtsProcLocks need_locks,
- erts_pix_lock_t *pix_lock,
- int flags);
-ERTS_GLB_INLINE Process *erts_pid2proc_unlocked_opt(Eterm pid, int flags);
-#define erts_pid2proc_unlocked(PID) erts_pid2proc_unlocked_opt((PID), 0)
-#else
-#define erts_pid2proc_unlocked_opt(PID, FLGS) \
- erts_pid2proc_opt(NULL, 0, (PID), 0, FLGS)
-#define erts_pid2proc_unlocked(PID) erts_pid2proc_opt(NULL, 0, (PID), 0, 0)
+ERTS_GLB_INLINE Process *erts_pix2proc(int ix);
+ERTS_GLB_INLINE Process *erts_proc_lookup_raw(Eterm pid);
+ERTS_GLB_INLINE Process *erts_proc_lookup(Eterm pid);
+
+#ifndef ERTS_SMP
+ERTS_GLB_INLINE
#endif
+Process *erts_pid2proc_opt(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-ERTS_GLB_INLINE Process *
-#ifdef ERTS_SMP
-erts_pid2proc_unlocked_opt(Eterm pid, int flags)
-#else
-erts_pid2proc_opt(Process *c_p_unused,
- ErtsProcLocks c_p_have_locks_unused,
- Eterm pid,
- ErtsProcLocks pid_need_locks_unused,
- int flags)
-#endif
+ERTS_GLB_INLINE Process *erts_pix2proc(int ix)
{
- Uint pix;
Process *proc;
+ ASSERT(0 <= ix && ix < erts_ptab_max(&erts_proc));
+ proc = (Process *) erts_ptab_pix2intptr_nob(&erts_proc, ix);
+ return proc == ERTS_PROC_LOCK_BUSY ? NULL : proc;
+}
+
+ERTS_GLB_INLINE Process *erts_proc_lookup_raw(Eterm pid)
+{
+ Process *proc;
+
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_lc_is_delaying());
if (is_not_internal_pid(pid))
return NULL;
- pix = internal_pid_index(pid);
- if(pix >= erts_max_processes)
+
+ proc = (Process *) erts_ptab_pix2intptr_ddrb(&erts_proc,
+ internal_pid_index(pid));
+ if (proc && proc->common.id != pid)
return NULL;
- proc = process_tab[pix];
- if (proc) {
- if (proc->id != pid
- || (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- && proc->status == P_EXITING))
- proc = NULL;
- }
return proc;
}
-#ifdef ERTS_SMP
+ERTS_GLB_INLINE Process *erts_proc_lookup(Eterm pid)
+{
+ Process *proc = erts_proc_lookup_raw(pid);
+ if (proc && ERTS_PROC_IS_EXITING(proc))
+ return NULL;
+ return proc;
+}
+#ifndef ERTS_SMP
ERTS_GLB_INLINE Process *
-erts_pid2proc_opt(Process *c_p,
- ErtsProcLocks c_p_have_locks,
+erts_pid2proc_opt(Process *c_p_unused,
+ ErtsProcLocks c_p_have_locks_unused,
Eterm pid,
- ErtsProcLocks pid_need_locks,
+ ErtsProcLocks pid_need_locks_unused,
int flags)
{
- erts_pix_lock_t *pix_lock;
- ErtsProcLocks need_locks;
- Uint pix;
- Process *proc;
-#ifdef ERTS_ENABLE_LOCK_COUNT
- ErtsProcLocks lcnt_locks;
-#endif
-
-#ifdef ERTS_ENABLE_LOCK_CHECK
- if (c_p) {
- ErtsProcLocks might_unlock = c_p_have_locks & pid_need_locks;
- if (might_unlock)
- erts_proc_lc_might_unlock(c_p, might_unlock);
- }
-#endif
- if (is_not_internal_pid(pid)) {
- proc = NULL;
- goto done;
- }
- pix = internal_pid_index(pid);
- if(pix >= erts_max_processes) {
- proc = NULL;
- goto done;
- }
-
- ERTS_LC_ASSERT((pid_need_locks & ERTS_PROC_LOCKS_ALL) == pid_need_locks);
- need_locks = pid_need_locks;
-
- pix_lock = ERTS_PIX2PIXLOCK(pix);
-
- if (c_p && c_p->id == pid) {
- ASSERT(c_p->id != ERTS_INVALID_PID);
- ASSERT(c_p == process_tab[pix]);
- if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) && c_p->is_exiting) {
- proc = NULL;
- goto done;
- }
- need_locks &= ~c_p_have_locks;
- if (!need_locks) {
- proc = c_p;
- erts_pix_lock(pix_lock);
- if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
- proc->lock.refc++;
- erts_pix_unlock(pix_lock);
- goto done;
- }
- }
-
- erts_pix_lock(pix_lock);
-
- proc = process_tab[pix];
- if (proc) {
- if (proc->id != pid || (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- && ERTS_PROC_IS_EXITING(proc))) {
- proc = NULL;
- }
- else if (!need_locks) {
- if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
- proc->lock.refc++;
- }
- else {
- int busy;
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
- lcnt_locks = need_locks;
- if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) {
- erts_lcnt_proc_lock(&proc->lock, need_locks);
- }
-#endif
-
-#ifdef ERTS_ENABLE_LOCK_CHECK
- /* Make sure erts_pid2proc_safelock() is enough to handle
- a potential lock order violation situation... */
- busy = erts_proc_lc_trylock_force_busy(proc, need_locks);
- if (!busy)
-#endif
- {
- /* Try a quick trylock to grab all the locks we need. */
- busy = (int) erts_smp_proc_raw_trylock__(proc, need_locks);
-#ifdef ERTS_ENABLE_LOCK_CHECK
- erts_proc_lc_trylock(proc, need_locks, !busy);
-#endif
-#ifdef ERTS_PROC_LOCK_DEBUG
- if (!busy)
- erts_proc_lock_op_debug(proc, need_locks, 1);
-#endif
- }
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
- if (flags & ERTS_P2P_FLG_TRY_LOCK) {
- if (busy) {
- erts_lcnt_proc_trylock(&proc->lock, need_locks, EBUSY);
- } else {
- erts_lcnt_proc_trylock(&proc->lock, need_locks, 0);
- }
- }
-#endif
- if (!busy) {
- if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
- proc->lock.refc++;
-#ifdef ERTS_ENABLE_LOCK_COUNT
- /* all is great */
- if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) {
- erts_lcnt_proc_lock_post_x(&proc->lock, lcnt_locks, __FILE__, __LINE__);
- }
-#endif
- }
- else {
- if (flags & ERTS_P2P_FLG_TRY_LOCK)
- proc = ERTS_PROC_LOCK_BUSY;
- else {
-#ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks);
-#endif
- erts_pid2proc_safelock(c_p,
- c_p_have_locks,
- &proc,
- pid_need_locks,
- pix_lock,
- flags);
- if (proc && (flags & ERTS_P2P_FLG_SMP_INC_REFC))
- proc->lock.refc++;
- }
- }
- }
- }
-
- erts_pix_unlock(pix_lock);
-#ifdef ERTS_PROC_LOCK_DEBUG
- ERTS_LC_ASSERT(!proc
- || proc == ERTS_PROC_LOCK_BUSY
- || (pid_need_locks ==
- (ERTS_PROC_LOCK_FLGS_READ_(&proc->lock)
- & pid_need_locks)));
-#endif
-
-
- done:
-
-#if ERTS_PROC_LOCK_ATOMIC_IMPL
- ETHR_COMPILER_BARRIER;
-#endif
-
- return proc;
+ Process *proc = erts_proc_lookup_raw(pid);
+ return ((!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+ && proc
+ && ERTS_PROC_IS_EXITING(proc))
+ ? NULL
+ : proc);
}
-#endif /* ERTS_SMP */
+#endif /* !ERTS_SMP */
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
diff --git a/erts/emulator/beam/erl_ptab.c b/erts/emulator/beam/erl_ptab.c
new file mode 100644
index 0000000000..87beeafa1a
--- /dev/null
+++ b/erts/emulator/beam/erl_ptab.c
@@ -0,0 +1,1566 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+/*
+ * Description: Process/Port table implementation.
+ *
+ * Author: Rickard Green
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#define ERTS_PTAB_WANT_BIF_IMPL__
+#define ERTS_PTAB_WANT_DEBUG_FUNCS__
+#include "erl_ptab.h"
+#include "global.h"
+#include "erl_binary.h"
+
+typedef struct ErtsPTabListBifData_ ErtsPTabListBifData;
+
+#define ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED 25
+#define ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE 1000
+#define ERTS_PTAB_LIST_BIF_MIN_START_REDS \
+ (ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE \
+ / ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED)
+
+#define ERTS_PTAB_LIST_BIF_TAB_FREE_DELETED_REDS 1
+
+#define ERTS_PTAB_LIST_BIF_INSPECT_DELETED_PER_RED 10
+
+#define ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS \
+ (ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE \
+ / ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED)
+
+
+#define ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED 75
+
+#define ERTS_PTAB_LIST_DBG_DO_TRACE 0
+
+#ifdef DEBUG
+# define ERTS_PTAB_LIST_BIF_DEBUGLEVEL 100
+#else
+# define ERTS_PTAB_LIST_BIF_DEBUGLEVEL 0
+#endif
+
+#define ERTS_PTAB_LIST_DBGLVL_CHK_HALLOC 1
+#define ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS 5
+#define ERTS_PTAB_LIST_DBGLVL_CHK_PIDS 10
+#define ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST 20
+#define ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST 20
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL == 0
+# define ERTS_PTAB_LIST_ASSERT(EXP)
+#else
+# define ERTS_PTAB_LIST_ASSERT(EXP) \
+ ((void) ((EXP) \
+ ? 1 \
+ : (debug_ptab_list_assert_error(#EXP, \
+ __FILE__, \
+ __LINE__, \
+ __func__), \
+ 0)))
+#endif
+
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_HALLOC
+# define ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(PTLBDP, HP, SZ) \
+do { \
+ ERTS_PTAB_LIST_ASSERT(!(PTLBDP)->debug.heap); \
+ ERTS_PTAB_LIST_ASSERT(!(PTLBDP)->debug.heap_size); \
+ (PTLBDP)->debug.heap = (HP); \
+ (PTLBDP)->debug.heap_size = (SZ); \
+} while (0)
+# define ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(PTLBDP, HP) \
+do { \
+ ERTS_PTAB_LIST_ASSERT((PTLBDP)->debug.heap); \
+ ERTS_PTAB_LIST_ASSERT((PTLBDP)->debug.heap_size); \
+ ERTS_PTAB_LIST_ASSERT(((PTLBDP)->debug.heap \
+ + (PTLBDP)->debug.heap_size) \
+ == (HP)); \
+ (PTLBDP)->debug.heap = NULL; \
+ (PTLBDP)->debug.heap_size = 0; \
+} while (0)
+# define ERTS_PTAB_LIST_DBG_HEAP_ALLOC_INIT(PTLBDP) \
+do { \
+ (PTLBDP)->debug.heap = NULL; \
+ (PTLBDP)->debug.heap_size = 0; \
+} while (0)
+#else
+# define ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(PTLBDP, HP, SZ)
+# define ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(PTLBDP, HP)
+# define ERTS_PTAB_LIST_DBG_HEAP_ALLOC_INIT(PTLBDP)
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST
+# define ERTS_PTAB_LIST_DBG_CHK_RESLIST(R) \
+ debug_ptab_list_check_res_list((R))
+#else
+# define ERTS_PTAB_LIST_DBG_CHK_RESLIST(R)
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS
+# define ERTS_PTAB_LIST_DBG_SAVE_PIDS(PTLBDP) \
+ debug_ptab_list_save_all_pids((PTLBDP))
+# define ERTS_PTAB_LIST_DBG_VERIFY_PIDS(PTLBDP) \
+do { \
+ if (!(PTLBDP)->debug.correct_pids_verified) \
+ debug_ptab_list_verify_all_pids((PTLBDP)); \
+} while (0)
+# define ERTS_PTAB_LIST_DBG_CLEANUP_CHK_PIDS(PTLBDP) \
+do { \
+ if ((PTLBDP)->debug.correct_pids) { \
+ erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, \
+ (PTLBDP)->debug.correct_pids); \
+ (PTLBDP)->debug.correct_pids = NULL; \
+ } \
+} while(0)
+# define ERTS_PTAB_LIST_DBG_CHK_PIDS_INIT(PTLBDP) \
+do { \
+ (PTLBDP)->debug.correct_pids_verified = 0; \
+ (PTLBDP)->debug.correct_pids = NULL; \
+} while (0)
+#else
+# define ERTS_PTAB_LIST_DBG_SAVE_PIDS(PTLBDP)
+# define ERTS_PTAB_LIST_DBG_VERIFY_PIDS(PTLBDP)
+# define ERTS_PTAB_LIST_DBG_CLEANUP_CHK_PIDS(PTLBDP)
+# define ERTS_PTAB_LIST_DBG_CHK_PIDS_INIT(PTLBDP)
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+# define ERTS_PTAB_LIST_DBG_CHK_PID_FOUND(PTLBDP, PID, IC) \
+ debug_ptab_list_check_found_pid((PTLBDP), (PID), (IC), 1)
+# define ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND(PTLBDP, PID, IC) \
+ debug_ptab_list_check_found_pid((PTLBDP), (PID), (IC), 0)
+#else
+# define ERTS_PTAB_LIST_DBG_CHK_PID_FOUND(PTLBDP, PID, IC)
+# define ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND(PTLBDP, PID, IC)
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST
+# define ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(PTab) \
+ debug_ptab_list_check_del_list((PTab))
+# define ERTS_PTAB_LIST_DBG_CHK_FREELIST(PTab, FL) \
+ debug_ptab_list_check_del_free_list((PTab), (FL))
+#else
+# define ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(PTab)
+# define ERTS_PTAB_LIST_DBG_CHK_FREELIST(PTab, FL)
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL == 0
+#if ERTS_PTAB_LIST_DBG_DO_TRACE
+# define ERTS_PTAB_LIST_DBG_INIT(P, PTLBDP) \
+ (PTLBDP)->debug.caller = (P)->common.id
+# else
+# define ERTS_PTAB_LIST_DBG_INIT(P, PTLBDP)
+# endif
+# define ERTS_PTAB_LIST_DBG_CLEANUP(PTLBDP)
+#else
+# define ERTS_PTAB_LIST_DBG_INIT(P, PTLBDP) \
+do { \
+ (PTLBDP)->debug.caller = (P)->common.id; \
+ ERTS_PTAB_LIST_DBG_HEAP_ALLOC_INIT((PTLBDP)); \
+ ERTS_PTAB_LIST_DBG_CHK_PIDS_INIT((PTLBDP)); \
+} while (0)
+# define ERTS_PTAB_LIST_DBG_CLEANUP(PTLBDP) \
+do { \
+ ERTS_PTAB_LIST_DBG_CLEANUP_CHK_PIDS((PTLBDP)); \
+} while (0)
+#endif
+
+#if ERTS_PTAB_LIST_DBG_DO_TRACE
+# define ERTS_PTAB_LIST_DBG_TRACE(PID, WHAT) \
+ erts_fprintf(stderr, "%T %s:%d:%s(): %s\n", \
+ (PID), __FILE__, __LINE__, __func__, #WHAT)
+#else
+# define ERTS_PTAB_LIST_DBG_TRACE(PID, WHAT)
+#endif
+
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL != 0
+static void debug_ptab_list_assert_error(char* expr,
+ const char* file,
+ int line,
+ const char *func);
+#endif
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST
+static void debug_ptab_list_check_res_list(Eterm list);
+#endif
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS
+static void debug_ptab_list_save_all_pids(ErtsPTabListBifData *ptlbdp);
+static void debug_ptab_list_verify_all_pids(ErtsPTabListBifData *ptlbdp);
+#endif
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+static void debug_ptab_list_check_found_pid(ErtsPTabListBifData *ptlbdp,
+ Eterm pid,
+ Uint64 ic,
+ int pid_should_be_found);
+#endif
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST
+static void debug_ptab_list_check_del_list(ErtsPTab *ptab);
+static void debug_ptab_list_check_del_free_list(ErtsPTab *ptab,
+ ErtsPTabDeletedElement *ptdep);
+#endif
+
+struct ErtsPTabDeletedElement_ {
+ ErtsPTabDeletedElement *next;
+ ErtsPTabDeletedElement *prev;
+ int ix;
+ union {
+ struct {
+ Eterm id;
+ Uint64 inserted;
+ Uint64 deleted;
+ } element;
+ struct {
+ Uint64 interval;
+ } bif_invocation;
+ } u;
+};
+
+static Export ptab_list_continue_export;
+
+typedef struct {
+ Uint64 interval;
+} ErtsPTabListBifChunkInfo;
+
+typedef enum {
+ INITIALIZING,
+ INSPECTING_TABLE,
+ INSPECTING_DELETED,
+ BUILDING_RESULT,
+ RETURN_RESULT
+} ErtsPTabListBifState;
+
+struct ErtsPTabListBifData_ {
+ ErtsPTab *ptab;
+ ErtsPTabListBifState state;
+ Eterm caller;
+ ErtsPTabListBifChunkInfo *chunk;
+ int tix;
+ int pid_ix;
+ int pid_sz;
+ Eterm *pid;
+ ErtsPTabDeletedElement *bif_invocation; /* Only used when > 1 chunk */
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL != 0 || ERTS_PTAB_LIST_DBG_DO_TRACE
+ struct {
+ Eterm caller;
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+ Uint64 *pid_started;
+#endif
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_HALLOC
+ Eterm *heap;
+ Uint heap_size;
+#endif
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS
+ int correct_pids_verified;
+ Eterm *correct_pids;
+#endif
+ } debug;
+#endif
+
+};
+
+#ifdef ARCH_32
+
+static ERTS_INLINE Uint64
+dw_aint_to_uint64(erts_dw_aint_t *dw)
+{
+#ifdef ETHR_SU_DW_NAINT_T__
+ return (Uint64) dw->dw_sint;
+#else
+ Uint64 res;
+ res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]);
+ res <<= 32;
+ res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]);
+ return res;
+#endif
+}
+
+static void
+unint64_to_dw_aint(erts_dw_aint_t *dw, Uint64 val)
+{
+#ifdef ETHR_SU_DW_NAINT_T__
+ dw->dw_sint = (ETHR_SU_DW_NAINT_T__) val;
+#else
+ dw->sint[ERTS_DW_AINT_LOW_WORD] = (erts_aint_t) (val & 0xffffffff);
+ dw->sint[ERTS_DW_AINT_HIGH_WORD] = (erts_aint_t) ((val >> 32) & 0xffffffff);
+#endif
+}
+
+static ERTS_INLINE void
+last_data_init_nob(ErtsPTab *ptab, Uint64 val)
+{
+ erts_dw_aint_t dw;
+ unint64_to_dw_aint(&dw, val);
+ erts_smp_dw_atomic_init_nob(&ptab->vola.tile.last_data, &dw);
+}
+
+static ERTS_INLINE void
+last_data_set_relb(ErtsPTab *ptab, Uint64 val)
+{
+ erts_dw_aint_t dw;
+ unint64_to_dw_aint(&dw, val);
+ erts_smp_dw_atomic_set_relb(&ptab->vola.tile.last_data, &dw);
+}
+
+static ERTS_INLINE Uint64
+last_data_read_nob(ErtsPTab *ptab)
+{
+ erts_dw_aint_t dw;
+ erts_smp_dw_atomic_read_nob(&ptab->vola.tile.last_data, &dw);
+ return dw_aint_to_uint64(&dw);
+}
+
+static ERTS_INLINE Uint64
+last_data_read_acqb(ErtsPTab *ptab)
+{
+ erts_dw_aint_t dw;
+ erts_smp_dw_atomic_read_acqb(&ptab->vola.tile.last_data, &dw);
+ return dw_aint_to_uint64(&dw);
+}
+
+static ERTS_INLINE Uint64
+last_data_cmpxchg_relb(ErtsPTab *ptab, Uint64 new, Uint64 exp)
+{
+ erts_dw_aint_t dw_new, dw_xchg;
+
+ unint64_to_dw_aint(&dw_new, new);
+ unint64_to_dw_aint(&dw_xchg, exp);
+
+ if (erts_smp_dw_atomic_cmpxchg_relb(&ptab->vola.tile.last_data,
+ &dw_new,
+ &dw_xchg))
+ return exp;
+ else
+ return dw_aint_to_uint64(&dw_xchg);
+}
+
+#elif defined(ARCH_64)
+
+union {
+ erts_smp_atomic_t pid_data;
+ char align[ERTS_CACHE_LINE_SIZE];
+} last erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static ERTS_INLINE void
+last_data_init_nob(ErtsPTab *ptab, Uint64 val)
+{
+ erts_smp_atomic_init_nob(&ptab->vola.tile.last_data, (erts_aint_t) val);
+}
+
+static ERTS_INLINE void
+last_data_set_relb(ErtsPTab *ptab, Uint64 val)
+{
+ erts_smp_atomic_set_relb(&ptab->vola.tile.last_data, (erts_aint_t) val);
+}
+
+static ERTS_INLINE Uint64
+last_data_read_nob(ErtsPTab *ptab)
+{
+ return (Uint64) erts_smp_atomic_read_nob(&ptab->vola.tile.last_data);
+}
+
+static ERTS_INLINE Uint64
+last_data_read_acqb(ErtsPTab *ptab)
+{
+ return (Uint64) erts_smp_atomic_read_acqb(&ptab->vola.tile.last_data);
+}
+
+static ERTS_INLINE Uint64
+last_data_cmpxchg_relb(ErtsPTab *ptab, Uint64 new, Uint64 exp)
+{
+ return (Uint64) erts_smp_atomic_cmpxchg_relb(&ptab->vola.tile.last_data,
+ (erts_aint_t) new,
+ (erts_aint_t) exp);
+}
+
+#else
+# error "Not 64-bit, nor 32-bit architecture..."
+#endif
+
+static ERTS_INLINE int
+last_data_cmp(Uint64 ld1, Uint64 ld2)
+{
+ Uint64 ld1_wrap;
+
+ if (ld1 == ld2)
+ return 0;
+
+ ld1_wrap = ld1 + (((Uint64) 1) << 63);
+
+ if (ld1 < ld1_wrap)
+ return (ld1 < ld2 && ld2 < ld1_wrap) ? -1 : 1;
+ else
+ return (ld1_wrap <= ld2 && ld2 < ld1) ? 1 : -1;
+}
+
+#define ERTS_PTAB_LastData2EtermData(LD) \
+ ((Eterm) ((LD) & ~(~((Uint64) 0) << ERTS_PTAB_ID_DATA_SIZE)))
+
+void
+erts_ptab_init_table(ErtsPTab *ptab,
+ ErtsAlcType_t atype,
+ void (*release_element)(void *),
+ ErtsPTabElementCommon *invalid_element,
+ int size,
+ char *name)
+{
+ size_t tab_sz;
+ int bits;
+ char *tab_end;
+ erts_smp_atomic_t *tab_entry;
+ erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+ rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+ rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+
+ erts_smp_rwmtx_init_opt(&ptab->list.data.rwmtx, &rwmtx_opts, name);
+ erts_smp_atomic32_init_nob(&ptab->vola.tile.count, 0);
+ last_data_init_nob(ptab, ~((Uint64) 0));
+
+ /* A size that is a power of 2 is to prefer performance wise */
+ bits = erts_fit_in_bits_int32(size-1);
+ size = 1 << bits;
+ if (size > ERTS_PTAB_MAX_SIZE) {
+ size = ERTS_PTAB_MAX_SIZE;
+ bits = erts_fit_in_bits_int32((Sint32) size - 1);
+ }
+
+ ptab->r.o.max = size;
+
+ tab_sz = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(size*sizeof(erts_smp_atomic_t));
+ ptab->r.o.tab = erts_alloc_permanent_cache_aligned(atype, tab_sz);
+ tab_end = ((char *) ptab->r.o.tab) + tab_sz;
+ tab_entry = ptab->r.o.tab;
+ while (tab_end > ((char *) tab_entry)) {
+ erts_smp_atomic_init_nob(tab_entry, ERTS_AINT_NULL);
+ tab_entry++;
+ }
+
+ ptab->r.o.tab_cache_lines = tab_sz/ERTS_CACHE_LINE_SIZE;
+ ptab->r.o.pix_per_cache_line = (ERTS_CACHE_LINE_SIZE
+ / sizeof(erts_smp_atomic_t));
+ ASSERT((ptab->r.o.max & (ptab->r.o.max - 1)) == 0); /* power of 2 */
+ ASSERT((ptab->r.o.pix_per_cache_line
+ & (ptab->r.o.pix_per_cache_line - 1)) == 0); /* power of 2 */
+ ASSERT((ptab->r.o.tab_cache_lines
+ & (ptab->r.o.tab_cache_lines - 1)) == 0); /* power of 2 */
+
+ ptab->r.o.pix_mask
+ = (1 << bits) - 1;
+ ptab->r.o.pix_cl_mask
+ = ptab->r.o.tab_cache_lines-1;
+ ptab->r.o.pix_cl_shift
+ = erts_fit_in_bits_int32(ptab->r.o.pix_per_cache_line-1);
+ ptab->r.o.pix_cli_shift
+ = erts_fit_in_bits_int32(ptab->r.o.pix_cl_mask);
+ ptab->r.o.pix_cli_mask
+ = (1 << (bits - ptab->r.o.pix_cli_shift)) - 1;
+
+ ASSERT(ptab->r.o.pix_cl_shift + ptab->r.o.pix_cli_shift == bits);
+
+ ptab->r.o.invalid_element = invalid_element;
+ ptab->r.o.invalid_data = erts_ptab_id2data(ptab, invalid_element->id);
+ ptab->r.o.release_element = release_element;
+
+ erts_smp_interval_init(&ptab->list.data.interval);
+ ptab->list.data.deleted.start = NULL;
+ ptab->list.data.deleted.end = NULL;
+ ptab->list.data.chunks = (((ptab->r.o.max - 1)
+ / ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE)
+ + 1);
+
+ if (size == ERTS_PTAB_MAX_SIZE) {
+ int pix;
+ /*
+ * We want a table size of a power of 2 which ERTS_PTAB_MAX_SIZE
+ * is. We only have ERTS_PTAB_MAX_SIZE-1 unique identifiers and
+ * we don't want to shrink the size to ERTS_PTAB_MAX_SIZE/2.
+ *
+ * In order to fix this, we insert a pointer from the table
+ * to the invalid_element, wich will be interpreted as a
+ * slot currently being modified. This way we will be able to
+ * have ERTS_PTAB_MAX_SIZE-1 valid elements in the table while
+ * still having a table size of the power of 2.
+ */
+ erts_smp_atomic32_inc_nob(&ptab->vola.tile.count);
+ pix = erts_ptab_data2pix(ptab, ptab->r.o.invalid_data);
+ erts_smp_atomic_set_relb(&ptab->r.o.tab[pix],
+ (erts_aint_t) ptab->r.o.invalid_element);
+ }
+
+}
+
+int
+erts_ptab_initialized(ErtsPTab *ptab)
+{
+ return ptab->r.o.tab != NULL;
+}
+
+int
+erts_ptab_new_element(ErtsPTab *ptab,
+ ErtsPTabElementCommon *ptab_el,
+ void *init_arg,
+ void (*init_ptab_el)(void *, Eterm))
+{
+ int pix;
+ Uint64 ld, exp_ld;
+ Eterm data;
+ erts_aint32_t count;
+ erts_aint_t invalid = (erts_aint_t) ptab->r.o.invalid_element;
+
+ erts_ptab_rlock(ptab);
+
+ count = erts_smp_atomic32_inc_read_acqb(&ptab->vola.tile.count);
+ if (count > ptab->r.o.max) {
+ while (1) {
+ erts_aint32_t act_count;
+
+ act_count = erts_smp_atomic32_cmpxchg_relb(&ptab->vola.tile.count,
+ count-1,
+ count);
+ if (act_count == count) {
+ erts_ptab_runlock(ptab);
+ return 0;
+ }
+ count = act_count;
+ if (count <= ptab->r.o.max)
+ break;
+ }
+ }
+
+ ptab_el->u.alive.started_interval
+ = erts_smp_current_interval_nob(erts_ptab_interval(ptab));
+
+ ld = last_data_read_acqb(ptab);
+
+ /* Reserve slot */
+ while (1) {
+ ld++;
+ pix = erts_ptab_data2pix(ptab, ERTS_PTAB_LastData2EtermData(ld));
+ if (erts_smp_atomic_read_nob(&ptab->r.o.tab[pix]) == ERTS_AINT_NULL) {
+ erts_aint_t val;
+ val = erts_smp_atomic_cmpxchg_relb(&ptab->r.o.tab[pix],
+ invalid,
+ ERTS_AINT_NULL);
+
+ if (ERTS_AINT_NULL == val)
+ break;
+ }
+ }
+
+ data = ERTS_PTAB_LastData2EtermData(ld);
+
+ if (data == ptab->r.o.invalid_data) {
+ /* Do not use invalid data; fix it... */
+ ld += ptab->r.o.max;
+ ASSERT(pix == erts_ptab_data2pix(ptab,
+ ERTS_PTAB_LastData2EtermData(ld)));
+ data = ERTS_PTAB_LastData2EtermData(ld);
+ ASSERT(data != ptab->r.o.invalid_data);
+ }
+
+ exp_ld = last_data_read_nob(ptab);
+
+ /* Move last data forward */
+ while (1) {
+ Uint64 act_ld;
+ if (last_data_cmp(ld, exp_ld) < 0)
+ break;
+ act_ld = last_data_cmpxchg_relb(ptab, ld, exp_ld);
+ if (act_ld == exp_ld)
+ break;
+ exp_ld = act_ld;
+ }
+
+ init_ptab_el(init_arg, data);
+
+#ifdef ERTS_SMP
+ erts_smp_atomic32_init_nob(&ptab_el->refc, 1);
+#endif
+
+ /* Move into slot reserved */
+#ifdef DEBUG
+ ASSERT(invalid == erts_smp_atomic_xchg_relb(&ptab->r.o.tab[pix],
+ (erts_aint_t) ptab_el));
+#else
+ erts_smp_atomic_set_relb(&ptab->r.o.tab[pix], (erts_aint_t) ptab_el);
+#endif
+
+ erts_ptab_runlock(ptab);
+
+ return 1;
+}
+
+static void
+save_deleted_element(ErtsPTab *ptab, ErtsPTabElementCommon *ptab_el)
+{
+ ErtsPTabDeletedElement *ptdep = erts_alloc(ERTS_ALC_T_PTAB_LIST_DEL,
+ sizeof(ErtsPTabDeletedElement));
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start
+ && ptab->list.data.deleted.end);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_ptab_is_rwlocked(ptab));
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ ptdep->prev = ptab->list.data.deleted.end;
+ ptdep->next = NULL;
+ ptdep->ix = erts_ptab_id2pix(ptab, ptab_el->id);
+ ptdep->u.element.id = ptab_el->id;
+ ptdep->u.element.inserted = ptab_el->u.alive.started_interval;
+ ptdep->u.element.deleted =
+ erts_smp_current_interval_nob(erts_ptab_interval(ptab));
+
+ ptab->list.data.deleted.end->next = ptdep;
+ ptab->list.data.deleted.end = ptdep;
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ ERTS_PTAB_LIST_ASSERT(ptdep->prev->ix >= 0
+ ? (ptdep->u.element.deleted
+ >= ptdep->prev->u.element.deleted)
+ : (ptdep->u.element.deleted
+ >= ptdep->prev->u.bif_invocation.interval));
+}
+
+void
+erts_ptab_delete_element(ErtsPTab *ptab,
+ ErtsPTabElementCommon *ptab_el)
+{
+ int maybe_save;
+ int pix = erts_ptab_id2pix(ptab, ptab_el->id);
+
+ ASSERT(erts_get_scheduler_id()); /* *Need* to be a scheduler */
+
+ erts_ptab_rlock(ptab);
+ maybe_save = ptab->list.data.deleted.end != NULL;
+ if (maybe_save) {
+ erts_ptab_runlock(ptab);
+ erts_ptab_rwlock(ptab);
+ }
+
+ erts_smp_atomic_set_relb(&ptab->r.o.tab[pix], ERTS_AINT_NULL);
+
+ ASSERT(erts_smp_atomic32_read_nob(&ptab->vola.tile.count) > 0);
+ erts_smp_atomic32_dec_relb(&ptab->vola.tile.count);
+
+ if (!maybe_save)
+ erts_ptab_runlock(ptab);
+ else {
+ if (ptab->list.data.deleted.end)
+ save_deleted_element(ptab, ptab_el);
+ erts_ptab_rwunlock(ptab);
+ }
+
+ if (ptab->r.o.release_element)
+ erts_schedule_thr_prgr_later_op(ptab->r.o.release_element,
+ (void *) ptab_el,
+ &ptab_el->u.release);
+}
+
+/*
+ * erts_ptab_list() implements BIFs listing the content of the table,
+ * e.g. erlang:processes/0.
+ */
+static void cleanup_ptab_list_bif_data(Binary *bp);
+static int ptab_list_bif_engine(Process *c_p, Eterm *res_accp, Binary *mbp);
+
+
+BIF_RETTYPE
+erts_ptab_list(Process *c_p, ErtsPTab *ptab)
+{
+ /*
+ * A requirement: The list of identifiers returned should be a
+ * consistent snapshot of all elements existing
+ * in the table at some point in time during the
+ * execution of the BIF calling this function.
+ * Since elements might be deleted while the BIF
+ * is executing, we have to keep track of all
+ * deleted elements and add them to the result.
+ * We also ignore elements created after the BIF
+ * has begun executing.
+ */
+ BIF_RETTYPE ret_val;
+ Eterm res_acc = NIL;
+ Binary *mbp = erts_create_magic_binary(sizeof(ErtsPTabListBifData),
+ cleanup_ptab_list_bif_data);
+ ErtsPTabListBifData *ptlbdp = ERTS_MAGIC_BIN_DATA(mbp);
+
+ ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, call);
+ ptlbdp->ptab = ptab;
+ ptlbdp->state = INITIALIZING;
+ ERTS_PTAB_LIST_DBG_INIT(c_p, ptlbdp);
+
+ if (ERTS_BIF_REDS_LEFT(c_p) >= ERTS_PTAB_LIST_BIF_MIN_START_REDS
+ && ptab_list_bif_engine(c_p, &res_acc, mbp)) {
+ erts_bin_free(mbp);
+ ERTS_PTAB_LIST_DBG_CHK_RESLIST(res_acc);
+ ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, return);
+ ERTS_BIF_PREP_RET(ret_val, res_acc);
+ }
+ else {
+ Eterm *hp;
+ Eterm magic_bin;
+ ERTS_PTAB_LIST_DBG_CHK_RESLIST(res_acc);
+ hp = HAlloc(c_p, PROC_BIN_SIZE);
+ ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(ptlbdp, hp, PROC_BIN_SIZE);
+ magic_bin = erts_mk_magic_binary_term(&hp, &MSO(c_p), mbp);
+ ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(ptlbdp, hp);
+ ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, trap);
+ ERTS_BIF_PREP_YIELD2(ret_val,
+ &ptab_list_continue_export,
+ c_p,
+ res_acc,
+ magic_bin);
+ }
+ return ret_val;
+}
+
+static void
+cleanup_ptab_list_bif_data(Binary *bp)
+{
+ ErtsPTabListBifData *ptlbdp = ERTS_MAGIC_BIN_DATA(bp);
+ ErtsPTab *ptab = ptlbdp->ptab;
+
+ ERTS_PTAB_LIST_DBG_TRACE(ptlbdp->debug.caller, call);
+
+ if (ptlbdp->state != INITIALIZING) {
+
+ if (ptlbdp->chunk) {
+ erts_free(ERTS_ALC_T_PTAB_LIST_CNKI, ptlbdp->chunk);
+ ptlbdp->chunk = NULL;
+ }
+ if (ptlbdp->pid) {
+ erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, ptlbdp->pid);
+ ptlbdp->pid = NULL;
+ }
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+ if (ptlbdp->debug.pid_started) {
+ erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, ptlbdp->debug.pid_started);
+ ptlbdp->debug.pid_started = NULL;
+ }
+#endif
+
+ if (ptlbdp->bif_invocation) {
+ ErtsPTabDeletedElement *ptdep;
+
+ erts_ptab_rwlock(ptab);
+
+ ERTS_PTAB_LIST_DBG_TRACE(ptlbdp->debug.caller, deleted_cleanup);
+
+ ptdep = ptlbdp->bif_invocation;
+ ptlbdp->bif_invocation = NULL;
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ if (ptdep->prev) {
+ /*
+ * Only remove this bif invokation when we
+ * have preceding invokations.
+ */
+ ptdep->prev->next = ptdep->next;
+ if (ptdep->next)
+ ptdep->next->prev = ptdep->prev;
+ else {
+ /*
+ * At the time of writing this branch cannot be
+ * reached. I don't want to remove this code though
+ * since it may be possible to reach this line
+ * in the future if the cleanup order in
+ * erts_do_exit_process() is changed. The ASSERT(0)
+ * is only here to make us aware that the reorder
+ * has happened. /rickard
+ */
+ ASSERT(0);
+ ptab->list.data.deleted.end = ptdep->prev;
+ }
+ erts_free(ERTS_ALC_T_PTAB_LIST_DEL, ptdep);
+ }
+ else {
+ /*
+ * Free all elements until next bif invokation
+ * is found.
+ */
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start == ptdep);
+ do {
+ ErtsPTabDeletedElement *fptdep = ptdep;
+ ptdep = ptdep->next;
+ erts_free(ERTS_ALC_T_PTAB_LIST_DEL, fptdep);
+ } while (ptdep && ptdep->ix >= 0);
+ ptab->list.data.deleted.start = ptdep;
+ if (ptdep)
+ ptdep->prev = NULL;
+ else
+ ptab->list.data.deleted.end = NULL;
+ }
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ erts_ptab_rwunlock(ptab);
+
+ }
+ }
+
+ ERTS_PTAB_LIST_DBG_TRACE(ptlbdp->debug.caller, return);
+ ERTS_PTAB_LIST_DBG_CLEANUP(ptlbdp);
+}
+
+static int
+ptab_list_bif_engine(Process *c_p, Eterm *res_accp, Binary *mbp)
+{
+ ErtsPTabListBifData *ptlbdp = ERTS_MAGIC_BIN_DATA(mbp);
+ ErtsPTab *ptab = ptlbdp->ptab;
+ int have_reds;
+ int reds;
+ int locked = 0;
+
+ do {
+ switch (ptlbdp->state) {
+ case INITIALIZING:
+ ptlbdp->chunk = erts_alloc(ERTS_ALC_T_PTAB_LIST_CNKI,
+ (sizeof(ErtsPTabListBifChunkInfo)
+ * ptab->list.data.chunks));
+ ptlbdp->tix = 0;
+ ptlbdp->pid_ix = 0;
+
+ erts_ptab_rwlock(ptab);
+ locked = 1;
+
+ ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, init);
+
+ ptlbdp->pid_sz = erts_ptab_count(ptab);
+ ptlbdp->pid = erts_alloc(ERTS_ALC_T_PTAB_LIST_PIDS,
+ sizeof(Eterm)*ptlbdp->pid_sz);
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+ ptlbdp->debug.pid_started
+ = erts_alloc(ERTS_ALC_T_PTAB_LIST_PIDS,
+ sizeof(Uint64)*ptlbdp->pid_sz);
+#endif
+
+ ERTS_PTAB_LIST_DBG_SAVE_PIDS(ptlbdp);
+
+ if (ptab->list.data.chunks == 1)
+ ptlbdp->bif_invocation = NULL;
+ else {
+ /*
+ * We will have to access the table multiple times
+ * releasing the table lock in between chunks.
+ */
+ ptlbdp->bif_invocation
+ = erts_alloc(ERTS_ALC_T_PTAB_LIST_DEL,
+ sizeof(ErtsPTabDeletedElement));
+ ptlbdp->bif_invocation->ix = -1;
+ ptlbdp->bif_invocation->u.bif_invocation.interval
+ = erts_smp_step_interval_nob(erts_ptab_interval(ptab));
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ ptlbdp->bif_invocation->next = NULL;
+ if (ptab->list.data.deleted.end) {
+ ptlbdp->bif_invocation->prev = ptab->list.data.deleted.end;
+ ptab->list.data.deleted.end->next = ptlbdp->bif_invocation;
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start);
+ }
+ else {
+ ptlbdp->bif_invocation->prev = NULL;
+ ptab->list.data.deleted.start = ptlbdp->bif_invocation;
+ }
+ ptab->list.data.deleted.end = ptlbdp->bif_invocation;
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ }
+
+ ptlbdp->state = INSPECTING_TABLE;
+ /* Fall through */
+
+ case INSPECTING_TABLE: {
+ int ix = ptlbdp->tix;
+ int indices = ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE;
+ int cix = ix / ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE;
+ int end_ix = ix + indices;
+ Uint64 *invocation_interval_p;
+ ErtsPTabElementCommon *invalid_element;
+
+ invocation_interval_p
+ = (ptlbdp->bif_invocation
+ ? &ptlbdp->bif_invocation->u.bif_invocation.interval
+ : NULL);
+
+ ERTS_PTAB_LIST_ASSERT(is_nil(*res_accp));
+ if (!locked) {
+ erts_ptab_rwlock(ptab);
+ locked = 1;
+ }
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_ptab_is_rwlocked(ptab));
+ ERTS_PTAB_LIST_DBG_TRACE(p->common.id, insp_table);
+
+ if (cix != 0)
+ ptlbdp->chunk[cix].interval
+ = erts_smp_step_interval_nob(erts_ptab_interval(ptab));
+ else if (ptlbdp->bif_invocation)
+ ptlbdp->chunk[0].interval = *invocation_interval_p;
+ /* else: interval is irrelevant */
+
+ if (end_ix >= ptab->r.o.max) {
+ ERTS_PTAB_LIST_ASSERT(cix+1 == ptab->list.data.chunks);
+ end_ix = ptab->r.o.max;
+ indices = end_ix - ix;
+ /* What to do when done with this chunk */
+ ptlbdp->state = (ptab->list.data.chunks == 1
+ ? BUILDING_RESULT
+ : INSPECTING_DELETED);
+ }
+
+ invalid_element = ptab->r.o.invalid_element;
+ for (; ix < end_ix; ix++) {
+ ErtsPTabElementCommon *el;
+ el = (ErtsPTabElementCommon *) erts_ptab_pix2intptr_nob(ptab,
+ ix);
+ if (el
+ && el != invalid_element
+ && (!invocation_interval_p
+ || el->u.alive.started_interval < *invocation_interval_p)) {
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(el->id));
+ ptlbdp->pid[ptlbdp->pid_ix] = el->id;
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+ ptlbdp->debug.pid_started[ptlbdp->pid_ix]
+ = el->u.alive.started_interval;
+#endif
+
+ ptlbdp->pid_ix++;
+ ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix <= ptlbdp->pid_sz);
+ }
+ }
+
+ ptlbdp->tix = end_ix;
+
+ erts_ptab_rwunlock(ptab);
+ locked = 0;
+
+ reds = indices/ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED;
+ BUMP_REDS(c_p, reds);
+
+ have_reds = ERTS_BIF_REDS_LEFT(c_p);
+
+ if (have_reds && ptlbdp->state == INSPECTING_TABLE) {
+ ix = ptlbdp->tix;
+ indices = ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE;
+ end_ix = ix + indices;
+ if (end_ix > ptab->r.o.max) {
+ end_ix = ptab->r.o.max;
+ indices = end_ix - ix;
+ }
+
+ reds = indices/ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED;
+
+ /* Pretend we have no reds left if we haven't got enough
+ reductions to complete next chunk */
+ if (reds > have_reds)
+ have_reds = 0;
+ }
+
+ break;
+ }
+
+ case INSPECTING_DELETED: {
+ int i;
+ int max_reds;
+ int free_deleted = 0;
+ Uint64 invocation_interval;
+ ErtsPTabDeletedElement *ptdep;
+ ErtsPTabDeletedElement *free_list = NULL;
+
+ ptdep = ptlbdp->bif_invocation;
+ ERTS_PTAB_LIST_ASSERT(ptdep);
+ invocation_interval = ptdep->u.bif_invocation.interval;
+
+ max_reds = have_reds = ERTS_BIF_REDS_LEFT(c_p);
+ if (max_reds > ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS)
+ max_reds = ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS;
+
+ reds = 0;
+ erts_ptab_rwlock(ptab);
+ ERTS_PTAB_LIST_DBG_TRACE(p->common.id, insp_term_procs);
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+
+ if (ptdep->prev)
+ ptdep->prev->next = ptdep->next;
+ else {
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start == ptdep);
+ ptab->list.data.deleted.start = ptdep->next;
+
+ if (ptab->list.data.deleted.start
+ && ptab->list.data.deleted.start->ix >= 0) {
+ free_list = ptab->list.data.deleted.start;
+ free_deleted = 1;
+ }
+ }
+
+ if (ptdep->next)
+ ptdep->next->prev = ptdep->prev;
+ else
+ ptab->list.data.deleted.end = ptdep->prev;
+
+ ptdep = ptdep->next;
+
+ i = 0;
+ while (reds < max_reds && ptdep) {
+ if (ptdep->ix < 0) {
+ if (free_deleted) {
+ ERTS_PTAB_LIST_ASSERT(free_list);
+ ERTS_PTAB_LIST_ASSERT(ptdep->prev);
+
+ ptdep->prev->next = NULL; /* end of free_list */
+ ptab->list.data.deleted.start = ptdep;
+ ptdep->prev = NULL;
+ free_deleted = 0;
+ }
+ }
+ else {
+ int cix = ptdep->ix/ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE;
+ Uint64 chunk_interval = ptlbdp->chunk[cix].interval;
+ Eterm pid = ptdep->u.element.id;
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(pid));
+
+ if (ptdep->u.element.inserted < invocation_interval) {
+ if (ptdep->u.element.deleted < chunk_interval) {
+ ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND(
+ ptlbdp,
+ pid,
+ ptdep->u.element.inserted);
+ ptlbdp->pid[ptlbdp->pid_ix] = pid;
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+ ptlbdp->debug.pid_started[ptlbdp->pid_ix]
+ = ptdep->u.element.inserted;
+#endif
+ ptlbdp->pid_ix++;
+ ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix
+ <= ptlbdp->pid_sz);
+ }
+ else {
+ ERTS_PTAB_LIST_DBG_CHK_PID_FOUND(
+ ptlbdp,
+ pid,
+ ptdep->u.element.inserted);
+ }
+ }
+ else {
+ ERTS_PTAB_LIST_DBG_CHK_PID_NOT_FOUND(
+ ptlbdp,
+ pid,
+ ptdep->u.element.inserted);
+ }
+
+ i++;
+ if (i == ERTS_PTAB_LIST_BIF_INSPECT_DELETED_PER_RED) {
+ reds++;
+ i = 0;
+ }
+ if (free_deleted)
+ reds += ERTS_PTAB_LIST_BIF_TAB_FREE_DELETED_REDS;
+ }
+ ptdep = ptdep->next;
+ }
+
+ if (free_deleted) {
+ ERTS_PTAB_LIST_ASSERT(free_list);
+ ptab->list.data.deleted.start = ptdep;
+ if (!ptdep)
+ ptab->list.data.deleted.end = NULL;
+ else {
+ ERTS_PTAB_LIST_ASSERT(ptdep->prev);
+ ptdep->prev->next = NULL; /* end of free_list */
+ ptdep->prev = NULL;
+ }
+ }
+
+ if (!ptdep) {
+ /* Done */
+ ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix == ptlbdp->pid_sz);
+ ptlbdp->state = BUILDING_RESULT;
+ ptlbdp->bif_invocation->next = free_list;
+ free_list = ptlbdp->bif_invocation;
+ ptlbdp->bif_invocation = NULL;
+ }
+ else {
+ /* Link in bif_invocation again where we left off */
+ ptlbdp->bif_invocation->prev = ptdep->prev;
+ ptlbdp->bif_invocation->next = ptdep;
+ ptdep->prev = ptlbdp->bif_invocation;
+ if (ptlbdp->bif_invocation->prev)
+ ptlbdp->bif_invocation->prev->next = ptlbdp->bif_invocation;
+ else {
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start
+ == ptdep);
+ ptab->list.data.deleted.start = ptlbdp->bif_invocation;
+ }
+ }
+
+ ERTS_PTAB_LIST_DBG_CHK_DEL_LIST(ptab);
+ ERTS_PTAB_LIST_DBG_CHK_FREELIST(ptab, free_list);
+ erts_ptab_rwunlock(ptab);
+
+ /*
+ * We do the actual free of deleted structures now when we
+ * have released the table lock instead of when we encountered
+ * them. This since free() isn't for free and we don't want to
+ * unnecessarily block other schedulers.
+ */
+ while (free_list) {
+ ptdep = free_list;
+ free_list = ptdep->next;
+ erts_free(ERTS_ALC_T_PTAB_LIST_DEL, ptdep);
+ }
+
+ have_reds -= reds;
+ if (have_reds < 0)
+ have_reds = 0;
+ BUMP_REDS(c_p, reds);
+ break;
+ }
+
+ case BUILDING_RESULT: {
+ int conses, ix, min_ix;
+ Eterm *hp;
+ Eterm res = *res_accp;
+
+ ERTS_PTAB_LIST_DBG_VERIFY_PIDS(ptlbdp);
+ ERTS_PTAB_LIST_DBG_CHK_RESLIST(res);
+
+ ERTS_PTAB_LIST_DBG_TRACE(p->common.id, begin_build_res);
+
+ have_reds = ERTS_BIF_REDS_LEFT(c_p);
+ conses = ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED*have_reds;
+ min_ix = ptlbdp->pid_ix - conses;
+ if (min_ix < 0) {
+ min_ix = 0;
+ conses = ptlbdp->pid_ix;
+ }
+
+ if (conses) {
+ hp = HAlloc(c_p, conses*2);
+ ERTS_PTAB_LIST_DBG_SAVE_HEAP_ALLOC(ptlbdp, hp, conses*2);
+
+ for (ix = ptlbdp->pid_ix - 1; ix >= min_ix; ix--) {
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(ptlbdp->pid[ix]));
+ res = CONS(hp, ptlbdp->pid[ix], res);
+ hp += 2;
+ }
+
+ ERTS_PTAB_LIST_DBG_VERIFY_HEAP_ALLOC_USED(ptlbdp, hp);
+ }
+
+ ptlbdp->pid_ix = min_ix;
+ if (min_ix == 0)
+ ptlbdp->state = RETURN_RESULT;
+ else {
+ ptlbdp->pid_sz = min_ix;
+ ptlbdp->pid = erts_realloc(ERTS_ALC_T_PTAB_LIST_PIDS,
+ ptlbdp->pid,
+ sizeof(Eterm)*ptlbdp->pid_sz);
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+ ptlbdp->debug.pid_started
+ = erts_realloc(ERTS_ALC_T_PTAB_LIST_PIDS,
+ ptlbdp->debug.pid_started,
+ sizeof(Uint64) * ptlbdp->pid_sz);
+#endif
+ }
+ reds = conses/ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED;
+ BUMP_REDS(c_p, reds);
+ have_reds -= reds;
+
+ ERTS_PTAB_LIST_DBG_CHK_RESLIST(res);
+ ERTS_PTAB_LIST_DBG_TRACE(c_p->common.id, end_build_res);
+ *res_accp = res;
+ break;
+ }
+ case RETURN_RESULT:
+ cleanup_ptab_list_bif_data(mbp);
+ return 1;
+
+ default:
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:ptab_list_bif_engine(): Invalid state: %d\n",
+ __FILE__, __LINE__, (int) ptlbdp->state);
+ }
+
+
+ } while (have_reds || ptlbdp->state == RETURN_RESULT);
+
+ return 0;
+}
+
+/*
+ * ptab_list_continue/2 is a hidden BIF that the original BIF traps to
+ * if there are too much work to do in one go.
+ */
+
+static BIF_RETTYPE ptab_list_continue(BIF_ALIST_2)
+{
+ Eterm res_acc;
+ Binary *mbp;
+
+ /*
+ * This bif cannot be called from erlang code. It can only be
+ * trapped to from other BIFs; therefore, a bad argument
+ * is an internal error and should never occur...
+ */
+
+ ERTS_PTAB_LIST_DBG_TRACE(BIF_P->common.id, call);
+ ERTS_PTAB_LIST_ASSERT(is_nil(BIF_ARG_1) || is_list(BIF_ARG_1));
+
+ res_acc = BIF_ARG_1;
+
+ ERTS_PTAB_LIST_ASSERT(ERTS_TERM_IS_MAGIC_BINARY(BIF_ARG_2));
+
+ mbp = ((ProcBin *) binary_val(BIF_ARG_2))->val;
+
+ ERTS_PTAB_LIST_ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(mbp)
+ == cleanup_ptab_list_bif_data);
+ ERTS_PTAB_LIST_ASSERT(
+ ((ErtsPTabListBifData *) ERTS_MAGIC_BIN_DATA(mbp))->debug.caller
+ == BIF_P->common.id);
+
+ if (ptab_list_bif_engine(BIF_P, &res_acc, mbp)) {
+ ERTS_PTAB_LIST_DBG_TRACE(BIF_P->common.id, return);
+ BIF_RET(res_acc);
+ }
+ else {
+ ERTS_PTAB_LIST_DBG_TRACE(BIF_P->common.id, trap);
+ ERTS_BIF_YIELD2(&ptab_list_continue_export, BIF_P, res_acc, BIF_ARG_2);
+ }
+}
+
+void
+erts_ptab_init(void)
+{
+ /* ptab_list_continue/2 is a hidden BIF that the original BIF traps to. */
+ erts_init_trap_export(&ptab_list_continue_export,
+ am_erlang, am_ptab_list_continue, 2,
+ &ptab_list_continue);
+
+}
+
+/*
+ * Debug stuff
+ */
+
+Sint
+erts_ptab_test_next_id(ErtsPTab *ptab, int set, Uint next)
+{
+ Uint64 ld;
+ Sint res;
+ Eterm data;
+ int first_pix = -1;
+
+ erts_ptab_rwlock(ptab);
+
+ if (!set)
+ ld = last_data_read_nob(ptab);
+ else {
+
+ ld = (Uint64) next;
+ data = ERTS_PTAB_LastData2EtermData(ld);
+ if (ptab->r.o.invalid_data == data) {
+ ld += ptab->r.o.max;
+ ASSERT(erts_ptab_data2pix(ptab, data)
+ == erts_ptab_data2pix(ptab,
+ ERTS_PTAB_LastData2EtermData(ld)));
+ }
+ last_data_set_relb(ptab, ld);
+ }
+
+ while (1) {
+ int pix;
+ ld++;
+ pix = (int) (ld % ptab->r.o.max);
+ if (first_pix < 0)
+ first_pix = pix;
+ else if (pix == first_pix) {
+ res = -1;
+ break;
+ }
+ if (ERTS_AINT_NULL == erts_ptab_pix2intptr_nob(ptab, pix)) {
+ data = ERTS_PTAB_LastData2EtermData(ld);
+ if (ptab->r.o.invalid_data == data) {
+ ld += ptab->r.o.max;
+ ASSERT(erts_ptab_data2pix(ptab, data)
+ == erts_ptab_data2pix(ptab,
+ ERTS_PTAB_LastData2EtermData(ld)));
+ data = ERTS_PTAB_LastData2EtermData(ld);
+ }
+ res = data;
+ break;
+ }
+ }
+
+ erts_ptab_rwunlock(ptab);
+
+ return res;
+}
+
+static ERTS_INLINE ErtsPTabElementCommon *
+ptab_pix2el(ErtsPTab *ptab, int ix)
+{
+ ErtsPTabElementCommon *ptab_el;
+ ASSERT(0 <= ix && ix < ptab->r.o.max);
+ ptab_el = (ErtsPTabElementCommon *) erts_ptab_pix2intptr_nob(ptab, ix);
+ if (ptab_el == ptab->r.o.invalid_element)
+ return NULL;
+ else
+ return ptab_el;
+}
+
+Eterm
+erts_debug_ptab_list(Process *c_p, ErtsPTab *ptab)
+{
+ int i;
+ Uint need;
+ Eterm res;
+ Eterm* hp;
+ Eterm *hp_end;
+
+ erts_ptab_rwlock(ptab);
+
+ res = NIL;
+ need = erts_ptab_count(ptab) * 2;
+ hp = HAlloc(c_p, need); /* we need two heap words for each id */
+ hp_end = hp + need;
+
+ /* make the list by scanning bakward */
+
+
+ for (i = ptab->r.o.max-1; i >= 0; i--) {
+ ErtsPTabElementCommon *el = ptab_pix2el(ptab, i);
+ if (el) {
+ res = CONS(hp, el->id, res);
+ hp += 2;
+ }
+ }
+
+ erts_ptab_rwunlock(ptab);
+
+ HRelease(c_p, hp_end, hp);
+
+ return res;
+}
+
+Eterm
+erts_debug_ptab_list_bif_info(Process *c_p, ErtsPTab *ptab)
+{
+ ERTS_DECL_AM(ptab_list_bif_info);
+ Eterm elements[] = {
+ AM_ptab_list_bif_info,
+ make_small((Uint) ERTS_PTAB_LIST_BIF_MIN_START_REDS),
+ make_small((Uint) ptab->list.data.chunks),
+ make_small((Uint) ERTS_PTAB_LIST_BIF_TAB_CHUNK_SIZE),
+ make_small((Uint) ERTS_PTAB_LIST_BIF_TAB_INSPECT_INDICES_PER_RED),
+ make_small((Uint) ERTS_PTAB_LIST_BIF_TAB_FREE_DELETED_REDS),
+ make_small((Uint) ERTS_PTAB_LIST_BIF_INSPECT_DELETED_PER_RED),
+ make_small((Uint) ERTS_PTAB_LIST_INSPECT_DELETED_MAX_REDS),
+ make_small((Uint) ERTS_PTAB_LIST_BIF_BUILD_RESULT_CONSES_PER_RED),
+ make_small((Uint) ERTS_PTAB_LIST_BIF_DEBUGLEVEL)
+ };
+ Uint sz = 0;
+ Eterm *hp;
+ (void) erts_bld_tuplev(NULL, &sz, sizeof(elements)/sizeof(Eterm), elements);
+ hp = HAlloc(c_p, sz);
+ return erts_bld_tuplev(&hp, NULL, sizeof(elements)/sizeof(Eterm), elements);
+}
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_FOUND_PIDS
+static void
+debug_ptab_list_check_found_pid(ErtsPTabListBifData *ptlbdp,
+ Eterm pid,
+ Uint64 ic,
+ int pid_should_be_found)
+{
+ int i;
+ for (i = 0; i < ptlbdp->pid_ix; i++) {
+ if (ptlbdp->pid[i] == pid && ptlbdp->debug.pid_started[i] == ic) {
+ ERTS_PTAB_LIST_ASSERT(pid_should_be_found);
+ return;
+ }
+ }
+ ERTS_PTAB_LIST_ASSERT(!pid_should_be_found);
+}
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_RESLIST
+static void
+debug_ptab_list_check_res_list(Eterm list)
+{
+ while (is_list(list)) {
+ Eterm* consp = list_val(list);
+ Eterm hd = CAR(consp);
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(hd));
+ list = CDR(consp);
+ }
+
+ ERTS_PTAB_LIST_ASSERT(is_nil(list));
+}
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS
+
+static void
+debug_ptab_list_save_all_pids(ErtsPTabListBifData *ptlbdp)
+{
+ int ix, tix, cpix;
+ ErtsPTab *ptab = ptlbdp->ptab;
+ ptlbdp->debug.correct_pids_verified = 0;
+ ptlbdp->debug.correct_pids = erts_alloc(ERTS_ALC_T_PTAB_LIST_PIDS,
+ sizeof(Eterm)*ptlbdp->pid_sz);
+
+ for (tix = 0, cpix = 0; tix < ptab->r.o.max; tix++) {
+ ErtsPTabElementCommon *el = ptab_pix2el(ptab, tix);
+ if (el) {
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(el->id));
+ ptlbdp->debug.correct_pids[cpix++] = el->id;
+ ERTS_PTAB_LIST_ASSERT(cpix <= ptlbdp->pid_sz);
+ }
+ }
+ ERTS_PTAB_LIST_ASSERT(cpix == ptlbdp->pid_sz);
+
+ for (ix = 0; ix < ptlbdp->pid_sz; ix++)
+ ptlbdp->pid[ix] = make_small(ix);
+}
+
+static void
+debug_ptab_list_verify_all_pids(ErtsPTabListBifData *ptlbdp)
+{
+ int ix, cpix;
+
+ ERTS_PTAB_LIST_ASSERT(ptlbdp->pid_ix == ptlbdp->pid_sz);
+
+ for (ix = 0; ix < ptlbdp->pid_sz; ix++) {
+ int found = 0;
+ Eterm pid = ptlbdp->pid[ix];
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_is_valid_id(pid));
+ for (cpix = ix; cpix < ptlbdp->pid_sz; cpix++) {
+ if (ptlbdp->debug.correct_pids[cpix] == pid) {
+ ptlbdp->debug.correct_pids[cpix] = NIL;
+ found = 1;
+ break;
+ }
+ }
+ if (!found) {
+ for (cpix = 0; cpix < ix; cpix++) {
+ if (ptlbdp->debug.correct_pids[cpix] == pid) {
+ ptlbdp->debug.correct_pids[cpix] = NIL;
+ found = 1;
+ break;
+ }
+ }
+ }
+ ERTS_PTAB_LIST_ASSERT(found);
+ }
+ ptlbdp->debug.correct_pids_verified = 1;
+
+ erts_free(ERTS_ALC_T_PTAB_LIST_PIDS, ptlbdp->debug.correct_pids);
+ ptlbdp->debug.correct_pids = NULL;
+}
+#endif /* ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_PIDS */
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL >= ERTS_PTAB_LIST_DBGLVL_CHK_DEL_LIST
+static void
+debug_ptab_list_check_del_list(ErtsPTab *ptab)
+{
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_ptab_is_rwlocked(ptab));
+ if (!ptab->list.data.deleted.start)
+ ERTS_PTAB_LIST_ASSERT(!ptab->list.data.deleted.end);
+ else {
+ Uint64 curr_interval = erts_smp_current_interval_nob(erts_ptab_interval(ptab));
+ Uint64 *prev_x_interval_p = NULL;
+ ErtsPTabDeletedElement *ptdep;
+
+ for (ptdep = ptab->list.data.deleted.start;
+ ptdep;
+ ptdep = ptdep->next) {
+ if (!ptdep->prev)
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.start == ptdep);
+ else
+ ERTS_PTAB_LIST_ASSERT(ptdep->prev->next == ptdep);
+ if (!ptdep->next)
+ ERTS_PTAB_LIST_ASSERT(ptab->list.data.deleted.end == ptdep);
+ else
+ ERTS_PTAB_LIST_ASSERT(ptdep->next->prev == ptdep);
+ if (ptdep->ix < 0) {
+ Uint64 interval = ptdep->u.bif_invocation.interval;
+ ERTS_PTAB_LIST_ASSERT(interval <= curr_interval);
+ }
+ else {
+ Uint64 s_interval = ptdep->u.element.inserted;
+ Uint64 x_interval = ptdep->u.element.deleted;
+
+ ERTS_PTAB_LIST_ASSERT(s_interval <= x_interval);
+ if (prev_x_interval_p)
+ ERTS_PTAB_LIST_ASSERT(*prev_x_interval_p <= x_interval);
+ prev_x_interval_p = &ptdep->u.element.deleted;
+ ERTS_PTAB_LIST_ASSERT(
+ erts_ptab_is_valid_id(ptdep->u.element.id));
+ ERTS_PTAB_LIST_ASSERT(erts_ptab_id2pix(ptab,
+ ptdep->u.element.id)
+ == ptdep->ix);
+
+ }
+ }
+
+ }
+}
+
+static void
+debug_ptab_list_check_del_free_list(ErtsPTab *ptab,
+ ErtsPTabDeletedElement *free_list)
+{
+ if (ptab->list.data.deleted.start) {
+ ErtsPTabDeletedElement *fptdep;
+ ErtsPTabDeletedElement *ptdep;
+
+ for (fptdep = free_list; fptdep; fptdep = fptdep->next) {
+ for (ptdep = ptab->list.data.deleted.start;
+ ptdep;
+ ptdep = ptdep->next) {
+ ERTS_PTAB_LIST_ASSERT(fptdep != ptdep);
+ }
+ }
+ }
+}
+
+#endif
+
+#if ERTS_PTAB_LIST_BIF_DEBUGLEVEL != 0
+
+static void
+debug_ptab_list_assert_error(char* expr, const char* file, int line, const char *func)
+{
+ fflush(stdout);
+ erts_fprintf(stderr, "%s:%d:%s(): Assertion failed: %s\n",
+ (char *) file, line, (char *) func, expr);
+ fflush(stderr);
+ abort();
+}
+
+#endif
diff --git a/erts/emulator/beam/erl_ptab.h b/erts/emulator/beam/erl_ptab.h
new file mode 100644
index 0000000000..8a130f42a3
--- /dev/null
+++ b/erts/emulator/beam/erl_ptab.h
@@ -0,0 +1,472 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+/*
+ * Description: Process/Port table implementation.
+ *
+ * Author: Rickard Green
+ */
+
+#ifndef ERL_PTAB_H__
+#define ERL_PTAB_H__
+
+#include "sys.h"
+#include "erl_term.h"
+#include "erl_time.h"
+#include "erl_utils.h"
+#define ERL_THR_PROGRESS_TSD_TYPE_ONLY
+#include "erl_thr_progress.h"
+#undef ERL_THR_PROGRESS_TSD_TYPE_ONLY
+#include "erl_alloc.h"
+#include "erl_monitors.h"
+
+#define ERTS_TRACER_PROC(P) ((P)->common.tracer_proc)
+#define ERTS_TRACE_FLAGS(P) ((P)->common.trace_flags)
+
+#define ERTS_P_LINKS(P) ((P)->common.u.alive.links)
+#define ERTS_P_MONITORS(P) ((P)->common.u.alive.monitors)
+
+#define IS_TRACED(p) \
+ (ERTS_TRACER_PROC((p)) != NIL)
+#define ARE_TRACE_FLAGS_ON(p,tf) \
+ ((ERTS_TRACE_FLAGS((p)) & (tf|F_SENSITIVE)) == (tf))
+#define IS_TRACED_FL(p,tf) \
+ ( IS_TRACED(p) && ARE_TRACE_FLAGS_ON(p,tf) )
+
+typedef struct {
+ Eterm id;
+#ifdef ERTS_SMP
+ erts_atomic32_t refc;
+#endif
+ Eterm tracer_proc;
+ Uint trace_flags;
+ union {
+ /* --- While being alive --- */
+ struct {
+ Uint64 started_interval;
+ struct reg_proc *reg;
+ ErtsLink *links;
+ ErtsMonitor *monitors;
+#ifdef ERTS_SMP
+ ErtsSmpPTimer *ptimer;
+#else
+ ErlTimer tm;
+#endif
+ } alive;
+
+ /* --- While being released --- */
+ ErtsThrPrgrLaterOp release;
+ } u;
+} ErtsPTabElementCommon;
+
+typedef struct ErtsPTabDeletedElement_ ErtsPTabDeletedElement;
+
+typedef struct {
+ erts_smp_rwmtx_t rwmtx;
+ erts_interval_t interval;
+ struct {
+ ErtsPTabDeletedElement *start;
+ ErtsPTabDeletedElement *end;
+ } deleted;
+ int chunks;
+} ErtsPTabListData;
+
+typedef struct {
+#ifdef ARCH_32
+ erts_smp_dw_atomic_t last_data;
+#else
+ erts_smp_atomic_t last_data;
+#endif
+ erts_smp_atomic32_t count;
+} ErtsPTabVolatileData;
+
+typedef struct {
+ erts_smp_atomic_t *tab;
+ Uint32 max;
+ Uint32 tab_cache_lines;
+ Uint32 pix_per_cache_line;
+ Uint32 pix_mask;
+ Uint32 pix_cl_mask;
+ Uint32 pix_cl_shift;
+ Uint32 pix_cli_mask;
+ Uint32 pix_cli_shift;
+ ErtsPTabElementCommon *invalid_element;
+ Eterm invalid_data;
+ void (*release_element)(void *);
+} ErtsPTabReadOnlyData;
+
+typedef struct {
+ /*
+ * Data mainly modified when someone is listing
+ * the content of the table.
+ */
+ union {
+ ErtsPTabListData data;
+ char algn[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsPTabListData))];
+ } list;
+
+ /*
+ * Frequently modified data.
+ */
+ union {
+ ErtsPTabVolatileData tile;
+ char algn[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsPTabVolatileData))];
+ } vola;
+
+ /*
+ * Read only data.
+ */
+ union {
+ ErtsPTabReadOnlyData o;
+ char algn[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsPTabReadOnlyData))];
+ } r;
+} ErtsPTab;
+
+#define ERTS_PTAB_ID_DATA_SIZE 28
+#define ERTS_PTAB_ID_DATA_SHIFT (_TAG_IMMED1_SIZE)
+/* ERTS_PTAB_MAX_SIZE must be a power of 2 */
+#define ERTS_PTAB_MAX_SIZE (SWORD_CONSTANT(1) << 27)
+#if (ERTS_PTAB_MAX_SIZE-1) > MAX_SMALL
+# error "The maximum number of processes/ports must fit in a SMALL."
+#endif
+
+
+/*
+ * Currently pids and ports are allowed.
+ */
+#if _PID_DATA_SIZE != ERTS_PTAB_ID_DATA_SIZE
+# error "Unexpected pid data size"
+#endif
+#if _PID_DATA_SHIFT != ERTS_PTAB_ID_DATA_SHIFT
+# error "Unexpected pid tag size"
+#endif
+#if _PORT_DATA_SIZE != ERTS_PTAB_ID_DATA_SIZE
+# error "Unexpected port data size"
+#endif
+#if _PORT_DATA_SHIFT != ERTS_PTAB_ID_DATA_SHIFT
+# error "Unexpected port tag size"
+#endif
+
+#define ERTS_PTAB_INVALID_ID(TAG) \
+ ((Eterm) \
+ ((((1 << ERTS_PTAB_ID_DATA_SIZE) - 1) << ERTS_PTAB_ID_DATA_SHIFT) \
+ | (TAG)))
+
+#define erts_ptab_is_valid_id(ID) \
+ (is_internal_pid((ID)) || is_internal_port((ID)))
+
+void erts_ptab_init(void);
+void erts_ptab_init_table(ErtsPTab *ptab,
+ ErtsAlcType_t atype,
+ void (*release_element)(void *),
+ ErtsPTabElementCommon *invalid_element,
+ int size,
+ char *name);
+int erts_ptab_new_element(ErtsPTab *ptab,
+ ErtsPTabElementCommon *ptab_el,
+ void *init_arg,
+ void (*init_ptab_el)(void *, Eterm));
+void erts_ptab_delete_element(ErtsPTab *ptab,
+ ErtsPTabElementCommon *ptab_el);
+int erts_ptab_initialized(ErtsPTab *ptab);
+
+ERTS_GLB_INLINE erts_interval_t *erts_ptab_interval(ErtsPTab *ptab);
+ERTS_GLB_INLINE int erts_ptab_max(ErtsPTab *ptab);
+ERTS_GLB_INLINE int erts_ptab_count(ErtsPTab *ptab);
+ERTS_GLB_INLINE Uint erts_ptab_pixdata2data(ErtsPTab *ptab, Eterm pixdata);
+ERTS_GLB_INLINE Uint32 erts_ptab_pixdata2pix(ErtsPTab *ptab, Eterm pixdata);
+ERTS_GLB_INLINE Uint32 erts_ptab_data2pix(ErtsPTab *ptab, Eterm data);
+ERTS_GLB_INLINE Uint erts_ptab_data2pixdata(ErtsPTab *ptab, Eterm data);
+ERTS_GLB_INLINE Eterm erts_ptab_make_id(ErtsPTab *ptab, Eterm data, Eterm tag);
+ERTS_GLB_INLINE int erts_ptab_id2pix(ErtsPTab *ptab, Eterm id);
+ERTS_GLB_INLINE Uint erts_ptab_id2data(ErtsPTab *ptab, Eterm id);
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_nob(ErtsPTab *ptab, int ix);
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_ddrb(ErtsPTab *ptab, int ix);
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_rb(ErtsPTab *ptab, int ix);
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_acqb(ErtsPTab *ptab, int ix);
+ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el);
+ERTS_GLB_INLINE int erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el);
+ERTS_GLB_INLINE int erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el,
+ Sint32 add_refc);
+ERTS_GLB_INLINE void erts_ptab_rlock(ErtsPTab *ptab);
+ERTS_GLB_INLINE int erts_ptab_tryrlock(ErtsPTab *ptab);
+ERTS_GLB_INLINE void erts_ptab_runlock(ErtsPTab *ptab);
+ERTS_GLB_INLINE void erts_ptab_rwlock(ErtsPTab *ptab);
+ERTS_GLB_INLINE int erts_ptab_tryrwlock(ErtsPTab *ptab);
+ERTS_GLB_INLINE void erts_ptab_rwunlock(ErtsPTab *ptab);
+ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rlocked(ErtsPTab *ptab);
+ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rwlocked(ErtsPTab *ptab);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE erts_interval_t *
+erts_ptab_interval(ErtsPTab *ptab)
+{
+ return &ptab->list.data.interval;
+}
+
+ERTS_GLB_INLINE int
+erts_ptab_max(ErtsPTab *ptab)
+{
+ int max = ptab->r.o.max;
+ return max == ERTS_PTAB_MAX_SIZE ? max - 1 : max;
+}
+
+ERTS_GLB_INLINE int
+erts_ptab_count(ErtsPTab *ptab)
+{
+ int max = ptab->r.o.max;
+ erts_aint32_t res = erts_smp_atomic32_read_nob(&ptab->vola.tile.count);
+ if (max == ERTS_PTAB_MAX_SIZE) {
+ max--;
+ res--;
+ }
+ if (res > max)
+ return max;
+ ASSERT(res >= 0);
+ return (int) res;
+
+}
+
+ERTS_GLB_INLINE Uint erts_ptab_pixdata2data(ErtsPTab *ptab, Eterm pixdata)
+{
+ Uint32 data = ((Uint32) pixdata) & ~ptab->r.o.pix_mask;
+ data |= (pixdata >> ptab->r.o.pix_cl_shift) & ptab->r.o.pix_cl_mask;
+ data |= (pixdata & ptab->r.o.pix_cli_mask) << ptab->r.o.pix_cli_shift;
+ return data;
+}
+
+ERTS_GLB_INLINE Uint32 erts_ptab_pixdata2pix(ErtsPTab *ptab, Eterm pixdata)
+{
+ return ((Uint32) pixdata) & ptab->r.o.pix_mask;
+}
+
+ERTS_GLB_INLINE Uint32 erts_ptab_data2pix(ErtsPTab *ptab, Eterm data)
+{
+ Uint32 n, pix;
+ n = (Uint32) data;
+ pix = ((n & ptab->r.o.pix_cl_mask) << ptab->r.o.pix_cl_shift);
+ pix += ((n >> ptab->r.o.pix_cli_shift) & ptab->r.o.pix_cli_mask);
+ ASSERT(0 <= pix && pix < ptab->r.o.max);
+ return pix;
+}
+
+ERTS_GLB_INLINE Uint erts_ptab_data2pixdata(ErtsPTab *ptab, Eterm data)
+{
+ Uint pixdata = data & ~((Uint) ptab->r.o.pix_mask);
+ pixdata |= (Uint) erts_ptab_data2pix(ptab, data);
+ ASSERT(data == erts_ptab_pixdata2data(ptab, pixdata));
+ return pixdata;
+}
+
+#if ERTS_SIZEOF_TERM == 8
+
+ERTS_GLB_INLINE Eterm
+erts_ptab_make_id(ErtsPTab *ptab, Eterm data, Eterm tag)
+{
+ HUint huint;
+ Uint32 low_data = (Uint32) data;
+ low_data &= (1 << ERTS_PTAB_ID_DATA_SIZE) - 1;
+ low_data <<= ERTS_PTAB_ID_DATA_SHIFT;
+ huint.hval[ERTS_HUINT_HVAL_HIGH] = erts_ptab_data2pix(ptab, data);
+ huint.hval[ERTS_HUINT_HVAL_LOW] = low_data | ((Uint32) tag);
+ return (Eterm) huint.val;
+}
+
+ERTS_GLB_INLINE int
+erts_ptab_id2pix(ErtsPTab *ptab, Eterm id)
+{
+ HUint huint;
+ huint.val = id;
+ return (int) huint.hval[ERTS_HUINT_HVAL_HIGH];
+}
+
+ERTS_GLB_INLINE Uint
+erts_ptab_id2data(ErtsPTab *ptab, Eterm id)
+{
+ HUint huint;
+ huint.val = id;
+ return (Uint) (huint.hval[ERTS_HUINT_HVAL_LOW] >> ERTS_PTAB_ID_DATA_SHIFT);
+}
+
+#elif ERTS_SIZEOF_TERM == 4
+
+ERTS_GLB_INLINE Eterm
+erts_ptab_make_id(ErtsPTab *ptab, Eterm data, Eterm tag)
+{
+ Eterm id;
+ data &= ((1 << ERTS_PTAB_ID_DATA_SIZE) - 1);
+ id = (Eterm) erts_ptab_data2pixdata(ptab, data);
+ return (id << ERTS_PTAB_ID_DATA_SHIFT) | tag;
+}
+
+ERTS_GLB_INLINE int
+erts_ptab_id2pix(ErtsPTab *ptab, Eterm id)
+{
+ Uint pixdata = (Uint) id;
+ pixdata >>= ERTS_PTAB_ID_DATA_SHIFT;
+ return (int) erts_ptab_pixdata2pix(ptab, pixdata);
+}
+
+ERTS_GLB_INLINE Uint
+erts_ptab_id2data(ErtsPTab *ptab, Eterm id)
+{
+ Uint pixdata = (Uint) id;
+ pixdata >>= ERTS_PTAB_ID_DATA_SHIFT;
+ return erts_ptab_pixdata2data(ptab, pixdata);
+}
+
+#else
+#error "Unsupported size of term"
+#endif
+
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_nob(ErtsPTab *ptab, int ix)
+{
+ ASSERT(0 <= ix && ix < ptab->r.o.max);
+ return erts_smp_atomic_read_nob(&ptab->r.o.tab[ix]);
+}
+
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_ddrb(ErtsPTab *ptab, int ix)
+{
+ ASSERT(0 <= ix && ix < ptab->r.o.max);
+ return erts_smp_atomic_read_ddrb(&ptab->r.o.tab[ix]);
+}
+
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_rb(ErtsPTab *ptab, int ix)
+{
+ ASSERT(0 <= ix && ix < ptab->r.o.max);
+ return erts_smp_atomic_read_rb(&ptab->r.o.tab[ix]);
+}
+
+ERTS_GLB_INLINE erts_aint_t erts_ptab_pix2intptr_acqb(ErtsPTab *ptab, int ix)
+{
+ ASSERT(0 <= ix && ix < ptab->r.o.max);
+ return erts_smp_atomic_read_acqb(&ptab->r.o.tab[ix]);
+}
+
+ERTS_GLB_INLINE void erts_ptab_inc_refc(ErtsPTabElementCommon *ptab_el)
+{
+#ifdef ERTS_SMP
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_aint32_t refc = erts_atomic32_inc_read_nob(&ptab_el->refc);
+ ERTS_SMP_LC_ASSERT(refc > 1);
+#else
+ erts_atomic32_inc_nob(&ptab_el->refc);
+#endif
+#endif
+}
+
+ERTS_GLB_INLINE int erts_ptab_dec_test_refc(ErtsPTabElementCommon *ptab_el)
+{
+#ifdef ERTS_SMP
+ erts_aint32_t refc = erts_atomic32_dec_read_nob(&ptab_el->refc);
+ ERTS_SMP_LC_ASSERT(refc >= 0);
+ return (int) refc;
+#else
+ return 0;
+#endif
+}
+
+ERTS_GLB_INLINE int erts_ptab_add_test_refc(ErtsPTabElementCommon *ptab_el,
+ Sint32 add_refc)
+{
+#ifdef ERTS_SMP
+ erts_aint32_t refc;
+
+#ifndef ERTS_ENABLE_LOCK_CHECK
+ if (add_refc >= 0) {
+ erts_atomic32_add_nob(&ptab_el->refc,
+ (erts_aint32_t) add_refc);
+ return 1;
+ }
+#endif
+
+ refc = erts_atomic32_add_read_nob(&ptab_el->refc,
+ (erts_aint32_t) add_refc);
+ ERTS_SMP_LC_ASSERT(refc >= 0);
+ return (int) refc;
+#else
+ return 0;
+#endif
+}
+
+ERTS_GLB_INLINE void erts_ptab_rlock(ErtsPTab *ptab)
+{
+ erts_smp_rwmtx_rlock(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE int erts_ptab_tryrlock(ErtsPTab *ptab)
+{
+ return erts_smp_rwmtx_tryrlock(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE void erts_ptab_runlock(ErtsPTab *ptab)
+{
+ erts_smp_rwmtx_runlock(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE void erts_ptab_rwlock(ErtsPTab *ptab)
+{
+ erts_smp_rwmtx_rwlock(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE int erts_ptab_tryrwlock(ErtsPTab *ptab)
+{
+ return erts_smp_rwmtx_tryrwlock(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE void erts_ptab_rwunlock(ErtsPTab *ptab)
+{
+ erts_smp_rwmtx_rwunlock(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rlocked(ErtsPTab *ptab)
+{
+ return erts_smp_lc_rwmtx_is_rlocked(&ptab->list.data.rwmtx);
+}
+
+ERTS_GLB_INLINE int erts_smp_lc_ptab_is_rwlocked(ErtsPTab *ptab)
+{
+ return erts_smp_lc_rwmtx_is_rwlocked(&ptab->list.data.rwmtx);
+}
+
+#endif
+
+#endif
+
+#if defined(ERTS_PTAB_WANT_BIF_IMPL__) && !defined(ERTS_PTAB_LIST__)
+#define ERTS_PTAB_LIST__
+
+#include "erl_process.h"
+#include "bif.h"
+
+BIF_RETTYPE erts_ptab_list(struct process *c_p, ErtsPTab *ptab);
+
+#endif
+
+#if defined(ERTS_PTAB_WANT_DEBUG_FUNCS__) && !defined(ERTS_PTAB_DEBUG_FUNCS__)
+#define ERTS_PTAB_DEBUG_FUNCS__
+#include "erl_process.h"
+
+/* Debug functions */
+Sint erts_ptab_test_next_id(ErtsPTab *ptab, int set, Uint next);
+Eterm erts_debug_ptab_list(Process *c_p, ErtsPTab *ptab);
+Eterm erts_debug_ptab_list_bif_info(Process *c_p, ErtsPTab *ptab);
+
+#endif
diff --git a/erts/emulator/beam/erl_resolv_dns.c b/erts/emulator/beam/erl_resolv_dns.c
deleted file mode 100644
index 9d76fa89f8..0000000000
--- a/erts/emulator/beam/erl_resolv_dns.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1997-2009. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-/*
- * Set this to non-zero value if DNS should be used.
- */
-int erl_use_resolver = 1;
diff --git a/erts/emulator/beam/erl_resolv_nodns.c b/erts/emulator/beam/erl_resolv_nodns.c
deleted file mode 100644
index f14ab68e27..0000000000
--- a/erts/emulator/beam/erl_resolv_nodns.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1997-2009. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-/*
- * Set this to non-zero value if DNS should be used.
- */
-int erl_use_resolver = 0;
diff --git a/erts/emulator/beam/erl_smp.h b/erts/emulator/beam/erl_smp.h
index a32e9d9d7c..34c90c0bda 100644
--- a/erts/emulator/beam/erl_smp.h
+++ b/erts/emulator/beam/erl_smp.h
@@ -274,6 +274,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_nob erts_atomic_read_band_nob
#define erts_smp_atomic_xchg_nob erts_atomic_xchg_nob
#define erts_smp_atomic_cmpxchg_nob erts_atomic_cmpxchg_nob
+#define erts_smp_atomic_read_bset_nob erts_atomic_read_bset_nob
#define erts_smp_atomic_init_mb erts_atomic_init_mb
#define erts_smp_atomic_set_mb erts_atomic_set_mb
@@ -288,6 +289,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_mb erts_atomic_read_band_mb
#define erts_smp_atomic_xchg_mb erts_atomic_xchg_mb
#define erts_smp_atomic_cmpxchg_mb erts_atomic_cmpxchg_mb
+#define erts_smp_atomic_read_bset_mb erts_atomic_read_bset_mb
#define erts_smp_atomic_init_acqb erts_atomic_init_acqb
#define erts_smp_atomic_set_acqb erts_atomic_set_acqb
@@ -302,6 +304,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_acqb erts_atomic_read_band_acqb
#define erts_smp_atomic_xchg_acqb erts_atomic_xchg_acqb
#define erts_smp_atomic_cmpxchg_acqb erts_atomic_cmpxchg_acqb
+#define erts_smp_atomic_read_bset_acqb erts_atomic_read_bset_acqb
#define erts_smp_atomic_init_relb erts_atomic_init_relb
#define erts_smp_atomic_set_relb erts_atomic_set_relb
@@ -316,6 +319,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_relb erts_atomic_read_band_relb
#define erts_smp_atomic_xchg_relb erts_atomic_xchg_relb
#define erts_smp_atomic_cmpxchg_relb erts_atomic_cmpxchg_relb
+#define erts_smp_atomic_read_bset_relb erts_atomic_read_bset_relb
#define erts_smp_atomic_init_ddrb erts_atomic_init_ddrb
#define erts_smp_atomic_set_ddrb erts_atomic_set_ddrb
@@ -330,6 +334,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_ddrb erts_atomic_read_band_ddrb
#define erts_smp_atomic_xchg_ddrb erts_atomic_xchg_ddrb
#define erts_smp_atomic_cmpxchg_ddrb erts_atomic_cmpxchg_ddrb
+#define erts_smp_atomic_read_bset_ddrb erts_atomic_read_bset_ddrb
#define erts_smp_atomic_init_rb erts_atomic_init_rb
#define erts_smp_atomic_set_rb erts_atomic_set_rb
@@ -344,6 +349,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_rb erts_atomic_read_band_rb
#define erts_smp_atomic_xchg_rb erts_atomic_xchg_rb
#define erts_smp_atomic_cmpxchg_rb erts_atomic_cmpxchg_rb
+#define erts_smp_atomic_read_bset_rb erts_atomic_read_bset_rb
#define erts_smp_atomic_init_wb erts_atomic_init_wb
#define erts_smp_atomic_set_wb erts_atomic_set_wb
@@ -358,6 +364,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_wb erts_atomic_read_band_wb
#define erts_smp_atomic_xchg_wb erts_atomic_xchg_wb
#define erts_smp_atomic_cmpxchg_wb erts_atomic_cmpxchg_wb
+#define erts_smp_atomic_read_bset_wb erts_atomic_read_bset_wb
/* 32-bit atomics */
@@ -374,6 +381,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_nob erts_atomic32_read_band_nob
#define erts_smp_atomic32_xchg_nob erts_atomic32_xchg_nob
#define erts_smp_atomic32_cmpxchg_nob erts_atomic32_cmpxchg_nob
+#define erts_smp_atomic32_read_bset_nob erts_atomic32_read_bset_nob
#define erts_smp_atomic32_init_mb erts_atomic32_init_mb
#define erts_smp_atomic32_set_mb erts_atomic32_set_mb
@@ -388,6 +396,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_mb erts_atomic32_read_band_mb
#define erts_smp_atomic32_xchg_mb erts_atomic32_xchg_mb
#define erts_smp_atomic32_cmpxchg_mb erts_atomic32_cmpxchg_mb
+#define erts_smp_atomic32_read_bset_mb erts_atomic32_read_bset_mb
#define erts_smp_atomic32_init_acqb erts_atomic32_init_acqb
#define erts_smp_atomic32_set_acqb erts_atomic32_set_acqb
@@ -402,6 +411,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_acqb erts_atomic32_read_band_acqb
#define erts_smp_atomic32_xchg_acqb erts_atomic32_xchg_acqb
#define erts_smp_atomic32_cmpxchg_acqb erts_atomic32_cmpxchg_acqb
+#define erts_smp_atomic32_read_bset_acqb erts_atomic32_read_bset_acqb
#define erts_smp_atomic32_init_relb erts_atomic32_init_relb
#define erts_smp_atomic32_set_relb erts_atomic32_set_relb
@@ -416,6 +426,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_relb erts_atomic32_read_band_relb
#define erts_smp_atomic32_xchg_relb erts_atomic32_xchg_relb
#define erts_smp_atomic32_cmpxchg_relb erts_atomic32_cmpxchg_relb
+#define erts_smp_atomic32_read_bset_relb erts_atomic32_read_bset_relb
#define erts_smp_atomic32_init_ddrb erts_atomic32_init_ddrb
#define erts_smp_atomic32_set_ddrb erts_atomic32_set_ddrb
@@ -430,6 +441,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_ddrb erts_atomic32_read_band_ddrb
#define erts_smp_atomic32_xchg_ddrb erts_atomic32_xchg_ddrb
#define erts_smp_atomic32_cmpxchg_ddrb erts_atomic32_cmpxchg_ddrb
+#define erts_smp_atomic32_read_bset_ddrb erts_atomic32_read_bset_ddrb
#define erts_smp_atomic32_init_rb erts_atomic32_init_rb
#define erts_smp_atomic32_set_rb erts_atomic32_set_rb
@@ -444,6 +456,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_rb erts_atomic32_read_band_rb
#define erts_smp_atomic32_xchg_rb erts_atomic32_xchg_rb
#define erts_smp_atomic32_cmpxchg_rb erts_atomic32_cmpxchg_rb
+#define erts_smp_atomic32_read_bset_rb erts_atomic32_read_bset_rb
#define erts_smp_atomic32_init_wb erts_atomic32_init_wb
#define erts_smp_atomic32_set_wb erts_atomic32_set_wb
@@ -458,6 +471,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_wb erts_atomic32_read_band_wb
#define erts_smp_atomic32_xchg_wb erts_atomic32_xchg_wb
#define erts_smp_atomic32_cmpxchg_wb erts_atomic32_cmpxchg_wb
+#define erts_smp_atomic32_read_bset_wb erts_atomic32_read_bset_wb
#else /* !ERTS_SMP */
@@ -513,6 +527,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_nob erts_no_atomic_read_band
#define erts_smp_atomic_xchg_nob erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_nob erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_nob erts_no_atomic_read_bset
#define erts_smp_atomic_init_mb erts_no_atomic_set
#define erts_smp_atomic_set_mb erts_no_atomic_set
@@ -527,6 +542,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_mb erts_no_atomic_read_band
#define erts_smp_atomic_xchg_mb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_mb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_mb erts_no_atomic_read_bset
#define erts_smp_atomic_init_acqb erts_no_atomic_set
#define erts_smp_atomic_set_acqb erts_no_atomic_set
@@ -541,6 +557,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_acqb erts_no_atomic_read_band
#define erts_smp_atomic_xchg_acqb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_acqb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_acqb erts_no_atomic_read_bset
#define erts_smp_atomic_init_relb erts_no_atomic_set
#define erts_smp_atomic_set_relb erts_no_atomic_set
@@ -555,6 +572,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_relb erts_no_atomic_read_band
#define erts_smp_atomic_xchg_relb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_relb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_relb erts_no_atomic_read_bset
#define erts_smp_atomic_init_ddrb erts_no_atomic_set
#define erts_smp_atomic_set_ddrb erts_no_atomic_set
@@ -569,6 +587,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_ddrb erts_no_atomic_read_band
#define erts_smp_atomic_xchg_ddrb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_ddrb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_ddrb erts_no_atomic_read_bset
#define erts_smp_atomic_init_rb erts_no_atomic_set
#define erts_smp_atomic_set_rb erts_no_atomic_set
@@ -583,6 +602,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_rb erts_no_atomic_read_band
#define erts_smp_atomic_xchg_rb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_rb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_rb erts_no_atomic_read_bset
#define erts_smp_atomic_init_wb erts_no_atomic_set
#define erts_smp_atomic_set_wb erts_no_atomic_set
@@ -597,6 +617,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic_read_band_wb erts_no_atomic_read_band
#define erts_smp_atomic_xchg_wb erts_no_atomic_xchg
#define erts_smp_atomic_cmpxchg_wb erts_no_atomic_cmpxchg
+#define erts_smp_atomic_read_bset_wb erts_no_atomic_read_bset
/* 32-bit atomics */
@@ -613,6 +634,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_nob erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_nob erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_nob erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_nob erts_no_atomic32_read_bset
#define erts_smp_atomic32_init_mb erts_no_atomic32_set
#define erts_smp_atomic32_set_mb erts_no_atomic32_set
@@ -627,6 +649,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_mb erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_mb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_mb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_mb erts_no_atomic32_read_bset
#define erts_smp_atomic32_init_acqb erts_no_atomic32_set
#define erts_smp_atomic32_set_acqb erts_no_atomic32_set
@@ -641,6 +664,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_acqb erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_acqb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_acqb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_acqb erts_no_atomic32_read_bset
#define erts_smp_atomic32_init_relb erts_no_atomic32_set
#define erts_smp_atomic32_set_relb erts_no_atomic32_set
@@ -655,6 +679,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_relb erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_relb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_relb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_relb erts_no_atomic32_read_bset
#define erts_smp_atomic32_init_ddrb erts_no_atomic32_set
#define erts_smp_atomic32_set_ddrb erts_no_atomic32_set
@@ -669,6 +694,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_ddrb erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_ddrb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_ddrb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_ddrb erts_no_atomic32_read_bset
#define erts_smp_atomic32_init_rb erts_no_atomic32_set
#define erts_smp_atomic32_set_rb erts_no_atomic32_set
@@ -683,6 +709,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_rb erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_rb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_rb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_rb erts_no_atomic32_read_bset
#define erts_smp_atomic32_init_wb erts_no_atomic32_set
#define erts_smp_atomic32_set_wb erts_no_atomic32_set
@@ -697,6 +724,7 @@ ERTS_GLB_INLINE void erts_smp_thr_sigwait(const sigset_t *set, int *sig);
#define erts_smp_atomic32_read_band_wb erts_no_atomic32_read_band
#define erts_smp_atomic32_xchg_wb erts_no_atomic32_xchg
#define erts_smp_atomic32_cmpxchg_wb erts_no_atomic32_cmpxchg
+#define erts_smp_atomic32_read_bset_wb erts_no_atomic32_read_bset
#endif /* !ERTS_SMP */
diff --git a/erts/emulator/beam/erl_sys_driver.h b/erts/emulator/beam/erl_sys_driver.h
index d429d0ce96..b991a2840c 100644
--- a/erts/emulator/beam/erl_sys_driver.h
+++ b/erts/emulator/beam/erl_sys_driver.h
@@ -31,7 +31,6 @@
#define ERL_SYS_DRV
typedef long ErlDrvEvent; /* An event to be selected on. */
-typedef long ErlDrvPort; /* A port descriptor. */
/* typedef struct _SysDriverOpts SysDriverOpts; defined in sys.h */
diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c
index f77e8b798f..4587cd84d1 100644
--- a/erts/emulator/beam/erl_term.c
+++ b/erts/emulator/beam/erl_term.c
@@ -105,7 +105,7 @@ unsigned tag_val_def(Wterm x)
break;
}
}
- sprintf(msg, "tag_val_def: %#lx", (unsigned long) x);
+ erts_snprintf(msg, sizeof(msg), "tag_val_def: %#lx", (unsigned long) x);
et_abort(msg, file, line);
#undef file
#undef line
@@ -133,7 +133,7 @@ ET_DEFINE_CHECKED(Uint,unsigned_val,Eterm,is_small);
ET_DEFINE_CHECKED(Sint,signed_val,Eterm,is_small);
ET_DEFINE_CHECKED(Uint,atom_val,Eterm,is_atom);
ET_DEFINE_CHECKED(Uint,header_arity,Eterm,is_header);
-ET_DEFINE_CHECKED(Uint,arityval,Eterm,is_arity_value);
+ET_DEFINE_CHECKED(Uint,arityval,Eterm,is_sane_arity_value);
ET_DEFINE_CHECKED(Uint,thing_arityval,Eterm,is_thing);
ET_DEFINE_CHECKED(Uint,thing_subtag,Eterm,is_thing);
ET_DEFINE_CHECKED(Eterm*,binary_val,Wterm,is_binary);
@@ -144,9 +144,7 @@ ET_DEFINE_CHECKED(Uint,bignum_header_arity,Eterm,_is_bignum_header);
ET_DEFINE_CHECKED(Eterm*,big_val,Wterm,is_big);
ET_DEFINE_CHECKED(Eterm*,float_val,Wterm,is_float);
ET_DEFINE_CHECKED(Eterm*,tuple_val,Wterm,is_tuple);
-ET_DEFINE_CHECKED(Uint,internal_pid_data,Eterm,is_internal_pid);
ET_DEFINE_CHECKED(struct erl_node_*,internal_pid_node,Eterm,is_internal_pid);
-ET_DEFINE_CHECKED(Uint,internal_port_data,Eterm,is_internal_port);
ET_DEFINE_CHECKED(struct erl_node_*,internal_port_node,Eterm,is_internal_port);
ET_DEFINE_CHECKED(Eterm*,internal_ref_val,Wterm,is_internal_ref);
ET_DEFINE_CHECKED(Uint,internal_ref_data_words,Wterm,is_internal_ref);
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h
index c270d13365..fb3ef9cd6c 100644
--- a/erts/emulator/beam/erl_term.h
+++ b/erts/emulator/beam/erl_term.h
@@ -300,8 +300,17 @@ _ET_DECLARE_CHECKED(Uint,header_arity,Eterm)
#define header_arity(x) _ET_APPLY(header_arity,(x))
/* arityval access methods */
+/* Erlang Spec. 4.7.3 defines max arity to 65535
+ * we will however enforce max arity of 16777215 (24 bits)
+ * (checked in bifs and asserted in debug)
+ */
+#define MAX_ARITYVAL ((((Uint)1) << 24) - 1)
+#define ERTS_MAX_TUPLE_SIZE MAX_ARITYVAL
+
#define make_arityval(sz) _make_header((sz),_TAG_HEADER_ARITYVAL)
#define is_arity_value(x) (((x) & _TAG_HEADER_MASK) == _TAG_HEADER_ARITYVAL)
+#define is_sane_arity_value(x) ((((x) & _TAG_HEADER_MASK) == _TAG_HEADER_ARITYVAL) && \
+ (((x) >> _HEADER_ARITY_OFFS) <= MAX_ARITYVAL))
#define is_not_arity_value(x) (!is_arity_value((x)))
#define _unchecked_arityval(x) _unchecked_header_arity((x))
_ET_DECLARE_CHECKED(Uint,arityval,Eterm)
@@ -542,12 +551,6 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm)
#define _GETBITS(X,Pos,Size) (((X) >> (Pos)) & ~(~((Uint) 0) << (Size)))
/*
- * Observe! New layout for pids, ports and references in R9 (see also note
- * in erl_node_container_utils.h).
- */
-
-
-/*
* Creation in node specific data (pids, ports, refs)
*/
@@ -584,7 +587,6 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm)
*
*/
-#define _PID_R9_SER_SIZE 3
#define _PID_SER_SIZE (_PID_DATA_SIZE - _PID_NUM_SIZE)
#define _PID_NUM_SIZE 15
@@ -598,23 +600,13 @@ _ET_DECLARE_CHECKED(Eterm*,tuple_val,Wterm)
#define make_pid_data(Ser, Num) \
((Uint) ((Ser) << _PID_NUM_SIZE | (Num)))
-#define make_internal_pid(X) \
- ((Eterm) (((X) << _PID_DATA_SHIFT) | _TAG_IMMED1_PID))
-
#define is_internal_pid(x) (((x) & _TAG_IMMED1_MASK) == _TAG_IMMED1_PID)
#define is_not_internal_pid(x) (!is_internal_pid((x)))
-#define _unchecked_internal_pid_data(x) _GET_PID_DATA((x))
-_ET_DECLARE_CHECKED(Uint,internal_pid_data,Eterm)
-#define internal_pid_data(x) _ET_APPLY(internal_pid_data,(x))
-
#define _unchecked_internal_pid_node(x) erts_this_node
_ET_DECLARE_CHECKED(struct erl_node_*,internal_pid_node,Eterm)
#define internal_pid_node(x) _ET_APPLY(internal_pid_node,(x))
-#define internal_pid_number(x) _GET_PID_NUM(internal_pid_data((x)))
-#define internal_pid_serial(x) _GET_PID_SER(internal_pid_data((x)))
-
#define internal_pid_data_words(x) (1)
/*
@@ -644,7 +636,6 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_pid_node,Eterm)
* N : node number
*
*/
-#define _PORT_R9_NUM_SIZE 18
#define _PORT_NUM_SIZE _PORT_DATA_SIZE
#define _PORT_DATA_SIZE 28
@@ -654,18 +645,9 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_pid_node,Eterm)
#define _GET_PORT_NUM(X) _GETBITS((X), 0, _PORT_NUM_SIZE)
-#define make_internal_port(X) \
- ((Eterm) (((X) << _PORT_DATA_SHIFT) | _TAG_IMMED1_PORT))
-
#define is_internal_port(x) (((x) & _TAG_IMMED1_MASK) == _TAG_IMMED1_PORT)
#define is_not_internal_port(x) (!is_internal_port(x))
-#define _unchecked_internal_port_data(x) _GET_PORT_DATA((x))
-_ET_DECLARE_CHECKED(Uint,internal_port_data,Eterm)
-#define internal_port_data(x) _ET_APPLY(internal_port_data,(x))
-
-#define internal_port_number(x) _GET_PORT_NUM(internal_port_data((x)))
-
#define _unchecked_internal_port_node(x) erts_this_node
_ET_DECLARE_CHECKED(struct erl_node_*,internal_port_node,Eterm)
#define internal_port_node(x) _ET_APPLY(internal_port_node,(x))
diff --git a/erts/emulator/beam/erl_thr_progress.c b/erts/emulator/beam/erl_thr_progress.c
index 88524bdd4c..9678d7e08b 100644
--- a/erts/emulator/beam/erl_thr_progress.c
+++ b/erts/emulator/beam/erl_thr_progress.c
@@ -96,17 +96,14 @@
#define ERTS_THR_PRGR_LFLG_BLOCK (((erts_aint32_t) 1) << 31)
#define ERTS_THR_PRGR_LFLG_NO_LEADER (((erts_aint32_t) 1) << 30)
-#define ERTS_THR_PRGR_LFLG_ACTIVE_MASK (~(ERTS_THR_PRGR_LFLG_NO_LEADER \
- | ERTS_THR_PRGR_LFLG_BLOCK))
+#define ERTS_THR_PRGR_LFLG_WAITING_UM (((erts_aint32_t) 1) << 29)
+#define ERTS_THR_PRGR_LFLG_ACTIVE_MASK (~(ERTS_THR_PRGR_LFLG_NO_LEADER \
+ | ERTS_THR_PRGR_LFLG_BLOCK \
+ | ERTS_THR_PRGR_LFLG_WAITING_UM))
-#define ERTS_THR_PRGR_LFLGS_ACTIVE(LFLGS) \
+#define ERTS_THR_PRGR_LFLGS_ACTIVE(LFLGS) \
((LFLGS) & ERTS_THR_PRGR_LFLG_ACTIVE_MASK)
-#define ERTS_THR_PRGR_LFLGS_ALL_WAITING(LFLGS) \
- (((LFLGS) & (ERTS_THR_PRGR_LFLG_NO_LEADER \
- |ERTS_THR_PRGR_LFLG_ACTIVE_MASK)) \
- == ERTS_THR_PRGR_LFLG_NO_LEADER)
-
/*
* We use a 64-bit value for thread progress. By this wrapping of
* the thread progress will more or less never occur.
@@ -262,6 +259,11 @@ typedef struct {
erts_atomic32_t managed_count;
erts_atomic32_t managed_id;
erts_atomic32_t unmanaged_id;
+ int chk_next_ix;
+ struct {
+ int waiting;
+ erts_atomic32_t current;
+ } umrefc_ix;
} ErtsThrPrgrMiscData;
typedef struct {
@@ -276,12 +278,18 @@ typedef union {
char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(ErtsThrPrgrElement))];
} ErtsThrPrgrArray;
+typedef union {
+ erts_atomic_t refc;
+ char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(sizeof(erts_atomic_t))];
+} ErtsThrPrgrUnmanagedRefc;
+
typedef struct {
union {
ErtsThrPrgrMiscData data;
char align__[ERTS_ALC_CACHE_LINE_ALIGN_SIZE(
sizeof(ErtsThrPrgrMiscData))];
} misc;
+ ErtsThrPrgrUnmanagedRefc umrefc[2];
ErtsThrPrgrArray *thr;
struct {
int no;
@@ -346,7 +354,9 @@ init_tmp_thr_prgr_data(ErtsThrPrgrData *tpd)
tpd->is_managed = 0;
tpd->is_blocking = 0;
tpd->is_temporary = 1;
-
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ tpd->is_delaying = 0;
+#endif
erts_tsd_set(erts_thr_prgr_data_key__, (void *) tpd);
}
@@ -461,6 +471,12 @@ erts_thr_progress_init(int no_schedulers, int managed, int unmanaged)
erts_atomic32_init_nob(&intrnl->misc.data.managed_count, 0);
erts_atomic32_init_nob(&intrnl->misc.data.managed_id, no_schedulers);
erts_atomic32_init_nob(&intrnl->misc.data.unmanaged_id, -1);
+ intrnl->misc.data.chk_next_ix = 0;
+ intrnl->misc.data.umrefc_ix.waiting = -1;
+ erts_atomic32_init_nob(&intrnl->misc.data.umrefc_ix.current, 0);
+
+ erts_atomic_init_nob(&intrnl->umrefc[0].refc, (erts_aint_t) 0);
+ erts_atomic_init_nob(&intrnl->umrefc[1].refc, (erts_aint_t) 0);
intrnl->thr = (ErtsThrPrgrArray *) ptr;
ptr += thr_arr_sz;
@@ -547,6 +563,9 @@ erts_thr_progress_register_unmanaged_thread(ErtsThrPrgrCallbacks *callbacks)
tpd->is_managed = 0;
tpd->is_blocking = is_blocking;
tpd->is_temporary = 0;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ tpd->is_delaying = 0;
+#endif
ASSERT(tpd->id >= 0);
if (tpd->id >= intrnl->unmanaged.no)
erl_exit(ERTS_ABORT_EXIT,
@@ -600,6 +619,9 @@ erts_thr_progress_register_managed_thread(ErtsSchedulerData *esdp,
tpd->is_managed = 1;
tpd->is_blocking = is_blocking;
tpd->is_temporary = 0;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ tpd->is_delaying = 1;
+#endif
init_wakeup_request_array(&tpd->wakeup_request[0]);
@@ -607,8 +629,8 @@ erts_thr_progress_register_managed_thread(ErtsSchedulerData *esdp,
tpd->leader = 0;
tpd->active = 1;
- tpd->previous.local = 0;
- tpd->previous.current = ERTS_THR_PRGR_VAL_WAITING;
+ tpd->confirmed = 0;
+ tpd->leader_state.current = ERTS_THR_PRGR_VAL_WAITING;
erts_tsd_set(erts_thr_prgr_data_key__, (void *) tpd);
erts_atomic32_inc_nob(&intrnl->misc.data.lflgs);
@@ -651,60 +673,113 @@ leader_update(ErtsThrPrgrData *tpd)
block_thread(tpd);
}
else {
+ ErtsThrPrgrVal current;
+ int ix, chk_next_ix, umrefc_ix, my_ix, no_managed, waiting_unmanaged;
erts_aint32_t lflgs;
ErtsThrPrgrVal next;
- int ix, sz, make_progress;
+ erts_aint_t refc;
- if (tpd->previous.current == ERTS_THR_PRGR_VAL_WAITING) {
- /* Took over as leader from another thread */
- tpd->previous.current = read_acqb(&erts_thr_prgr__.current);
- tpd->previous.next = tpd->previous.current;
- tpd->previous.next++;
- if (tpd->previous.next == ERTS_THR_PRGR_VAL_WAITING)
- tpd->previous.next = 0;
- }
+ my_ix = tpd->id;
- if (tpd->previous.local == tpd->previous.current) {
- ErtsThrPrgrVal val = tpd->previous.current + 1;
- if (val == ERTS_THR_PRGR_VAL_WAITING)
- val = 0;
- tpd->previous.local = val;
- set_mb(&intrnl->thr[tpd->id].data.current, val);
+ if (tpd->leader_state.current == ERTS_THR_PRGR_VAL_WAITING) {
+ /* Took over as leader from another thread */
+ tpd->leader_state.current = read_nob(&erts_thr_prgr__.current);
+ tpd->leader_state.next = tpd->leader_state.current;
+ tpd->leader_state.next++;
+ if (tpd->leader_state.next == ERTS_THR_PRGR_VAL_WAITING)
+ tpd->leader_state.next = 0;
+ tpd->leader_state.chk_next_ix = intrnl->misc.data.chk_next_ix;
+ tpd->leader_state.umrefc_ix.waiting = intrnl->misc.data.umrefc_ix.waiting;
+ tpd->leader_state.umrefc_ix.current =
+ (int) erts_atomic32_read_nob(&intrnl->misc.data.umrefc_ix.current);
+
+ if (tpd->confirmed == tpd->leader_state.current) {
+ ErtsThrPrgrVal val = tpd->leader_state.current + 1;
+ if (val == ERTS_THR_PRGR_VAL_WAITING)
+ val = 0;
+ tpd->confirmed = val;
+ set_mb(&intrnl->thr[my_ix].data.current, val);
+ }
}
- next = tpd->previous.next;
- make_progress = 1;
- sz = intrnl->managed.no;
- for (ix = 0; ix < sz; ix++) {
- ErtsThrPrgrVal tmp;
- tmp = read_nob(&intrnl->thr[ix].data.current);
- if (tmp != next && tmp != ERTS_THR_PRGR_VAL_WAITING) {
- make_progress = 0;
- ASSERT(erts_thr_progress_has_passed__(next, tmp));
- break;
+ next = tpd->leader_state.next;
+
+ waiting_unmanaged = 0;
+ umrefc_ix = -1; /* Shut up annoying warning */
+
+ chk_next_ix = tpd->leader_state.chk_next_ix;
+ no_managed = intrnl->managed.no;
+ ASSERT(0 <= chk_next_ix && chk_next_ix <= no_managed);
+ /* Check manged threads */
+ if (chk_next_ix < no_managed) {
+ for (ix = chk_next_ix; ix < no_managed; ix++) {
+ ErtsThrPrgrVal tmp;
+ if (ix == my_ix)
+ continue;
+ tmp = read_nob(&intrnl->thr[ix].data.current);
+ if (tmp != next && tmp != ERTS_THR_PRGR_VAL_WAITING) {
+ tpd->leader_state.chk_next_ix = ix;
+ ASSERT(erts_thr_progress_has_passed__(next, tmp));
+ goto done;
+ }
}
}
- if (make_progress) {
- ErtsThrPrgrVal current = next;
+ /* Check unmanged threads */
+ waiting_unmanaged = tpd->leader_state.umrefc_ix.waiting != -1;
+ umrefc_ix = (waiting_unmanaged
+ ? tpd->leader_state.umrefc_ix.waiting
+ : tpd->leader_state.umrefc_ix.current);
+ refc = erts_atomic_read_nob(&intrnl->umrefc[umrefc_ix].refc);
+ ASSERT(refc >= 0);
+ if (refc != 0) {
+ int new_umrefc_ix;
+
+ if (waiting_unmanaged)
+ goto done;
+
+ new_umrefc_ix = (umrefc_ix + 1) & 0x1;
+ tpd->leader_state.umrefc_ix.waiting = umrefc_ix;
+ tpd->leader_state.chk_next_ix = no_managed;
+ erts_atomic32_set_nob(&intrnl->misc.data.umrefc_ix.current,
+ (erts_aint32_t) new_umrefc_ix);
+ ETHR_MEMBAR(ETHR_StoreLoad);
+ refc = erts_atomic_read_nob(&intrnl->umrefc[umrefc_ix].refc);
+ ASSERT(refc >= 0);
+ waiting_unmanaged = 1;
+ if (refc != 0)
+ goto done;
+ }
- next++;
- if (next == ERTS_THR_PRGR_VAL_WAITING)
- next = 0;
+ /* Make progress */
+ current = next;
- set_nob(&intrnl->thr[tpd->id].data.current, next);
- set_mb(&erts_thr_prgr__.current, current);
- tpd->previous.local = next;
- tpd->previous.next = next;
- tpd->previous.current = current;
+ next++;
+ if (next == ERTS_THR_PRGR_VAL_WAITING)
+ next = 0;
+
+ set_nob(&intrnl->thr[my_ix].data.current, next);
+ set_mb(&erts_thr_prgr__.current, current);
+ tpd->confirmed = next;
+ tpd->leader_state.next = next;
+ tpd->leader_state.current = current;
#if ERTS_THR_PRGR_PRINT_VAL
- if (current % 1000 == 0)
- erts_fprintf(stderr, "%b64u\n", current);
+ if (current % 1000 == 0)
+ erts_fprintf(stderr, "%b64u\n", current);
#endif
- handle_wakeup_requests(current);
+ handle_wakeup_requests(current);
+
+ if (waiting_unmanaged) {
+ waiting_unmanaged = 0;
+ tpd->leader_state.umrefc_ix.waiting = -1;
+ erts_atomic32_read_band_nob(&intrnl->misc.data.lflgs,
+ ~ERTS_THR_PRGR_LFLG_WAITING_UM);
}
+ tpd->leader_state.chk_next_ix = 0;
+
+ done:
if (tpd->active) {
lflgs = erts_atomic32_read_nob(&intrnl->misc.data.lflgs);
@@ -712,20 +787,44 @@ leader_update(ErtsThrPrgrData *tpd)
(void) block_thread(tpd);
}
else {
+ int force_wakeup_check = 0;
+ erts_aint32_t set_flags = ERTS_THR_PRGR_LFLG_NO_LEADER;
tpd->leader = 0;
- tpd->previous.current = ERTS_THR_PRGR_VAL_WAITING;
+ tpd->leader_state.current = ERTS_THR_PRGR_VAL_WAITING;
#if ERTS_THR_PRGR_PRINT_LEADER
erts_fprintf(stderr, "L <- %d\n", tpd->id);
#endif
ERTS_THR_PROGRESS_STATE_DEBUG_SET_LEADER(tpd->id, 0);
+ if (waiting_unmanaged)
+ set_flags |= ERTS_THR_PRGR_LFLG_WAITING_UM;
+
lflgs = erts_atomic32_read_bor_relb(&intrnl->misc.data.lflgs,
- ERTS_THR_PRGR_LFLG_NO_LEADER);
+ set_flags);
+ lflgs |= set_flags;
if (lflgs & ERTS_THR_PRGR_LFLG_BLOCK)
lflgs = block_thread(tpd);
- if (ERTS_THR_PRGR_LFLGS_ACTIVE(lflgs) == 0 && got_sched_wakeups())
+
+ if (waiting_unmanaged) {
+ /* Need to check umrefc again */
+ ETHR_MEMBAR(ETHR_StoreLoad);
+ refc = erts_atomic_read_nob(&intrnl->umrefc[umrefc_ix].refc);
+ if (refc == 0) {
+ /* Need to force wakeup check */
+ force_wakeup_check = 1;
+ }
+ }
+
+ if ((force_wakeup_check
+ || ((lflgs & (ERTS_THR_PRGR_LFLG_NO_LEADER
+ | ERTS_THR_PRGR_LFLG_WAITING_UM
+ | ERTS_THR_PRGR_LFLG_ACTIVE_MASK))
+ == ERTS_THR_PRGR_LFLG_NO_LEADER))
+ && got_sched_wakeups()) {
+ /* Someone need to make progress */
wakeup_managed(0);
+ }
}
}
@@ -744,11 +843,11 @@ update(ErtsThrPrgrData *tpd)
erts_aint32_t lflgs;
res = 0;
val = read_acqb(&erts_thr_prgr__.current);
- if (tpd->previous.local == val) {
+ if (tpd->confirmed == val) {
val++;
if (val == ERTS_THR_PRGR_VAL_WAITING)
val = 0;
- tpd->previous.local = val;
+ tpd->confirmed = val;
set_mb(&intrnl->thr[tpd->id].data.current, val);
}
@@ -801,12 +900,19 @@ erts_thr_progress_prepare_wait(ErtsSchedulerData *esdp)
block_count_dec();
- tpd->previous.local = ERTS_THR_PRGR_VAL_WAITING;
+ tpd->confirmed = ERTS_THR_PRGR_VAL_WAITING;
set_mb(&intrnl->thr[tpd->id].data.current, ERTS_THR_PRGR_VAL_WAITING);
lflgs = erts_atomic32_read_nob(&intrnl->misc.data.lflgs);
- if (ERTS_THR_PRGR_LFLGS_ALL_WAITING(lflgs) && got_sched_wakeups())
- wakeup_managed(0); /* Someone need to make progress */
+
+ if ((lflgs & (ERTS_THR_PRGR_LFLG_NO_LEADER
+ | ERTS_THR_PRGR_LFLG_WAITING_UM
+ | ERTS_THR_PRGR_LFLG_ACTIVE_MASK))
+ == ERTS_THR_PRGR_LFLG_NO_LEADER
+ && got_sched_wakeups()) {
+ /* Someone need to make progress */
+ wakeup_managed(0);
+ }
}
void
@@ -828,7 +934,7 @@ erts_thr_progress_finalize_wait(ErtsSchedulerData *esdp)
val++;
if (val == ERTS_THR_PRGR_VAL_WAITING)
val = 0;
- tpd->previous.local = val;
+ tpd->confirmed = val;
set_mb(&intrnl->thr[tpd->id].data.current, val);
val = read_acqb(&erts_thr_prgr__.current);
if (current == val)
@@ -875,6 +981,68 @@ erts_thr_progress_active(ErtsSchedulerData *esdp, int on)
}
+static ERTS_INLINE void
+unmanaged_continue(ErtsThrPrgrDelayHandle handle)
+{
+ int umrefc_ix = (int) handle;
+ erts_aint_t refc;
+
+ ASSERT(umrefc_ix == 0 || umrefc_ix == 1);
+ refc = erts_atomic_dec_read_relb(&intrnl->umrefc[umrefc_ix].refc);
+ ASSERT(refc >= 0);
+ if (refc == 0) {
+ erts_aint_t lflgs;
+ ERTS_THR_READ_MEMORY_BARRIER;
+ lflgs = erts_atomic32_read_nob(&intrnl->misc.data.lflgs);
+ if ((lflgs & (ERTS_THR_PRGR_LFLG_NO_LEADER
+ | ERTS_THR_PRGR_LFLG_WAITING_UM
+ | ERTS_THR_PRGR_LFLG_ACTIVE_MASK))
+ == (ERTS_THR_PRGR_LFLG_NO_LEADER|ERTS_THR_PRGR_LFLG_WAITING_UM)
+ && got_sched_wakeups()) {
+ /* Others waiting for us... */
+ wakeup_managed(0);
+ }
+ }
+}
+
+void
+erts_thr_progress_unmanaged_continue__(ErtsThrPrgrDelayHandle handle)
+{
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ ErtsThrPrgrData *tpd = perhaps_thr_prgr_data(NULL);
+ ERTS_LC_ASSERT(tpd && tpd->is_delaying);
+ tpd->is_delaying = 0;
+ return_tmp_thr_prgr_data(tpd);
+#endif
+ ASSERT(!erts_thr_progress_is_managed_thread());
+
+ unmanaged_continue(handle);
+}
+
+ErtsThrPrgrDelayHandle
+erts_thr_progress_unmanaged_delay__(void)
+{
+ int umrefc_ix;
+ ASSERT(!erts_thr_progress_is_managed_thread());
+ umrefc_ix = (int) erts_atomic32_read_acqb(&intrnl->misc.data.umrefc_ix.current);
+ while (1) {
+ int tmp_ix;
+ erts_atomic_inc_acqb(&intrnl->umrefc[umrefc_ix].refc);
+ tmp_ix = (int) erts_atomic32_read_acqb(&intrnl->misc.data.umrefc_ix.current);
+ if (tmp_ix == umrefc_ix)
+ break;
+ unmanaged_continue(umrefc_ix);
+ umrefc_ix = tmp_ix;
+ }
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ {
+ ErtsThrPrgrData *tpd = tmp_thr_prgr_data(NULL);
+ tpd->is_delaying = 1;
+ }
+#endif
+ return (ErtsThrPrgrDelayHandle) umrefc_ix;
+}
+
static ERTS_INLINE int
has_reached_wakeup(ErtsThrPrgrVal wakeup)
{
@@ -931,7 +1099,7 @@ request_wakeup_managed(ErtsThrPrgrData *tpd, ErtsThrPrgrVal value)
*/
ASSERT(tpd->is_managed);
- ASSERT(tpd->previous.local != ERTS_THR_PRGR_VAL_WAITING);
+ ASSERT(tpd->confirmed != ERTS_THR_PRGR_VAL_WAITING);
if (has_reached_wakeup(value)) {
wakeup_managed(tpd->id);
@@ -946,7 +1114,7 @@ request_wakeup_managed(ErtsThrPrgrData *tpd, ErtsThrPrgrVal value)
tpd->wakeup_request[wix]));
- if (tpd->previous.local == value) {
+ if (tpd->confirmed == value) {
/*
* We have already confirmed this value. We need to request
* wakeup for a value later than our latest confirmed value in
diff --git a/erts/emulator/beam/erl_thr_progress.h b/erts/emulator/beam/erl_thr_progress.h
index 89486b065b..1416aa6166 100644
--- a/erts/emulator/beam/erl_thr_progress.h
+++ b/erts/emulator/beam/erl_thr_progress.h
@@ -53,9 +53,22 @@ typedef Uint64 ErtsThrPrgrVal;
#define ERTS_THR_PRGR_WAKEUP_DATA_SIZE 4 /* Need to be an even power of 2. */
typedef struct {
+ ErtsThrPrgrVal next;
+ ErtsThrPrgrVal current;
+ int chk_next_ix;
+ struct {
+ int current;
+ int waiting;
+ } umrefc_ix;
+} ErtsThrPrgrLeaderState;
+
+typedef struct {
int id;
int is_managed;
int is_blocking;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ int is_delaying; /* managed is always delaying */
+#endif
int is_temporary;
/* --- Part below only for registered threads --- */
@@ -66,11 +79,8 @@ typedef struct {
int leader; /* Needs to be first in the managed threads part */
int active;
- struct {
- ErtsThrPrgrVal local;
- ErtsThrPrgrVal next;
- ErtsThrPrgrVal current;
- } previous;
+ ErtsThrPrgrVal confirmed;
+ ErtsThrPrgrLeaderState leader_state;
} ErtsThrPrgrData;
void erts_thr_progress_fatal_error_block(SWord timeout,
@@ -78,6 +88,16 @@ void erts_thr_progress_fatal_error_block(SWord timeout,
#endif /* ERTS_SMP */
+typedef struct ErtsThrPrgrLaterOp_ ErtsThrPrgrLaterOp;
+struct ErtsThrPrgrLaterOp_ {
+#ifdef ERTS_SMP
+ ErtsThrPrgrVal later;
+#endif
+ void (*func)(void *);
+ void *data;
+ ErtsThrPrgrLaterOp *next;
+};
+
#endif
#if !defined(ERL_THR_PROGRESS_H__) && !defined(ERL_THR_PROGRESS_TSD_TYPE_ONLY)
@@ -111,6 +131,11 @@ typedef struct {
ERTS_THR_PRGR_ATOMIC current;
} ErtsThrPrgr;
+typedef int ErtsThrPrgrDelayHandle;
+#define ERTS_THR_PRGR_DHANDLE_MANAGED ((ErtsThrPrgrDelayHandle) -1)
+/* ERTS_THR_PRGR_DHANDLE_MANAGED implies managed thread */
+#define ERTS_THR_PRGR_DHANDLE_INVALID ((ErtsThrPrgrDelayHandle) -2)
+
extern ErtsThrPrgr erts_thr_prgr__;
void erts_thr_progress_pre_init(void);
@@ -126,6 +151,8 @@ int erts_thr_progress_update(ErtsSchedulerData *esdp);
int erts_thr_progress_leader_update(ErtsSchedulerData *esdp);
void erts_thr_progress_prepare_wait(ErtsSchedulerData *esdp);
void erts_thr_progress_finalize_wait(ErtsSchedulerData *esdp);
+ErtsThrPrgrDelayHandle erts_thr_progress_unmanaged_delay__(void);
+void erts_thr_progress_unmanaged_continue__(int umrefc_ix);
void erts_thr_progress_dbg_print_state(void);
@@ -138,6 +165,11 @@ ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_prgr_read_acqb__(ERTS_THR_PRGR_ATOMIC *a
ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_prgr_read_mb__(ERTS_THR_PRGR_ATOMIC *atmc);
ERTS_GLB_INLINE int erts_thr_progress_is_managed_thread(void);
+ERTS_GLB_INLINE ErtsThrPrgrDelayHandle erts_thr_progress_unmanaged_delay(void);
+ERTS_GLB_INLINE void erts_thr_progress_unmanaged_continue(ErtsThrPrgrDelayHandle handle);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ERTS_GLB_INLINE int erts_thr_progress_lc_is_delaying(void);
+#endif
ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current_to_later__(ErtsThrPrgrVal val);
ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_later(ErtsSchedulerData *);
ERTS_GLB_INLINE ErtsThrPrgrVal erts_thr_progress_current(void);
@@ -219,6 +251,35 @@ erts_thr_progress_is_managed_thread(void)
return tpd && tpd->is_managed;
}
+ERTS_GLB_INLINE ErtsThrPrgrDelayHandle
+erts_thr_progress_unmanaged_delay(void)
+{
+ if (erts_thr_progress_is_managed_thread())
+ return ERTS_THR_PRGR_DHANDLE_MANAGED; /* Nothing to do */
+ else
+ return erts_thr_progress_unmanaged_delay__();
+}
+
+ERTS_GLB_INLINE void
+erts_thr_progress_unmanaged_continue(ErtsThrPrgrDelayHandle handle)
+{
+ ASSERT(handle != ERTS_THR_PRGR_DHANDLE_MANAGED
+ || erts_thr_progress_is_managed_thread());
+ if (handle != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_thr_progress_unmanaged_continue__(handle);
+}
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+
+ERTS_GLB_INLINE int
+erts_thr_progress_lc_is_delaying(void)
+{
+ ErtsThrPrgrData *tpd = erts_tsd_get(erts_thr_prgr_data_key__);
+ return tpd && tpd->is_delaying;
+}
+
+#endif
+
ERTS_GLB_INLINE ErtsThrPrgrVal
erts_thr_progress_current_to_later__(ErtsThrPrgrVal val)
{
@@ -238,7 +299,7 @@ erts_thr_progress_later(ErtsSchedulerData *esdp)
if (esdp) {
tpd = &esdp->thr_progress_data;
managed_thread:
- val = tpd->previous.local;
+ val = tpd->confirmed;
ERTS_THR_MEMORY_BARRIER;
}
else {
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index ee47c98009..1dc3ffeb3c 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -258,10 +258,6 @@
#include "sys.h"
-typedef struct { SWord sint[2]; } erts_no_dw_atomic_t;
-typedef SWord erts_no_atomic_t;
-typedef Sint32 erts_no_atomic32_t;
-
#ifdef USE_THREADS
#define ETHR_TRY_INLINE_FUNCS
@@ -411,12 +407,15 @@ typedef struct {
typedef int erts_rwmtx_t;
typedef int erts_tsd_key_t;
typedef int erts_tse_t;
-#define erts_dw_aint_t erts_no_dw_atomic_t
-#define erts_dw_atomic_t erts_no_dw_atomic_t
-#define erts_aint_t SWord
-#define erts_atomic_t erts_no_atomic_t
-#define erts_aint32_t Sint32
-#define erts_atomic32_t erts_no_atomic32_t
+
+typedef struct { SWord sint[2]; } erts_dw_aint_t;
+typedef SWord erts_aint_t;
+typedef Sint32 erts_aint32_t;
+
+#define erts_dw_atomic_t erts_dw_aint_t
+#define erts_atomic_t erts_aint_t
+#define erts_atomic32_t erts_aint32_t
+
#if __GNUC__ > 2
typedef struct { } erts_spinlock_t;
typedef struct { } erts_rwlock_t;
@@ -425,6 +424,14 @@ typedef struct { int gcc_is_buggy; } erts_spinlock_t;
typedef struct { int gcc_is_buggy; } erts_rwlock_t;
#endif
+#ifdef WORDS_BIGENDIAN
+#define ERTS_DW_AINT_LOW_WORD 1
+#define ERTS_DW_AINT_HIGH_WORD 0
+#else
+#define ERTS_DW_AINT_LOW_WORD 0
+#define ERTS_DW_AINT_HIGH_WORD 1
+#endif
+
#define ERTS_MTX_INITER 0
#define ERTS_CND_INITER 0
#define ERTS_THR_INIT_DATA_DEF_INITER 0
@@ -433,6 +440,10 @@ typedef struct { int gcc_is_buggy; } erts_rwlock_t;
#endif /* #ifdef USE_THREADS */
+#define erts_no_dw_atomic_t erts_dw_aint_t
+#define erts_no_atomic_t erts_aint_t
+#define erts_no_atomic32_t erts_aint32_t
+
#define ERTS_AINT_NULL ((erts_aint_t) NULL)
#define ERTS_AINT_T_MAX (~(((erts_aint_t) 1) << (sizeof(erts_aint_t)*8-1)))
@@ -522,6 +533,9 @@ ERTS_GLB_INLINE erts_aint_t erts_no_atomic_xchg(erts_no_atomic_t *xchgp,
ERTS_GLB_INLINE erts_aint_t erts_no_atomic_cmpxchg(erts_no_atomic_t *xchgp,
erts_aint_t new,
erts_aint_t expected);
+ERTS_GLB_INLINE erts_aint_t erts_no_atomic_read_bset(erts_no_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
ERTS_GLB_INLINE void erts_no_atomic32_set(erts_no_atomic32_t *var,
erts_aint32_t i);
ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_read(erts_no_atomic32_t *var);
@@ -542,6 +556,9 @@ ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_xchg(erts_no_atomic32_t *xchgp,
ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_cmpxchg(erts_no_atomic32_t *xchgp,
erts_aint32_t new,
erts_aint32_t expected);
+ERTS_GLB_INLINE erts_aint32_t erts_no_atomic32_read_bset(erts_no_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
ERTS_GLB_INLINE void erts_spinlock_init_x_opt(erts_spinlock_t *lock,
char *name,
@@ -601,6 +618,78 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#ifdef USE_THREADS
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_nob(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_ddrb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_rb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_wb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_acqb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_relb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_mb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_nob(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_ddrb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_rb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_wb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_acqb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_relb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_mb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+#define ERTS_ATOMIC_BSET_IMPL__(Type, ReadOp, CmpxchgOp, VarP, Mask, Set) \
+do { \
+ Type act = ReadOp((VarP)); \
+ while (1) { \
+ Type exp = act; \
+ Type new = exp & ~(Mask); \
+ new |= ((Mask) & (Set)); \
+ act = CmpxchgOp((VarP), new, exp); \
+ if (act == exp) \
+ return act; \
+ } \
+} while (0)
+#endif
+
/*
* See "Documentation of atomics and memory barriers" at the top
* of this file for info on atomics.
@@ -659,6 +748,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_nob ethr_atomic_xchg
#define erts_atomic_cmpxchg_nob ethr_atomic_cmpxchg
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_nob(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic_init_mb ethr_atomic_init_mb
#define erts_atomic_set_mb ethr_atomic_set_mb
#define erts_atomic_read_mb ethr_atomic_read_mb
@@ -673,6 +775,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_mb ethr_atomic_xchg_mb
#define erts_atomic_cmpxchg_mb ethr_atomic_cmpxchg_mb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_mb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg_mb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic_init_acqb ethr_atomic_init_acqb
#define erts_atomic_set_acqb ethr_atomic_set_acqb
#define erts_atomic_read_acqb ethr_atomic_read_acqb
@@ -687,6 +802,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_acqb ethr_atomic_xchg_acqb
#define erts_atomic_cmpxchg_acqb ethr_atomic_cmpxchg_acqb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_acqb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg_acqb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic_init_relb ethr_atomic_init_relb
#define erts_atomic_set_relb ethr_atomic_set_relb
#define erts_atomic_read_relb ethr_atomic_read_relb
@@ -701,6 +829,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_relb ethr_atomic_xchg_relb
#define erts_atomic_cmpxchg_relb ethr_atomic_cmpxchg_relb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_relb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg_relb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic_init_ddrb ethr_atomic_init_ddrb
#define erts_atomic_set_ddrb ethr_atomic_set_ddrb
#define erts_atomic_read_ddrb ethr_atomic_read_ddrb
@@ -715,6 +856,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_ddrb ethr_atomic_xchg_ddrb
#define erts_atomic_cmpxchg_ddrb ethr_atomic_cmpxchg_ddrb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_ddrb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg_ddrb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic_init_rb ethr_atomic_init_rb
#define erts_atomic_set_rb ethr_atomic_set_rb
#define erts_atomic_read_rb ethr_atomic_read_rb
@@ -729,6 +883,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_rb ethr_atomic_xchg_rb
#define erts_atomic_cmpxchg_rb ethr_atomic_cmpxchg_rb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_rb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg_rb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic_init_wb ethr_atomic_init_wb
#define erts_atomic_set_wb ethr_atomic_set_wb
#define erts_atomic_read_wb ethr_atomic_read_wb
@@ -743,6 +910,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_xchg_wb ethr_atomic_xchg_wb
#define erts_atomic_cmpxchg_wb ethr_atomic_cmpxchg_wb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint_t
+erts_atomic_read_bset_wb(erts_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint_t,
+ ethr_atomic_read,
+ ethr_atomic_cmpxchg_wb,
+ var, mask, set);
+}
+#endif
+
/* 32-bit atomics */
#define erts_atomic32_init_nob ethr_atomic32_init
@@ -759,6 +939,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_nob ethr_atomic32_xchg
#define erts_atomic32_cmpxchg_nob ethr_atomic32_cmpxchg
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_nob(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic32_init_mb ethr_atomic32_init_mb
#define erts_atomic32_set_mb ethr_atomic32_set_mb
#define erts_atomic32_read_mb ethr_atomic32_read_mb
@@ -773,6 +966,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_mb ethr_atomic32_xchg_mb
#define erts_atomic32_cmpxchg_mb ethr_atomic32_cmpxchg_mb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_mb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg_mb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic32_init_acqb ethr_atomic32_init_acqb
#define erts_atomic32_set_acqb ethr_atomic32_set_acqb
#define erts_atomic32_read_acqb ethr_atomic32_read_acqb
@@ -787,6 +993,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_acqb ethr_atomic32_xchg_acqb
#define erts_atomic32_cmpxchg_acqb ethr_atomic32_cmpxchg_acqb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_acqb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg_acqb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic32_init_relb ethr_atomic32_init_relb
#define erts_atomic32_set_relb ethr_atomic32_set_relb
#define erts_atomic32_read_relb ethr_atomic32_read_relb
@@ -801,6 +1020,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_relb ethr_atomic32_xchg_relb
#define erts_atomic32_cmpxchg_relb ethr_atomic32_cmpxchg_relb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_relb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg_relb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic32_init_ddrb ethr_atomic32_init_ddrb
#define erts_atomic32_set_ddrb ethr_atomic32_set_ddrb
#define erts_atomic32_read_ddrb ethr_atomic32_read_ddrb
@@ -815,6 +1047,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_ddrb ethr_atomic32_xchg_ddrb
#define erts_atomic32_cmpxchg_ddrb ethr_atomic32_cmpxchg_ddrb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_ddrb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg_ddrb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic32_init_rb ethr_atomic32_init_rb
#define erts_atomic32_set_rb ethr_atomic32_set_rb
#define erts_atomic32_read_rb ethr_atomic32_read_rb
@@ -829,6 +1074,19 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_rb ethr_atomic32_xchg_rb
#define erts_atomic32_cmpxchg_rb ethr_atomic32_cmpxchg_rb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_rb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg_rb,
+ var, mask, set);
+}
+#endif
+
#define erts_atomic32_init_wb ethr_atomic32_init_wb
#define erts_atomic32_set_wb ethr_atomic32_set_wb
#define erts_atomic32_read_wb ethr_atomic32_read_wb
@@ -843,6 +1101,21 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_xchg_wb ethr_atomic32_xchg_wb
#define erts_atomic32_cmpxchg_wb ethr_atomic32_cmpxchg_wb
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_atomic32_read_bset_wb(erts_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ ERTS_ATOMIC_BSET_IMPL__(erts_aint32_t,
+ ethr_atomic32_read,
+ ethr_atomic32_cmpxchg_wb,
+ var, mask, set);
+}
+#endif
+
+#undef ERTS_ATOMIC_BSET_IMPL__
+
#else /* !USE_THREADS */
/* Double word size atomics */
@@ -897,6 +1170,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_nob erts_no_atomic_read_band
#define erts_atomic_xchg_nob erts_no_atomic_xchg
#define erts_atomic_cmpxchg_nob erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_nob erts_no_atomic_read_bset
#define erts_atomic_init_mb erts_no_atomic_set
#define erts_atomic_set_mb erts_no_atomic_set
@@ -911,6 +1185,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_mb erts_no_atomic_read_band
#define erts_atomic_xchg_mb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_mb erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_mb erts_no_atomic_read_bset
#define erts_atomic_init_acqb erts_no_atomic_set
#define erts_atomic_set_acqb erts_no_atomic_set
@@ -925,6 +1200,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_acqb erts_no_atomic_read_band
#define erts_atomic_xchg_acqb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_acqb erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_acqb erts_no_atomic_read_bset
#define erts_atomic_init_relb erts_no_atomic_set
#define erts_atomic_set_relb erts_no_atomic_set
@@ -939,6 +1215,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_relb erts_no_atomic_read_band
#define erts_atomic_xchg_relb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_relb erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_relb erts_no_atomic_read_bset
#define erts_atomic_init_ddrb erts_no_atomic_set
#define erts_atomic_set_ddrb erts_no_atomic_set
@@ -953,6 +1230,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_ddrb erts_no_atomic_read_band
#define erts_atomic_xchg_ddrb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_ddrb erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_ddrb erts_no_atomic_read_bset
#define erts_atomic_init_rb erts_no_atomic_set
#define erts_atomic_set_rb erts_no_atomic_set
@@ -967,6 +1245,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_rb erts_no_atomic_read_band
#define erts_atomic_xchg_rb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_rb erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_rb erts_no_atomic_read_bset
#define erts_atomic_init_wb erts_no_atomic_set
#define erts_atomic_set_wb erts_no_atomic_set
@@ -981,6 +1260,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic_read_band_wb erts_no_atomic_read_band
#define erts_atomic_xchg_wb erts_no_atomic_xchg
#define erts_atomic_cmpxchg_wb erts_no_atomic_cmpxchg
+#define erts_atomic_read_bset_wb erts_no_atomic_read_bset
/* 32-bit atomics */
@@ -997,6 +1277,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_nob erts_no_atomic32_read_band
#define erts_atomic32_xchg_nob erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_nob erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_nob erts_no_atomic32_read_bset
#define erts_atomic32_init_mb erts_no_atomic32_set
#define erts_atomic32_set_mb erts_no_atomic32_set
@@ -1011,6 +1292,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_mb erts_no_atomic32_read_band
#define erts_atomic32_xchg_mb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_mb erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_mb erts_no_atomic32_read_bset
#define erts_atomic32_init_acqb erts_no_atomic32_set
#define erts_atomic32_set_acqb erts_no_atomic32_set
@@ -1025,6 +1307,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_acqb erts_no_atomic32_read_band
#define erts_atomic32_xchg_acqb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_acqb erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_acqb erts_no_atomic32_read_bset
#define erts_atomic32_init_relb erts_no_atomic32_set
#define erts_atomic32_set_relb erts_no_atomic32_set
@@ -1039,6 +1322,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_relb erts_no_atomic32_read_band
#define erts_atomic32_xchg_relb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_relb erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_relb erts_no_atomic32_read_bset
#define erts_atomic32_init_ddrb erts_no_atomic32_set
#define erts_atomic32_set_ddrb erts_no_atomic32_set
@@ -1053,6 +1337,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_ddrb erts_no_atomic32_read_band
#define erts_atomic32_xchg_ddrb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_ddrb erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_ddrb erts_no_atomic32_read_bset
#define erts_atomic32_init_rb erts_no_atomic32_set
#define erts_atomic32_set_rb erts_no_atomic32_set
@@ -1067,6 +1352,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_rb erts_no_atomic32_read_band
#define erts_atomic32_xchg_rb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_rb erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_rb erts_no_atomic32_read_bset
#define erts_atomic32_init_wb erts_no_atomic32_set
#define erts_atomic32_set_wb erts_no_atomic32_set
@@ -1081,6 +1367,7 @@ ERTS_GLB_INLINE void erts_thr_sigwait(const sigset_t *set, int *sig);
#define erts_atomic32_read_band_wb erts_no_atomic32_read_band
#define erts_atomic32_xchg_wb erts_no_atomic32_xchg
#define erts_atomic32_cmpxchg_wb erts_no_atomic32_cmpxchg
+#define erts_atomic32_read_bset_wb erts_no_atomic32_read_bset
#endif /* !USE_THREADS */
@@ -1845,6 +2132,17 @@ erts_no_atomic_cmpxchg(erts_no_atomic_t *xchgp,
return old;
}
+ERTS_GLB_INLINE erts_aint_t
+erts_no_atomic_read_bset(erts_no_atomic_t *var,
+ erts_aint_t mask,
+ erts_aint_t set)
+{
+ erts_aint_t old = *var;
+ *var &= ~mask;
+ *var |= (mask & set);
+ return old;
+}
+
/* atomic32 */
ERTS_GLB_INLINE void
@@ -1932,6 +2230,17 @@ erts_no_atomic32_cmpxchg(erts_no_atomic32_t *xchgp,
return old;
}
+ERTS_GLB_INLINE erts_aint32_t
+erts_no_atomic32_read_bset(erts_no_atomic32_t *var,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ erts_aint32_t old = *var;
+ *var &= ~mask;
+ *var |= (mask & set);
+ return old;
+}
+
/* spinlock */
ERTS_GLB_INLINE void
diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h
index 6c6e193818..4bbdcaa3e3 100644
--- a/erts/emulator/beam/erl_time.h
+++ b/erts/emulator/beam/erl_time.h
@@ -118,9 +118,11 @@ ERTS_GLB_INLINE void erts_do_time_add(erts_short_time_t elapsed)
void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec);
#endif
+typedef UWord erts_approx_time_t;
+erts_approx_time_t erts_get_approx_time(void);
+
void erts_get_timeval(SysTimeval *tv);
erts_time_t erts_get_time(void);
-void erts_get_emu_time(SysTimeval *);
ERTS_GLB_INLINE int erts_cmp_timeval(SysTimeval *t1p, SysTimeval *t2p);
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index 04147408d5..3272a5326d 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -91,6 +91,41 @@ static SysTimeval then; /* Used in get_now */
static SysTimeval last_emu_time; /* Used in erts_get_emu_time() */
SysTimeval erts_first_emu_time; /* Used in erts_get_emu_time() */
+union {
+ erts_smp_atomic_t time;
+ char align[ERTS_CACHE_LINE_SIZE];
+} approx erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static void
+init_approx_time(void)
+{
+ erts_smp_atomic_init_nob(&approx.time, 0);
+}
+
+static ERTS_INLINE erts_approx_time_t
+get_approx_time(void)
+{
+ return (erts_approx_time_t) erts_smp_atomic_read_nob(&approx.time);
+}
+
+static ERTS_INLINE void
+update_approx_time(SysTimeval *tv)
+{
+ erts_approx_time_t new_secs = (erts_approx_time_t) tv->tv_sec;
+ erts_approx_time_t old_secs = get_approx_time();
+ if (old_secs != new_secs)
+ erts_smp_atomic_set_nob(&approx.time, new_secs);
+}
+
+/*
+ * erts_get_approx_time() returns an *approximate* time
+ * in seconds. NOTE that this time may jump backwards!!!
+ */
+erts_approx_time_t
+erts_get_approx_time(void)
+{
+ return get_approx_time();
+}
#ifdef HAVE_GETHRTIME
@@ -398,6 +433,8 @@ erts_init_time_sup(void)
{
erts_smp_mtx_init(&erts_timeofday_mtx, "timeofday");
+ init_approx_time();
+
last_emu_time.tv_sec = 0;
last_emu_time.tv_usec = 0;
@@ -417,7 +454,7 @@ erts_init_time_sup(void)
gtv = inittv;
then.tv_sec = then.tv_usec = 0;
- erts_get_emu_time(&erts_first_emu_time);
+ erts_deliver_time();
return CLOCK_RESOLUTION;
}
@@ -883,6 +920,8 @@ get_now(Uint* megasec, Uint* sec, Uint* microsec)
*megasec = (Uint) (now.tv_sec / 1000000);
*sec = (Uint) (now.tv_sec % 1000000);
*microsec = (Uint) (now.tv_usec);
+
+ update_approx_time(&now);
}
void
@@ -895,6 +934,8 @@ get_sys_now(Uint* megasec, Uint* sec, Uint* microsec)
*megasec = (Uint) (now.tv_sec / 1000000);
*sec = (Uint) (now.tv_sec % 1000000);
*microsec = (Uint) (now.tv_usec);
+
+ update_approx_time(&now);
}
@@ -911,6 +952,8 @@ void erts_deliver_time(void) {
do_erts_deliver_time(&now);
erts_smp_mtx_unlock(&erts_timeofday_mtx);
+
+ update_approx_time(&now);
}
/* get *real* time (not ticks) remaining until next timeout - if there
@@ -959,6 +1002,7 @@ void erts_get_timeval(SysTimeval *tv)
erts_smp_mtx_lock(&erts_timeofday_mtx);
get_tolerant_timeofday(tv);
erts_smp_mtx_unlock(&erts_timeofday_mtx);
+ update_approx_time(tv);
}
erts_time_t
@@ -971,7 +1015,9 @@ erts_get_time(void)
get_tolerant_timeofday(&sys_tv);
erts_smp_mtx_unlock(&erts_timeofday_mtx);
-
+
+ update_approx_time(&sys_tv);
+
return sys_tv.tv_sec;
}
@@ -987,38 +1033,3 @@ void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec) {
*sec = (Uint)(tp.tv_sec % 1000000);
}
#endif
-
-
-/*
- * erts_get_emu_time() is similar to get_now(). You will
- * always get different times from erts_get_emu_time(), but they
- * may equal a time from get_now().
- *
- * erts_get_emu_time() is only used internally in the emulator in
- * order to order emulator internal events.
- */
-
-void
-erts_get_emu_time(SysTimeval *this_emu_time_p)
-{
- erts_smp_mtx_lock(&erts_timeofday_mtx);
-
- get_tolerant_timeofday(this_emu_time_p);
-
- /* Make sure time is later than last */
- if (last_emu_time.tv_sec > this_emu_time_p->tv_sec ||
- (last_emu_time.tv_sec == this_emu_time_p->tv_sec
- && last_emu_time.tv_usec >= this_emu_time_p->tv_usec)) {
- *this_emu_time_p = last_emu_time;
- this_emu_time_p->tv_usec++;
- }
- /* Check for carry from above + general reasonability */
- if (this_emu_time_p->tv_usec >= 1000000) {
- this_emu_time_p->tv_usec = 0;
- this_emu_time_p->tv_sec++;
- }
-
- last_emu_time = *this_emu_time_p;
-
- erts_smp_mtx_unlock(&erts_timeofday_mtx);
-}
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 009ca1eb52..848877d43e 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -44,9 +44,9 @@
#undef DEBUG_PRINTOUTS
#endif
-extern Eterm beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */
-extern Eterm beam_return_trace[1]; /* OpCode(i_return_trace) */
-extern Eterm beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
+extern BeamInstr beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */
+extern BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */
+extern BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
/* Pseudo export entries. Never filled in with data, only used to
yield unique pointers of the correct type. */
@@ -64,7 +64,7 @@ int erts_cpu_timestamp;
#endif
static erts_smp_mtx_t smq_mtx;
-static erts_smp_mtx_t sys_trace_mtx;
+static erts_smp_rwmtx_t sys_trace_rwmtx;
enum ErtsSysMsgType {
SYS_MSG_TYPE_UNDEFINED,
@@ -91,7 +91,12 @@ static void init_sys_msg_dispatcher(void);
#endif
void erts_init_trace(void) {
- erts_smp_mtx_init(&sys_trace_mtx, "sys_tracers");
+ erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+ rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+ rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+
+ erts_smp_rwmtx_init_opt(&sys_trace_rwmtx, &rwmtx_opts, "sys_tracers");
+
#ifdef HAVE_ERTS_NOW_CPU
erts_cpu_timestamp = 0;
#endif
@@ -151,8 +156,8 @@ do { (RES) = (TPID); } while(0)
#define ERTS_TRACER_REF_TYPE Process *
#define ERTS_GET_TRACER_REF(RES, TPID, TRACEE_FLGS) \
do { \
- (RES) = process_tab[internal_pid_index((TPID))]; \
- if (INVALID_PID((RES), (TPID)) || !((RES)->trace_flags & F_TRACER)) { \
+ (RES) = erts_proc_lookup((TPID)); \
+ if (!(RES) || !(ERTS_TRACE_FLAGS((RES)) & F_TRACER)) { \
(TPID) = NIL; \
(TRACEE_FLGS) &= ~TRACEE_FLAGS; \
return; \
@@ -169,10 +174,10 @@ erts_system_profile_setup_active_schedulers(void)
active_sched = erts_active_schedulers();
}
-void
-erts_trace_check_exiting(Eterm exiting)
+static void
+exiting_reset(Eterm exiting)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
if (exiting == default_tracer) {
default_tracer = NIL;
default_trace_flags &= TRACEE_FLAGS;
@@ -202,29 +207,49 @@ erts_trace_check_exiting(Eterm exiting)
erts_system_profile_clear(NULL);
#endif
}
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
+}
+
+void
+erts_trace_check_exiting(Eterm exiting)
+{
+ int reset = 0;
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
+ if (exiting == default_tracer)
+ reset = 1;
+ else if (exiting == system_seq_tracer)
+ reset = 1;
+ else if (exiting == system_monitor)
+ reset = 1;
+ else if (exiting == system_profile)
+ reset = 1;
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
+ if (reset)
+ exiting_reset(exiting);
+}
+
+static ERTS_INLINE int
+is_valid_tracer(Eterm tracer)
+{
+ return erts_proc_lookup(tracer) || erts_is_valid_tracer_port(tracer);
}
Eterm
erts_set_system_seq_tracer(Process *c_p, ErtsProcLocks c_p_locks, Eterm new)
{
- Eterm old = THE_NON_VALUE;
+ Eterm old;
- if (new != am_false) {
- if (!erts_pid2proc(c_p, c_p_locks, new, 0)
- && !erts_is_valid_tracer_port(new)) {
- return old;
- }
- }
+ if (new != am_false && !is_valid_tracer(new))
+ return THE_NON_VALUE;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
old = system_seq_tracer;
system_seq_tracer = new;
#ifdef DEBUG_PRINTOUTS
erts_fprintf(stderr, "set seq tracer new=%T old=%T\n", new, old);
#endif
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
return old;
}
@@ -232,12 +257,12 @@ Eterm
erts_get_system_seq_tracer(void)
{
Eterm st;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
st = system_seq_tracer;
#ifdef DEBUG_PRINTOUTS
erts_fprintf(stderr, "get seq tracer %T\n", st);
#endif
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
return st;
}
@@ -250,7 +275,7 @@ get_default_tracing(Uint *flagsp, Eterm *tracerp)
if (is_nil(default_tracer)) {
default_trace_flags &= ~TRACEE_FLAGS;
} else if (is_internal_pid(default_tracer)) {
- if (!erts_pid2proc(NULL, 0, default_tracer, 0)) {
+ if (!erts_proc_lookup(default_tracer)) {
reset_tracer:
default_trace_flags &= ~TRACEE_FLAGS;
default_tracer = NIL;
@@ -270,7 +295,7 @@ get_default_tracing(Uint *flagsp, Eterm *tracerp)
void
erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
if (flagsp) {
if (setflags)
default_trace_flags |= *flagsp;
@@ -280,48 +305,48 @@ erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp)
if (tracerp)
default_tracer = *tracerp;
get_default_tracing(flagsp, tracerp);
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
}
void
erts_get_default_tracing(Uint *flagsp, Eterm *tracerp)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
get_default_tracing(flagsp, tracerp);
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
}
void
erts_set_system_monitor(Eterm monitor)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
system_monitor = monitor;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
}
Eterm
erts_get_system_monitor(void)
{
Eterm monitor;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
monitor = system_monitor;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
return monitor;
}
/* Performance monitoring */
void erts_set_system_profile(Eterm profile) {
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
system_profile = profile;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
}
Eterm
erts_get_system_profile(void) {
Eterm profile;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
profile = system_profile;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
return profile;
}
@@ -384,13 +409,9 @@ WRITE_SYS_MSG_TO_PORT(Eterm unused_to,
}
#ifndef ERTS_SMP
- if (!INVALID_TRACER_PORT(trace_port, trace_port->id)) {
+ if (!INVALID_TRACER_PORT(trace_port, trace_port->common.id))
#endif
erts_raw_port_command(trace_port, buffer, ptr-buffer);
-#ifndef ERTS_SMP
- erts_port_release(trace_port);
- }
-#endif
erts_free(ERTS_ALC_T_TMP, (void *) buffer);
}
@@ -420,7 +441,7 @@ do_send_schedfix_to_port(Port *trace_port, Eterm pid, Eterm timestamp) {
message = TUPLE5(hp, am_trace_ts, pid, am_out, mfarity, timestamp);
/* Note, hp is deliberately NOT incremented since it will be reused */
- do_send_to_port(trace_port->id,
+ do_send_to_port(trace_port->common.id,
trace_port,
pid,
SYS_MSG_TYPE_UNDEFINED,
@@ -430,7 +451,7 @@ do_send_schedfix_to_port(Port *trace_port, Eterm pid, Eterm timestamp) {
hp += 5;
hp = patch_ts(message, hp);
- do_send_to_port(trace_port->id,
+ do_send_to_port(trace_port->common.id,
trace_port,
pid,
SYS_MSG_TYPE_UNDEFINED,
@@ -465,13 +486,13 @@ send_to_port(Process *c_p, Eterm message,
trace_port = NULL;
#else
- if (is_not_internal_port(*tracer_pid))
- goto invalid_tracer_port;
- trace_port = &erts_port[internal_port_index(*tracer_pid)];
+ trace_port = erts_id2port_sflgs(*tracer_pid,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
- if (INVALID_TRACER_PORT(trace_port, *tracer_pid)) {
- invalid_tracer_port:
+ if (!trace_port) {
*tracee_flags &= ~TRACEE_FLAGS;
*tracer_pid = NIL;
return;
@@ -487,10 +508,11 @@ send_to_port(Process *c_p, Eterm message,
#endif
do_send_to_port(*tracer_pid,
trace_port,
- c_p ? c_p->id : NIL,
+ c_p ? c_p->common.id : NIL,
SYS_MSG_TYPE_TRACE,
message);
#ifndef ERTS_SMP
+ erts_port_release(trace_port);
return;
}
@@ -521,7 +543,7 @@ send_to_port(Process *c_p, Eterm message,
trace_port->control_flags &= ~PORT_CONTROL_FLAG_HEAVY;
do_send_to_port(*tracer_pid,
trace_port,
- c_p ? c_p->id : NIL,
+ c_p ? c_p->common.id : NIL,
SYS_MSG_TYPE_TRACE,
message);
@@ -535,8 +557,11 @@ send_to_port(Process *c_p, Eterm message,
* just after writning the real trace message, and now gets scheduled
* in again.
*/
- do_send_schedfix_to_port(trace_port, c_p->id, ts);
+ do_send_schedfix_to_port(trace_port, c_p->common.id, ts);
}
+
+ erts_port_release(trace_port);
+
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
#endif
@@ -566,23 +591,27 @@ profile_send(Eterm from, Eterm message) {
Port *profiler_port = NULL;
/* not smp */
-
-
- profiler_port = &erts_port[internal_port_index(profiler)];
-
- do_send_to_port(profiler,
- profiler_port,
- NIL, /* or current process->id */
- SYS_MSG_TYPE_SYSPROF,
- message);
+
+ profiler_port = erts_id2port_sflgs(profiler,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (profiler_port) {
+ do_send_to_port(profiler,
+ profiler_port,
+ NIL, /* or current process->common.id */
+ SYS_MSG_TYPE_SYSPROF,
+ message);
+ erts_port_release(profiler_port);
+ }
} else {
- ASSERT(is_internal_pid(profiler)
- && internal_pid_index(profiler) < erts_max_processes);
+ ASSERT(is_internal_pid(profiler));
- profile_p = process_tab[internal_pid_index(profiler)];
+ profile_p = erts_proc_lookup(profiler);
- if (INVALID_PID(profile_p, profiler)) return;
+ if (!profile_p)
+ return;
sz = size_object(message);
hp = erts_alloc_message_heap(sz, &bp, &off_heap, profile_p, 0);
@@ -626,13 +655,11 @@ seq_trace_send_to_port(Process *c_p,
trace_port = NULL;
#else
- if (is_not_internal_port(seq_tracer))
- goto invalid_tracer_port;
-
- trace_port = &erts_port[internal_port_index(seq_tracer)];
-
- if (INVALID_TRACER_PORT(trace_port, seq_tracer)) {
- invalid_tracer_port:
+ trace_port = erts_id2port_sflgs(seq_tracer,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (!trace_port) {
system_seq_tracer = am_false;
#ifndef ERTS_SMP
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
@@ -645,11 +672,12 @@ seq_trace_send_to_port(Process *c_p,
#endif
do_send_to_port(seq_tracer,
trace_port,
- c_p ? c_p->id : NIL,
+ c_p ? c_p->common.id : NIL,
SYS_MSG_TYPE_SEQTRACE,
message);
#ifndef ERTS_SMP
+ erts_port_release(trace_port);
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
return;
}
@@ -675,7 +703,7 @@ seq_trace_send_to_port(Process *c_p,
trace_port->control_flags &= ~PORT_CONTROL_FLAG_HEAVY;
do_send_to_port(seq_tracer,
trace_port,
- c_p ? c_p->id : NIL,
+ c_p ? c_p->common.id : NIL,
SYS_MSG_TYPE_SEQTRACE,
message);
@@ -689,15 +717,20 @@ seq_trace_send_to_port(Process *c_p,
* just after writing the real trace message, and now gets scheduled
* in again.
*/
- do_send_schedfix_to_port(trace_port, c_p->id, ts);
+ do_send_schedfix_to_port(trace_port, c_p->common.id, ts);
}
+
+ erts_port_release(trace_port);
+
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
#endif
}
#define TS_HEAP_WORDS 5
-#define TS_SIZE(p) (((p)->trace_flags & F_TIMESTAMP) ? TS_HEAP_WORDS : 0)
+#define TS_SIZE(p) ((ERTS_TRACE_FLAGS((p)) & F_TIMESTAMP) \
+ ? TS_HEAP_WORDS \
+ : 0)
/*
* Patch a timestamp into a tuple. The tuple must be the last thing
@@ -732,17 +765,17 @@ send_to_tracer(Process *tracee,
erts_smp_mtx_lock(&smq_mtx);
- if (tracee->trace_flags & F_TIMESTAMP)
+ if (ERTS_TRACE_FLAGS(tracee) & F_TIMESTAMP)
*hpp = patch_ts(msg, *hpp);
- if (is_internal_pid(tracee->tracer_proc))
- ERTS_ENQ_TRACE_MSG(tracee->id, tracer_ref, msg, bp);
+ if (is_internal_pid(ERTS_TRACER_PROC(tracee)))
+ ERTS_ENQ_TRACE_MSG(tracee->common.id, tracer_ref, msg, bp);
else {
- ASSERT(is_internal_port(tracee->tracer_proc));
+ ASSERT(is_internal_port(ERTS_TRACER_PROC(tracee)));
send_to_port(no_fake_sched ? NULL : tracee,
msg,
- &tracee->tracer_proc,
- &tracee->trace_flags);
+ &ERTS_TRACER_PROC(tracee),
+ &ERTS_TRACE_FLAGS(tracee));
}
erts_smp_mtx_unlock(&smq_mtx);
@@ -760,7 +793,7 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched)
ERTS_TRACER_REF_TYPE tracer_ref = ERTS_NULL_TRACER_REF;
int sched_no, curr_func, to_port, no_fake_sched;
- if (is_nil(p->tracer_proc))
+ if (is_nil(ERTS_TRACER_PROC(p)))
return;
no_fake_sched = never_fake_sched;
@@ -780,22 +813,18 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched)
}
sched_no = IS_TRACED_FL(p, F_TRACE_SCHED_NO);
- to_port = is_internal_port(p->tracer_proc);
+ to_port = is_internal_port(ERTS_TRACER_PROC(p));
if (!to_port) {
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
}
- if (ERTS_PROC_IS_EXITING(p)
-#ifndef ERTS_SMP
- || p->status == P_FREE
-#endif
- ) {
+ if (ERTS_PROC_IS_EXITING(p))
curr_func = 0;
- }
else {
if (!p->current)
p->current = find_function_from_pc(p->i);
@@ -824,7 +853,7 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched)
}
if (!sched_no) {
- mess = TUPLE4(hp, am_trace, p->id, what, tmp);
+ mess = TUPLE4(hp, am_trace, p->common.id, what, tmp);
hp += 5;
}
else {
@@ -833,7 +862,7 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched)
#else
Eterm sched_id = make_small(1);
#endif
- mess = TUPLE5(hp, am_trace, p->id, what, sched_id, tmp);
+ mess = TUPLE5(hp, am_trace, p->common.id, what, sched_id, tmp);
hp += 6;
}
@@ -874,7 +903,7 @@ trace_send(Process *p, Eterm to, Eterm msg)
operation = am_send;
if (is_internal_pid(to)) {
- if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, to, 0))
+ if (!erts_proc_lookup(to))
goto send_to_non_existing_process;
}
else if(is_external_pid(to)
@@ -885,19 +914,19 @@ trace_send(Process *p, Eterm to, Eterm msg)
operation = am_atom_put(s, sys_strlen(s));
}
- if (is_internal_port(p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(p))) {
#define LOCAL_HEAP_SIZE (11)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
hp = local_heap;
- mess = TUPLE5(hp, am_trace, p->id, operation, msg, to);
+ mess = TUPLE5(hp, am_trace, p->common.id, operation, msg, to);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- send_to_port(p, mess, &p->tracer_proc, &p->trace_flags);
+ send_to_port(p, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -907,10 +936,11 @@ trace_send(Process *p, Eterm to, Eterm msg)
ErlOffHeap *off_heap;
ERTS_TRACER_REF_TYPE tracer_ref;
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
sz_msg = size_object(msg);
sz_to = size_object(to);
@@ -926,16 +956,16 @@ trace_send(Process *p, Eterm to, Eterm msg)
sz_msg,
&hp,
off_heap);
- mess = TUPLE5(hp, am_trace, p->id/* Local pid */, operation, msg, to);
+ mess = TUPLE5(hp, am_trace, p->common.id, operation, msg, to);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
}
@@ -950,19 +980,19 @@ trace_receive(Process *rp, Eterm msg)
size_t sz_msg;
Eterm* hp;
- if (is_internal_port(rp->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(rp))) {
#define LOCAL_HEAP_SIZE (10)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
hp = local_heap;
- mess = TUPLE4(hp, am_trace, rp->id, am_receive, msg);
+ mess = TUPLE4(hp, am_trace, rp->common.id, am_receive, msg);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (rp->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(rp) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- send_to_port(rp, mess, &rp->tracer_proc, &rp->trace_flags);
+ send_to_port(rp, mess, &ERTS_TRACER_PROC(rp), &ERTS_TRACE_FLAGS(rp));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -972,10 +1002,11 @@ trace_receive(Process *rp, Eterm msg)
ErlOffHeap *off_heap;
ERTS_TRACER_REF_TYPE tracer_ref;
- ASSERT(is_internal_pid(rp->tracer_proc)
- && internal_pid_index(rp->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(rp)));
- ERTS_GET_TRACER_REF(tracer_ref, rp->tracer_proc, rp->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(rp),
+ ERTS_TRACE_FLAGS(rp));
sz_msg = size_object(msg);
@@ -984,16 +1015,16 @@ trace_receive(Process *rp, Eterm msg)
hp = ERTS_ALLOC_SYSMSG_HEAP(hsz, &bp, &off_heap, tracer_ref);
msg = copy_struct(msg, sz_msg, &hp, off_heap);
- mess = TUPLE4(hp, am_trace, rp->id/* Local pid */, am_receive, msg);
+ mess = TUPLE4(hp, am_trace, rp->common.id, am_receive, msg);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (rp->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(rp) & F_TIMESTAMP) {
patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(rp->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(rp->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
}
@@ -1003,14 +1034,14 @@ seq_trace_update_send(Process *p)
{
Eterm seq_tracer = erts_get_system_seq_tracer();
ASSERT((is_tuple(SEQ_TRACE_TOKEN(p)) || is_nil(SEQ_TRACE_TOKEN(p))));
- if ( (p->id == seq_tracer) || (SEQ_TRACE_TOKEN(p) == NIL)
+ if ( (p->common.id == seq_tracer) || (SEQ_TRACE_TOKEN(p) == NIL)
#ifdef USE_VM_PROBES
|| (SEQ_TRACE_TOKEN(p) == am_have_dt_utag)
#endif
) {
return 0;
}
- SEQ_TRACE_TOKEN_SENDER(p) = p->id; /* Internal pid */
+ SEQ_TRACE_TOKEN_SENDER(p) = p->common.id;
SEQ_TRACE_TOKEN_SERIAL(p) =
make_small(++(p -> seq_trace_clock));
SEQ_TRACE_TOKEN_LASTCNT(p) =
@@ -1047,7 +1078,7 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
ASSERT(is_tuple(token) || is_nil(token));
if (SEQ_TRACE_T_SENDER(token) == seq_tracer || token == NIL ||
- (process && process->trace_flags & F_SENSITIVE)) {
+ (process && ERTS_TRACE_FLAGS(process) & F_SENSITIVE)) {
return;
}
@@ -1111,13 +1142,12 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
Uint sz_label, sz_lastcnt_serial, sz_msg, sz_ts, sz_sender,
sz_exitfrom, sz_receiver;
- ASSERT(is_internal_pid(seq_tracer)
- && internal_pid_index(seq_tracer) < erts_max_processes);
+ ASSERT(is_internal_pid(seq_tracer));
#ifndef ERTS_SMP
- tracer = process_tab[internal_pid_index(seq_tracer)];
- if (INVALID_PID(tracer, tracer->id)) {
+ tracer = erts_proc_lookup(seq_tracer);
+ if (!tracer) {
system_seq_tracer = am_false;
return; /* no need to send anything */
}
@@ -1226,17 +1256,17 @@ erts_trace_return_to(Process *p, BeamInstr *pc)
hp += 4;
}
- mess = TUPLE4(hp, am_trace, p->id, am_return_to, mfa);
+ mess = TUPLE4(hp, am_trace, p->common.id, am_return_to, mfa);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- if (is_internal_port(p->tracer_proc)) {
- send_to_port(p, mess, &p->tracer_proc, &p->trace_flags);
+ if (is_internal_port(ERTS_TRACER_PROC(p))) {
+ send_to_port(p, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p));
} else {
ErlHeapFragment *bp;
ErlOffHeap *off_heap;
@@ -1246,10 +1276,11 @@ erts_trace_return_to(Process *p, BeamInstr *pc)
/*
* Find the tracer.
*/
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
size = size_object(mess);
@@ -1259,7 +1290,7 @@ erts_trace_return_to(Process *p, BeamInstr *pc)
* Copy the trace message into the buffer and enqueue it.
*/
mess = copy_struct(mess, size, &hp, off_heap);
- ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp);
}
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
@@ -1288,25 +1319,25 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid)
/* Breakpoint trace enabled without specifying tracer =>
* use process tracer and flags
*/
- tracer_pid = &p->tracer_proc;
+ tracer_pid = &ERTS_TRACER_PROC(p);
}
if (is_nil(*tracer_pid)) {
/* Trace disabled */
return;
}
ASSERT(is_internal_pid(*tracer_pid) || is_internal_port(*tracer_pid));
- if (*tracer_pid == p->id) {
+ if (*tracer_pid == p->common.id) {
/* Do not generate trace messages to oneself */
return;
}
- if (tracer_pid == &p->tracer_proc) {
+ if (tracer_pid == &ERTS_TRACER_PROC(p)) {
/* Tracer specified in process structure =>
* non-breakpoint trace =>
* use process flags
*/
- tracee_flags = &p->trace_flags;
+ tracee_flags = &ERTS_TRACE_FLAGS(p);
#ifdef ERTS_SMP
- tracee = p->id;
+ tracee = p->common.id;
#endif
} else {
/* Tracer not specified in process structure =>
@@ -1335,7 +1366,7 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid)
hp = local_heap;
mfa = TUPLE3(hp, mod, name, make_small(arity));
hp += 4;
- mess = TUPLE5(hp, am_trace, p->id, am_return_from, mfa, retval);
+ mess = TUPLE5(hp, am_trace, p->common.id, am_return_from, mfa, retval);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
if (*tracee_flags & F_TIMESTAMP) {
@@ -1355,8 +1386,7 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid)
Eterm* limit;
#endif
- ASSERT(is_internal_pid(*tracer_pid)
- && internal_pid_index(*tracer_pid) < erts_max_processes);
+ ASSERT(is_internal_pid(*tracer_pid));
ERTS_GET_TRACER_REF(tracer_ref, *tracer_pid, *tracee_flags);
@@ -1378,7 +1408,7 @@ erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid)
mfa = TUPLE3(hp, mod, name, make_small(arity));
hp += 4;
retval = copy_struct(retval, retval_size, &hp, off_heap);
- mess = TUPLE5(hp, am_trace, p->id/* Local pid */, am_return_from, mfa, retval);
+ mess = TUPLE5(hp, am_trace, p->common.id, am_return_from, mfa, retval);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
@@ -1419,25 +1449,25 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value,
/* Breakpoint trace enabled without specifying tracer =>
* use process tracer and flags
*/
- tracer_pid = &p->tracer_proc;
+ tracer_pid = &ERTS_TRACER_PROC(p);
}
if (is_nil(*tracer_pid)) {
/* Trace disabled */
return;
}
ASSERT(is_internal_pid(*tracer_pid) || is_internal_port(*tracer_pid));
- if (*tracer_pid == p->id) {
+ if (*tracer_pid == p->common.id) {
/* Do not generate trace messages to oneself */
return;
}
- if (tracer_pid == &p->tracer_proc) {
+ if (tracer_pid == &ERTS_TRACER_PROC(p)) {
/* Tracer specified in process structure =>
* non-breakpoint trace =>
* use process flags
*/
- tracee_flags = &p->trace_flags;
+ tracee_flags = &ERTS_TRACE_FLAGS(p);
#ifdef ERTS_SMP
- tracee = p->id;
+ tracee = p->common.id;
#endif
if (! (*tracee_flags & F_TRACE_CALLS)) {
return;
@@ -1465,7 +1495,7 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value,
hp += 4;
cv = TUPLE2(hp, class, value);
hp += 3;
- mess = TUPLE5(hp, am_trace, p->id, am_exception_from, mfa_tuple, cv);
+ mess = TUPLE5(hp, am_trace, p->common.id, am_exception_from, mfa_tuple, cv);
hp += 6;
ASSERT((hp - local_heap) <= LOCAL_HEAP_SIZE);
erts_smp_mtx_lock(&smq_mtx);
@@ -1487,8 +1517,7 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value,
Eterm* limit;
#endif
- ASSERT(is_internal_pid(*tracer_pid)
- && internal_pid_index(*tracer_pid) < erts_max_processes);
+ ASSERT(is_internal_pid(*tracer_pid));
ERTS_GET_TRACER_REF(tracer_ref, *tracer_pid, *tracee_flags);
@@ -1512,7 +1541,7 @@ erts_trace_exception(Process* p, BeamInstr mfa[3], Eterm class, Eterm value,
value = copy_struct(value, value_size, &hp, off_heap);
cv = TUPLE2(hp, class, value);
hp += 3;
- mess = TUPLE5(hp, am_trace, p->id/* Local pid */,
+ mess = TUPLE5(hp, am_trace, p->common.id,
am_exception_from, mfa_tuple, cv);
hp += 6;
@@ -1566,25 +1595,25 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
/* Breakpoint trace enabled without specifying tracer =>
* use process tracer and flags
*/
- tracer_pid = &p->tracer_proc;
+ tracer_pid = &ERTS_TRACER_PROC(p);
}
if (is_nil(*tracer_pid)) {
/* Trace disabled */
return 0;
}
ASSERT(is_internal_pid(*tracer_pid) || is_internal_port(*tracer_pid));
- if (*tracer_pid == p->id) {
+ if (*tracer_pid == p->common.id) {
/* Do not generate trace messages to oneself */
return 0;
}
- if (tracer_pid == &p->tracer_proc) {
+ if (tracer_pid == &ERTS_TRACER_PROC(p)) {
/* Tracer specified in process structure =>
* non-breakpoint trace =>
* use process flags
*/
- tracee_flags = &p->trace_flags;
+ tracee_flags = &ERTS_TRACE_FLAGS(p);
#ifdef ERTS_SMP
- tracee = p->id;
+ tracee = p->common.id;
#endif
} else {
/* Tracer not specified in process structure =>
@@ -1592,7 +1621,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
* meta trace =>
* use fixed flag set instead of process flags
*/
- if (p->trace_flags & F_SENSITIVE) {
+ if (ERTS_TRACE_FLAGS(p) & F_SENSITIVE) {
/* No trace messages for sensitive processes. */
return 0;
}
@@ -1650,7 +1679,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
if (!erts_is_valid_tracer_port(*tracer_pid)) {
#ifdef ERTS_SMP
- ASSERT(is_nil(tracee) || tracer_pid == &p->tracer_proc);
+ ASSERT(is_nil(tracee) || tracer_pid == &ERTS_TRACER_PROC(p));
if (is_not_nil(tracee))
erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
#endif
@@ -1752,7 +1781,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
* Build the trace tuple and send it to the port.
*/
- mess = TUPLE4(hp, am_trace, p->id, am_call, mfa_tuple);
+ mess = TUPLE4(hp, am_trace, p->common.id, am_call, mfa_tuple);
hp += 5;
if (pam_result != am_true) {
hp[-5] = make_arityval(5);
@@ -1787,21 +1816,21 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
Eterm* limit;
#endif
- ASSERT(is_internal_pid(*tracer_pid)
- && internal_pid_index(*tracer_pid) < erts_max_processes);
+ ASSERT(is_internal_pid(*tracer_pid));
tracer = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN,
*tracer_pid, ERTS_PROC_LOCK_STATUS);
if (!tracer)
invalid_tracer = 1;
else {
- invalid_tracer = (tracer->trace_flags & F_TRACER) == 0;
+ invalid_tracer = !(ERTS_TRACE_FLAGS(tracer) & F_TRACER);
erts_smp_proc_unlock(tracer, ERTS_PROC_LOCK_STATUS);
}
if (invalid_tracer) {
#ifdef ERTS_SMP
- ASSERT(is_nil(tracee) || tracer_pid == &p->tracer_proc);
+ ASSERT(is_nil(tracee)
+ || tracer_pid == &ERTS_TRACER_PROC(p));
if (is_not_nil(tracee))
erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
#endif
@@ -1925,7 +1954,7 @@ erts_call_trace(Process* p, BeamInstr mfa[3], Binary *match_spec,
* Build the trace tuple and enqueue it.
*/
- mess = TUPLE4(hp, am_trace, p->id/* Local pid */, am_call, mfa_tuple);
+ mess = TUPLE4(hp, am_trace, p->common.id, am_call, mfa_tuple);
hp += 5;
if (pam_result != am_true) {
hp[-5] = make_arityval(5);
@@ -1963,17 +1992,17 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data)
ERTS_SMP_LC_ASSERT((erts_proc_lc_my_proc_locks(t_p) != 0)
|| erts_thr_progress_is_blocking());
- if (is_internal_port(t_p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(t_p))) {
#define LOCAL_HEAP_SIZE (5+5)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
hp = local_heap;
- mess = TUPLE4(hp, am_trace, t_p->id, what, data);
+ mess = TUPLE4(hp, am_trace, t_p->common.id, what, data);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (t_p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
send_to_port(
@@ -1984,7 +2013,9 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data)
/* Fake schedule out and in are never sent when smp enabled */
c_p,
#endif
- mess, &t_p->tracer_proc, &t_p->trace_flags);
+ mess,
+ &ERTS_TRACER_PROC(t_p),
+ &ERTS_TRACE_FLAGS(t_p));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -1995,10 +2026,11 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data)
ERTS_TRACER_REF_TYPE tracer_ref;
size_t sz_data;
- ASSERT(is_internal_pid(t_p->tracer_proc)
- && internal_pid_index(t_p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(t_p)));
- ERTS_GET_TRACER_REF(tracer_ref, t_p->tracer_proc, t_p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(t_p),
+ ERTS_TRACE_FLAGS(t_p));
sz_data = size_object(data);
@@ -2007,16 +2039,16 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data)
hp = ERTS_ALLOC_SYSMSG_HEAP(need, &bp, &off_heap, tracer_ref);
tmp = copy_struct(data, sz_data, &hp, off_heap);
- mess = TUPLE4(hp, am_trace, t_p->id/* Local pid */, what, tmp);
+ mess = TUPLE4(hp, am_trace, t_p->common.id, what, tmp);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (t_p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(t_p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(t_p->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
}
@@ -2037,7 +2069,7 @@ trace_proc_spawn(Process *p, Eterm pid,
Eterm mess;
Eterm* hp;
- if (is_internal_port(p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(p))) {
#define LOCAL_HEAP_SIZE (4+6+5)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
@@ -2045,13 +2077,13 @@ trace_proc_spawn(Process *p, Eterm pid,
hp = local_heap;
mfa = TUPLE3(hp, mod, func, args);
hp += 4;
- mess = TUPLE5(hp, am_trace, p->id, am_spawn, pid, mfa);
+ mess = TUPLE5(hp, am_trace, p->common.id, am_spawn, pid, mfa);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- send_to_port(p, mess, &p->tracer_proc, &p->trace_flags);
+ send_to_port(p, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -2063,10 +2095,11 @@ trace_proc_spawn(Process *p, Eterm pid,
size_t sz_args, sz_pid;
Uint need;
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
sz_args = size_object(args);
sz_pid = size_object(pid);
@@ -2078,16 +2111,16 @@ trace_proc_spawn(Process *p, Eterm pid,
mfa = TUPLE3(hp, mod, func, tmp);
hp += 4;
tmp = copy_struct(pid, sz_pid, &hp, off_heap);
- mess = TUPLE5(hp, am_trace, p->id, am_spawn, tmp, mfa);
+ mess = TUPLE5(hp, am_trace, p->common.id, am_spawn, tmp, mfa);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
}
@@ -2107,187 +2140,6 @@ void save_calls(Process *p, Export *e)
}
}
-/*
- * Entry point called by the trace wrap functions in erl_bif_wrap.c
- *
- * The trace wrap functions are themselves called through the export
- * entries instead of the original BIF functions.
- */
-Eterm
-erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
-{
- Eterm result;
- int meta = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_META);
-
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
-
- if (!ARE_TRACE_FLAGS_ON(p, F_TRACE_CALLS) && (! meta)) {
- /* Warning! This is an Optimization.
- *
- * If neither meta trace is active nor process trace flags then
- * no tracing will occur. Doing the whole else branch will
- * also do nothing, only slower.
- */
- Eterm (*func)(Process*, Eterm*, BeamInstr*) = bif_table[bif_index].f;
- result = func(p, args, I);
- } else {
- Eterm (*func)(Process*, Eterm*, BeamInstr*);
- Export* ep = bif_export[bif_index];
- Uint32 flags = 0, flags_meta = 0;
- int global = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_GLOBAL);
- int local = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_LOCAL);
- int time = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_CALL_TIME);
- Eterm meta_tracer_pid = NIL;
- int applying = (I == &(ep->code[3])); /* Yup, the apply code for a bif
- * is actually in the
- * export entry */
- BeamInstr *cp = p->cp;
-
- /*
- * Make continuation pointer OK, it is not during direct BIF calls,
- * but it is correct during apply of bif.
- */
- if (!applying) {
- p->cp = I;
- }
- if (global || local) {
- flags = erts_call_trace(p, ep->code, ep->match_prog_set, args,
- local, &p->tracer_proc);
- }
- if (meta) {
- flags_meta = erts_bif_mtrace(p, ep->code+3, args, local,
- &meta_tracer_pid);
- }
- if (time) {
- BpDataTime *bdt = NULL;
- BeamInstr *pc = (BeamInstr *)ep->code+3;
-
- bdt = (BpDataTime *) erts_get_time_break(p, pc);
- ASSERT(bdt);
-
- if (!bdt->pause) {
- erts_trace_time_break(p, pc, bdt, ERTS_BP_CALL_TIME_CALL);
- }
- }
- /* Restore original continuation pointer (if changed). */
- p->cp = cp;
-
- func = bif_table[bif_index].f;
-
- result = func(p, args, I);
-
- if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) {
- BeamInstr i_return_trace = beam_return_trace[0];
- BeamInstr i_return_to_trace = beam_return_to_trace[0];
- BeamInstr i_return_time_trace = beam_return_time_trace[0];
- Eterm *cpp;
- /* Maybe advance cp to skip trace stack frames */
- for (cpp = p->stop; ; cp = cp_val(*cpp++)) {
- if (*cp == i_return_trace) {
- /* Skip stack frame variables */
- while (is_not_CP(*cpp)) cpp++;
- cpp += 2; /* Skip return_trace parameters */
- } else if (*cp == i_return_time_trace) {
- /* Skip stack frame variables */
- while (is_not_CP(*cpp)) cpp++;
- cpp += 1; /* Skip return_time_trace parameters */
- } else if (*cp == i_return_to_trace) {
- /* A return_to trace message is going to be generated
- * by normal means, so we do not have to.
- */
- cp = NULL;
- break;
- } else break;
- }
- }
-
- /* Try to get these in the order
- * they usually appear in normal code... */
- if (is_non_value(result)) {
- Uint reason = p->freason;
- if (reason != TRAP) {
- Eterm class;
- Eterm value = p->fvalue;
- DeclareTmpHeapNoproc(nocatch,3);
- UseTmpHeapNoproc(3);
- /* Expand error value like in handle_error() */
- if (reason & EXF_ARGLIST) {
- Eterm *tp;
- ASSERT(is_tuple(value));
- tp = tuple_val(value);
- value = tp[1];
- }
- if ((reason & EXF_THROWN) && (p->catches <= 0)) {
- value = TUPLE2(nocatch, am_nocatch, value);
- reason = EXC_ERROR;
- }
- /* Note: expand_error_value() could theoretically
- * allocate on the heap, but not for any error
- * returned by a BIF, and it would do no harm,
- * just be annoying.
- */
- value = expand_error_value(p, reason, value);
- class = exception_tag[GET_EXC_CLASS(reason)];
-
- if (flags_meta & MATCH_SET_EXCEPTION_TRACE) {
- erts_trace_exception(p, ep->code, class, value,
- &meta_tracer_pid);
- }
- if (flags & MATCH_SET_EXCEPTION_TRACE) {
- erts_trace_exception(p, ep->code, class, value,
- &p->tracer_proc);
- }
- if ((flags & MATCH_SET_RETURN_TO_TRACE) && p->catches > 0) {
- /* can only happen if(local)*/
- Eterm *ptr = p->stop;
- ASSERT(is_CP(*ptr));
- ASSERT(ptr <= STACK_START(p));
- /* Search the nearest stack frame for a catch */
- while (++ptr < STACK_START(p)) {
- if (is_CP(*ptr)) break;
- if (is_catch(*ptr)) {
- if (applying) {
- /* Apply of BIF, cp is in calling function */
- if (cp) erts_trace_return_to(p, cp);
- } else {
- /* Direct bif call, I points into
- * calling function */
- erts_trace_return_to(p, I);
- }
- }
- }
- }
- UnUseTmpHeapNoproc(3);
- if ((flags_meta|flags) & MATCH_SET_EXCEPTION_TRACE) {
- erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
- p->trace_flags |= F_EXCEPTION_TRACE;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
- }
- }
- } else {
- if (flags_meta & MATCH_SET_RX_TRACE) {
- erts_trace_return(p, ep->code, result, &meta_tracer_pid);
- }
- /* MATCH_SET_RETURN_TO_TRACE cannot occur if(meta) */
- if (flags & MATCH_SET_RX_TRACE) {
- erts_trace_return(p, ep->code, result, &p->tracer_proc);
- }
- if (flags & MATCH_SET_RETURN_TO_TRACE) {
- /* can only happen if(local)*/
- if (applying) {
- /* Apply of BIF, cp is in calling function */
- if (cp) erts_trace_return_to(p, cp);
- } else {
- /* Direct bif call, I points into calling function */
- erts_trace_return_to(p, I);
- }
- }
- }
- }
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
- return result;
-}
-
/* Sends trace message:
* {trace_ts, Pid, What, Msg, Timestamp}
* or {trace, Pid, What, Msg}
@@ -2358,7 +2210,7 @@ trace_gc(Process *p, Eterm what)
UseTmpHeap(LOCAL_HEAP_SIZE,p);
- if (is_internal_port(p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(p))) {
hp = local_heap;
#ifdef DEBUG
size = 0;
@@ -2370,10 +2222,11 @@ trace_gc(Process *p, Eterm what)
size += 5/*4-tuple*/ + TS_SIZE(p);
#endif
} else {
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
size = 0;
(void) erts_bld_atom_uint_2tup_list(NULL,
@@ -2397,19 +2250,19 @@ trace_gc(Process *p, Eterm what)
tags,
values);
- msg = TUPLE4(hp, am_trace, p->id/* Local pid */, what, msg);
+ msg = TUPLE4(hp, am_trace, p->common.id, what, msg);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(msg, hp);
}
ASSERT(hp == limit);
- if (is_internal_port(p->tracer_proc))
- send_to_port(p, msg, &p->tracer_proc, &p->trace_flags);
+ if (is_internal_port(ERTS_TRACER_PROC(p)))
+ send_to_port(p, msg, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p));
else
- ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, msg, bp);
+ ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, msg, bp);
erts_smp_mtx_unlock(&smq_mtx);
UnUseTmpHeap(LOCAL_HEAP_SIZE,p);
#undef LOCAL_HEAP_SIZE
@@ -2449,12 +2302,10 @@ monitor_long_gc(Process *p, Uint time) {
#endif
#ifndef ERTS_SMP
- ASSERT(is_internal_pid(system_monitor)
- && internal_pid_index(system_monitor) < erts_max_processes);
- monitor_p = process_tab[internal_pid_index(system_monitor)];
- if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) {
+ ASSERT(is_internal_pid(system_monitor));
+ monitor_p = erts_proc_lookup(system_monitor);
+ if (!monitor_p || p == monitor_p)
return;
- }
#endif
hsz = 0;
@@ -2476,7 +2327,7 @@ monitor_long_gc(Process *p, Uint time) {
sizeof(values)/sizeof(Uint),
tags,
values);
- msg = TUPLE4(hp, am_monitor, p->id/* Local pid */, am_long_gc, list);
+ msg = TUPLE4(hp, am_monitor, p->common.id, am_long_gc, list);
#ifdef DEBUG
hp += 5 /* 4-tuple */;
@@ -2484,7 +2335,7 @@ monitor_long_gc(Process *p, Uint time) {
#endif
#ifdef ERTS_SMP
- enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp);
+ enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
#else
erts_queue_message(monitor_p, NULL, bp, msg, NIL
#ifdef USE_VM_PROBES
@@ -2525,10 +2376,9 @@ monitor_large_heap(Process *p) {
#ifndef ERTS_SMP
- ASSERT(is_internal_pid(system_monitor)
- && internal_pid_index(system_monitor) < erts_max_processes);
- monitor_p = process_tab[internal_pid_index(system_monitor)];
- if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) {
+ ASSERT(is_internal_pid(system_monitor));
+ monitor_p = erts_proc_lookup(system_monitor);
+ if (monitor_p || p == monitor_p) {
return;
}
#endif
@@ -2552,7 +2402,7 @@ monitor_large_heap(Process *p) {
sizeof(values)/sizeof(Uint),
tags,
values);
- msg = TUPLE4(hp, am_monitor, p->id/* Local pid */, am_large_heap, list);
+ msg = TUPLE4(hp, am_monitor, p->common.id, am_large_heap, list);
#ifdef DEBUG
hp += 5 /* 4-tuple */;
@@ -2560,7 +2410,7 @@ monitor_large_heap(Process *p) {
#endif
#ifdef ERTS_SMP
- enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp);
+ enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
#else
erts_queue_message(monitor_p, NULL, bp, msg, NIL
#ifdef USE_VM_PROBES
@@ -2580,21 +2430,19 @@ monitor_generic(Process *p, Eterm type, Eterm spec) {
Eterm *hp, msg;
#ifndef ERTS_SMP
- ASSERT(is_internal_pid(system_monitor)
- && internal_pid_index(system_monitor) < erts_max_processes);
- monitor_p = process_tab[internal_pid_index(system_monitor)];
- if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) {
+ ASSERT(is_internal_pid(system_monitor));
+ monitor_p = erts_proc_lookup(system_monitor);
+ if (!monitor_p || p == monitor_p)
return;
- }
#endif
hp = ERTS_ALLOC_SYSMSG_HEAP(5, &bp, &off_heap, monitor_p);
- msg = TUPLE4(hp, am_monitor, p->id/* Local pid */, type, spec);
+ msg = TUPLE4(hp, am_monitor, p->common.id, type, spec);
hp += 5;
#ifdef ERTS_SMP
- enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->id, NIL, msg, bp);
+ enqueue_sys_msg(SYS_MSG_TYPE_SYSMON, p->common.id, NIL, msg, bp);
#else
erts_queue_message(monitor_p, NULL, bp, msg, NIL
#ifdef USE_VM_PROBES
@@ -2716,21 +2564,21 @@ trace_port_open(Port *p, Eterm calling_pid, Eterm drv_name) {
Eterm mess;
Eterm* hp;
- if (is_internal_port(p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(p))) {
#define LOCAL_HEAP_SIZE (5+6)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
hp = local_heap;
- mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->id, drv_name);
+ mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->common.id, drv_name);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
/* No fake schedule */
- send_to_port(NULL, mess, &p->tracer_proc, &p->trace_flags);
+ send_to_port(NULL, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -2740,25 +2588,26 @@ trace_port_open(Port *p, Eterm calling_pid, Eterm drv_name) {
size_t sz_data;
ERTS_TRACER_REF_TYPE tracer_ref;
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
sz_data = 6 + TS_SIZE(p);
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
hp = ERTS_ALLOC_SYSMSG_HEAP(sz_data, &bp, &off_heap, tracer_ref);
- mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->id, drv_name);
+ mess = TUPLE5(hp, am_trace, calling_pid, am_open, p->common.id, drv_name);
hp += 6;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
@@ -2779,20 +2628,20 @@ trace_port(Port *t_p, Eterm what, Eterm data) {
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(t_p)
|| erts_thr_progress_is_blocking());
- if (is_internal_port(t_p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(t_p))) {
#define LOCAL_HEAP_SIZE (5+5)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
hp = local_heap;
- mess = TUPLE4(hp, am_trace, t_p->id, what, data);
+ mess = TUPLE4(hp, am_trace, t_p->common.id, what, data);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (t_p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
/* No fake schedule */
- send_to_port(NULL, mess, &t_p->tracer_proc, &t_p->trace_flags);
+ send_to_port(NULL,mess,&ERTS_TRACER_PROC(t_p),&ERTS_TRACE_FLAGS(t_p));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -2802,25 +2651,26 @@ trace_port(Port *t_p, Eterm what, Eterm data) {
size_t sz_data;
ERTS_TRACER_REF_TYPE tracer_ref;
- ASSERT(is_internal_pid(t_p->tracer_proc)
- && internal_pid_index(t_p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(t_p)));
sz_data = 5 + TS_SIZE(t_p);
- ERTS_GET_TRACER_REF(tracer_ref, t_p->tracer_proc, t_p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(t_p),
+ ERTS_TRACE_FLAGS(t_p));
hp = ERTS_ALLOC_SYSMSG_HEAP(sz_data, &bp, &off_heap, tracer_ref);
- mess = TUPLE4(hp, am_trace, t_p->id, what, data);
+ mess = TUPLE4(hp, am_trace, t_p->common.id, what, data);
hp += 5;
erts_smp_mtx_lock(&smq_mtx);
- if (t_p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(t_p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(t_p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(t_p->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
}
@@ -2845,7 +2695,7 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) {
int ws = 5;
Eterm sched_id = am_undefined;
- if (is_internal_port(p->tracer_proc)) {
+ if (is_internal_port(ERTS_TRACER_PROC(p))) {
#define LOCAL_HEAP_SIZE (5+6)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
UseTmpHeapNoproc(LOCAL_HEAP_SIZE);
@@ -2860,21 +2710,21 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) {
#else
sched_id = make_small(1);
#endif
- mess = TUPLE5(hp, am_trace, p->id, what, sched_id, where);
+ mess = TUPLE5(hp, am_trace, p->common.id, what, sched_id, where);
ws = 6;
} else {
- mess = TUPLE4(hp, am_trace, p->id, what, where);
+ mess = TUPLE4(hp, am_trace, p->common.id, what, where);
ws = 5;
}
hp += ws;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
/* No fake scheduling */
- send_to_port(NULL, mess, &p->tracer_proc, &p->trace_flags);
+ send_to_port(NULL, mess, &ERTS_TRACER_PROC(p), &ERTS_TRACE_FLAGS(p));
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
erts_smp_mtx_unlock(&smq_mtx);
@@ -2883,12 +2733,13 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) {
ErlOffHeap *off_heap;
ERTS_TRACER_REF_TYPE tracer_ref;
- ASSERT(is_internal_pid(p->tracer_proc)
- && internal_pid_index(p->tracer_proc) < erts_max_processes);
+ ASSERT(is_internal_pid(ERTS_TRACER_PROC(p)));
if (IS_TRACED_FL(p, F_TRACE_SCHED_NO)) ws = 6; /* Make place for scheduler id */
- ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
+ ERTS_GET_TRACER_REF(tracer_ref,
+ ERTS_TRACER_PROC(p),
+ ERTS_TRACE_FLAGS(p));
hp = ERTS_ALLOC_SYSMSG_HEAP(ws+TS_SIZE(p), &bp, &off_heap, tracer_ref);
@@ -2900,19 +2751,19 @@ trace_sched_ports_where(Port *p, Eterm what, Eterm where) {
#else
sched_id = make_small(1);
#endif
- mess = TUPLE5(hp, am_trace, p->id, what, sched_id, where);
+ mess = TUPLE5(hp, am_trace, p->common.id, what, sched_id, where);
} else {
- mess = TUPLE4(hp, am_trace, p->id, what, where);
+ mess = TUPLE4(hp, am_trace, p->common.id, what, where);
}
hp += ws;
erts_smp_mtx_lock(&smq_mtx);
- if (p->trace_flags & F_TIMESTAMP) {
+ if (ERTS_TRACE_FLAGS(p) & F_TIMESTAMP) {
hp = patch_ts(mess, hp);
}
- ERTS_ENQ_TRACE_MSG(p->id, tracer_ref, mess, bp);
+ ERTS_ENQ_TRACE_MSG(p->common.id, tracer_ref, mess, bp);
erts_smp_mtx_unlock(&smq_mtx);
}
}
@@ -2948,14 +2799,14 @@ profile_runnable_port(Port *p, Eterm status) {
GET_NOW(&Ms, &s, &us);
timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4;
- msg = TUPLE5(hp, am_profile, p->id, status, count, timestamp); hp += 6;
+ msg = TUPLE5(hp, am_profile, p->common.id, status, count, timestamp); hp += 6;
#ifndef ERTS_SMP
- profile_send(p->id, msg);
+ profile_send(p->common.id, msg);
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
#else
- enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp);
+ enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->common.id, NIL, msg, bp);
#endif
erts_smp_mtx_unlock(&smq_mtx);
}
@@ -3002,13 +2853,13 @@ profile_runnable_proc(Process *p, Eterm status){
GET_NOW(&Ms, &s, &us);
timestamp = TUPLE3(hp, make_small(Ms), make_small(s), make_small(us)); hp += 4;
- msg = TUPLE5(hp, am_profile, p->id, status, where, timestamp); hp += 6;
+ msg = TUPLE5(hp, am_profile, p->common.id, status, where, timestamp); hp += 6;
#ifndef ERTS_SMP
- profile_send(p->id, msg);
+ profile_send(p->common.id, msg);
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
#else
- enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->id, NIL, msg, bp);
+ enqueue_sys_msg_unlocked(SYS_MSG_TYPE_SYSPROF, p->common.id, NIL, msg, bp);
#endif
erts_smp_mtx_unlock(&smq_mtx);
}
@@ -3021,16 +2872,19 @@ profile_runnable_proc(Process *p, Eterm status){
void
erts_check_my_tracer_proc(Process *p)
{
- if (is_internal_pid(p->tracer_proc)) {
- Process *tracer = erts_pid2proc(p, ERTS_PROC_LOCK_MAIN,
- p->tracer_proc, ERTS_PROC_LOCK_STATUS);
- int invalid_tracer = !tracer || !(tracer->trace_flags & F_TRACER);
+ if (is_internal_pid(ERTS_TRACER_PROC(p))) {
+ Process *tracer = erts_pid2proc(p,
+ ERTS_PROC_LOCK_MAIN,
+ ERTS_TRACER_PROC(p),
+ ERTS_PROC_LOCK_STATUS);
+ int invalid_tracer = (!tracer
+ || !(ERTS_TRACE_FLAGS(tracer) & F_TRACER));
if (tracer)
erts_smp_proc_unlock(tracer, ERTS_PROC_LOCK_STATUS);
if (invalid_tracer) {
erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
- p->trace_flags &= ~TRACEE_FLAGS;
- p->tracer_proc = NIL;
+ ERTS_TRACE_FLAGS(p) &= ~TRACEE_FLAGS;
+ ERTS_TRACER_PROC(p) = NIL;
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
}
}
@@ -3149,10 +3003,10 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver)
break;
case SYS_MSG_TYPE_SEQTRACE:
/* Reset seq_tracer if it hasn't changed */
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
if (system_seq_tracer == receiver)
system_seq_tracer = am_false;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
break;
case SYS_MSG_TYPE_SYSMON:
if (receiver == NIL
@@ -3374,7 +3228,7 @@ sys_msg_dispatcher_func(void *unused)
proc = erts_pid2proc(NULL, 0, receiver, proc_locks);
if (!proc
|| (smqp->type == SYS_MSG_TYPE_TRACE
- && !(proc->trace_flags & F_TRACER))) {
+ && !(ERTS_TRACE_FLAGS(proc) & F_TRACER))) {
/* Bad tracer */
#ifdef DEBUG_PRINTOUTS
if (smqp->type == SYS_MSG_TYPE_TRACE && proc)
@@ -3401,18 +3255,16 @@ sys_msg_dispatcher_func(void *unused)
proc = erts_whereis_process(NULL,0,receiver,proc_locks,0);
if (!proc)
goto failure;
- else if (smqp->from == proc->id)
+ else if (smqp->from == proc->common.id)
goto drop_sys_msg;
else
goto queue_proc_msg;
}
else if (is_internal_port(receiver)) {
- port = erts_id2port(receiver, NULL, 0);
- if (INVALID_TRACER_PORT(port, receiver)) {
- if (port)
- erts_port_release(port);
+ port = erts_thr_id2port_sflgs(receiver,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (!port)
goto failure;
- }
else {
write_sys_msg_to_port(receiver,
port,
@@ -3424,7 +3276,7 @@ sys_msg_dispatcher_func(void *unused)
#ifdef DEBUG_PRINTOUTS
erts_fprintf(stderr, "delivered\n");
#endif
- erts_port_release(port);
+ erts_thr_port_release(port);
if (smqp->bp)
free_message_buffer(smqp->bp);
}
diff --git a/erts/emulator/beam/erl_trace.h b/erts/emulator/beam/erl_trace.h
new file mode 100644
index 0000000000..50fb27aab0
--- /dev/null
+++ b/erts/emulator/beam/erl_trace.h
@@ -0,0 +1,141 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+
+#ifndef ERL_TRACE_H__
+#define ERL_TRACE_H__
+
+struct binary;
+
+/* erl_bif_trace.c */
+Eterm erl_seq_trace_info(Process *p, Eterm arg1);
+void erts_system_monitor_clear(Process *c_p);
+void erts_system_profile_clear(Process *c_p);
+
+/* erl_trace.c */
+void erts_init_trace(void);
+void erts_trace_check_exiting(Eterm exiting);
+Eterm erts_set_system_seq_tracer(Process *c_p,
+ ErtsProcLocks c_p_locks,
+ Eterm new);
+Eterm erts_get_system_seq_tracer(void);
+void erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp);
+void erts_get_default_tracing(Uint *flagsp, Eterm *tracerp);
+void erts_set_system_monitor(Eterm monitor);
+Eterm erts_get_system_monitor(void);
+
+#ifdef ERTS_SMP
+void erts_check_my_tracer_proc(Process *);
+void erts_block_sys_msg_dispatcher(void);
+void erts_release_sys_msg_dispatcher(void);
+void erts_foreach_sys_msg_in_q(void (*func)(Eterm,
+ Eterm,
+ Eterm,
+ ErlHeapFragment *));
+void erts_queue_error_logger_message(Eterm, Eterm, ErlHeapFragment *);
+#endif
+
+void erts_send_sys_msg_proc(Eterm, Eterm, Eterm, ErlHeapFragment *);
+void trace_send(Process*, Eterm, Eterm);
+void trace_receive(Process*, Eterm);
+Uint32 erts_call_trace(Process *p, BeamInstr mfa[], struct binary *match_spec, Eterm* args,
+ int local, Eterm *tracer_pid);
+void erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid);
+void erts_trace_exception(Process* p, BeamInstr mfa[], Eterm class, Eterm value,
+ Eterm *tracer);
+void erts_trace_return_to(Process *p, BeamInstr *pc);
+void trace_sched(Process*, Eterm);
+void trace_proc(Process*, Process*, Eterm, Eterm);
+void trace_proc_spawn(Process*, Eterm pid, Eterm mod, Eterm func, Eterm args);
+void save_calls(Process *p, Export *);
+void trace_gc(Process *p, Eterm what);
+/* port tracing */
+void trace_virtual_sched(Process*, Eterm);
+void trace_sched_ports(Port *pp, Eterm);
+void trace_sched_ports_where(Port *pp, Eterm, Eterm);
+void trace_port(Port *, Eterm what, Eterm data);
+void trace_port_open(Port *, Eterm calling_pid, Eterm drv_name);
+
+/* system_profile */
+void erts_set_system_profile(Eterm profile);
+Eterm erts_get_system_profile(void);
+void profile_scheduler(Eterm scheduler_id, Eterm);
+void profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint Ms, Uint s, Uint us);
+void profile_runnable_proc(Process* p, Eterm status);
+void profile_runnable_port(Port* p, Eterm status);
+void erts_system_profile_setup_active_schedulers(void);
+
+/* system_monitor */
+void monitor_long_gc(Process *p, Uint time);
+void monitor_large_heap(Process *p);
+void monitor_generic(Process *p, Eterm type, Eterm spec);
+Uint erts_trace_flag2bit(Eterm flag);
+int erts_trace_flags(Eterm List,
+ Uint *pMask, Eterm *pTracer, int *pCpuTimestamp);
+Eterm erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr *I);
+
+#ifdef ERTS_SMP
+void erts_send_pending_trace_msgs(ErtsSchedulerData *esdp);
+#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) \
+do { \
+ if ((ESDP)->pending_trace_msgs) \
+ erts_send_pending_trace_msgs((ESDP)); \
+} while (0)
+#else
+#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP)
+#endif
+
+#define seq_trace_output(token, msg, type, receiver, process) \
+seq_trace_output_generic((token), (msg), (type), (receiver), (process), NIL)
+#define seq_trace_output_exit(token, msg, type, receiver, exitfrom) \
+seq_trace_output_generic((token), (msg), (type), (receiver), NULL, (exitfrom))
+void seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
+ Eterm receiver, Process *process, Eterm exitfrom);
+
+int seq_trace_update_send(Process *process);
+
+Eterm erts_seq_trace(Process *process,
+ Eterm atom_type, Eterm atom_true_or_false,
+ int build_result);
+
+struct trace_pattern_flags {
+ unsigned int breakpoint : 1; /* Set if any other is set */
+ unsigned int local : 1; /* Local call trace breakpoint */
+ unsigned int meta : 1; /* Metadata trace breakpoint */
+ unsigned int call_count : 1; /* Fast call count breakpoint */
+ unsigned int call_time : 1; /* Fast call time breakpoint */
+};
+extern const struct trace_pattern_flags erts_trace_pattern_flags_off;
+extern int erts_call_time_breakpoint_tracing;
+int erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
+ struct binary* match_prog_set,
+ struct binary *meta_match_prog_set,
+ int on, struct trace_pattern_flags,
+ Eterm meta_tracer_pid, int is_blocking);
+void
+erts_get_default_trace_pattern(int *trace_pattern_is_on,
+ struct binary **match_spec,
+ struct binary **meta_match_spec,
+ struct trace_pattern_flags *trace_pattern_flags,
+ Eterm *meta_tracer_pid);
+int erts_is_default_trace_enabled(void);
+void erts_bif_trace_init(void);
+int erts_finish_breakpointing(void);
+
+#endif /* ERL_TRACE_H__ */
diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 26ac231ddb..51559aea1c 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -77,66 +77,25 @@ void erts_init_unicode(void)
{
max_loop_limit = CONTEXT_REDS * LOOP_FACTOR;
/* Non visual BIFs to trap to. */
- memset(&characters_to_utf8_trap_exp, 0, sizeof(Export));
- characters_to_utf8_trap_exp.address =
- &characters_to_utf8_trap_exp.code[3];
- characters_to_utf8_trap_exp.code[0] = am_erlang;
- characters_to_utf8_trap_exp.code[1] =
- am_atom_put("characters_to_utf8_trap",23);
- characters_to_utf8_trap_exp.code[2] = 3;
- characters_to_utf8_trap_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_utf8_trap_exp.code[4] =
- (BeamInstr) &characters_to_utf8_trap;
-
- memset(&characters_to_list_trap_1_exp, 0, sizeof(Export));
- characters_to_list_trap_1_exp.address =
- &characters_to_list_trap_1_exp.code[3];
- characters_to_list_trap_1_exp.code[0] = am_erlang;
- characters_to_list_trap_1_exp.code[1] =
- am_atom_put("characters_to_list_trap_1",25);
- characters_to_list_trap_1_exp.code[2] = 3;
- characters_to_list_trap_1_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_1_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_1;
-
- memset(&characters_to_list_trap_2_exp, 0, sizeof(Export));
- characters_to_list_trap_2_exp.address =
- &characters_to_list_trap_2_exp.code[3];
- characters_to_list_trap_2_exp.code[0] = am_erlang;
- characters_to_list_trap_2_exp.code[1] =
- am_atom_put("characters_to_list_trap_2",25);
- characters_to_list_trap_2_exp.code[2] = 3;
- characters_to_list_trap_2_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_2_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_2;
-
-
- memset(&characters_to_list_trap_3_exp, 0, sizeof(Export));
- characters_to_list_trap_3_exp.address =
- &characters_to_list_trap_3_exp.code[3];
- characters_to_list_trap_3_exp.code[0] = am_erlang;
- characters_to_list_trap_3_exp.code[1] =
- am_atom_put("characters_to_list_trap_3",25);
- characters_to_list_trap_3_exp.code[2] = 3;
- characters_to_list_trap_3_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_3_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_3;
-
- memset(&characters_to_list_trap_4_exp, 0, sizeof(Export));
- characters_to_list_trap_4_exp.address =
- &characters_to_list_trap_4_exp.code[3];
- characters_to_list_trap_4_exp.code[0] = am_erlang;
- characters_to_list_trap_4_exp.code[1] =
- am_atom_put("characters_to_list_trap_4",25);
- characters_to_list_trap_4_exp.code[2] = 1;
- characters_to_list_trap_4_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_4_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_4;
+ erts_init_trap_export(&characters_to_utf8_trap_exp,
+ am_erlang, am_atom_put("characters_to_utf8_trap",23), 3,
+ &characters_to_utf8_trap);
+
+ erts_init_trap_export(&characters_to_list_trap_1_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_1",25), 3,
+ &characters_to_list_trap_1);
+
+ erts_init_trap_export(&characters_to_list_trap_2_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_2",25), 3,
+ &characters_to_list_trap_2);
+
+ erts_init_trap_export(&characters_to_list_trap_3_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_3",25), 3,
+ &characters_to_list_trap_3);
+
+ erts_init_trap_export(&characters_to_list_trap_4_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_4",25), 1,
+ &characters_to_list_trap_4);
c_to_b_int_trap_exportp = erts_export_put(am_unicode,am_characters_to_binary_int,2);
c_to_l_int_trap_exportp = erts_export_put(am_unicode,am_characters_to_list_int,2);
diff --git a/erts/emulator/beam/erl_utils.h b/erts/emulator/beam/erl_utils.h
new file mode 100644
index 0000000000..a2064bd8a3
--- /dev/null
+++ b/erts/emulator/beam/erl_utils.h
@@ -0,0 +1,215 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifndef ERL_UTILS_H__
+#define ERL_UTILS_H__
+
+#include "sys.h"
+#include "erl_smp.h"
+#include "erl_printf.h"
+
+typedef struct {
+#ifdef DEBUG
+ int smp_api;
+#endif
+ union {
+ Uint64 not_atomic;
+#ifdef ARCH_64
+ erts_atomic_t atomic;
+#else
+ erts_dw_atomic_t atomic;
+#endif
+ } counter;
+} erts_interval_t;
+
+void erts_interval_init(erts_interval_t *);
+void erts_smp_interval_init(erts_interval_t *);
+Uint64 erts_step_interval_nob(erts_interval_t *);
+Uint64 erts_step_interval_relb(erts_interval_t *);
+Uint64 erts_smp_step_interval_nob(erts_interval_t *);
+Uint64 erts_smp_step_interval_relb(erts_interval_t *);
+Uint64 erts_ensure_later_interval_nob(erts_interval_t *, Uint64);
+Uint64 erts_ensure_later_interval_acqb(erts_interval_t *, Uint64);
+Uint64 erts_smp_ensure_later_interval_nob(erts_interval_t *, Uint64);
+Uint64 erts_smp_ensure_later_interval_acqb(erts_interval_t *, Uint64);
+#ifdef ARCH_32
+ERTS_GLB_INLINE Uint64 erts_interval_dw_aint_to_val__(erts_dw_aint_t *);
+#endif
+ERTS_GLB_INLINE Uint64 erts_current_interval_nob__(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_current_interval_acqb__(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_current_interval_nob(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_current_interval_acqb(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_smp_current_interval_nob(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_smp_current_interval_acqb(erts_interval_t *);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+#ifdef ARCH_32
+
+ERTS_GLB_INLINE Uint64
+erts_interval_dw_aint_to_val__(erts_dw_aint_t *dw)
+{
+#ifdef ETHR_SU_DW_NAINT_T__
+ return (Uint64) dw->dw_sint;
+#else
+ Uint64 res;
+ res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]);
+ res <<= 32;
+ res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]);
+ return res;
+#endif
+}
+
+#endif
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_nob__(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_read_nob(&icp->counter.atomic);
+#else
+ erts_dw_aint_t dw;
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &dw);
+ return erts_interval_dw_aint_to_val__(&dw);
+#endif
+}
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_acqb__(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_read_acqb(&icp->counter.atomic);
+#else
+ erts_dw_aint_t dw;
+ erts_dw_atomic_read_acqb(&icp->counter.atomic, &dw);
+ return erts_interval_dw_aint_to_val__(&dw);
+#endif
+}
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return erts_current_interval_nob__(icp);
+}
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_acqb(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return erts_current_interval_acqb__(icp);
+}
+
+ERTS_GLB_INLINE Uint64
+erts_smp_current_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return erts_current_interval_nob__(icp);
+#else
+ return icp->counter.not_atomic;
+#endif
+}
+
+ERTS_GLB_INLINE Uint64
+erts_smp_current_interval_acqb(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return erts_current_interval_acqb__(icp);
+#else
+ return icp->counter.not_atomic;
+#endif
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+/*
+ * To be used to silence unused result warnings, but do not abuse it.
+ */
+void erts_silence_warn_unused_result(long unused);
+
+
+int erts_fit_in_bits_int64(Sint64);
+int erts_fit_in_bits_int32(Sint32);
+int list_length(Eterm);
+int erts_is_builtin(Eterm, Eterm, int);
+Uint32 make_broken_hash(Eterm);
+Uint32 block_hash(byte *, unsigned, Uint32);
+Uint32 make_hash2(Eterm);
+Uint32 make_hash(Eterm);
+
+
+Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str);
+Eterm erts_bld_uint(Uint **hpp, Uint *szp, Uint ui);
+Eterm erts_bld_uword(Uint **hpp, Uint *szp, UWord uw);
+Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64);
+Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64);
+Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr);
+Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...);
+Eterm erts_bld_tuplev(Uint **hpp, Uint *szp, Uint arity, Eterm terms[]);
+Eterm erts_bld_string_n(Uint **hpp, Uint *szp, const char *str, Sint len);
+#define erts_bld_string(hpp,szp,str) erts_bld_string_n(hpp,szp,str,strlen(str))
+Eterm erts_bld_list(Uint **hpp, Uint *szp, Sint length, Eterm terms[]);
+Eterm erts_bld_2tup_list(Uint **hpp, Uint *szp,
+ Sint length, Eterm terms1[], Uint terms2[]);
+Eterm
+erts_bld_atom_uint_2tup_list(Uint **hpp, Uint *szp,
+ Sint length, Eterm atoms[], Uint uints[]);
+Eterm
+erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length,
+ Eterm atoms[], Uint uints1[], Uint uints2[]);
+
+void erts_init_utils(void);
+void erts_init_utils_mem(void);
+
+erts_dsprintf_buf_t *erts_create_tmp_dsbuf(Uint);
+void erts_destroy_tmp_dsbuf(erts_dsprintf_buf_t *);
+
+#if HALFWORD_HEAP
+int eq_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base);
+# define eq(A,B) eq_rel(A,NULL,B,NULL)
+#else
+int eq(Eterm, Eterm);
+# define eq_rel(A,A_BASE,B,B_BASE) eq(A,B)
+#endif
+
+#define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y))))
+
+#if HALFWORD_HEAP
+Sint cmp_rel(Eterm, Eterm*, Eterm, Eterm*);
+#define CMP(A,B) cmp_rel(A,NULL,B,NULL)
+#else
+Sint cmp(Eterm, Eterm);
+#define cmp_rel(A,A_BASE,B,B_BASE) cmp(A,B)
+#define CMP(A,B) cmp(A,B)
+#endif
+#define cmp_lt(a,b) (CMP((a),(b)) < 0)
+#define cmp_le(a,b) (CMP((a),(b)) <= 0)
+#define cmp_eq(a,b) (CMP((a),(b)) == 0)
+#define cmp_ne(a,b) (CMP((a),(b)) != 0)
+#define cmp_ge(a,b) (CMP((a),(b)) >= 0)
+#define cmp_gt(a,b) (CMP((a),(b)) > 0)
+
+#define CMP_LT(a,b) ((a) != (b) && cmp_lt((a),(b)))
+#define CMP_GE(a,b) ((a) == (b) || cmp_ge((a),(b)))
+#define CMP_EQ(a,b) ((a) == (b) || cmp_eq((a),(b)))
+#define CMP_NE(a,b) ((a) != (b) && cmp_ne((a),(b)))
+
+#endif
diff --git a/erts/emulator/beam/erlang_dtrace.d b/erts/emulator/beam/erlang_dtrace.d
index bdfde58845..e3ebbb84f4 100644
--- a/erts/emulator/beam/erlang_dtrace.d
+++ b/erts/emulator/beam/erlang_dtrace.d
@@ -639,9 +639,9 @@ provider erlang {
* Entry into the efile_drv.c file I/O driver
*
* For a list of command numbers used by this driver, see the section
- * "Guide to probe arguments" in ../../../README.md. That section
- * also contains explanation of the various integer and string
- * arguments that may be present when any particular probe fires.
+ * "Guide to efile_drv.c probe arguments" in ../../../HOWTO/DTRACE.md.
+ * That section also contains explanation of the various integer and
+ * string arguments that may be present when any particular probe fires.
*
* NOTE: Not all Linux platforms (using SystemTap) can support
* arguments beyond arg9.
diff --git a/erts/emulator/beam/export.c b/erts/emulator/beam/export.c
index fb0ee99119..6b5121f917 100644
--- a/erts/emulator/beam/export.c
+++ b/erts/emulator/beam/export.c
@@ -32,98 +32,162 @@
#define EXPORT_HASH(m,f,a) ((m)*(f)+(a))
-static IndexTable export_table; /* Not locked. */
-static Hash secondary_export_table; /* Locked. */
+#ifdef DEBUG
+# define IF_DEBUG(x) x
+#else
+# define IF_DEBUG(x)
+#endif
-#include "erl_smp.h"
+static IndexTable export_tables[ERTS_NUM_CODE_IX]; /* Active not locked */
-static erts_smp_rwmtx_t export_table_lock; /* Locks the secondary export table. */
+static erts_smp_atomic_t total_entries_bytes;
-#define export_read_lock() erts_smp_rwmtx_rlock(&export_table_lock)
-#define export_read_unlock() erts_smp_rwmtx_runlock(&export_table_lock)
-#define export_write_lock() erts_smp_rwmtx_rwlock(&export_table_lock)
-#define export_write_unlock() erts_smp_rwmtx_rwunlock(&export_table_lock)
+#include "erl_smp.h"
+
+/* This lock protects the staging export table from concurrent access
+ * AND it protects the staging table from becoming active.
+ */
+erts_smp_mtx_t export_staging_lock;
extern BeamInstr* em_call_error_handler;
extern BeamInstr* em_call_traced_function;
+struct export_entry
+{
+ IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */
+ Export* ep;
+};
+
+/* Helper struct that brings things together in one allocation
+*/
+struct export_blob
+{
+ Export exp;
+ struct export_entry entryv[ERTS_NUM_CODE_IX];
+ /* Note that entryv is not indexed by "code_ix".
+ */
+};
+
+/* Helper struct only used as template
+*/
+struct export_templ
+{
+ struct export_entry entry;
+ Export exp;
+};
+
+static struct export_blob* entry_to_blob(struct export_entry* ee)
+{
+ return (struct export_blob*)
+ ((char*)ee->ep - offsetof(struct export_blob,exp));
+}
+
void
export_info(int to, void *to_arg)
{
#ifdef ERTS_SMP
int lock = !ERTS_IS_CRASH_DUMPING;
if (lock)
- export_read_lock();
+ export_staging_lock();
#endif
- index_info(to, to_arg, &export_table);
- hash_info(to, to_arg, &secondary_export_table);
+ index_info(to, to_arg, &export_tables[erts_active_code_ix()]);
+ hash_info(to, to_arg, &export_tables[erts_staging_code_ix()].htable);
#ifdef ERTS_SMP
if (lock)
- export_read_unlock();
+ export_staging_unlock();
#endif
}
static HashValue
-export_hash(Export* x)
+export_hash(struct export_entry* ee)
{
+ Export* x = ee->ep;
return EXPORT_HASH(x->code[0], x->code[1], x->code[2]);
}
static int
-export_cmp(Export* tmpl, Export* obj)
+export_cmp(struct export_entry* tmpl_e, struct export_entry* obj_e)
{
+ Export* tmpl = tmpl_e->ep;
+ Export* obj = obj_e->ep;
return !(tmpl->code[0] == obj->code[0] &&
tmpl->code[1] == obj->code[1] &&
tmpl->code[2] == obj->code[2]);
}
-static Export*
-export_alloc(Export* tmpl)
+static struct export_entry*
+export_alloc(struct export_entry* tmpl_e)
{
- Export* obj = (Export*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(Export));
-
- obj->fake_op_func_info_for_hipe[0] = 0;
- obj->fake_op_func_info_for_hipe[1] = 0;
- obj->code[0] = tmpl->code[0];
- obj->code[1] = tmpl->code[1];
- obj->code[2] = tmpl->code[2];
- obj->slot.index = -1;
- obj->address = obj->code+3;
- obj->code[3] = (BeamInstr) em_call_error_handler;
- obj->code[4] = 0;
- obj->match_prog_set = NULL;
- return obj;
+ struct export_blob* blob;
+ unsigned ix;
+
+ if (tmpl_e->slot.index == -1) { /* Template, allocate blob */
+ Export* tmpl = tmpl_e->ep;
+ Export* obj;
+
+ blob = (struct export_blob*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(*blob));
+ erts_smp_atomic_add_nob(&total_entries_bytes, sizeof(*blob));
+ obj = &blob->exp;
+ obj->fake_op_func_info_for_hipe[0] = 0;
+ obj->fake_op_func_info_for_hipe[1] = 0;
+ obj->code[0] = tmpl->code[0];
+ obj->code[1] = tmpl->code[1];
+ obj->code[2] = tmpl->code[2];
+ obj->code[3] = (BeamInstr) em_call_error_handler;
+ obj->code[4] = 0;
+
+ for (ix=0; ix<ERTS_NUM_CODE_IX; ix++) {
+ obj->addressv[ix] = obj->code+3;
+
+ blob->entryv[ix].slot.index = -1;
+ blob->entryv[ix].ep = &blob->exp;
+ }
+ ix = 0;
+ }
+ else { /* Existing entry in another table, use free entry in blob */
+ blob = entry_to_blob(tmpl_e);
+ for (ix = 0; blob->entryv[ix].slot.index >= 0; ix++) {
+ ASSERT(ix < ERTS_NUM_CODE_IX);
+ }
+ }
+ return &blob->entryv[ix];
}
-
-static void
-export_free(Export* obj)
+static void
+export_free(struct export_entry* obj)
{
- erts_free(ERTS_ALC_T_EXPORT, (void*) obj);
+ struct export_blob* blob = entry_to_blob(obj);
+ int i;
+ obj->slot.index = -1;
+ for (i=0; i < ERTS_NUM_CODE_IX; i++) {
+ if (blob->entryv[i].slot.index >= 0) {
+ return;
+ }
+ }
+ erts_free(ERTS_ALC_T_EXPORT, blob);
+ erts_smp_atomic_add_nob(&total_entries_bytes, -sizeof(*blob));
}
-
void
init_export_table(void)
{
HashFunctions f;
- erts_smp_rwmtx_opt_t rwmtx_opt = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
- rwmtx_opt.type = ERTS_SMP_RWMTX_TYPE_FREQUENT_READ;
- rwmtx_opt.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+ int i;
- erts_smp_rwmtx_init_opt(&export_table_lock, &rwmtx_opt, "export_tab");
+ erts_smp_mtx_init(&export_staging_lock, "export_tab");
+ erts_smp_atomic_init_nob(&total_entries_bytes, 0);
f.hash = (H_FUN) export_hash;
f.cmp = (HCMP_FUN) export_cmp;
f.alloc = (HALLOC_FUN) export_alloc;
f.free = (HFREE_FUN) export_free;
- erts_index_init(ERTS_ALC_T_EXPORT_TABLE, &export_table, "export_list",
- EXPORT_INITIAL_SIZE, EXPORT_LIMIT, f);
- hash_init(ERTS_ALC_T_EXPORT_TABLE, &secondary_export_table,
- "secondary_export_table", 50, f);
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ erts_index_init(ERTS_ALC_T_EXPORT_TABLE, &export_tables[i], "export_list",
+ EXPORT_INITIAL_SIZE, EXPORT_LIMIT, f);
+ }
}
/*
@@ -138,29 +202,42 @@ init_export_table(void)
* called through such an export entry.
* 3) This function is suitable for the implementation of erlang:apply/3.
*/
+extern Export* /* inline-helper */
+erts_find_export_entry(Eterm m, Eterm f, unsigned int a,ErtsCodeIndex code_ix);
Export*
-erts_find_export_entry(Eterm m, Eterm f, unsigned int a)
+erts_find_export_entry(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
{
HashValue hval = EXPORT_HASH((BeamInstr) m, (BeamInstr) f, (BeamInstr) a);
int ix;
HashBucket* b;
- ix = hval % export_table.htable.size;
- b = export_table.htable.bucket[ix];
+ ix = hval % export_tables[code_ix].htable.size;
+ b = export_tables[code_ix].htable.bucket[ix];
/*
* Note: We have inlined the code from hash.c for speed.
*/
while (b != (HashBucket*) 0) {
- Export* ep = (Export *) b;
+ Export* ep = ((struct export_entry*) b)->ep;
if (ep->code[0] == m && ep->code[1] == f && ep->code[2] == a) {
- break;
+ return ep;
}
b = b->next;
}
- return (Export*)b;
+ return NULL;
+}
+
+static struct export_entry* init_template(struct export_templ* templ,
+ Eterm m, Eterm f, unsigned a)
+{
+ templ->entry.ep = &templ->exp;
+ templ->entry.slot.index = -1;
+ templ->exp.code[0] = m;
+ templ->exp.code[1] = f;
+ templ->exp.code[2] = a;
+ return &templ->entry;
}
@@ -176,47 +253,42 @@ erts_find_export_entry(Eterm m, Eterm f, unsigned int a)
*/
Export*
-erts_find_function(Eterm m, Eterm f, unsigned int a)
+erts_find_function(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
{
- Export e;
- Export* ep;
-
- e.code[0] = m;
- e.code[1] = f;
- e.code[2] = a;
-
- ep = hash_get(&export_table.htable, (void*) &e);
- if (ep != NULL && ep->address == ep->code+3 &&
- ep->code[3] != (BeamInstr) em_call_traced_function) {
- ep = NULL;
+ struct export_templ templ;
+ struct export_entry* ee;
+
+ ee = hash_get(&export_tables[code_ix].htable, init_template(&templ, m, f, a));
+ if (ee == NULL ||
+ (ee->ep->addressv[code_ix] == ee->ep->code+3 &&
+ ee->ep->code[3] != (BeamInstr) BeamOp(op_i_generic_breakpoint))) {
+ return NULL;
}
- return ep;
+ return ee->ep;
}
/*
* Returns a pointer to an existing export entry for a MFA,
* or creates a new one and returns the pointer.
*
- * This function provides unlocked write access to the main export
- * table. It should only be used during start up or when
- * all other threads are blocked.
+ * This function acts on the staging export table. It should only be used
+ * to load new code.
*/
Export*
erts_export_put(Eterm mod, Eterm func, unsigned int arity)
{
- Export e;
- int ix;
+ ErtsCodeIndex code_ix = erts_staging_code_ix();
+ struct export_templ templ;
+ struct export_entry* ee;
- ERTS_SMP_LC_ASSERT(erts_initialized == 0
- || erts_smp_thr_progress_is_blocking());
ASSERT(is_atom(mod));
ASSERT(is_atom(func));
- e.code[0] = mod;
- e.code[1] = func;
- e.code[2] = arity;
- ix = index_put(&export_table, (void*) &e);
- return (Export*) erts_index_lookup(&export_table, ix);
+ export_staging_lock();
+ ee = (struct export_entry*) index_put_entry(&export_tables[code_ix],
+ init_template(&templ, mod, func, arity));
+ export_staging_unlock();
+ return ee->ep;
}
/*
@@ -224,77 +296,117 @@ erts_export_put(Eterm mod, Eterm func, unsigned int arity)
* export entry (making a call through it will cause the error_handler to
* be called).
*
- * Stub export entries will be placed in the secondary export table.
- * erts_export_consolidate() will move all stub export entries into the
- * main export table (will be done the next time code is loaded).
+ * Stub export entries will be placed in the loader export table.
*/
Export*
erts_export_get_or_make_stub(Eterm mod, Eterm func, unsigned int arity)
{
- Export e;
+ ErtsCodeIndex code_ix;
Export* ep;
+ IF_DEBUG(int retrying = 0;)
ASSERT(is_atom(mod));
ASSERT(is_atom(func));
-
- e.code[0] = mod;
- e.code[1] = func;
- e.code[2] = arity;
- ep = erts_find_export_entry(mod, func, arity);
- if (ep == 0) {
- /*
- * The code is not loaded (yet). Put the export in the secondary
- * export table, to avoid having to lock the main export table.
- */
- export_write_lock();
- ep = (Export *) hash_put(&secondary_export_table, (void*) &e);
- export_write_unlock();
- }
+
+ do {
+ code_ix = erts_active_code_ix();
+ ep = erts_find_export_entry(mod, func, arity, code_ix);
+ if (ep == 0) {
+ /*
+ * The code is not loaded (yet). Put the export in the staging
+ * export table, to avoid having to lock the active export table.
+ */
+ export_staging_lock();
+ if (erts_active_code_ix() == code_ix) {
+ struct export_templ templ;
+ struct export_entry* entry;
+
+ IndexTable* tab = &export_tables[erts_staging_code_ix()];
+ init_template(&templ, mod, func, arity);
+ entry = (struct export_entry *) index_put_entry(tab, &templ.entry);
+ ep = entry->ep;
+ ASSERT(ep);
+ }
+ else { /* race */
+ ASSERT(!retrying);
+ IF_DEBUG(retrying = 1);
+ }
+ export_staging_unlock();
+ }
+ } while (!ep);
return ep;
}
-/*
- * To be called before loading code (with other threads blocked).
- * This function will move all export entries from the secondary
- * export table into the primary.
- */
-void
-erts_export_consolidate(void)
+Export *export_list(int i, ErtsCodeIndex code_ix)
{
-#ifdef DEBUG
- HashInfo hi;
-#endif
-
- ERTS_SMP_LC_ASSERT(erts_initialized == 0
- || erts_smp_thr_progress_is_blocking());
-
- export_write_lock();
- erts_index_merge(&secondary_export_table, &export_table);
- erts_hash_merge(&secondary_export_table, &export_table.htable);
- export_write_unlock();
-#ifdef DEBUG
- hash_get_info(&hi, &export_table.htable);
- ASSERT(export_table.entries == hi.objs);
-#endif
+ return ((struct export_entry*) erts_index_lookup(&export_tables[code_ix], i))->ep;
}
-Export *export_list(int i)
+int export_list_size(ErtsCodeIndex code_ix)
{
- return (Export*) erts_index_lookup(&export_table, i);
+ return export_tables[code_ix].entries;
}
-int export_list_size(void)
+int export_table_sz(void)
+{
+ int i, bytes = 0;
+
+ export_staging_lock();
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ bytes += index_table_sz(&export_tables[i]);
+ }
+ export_staging_unlock();
+ return bytes;
+}
+int export_entries_sz(void)
{
- return export_table.entries;
+ return erts_smp_atomic_read_nob(&total_entries_bytes);
}
+Export *export_get(Export *e)
+{
+ struct export_entry ee;
+ struct export_entry* entry;
-int export_table_sz(void)
+ ee.ep = e;
+ entry = (struct export_entry*)hash_get(&export_tables[erts_active_code_ix()].htable, &ee);
+ return entry ? entry->ep : NULL;
+}
+
+IF_DEBUG(static ErtsCodeIndex debug_start_load_ix = 0;)
+
+
+void export_start_staging(void)
{
- return index_table_sz(&export_table);
+ ErtsCodeIndex dst_ix = erts_staging_code_ix();
+ ErtsCodeIndex src_ix = erts_active_code_ix();
+ IndexTable* dst = &export_tables[dst_ix];
+ IndexTable* src = &export_tables[src_ix];
+ struct export_entry* src_entry;
+ struct export_entry* dst_entry;
+ int i;
+
+ ASSERT(dst_ix != src_ix);
+ ASSERT(debug_start_load_ix == -1);
+
+ export_staging_lock();
+ /*
+ * Insert all entries in src into dst table
+ */
+ for (i = 0; i < src->entries; i++) {
+ src_entry = (struct export_entry*) erts_index_lookup(src, i);
+ src_entry->ep->addressv[dst_ix] = src_entry->ep->addressv[src_ix];
+ dst_entry = (struct export_entry*) index_put_entry(dst, src_entry);
+ ASSERT(entry_to_blob(src_entry) == entry_to_blob(dst_entry));
+ }
+ export_staging_unlock();
+
+ IF_DEBUG(debug_start_load_ix = dst_ix);
}
-Export *export_get(Export *e)
+void export_end_staging(int commit)
{
- return hash_get(&export_table.htable, e);
+ ASSERT(debug_start_load_ix == erts_staging_code_ix());
+ IF_DEBUG(debug_start_load_ix = -1);
}
+
diff --git a/erts/emulator/beam/export.h b/erts/emulator/beam/export.h
index c604fdf7c3..ee06e69aff 100644
--- a/erts/emulator/beam/export.h
+++ b/erts/emulator/beam/export.h
@@ -28,14 +28,15 @@
#include "index.h"
#endif
+#include "code_ix.h"
+
/*
** Export entry
*/
+
typedef struct export
{
- IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */
- void* address; /* Pointer to code for function. */
- struct binary* match_prog_set; /* Match program for tracing. */
+ void* addressv[ERTS_NUM_CODE_IX]; /* Pointer to code for function. */
BeamInstr fake_op_func_info_for_hipe[2]; /* MUST be just before code[] */
/*
@@ -44,12 +45,12 @@ typedef struct export
* code[2]: Arity (untagged integer).
* code[3]: This entry is 0 unless the 'address' field points to it.
* Threaded code instruction to load function
- * (em_call_error_handler), execute BIF (em_apply_bif,
- * em_apply_apply), or call a traced function
- * (em_call_traced_function).
- * code[4]: Function pointer to BIF function (for BIFs only)
+ * (em_call_error_handler), execute BIF (em_apply_bif),
+ * or a breakpoint instruction (op_i_generic_breakpoint).
+ * code[4]: Function pointer to BIF function (for BIFs only),
* or pointer to threaded code if the module has an
- * on_load function that has not been run yet.
+ * on_load function that has not been run yet, or pointer
+ * to code for function code[3] is a breakpont instruction.
* Otherwise: 0.
*/
BeamInstr code[5];
@@ -59,21 +60,38 @@ typedef struct export
void init_export_table(void);
void export_info(int, void *);
-Export* erts_find_export_entry(Eterm m, Eterm f, unsigned int a);
+ERTS_GLB_INLINE Export* erts_active_export_entry(Eterm m, Eterm f, unsigned a);
Export* erts_export_put(Eterm mod, Eterm func, unsigned int arity);
-
Export* erts_export_get_or_make_stub(Eterm, Eterm, unsigned);
-void erts_export_consolidate(void);
-Export *export_list(int);
-int export_list_size(void);
+Export *export_list(int,ErtsCodeIndex);
+int export_list_size(ErtsCodeIndex);
int export_table_sz(void);
+int export_entries_sz(void);
Export *export_get(Export*);
+void export_start_staging(void);
+void export_end_staging(int commit);
+
+extern erts_smp_mtx_t export_staging_lock;
+#define export_staging_lock() erts_smp_mtx_lock(&export_staging_lock)
+#define export_staging_unlock() erts_smp_mtx_unlock(&export_staging_lock)
#include "beam_load.h" /* For em_* extern declarations */
#define ExportIsBuiltIn(EntryPtr) \
-(((EntryPtr)->address == (EntryPtr)->code + 3) && \
+(((EntryPtr)->addressv[erts_active_code_ix()] == (EntryPtr)->code + 3) && \
((EntryPtr)->code[3] == (BeamInstr) em_apply_bif))
-#endif
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE Export*
+erts_active_export_entry(Eterm m, Eterm f, unsigned int a)
+{
+ extern Export* erts_find_export_entry(Eterm m, Eterm f, unsigned a, ErtsCodeIndex);
+ return erts_find_export_entry(m, f, a, erts_active_code_ix());
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#endif /* __EXPORT_H__ */
+
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 52f45b924f..ab1065aaa1 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -1850,8 +1850,8 @@ enc_term(ErtsAtomCacheMap *acmp, Eterm obj, byte* ep, Uint32 dflags,
} else {
*ep++ = FLOAT_EXT;
- /* now the sprintf which does the work */
- i = sys_double_to_chars(f.fd, (char*) ep);
+ /* now the erts_snprintf which does the work */
+ i = sys_double_to_chars(f.fd, (char*) ep, (size_t)31);
/* Don't leave garbage after the float! (Bad practice in general,
* and Purify complains.)
@@ -2564,7 +2564,7 @@ dec_term_atom_common:
goto error;
}
if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) {
- if (!erts_find_export_entry(mod, name, arity))
+ if (!erts_active_export_entry(mod, name, arity))
goto error;
}
*objp = make_export(hp);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 2c20e3da3b..298241618f 100755
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -28,6 +28,7 @@
#include "hash.h"
#include "index.h"
#include "atom.h"
+#include "code_ix.h"
#include "export.h"
#include "module.h"
#include "register.h"
@@ -38,38 +39,8 @@
#include "erl_sys_driver.h"
#include "erl_debug.h"
#include "error.h"
-
-typedef struct port Port;
-#include "erl_port_task.h"
-
-typedef struct erts_driver_t_ erts_driver_t;
-
-#define SMALL_IO_QUEUE 5 /* Number of fixed elements */
-
-typedef struct {
- ErlDrvSizeT size; /* total size in bytes */
-
- SysIOVec* v_start;
- SysIOVec* v_end;
- SysIOVec* v_head;
- SysIOVec* v_tail;
- SysIOVec v_small[SMALL_IO_QUEUE];
-
- ErlDrvBinary** b_start;
- ErlDrvBinary** b_end;
- ErlDrvBinary** b_head;
- ErlDrvBinary** b_tail;
- ErlDrvBinary* b_small[SMALL_IO_QUEUE];
-} ErlIOQueue;
-
-typedef struct line_buf { /* Buffer used in line oriented I/O */
- ErlDrvSizeT bufsiz; /* Size of character buffer */
- ErlDrvSizeT ovlen; /* Length of overflow data */
- ErlDrvSizeT ovsiz; /* Actual size of overflow buffer */
- char data[1]; /* Starting point of buffer data,
- data[0] is a flag indicating an unprocess CR,
- The rest is the overflow buffer. */
-} LineBuf;
+#include "erl_utils.h"
+#include "erl_port.h"
struct enif_environment_t /* ErlNifEnv */
{
@@ -89,158 +60,6 @@ extern void erts_print_nif_taints(int to, void* to_arg);
void erts_unload_nif(struct erl_module_nif* nif);
extern void erl_nif_init(void);
-/*
- * Port Specific Data.
- *
- * Only use PrtSD for very rarely used data.
- */
-
-#define ERTS_PRTSD_SCHED_ID 0
-
-#define ERTS_PRTSD_SIZE 1
-
-typedef struct {
- void *data[ERTS_PRTSD_SIZE];
-} ErtsPrtSD;
-
-#ifdef ERTS_SMP
-typedef struct ErtsXPortsList_ ErtsXPortsList;
-#endif
-
-/*
- * Port locking:
- *
- * Locking is done either driver specific or port specific. When
- * driver specific locking is used, all instances of the driver,
- * i.e. ports running the driver, share the same lock. When port
- * specific locking is used each instance have its own lock.
- *
- * Most fields in the Port structure are protected by the lock
- * referred to by the lock field. I'v called it the port lock.
- * This lock is shared between all ports running the same driver
- * when driver specific locking is used.
- *
- * The 'sched' field is protected by the port tasks lock
- * (see erl_port_tasks.c)
- *
- * The 'status' field is protected by a combination of the port lock,
- * the port tasks lock, and the state_lck. It may be read if
- * the state_lck, or the port lock is held. It may only be
- * modified if both the port lock and the state_lck is held
- * (with one exception; see below). When changeing status from alive
- * to dead or vice versa, also the port task lock has to be held.
- * This in order to guarantee that tasks are scheduled only for
- * ports that are alive.
- *
- * The status field may be modified with only the state_lck
- * held when status is changed from dead to alive. This since no
- * threads can have any references to the port other than via the
- * port table.
- *
- * /rickard
- */
-
-struct port {
- ErtsPortTaskSched sched;
- ErtsPortTaskHandle timeout_task;
-#ifdef ERTS_SMP
- erts_smp_atomic_t refc;
- erts_smp_mtx_t *lock;
- ErtsXPortsList *xports;
- erts_smp_atomic_t run_queue;
- erts_smp_spinlock_t state_lck; /* protects: id, status, snapshot */
-#endif
- Eterm id; /* The Port id of this port */
- Eterm connected; /* A connected process */
- Eterm caller; /* Current caller. */
- Eterm data; /* Data associated with port. */
- ErlHeapFragment* bp; /* Heap fragment holding data (NULL if imm data). */
- ErtsLink *nlinks;
- ErtsMonitor *monitors; /* Only MON_ORIGIN monitors of pid's */
- Uint bytes_in; /* Number of bytes read */
- Uint bytes_out; /* Number of bytes written */
-#ifdef ERTS_SMP
- ErtsSmpPTimer *ptimer;
-#else
- ErlTimer tm; /* Timer entry */
-#endif
-
- Eterm tracer_proc; /* If the port is traced, this is the tracer */
- Uint trace_flags; /* Trace flags */
-
- ErlIOQueue ioq; /* driver accessible i/o queue */
- DistEntry *dist_entry; /* Dist entry used in DISTRIBUTION */
- char *name; /* String used in the open */
- erts_driver_t* drv_ptr;
- UWord drv_data;
- SWord os_pid; /* Child process ID */
- ErtsProcList *suspended; /* List of suspended processes. */
- LineBuf *linebuf; /* Buffer to hold data not ready for
- process to get (line oriented I/O)*/
- Uint32 status; /* Status and type flags */
- int control_flags; /* Flags for port_control() */
- erts_aint32_t snapshot; /* Next snapshot that port should be part of */
- struct reg_proc *reg;
- ErlDrvPDL port_data_lock;
-
- ErtsPrtSD *psd; /* Port specific data */
-};
-
-
-ERTS_GLB_INLINE ErtsRunQueue *erts_port_runq(Port *prt);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE ErtsRunQueue *
-erts_port_runq(Port *prt)
-{
-#ifdef ERTS_SMP
- ErtsRunQueue *rq1, *rq2;
- rq1 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue);
- while (1) {
- erts_smp_runq_lock(rq1);
- rq2 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue);
- if (rq1 == rq2)
- return rq1;
- erts_smp_runq_unlock(rq1);
- rq1 = rq2;
- }
-#else
- return ERTS_RUNQ_IX(0);
-#endif
-}
-
-#endif
-
-
-ERTS_GLB_INLINE void *erts_prtsd_get(Port *p, int ix);
-ERTS_GLB_INLINE void *erts_prtsd_set(Port *p, int ix, void *new);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE void *
-erts_prtsd_get(Port *prt, int ix)
-{
- return prt->psd ? prt->psd->data[ix] : NULL;
-}
-
-ERTS_GLB_INLINE void *
-erts_prtsd_set(Port *prt, int ix, void *data)
-{
- if (prt->psd) {
- void *old = prt->psd->data[ix];
- prt->psd->data[ix] = data;
- return old;
- }
- else {
- prt->psd = erts_alloc(ERTS_ALC_T_PRTSD, sizeof(ErtsPrtSD));
- prt->psd->data[ix] = data;
- return NULL;
- }
-}
-
-#endif
-
/* Driver handle (wrapper for old plain handle) */
#define ERL_DE_OK 0
#define ERL_DE_UNLOAD 1
@@ -292,7 +111,7 @@ typedef struct {
or that wait for it to change state */
erts_refc_t refc; /* Number of ports/processes having
references to the driver */
- Uint port_count; /* Number of ports using the driver */
+ erts_smp_atomic32_t port_count; /* Number of ports using the driver */
Uint flags; /* ERL_DE_FL_KILL_PORTS */
int status; /* ERL_DE_xxx */
char *full_path; /* Full path of the driver */
@@ -344,7 +163,7 @@ struct erts_driver_t_ {
};
extern erts_driver_t *driver_list;
-extern erts_smp_mtx_t erts_driver_list_lock;
+extern erts_smp_rwmtx_t erts_driver_list_lock;
extern void erts_ddll_init(void);
extern void erts_ddll_lock_driver(DE_Handle *dh, char *name);
@@ -524,40 +343,9 @@ union erl_off_heap_ptr {
void* voidp;
};
-/* arrays that get malloced at startup */
-extern Port* erts_port;
-
-extern Uint erts_max_ports;
-extern Uint erts_port_tab_index_mask;
-extern erts_smp_atomic32_t erts_ports_snapshot;
-extern erts_smp_atomic_t erts_dead_ports_ptr;
-
-ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE void erts_may_save_closed_port(Port *prt)
-{
- ERTS_SMP_LC_ASSERT(erts_smp_lc_spinlock_is_locked(&prt->state_lck));
- if (prt->snapshot != erts_smp_atomic32_read_acqb(&erts_ports_snapshot)) {
- /* Dead ports are added from the end of the snapshot buffer */
- Eterm* tombstone;
- tombstone = (Eterm*) erts_smp_atomic_add_read_nob(&erts_dead_ports_ptr,
- -(erts_aint_t)sizeof(Eterm));
- ASSERT(tombstone+1 != NULL);
- ASSERT(prt->snapshot == erts_smp_atomic32_read_nob(&erts_ports_snapshot) - 1);
- *tombstone = prt->id;
- }
- /*else no ongoing snapshot or port was already included or created after snapshot */
-}
-
-#endif
-
/* controls warning mapping in error_logger */
extern Eterm node_cookie;
-extern erts_smp_atomic_t erts_bytes_out; /* no bytes written out */
-extern erts_smp_atomic_t erts_bytes_in; /* no bytes sent into the system */
extern Uint display_items; /* no of items to display in traces etc */
extern int erts_backtrace_depth;
@@ -695,54 +483,6 @@ do { \
#define WSTACK_ISEMPTY(s) (WSTK_CONCAT(s,_sp) == WSTK_CONCAT(s,_start))
#define WSTACK_POP(s) (*(--WSTK_CONCAT(s,_sp)))
-
-/* port status flags */
-
-#define ERTS_PORT_SFLG_CONNECTED ((Uint32) (1 << 0))
-/* Port have begun exiting */
-#define ERTS_PORT_SFLG_EXITING ((Uint32) (1 << 1))
-/* Distribution port */
-#define ERTS_PORT_SFLG_DISTRIBUTION ((Uint32) (1 << 2))
-#define ERTS_PORT_SFLG_BINARY_IO ((Uint32) (1 << 3))
-#define ERTS_PORT_SFLG_SOFT_EOF ((Uint32) (1 << 4))
-/* Flow control */
-#define ERTS_PORT_SFLG_PORT_BUSY ((Uint32) (1 << 5))
-/* Port is closing (no i/o accepted) */
-#define ERTS_PORT_SFLG_CLOSING ((Uint32) (1 << 6))
-/* Send a closed message when terminating */
-#define ERTS_PORT_SFLG_SEND_CLOSED ((Uint32) (1 << 7))
-/* Line orinted io on port */
-#define ERTS_PORT_SFLG_LINEBUF_IO ((Uint32) (1 << 8))
-/* Immortal port (only certain system ports) */
-#define ERTS_PORT_SFLG_IMMORTAL ((Uint32) (1 << 9))
-#define ERTS_PORT_SFLG_FREE ((Uint32) (1 << 10))
-#define ERTS_PORT_SFLG_FREE_SCHEDULED ((Uint32) (1 << 11))
-#define ERTS_PORT_SFLG_INITIALIZING ((Uint32) (1 << 12))
-/* Port uses port specific locking (opposed to driver specific locking) */
-#define ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK ((Uint32) (1 << 13))
-#define ERTS_PORT_SFLG_INVALID ((Uint32) (1 << 14))
-/* Last port to terminate halts the emulator */
-#define ERTS_PORT_SFLG_HALT ((Uint32) (1 << 15))
-#ifdef DEBUG
-/* Only debug: make sure all flags aren't cleared unintentionally */
-#define ERTS_PORT_SFLG_PORT_DEBUG ((Uint32) (1 << 31))
-#endif
-
-/* Combinations of port status flags */
-#define ERTS_PORT_SFLGS_DEAD \
- (ERTS_PORT_SFLG_FREE \
- | ERTS_PORT_SFLG_FREE_SCHEDULED \
- | ERTS_PORT_SFLG_INITIALIZING)
-#define ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \
- (ERTS_PORT_SFLGS_DEAD | ERTS_PORT_SFLG_INVALID)
-#define ERTS_PORT_SFLGS_INVALID_LOOKUP \
- (ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP \
- | ERTS_PORT_SFLG_CLOSING)
-#define ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP \
- (ERTS_PORT_SFLGS_INVALID_LOOKUP \
- | ERTS_PORT_SFLG_PORT_BUSY \
- | ERTS_PORT_SFLG_DISTRIBUTION)
-
/* binary.c */
void erts_emasculate_writable_binary(ProcBin* pb);
@@ -753,17 +493,43 @@ Eterm erts_realloc_binary(Eterm bin, size_t size);
/* erl_bif_info.c */
+Eterm
+erts_bld_port_info(Eterm **hpp,
+ ErlOffHeap *ohp,
+ Uint *szp,
+ Port *prt,
+ Eterm item);
+
void erts_bif_info_init(void);
/* bif.c */
Eterm erts_make_ref(Process *);
Eterm erts_make_ref_in_buffer(Eterm buffer[REF_THING_SIZE]);
+void erts_make_ref_in_array(Uint32 ref[ERTS_MAX_REF_NUMBERS]);
+
+ERTS_GLB_INLINE Eterm
+erts_proc_store_ref(Process *c_p, Uint32 ref[ERTS_MAX_REF_NUMBERS]);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE Eterm
+erts_proc_store_ref(Process *c_p, Uint32 ref[ERTS_MAX_REF_NUMBERS])
+{
+ Eterm *hp = HAlloc(c_p, REF_THING_SIZE);
+ write_ref_thing(hp, ref[0], ref[1], ref[2]);
+ return make_internal_ref(hp);
+}
+
+#endif
+
void erts_queue_monitor_message(Process *,
ErtsProcLocks*,
Eterm,
Eterm,
Eterm,
Eterm);
+void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a,
+ Eterm (*bif)(Process*,Eterm*));
void erts_init_bif(void);
Eterm erl_send(Process *p, Eterm to, Eterm msg);
@@ -771,13 +537,6 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg);
Eterm erl_is_function(Process* p, Eterm arg1, Eterm arg2);
-/* erl_bif_port.c */
-
-/* erl_bif_trace.c */
-Eterm erl_seq_trace_info(Process *p, Eterm arg1);
-void erts_system_monitor_clear(Process *c_p);
-void erts_system_profile_clear(Process *c_p);
-
/* beam_load.c */
typedef struct {
BeamInstr* current; /* Pointer to: Mod, Name, Arity */
@@ -786,24 +545,33 @@ typedef struct {
Eterm* fname_ptr; /* Pointer to fname table */
} FunctionInfo;
-struct LoaderState* erts_alloc_loader_state(void);
-Eterm erts_prepare_loading(struct LoaderState*, Process *c_p,
+Binary* erts_alloc_loader_state(void);
+Eterm erts_module_for_prepared_code(Binary* magic);
+Eterm erts_prepare_loading(Binary* loader_state, Process *c_p,
Eterm group_leader, Eterm* modp,
byte* code, Uint size);
-Eterm erts_finish_loading(struct LoaderState* stp, Process* c_p,
+Eterm erts_finish_loading(Binary* loader_state, Process* c_p,
ErtsProcLocks c_p_locks, Eterm* modp);
-Eterm erts_load_module(Process *c_p, ErtsProcLocks c_p_locks,
- Eterm group_leader, Eterm* mod, byte* code, Uint size);
+Eterm erts_preload_module(Process *c_p, ErtsProcLocks c_p_locks,
+ Eterm group_leader, Eterm* mod, byte* code, Uint size);
void init_load(void);
BeamInstr* find_function_from_pc(BeamInstr* pc);
Eterm* erts_build_mfa_item(FunctionInfo* fi, Eterm* hp,
Eterm args, Eterm* mfa_p);
-void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info);
void erts_set_current_function(FunctionInfo* fi, BeamInstr* current);
Eterm erts_module_info_0(Process* p, Eterm module);
Eterm erts_module_info_1(Process* p, Eterm module, Eterm what);
Eterm erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info);
+/* beam_ranges.c */
+void erts_init_ranges(void);
+void erts_start_staging_ranges(void);
+void erts_end_staging_ranges(int commit);
+void erts_update_ranges(BeamInstr* code, Uint size);
+void erts_remove_from_ranges(BeamInstr* code);
+UWord erts_ranges_sz(void);
+void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info);
+
/* break.c */
void init_break_handler(void);
void erts_set_ignore_break(void);
@@ -944,11 +712,6 @@ void erts_free_heap_frags(Process* p);
/* io.c */
-struct erl_drv_port_data_lock {
- erts_mtx_t mtx;
- erts_atomic_t refc;
-};
-
typedef struct {
char *name;
char *driver_name;
@@ -957,363 +720,33 @@ typedef struct {
#define ERTS_SPAWN_DRIVER 1
#define ERTS_SPAWN_EXECUTABLE 2
#define ERTS_SPAWN_ANY (ERTS_SPAWN_DRIVER | ERTS_SPAWN_EXECUTABLE)
-
int erts_add_driver_entry(ErlDrvEntry *drv, DE_Handle *handle, int driver_list_locked);
void erts_destroy_driver(erts_driver_t *drv);
-void erts_wake_process_later(Port*, Process*);
-int erts_open_driver(erts_driver_t*, Eterm, char*, SysDriverOpts*, int *);
-int erts_is_port_ioq_empty(Port *);
-void erts_terminate_port(Port *);
-void close_port(Eterm);
-void init_io(void);
-void cleanup_io(void);
-void erts_do_exit_port(Port *, Eterm, Eterm);
-void erts_port_command(Process *, Eterm, Port *, Eterm);
-Eterm erts_port_control(Process*, Port*, Uint, Eterm);
-int erts_write_to_port(Eterm caller_id, Port *p, Eterm list);
-void print_port_info(int, void *, int);
+int erts_save_suspend_process_on_port(Port*, Process*);
+Port *erts_open_driver(erts_driver_t*, Eterm, char*, SysDriverOpts*, int *, int *);
+void erts_init_io(int, int);
void erts_raw_port_command(Port*, byte*, Uint);
-void driver_report_exit(int, int);
+void driver_report_exit(ErlDrvPort, int);
LineBuf* allocate_linebuf(int);
int async_ready(Port *, void*);
-Sint erts_test_next_port(int, Uint);
ErtsPortNames *erts_get_port_names(Eterm);
void erts_free_port_names(ErtsPortNames *);
Uint erts_port_ioq_size(Port *pp);
void erts_stale_drv_select(Eterm, ErlDrvEvent, int, int);
-void erts_port_cleanup(Port *);
-void erts_fire_port_monitor(Port *prt, Eterm ref);
Port *erts_get_heart_port(void);
-#ifdef ERTS_SMP
-void erts_smp_xports_unlock(Port *);
-#endif
-
#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_COUNT)
void erts_lcnt_enable_io_lock_count(int enable);
#endif
-#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
-int erts_lc_is_port_locked(Port *);
-#endif
-
-ERTS_GLB_INLINE void erts_smp_port_state_lock(Port*);
-ERTS_GLB_INLINE void erts_smp_port_state_unlock(Port*);
-
-ERTS_GLB_INLINE int erts_smp_port_trylock(Port *prt);
-ERTS_GLB_INLINE void erts_smp_port_lock(Port *prt);
-ERTS_GLB_INLINE void erts_smp_port_unlock(Port *prt);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE void
-erts_smp_port_state_lock(Port* prt)
-{
-#ifdef ERTS_SMP
- erts_smp_spin_lock(&prt->state_lck);
-#endif
-}
-
-ERTS_GLB_INLINE void
-erts_smp_port_state_unlock(Port *prt)
-{
-#ifdef ERTS_SMP
- erts_smp_spin_unlock(&prt->state_lck);
-#endif
-}
-
-
-ERTS_GLB_INLINE int
-erts_smp_port_trylock(Port *prt)
-{
-#ifdef ERTS_SMP
- int res;
-
- ASSERT(erts_smp_atomic_read_nob(&prt->refc) > 0);
- erts_smp_atomic_inc_nob(&prt->refc);
- res = erts_smp_mtx_trylock(prt->lock);
- if (res == EBUSY) {
- erts_smp_atomic_dec_nob(&prt->refc);
- }
-
- return res;
-#else /* !ERTS_SMP */
- return 0;
-#endif
-}
-
-ERTS_GLB_INLINE void
-erts_smp_port_lock(Port *prt)
-{
-#ifdef ERTS_SMP
- ASSERT(erts_smp_atomic_read_nob(&prt->refc) > 0);
- erts_smp_atomic_inc_nob(&prt->refc);
- erts_smp_mtx_lock(prt->lock);
-#endif
-}
-
-ERTS_GLB_INLINE void
-erts_smp_port_unlock(Port *prt)
-{
-#ifdef ERTS_SMP
- erts_aint_t refc;
- erts_smp_mtx_unlock(prt->lock);
- refc = erts_smp_atomic_dec_read_nob(&prt->refc);
- ASSERT(refc >= 0);
- if (refc == 0)
- erts_port_cleanup(prt);
-#endif
-}
-
-#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
-
-
-#define ERTS_INVALID_PORT_OPT(PP, ID, FLGS) \
- (!(PP) || ((PP)->status & (FLGS)) || (PP)->id != (ID))
-
-/* port lookup */
-
-#define INVALID_PORT(PP, ID) \
- ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_LOOKUP)
-
-/* Invalidate trace port if anything suspicious, for instance
- * that the port is a distribution port or it is busy.
- */
-#define INVALID_TRACER_PORT(PP, ID) \
- ERTS_INVALID_PORT_OPT((PP), (ID), ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP)
-
-#define ERTS_PORT_SCHED_ID(P, ID) \
- ((Uint) (UWord) erts_prtsd_set((P), ERTS_PSD_SCHED_ID, (void *) (UWord) (ID)))
-
-#ifdef ERTS_SMP
-Port *erts_de2port(DistEntry *, Process *, ErtsProcLocks);
-#endif
-
-#define erts_id2port(ID, P, PL) \
- erts_id2port_sflgs((ID), (P), (PL), ERTS_PORT_SFLGS_INVALID_LOOKUP)
-
-ERTS_GLB_INLINE Port*erts_id2port_sflgs(Eterm, Process *, ErtsProcLocks, Uint32);
-ERTS_GLB_INLINE void erts_port_release(Port *);
-ERTS_GLB_INLINE Port*erts_drvport2port(ErlDrvPort);
-ERTS_GLB_INLINE Port*erts_drvportid2port(Eterm);
-ERTS_GLB_INLINE Uint32 erts_portid2status(Eterm id);
-ERTS_GLB_INLINE int erts_is_port_alive(Eterm id);
-ERTS_GLB_INLINE int erts_is_valid_tracer_port(Eterm id);
-ERTS_GLB_INLINE void erts_port_status_bandor_set(Port *, Uint32, Uint32);
-ERTS_GLB_INLINE void erts_port_status_band_set(Port *, Uint32);
-ERTS_GLB_INLINE void erts_port_status_bor_set(Port *, Uint32);
-ERTS_GLB_INLINE void erts_port_status_set(Port *, Uint32);
-ERTS_GLB_INLINE Uint32 erts_port_status_get(Port *);
-
-#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-
-ERTS_GLB_INLINE Port*
-erts_id2port_sflgs(Eterm id, Process *c_p, ErtsProcLocks c_p_locks, Uint32 sflgs)
-{
-#ifdef ERTS_SMP
- int no_proc_locks = !c_p || !c_p_locks;
-#endif
- Port *prt;
-
- if (is_not_internal_port(id))
- return NULL;
-
- prt = &erts_port[internal_port_index(id)];
-
- erts_smp_port_state_lock(prt);
- if (ERTS_INVALID_PORT_OPT(prt, id, sflgs)) {
- erts_smp_port_state_unlock(prt);
- prt = NULL;
- }
-#ifdef ERTS_SMP
- else {
- erts_smp_atomic_inc_nob(&prt->refc);
- erts_smp_port_state_unlock(prt);
-
- if (no_proc_locks)
- erts_smp_mtx_lock(prt->lock);
- else if (erts_smp_mtx_trylock(prt->lock) == EBUSY) {
- /* Unlock process locks, and acquire locks in lock order... */
- erts_smp_proc_unlock(c_p, c_p_locks);
- erts_smp_mtx_lock(prt->lock);
- erts_smp_proc_lock(c_p, c_p_locks);
- }
-
- /* The id may not have changed... */
- ERTS_SMP_LC_ASSERT(prt->id == id);
- /* ... but status may have... */
- if (prt->status & sflgs) {
- erts_smp_port_unlock(prt); /* Also decrements refc... */
- prt = NULL;
- }
- }
-#endif
-
- return prt;
-}
-
-ERTS_GLB_INLINE void
-erts_port_release(Port *prt)
-{
-#ifdef ERTS_SMP
- erts_smp_port_unlock(prt);
-#else
- if (prt->status & ERTS_PORT_SFLGS_DEAD)
- erts_port_cleanup(prt);
-#endif
-}
-
-ERTS_GLB_INLINE Port*
-erts_drvport2port(ErlDrvPort drvport)
-{
- int ix = (int) drvport;
- if (ix < 0 || erts_max_ports <= ix)
- return NULL;
- if (erts_port[ix].status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
- return NULL;
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[ix]));
- return &erts_port[ix];
-}
-
-ERTS_GLB_INLINE Port*
-erts_drvportid2port(Eterm id)
-{
- int ix;
- if (is_not_internal_port(id))
- return NULL;
- ix = (int) internal_port_index(id);
- if (erts_max_ports <= ix)
- return NULL;
- if (erts_port[ix].status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
- return NULL;
- if (erts_port[ix].id != id)
- return NULL;
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[ix]));
- return &erts_port[ix];
-}
-
-ERTS_GLB_INLINE Uint32
-erts_portid2status(Eterm id)
-{
- if (is_not_internal_port(id))
- return ERTS_PORT_SFLG_INVALID;
- else {
- Uint32 status;
- int ix = internal_port_index(id);
- if (erts_max_ports <= ix)
- return ERTS_PORT_SFLG_INVALID;
- erts_smp_port_state_lock(&erts_port[ix]);
- if (erts_port[ix].id == id)
- status = erts_port[ix].status;
- else
- status = ERTS_PORT_SFLG_INVALID;
- erts_smp_port_state_unlock(&erts_port[ix]);
- return status;
- }
-}
-
-ERTS_GLB_INLINE int
-erts_is_port_alive(Eterm id)
-{
- return !(erts_portid2status(id) & (ERTS_PORT_SFLG_INVALID
- | ERTS_PORT_SFLGS_DEAD));
-}
-
-ERTS_GLB_INLINE int
-erts_is_valid_tracer_port(Eterm id)
-{
- return !(erts_portid2status(id) & ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
-}
-
-ERTS_GLB_INLINE void erts_port_status_bandor_set(Port *prt,
- Uint32 band_status,
- Uint32 bor_status)
-{
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- erts_smp_port_state_lock(prt);
- prt->status &= band_status;
- prt->status |= bor_status;
- erts_smp_port_state_unlock(prt);
-}
-
-ERTS_GLB_INLINE void erts_port_status_band_set(Port *prt, Uint32 status)
-{
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- erts_smp_port_state_lock(prt);
- prt->status &= status;
- erts_smp_port_state_unlock(prt);
-}
-
-ERTS_GLB_INLINE void erts_port_status_bor_set(Port *prt, Uint32 status)
-{
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- erts_smp_port_state_lock(prt);
- prt->status |= status;
- erts_smp_port_state_unlock(prt);
-}
-
-ERTS_GLB_INLINE void erts_port_status_set(Port *prt, Uint32 status)
-{
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- erts_smp_port_state_lock(prt);
- prt->status = status;
- erts_smp_port_state_unlock(prt);
-}
-
-ERTS_GLB_INLINE Uint32 erts_port_status_get(Port *prt)
-{
- Uint32 res;
- erts_smp_port_state_lock(prt);
- res = prt->status;
- erts_smp_port_state_unlock(prt);
- return res;
-}
-#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
-
/* erl_drv_thread.c */
void erl_drv_thr_init(void);
-/* time.c */
-
/* utils.c */
-
-/*
- * To be used to silence unused result warnings, but do not abuse it.
- */
-void erts_silence_warn_unused_result(long unused);
-
void erts_cleanup_offheap(ErlOffHeap *offheap);
-Uint erts_fit_in_bits(Uint);
-int list_length(Eterm);
-Export* erts_find_function(Eterm, Eterm, unsigned int);
-int erts_is_builtin(Eterm, Eterm, int);
-Uint32 make_broken_hash(Eterm);
-Uint32 block_hash(byte *, unsigned, Uint32);
-Uint32 make_hash2(Eterm);
-Uint32 make_hash(Eterm);
-
-
-Eterm erts_bld_atom(Uint **hpp, Uint *szp, char *str);
-Eterm erts_bld_uint(Uint **hpp, Uint *szp, Uint ui);
-Eterm erts_bld_uword(Uint **hpp, Uint *szp, UWord uw);
-Eterm erts_bld_uint64(Uint **hpp, Uint *szp, Uint64 ui64);
-Eterm erts_bld_sint64(Uint **hpp, Uint *szp, Sint64 si64);
-Eterm erts_bld_cons(Uint **hpp, Uint *szp, Eterm car, Eterm cdr);
-Eterm erts_bld_tuple(Uint **hpp, Uint *szp, Uint arity, ...);
-Eterm erts_bld_tuplev(Uint **hpp, Uint *szp, Uint arity, Eterm terms[]);
-Eterm erts_bld_string_n(Uint **hpp, Uint *szp, const char *str, Sint len);
-#define erts_bld_string(hpp,szp,str) erts_bld_string_n(hpp,szp,str,strlen(str))
-Eterm erts_bld_list(Uint **hpp, Uint *szp, Sint length, Eterm terms[]);
-Eterm erts_bld_2tup_list(Uint **hpp, Uint *szp,
- Sint length, Eterm terms1[], Uint terms2[]);
-Eterm
-erts_bld_atom_uint_2tup_list(Uint **hpp, Uint *szp,
- Sint length, Eterm atoms[], Uint uints[]);
-Eterm
-erts_bld_atom_2uint_3tup_list(Uint **hpp, Uint *szp, Sint length,
- Eterm atoms[], Uint uints1[], Uint uints2[]);
+Export* erts_find_function(Eterm, Eterm, unsigned int, ErtsCodeIndex);
Eterm store_external_or_ref_in_proc_(Process *, Eterm);
Eterm store_external_or_ref_(Uint **, ErlOffHeap*, Eterm);
@@ -1328,42 +761,6 @@ Eterm store_external_or_ref_(Uint **, ErlOffHeap*, Eterm);
(ASSERT_EXPR(is_node_container((NC))), \
IS_CONST((NC)) ? (NC) : store_external_or_ref_in_proc_((Pp), (NC)))
-void erts_init_utils(void);
-void erts_init_utils_mem(void);
-
-erts_dsprintf_buf_t *erts_create_tmp_dsbuf(Uint);
-void erts_destroy_tmp_dsbuf(erts_dsprintf_buf_t *);
-
-#if HALFWORD_HEAP
-int eq_rel(Eterm a, Eterm* a_base, Eterm b, Eterm* b_base);
-# define eq(A,B) eq_rel(A,NULL,B,NULL)
-#else
-int eq(Eterm, Eterm);
-# define eq_rel(A,A_BASE,B,B_BASE) eq(A,B)
-#endif
-
-#define EQ(x,y) (((x) == (y)) || (is_not_both_immed((x),(y)) && eq((x),(y))))
-
-#if HALFWORD_HEAP
-Sint cmp_rel(Eterm, Eterm*, Eterm, Eterm*);
-#define CMP(A,B) cmp_rel(A,NULL,B,NULL)
-#else
-Sint cmp(Eterm, Eterm);
-#define cmp_rel(A,A_BASE,B,B_BASE) cmp(A,B)
-#define CMP(A,B) cmp(A,B)
-#endif
-#define cmp_lt(a,b) (CMP((a),(b)) < 0)
-#define cmp_le(a,b) (CMP((a),(b)) <= 0)
-#define cmp_eq(a,b) (CMP((a),(b)) == 0)
-#define cmp_ne(a,b) (CMP((a),(b)) != 0)
-#define cmp_ge(a,b) (CMP((a),(b)) >= 0)
-#define cmp_gt(a,b) (CMP((a),(b)) > 0)
-
-#define CMP_LT(a,b) ((a) != (b) && cmp_lt((a),(b)))
-#define CMP_GE(a,b) ((a) == (b) || cmp_ge((a),(b)))
-#define CMP_EQ(a,b) ((a) == (b) || cmp_eq((a),(b)))
-#define CMP_NE(a,b) ((a) != (b) && cmp_ne((a),(b)))
-
/* duplicates from big.h */
int term_to_Uint(Eterm term, Uint *up);
int term_to_UWord(Eterm, UWord*);
@@ -1400,79 +797,6 @@ Eterm erts_convert_native_to_filename(Process *p, byte *bytes);
#define ERTS_UTF8_ERROR 2
#define ERTS_UTF8_ANALYZE_MORE 3
-/* erl_trace.c */
-void erts_init_trace(void);
-void erts_trace_check_exiting(Eterm exiting);
-Eterm erts_set_system_seq_tracer(Process *c_p,
- ErtsProcLocks c_p_locks,
- Eterm new);
-Eterm erts_get_system_seq_tracer(void);
-void erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp);
-void erts_get_default_tracing(Uint *flagsp, Eterm *tracerp);
-void erts_set_system_monitor(Eterm monitor);
-Eterm erts_get_system_monitor(void);
-
-#ifdef ERTS_SMP
-void erts_check_my_tracer_proc(Process *);
-void erts_block_sys_msg_dispatcher(void);
-void erts_release_sys_msg_dispatcher(void);
-void erts_foreach_sys_msg_in_q(void (*func)(Eterm,
- Eterm,
- Eterm,
- ErlHeapFragment *));
-void erts_queue_error_logger_message(Eterm, Eterm, ErlHeapFragment *);
-#endif
-
-void erts_send_sys_msg_proc(Eterm, Eterm, Eterm, ErlHeapFragment *);
-void trace_send(Process*, Eterm, Eterm);
-void trace_receive(Process*, Eterm);
-Uint32 erts_call_trace(Process *p, BeamInstr mfa[], Binary *match_spec, Eterm* args,
- int local, Eterm *tracer_pid);
-void erts_trace_return(Process* p, BeamInstr* fi, Eterm retval, Eterm *tracer_pid);
-void erts_trace_exception(Process* p, BeamInstr mfa[], Eterm class, Eterm value,
- Eterm *tracer);
-void erts_trace_return_to(Process *p, BeamInstr *pc);
-void trace_sched(Process*, Eterm);
-void trace_proc(Process*, Process*, Eterm, Eterm);
-void trace_proc_spawn(Process*, Eterm pid, Eterm mod, Eterm func, Eterm args);
-void save_calls(Process *p, Export *);
-void trace_gc(Process *p, Eterm what);
-/* port tracing */
-void trace_virtual_sched(Process*, Eterm);
-void trace_sched_ports(Port *pp, Eterm);
-void trace_sched_ports_where(Port *pp, Eterm, Eterm);
-void trace_port(Port *, Eterm what, Eterm data);
-void trace_port_open(Port *, Eterm calling_pid, Eterm drv_name);
-
-/* system_profile */
-void erts_set_system_profile(Eterm profile);
-Eterm erts_get_system_profile(void);
-void profile_scheduler(Eterm scheduler_id, Eterm);
-void profile_scheduler_q(Eterm scheduler_id, Eterm state, Eterm no_schedulers, Uint Ms, Uint s, Uint us);
-void profile_runnable_proc(Process* p, Eterm status);
-void profile_runnable_port(Port* p, Eterm status);
-void erts_system_profile_setup_active_schedulers(void);
-
-/* system_monitor */
-void monitor_long_gc(Process *p, Uint time);
-void monitor_large_heap(Process *p);
-void monitor_generic(Process *p, Eterm type, Eterm spec);
-Uint erts_trace_flag2bit(Eterm flag);
-int erts_trace_flags(Eterm List,
- Uint *pMask, Eterm *pTracer, int *pCpuTimestamp);
-Eterm erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr *I);
-
-#ifdef ERTS_SMP
-void erts_send_pending_trace_msgs(ErtsSchedulerData *esdp);
-#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP) \
-do { \
- if ((ESDP)->pending_trace_msgs) \
- erts_send_pending_trace_msgs((ESDP)); \
-} while (0)
-#else
-#define ERTS_SMP_CHK_PEND_TRACE_MSGS(ESDP)
-#endif
-
void bin_write(int, void*, byte*, size_t);
int intlist_to_buf(Eterm, char*, int); /* most callers pass plain char*'s */
@@ -1490,9 +814,16 @@ char* Sint_to_buf(Sint, struct Sint_buf*);
#define ERTS_IOLIST_TYPE 2
Eterm buf_to_intlist(Eterm**, char*, size_t, Eterm); /* most callers pass plain char*'s */
-int io_list_to_buf(Eterm, char*, int);
-int io_list_to_buf2(Eterm, char*, int);
-int erts_iolist_size(Eterm, Uint *);
+
+#define ERTS_IOLIST_TO_BUF_OVERFLOW (~((ErlDrvSizeT) 0))
+#define ERTS_IOLIST_TO_BUF_TYPE_ERROR (~((ErlDrvSizeT) 1))
+#define ERTS_IOLIST_TO_BUF_FAILED(R) \
+ (((R) & (~((ErlDrvSizeT) 1))) == (~((ErlDrvSizeT) 1)))
+#define ERTS_IOLIST_TO_BUF_SUCCEEDED(R) \
+ (!ERTS_IOLIST_TO_BUF_FAILED((R)))
+
+ErlDrvSizeT erts_iolist_to_buf(Eterm, char*, ErlDrvSizeT);
+int erts_iolist_size(Eterm, ErlDrvSizeT *);
int is_string(Eterm);
void erl_at_exit(void (*) (void*), void*);
Eterm collect_memory(Process *);
@@ -1537,39 +868,6 @@ Uint erts_current_reductions(Process* current, Process *p);
int erts_print_system_version(int to, void *arg, Process *c_p);
int erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* reg);
-#define seq_trace_output(token, msg, type, receiver, process) \
-seq_trace_output_generic((token), (msg), (type), (receiver), (process), NIL)
-#define seq_trace_output_exit(token, msg, type, receiver, exitfrom) \
-seq_trace_output_generic((token), (msg), (type), (receiver), NULL, (exitfrom))
-void seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
- Eterm receiver, Process *process, Eterm exitfrom);
-
-int seq_trace_update_send(Process *process);
-
-Eterm erts_seq_trace(Process *process,
- Eterm atom_type, Eterm atom_true_or_false,
- int build_result);
-
-struct trace_pattern_flags {
- unsigned int breakpoint : 1; /* Set if any other is set */
- unsigned int local : 1; /* Local call trace breakpoint */
- unsigned int meta : 1; /* Metadata trace breakpoint */
- unsigned int call_count : 1; /* Fast call count breakpoint */
- unsigned int call_time : 1; /* Fast call time breakpoint */
-};
-extern const struct trace_pattern_flags erts_trace_pattern_flags_off;
-extern int erts_call_time_breakpoint_tracing;
-int erts_set_trace_pattern(Eterm* mfa, int specified,
- Binary* match_prog_set, Binary *meta_match_prog_set,
- int on, struct trace_pattern_flags,
- Eterm meta_tracer_pid);
-void
-erts_get_default_trace_pattern(int *trace_pattern_is_on,
- Binary **match_spec,
- Binary **meta_match_spec,
- struct trace_pattern_flags *trace_pattern_flags,
- Eterm *meta_tracer_pid);
-void erts_bif_trace_init(void);
/*
** Call_trace uses this API for the parameter matching functions
@@ -1615,20 +913,19 @@ extern void erts_match_prog_foreach_offheap(Binary *b,
breakpoint functions */
#define MATCH_SET_EXCEPTION_TRACE (0x4) /* exception trace requested */
#define MATCH_SET_RX_TRACE (MATCH_SET_RETURN_TRACE|MATCH_SET_EXCEPTION_TRACE)
-/*
- * Flag values when tracing bif
- * Future note: flag field is 8 bits
- */
-#define BIF_TRACE_AS_LOCAL (0x1)
-#define BIF_TRACE_AS_GLOBAL (0x2)
-#define BIF_TRACE_AS_META (0x4)
-#define BIF_TRACE_AS_CALL_TIME (0x8)
extern erts_driver_t vanilla_driver;
extern erts_driver_t spawn_driver;
extern erts_driver_t fd_driver;
/* Should maybe be placed in erl_message.h, but then we get an include mess. */
+ERTS_GLB_INLINE Eterm *
+erts_alloc_message_heap_state(Uint size,
+ ErlHeapFragment **bpp,
+ ErlOffHeap **ohpp,
+ Process *receiver,
+ ErtsProcLocks *receiver_locks,
+ erts_aint32_t *statep);
ERTS_GLB_INLINE Eterm *
erts_alloc_message_heap(Uint size,
@@ -1651,16 +948,22 @@ erts_alloc_message_heap(Uint size,
*/
ERTS_GLB_INLINE Eterm *
-erts_alloc_message_heap(Uint size,
- ErlHeapFragment **bpp,
- ErlOffHeap **ohpp,
- Process *receiver,
- ErtsProcLocks *receiver_locks)
+erts_alloc_message_heap_state(Uint size,
+ ErlHeapFragment **bpp,
+ ErlOffHeap **ohpp,
+ Process *receiver,
+ ErtsProcLocks *receiver_locks,
+ erts_aint32_t *statep)
{
Eterm *hp;
+ erts_aint32_t state;
#ifdef ERTS_SMP
int locked_main = 0;
- ErtsProcLocks ulocks = *receiver_locks & ERTS_PROC_LOCKS_MSG_SEND;
+ state = erts_smp_atomic32_read_acqb(&receiver->state);
+ if (statep)
+ *statep = state;
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
+ goto allocate_in_mbuf;
#endif
if (size > (Uint) INT_MAX)
@@ -1676,20 +979,19 @@ erts_alloc_message_heap(Uint size,
#ifdef ERTS_SMP
try_allocate_on_heap:
#endif
- if (ERTS_PROC_IS_EXITING(receiver)
+ state = erts_smp_atomic32_read_nob(&receiver->state);
+ if (statep)
+ *statep = state;
+ if ((state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
|| HEAP_LIMIT(receiver) - HEAP_TOP(receiver) <= size) {
#ifdef ERTS_SMP
- if (locked_main)
- ulocks |= ERTS_PROC_LOCK_MAIN;
+ if (locked_main) {
+ *receiver_locks &= ~ERTS_PROC_LOCK_MAIN;
+ erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MAIN);
+ }
#endif
goto allocate_in_mbuf;
}
-#ifdef ERTS_SMP
- if (ulocks) {
- erts_smp_proc_unlock(receiver, ulocks);
- *receiver_locks &= ~ulocks;
- }
-#endif
hp = HEAP_TOP(receiver);
HEAP_TOP(receiver) = hp + size;
*bpp = NULL;
@@ -1705,12 +1007,6 @@ erts_alloc_message_heap(Uint size,
else {
ErlHeapFragment *bp;
allocate_in_mbuf:
-#ifdef ERTS_SMP
- if (ulocks) {
- *receiver_locks &= ~ulocks;
- erts_smp_proc_unlock(receiver, ulocks);
- }
-#endif
bp = new_message_buffer(size);
hp = bp->mem;
*bpp = bp;
@@ -1720,6 +1016,17 @@ erts_alloc_message_heap(Uint size,
return hp;
}
+ERTS_GLB_INLINE Eterm *
+erts_alloc_message_heap(Uint size,
+ ErlHeapFragment **bpp,
+ ErlOffHeap **ohpp,
+ Process *receiver,
+ ErtsProcLocks *receiver_locks)
+{
+ return erts_alloc_message_heap_state(size, bpp, ohpp, receiver,
+ receiver_locks, NULL);
+}
+
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
#if !HEAP_ON_C_STACK
@@ -1802,15 +1109,15 @@ dtrace_pid_str(Eterm pid, char *process_buf)
ERTS_GLB_INLINE void
dtrace_proc_str(Process *process, char *process_buf)
{
- dtrace_pid_str(process->id, process_buf);
+ dtrace_pid_str(process->common.id, process_buf);
}
ERTS_GLB_INLINE void
dtrace_port_str(Port *port, char *port_buf)
{
erts_snprintf(port_buf, DTRACE_TERM_BUF_SIZE, "#Port<%lu.%lu>",
- port_channel_no(port->id),
- port_number(port->id));
+ port_channel_no(port->common.id),
+ port_number(port->common.id));
}
ERTS_GLB_INLINE void
diff --git a/erts/emulator/beam/index.c b/erts/emulator/beam/index.c
index 75d0d598a2..79c3ecf1b3 100644
--- a/erts/emulator/beam/index.c
+++ b/erts/emulator/beam/index.c
@@ -68,14 +68,14 @@ erts_index_init(ErtsAlcType_t type, IndexTable* t, char* name,
return t;
}
-int
-index_put(IndexTable* t, void* tmpl)
+IndexSlot*
+index_put_entry(IndexTable* t, void* tmpl)
{
int ix;
IndexSlot* p = (IndexSlot*) hash_put(&t->htable, tmpl);
if (p->index >= 0) {
- return p->index;
+ return p;
}
ix = t->entries;
@@ -93,7 +93,7 @@ index_put(IndexTable* t, void* tmpl)
t->entries++;
p->index = ix;
t->seg_table[ix>>INDEX_PAGE_SHIFT][ix&INDEX_PAGE_MASK] = p;
- return ix;
+ return p;
}
int index_get(IndexTable* t, void* tmpl)
@@ -136,3 +136,18 @@ void erts_index_merge(Hash* src, IndexTable* dst)
}
}
}
+
+void index_erase_latest_from(IndexTable* t, Uint from_ix)
+{
+ if(from_ix < (Uint)t->entries) {
+ int ix;
+ for (ix = from_ix; ix < t->entries; ix++) {
+ IndexSlot* obj = t->seg_table[ix>>INDEX_PAGE_SHIFT][ix&INDEX_PAGE_MASK];
+ hash_erase(&t->htable, obj);
+ }
+ t->entries = from_ix;
+ }
+ else {
+ ASSERT(from_ix == t->entries);
+ }
+}
diff --git a/erts/emulator/beam/index.h b/erts/emulator/beam/index.h
index 4eb9b1f992..3afe48d007 100644
--- a/erts/emulator/beam/index.h
+++ b/erts/emulator/beam/index.h
@@ -55,12 +55,24 @@ void index_info(int, void *, IndexTable*);
int index_table_sz(IndexTable *);
int index_get(IndexTable*, void*);
-int index_put(IndexTable*, void*);
+
+IndexSlot* index_put_entry(IndexTable*, void*);
void erts_index_merge(Hash*, IndexTable*);
+/* Erase all entries with index 'ix' and higher
+*/
+void index_erase_latest_from(IndexTable*, Uint ix);
+
+ERTS_GLB_INLINE int index_put(IndexTable*, void*);
ERTS_GLB_INLINE IndexSlot* erts_index_lookup(IndexTable*, Uint);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE int index_put(IndexTable* t, void* tmpl)
+{
+ return index_put_entry(t, tmpl)->index;
+}
+
ERTS_GLB_INLINE IndexSlot*
erts_index_lookup(IndexTable* t, Uint ix)
{
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 609fe9f5fb..e466f0e299 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -43,6 +43,8 @@
#include "erl_version.h"
#include "error.h"
#include "erl_async.h"
+#define ERTS_WANT_EXTERNAL_TAGS
+#include "external.h"
#include "dtrace-wrapper.h"
extern ErlDrvEntry fd_driver_entry;
@@ -51,34 +53,40 @@ extern ErlDrvEntry spawn_driver_entry;
extern ErlDrvEntry *driver_tab[]; /* table of static drivers, only used during initialization */
erts_driver_t *driver_list; /* List of all drivers, static and dynamic. */
-erts_smp_mtx_t erts_driver_list_lock; /* Mutex for driver list */
+erts_smp_rwmtx_t erts_driver_list_lock; /* Mutex for driver list */
static erts_smp_tsd_key_t driver_list_lock_status_key; /*stop recursive locks when calling
driver init */
static erts_smp_tsd_key_t driver_list_last_error_key; /* Save last DDLL error on a
per thread basis (for BC interfaces) */
-Port* erts_port; /* The port table */
+ErtsPTab erts_port erts_align_attribute(ERTS_CACHE_LINE_SIZE); /* The port table */
erts_smp_atomic_t erts_bytes_out; /* No bytes sent out of the system */
erts_smp_atomic_t erts_bytes_in; /* No bytes gotten into the system */
-Uint erts_max_ports;
-Uint erts_port_tab_index_mask;
-
const ErlDrvTermData driver_term_nil = (ErlDrvTermData)NIL;
+const Port erts_invalid_port = {{ERTS_INVALID_PORT}};
+
erts_driver_t vanilla_driver;
erts_driver_t spawn_driver;
erts_driver_t fd_driver;
+int erts_port_synchronous_ops = 0;
+int erts_port_schedule_all_ops = 0;
+int erts_port_parallelism = 0;
+
+static void deliver_result(Eterm sender, Eterm pid, Eterm res);
static int init_driver(erts_driver_t *, ErlDrvEntry *, DE_Handle *);
static void terminate_port(Port *p);
static void pdl_init(void);
#ifdef ERTS_SMP
static void driver_monitor_lock_pdl(Port *p);
static void driver_monitor_unlock_pdl(Port *p);
+#define DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(Port) erts_thr_drvport2port_raw((Port), 1)
#define DRV_MONITOR_LOCK_PDL(Port) driver_monitor_lock_pdl(Port)
#define DRV_MONITOR_UNLOCK_PDL(Port) driver_monitor_unlock_pdl(Port)
#else
+#define DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(Port) erts_thr_drvport2port_raw((Port), 0)
#define DRV_MONITOR_LOCK_PDL(Port) /* nothing */
#define DRV_MONITOR_UNLOCK_PDL(Port) /* nothing */
#endif
@@ -89,36 +97,12 @@ static void driver_monitor_unlock_pdl(Port *p);
static ERTS_INLINE ErlIOQueue*
drvport2ioq(ErlDrvPort drvport)
{
- int ix = (int) drvport;
- Uint32 status;
-
- if (ix < 0 || erts_max_ports <= ix)
+ Port *prt = erts_thr_drvport2port_raw(drvport, 0);
+ erts_aint32_t state = erts_atomic32_read_nob(&prt->state);
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
return NULL;
-
- if (erts_get_scheduler_data()) {
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[ix]));
- ERTS_LC_ASSERT(!erts_port[ix].port_data_lock
- || erts_lc_mtx_is_locked(
- &erts_port[ix].port_data_lock->mtx));
-
- status = erts_port[ix].status;
- }
- else {
- erts_smp_port_state_lock(&erts_port[ix]);
- status = erts_port[ix].status;
- erts_smp_port_state_unlock(&erts_port[ix]);
-
- ERTS_LC_ASSERT((status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
- || erts_port[ix].port_data_lock);
- ERTS_LC_ASSERT(!erts_port[ix].port_data_lock
- || erts_lc_mtx_is_locked(
- &erts_port[ix].port_data_lock->mtx));
-
- }
-
- return ((status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
- ? NULL
- : &erts_port[ix].ioq);
+ else
+ return &prt->ioq;
}
static ERTS_INLINE int
@@ -196,27 +180,13 @@ typedef struct line_buf_context {
dtrace_port_str((PORT), port_str);
#endif
-/* The 'number' field in a port now has two parts: the lowest bits
- contain the index in the port table, and the higher bits are a counter
- which is incremented each time we look for a free port and start from
- the beginning of the table. erts_max_ports is the number of file descriptors,
- rounded up to a power of 2.
- To get the index from a port, use the macro 'internal_port_index';
- 'port_number' returns the whole number field.
-*/
-
-static erts_smp_spinlock_t get_free_port_lck;
-static Uint last_port_num;
-static Uint port_num_mask;
-erts_smp_atomic32_t erts_ports_snapshot; /* Identifies the _next_ snapshot (not the ongoing) */
-
-
static ERTS_INLINE void
kill_port(Port *pp)
{
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
+ erts_ptab_delete_element(&erts_port, &pp->common); /* Time of death */
erts_port_task_free_port(pp);
- ASSERT(pp->status & ERTS_PORT_SFLGS_DEAD);
+ /* In non-smp case the port structure may have been deallocated now */
}
#ifdef ERTS_SMP
@@ -227,148 +197,280 @@ erts_lc_is_port_locked(Port *prt)
{
if (!prt)
return 0;
+ ERTS_SMP_LC_ASSERT(prt->lock);
return erts_smp_lc_mtx_is_locked(prt->lock);
}
#endif
#endif /* #ifdef ERTS_SMP */
-static int
-get_free_port(void)
-{
- Uint num;
- Uint tries = erts_max_ports;
- Port* port;
+static void initq(Port* prt);
- erts_smp_spin_lock(&get_free_port_lck);
- num = last_port_num + 1;
- for (;; ++num) {
- port = &erts_port[num & erts_port_tab_index_mask];
+#if defined(ERTS_ENABLE_LOCK_CHECK) || defined(ERTS_ENABLE_LOCK_COUNT)
+#define ERTS_PORT_INIT_INSTR_NEED_ID 1
+#else
+#define ERTS_PORT_INIT_INSTR_NEED_ID 0
+#endif
- erts_smp_port_state_lock(port);
- if (port->status & ERTS_PORT_SFLG_FREE) {
- last_port_num = num;
- erts_smp_spin_unlock(&get_free_port_lck);
- break;
- }
- erts_smp_port_state_unlock(port);
+static ERTS_INLINE void port_init_instr(Port *prt
+#if ERTS_PORT_INIT_INSTR_NEED_ID
+ , Eterm id
+#endif
+ )
+{
+#if !ERTS_PORT_INIT_INSTR_NEED_ID
+ Eterm id = NIL; /* Not used */
+#endif
- if (--tries == 0) {
- erts_smp_spin_unlock(&get_free_port_lck);
- return -1;
- }
+ /*
+ * Stuff that need to be initialized with the port id
+ * in the instrumented case, but not in the normal case.
+ */
+#ifdef ERTS_SMP
+ ASSERT(prt->drv_ptr && prt->lock);
+ if (!prt->drv_ptr->lock) {
+ char *lock_str = "port_lock";
+#ifdef ERTS_ENABLE_LOCK_COUNT
+ if (!(erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK))
+ lock_str = NULL;
+#endif
+ erts_mtx_init_locked_x(prt->lock, lock_str, id);
}
- port->status = ERTS_PORT_SFLG_INITIALIZING;
+#endif
+ erts_port_task_init_sched(&prt->sched, id);
+}
+
+#if !ERTS_PORT_INIT_INSTR_NEED_ID
+static ERTS_INLINE void port_init_instr_abort(Port *prt)
+{
#ifdef ERTS_SMP
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 0);
- erts_smp_atomic_set_nob(&port->refc, 2); /* Port alive + lock */
-#endif
- erts_smp_port_state_unlock(port);
- return num & port_num_mask;
+ ASSERT(prt->drv_ptr && prt->lock);
+ if (!prt->drv_ptr->lock) {
+ erts_mtx_unlock(prt->lock);
+ erts_mtx_destroy(prt->lock);
+ }
+#endif
+ erts_port_task_fini_sched(&prt->sched);
}
+#endif
-/*
- * erts_test_next_port() is only used for testing.
- */
-Sint
-erts_test_next_port(int set, Uint next)
+static void insert_port_struct(void *vprt, Eterm data)
+{
+ Port *prt = (Port *) vprt;
+ Eterm id = make_internal_port(data);
+#if ERTS_PORT_INIT_INSTR_NEED_ID
+ /*
+ * This cannot be done earlier in the instrumented
+ * case since we don't now 'id' until now.
+ */
+ port_init_instr(prt, id);
+#endif
+ prt->common.id = id;
+ erts_atomic32_init_relb(&prt->state, ERTS_PORT_SFLG_INITIALIZING);
+}
+
+#define ERTS_CREATE_PORT_FLAG_PARALLELISM (1 << 0)
+
+static Port *create_port(char *name,
+ erts_driver_t *driver,
+ erts_mtx_t *driver_lock,
+ int create_flags,
+ Eterm pid,
+ int *enop)
{
- Uint i, num;
- Sint res = -1;
+ ErtsPortTaskBusyPortQ *busy_port_queue;
+ Port *prt;
+ char *p;
+ size_t port_size, busy_port_queue_size, size;
+ erts_aint32_t state = ERTS_PORT_SFLG_CONNECTED;
+ erts_aint32_t x_pts_flgs = 0;
+#ifdef DEBUG
+ /* Make sure the debug flags survives until port is freed */
+ state |= ERTS_PORT_SFLG_PORT_DEBUG;
+#endif
- erts_smp_spin_lock(&get_free_port_lck);
- if (set) {
- last_port_num = (next - 1) & port_num_mask;
+#ifdef ERTS_SMP
+ if (!driver_lock) {
+ /* Align size for mutex following port struct */
+ port_size = size = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(Port));
+ size += sizeof(erts_mtx_t);
}
- num = last_port_num + 1;
+ else
+#endif
+ port_size = size = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(Port));
- for (i=0; i < erts_max_ports && res<0; ++i, ++num) {
-
- Port* port = &erts_port[num & erts_port_tab_index_mask];
+ busy_port_queue_size
+ = ((driver->flags & ERL_DRV_FLAG_NO_BUSY_MSGQ)
+ ? 0
+ : ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErtsPortTaskBusyPortQ)));
+ size += busy_port_queue_size;
- erts_smp_port_state_lock(port);
+ size += sys_strlen(name) + 1;
- if (port->status & ERTS_PORT_SFLG_FREE) {
- last_port_num = num - 1;
- res = num & port_num_mask;
- }
- erts_smp_port_state_unlock(port);
+ p = erts_alloc_fnf(ERTS_ALC_T_PORT, size);
+ if (!p) {
+ if (enop)
+ *enop = ENOMEM;
+ return NULL;
}
- erts_smp_spin_unlock(&get_free_port_lck);
- return res;
-}
+ prt = (Port *) p;
+ p += port_size;
-static void port_cleanup(Port *prt);
+ if (!busy_port_queue_size)
+ busy_port_queue = NULL;
+ else {
+ busy_port_queue = (ErtsPortTaskBusyPortQ *) p;
+ p += busy_port_queue_size;
+ }
#ifdef ERTS_SMP
-
-static void
-sched_port_cleanup(void *vprt)
-{
- Port *prt = (Port *) vprt;
- erts_smp_mtx_lock(prt->lock);
- port_cleanup(prt);
-}
-
+ if (driver_lock) {
+ prt->lock = driver_lock;
+ erts_mtx_lock(driver_lock);
+ }
+ else {
+ prt->lock = (erts_mtx_t *) p;
+ p += sizeof(erts_mtx_t);
+ state |= ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK;
+ }
+ erts_smp_atomic_set_nob(&prt->run_queue,
+ (erts_aint_t) erts_get_runq_current(NULL));
+ prt->xports = NULL;
+#else
+ erts_atomic32_init_nob(&prt->refc, 1);
+ prt->cleanup = 0;
#endif
+
+ erts_port_task_pre_init_sched(&prt->sched, busy_port_queue);
-void
-erts_port_cleanup(Port *prt)
-{
+ prt->name = p;
+ sys_strcpy(p, name);
+ prt->drv_ptr = driver;
+ ERTS_P_LINKS(prt) = NULL;
+ ERTS_P_MONITORS(prt) = NULL;
+ prt->linebuf = NULL;
+ prt->bp = NULL;
+ prt->suspended = NULL;
+ prt->data = am_undefined;
+ prt->port_data_lock = NULL;
+ prt->control_flags = 0;
+ prt->bytes_in = 0;
+ prt->bytes_out = 0;
+ prt->dist_entry = NULL;
+ ERTS_PORT_INIT_CONNECTED(prt, pid);
+ prt->common.u.alive.reg = NULL;
#ifdef ERTS_SMP
- if (erts_smp_mtx_trylock(prt->lock) == EBUSY)
- erts_schedule_misc_op(sched_port_cleanup, (void *) prt);
- else
+ prt->common.u.alive.ptimer = NULL;
+#else
+ sys_memset(&prt->common.u.alive.tm, 0, sizeof(ErlTimer));
#endif
- port_cleanup(prt);
-}
+ erts_port_task_handle_init(&prt->timeout_task);
+ prt->psd = NULL;
+ prt->drv_data = (SWord) 0;
+ prt->os_pid = -1;
-void
-port_cleanup(Port *prt)
-{
+ /* Set default tracing */
+ erts_get_default_tracing(&ERTS_TRACE_FLAGS(prt), &ERTS_TRACER_PROC(prt));
+
+ ASSERT(((char *) prt) == ((char *) &prt->common));
+
+#if !ERTS_PORT_INIT_INSTR_NEED_ID
+ /*
+ * When 'id' isn't needed (the normal case), it is better to
+ * do the initialization here avoiding unnecessary contention
+ * on table...
+ */
+ port_init_instr(prt);
+#endif
+
+ if (!erts_ptab_new_element(&erts_port,
+ &prt->common,
+ (void *) prt,
+ insert_port_struct)) {
+
+#if !ERTS_PORT_INIT_INSTR_NEED_ID
+ port_init_instr_abort(prt);
+#endif
#ifdef ERTS_SMP
- Uint32 port_specific;
- erts_smp_mtx_t *mtx;
+ if (driver_lock)
+ erts_mtx_unlock(driver_lock);
#endif
- erts_driver_t *driver;
+ if (enop)
+ *enop = 0;
+ return NULL;
+ }
- erts_smp_port_state_lock(prt);
+ ASSERT(prt == (Port *) (erts_ptab_pix2intptr_nob(
+ &erts_port,
+ internal_port_index(prt->common.id))));
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- driver = prt->drv_ptr;
- prt->drv_ptr = NULL;
- ASSERT(driver);
+ initq(prt);
-#ifdef ERTS_SMP
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- ASSERT(prt->status & ERTS_PORT_SFLG_FREE_SCHEDULED);
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&prt->refc) == 0);
+ if (erts_port_schedule_all_ops)
+ x_pts_flgs |= ERTS_PTS_FLG_FORCE_SCHED;
- port_specific = (prt->status & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK);
+ if (create_flags & ERTS_CREATE_PORT_FLAG_PARALLELISM)
+ x_pts_flgs |= ERTS_PTS_FLG_PARALLELISM;
- mtx = prt->lock;
- ASSERT(mtx);
+ if (x_pts_flgs)
+ erts_smp_atomic32_read_bor_nob(&prt->sched.flags, x_pts_flgs);
- prt->lock = NULL;
+ erts_atomic32_set_relb(&prt->state, state);
+ return prt;
+}
- ASSERT(prt->status & ERTS_PORT_SFLG_PORT_DEBUG);
- ASSERT(!(prt->status & ERTS_PORT_SFLG_FREE));
- prt->status = ERTS_PORT_SFLG_FREE;
+#ifndef ERTS_SMP
+void
+erts_port_cleanup(Port *prt)
+{
+ if (prt->drv_ptr && prt->drv_ptr->handle)
+ erts_ddll_dereference_driver(prt->drv_ptr->handle);
+ prt->drv_ptr = NULL;
+ erts_port_dec_refc(prt);
+}
+#endif
- erts_smp_port_state_unlock(prt);
- erts_smp_mtx_unlock(mtx);
+void
+erts_port_free(Port *prt)
+{
+#if defined(ERTS_SMP) || defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK)
+ erts_aint32_t state = erts_atomic32_read_nob(&prt->state);
+#endif
+ ERTS_LC_ASSERT(state & (ERTS_PORT_SFLG_INITIALIZING
+ | ERTS_PORT_SFLG_FREE));
+ ASSERT(state & ERTS_PORT_SFLG_PORT_DEBUG);
- if (port_specific) {
- erts_smp_mtx_destroy(mtx);
- erts_free(ERTS_ALC_T_PORT_LOCK, mtx);
- }
+#ifdef ERTS_SMP
+ ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->common.refc) == 0);
+#else
+ ERTS_LC_ASSERT(erts_atomic32_read_nob(&prt->refc) == 0);
#endif
- if (driver->handle)
- erts_ddll_dereference_driver(driver->handle);
-}
+ erts_port_task_fini_sched(&prt->sched);
+#ifdef ERTS_SMP
+ ASSERT(prt->lock);
+ if (state & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK)
+ erts_mtx_destroy(prt->lock);
+
+ /*
+ * We cannot dereference a driver using driver
+ * locking until here in smp case. Otherwise,
+ * the driver lock may still be in use by others.
+ *
+ * In the non-smp case we cannot do it here since
+ * this function may be called by non-scheduler
+ * threads. This is done in erts_port_cleanup()
+ * in the non-smp case.
+ */
+ if (prt->drv_ptr->handle)
+ erts_ddll_dereference_driver(prt->drv_ptr->handle);
+#endif
+ erts_free(ERTS_ALC_T_PORT, prt);
+}
/*
** Initialize v_start to point to the small fixed vector.
@@ -416,94 +518,21 @@ static void stopq(Port* prt)
if (prt->port_data_lock) {
driver_pdl_unlock(prt->port_data_lock);
driver_pdl_dec_refc(prt->port_data_lock);
- prt->port_data_lock = NULL;
- }
-}
-
-
-
-static void
-setup_port(Port* prt, Eterm pid, erts_driver_t *driver,
- ErlDrvData drv_data, char *name, Uint32 xstatus)
-{
- ErtsRunQueue *runq = erts_get_runq_current(NULL);
- char *new_name, *old_name;
-#ifdef DEBUG
- /* Make sure the debug flags survives until port is freed */
- xstatus |= ERTS_PORT_SFLG_PORT_DEBUG;
-#endif
- ASSERT(runq);
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
-
-
- new_name = (char*) erts_alloc(ERTS_ALC_T_PORT_NAME, sys_strlen(name)+1);
- sys_strcpy(new_name, name);
- erts_smp_runq_lock(runq);
- erts_smp_port_state_lock(prt);
- prt->os_pid = -1;
- prt->status = ERTS_PORT_SFLG_CONNECTED | xstatus;
- prt->snapshot = erts_smp_atomic32_read_nob(&erts_ports_snapshot);
- old_name = prt->name;
- prt->name = new_name;
-#ifdef ERTS_SMP
- erts_smp_atomic_set_nob(&prt->run_queue, (erts_aint_t) runq);
-#endif
- ASSERT(!prt->drv_ptr);
- prt->drv_ptr = driver;
- erts_smp_port_state_unlock(prt);
- erts_smp_runq_unlock(runq);
-#ifdef ERTS_SMP
- ASSERT(!prt->xports);
-#endif
- if (old_name) {
- erts_free(ERTS_ALC_T_PORT_NAME, (void *) old_name);
}
-
- prt->control_flags = 0;
- prt->connected = pid;
- prt->drv_data = (SWord) drv_data;
- prt->bytes_in = 0;
- prt->bytes_out = 0;
- prt->dist_entry = NULL;
- prt->reg = NULL;
-#ifdef ERTS_SMP
- prt->ptimer = NULL;
-#else
- sys_memset(&prt->tm, 0, sizeof(ErlTimer));
-#endif
- erts_port_task_handle_init(&prt->timeout_task);
- prt->suspended = NULL;
- sys_strcpy(prt->name, name);
- prt->nlinks = NULL;
- prt->monitors = NULL;
- prt->linebuf = NULL;
- prt->bp = NULL;
- prt->data = am_undefined;
- /* Set default tracing */
- erts_get_default_tracing(&(prt->trace_flags), &(prt->tracer_proc));
-
- prt->psd = NULL;
-
- initq(prt);
}
-void
-erts_wake_process_later(Port *prt, Process *process)
+int
+erts_save_suspend_process_on_port(Port *prt, Process *process)
{
- ErtsProcList** p;
- ErtsProcList* new_p;
-
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
-
- if (prt->status & ERTS_PORT_SFLGS_DEAD)
- return;
-
- for (p = &(prt->suspended); *p != NULL; p = &((*p)->next))
- /* Empty loop body */;
-
- new_p = erts_proclist_create(process);
- new_p->next = NULL;
- *p = new_p;
+ int saved;
+ erts_aint32_t flags;
+ erts_port_task_sched_lock(&prt->sched);
+ flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ saved = (flags & ERTS_PTS_FLGS_BUSY) && !(flags & ERTS_PTS_FLG_EXIT);
+ if (saved)
+ erts_proclist_store_last(&prt->suspended, erts_proclist_create(process));
+ erts_port_task_sched_unlock(&prt->sched);
+ return saved;
}
/*
@@ -515,47 +544,44 @@ erts_wake_process_later(Port *prt, Process *process)
(*error_number_ptr must contain either BADARG or SYSTEM_LIMIT).
The driver start function must obey the same conventions.
*/
-int
+Port *
erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
Eterm pid, /* Current process. */
char* name, /* Driver name. */
SysDriverOpts* opts, /* Options. */
- int *error_number_ptr) /* errno in case -2 is returned */
+ int *error_type_ptr, /* error type */
+ int *error_number_ptr) /* errno in case of error type -2 */
{
- int port_num;
- int port_ix;
+
+#undef ERTS_OPEN_DRIVER_RET
+#define ERTS_OPEN_DRIVER_RET(Prt, EType, ENo) \
+ do { \
+ if (error_type_ptr) \
+ *error_type_ptr = (EType); \
+ if (error_number_ptr) \
+ *error_number_ptr = (ENo); \
+ return (Prt); \
+ } while (0)
+
ErlDrvData drv_data = 0;
- Uint32 xstatus = 0;
Port *port;
int fpe_was_unmasked;
-
- if (error_number_ptr)
- *error_number_ptr = 0;
+ int error_type, error_number;
+ int port_errno = 0;
+ erts_mtx_t *driver_lock = NULL;
+ int cprt_flgs = 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
- if ((port_num = get_free_port()) < 0) {
- if (error_number_ptr) {
- *error_number_ptr = SYSTEM_LIMIT;
- }
- return -3;
- }
-
- port_ix = port_num & erts_port_tab_index_mask;
- port = &erts_port[port_ix];
- port->id = make_internal_port(port_num);
-
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
if (!driver) {
for (driver = driver_list; driver; driver = driver->next) {
if (sys_strcmp(driver->name, name) == 0)
break;
}
if (!driver) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
- if (error_number_ptr)
- *error_number_ptr = BADARG;
- return -3;
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+ ERTS_OPEN_DRIVER_RET(NULL, -3, BADARG);
}
}
if (driver == &spawn_driver) {
@@ -599,61 +625,49 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
}
if (driver == NULL || (driver != &spawn_driver && opts->exit_status)) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
- if (error_number_ptr) {
- *error_number_ptr = BADARG;
- }
- /* Need to mark the port as free again */
- erts_smp_port_state_lock(port);
- port->status = ERTS_PORT_SFLG_FREE;
-#ifdef ERTS_SMP
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 2);
- erts_smp_atomic_set_nob(&port->refc, 0);
-#endif
- erts_smp_port_state_unlock(port);
- return -3;
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+ ERTS_OPEN_DRIVER_RET(NULL, -3, BADARG);
}
- /*
- * We'll set up the port before calling the start function,
- * to allow message sending and setting timers in the start function.
- */
-
#ifdef ERTS_SMP
- ASSERT(!port->lock);
- port->lock = driver->lock;
- if (!port->lock) {
- port->lock = erts_alloc(ERTS_ALC_T_PORT_LOCK,
- sizeof(erts_smp_mtx_t));
- erts_smp_mtx_init_x(port->lock,
-#ifdef ERTS_ENABLE_LOCK_COUNT
- (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) ? "port_lock" : NULL,
-#else
- "port_lock",
-#endif
- port->id);
- xstatus |= ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK;
- }
+ driver_lock = driver->lock;
#endif
if (driver->handle != NULL) {
erts_ddll_increment_port_count(driver->handle);
erts_ddll_reference_driver(driver->handle);
}
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
-#ifdef ERTS_SMP
- erts_smp_mtx_lock(port->lock);
-#endif
+ /*
+ * We'll set up the port before calling the start function,
+ * to allow message sending and setting timers in the start function.
+ */
- setup_port(port, pid, driver, drv_data, name, xstatus);
+ if (opts->parallelism)
+ cprt_flgs |= ERTS_CREATE_PORT_FLAG_PARALLELISM;
+
+ port = create_port(name, driver, driver_lock, cprt_flgs, pid, &port_errno);
+ if (!port) {
+ if (driver->handle) {
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
+ erts_ddll_decrement_port_count(driver->handle);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+ erts_ddll_dereference_driver(driver->handle);
+ }
+ if (port_errno)
+ ERTS_OPEN_DRIVER_RET(NULL, -2, port_errno);
+ else
+ ERTS_OPEN_DRIVER_RET(NULL, -3, SYSTEM_LIMIT);
+ }
if (IS_TRACED_FL(port, F_TRACE_PORTS)) {
trace_port_open(port,
pid,
am_atom_put(port->name, strlen(port->name)));
}
-
+
+ error_number = error_type = 0;
if (driver->start) {
if (IS_TRACED_FL(port, F_TRACE_SCHED_PORTS)) {
trace_sched_ports_where(port, am_in, am_start);
@@ -666,56 +680,63 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
}
#endif
fpe_was_unmasked = erts_block_fpe();
- drv_data = (*driver->start)((ErlDrvPort)(port_ix),
- name, opts);
+ drv_data = (*driver->start)((ErlDrvPort) port, name, opts);
+ if (((SWord) drv_data) == -1)
+ error_type = -1;
+ else if (((SWord) drv_data) == -2) {
+ /*
+ * We need to save errno quickly after the
+ * call to the 'start' callback before
+ * something else modify it.
+ */
+ error_type = -2;
+ error_number = errno;
+ }
+ else if (((SWord) drv_data) == -3) {
+ error_type = -3;
+ error_number = BADARG;
+ }
+
erts_unblock_fpe(fpe_was_unmasked);
port->caller = NIL;
if (IS_TRACED_FL(port, F_TRACE_SCHED_PORTS)) {
trace_sched_ports_where(port, am_out, am_start);
}
- if (error_number_ptr && ((SWord) drv_data) == (SWord) -2)
- *error_number_ptr = errno;
#ifdef ERTS_SMP
if (port->xports)
- erts_smp_xports_unlock(port);
+ erts_port_handle_xports(port);
ASSERT(!port->xports);
#endif
}
- if (((SWord)drv_data) == -1 ||
- ((SWord)drv_data) == -2 ||
- ((SWord)drv_data) == -3) {
- int res = (int) ((SWord) drv_data);
-
- if (res == -3 && error_number_ptr) {
- *error_number_ptr = BADARG;
- }
-
+ if (error_type) {
/*
* Must clean up the port.
*/
#ifdef ERTS_SMP
- erts_cancel_smp_ptimer(port->ptimer);
+ erts_cancel_smp_ptimer(port->common.u.alive.ptimer);
#else
- erts_cancel_timer(&(port->tm));
+ erts_cancel_timer(&(port->common.u.alive.tm));
#endif
stopq(port);
- kill_port(port);
if (port->linebuf != NULL) {
erts_free(ERTS_ALC_T_LINEBUF,
(void *) port->linebuf);
port->linebuf = NULL;
}
if (driver->handle != NULL) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(driver->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
}
+ kill_port(port);
erts_port_release(port);
- return res;
+ ERTS_OPEN_DRIVER_RET(NULL, error_type, error_number);
}
- port->drv_data = (SWord) drv_data;
- return port_ix;
+ port->drv_data = (UWord) drv_data;
+ ERTS_OPEN_DRIVER_RET(port, 0, 0);
+
+#undef ERTS_OPEN_DRIVER_RET
}
#ifdef ERTS_SMP
@@ -740,102 +761,122 @@ driver_create_port(ErlDrvPort creator_port_ix, /* Creating port */
char* name, /* Driver name */
ErlDrvData drv_data) /* Driver data */
{
+ int cprt_flgs = 0;
Port *creator_port;
Port* port;
erts_driver_t *driver;
Process *rp;
- int port_num;
- Eterm port_id;
- Uint32 xstatus = 0;
+ erts_mtx_t *driver_lock = NULL;
ERTS_SMP_CHK_NO_PROC_LOCKS;
- creator_port = erts_drvport2port(creator_port_ix);
+ /* Need to be called from a scheduler thread */
+ if (!erts_get_scheduler_id())
+ return ERTS_INVALID_ERL_DRV_PORT;
+
+ creator_port = erts_drvport2port(creator_port_ix, NULL);
if (!creator_port)
- return (ErlDrvTermData) -1;
+ return ERTS_INVALID_ERL_DRV_PORT;
+
+ rp = erts_proc_lookup(pid);
+ if (!rp)
+ return ERTS_INVALID_ERL_DRV_PORT;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(creator_port));
driver = creator_port->drv_ptr;
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
if (!erts_ddll_driver_ok(driver->handle)) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
- return (ErlDrvTermData) -1;
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+ return ERTS_INVALID_ERL_DRV_PORT;
}
- rp = erts_pid2proc(NULL, 0, pid, ERTS_PROC_LOCK_LINK);
- if (!rp) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
- return (ErlDrvTermData) -1; /* pid does not exist */
+ if (driver->handle != NULL) {
+ erts_ddll_increment_port_count(driver->handle);
+ erts_ddll_reference_referenced_driver(driver->handle);
+ }
+
+#ifdef ERTS_SMP
+ driver_lock = driver->lock;
+#endif
+
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+
+ /* Inherit parallelism flag from parent */
+ if (ERTS_PTS_FLG_PARALLELISM &
+ erts_smp_atomic32_read_nob(&creator_port->sched.flags))
+ cprt_flgs |= ERTS_CREATE_PORT_FLAG_PARALLELISM;
+ port = create_port(name, driver, driver_lock, cprt_flgs, pid, NULL);
+ if (!port) {
+ if (driver->handle) {
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
+ erts_ddll_decrement_port_count(driver->handle);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+ erts_ddll_dereference_driver(driver->handle);
+ }
+ return ERTS_INVALID_ERL_DRV_PORT;
}
- if ((port_num = get_free_port()) < 0) {
- errno = SYSTEM_LIMIT;
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port));
+
+ erts_smp_proc_lock(rp, ERTS_PROC_LOCK_LINK);
+ if (ERTS_PROC_IS_EXITING(rp)) {
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
- return (ErlDrvTermData) -1;
+ if (driver->handle) {
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
+ erts_ddll_decrement_port_count(driver->handle);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
+ }
+ kill_port(port);
+ erts_port_release(port);
+ return ERTS_INVALID_ERL_DRV_PORT;
}
- port_id = make_internal_port(port_num);
- port = &erts_port[port_num & erts_port_tab_index_mask];
+ erts_add_link(&ERTS_P_LINKS(port), LINK_PID, pid);
+ erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, port->common.id);
+ erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
#ifdef ERTS_SMP
- ASSERT(!port->lock);
- port->lock = driver->lock;
- if (!port->lock) {
+ if (!driver_lock) {
ErtsXPortsList *xplp = xports_list_alloc();
xplp->port = port;
xplp->next = creator_port->xports;
creator_port->xports = xplp;
- port->lock = erts_alloc(ERTS_ALC_T_PORT_LOCK,
- sizeof(erts_smp_mtx_t));
- erts_smp_mtx_init_locked_x(port->lock,
-#ifdef ERTS_ENABLE_LOCK_COUNT
- (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) ? "port_lock" : NULL,
-#else
- "port_lock",
-#endif
- port_id);
- xstatus |= ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK;
}
-
#endif
- if (driver->handle != NULL) {
- erts_ddll_increment_port_count(driver->handle);
- erts_ddll_reference_referenced_driver(driver->handle);
- }
- erts_smp_mtx_unlock(&erts_driver_list_lock);
-
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port));
-
- setup_port(port, pid, driver, drv_data, name, xstatus);
- port->id = port_id;
+ port->drv_data = (UWord) drv_data;
- erts_add_link(&(port->nlinks), LINK_PID, pid);
- erts_add_link(&(rp->nlinks), LINK_PID, port_id);
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
- return port_num & erts_port_tab_index_mask;
+ return (ErlDrvPort) port;
}
#ifdef ERTS_SMP
-void
-erts_smp_xports_unlock(Port *prt)
+int erts_port_handle_xports(Port *prt)
{
+ int reds = 0;
ErtsXPortsList *xplp;
ASSERT(prt);
xplp = prt->xports;
ASSERT(xplp);
while (xplp) {
+ Port *rprt = xplp->port;
ErtsXPortsList *free_xplp;
- if (xplp->port->xports)
- erts_smp_xports_unlock(xplp->port);
- erts_port_release(xplp->port);
+ erts_aint32_t state;
+ if (rprt->xports)
+ reds += erts_port_handle_xports(rprt);
+ state = erts_atomic32_read_nob(&rprt->state);
+ if ((state & ERTS_PORT_SFLG_CLOSING) && erts_is_port_ioq_empty(rprt)) {
+ terminate_port(rprt);
+ reds += ERTS_PORT_REDS_TERMINATE;
+ }
+ erts_port_release(rprt);
free_xplp = xplp;
xplp = xplp->next;
xports_list_free(free_xplp);
+ reds++;
}
prt->xports = NULL;
+ return reds;
}
#endif
@@ -870,8 +911,8 @@ io_list_to_vec(Eterm obj, /* io-list */
DECLARE_ESTACK(s);
Eterm* objp;
char *buf = cbin->orig_bytes;
- ErlDrvSizeT len = cbin->orig_size;
- ErlDrvSizeT csize = 0;
+ Uint len = cbin->orig_size;
+ Uint csize = 0;
int vlen = 0;
char* cptr = buf;
@@ -986,7 +1027,7 @@ io_list_to_vec(Eterm obj, /* io-list */
#define IO_LIST_VEC_COUNT(obj) \
do { \
- ErlDrvSizeT _size = binary_size(obj); \
+ Uint _size = binary_size(obj); \
Eterm _real; \
ERTS_DECLARE_DUMMY(Uint _offset); \
int _bitoffs; \
@@ -1037,8 +1078,9 @@ do { \
*/
static int
-io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize,
- Uint* pvsize, Uint* pcsize, Uint* total_size)
+io_list_vec_len(Eterm obj, int* vsize, Uint* csize,
+ Uint* pvsize, Uint* pcsize,
+ ErlDrvSizeT* total_size)
{
DECLARE_ESTACK(s);
Eterm* objp;
@@ -1049,7 +1091,7 @@ io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize,
Uint p_v_size = 0;
Uint p_c_size = 0;
Uint p_in_clist = 0;
- Uint total;
+ Uint total; /* Uint due to halfword emulator */
goto L_jump_start; /* avoid a push */
@@ -1109,7 +1151,7 @@ io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize,
if (total < c_size) {
goto L_overflow_error;
}
- *total_size = total;
+ *total_size = (ErlDrvSizeT) total;
DESTROY_ESTACK(s);
*vsize = v_size;
@@ -1124,56 +1166,724 @@ io_list_vec_len(Eterm obj, Uint* vsize, Uint* csize,
return 1;
}
-/* write data to a port */
-int erts_write_to_port(Eterm caller_id, Port *p, Eterm list)
-{
- char *buf;
- erts_driver_t *drv = p->drv_ptr;
- Uint size;
+typedef enum {
+ ERTS_TRY_IMM_DRV_CALL_OK,
+ ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK,
+ ERTS_TRY_IMM_DRV_CALL_INVALID_PORT,
+ ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS
+} ErtsTryImmDrvCallResult;
+
+typedef struct {
+ Process *c_p; /* Currently executing process (unlocked) */
+ Port *port; /* Port to operate on */
+ Eterm port_op; /* port operation as an atom */
+ erts_aint32_t state; /* in: invalid state; out: read state (if read) */
+ erts_aint32_t sched_flags; /* in: invalid flags; out: read flags (if read) */
+ int async; /* Asynchronous operation */
+ int pre_chk_sched_flags; /* Check sched flags before lock? */
int fpe_was_unmasked;
-
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p) || ERTS_IS_CRASH_DUMPING);
+} ErtsTryImmDrvCallState;
+
+#define ERTS_INIT_TRY_IMM_DRV_CALL_STATE(C_P, PRT, SFLGS, PTS_FLGS, A, PRT_OP) \
+ {(C_P), (PRT), (PRT_OP), (SFLGS), (PTS_FLGS), (A), 1, 0}
+
+/*
+ * Try doing an immediate driver callback call from a process. If
+ * this fail, the operation should be scheduled in the normal case...
+ *
+ */
+static ERTS_INLINE ErtsTryImmDrvCallResult
+try_imm_drv_call(ErtsTryImmDrvCallState *sp)
+{
+ ErtsTryImmDrvCallResult res;
+ erts_aint32_t invalid_state, invalid_sched_flags;
+ Port *prt = sp->port;
+ Process *c_p = sp->c_p;
+
+ ASSERT(is_atom(sp->port_op));
+
+ invalid_sched_flags = ERTS_PTS_FLGS_FORCE_SCHEDULE_OP;
+ invalid_sched_flags |= sp->sched_flags;
+ if (sp->async)
+ invalid_sched_flags |= ERTS_PTS_FLG_PARALLELISM;
+
+ if (sp->pre_chk_sched_flags) {
+ sp->sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ if (sp->sched_flags & invalid_sched_flags)
+ return ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS;
+ }
+
+ if (erts_smp_port_trylock(prt) == EBUSY)
+ return ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK;
+
+ invalid_state = sp->state;
+ sp->state = erts_atomic32_read_nob(&prt->state);
+ if (sp->state & invalid_state) {
+ res = ERTS_TRY_IMM_DRV_CALL_INVALID_PORT;
+ goto locked_fail;
+ }
+
+ sp->sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ if (sp->sched_flags & invalid_sched_flags) {
+ res = ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS;
+ goto locked_fail;
+ }
+
+ if (c_p) {
+ if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS))
+ trace_virtual_sched(c_p, am_out);
+ if (erts_system_profile_flags.runnable_procs
+ && erts_system_profile_flags.exclusive)
+ profile_runnable_proc(c_p, am_inactive);
+
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
+ }
+
ERTS_SMP_CHK_NO_PROC_LOCKS;
- p->caller = caller_id;
- if (drv->outputv != NULL) {
- Uint vsize;
- Uint csize;
- Uint pvsize;
- Uint pcsize;
- ErlDrvSizeT blimit;
+ if (IS_TRACED_FL(prt, F_TRACE_SCHED_PORTS))
+ trace_sched_ports_where(prt, am_in, sp->port_op);
+ if (erts_system_profile_flags.runnable_ports
+ && !erts_port_is_scheduled(prt))
+ profile_runnable_port(prt, am_active);
+
+ sp->fpe_was_unmasked = erts_block_fpe();
+
+ return ERTS_TRY_IMM_DRV_CALL_OK;
+
+locked_fail:
+ erts_port_release(prt);
+ return res;
+}
+
+static ERTS_INLINE void
+finalize_imm_drv_call(ErtsTryImmDrvCallState *sp)
+{
+ Port *prt = sp->port;
+ Process *c_p = sp->c_p;
+
+ erts_port_driver_callback_epilogue(prt, NULL);
+
+ erts_unblock_fpe(sp->fpe_was_unmasked);
+
+ if (IS_TRACED_FL(prt, F_TRACE_SCHED_PORTS))
+ trace_sched_ports_where(prt, am_out, sp->port_op);
+ if (erts_system_profile_flags.runnable_ports
+ && !erts_port_is_scheduled(prt))
+ profile_runnable_port(prt, am_inactive);
+
+ erts_port_release(prt);
+
+ if (c_p) {
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
+
+ if (IS_TRACED_FL(c_p, F_TRACE_SCHED_PROCS))
+ trace_virtual_sched(c_p, am_in);
+ if (erts_system_profile_flags.runnable_procs
+ && erts_system_profile_flags.exclusive)
+ profile_runnable_proc(c_p, am_active);
+ }
+}
+
+/*
+ * force_imm_drv_call()/finalize_force_imm_drv_call() should *only*
+ * be used while crash dumping...
+ */
+static ErtsTryImmDrvCallResult
+force_imm_drv_call(ErtsTryImmDrvCallState *sp)
+{
+ erts_aint32_t invalid_state;
+ Port *prt = sp->port;
+
+ ASSERT(ERTS_IS_CRASH_DUMPING)
+ ASSERT(is_atom(sp->port_op));
+
+ invalid_state = sp->state;
+ sp->state = erts_atomic32_read_nob(&prt->state);
+ if (sp->state & invalid_state)
+ return ERTS_TRY_IMM_DRV_CALL_INVALID_PORT;
+
+ sp->fpe_was_unmasked = erts_block_fpe();
+
+ return ERTS_TRY_IMM_DRV_CALL_OK;
+}
+
+static void
+finalize_force_imm_drv_call(ErtsTryImmDrvCallState *sp)
+{
+ erts_unblock_fpe(sp->fpe_was_unmasked);
+}
+
+#define ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE (REF_THING_SIZE + 3)
+
+static ERTS_INLINE void
+queue_port_sched_op_reply(Process *rp,
+ ErtsProcLocks *rp_locksp,
+ Eterm *hp_start,
+ Eterm *hp,
+ Uint h_size,
+ ErlHeapFragment* bp,
+ Uint32 *ref_num,
+ Eterm msg)
+{
+ Eterm ref = make_internal_ref(hp);
+ write_ref_thing(hp, ref_num[0], ref_num[1], ref_num[2]);
+ hp += REF_THING_SIZE;
+
+ msg = TUPLE2(hp, ref, msg);
+ hp += 3;
+
+ if (!bp) {
+ HRelease(rp, hp_start + h_size, hp);
+ }
+ else {
+ Uint used_h_size = hp - hp_start;
+ ASSERT(h_size >= used_h_size);
+ if (h_size > used_h_size)
+ bp = erts_resize_message_buffer(bp, used_h_size, &msg, 1);
+ }
+
+ erts_queue_message(rp,
+ rp_locksp,
+ bp,
+ msg,
+ NIL
+#ifdef USE_VM_PROBES
+ , NIL
+#endif
+ );
+}
+
+static void
+port_sched_op_reply(Eterm to, Uint32 *ref_num, Eterm msg)
+{
+ Process *rp = erts_proc_lookup_raw(to);
+ if (rp) {
+ ErlOffHeap *ohp;
+ ErlHeapFragment* bp;
+ Eterm msg_copy;
+ Uint hsz, msg_sz;
+ Eterm *hp, *hp_start;
+ ErtsProcLocks rp_locks = 0;
+
+ hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE;
+ if (is_immed(msg))
+ msg_sz = 0;
+ else {
+ msg_sz = size_object(msg);
+ hsz += msg_sz;
+ }
+
+ hp_start = hp = erts_alloc_message_heap(hsz,
+ &bp,
+ &ohp,
+ rp,
+ &rp_locks);
+ if (is_immed(msg))
+ msg_copy = msg;
+ else
+ msg_copy = copy_struct(msg, msg_sz, &hp, ohp);
+
+ queue_port_sched_op_reply(rp,
+ &rp_locks,
+ hp_start,
+ hp,
+ hsz,
+ bp,
+ ref_num,
+ msg_copy);
+
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ }
+}
+
+
+ErtsPortOpResult
+erts_schedule_proc2port_signal(Process *c_p,
+ Port *prt,
+ Eterm caller,
+ Eterm *refp,
+ ErtsProc2PortSigData *sigdp,
+ int task_flags,
+ ErtsProc2PortSigCallback callback)
+{
+ int sched_res;
+ if (!refp) {
+ if (c_p)
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
+ }
+ else {
+ ASSERT(c_p);
+ sigdp->flags |= ERTS_P2P_SIG_DATA_FLG_REPLY;
+ erts_make_ref_in_array(sigdp->ref);
+ *refp = erts_proc_store_ref(c_p, sigdp->ref);
+
+ /*
+ * Caller needs to wait for a message containing
+ * the ref that we just created. No such message
+ * can exist in callers message queue at this time.
+ * We therefore move the save pointer of the
+ * callers message queue to the end of the queue.
+ *
+ * NOTE: It is of vital importance that the caller
+ * immediately do a receive unconditionaly
+ * waiting for the message with the reference;
+ * otherwise, next receive will *not* work
+ * as expected!
+ */
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
+
+ if (ERTS_PROC_PENDING_EXIT(c_p)) {
+ /* need to exit caller instead */
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
+ KILL_CATCHES(c_p);
+ c_p->freason = EXC_EXIT;
+ return ERTS_PORT_OP_CALLER_EXIT;
+ }
+
+ ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p);
+ c_p->msg.save = c_p->msg.last;
+
+ erts_smp_proc_unlock(c_p,
+ (ERTS_PROC_LOCK_MAIN
+ | ERTS_PROC_LOCKS_MSG_RECEIVE));
+ }
+
+
+ sigdp->caller = caller;
+
+ /* Schedule port close call for later execution... */
+ sched_res = erts_port_task_schedule(prt->common.id,
+ NULL,
+ ERTS_PORT_TASK_PROC_SIG,
+ sigdp,
+ callback,
+ task_flags);
+
+ if (c_p)
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
+
+ if (sched_res != 0) {
+ if (refp)
+ *refp = NIL;
+ return ERTS_PORT_OP_DROPPED;
+ }
+ return ERTS_PORT_OP_SCHEDULED;
+}
+
+static ERTS_INLINE void
+send_badsig(Port *prt)
+{
+ ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
+ Process* rp;
+ Eterm connected = ERTS_PORT_GET_CONNECTED(prt);
+
+ ERTS_SMP_CHK_NO_PROC_LOCKS;
+ ERTS_LC_ASSERT(erts_get_scheduler_id());
+
+ ASSERT(is_internal_pid(connected));
+
+ rp = erts_proc_lookup_raw(connected);
+ if (rp) {
+ erts_smp_proc_lock(rp, rp_locks);
+ if (!ERTS_PROC_IS_EXITING(rp))
+ (void) erts_send_exit_signal(NULL,
+ prt->common.id,
+ rp,
+ &rp_locks,
+ am_badsig,
+ NIL,
+ NULL,
+ 0);
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ }
+}
+
+static void
+badsig_received(int bang_op,
+ Port *prt,
+ erts_aint32_t state,
+ int bad_output_value)
+{
+ /*
+ * if (bang_op)
+ * we are part of a "Prt ! Something" operation
+ * else
+ * we are part of a call to a port BIF
+ * behave accordingly...
+ */
+ if (!(state & ERTS_PORT_SFLGS_INVALID_LOOKUP)) {
+ if (bad_output_value) {
+ erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
+ erts_dsprintf(dsbufp, "Bad value on output port '%s'\n", prt->name);
+ erts_send_error_to_logger_nogl(dsbufp);
+ }
+ if (bang_op)
+ send_badsig(prt);
+ }
+}
+
+static int
+port_badsig(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp)
+{
+ if (op == ERTS_PROC2PORT_SIG_EXEC)
+ badsig_received(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP,
+ prt,
+ state,
+ sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BAD_OUTPUT);
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg);
+ return ERTS_PORT_REDS_BADSIG;
+}
+
+
+/*
+ * bad_port_signal() will
+ * - preserve signal order of signals.
+ * - send a 'badsig' exit signal to connected process if 'from' is an
+ * internal pid and the port is alive when the bad signal reaches
+ * it.
+ */
+static ErtsPortOpResult
+bad_port_signal(Process *c_p,
+ int flags,
+ Port *prt,
+ Eterm from,
+ Eterm *refp,
+ Eterm port_op)
+{
+ ErtsProc2PortSigData *sigdp;
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ !refp,
+ port_op);
+
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK:
+ badsig_received(flags & ERTS_PORT_SIG_FLG_BANG_OP,
+ prt,
+ try_call_state.state,
+ flags & ERTS_PORT_SIG_FLG_BAD_OUTPUT);
+ finalize_imm_drv_call(&try_call_state);
+ return ERTS_PORT_OP_BADARG;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS:
+ case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK:
+ /* Schedule badsig() call instead... */
+ break;
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = (flags & ~ERTS_P2P_SIG_TYPE_MASK) | ERTS_P2P_SIG_TYPE_BAD;
+
+ return erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ refp,
+ sigdp,
+ 0,
+ port_badsig);
+}
+
+
+/*
+ * Driver outputv() callback
+ */
+
+static ERTS_INLINE void
+call_driver_outputv(int bang_op,
+ Eterm caller,
+ Eterm from,
+ Port *prt,
+ erts_driver_t *drv,
+ ErlIOVec *evp)
+{
+ /*
+ * if (bang_op)
+ * we are part of a "Prt ! {From, {command, Data}}" operation
+ * else
+ * we are part of a call to port_command/[2,3]
+ * behave accordingly...
+ */
+ if (bang_op && from != ERTS_PORT_GET_CONNECTED(prt))
+ send_badsig(prt);
+ else {
+ ErlDrvSizeT size = evp->size;
+
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)
+ || ERTS_IS_CRASH_DUMPING);
+
+#ifdef USE_VM_PROBES
+ if (DTRACE_ENABLED(driver_outputv)) {
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(caller, prt);
+ DTRACE4(driver_outputv, process_str, port_str, prt->name, size);
+ }
+#endif
+
+ prt->caller = caller;
+ (*drv->outputv)((ErlDrvData) prt->drv_data, evp);
+ prt->caller = NIL;
+
+ prt->bytes_out += size;
+ erts_smp_atomic_add_nob(&erts_bytes_out, size);
+ }
+}
+
+static ERTS_INLINE void
+cleanup_scheduled_outputv(ErlIOVec *ev, ErlDrvBinary *cbinp)
+{
+ int i;
+ /* Need to free all binaries */
+ for (i = 1; i < ev->vsize; i++)
+ if (ev->binv[i])
+ driver_free_binary(ev->binv[i]);
+ if (cbinp)
+ driver_free_binary(cbinp);
+ erts_free(ERTS_ALC_T_DRV_CMD_DATA, ev);
+}
+
+static int
+port_sig_outputv(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp)
+{
+ Eterm reply;
+
+ switch (op) {
+ case ERTS_PROC2PORT_SIG_EXEC:
+ /* Execution of a scheduled outputv() call */
+
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+
+ if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP)
+ reply = am_badarg;
+ else {
+ call_driver_outputv(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP,
+ sigdp->caller,
+ sigdp->u.outputv.from,
+ prt,
+ prt->drv_ptr,
+ sigdp->u.outputv.evp);
+ reply = am_true;
+ }
+ break;
+ case ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND:
+ reply = am_false;
+ break;
+ default:
+ reply = am_badarg;
+ break;
+ }
+
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, reply);
+
+ cleanup_scheduled_outputv(sigdp->u.outputv.evp,
+ sigdp->u.outputv.cbinp);
+
+ return ERTS_PORT_REDS_CMD_OUTPUTV;
+}
+
+/*
+ * Driver output() callback
+ */
+
+static ERTS_INLINE void
+call_driver_output(int bang_op,
+ Eterm caller,
+ Eterm from,
+ Port *prt,
+ erts_driver_t *drv,
+ char *bufp,
+ ErlDrvSizeT size)
+{
+ /*
+ * if (bang_op)
+ * we are part of a "Prt ! {From, {command, Data}}" operation
+ * else
+ * we are part of a call to port_command/[2,3]
+ * behave accordingly...
+ */
+ if (bang_op && from != ERTS_PORT_GET_CONNECTED(prt))
+ send_badsig(prt);
+ else {
+
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)
+ || ERTS_IS_CRASH_DUMPING);
+
+#ifdef USE_VM_PROBES
+ if (DTRACE_ENABLED(driver_output)) {
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(caller, prt);
+ DTRACE4(driver_output, process_str, port_str, prt->name, size);
+ }
+#endif
+
+ prt->caller = caller;
+ (*drv->output)((ErlDrvData) prt->drv_data, bufp, size);
+ prt->caller = NIL;
+
+ prt->bytes_out += size;
+ erts_smp_atomic_add_nob(&erts_bytes_out, size);
+ }
+}
+
+static ERTS_INLINE void
+cleanup_scheduled_output(char *bufp)
+{
+ erts_free(ERTS_ALC_T_DRV_CMD_DATA, bufp);
+}
+
+static int
+port_sig_output(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp)
+{
+ Eterm reply;
+
+ switch (op) {
+ case ERTS_PROC2PORT_SIG_EXEC:
+ /* Execution of a scheduled output() call */
+
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+
+ if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP)
+ reply = am_badarg;
+ else {
+ call_driver_output(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP,
+ sigdp->caller,
+ sigdp->u.output.from,
+ prt,
+ prt->drv_ptr,
+ sigdp->u.output.bufp,
+ sigdp->u.output.size);
+ reply = am_true;
+ }
+ break;
+ case ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND:
+ reply = am_false;
+ break;
+ default:
+ reply = am_badarg;
+ break;
+ }
+
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, reply);
+
+ cleanup_scheduled_output(sigdp->u.output.bufp);
+
+ return ERTS_PORT_REDS_CMD_OUTPUT;
+}
+
+ErtsPortOpResult
+erts_port_output(Process *c_p,
+ int flags,
+ Port *prt,
+ Eterm from,
+ Eterm list,
+ Eterm *refp)
+{
+ ErtsPortOpResult res;
+ ErtsProc2PortSigData *sigdp;
+ erts_driver_t *drv = prt->drv_ptr;
+ size_t size;
+ int try_call;
+ erts_aint32_t sched_flags, busy_flgs, invalid_flags;
+ int task_flags;
+ ErtsProc2PortSigCallback port_sig_callback;
+ ErlDrvBinary *cbin = NULL;
+ ErlIOVec *evp = NULL;
+ char *buf = NULL;
+ int force_immediate_call = (flags & ERTS_PORT_SIG_FLG_FORCE_IMM_CALL);
+
+ ASSERT((flags & ~(ERTS_PORT_SIG_FLG_BANG_OP
+ | ERTS_PORT_SIG_FLG_NOSUSPEND
+ | ERTS_PORT_SIG_FLG_FORCE
+ | ERTS_PORT_SIG_FLG_FORCE_IMM_CALL)) == 0);
+
+ busy_flgs = ((flags & ERTS_PORT_SIG_FLG_FORCE)
+ ? ((erts_aint32_t) 0)
+ : ERTS_PTS_FLGS_BUSY);
+ invalid_flags = busy_flgs;
+ if (!refp)
+ invalid_flags |= ERTS_PTS_FLG_PARALLELISM;
+
+ /*
+ * Assumes caller have checked that port is valid...
+ */
+
+ sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ if (sched_flags & (busy_flgs|ERTS_PTS_FLG_EXIT))
+ return ((sched_flags & ERTS_PTS_FLG_EXIT)
+ ? ERTS_PORT_OP_DROPPED
+ : ERTS_PORT_OP_BUSY);
+
+ try_call = (force_immediate_call /* crash dumping */
+ || !(sched_flags & (invalid_flags
+ | ERTS_PTS_FLGS_FORCE_SCHEDULE_OP)));
+
+#ifdef USE_VM_PROBES
+ if(DTRACE_ENABLED(port_command)) {
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(c_p ? c_p->common.id : ERTS_INVALID_PID, prt);
+ DTRACE4(port_command, process_str, port_str, prt->name, "command");
+ }
+#endif
+
+ if (drv->outputv) {
+ ErlIOVec ev;
SysIOVec iv[SMALL_WRITE_VEC];
ErlDrvBinary* bv[SMALL_WRITE_VEC];
SysIOVec* ivp;
ErlDrvBinary** bvp;
- ErlDrvBinary* cbin;
- ErlIOVec ev;
+ int vsize;
+ Uint csize;
+ Uint pvsize;
+ Uint pcsize;
+ Uint blimit;
+ size_t iov_offset, binv_offset, alloc_size;
- if (io_list_vec_len(list, &vsize, &csize,
- &pvsize, &pcsize, &size)) {
+ if (io_list_vec_len(list, &vsize, &csize, &pvsize, &pcsize, &size))
goto bad_value;
+
+ iov_offset = ERTS_ALC_DATA_ALIGN_SIZE(sizeof(ErlIOVec));
+ binv_offset = iov_offset;
+ binv_offset += ERTS_ALC_DATA_ALIGN_SIZE((vsize+1)*sizeof(SysIOVec));
+ alloc_size = binv_offset;
+ alloc_size += (vsize+1)*sizeof(ErlDrvBinary *);
+
+ if (try_call && vsize < SMALL_WRITE_VEC) {
+ ivp = ev.iov = iv;
+ bvp = ev.binv = bv;
+ evp = &ev;
}
+ else {
+ char *ptr = erts_alloc((try_call
+ ? ERTS_ALC_T_TMP
+ : ERTS_ALC_T_DRV_CMD_DATA), alloc_size);
+
+ evp = (ErlIOVec *) ptr;
+ ivp = evp->iov = (SysIOVec *) (ptr + iov_offset);
+ bvp = evp->binv = (ErlDrvBinary **) (ptr + binv_offset);
+ }
+
/* To pack or not to pack (small binaries) ...? */
- vsize++;
- if (vsize <= SMALL_WRITE_VEC) {
+ if (vsize < SMALL_WRITE_VEC) {
/* Do NOT pack */
blimit = 0;
- } else {
+ }
+ else {
/* Do pack */
vsize = pvsize + 1;
csize = pcsize;
blimit = ERL_SMALL_IO_BIN_LIMIT;
}
/* Use vsize and csize from now on */
- if (vsize <= SMALL_WRITE_VEC) {
- ivp = iv;
- bvp = bv;
- } else {
- ivp = (SysIOVec *) erts_alloc(ERTS_ALC_T_TMP,
- vsize * sizeof(SysIOVec));
- bvp = (ErlDrvBinary**) erts_alloc(ERTS_ALC_T_TMP,
- vsize * sizeof(ErlDrvBinary*));
- }
+
cbin = driver_alloc_binary(csize);
if (!cbin)
erts_alloc_enomem(ERTS_ALC_T_DRV_BINARY, ERTS_SIZEOF_Binary(csize));
@@ -1182,210 +1892,761 @@ int erts_write_to_port(Eterm caller_id, Port *p, Eterm list)
ivp[0].iov_base = NULL;
ivp[0].iov_len = 0;
bvp[0] = NULL;
- ev.vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit);
- if (ev.vsize < 0) {
- if (ivp != iv) {
- erts_free(ERTS_ALC_T_TMP, (void *) ivp);
- }
- if (bvp != bv) {
- erts_free(ERTS_ALC_T_TMP, (void *) bvp);
- }
+ evp->vsize = io_list_to_vec(list, ivp+1, bvp+1, cbin, blimit);
+ if (evp->vsize < 0) {
+ if (evp != &ev)
+ erts_free(try_call ? ERTS_ALC_T_TMP : ERTS_ALC_T_DRV_CMD_DATA,
+ evp);
driver_free_binary(cbin);
goto bad_value;
}
- ev.vsize++;
#if 0
/* This assertion may say something useful, but it can
be falsified during the emulator test suites. */
- ASSERT(ev.vsize == vsize);
-#endif
- ev.size = size; /* total size */
- ev.iov = ivp;
- ev.binv = bvp;
-#ifdef USE_VM_PROBES
- if (DTRACE_ENABLED(driver_outputv)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p)
- DTRACE4(driver_outputv, process_str, port_str, p->name, size);
- }
+ ASSERT(evp->vsize == vsize);
#endif
- fpe_was_unmasked = erts_block_fpe();
- (*drv->outputv)((ErlDrvData)p->drv_data, &ev);
- erts_unblock_fpe(fpe_was_unmasked);
- if (ivp != iv) {
- erts_free(ERTS_ALC_T_TMP, (void *) ivp);
+ evp->vsize++;
+ evp->size = size; /* total size */
+
+ if (!try_call) {
+ int i;
+ /* Need to increase refc on all binaries */
+ for (i = 1; i < evp->vsize; i++)
+ if (bvp[i])
+ driver_binary_inc_refc(bvp[i]);
}
- if (bvp != bv) {
- erts_free(ERTS_ALC_T_TMP, (void *) bvp);
- }
- driver_free_binary(cbin);
- } else {
- int r;
-
- /* Try with an 8KB buffer first (will often be enough I guess). */
- size = 8*1024;
- /* See below why the extra byte is added. */
- buf = erts_alloc(ERTS_ALC_T_TMP, size+1);
- r = io_list_to_buf(list, buf, size);
+ else {
+ int i;
+ ErlIOVec *new_evp;
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ invalid_flags,
+ !refp,
+ am_command);
+
+ try_call_state.pre_chk_sched_flags = 0; /* already checked */
+ if (force_immediate_call)
+ try_call_res = force_imm_drv_call(&try_call_state);
+ else
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK:
+ call_driver_outputv(flags & ERTS_PORT_SIG_FLG_BANG_OP,
+ c_p ? c_p->common.id : ERTS_INVALID_PID,
+ from,
+ prt,
+ drv,
+ evp);
+ if (force_immediate_call)
+ finalize_force_imm_drv_call(&try_call_state);
+ else
+ finalize_imm_drv_call(&try_call_state);
+ /* Fall through... */
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ driver_free_binary(cbin);
+ if (evp != &ev)
+ erts_free(ERTS_ALC_T_TMP, evp);
+ if (try_call_res == ERTS_TRY_IMM_DRV_CALL_OK)
+ return ERTS_PORT_OP_DONE;
+ else
+ return ERTS_PORT_OP_DROPPED;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS:
+ sched_flags = try_call_state.sched_flags;
+ case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK:
+ /* Schedule outputv() call instead... */
+ break;
+ }
-#ifdef USE_VM_PROBES
- if(DTRACE_ENABLED(port_command)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p)
- DTRACE4(port_command, process_str, port_str, p->name, "command");
- }
+ /* Need to increase refc on all binaries */
+ for (i = 1; i < evp->vsize; i++)
+ if (bvp[i])
+ driver_binary_inc_refc(bvp[i]);
+
+ new_evp = erts_alloc(ERTS_ALC_T_DRV_CMD_DATA, alloc_size);
+
+ if (evp != &ev) {
+ sys_memcpy((void *) new_evp, (void *) evp, alloc_size);
+ new_evp->iov = (SysIOVec *) (((char *) new_evp)
+ + iov_offset);
+ bvp = new_evp->binv = (ErlDrvBinary **) (((char *) new_evp)
+ + binv_offset);
+
+#ifdef DEBUG
+ ASSERT(new_evp->vsize == evp->vsize);
+ ASSERT(new_evp->size == evp->size);
+ for (i = 0; i < evp->vsize; i++) {
+ ASSERT(new_evp->iov[i].iov_len == evp->iov[i].iov_len);
+ ASSERT(new_evp->iov[i].iov_base == evp->iov[i].iov_base);
+ ASSERT(new_evp->binv[i] == evp->binv[i]);
+ }
#endif
- if (r >= 0) {
- size -= r;
-#ifdef USE_VM_PROBES
- if (DTRACE_ENABLED(driver_output)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p)
- DTRACE4(driver_output, process_str, port_str, p->name, size);
- }
+ erts_free(ERTS_ALC_T_TMP, evp);
+ }
+ else { /* from stack allocated structure; offsets may differ */
+
+ sys_memcpy((void *) new_evp, (void *) evp, sizeof(ErlIOVec));
+ new_evp->iov = (SysIOVec *) (((char *) new_evp)
+ + iov_offset);
+ sys_memcpy((void *) new_evp->iov,
+ (void *) evp->iov,
+ evp->vsize * sizeof(SysIOVec));
+ new_evp->binv = (ErlDrvBinary **) (((char *) new_evp)
+ + binv_offset);
+ sys_memcpy((void *) new_evp->binv,
+ (void *) evp->binv,
+ evp->vsize * sizeof(ErlDrvBinary *));
+
+#ifdef DEBUG
+ ASSERT(new_evp->vsize == evp->vsize);
+ ASSERT(new_evp->size == evp->size);
+ for (i = 0; i < evp->vsize; i++) {
+ ASSERT(new_evp->iov[i].iov_len == evp->iov[i].iov_len);
+ ASSERT(new_evp->iov[i].iov_base == evp->iov[i].iov_base);
+ ASSERT(new_evp->binv[i] == evp->binv[i]);
+ }
#endif
- fpe_was_unmasked = erts_block_fpe();
- (*drv->output)((ErlDrvData)p->drv_data, buf, size);
- erts_unblock_fpe(fpe_was_unmasked);
- erts_free(ERTS_ALC_T_TMP, buf);
+
+ }
+
+ evp = new_evp;
}
- else if (r == -2) {
- erts_free(ERTS_ALC_T_TMP, buf);
- goto bad_value;
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUTV;
+ sigdp->u.outputv.from = from;
+ sigdp->u.outputv.evp = evp;
+ sigdp->u.outputv.cbinp = cbin;
+ port_sig_callback = port_sig_outputv;
+ }
+ else {
+ ErlDrvSizeT r;
+
+ /*
+ * Apperently there exist code that write 1 byte to
+ * much in buffer. Where it resides I don't know, but
+ * we can live with one byte extra allocated...
+ */
+
+ if (!try_call) {
+ if (erts_iolist_size(list, &size))
+ goto bad_value;
+
+ buf = erts_alloc(ERTS_ALC_T_DRV_CMD_DATA, size + 1);
+
+ r = erts_iolist_to_buf(list, buf, size);
+ ASSERT(ERTS_IOLIST_TO_BUF_SUCCEEDED(r));
}
else {
- ASSERT(r == -1); /* Overflow */
- erts_free(ERTS_ALC_T_TMP, buf);
- if (erts_iolist_size(list, &size)) {
- goto bad_value;
+ char *new_buf;
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ invalid_flags,
+ !refp,
+ am_command);
+
+ /* Try with an 8KB buffer first (will often be enough I guess). */
+ size = 8*1024;
+
+ buf = erts_alloc(ERTS_ALC_T_TMP, size + 1);
+ r = erts_iolist_to_buf(list, buf, size);
+
+ if (ERTS_IOLIST_TO_BUF_SUCCEEDED(r)) {
+ ASSERT(r <= size);
+ size -= r;
+ }
+ else {
+ erts_free(ERTS_ALC_T_TMP, buf);
+ if (r == ERTS_IOLIST_TO_BUF_TYPE_ERROR)
+ goto bad_value;
+ ASSERT(r == ERTS_IOLIST_TO_BUF_OVERFLOW);
+ if (erts_iolist_size(list, &size))
+ goto bad_value;
+ buf = erts_alloc(ERTS_ALC_T_TMP, size + 1);
+ r = erts_iolist_to_buf(list, buf, size);
+ ASSERT(ERTS_IOLIST_TO_BUF_SUCCEEDED(r));
}
- /*
- * I know drivers that pad space with '\0' this is clearly
- * incorrect but I don't feel like fixing them now, insted
- * add ONE extra byte.
- */
- buf = erts_alloc(ERTS_ALC_T_TMP, size+1);
- r = io_list_to_buf(list, buf, size);
-#ifdef USE_VM_PROBES
- if (DTRACE_ENABLED(driver_output)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(caller_id, p)
- DTRACE4(driver_output, process_str, port_str, p->name, size);
- }
-#endif
- fpe_was_unmasked = erts_block_fpe();
- (*drv->output)((ErlDrvData)p->drv_data, buf, size);
- erts_unblock_fpe(fpe_was_unmasked);
+ try_call_state.pre_chk_sched_flags = 0; /* already checked */
+ if (force_immediate_call)
+ try_call_res = force_imm_drv_call(&try_call_state);
+ else
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK:
+ call_driver_output(flags & ERTS_PORT_SIG_FLG_BANG_OP,
+ c_p ? c_p->common.id : ERTS_INVALID_PID,
+ from,
+ prt,
+ drv,
+ buf,
+ size);
+ if (force_immediate_call)
+ finalize_force_imm_drv_call(&try_call_state);
+ else
+ finalize_imm_drv_call(&try_call_state);
+ /* Fall through... */
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ erts_free(ERTS_ALC_T_TMP, buf);
+ if (try_call_res == ERTS_TRY_IMM_DRV_CALL_OK)
+ return ERTS_PORT_OP_DONE;
+ else
+ return ERTS_PORT_OP_DROPPED;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS:
+ sched_flags = try_call_state.sched_flags;
+ case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK:
+ /* Schedule outputv() call instead... */
+ break;
+ }
+
+ new_buf = erts_alloc(ERTS_ALC_T_DRV_CMD_DATA, size + 1);
+ sys_memcpy(new_buf, buf, size);
erts_free(ERTS_ALC_T_TMP, buf);
+ buf = new_buf;
}
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_OUTPUT;
+ sigdp->u.output.from = from;
+ sigdp->u.output.bufp = buf;
+ sigdp->u.output.size = size;
+ port_sig_callback = port_sig_output;
+ }
+
+ task_flags = ERTS_PT_FLG_WAIT_BUSY;
+ sigdp->flags |= flags;
+ if (flags & (ERTS_P2P_SIG_DATA_FLG_FORCE|ERTS_P2P_SIG_DATA_FLG_NOSUSPEND)) {
+ task_flags = 0;
+ if (flags & ERTS_P2P_SIG_DATA_FLG_FORCE)
+ sigdp->flags &= ~ERTS_P2P_SIG_DATA_FLG_NOSUSPEND;
+ else if (flags & ERTS_P2P_SIG_DATA_FLG_NOSUSPEND)
+ task_flags = ERTS_PT_FLG_NOSUSPEND;
+ }
+
+ res = erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p ? c_p->common.id : ERTS_INVALID_PID,
+ refp,
+ sigdp,
+ task_flags,
+ port_sig_callback);
+
+ if (res != ERTS_PORT_OP_SCHEDULED) {
+ if (drv->outputv)
+ cleanup_scheduled_outputv(evp, cbin);
+ else
+ cleanup_scheduled_output(buf);
+ return res;
}
- p->bytes_out += size;
- erts_smp_atomic_add_nob(&erts_bytes_out, size);
-#ifdef ERTS_SMP
- if (p->xports)
- erts_smp_xports_unlock(p);
- ASSERT(!p->xports);
+ if (!(sched_flags & ERTS_PTS_FLG_EXIT) && (sched_flags & busy_flgs))
+ return ERTS_PORT_OP_BUSY_SCHEDULED;
+
+ return res;
+
+bad_value:
+
+ flags |= ERTS_PORT_SIG_FLG_BAD_OUTPUT;
+ return bad_port_signal(c_p, flags, prt, from, refp, am_command);
+}
+
+static ERTS_INLINE ErtsPortOpResult
+call_deliver_port_exit(int bang_op,
+ Eterm from,
+ Port *prt,
+ erts_aint32_t state,
+ Eterm reason,
+ int broken_link)
+{
+ /*
+ * if (bang_op)
+ * we are part of a "Prt ! {From, close}" operation
+ * else
+ * we are part of a call to port_close(Port)
+ * behave accordingly...
+ */
+
+ if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP)
+ return ERTS_PORT_OP_DROPPED;
+
+ if (bang_op && from != ERTS_PORT_GET_CONNECTED(prt)) {
+ send_badsig(prt);
+ return ERTS_PORT_OP_DROPPED;
+ }
+
+ if (broken_link) {
+ ErtsLink *lnk = erts_remove_link(&ERTS_P_LINKS(prt), from);
+ if (lnk)
+ erts_destroy_link(lnk);
+ else
+ return ERTS_PORT_OP_DROPPED;
+ }
+
+ if (!erts_deliver_port_exit(prt, from, reason, bang_op))
+ return ERTS_PORT_OP_DROPPED;
+
+#ifdef USE_VM_PROBES
+ if(DTRACE_ENABLED(port_command) && bang_op) {
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(from, prt);
+ DTRACE4(port_command, process_str, port_str, prt->name, "close");
+ }
#endif
- p->caller = NIL;
- return 0;
- bad_value:
- p->caller = NIL;
- {
- erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
- erts_dsprintf(dsbufp, "Bad value on output port '%s'\n", p->name);
- erts_send_error_to_logger_nogl(dsbufp);
- return 1;
+ return ERTS_PORT_OP_DONE;
+}
+
+static int
+port_sig_exit(Port *prt,
+ erts_aint32_t state,
+ int op,
+ ErtsProc2PortSigData *sigdp)
+{
+ Eterm msg = am_badarg;
+ if (op == ERTS_PROC2PORT_SIG_EXEC) {
+ ErtsPortOpResult res;
+ int bang_op = sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP;
+ int broken_link = sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BROKEN_LINK;
+ res = call_deliver_port_exit(bang_op,
+ sigdp->u.exit.from,
+ prt,
+ state,
+ sigdp->u.exit.reason,
+ broken_link);
+
+ if (res == ERTS_PORT_OP_DONE)
+ msg = am_true;
+ }
+ if (sigdp->u.exit.bp)
+ free_message_buffer(sigdp->u.exit.bp);
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, msg);
+
+ return ERTS_PORT_REDS_EXIT;
+}
+
+ErtsPortOpResult
+erts_port_exit(Process *c_p,
+ int flags,
+ Port *prt,
+ Eterm from,
+ Eterm reason,
+ Eterm *refp)
+{
+ ErtsPortOpResult res;
+ ErtsProc2PortSigData *sigdp;
+ ErlHeapFragment *bp = NULL;
+
+ ASSERT((flags & ~(ERTS_PORT_SIG_FLG_BANG_OP
+ | ERTS_PORT_SIG_FLG_BROKEN_LINK
+ | ERTS_PORT_SIG_FLG_FORCE_SCHED)) == 0);
+
+ if (!(flags & ERTS_PORT_SIG_FLG_FORCE_SCHED)) {
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ !refp,
+ am_exit);
+
+
+ switch (try_imm_drv_call(&try_call_state)) {
+ case ERTS_TRY_IMM_DRV_CALL_OK: {
+ res = call_deliver_port_exit(flags & ERTS_PORT_SIG_FLG_BANG_OP,
+ from,
+ prt,
+ try_call_state.state,
+ reason,
+ flags & ERTS_PORT_SIG_FLG_BROKEN_LINK);
+ finalize_imm_drv_call(&try_call_state);
+ return res;
+ }
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ default:
+ /* Schedule call instead... */
+ break;
+ }
}
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_EXIT | flags;
+ sigdp->u.exit.from = from;
+
+ if (is_immed(reason)) {
+ sigdp->u.exit.reason = reason;
+ sigdp->u.exit.bp = NULL;
+ }
+ else {
+ Eterm *hp;
+ Uint hsz = size_object(reason);
+ bp = new_message_buffer(hsz);
+ sigdp->u.exit.bp = bp;
+ hp = bp->mem;
+ sigdp->u.exit.reason = copy_struct(reason,
+ hsz,
+ &hp,
+ &bp->off_heap);
+ }
+
+ res = erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p ? c_p->common.id : from,
+ refp,
+ sigdp,
+ 0,
+ port_sig_exit);
+
+ if (res == ERTS_PORT_OP_DROPPED) {
+ if (bp)
+ free_message_buffer(bp);
+ }
+
+ return res;
}
-/* initialize the port array */
-void init_io(void)
+static ErtsPortOpResult
+set_port_connected(int bang_op,
+ Eterm from,
+ Port *prt,
+ erts_aint32_t state,
+ Eterm connect)
{
- int i;
- ErlDrvEntry** dp;
- char maxports[21]; /* enough for any 64-bit integer */
- size_t maxportssize = sizeof(maxports);
- Uint ports_bits = ERTS_PORTS_BITS;
- Sint port_extra_shift;
+ /*
+ * if (bang_op)
+ * we are part of a "Prt ! {From, {connect, Connect}}" operation
+ * else
+ * we are part of a call to port_connect(Port, Connect)
+ * behave accordingly...
+ */
-#ifdef ERTS_SMP
- init_xports_list_alloc();
+ if (state & ERTS_PORT_SFLGS_INVALID_LOOKUP)
+ return ERTS_PORT_OP_DROPPED;
+
+ if (bang_op) { /* Bang operation */
+ if (is_not_internal_pid(connect) || ERTS_PORT_GET_CONNECTED(prt) != from) {
+ send_badsig(prt);
+ return ERTS_PORT_OP_DROPPED;
+ }
+
+ ERTS_PORT_SET_CONNECTED(prt, connect);
+ deliver_result(prt->common.id, from, am_connected);
+
+#ifdef USE_VM_PROBES
+ if(DTRACE_ENABLED(port_command)) {
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(from, prt);
+ DTRACE4(port_command, process_str, port_str, prt->name, "connect");
+ }
#endif
+ }
+ else { /* Port BIF operation */
+ Process *rp = erts_proc_lookup_raw(connect);
+ if (!rp)
+ return ERTS_PORT_OP_DROPPED;
+ erts_smp_proc_lock(rp, ERTS_PROC_LOCK_LINK);
+ if (ERTS_PROC_IS_EXITING(rp)) {
+ erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
+ return ERTS_PORT_OP_DROPPED;
+ }
- pdl_init();
+ erts_add_link(&ERTS_P_LINKS(rp), LINK_PID, prt->common.id);
+ erts_add_link(&ERTS_P_LINKS(prt), LINK_PID, connect);
+
+ ERTS_PORT_SET_CONNECTED(prt, connect);
- if (erts_sys_getenv_raw("ERL_MAX_PORTS", maxports, &maxportssize) == 0)
- erts_max_ports = atoi(maxports);
+ erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
+
+#ifdef USE_VM_PROBES
+ if (DTRACE_ENABLED(port_connect)) {
+ DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE);
+ DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE);
+ DTRACE_CHARBUF(newprocess_str, DTRACE_TERM_BUF_SIZE);
+
+ dtrace_pid_str(connect, process_str);
+ erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id);
+ dtrace_proc_str(rp, newprocess_str);
+ DTRACE4(port_connect, process_str, port_str, prt->name, newprocess_str);
+ }
+#endif
+ }
+
+ return ERTS_PORT_OP_DONE;
+}
+
+static int
+port_sig_connect(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp)
+{
+ Eterm msg = am_badarg;
+ if (op == ERTS_PROC2PORT_SIG_EXEC) {
+ ErtsPortOpResult res;
+ res = set_port_connected(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_BANG_OP,
+ sigdp->u.connect.from,
+ prt,
+ state,
+ sigdp->u.connect.connected);
+ if (res == ERTS_PORT_OP_DONE)
+ msg = am_true;
+ }
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, msg);
+ return ERTS_PORT_REDS_CONNECT;
+}
+
+ErtsPortOpResult
+erts_port_connect(Process *c_p,
+ int flags,
+ Port *prt,
+ Eterm from,
+ Eterm connect,
+ Eterm *refp)
+{
+ ErtsProc2PortSigData *sigdp;
+ Eterm connect_id;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ !refp,
+ am_connect);
+
+ ASSERT((flags & ~ERTS_PORT_SIG_FLG_BANG_OP) == 0);
+
+ if (is_not_internal_pid(connect))
+ connect_id = NIL; /* Fail in op (for signal order) */
else
- erts_max_ports = sys_max_files();
+ connect_id = connect;
+
+ switch (try_imm_drv_call(&try_call_state)) {
+ case ERTS_TRY_IMM_DRV_CALL_OK: {
+ ErtsPortOpResult res;
+ res = set_port_connected(flags & ERTS_PORT_SIG_FLG_BANG_OP,
+ from,
+ prt,
+ try_call_state.state,
+ connect_id);
+ finalize_imm_drv_call(&try_call_state);
+ return res;
+ }
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ default:
+ /* Schedule call instead... */
+ break;
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_CONNECT | flags;
- if (erts_max_ports > ERTS_MAX_PORTS)
- erts_max_ports = ERTS_MAX_PORTS;
- if (erts_max_ports < 1024)
- erts_max_ports = 1024;
+ sigdp->u.connect.from = from;
+ sigdp->u.connect.connected = connect_id;
+
+ return erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ refp,
+ sigdp,
+ 0,
+ port_sig_connect);
+}
- if (erts_use_r9_pids_ports) {
- ports_bits = ERTS_R9_PORTS_BITS;
- if (erts_max_ports > ERTS_MAX_R9_PORTS)
- erts_max_ports = ERTS_MAX_R9_PORTS;
+static void
+port_unlink(Port *prt, Eterm from)
+{
+ ErtsLink *lnk = erts_remove_link(&ERTS_P_LINKS(prt), from);
+ if (lnk)
+ erts_destroy_link(lnk);
+}
+
+static int
+port_sig_unlink(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp)
+{
+ if (op == ERTS_PROC2PORT_SIG_EXEC)
+ port_unlink(prt, sigdp->u.unlink.from);
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_true);
+ return ERTS_PORT_REDS_UNLINK;
+}
+
+ErtsPortOpResult
+erts_port_unlink(Process *c_p, Port *prt, Eterm from, Eterm *refp)
+{
+ ErtsProc2PortSigData *sigdp;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p,
+ prt,
+ ERTS_PORT_SFLGS_DEAD,
+ 0,
+ !refp,
+ am_unlink);
+
+ switch (try_imm_drv_call(&try_call_state)) {
+ case ERTS_TRY_IMM_DRV_CALL_OK:
+ port_unlink(prt, from);
+ finalize_imm_drv_call(&try_call_state);
+ return ERTS_PORT_OP_DONE;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ default:
+ /* Schedule call instead... */
+ break;
}
- port_extra_shift = erts_fit_in_bits(erts_max_ports - 1);
- port_num_mask = (1 << ports_bits) - 1;
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_UNLINK;
+ sigdp->u.unlink.from = from;
+
+ return erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p ? c_p->common.id : from,
+ refp,
+ sigdp,
+ 0,
+ port_sig_unlink);
+}
- erts_port_tab_index_mask = ~(~((Uint) 0) << port_extra_shift);
- erts_max_ports = 1 << port_extra_shift;
+static void
+port_link_failure(Eterm port_id, Eterm linker)
+{
+ Process *rp;
+ ErtsProcLocks rp_locks = ERTS_PROC_LOCK_LINK|ERTS_PROC_LOCKS_XSIG_SEND;
+ ASSERT(is_internal_pid(linker));
+ rp = erts_pid2proc(NULL, 0, linker, rp_locks);
+ if (rp) {
+ ErtsLink *rlnk = erts_remove_link(&ERTS_P_LINKS(rp), port_id);
+ if (rlnk) {
+ int xres = erts_send_exit_signal(NULL,
+ port_id,
+ rp,
+ &rp_locks,
+ am_noproc,
+ NIL,
+ NULL,
+ 0);
+ if (xres >= 0 && IS_TRACED_FL(rp, F_TRACE_PROCS)) {
+ /* We didn't exit the process and it is traced */
+ if (IS_TRACED_FL(rp, F_TRACE_PROCS))
+ trace_proc(NULL, rp, am_getting_unlinked, port_id);
+ }
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ }
+ }
+}
- erts_smp_mtx_init(&erts_driver_list_lock,"driver_list");
- driver_list = NULL;
- erts_smp_tsd_key_create(&driver_list_lock_status_key);
- erts_smp_tsd_key_create(&driver_list_last_error_key);
+static void
+port_link(Port *prt, erts_aint32_t state, Eterm to)
+{
+ if (!(state & ERTS_PORT_SFLGS_INVALID_LOOKUP))
+ erts_add_link(&ERTS_P_LINKS(prt), LINK_PID, to);
+ else
+ port_link_failure(prt->common.id, to);
+}
- if (erts_max_ports * sizeof(Port) <= erts_max_ports) {
- /* More memory needed than the whole address space. */
- erts_alloc_enomem(ERTS_ALC_T_PORT_TABLE, ~((Uint) 0));
+static int
+port_sig_link(Port *prt, erts_aint32_t state, int op, ErtsProc2PortSigData *sigdp)
+{
+ if (op == ERTS_PROC2PORT_SIG_EXEC)
+ port_link(prt, state, sigdp->u.link.to);
+ else
+ port_link_failure(sigdp->u.link.port, sigdp->u.link.to);
+ if (sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_true);
+ return ERTS_PORT_REDS_LINK;
+}
+
+ErtsPortOpResult
+erts_port_link(Process *c_p, Port *prt, Eterm to, Eterm *refp)
+{
+ ErtsProc2PortSigData *sigdp;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ !refp,
+ am_link);
+
+ switch (try_imm_drv_call(&try_call_state)) {
+ case ERTS_TRY_IMM_DRV_CALL_OK:
+ port_link(prt, try_call_state.state, to);
+ finalize_imm_drv_call(&try_call_state);
+ return ERTS_PORT_OP_DONE;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_BADARG;
+ default:
+ /* Schedule call instead... */
+ break;
}
- erts_port = (Port *) erts_alloc(ERTS_ALC_T_PORT_TABLE,
- erts_max_ports * sizeof(Port));
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_LINK;
+ sigdp->u.link.port = prt->common.id;
+ sigdp->u.link.to = to;
+
+ return erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p ? c_p->common.id : to,
+ refp,
+ sigdp,
+ 0,
+ port_sig_link);
+}
- erts_smp_atomic_init_nob(&erts_bytes_out, 0);
- erts_smp_atomic_init_nob(&erts_bytes_in, 0);
+void erts_init_io(int port_tab_size,
+ int port_tab_size_ignore_files)
+{
+ ErlDrvEntry** dp;
+ erts_smp_rwmtx_opt_t drv_list_rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+ drv_list_rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+ drv_list_rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
- for (i = 0; i < erts_max_ports; i++) {
- erts_port_task_init_sched(&erts_port[i].sched);
#ifdef ERTS_SMP
- erts_smp_atomic_init_nob(&erts_port[i].refc, 0);
- erts_port[i].lock = NULL;
- erts_port[i].xports = NULL;
- erts_smp_spinlock_init_x(&erts_port[i].state_lck,
-#ifdef ERTS_ENABLE_LOCK_COUNT
- (erts_lcnt_rt_options & ERTS_LCNT_OPT_PORTLOCK) ? "port_state" : NULL,
-#else
- "port_state",
-#endif
- make_small(0));
+ init_xports_list_alloc();
#endif
- erts_port[i].tracer_proc = NIL;
- erts_port[i].trace_flags = 0;
- erts_port[i].drv_ptr = NULL;
- erts_port[i].status = ERTS_PORT_SFLG_FREE;
- erts_port[i].name = NULL;
- erts_port[i].nlinks = NULL;
- erts_port[i].monitors = NULL;
- erts_port[i].linebuf = NULL;
- erts_port[i].port_data_lock = NULL;
+ pdl_init();
+
+ if (!port_tab_size_ignore_files) {
+ int max_files = sys_max_files();
+ if (port_tab_size < max_files)
+ port_tab_size = max_files;
}
- erts_smp_atomic32_init_nob(&erts_ports_snapshot, (erts_aint32_t) 0);
- last_port_num = 0;
- erts_smp_spinlock_init(&get_free_port_lck, "get_free_port");
+ if (port_tab_size > ERTS_MAX_PORTS)
+ port_tab_size = ERTS_MAX_PORTS;
+ else if (port_tab_size < ERTS_MIN_PORTS)
+ port_tab_size = ERTS_MIN_PORTS;
+
+ erts_smp_rwmtx_init_opt(&erts_driver_list_lock,
+ &drv_list_rwmtx_opts,
+ "driver_list");
+ driver_list = NULL;
+ erts_smp_tsd_key_create(&driver_list_lock_status_key);
+ erts_smp_tsd_key_create(&driver_list_last_error_key);
+
+ erts_ptab_init_table(&erts_port,
+ ERTS_ALC_T_PORT_TABLE,
+ NULL,
+ (ErtsPTabElementCommon *) &erts_invalid_port.common,
+ port_tab_size,
+ "port_table");
+
+ erts_smp_atomic_init_nob(&erts_bytes_out, 0);
+ erts_smp_atomic_init_nob(&erts_bytes_in, 0);
sys_init_io();
erts_smp_tsd_set(driver_list_lock_status_key, (void *) 1);
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
init_driver(&fd_driver, &fd_driver_entry, NULL);
init_driver(&vanilla_driver, &vanilla_driver_entry, NULL);
@@ -1394,28 +2655,64 @@ void init_io(void)
erts_add_driver_entry(*dp, NULL, 1);
erts_smp_tsd_set(driver_list_lock_status_key, NULL);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
-void erts_lcnt_enable_io_lock_count(int enable) {
- int i;
- for (i = 0; i < erts_max_ports; i++) {
- Port* p = &erts_port[i];
- if (enable) {
- erts_lcnt_init_lock_x(&p->state_lck.lcnt, "port_state", ERTS_LCNT_LT_SPINLOCK, make_small(i));
- if (p->lock) {
- erts_lcnt_init_lock_x(&p->lock->lcnt, "port_lock", ERTS_LCNT_LT_MUTEX, make_small(i));
- }
- } else {
- erts_lcnt_destroy_lock(&p->state_lck.lcnt);
- if (p->lock) {
- erts_lcnt_destroy_lock(&p->lock->lcnt);
- }
- }
+static ERTS_INLINE void lcnt_enable_drv_lock_count(erts_driver_t *dp, int enable)
+{
+ if (dp->lock) {
+ if (enable)
+ erts_lcnt_init_lock_x(&dp->lock->lcnt,
+ "driver_lock",
+ ERTS_LCNT_LT_MUTEX,
+ am_atom_put(dp->name,
+ sys_strlen(dp->name)));
+ else
+ erts_lcnt_destroy_lock(&dp->lock->lcnt);
+
+ }
+}
+
+static ERTS_INLINE void lcnt_enable_port_lock_count(Port *prt, int enable)
+{
+ erts_aint32_t state = erts_atomic32_read_nob(&prt->state);
+ if (!enable) {
+ erts_lcnt_destroy_lock(&prt->sched.mtx.lcnt);
+ if (state & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK)
+ erts_lcnt_destroy_lock(&prt->lock->lcnt);
+ }
+ else {
+ erts_lcnt_init_lock_x(&prt->sched.mtx.lcnt,
+ "port_sched_lock",
+ ERTS_LCNT_LT_MUTEX,
+ prt->common.id);
+ if (state & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK)
+ erts_lcnt_init_lock_x(&prt->lock->lcnt,
+ "port_lock",
+ ERTS_LCNT_LT_MUTEX,
+ prt->common.id);
}
}
+
+void erts_lcnt_enable_io_lock_count(int enable)
+{
+ erts_driver_t *dp;
+ int i, max = erts_ptab_max(&erts_port);
+
+ for (i = 0; i < max; i++) {
+ Port *prt = erts_pix2port(i);
+ if (prt)
+ lcnt_enable_port_lock_count(prt, enable);
+ }
+
+ lcnt_enable_drv_lock_count(&vanilla_driver, enable);
+ lcnt_enable_drv_lock_count(&spawn_driver, enable);
+ lcnt_enable_drv_lock_count(&fd_driver, enable);
+ for (dp = driver_list; dp; dp = dp->next)
+ lcnt_enable_drv_lock_count(dp, enable);
+}
#endif
/*
@@ -1594,14 +2891,15 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
{
Process *rp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
- ASSERT(is_internal_port(sender)
- && is_internal_pid(pid)
- && internal_pid_index(pid) < erts_max_processes);
+ ASSERT(is_internal_port(sender) && is_internal_pid(pid));
- rp = erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = (scheduler
+ ? erts_proc_lookup(pid)
+ : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (rp) {
Eterm tuple;
@@ -1609,17 +2907,22 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
ErlOffHeap *ohp;
Eterm* hp;
Uint sz_res;
- sz_res = size_object(res);
- hp = erts_alloc_message_heap(sz_res + 3, &bp, &ohp, rp, &rp_locks);
- res = copy_struct(res, sz_res, &hp, ohp);
- tuple = TUPLE2(hp, sender, res);
+
+ sz_res = size_object(res);
+ hp = erts_alloc_message_heap(sz_res + 3, &bp, &ohp, rp, &rp_locks);
+ res = copy_struct(res, sz_res, &hp, ohp);
+ tuple = TUPLE2(hp, sender, res);
erts_queue_message(rp, &rp_locks, bp, tuple, NIL
#ifdef USE_VM_PROBES
, NIL
#endif
);
- erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
+
}
}
@@ -1632,7 +2935,7 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
* len -- length of data
*/
-static void deliver_read_message(Port* prt, Eterm to,
+static void deliver_read_message(Port* prt, erts_aint32_t state, Eterm to,
char *hbuf, ErlDrvSizeT hlen,
char *buf, ErlDrvSizeT len, int eol)
{
@@ -1644,28 +2947,33 @@ static void deliver_read_message(Port* prt, Eterm to,
ErlHeapFragment *bp;
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
ERTS_SMP_CHK_NO_PROC_LOCKS;
need = 3 + 3 + 2*hlen;
- if (prt->status & ERTS_PORT_SFLG_LINEBUF_IO) {
+
+ if (state & ERTS_PORT_SFLG_LINEBUF_IO) {
need += 3;
}
- if (prt->status & ERTS_PORT_SFLG_BINARY_IO && buf != NULL) {
+ if ((state & ERTS_PORT_SFLG_BINARY_IO) && buf != NULL) {
need += PROC_BIN_SIZE;
} else {
need += 2*len;
}
- rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = (scheduler
+ ? erts_proc_lookup(to)
+ : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+
if (!rp)
return;
hp = erts_alloc_message_heap(need, &bp, &ohp, rp, &rp_locks);
listp = NIL;
- if ((prt->status & ERTS_PORT_SFLG_BINARY_IO) == 0) {
+ if ((state & ERTS_PORT_SFLG_BINARY_IO) == 0) {
listp = buf_to_intlist(&hp, buf, len, listp);
} else if (buf != NULL) {
ProcBin* pb;
@@ -1696,14 +3004,14 @@ static void deliver_read_message(Port* prt, Eterm to,
listp = buf_to_intlist(&hp, hbuf, hlen, listp);
}
- if (prt->status & ERTS_PORT_SFLG_LINEBUF_IO){
+ if (state & ERTS_PORT_SFLG_LINEBUF_IO){
listp = TUPLE2(hp, (eol) ? am_eol : am_noeol, listp);
hp += 3;
}
tuple = TUPLE2(hp, am_data, listp);
hp += 3;
- tuple = TUPLE2(hp, prt->id, tuple);
+ tuple = TUPLE2(hp, prt->common.id, tuple);
hp += 3;
erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined
@@ -1711,15 +3019,18 @@ static void deliver_read_message(Port* prt, Eterm to,
, NIL
#endif
);
- erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
/*
* Deliver all lines in a line buffer, repeats calls to
* deliver_read_message, and takes the same parameters.
*/
-static void deliver_linebuf_message(Port* prt, Eterm to,
+static void deliver_linebuf_message(Port* prt, erts_aint_t state,
+ Eterm to,
char* hbuf, ErlDrvSizeT hlen,
char *buf, ErlDrvSizeT len)
{
@@ -1728,7 +3039,7 @@ static void deliver_linebuf_message(Port* prt, Eterm to,
if(init_linebuf_context(&lc,&(prt->linebuf), buf, len) < 0)
return;
while((ret = read_linebuf(&lc)) > LINEBUF_EMPTY)
- deliver_read_message(prt, to, hbuf, hlen, LINEBUF_DATA(lc),
+ deliver_read_message(prt, state, to, hbuf, hlen, LINEBUF_DATA(lc),
LINEBUF_DATALEN(lc), (ret == LINEBUF_EOL));
}
@@ -1739,20 +3050,25 @@ static void deliver_linebuf_message(Port* prt, Eterm to,
* Parameters:
* prt - Pointer to a Port structure for this port.
*/
-static void flush_linebuf_messages(Port *prt)
+static void flush_linebuf_messages(Port *prt, erts_aint32_t state)
{
LineBufContext lc;
int ret;
ERTS_SMP_LC_ASSERT(!prt || erts_lc_is_port_locked(prt));
- if(prt == NULL || !(prt->status & ERTS_PORT_SFLG_LINEBUF_IO))
+
+ if (!prt)
+ return;
+
+ if (!(state & ERTS_PORT_SFLG_LINEBUF_IO))
return;
if(init_linebuf_context(&lc,&(prt->linebuf), NULL, 0) < 0)
return;
while((ret = flush_linebuf(&lc)) > LINEBUF_EMPTY)
deliver_read_message(prt,
- prt->connected,
+ state,
+ ERTS_PORT_GET_CONNECTED(prt),
NULL,
0,
LINEBUF_DATA(lc),
@@ -1779,6 +3095,8 @@ deliver_vec_message(Port* prt, /* Port */
ErlHeapFragment *bp;
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
+ erts_aint32_t state;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -1787,16 +3105,20 @@ deliver_vec_message(Port* prt, /* Port */
* Check arguments for validity.
*/
- rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+
+ rp = (scheduler
+ ? erts_proc_lookup(to)
+ : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (!rp)
return;
+ state = erts_atomic32_read_nob(&prt->state);
/*
* Calculate the exact number of heap words needed.
*/
need = 3 + 3; /* Heap space for two tuples */
- if (prt->status & ERTS_PORT_SFLG_BINARY_IO) {
+ if (state & ERTS_PORT_SFLG_BINARY_IO) {
need += (2+PROC_BIN_SIZE)*vsize - 2 + hlen*2;
} else {
need += (hlen+csize)*2;
@@ -1807,7 +3129,7 @@ deliver_vec_message(Port* prt, /* Port */
listp = NIL;
iov += vsize;
- if ((prt->status & ERTS_PORT_SFLG_BINARY_IO) == 0) {
+ if ((state & ERTS_PORT_SFLG_BINARY_IO) == 0) {
Eterm* thp = hp;
while (vsize--) {
iov--;
@@ -1860,7 +3182,7 @@ deliver_vec_message(Port* prt, /* Port */
tuple = TUPLE2(hp, am_data, listp);
hp += 3;
- tuple = TUPLE2(hp, prt->id, tuple);
+ tuple = TUPLE2(hp, prt->common.id, tuple);
hp += 3;
erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined
@@ -1869,7 +3191,8 @@ deliver_vec_message(Port* prt, /* Port */
#endif
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
@@ -1892,7 +3215,7 @@ static void deliver_bin_message(Port* prt, /* port */
/*
* Note.
*
- * The test for (p->status & ERTS_PORT_SFLGS_DEAD) == 0 is important since the
+ * The test for ERTS_PORT_SFLGS_DEAD is important since the
* driver's flush function might call driver_async, which when using no
* threads and being short circuited will notice that the io queue is empty
* (after calling the driver's async_ready) and recursively call
@@ -1908,7 +3231,7 @@ static void flush_port(Port *p)
if (p->drv_ptr->flush != NULL) {
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(driver_flush)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(p->connected, p)
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(ERTS_PORT_GET_CONNECTED(p), p)
DTRACE3(driver_flush, process_str, port_str, p->name);
}
#endif
@@ -1923,11 +3246,12 @@ static void flush_port(Port *p)
}
#ifdef ERTS_SMP
if (p->xports)
- erts_smp_xports_unlock(p);
+ erts_port_handle_xports(p);
ASSERT(!p->xports);
#endif
}
- if ((p->status & ERTS_PORT_SFLGS_DEAD) == 0 && is_port_ioq_empty(p)) {
+ if ((erts_atomic32_read_nob(&p->state) & ERTS_PORT_SFLGS_DEAD) == 0
+ && is_port_ioq_empty(p)) {
terminate_port(p);
}
}
@@ -1939,29 +3263,29 @@ terminate_port(Port *prt)
Eterm send_closed_port_id;
Eterm connected_id = NIL /* Initialize to silence compiler */;
erts_driver_t *drv;
- int halt;
+ erts_aint32_t state;
ERTS_SMP_CHK_NO_PROC_LOCKS;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- ASSERT(!prt->nlinks);
- ASSERT(!prt->monitors);
+ ASSERT(!ERTS_P_LINKS(prt));
+ ASSERT(!ERTS_P_MONITORS(prt));
- /* prt->status may be altered by kill_port()below */
- halt = (prt->status & ERTS_PORT_SFLG_HALT) != 0;
- if (prt->status & ERTS_PORT_SFLG_SEND_CLOSED) {
- erts_port_status_band_set(prt, ~ERTS_PORT_SFLG_SEND_CLOSED);
- send_closed_port_id = prt->id;
- connected_id = prt->connected;
+ /* state may be altered by kill_port() below */
+ state = erts_atomic32_read_band_nob(&prt->state,
+ ~ERTS_PORT_SFLG_SEND_CLOSED);
+ if (state & ERTS_PORT_SFLG_SEND_CLOSED) {
+ send_closed_port_id = prt->common.id;
+ connected_id = ERTS_PORT_GET_CONNECTED(prt);
}
else {
send_closed_port_id = NIL;
}
#ifdef ERTS_SMP
- erts_cancel_smp_ptimer(prt->ptimer);
+ erts_cancel_smp_ptimer(prt->common.u.alive.ptimer);
#else
- erts_cancel_timer(&prt->tm);
+ erts_cancel_timer(&prt->common.u.alive.tm);
#endif
drv = prt->drv_ptr;
@@ -1969,7 +3293,7 @@ terminate_port(Port *prt)
int fpe_was_unmasked = erts_block_fpe();
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(driver_stop)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(prt->connected, prt)
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(connected_id, prt)
DTRACE3(driver_stop, process_str, drv->name, port_str);
}
#endif
@@ -1977,14 +3301,14 @@ terminate_port(Port *prt)
erts_unblock_fpe(fpe_was_unmasked);
#ifdef ERTS_SMP
if (prt->xports)
- erts_smp_xports_unlock(prt);
+ erts_port_handle_xports(prt);
ASSERT(!prt->xports);
#endif
}
if(drv->handle != NULL) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rlock(&erts_driver_list_lock);
erts_ddll_decrement_port_count(drv->handle);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_runlock(&erts_driver_list_lock);
}
stopq(prt); /* clear queue memory */
if(prt->linebuf != NULL){
@@ -2000,20 +3324,21 @@ terminate_port(Port *prt)
if (prt->psd)
erts_free(ERTS_ALC_T_PRTSD, prt->psd);
+ ASSERT(prt->dist_entry == NULL);
+
kill_port(prt);
/*
* We don't want to send the closed message until after the
* port has been removed from the port table (in kill_port()).
*/
- if (halt && (erts_smp_atomic32_dec_read_nob(&erts_halt_progress) == 0)) {
- erts_smp_port_unlock(prt); /* We will exit and never return */
+ if ((state & ERTS_PORT_SFLG_HALT)
+ && (erts_smp_atomic32_dec_read_nob(&erts_halt_progress) == 0)) {
+ erts_port_release(prt); /* We will exit and never return */
erl_exit_flush_async(erts_halt_code, "");
}
if (is_internal_port(send_closed_port_id))
deliver_result(send_closed_port_id, connected_id, am_closed);
-
- ASSERT(prt->dist_entry == NULL);
}
void
@@ -2033,7 +3358,7 @@ static void sweep_one_monitor(ErtsMonitor *mon, void *vpsc)
if (!rp) {
goto done;
}
- rmon = erts_remove_monitor(&(rp->monitors),mon->ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), mon->ref);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
if (rmon == NULL) {
goto done;
@@ -2087,7 +3412,7 @@ static void sweep_one_link(ErtsLink *lnk, void *vpsc)
ASSERT(is_internal_pid(lnk->pid));
rp = erts_pid2proc(NULL, 0, lnk->pid, rp_locks);
if (rp) {
- ErtsLink *rlnk = erts_remove_link(&(rp->nlinks), psc->port);
+ ErtsLink *rlnk = erts_remove_link(&ERTS_P_LINKS(rp), psc->port);
if (rlnk) {
int xres = erts_send_exit_signal(NULL,
@@ -2123,11 +3448,13 @@ static void sweep_one_link(ErtsLink *lnk, void *vpsc)
* that is to kill a port till reason kill. Then the port is stopped.
*
*/
-void
-erts_do_exit_port(Port *p, Eterm from, Eterm reason)
+
+int
+erts_deliver_port_exit(Port *p, Eterm from, Eterm reason, int send_closed)
{
ErtsLink *lnk;
Eterm rreason;
+ erts_aint32_t state;
ERTS_SMP_CHK_NO_PROC_LOCKS;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p));
@@ -2147,66 +3474,76 @@ erts_do_exit_port(Port *p, Eterm from, Eterm reason)
}
#endif
- if ((p->status & (ERTS_PORT_SFLGS_DEAD
- | ERTS_PORT_SFLG_EXITING
- | ERTS_PORT_SFLG_IMMORTAL))
- || ((reason == am_normal) &&
- ((from != p->connected) && (from != p->id)))) {
- return;
- }
+ state = erts_atomic32_read_nob(&p->state);
+ if (state & (ERTS_PORT_SFLGS_DEAD
+ | ERTS_PORT_SFLG_EXITING
+ | ERTS_PORT_SFLG_CLOSING))
+ return 0;
+
+ if (reason == am_normal && from != ERTS_PORT_GET_CONNECTED(p) && from != p->common.id)
+ return 0;
+
+ if (send_closed)
+ erts_atomic32_read_bor_relb(&p->state,
+ ERTS_PORT_SFLG_SEND_CLOSED);
if (IS_TRACED_FL(p, F_TRACE_PORTS)) {
trace_port(p, am_closed, reason);
}
- erts_trace_check_exiting(p->id);
+ erts_trace_check_exiting(p->common.id);
/*
* Setting the port to not busy here, frees the list of pending
* processes and makes them runnable.
*/
- set_busy_port((ErlDrvPort)internal_port_index(p->id), 0);
+ set_busy_port((ErlDrvPort) p, 0);
- if (p->reg != NULL)
- (void) erts_unregister_name(NULL, 0, p, p->reg->name);
+ if (p->common.u.alive.reg != NULL)
+ (void) erts_unregister_name(NULL, 0, p, p->common.u.alive.reg->name);
- erts_port_status_bor_set(p, ERTS_PORT_SFLG_EXITING);
+ state = erts_atomic32_read_bor_relb(&p->state, ERTS_PORT_SFLG_EXITING);
{
- SweepContext sc = {p->id, rreason};
- lnk = p->nlinks;
- p->nlinks = NULL;
+ SweepContext sc = {p->common.id, rreason};
+ lnk = ERTS_P_LINKS(p);
+ ERTS_P_LINKS(p) = NULL;
erts_sweep_links(lnk, &sweep_one_link, &sc);
}
DRV_MONITOR_LOCK_PDL(p);
{
- ErtsMonitor *moni = p->monitors;
- p->monitors = NULL;
+ ErtsMonitor *moni = ERTS_P_MONITORS(p);
+ ERTS_P_MONITORS(p) = NULL;
erts_sweep_monitors(moni, &sweep_one_monitor, NULL);
}
DRV_MONITOR_UNLOCK_PDL(p);
- if ((p->status & ERTS_PORT_SFLG_DISTRIBUTION) && p->dist_entry) {
+ if ((state & ERTS_PORT_SFLG_DISTRIBUTION) && p->dist_entry) {
erts_do_net_exits(p->dist_entry, rreason);
erts_deref_dist_entry(p->dist_entry);
- p->dist_entry = NULL;
- erts_port_status_band_set(p, ~ERTS_PORT_SFLG_DISTRIBUTION);
+ p->dist_entry = NULL;
+ erts_atomic32_read_band_relb(&p->state,
+ ~ERTS_PORT_SFLG_DISTRIBUTION);
}
if ((reason != am_kill) && !is_port_ioq_empty(p)) {
- erts_port_status_bandor_set(p,
- ~ERTS_PORT_SFLG_EXITING, /* must turn it off */
- ERTS_PORT_SFLG_CLOSING);
+ /* must turn exiting flag off */
+ erts_atomic32_read_bset_relb(&p->state,
+ (ERTS_PORT_SFLG_EXITING
+ | ERTS_PORT_SFLG_CLOSING),
+ ERTS_PORT_SFLG_CLOSING);
flush_port(p);
}
else {
terminate_port(p);
}
+
+ return 1;
}
/* About the states ERTS_PORT_SFLG_EXITING and ERTS_PORT_SFLG_CLOSING used above.
**
-** ERTS_PORT_SFLG_EXITING is a recursion protection for erts_do_exit_port().
+** ERTS_PORT_SFLG_EXITING is a recursion protection for erts_deliver_port_exit().
** It is unclear whether this state is necessary or not, it might be possible
** to merge it with ERTS_PORT_SFLG_CLOSING. ERTS_PORT_SFLG_EXITING only persists
** over a section of sequential (but highly recursive) code.
@@ -2222,234 +3559,1108 @@ erts_do_exit_port(Port *p, Eterm from, Eterm reason)
** {PID, close}
** {PID, {command, io-list}}
** {PID, {connect, New_PID}}
-**
-**
*/
-void erts_port_command(Process *proc,
- Eterm caller_id,
- Port *port,
- Eterm command)
+ErtsPortOpResult
+erts_port_command(Process *c_p,
+ int flags,
+ Port *port,
+ Eterm command,
+ Eterm *refp)
{
Eterm *tp;
- Eterm pid;
- if (!port)
- return;
+ ASSERT(port);
- erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_MAIN);
- ERTS_SMP_CHK_NO_PROC_LOCKS;
- ASSERT(!INVALID_PORT(port, port->id));
+ flags |= ERTS_PORT_SIG_FLG_BANG_OP;
if (is_tuple_arity(command, 2)) {
+ Eterm cntd;
tp = tuple_val(command);
- if ((pid = port->connected) == tp[1]) {
- /* PID must be connected */
+ cntd = tp[1];
+ if (is_internal_pid(cntd)) {
if (tp[2] == am_close) {
- erts_port_status_bor_set(port, ERTS_PORT_SFLG_SEND_CLOSED);
- erts_do_exit_port(port, pid, am_normal);
-
-#ifdef USE_VM_PROBES
- if(DTRACE_ENABLED(port_command)) {
- DTRACE_FORMAT_COMMON_PROC_AND_PORT(proc, port)
- DTRACE4(port_command, process_str, port_str, port->name, "close");
- }
-#endif
- goto done;
+ if (!erts_port_synchronous_ops)
+ refp = NULL;
+ flags &= ~ERTS_PORT_SIG_FLG_NOSUSPEND;
+ return erts_port_exit(c_p, flags, port, cntd, am_normal, refp);
} else if (is_tuple_arity(tp[2], 2)) {
tp = tuple_val(tp[2]);
if (tp[1] == am_command) {
- if (erts_write_to_port(caller_id, port, tp[2]) == 0)
- goto done;
- } else if ((tp[1] == am_connect) && is_internal_pid(tp[2])) {
-#ifdef USE_VM_PROBES
- if(DTRACE_ENABLED(port_command)) {
- DTRACE_FORMAT_COMMON_PROC_AND_PORT(proc, port)
- DTRACE4(port_command, process_str, port_str, port->name, "connect");
- }
-#endif
- port->connected = tp[2];
- deliver_result(port->id, pid, am_connected);
- goto done;
+ if (!(flags & ERTS_PORT_SIG_FLG_NOSUSPEND)
+ && !erts_port_synchronous_ops)
+ refp = NULL;
+ return erts_port_output(c_p, flags, port, cntd, tp[2], refp);
+ }
+ else if (tp[1] == am_connect) {
+ if (!erts_port_synchronous_ops)
+ refp = NULL;
+ flags &= ~ERTS_PORT_SIG_FLG_NOSUSPEND;
+ return erts_port_connect(c_p, flags, port, cntd, tp[2], refp);
}
}
}
}
- {
- ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- Process* rp = erts_pid2proc_opt(NULL, 0,
- port->connected, rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
- if (rp) {
- (void) erts_send_exit_signal(NULL,
- port->id,
- rp,
- &rp_locks,
- am_badsig,
- NIL,
- NULL,
- 0);
- erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
- }
+ /* badsig */
+ if (!erts_port_synchronous_ops)
+ refp = NULL;
+ flags &= ~ERTS_PORT_SIG_FLG_NOSUSPEND;
+ return bad_port_signal(c_p, flags, port, c_p->common.id, refp, am_command);
+}
+
+static ERTS_INLINE ErtsPortOpResult
+call_driver_control(Eterm caller,
+ Port *prt,
+ unsigned int command,
+ char *bufp,
+ ErlDrvSizeT size,
+ char **resp_bufp,
+ ErlDrvSizeT *from_size)
+{
+ ErlDrvSSizeT cres;
+
+ if (!prt->drv_ptr->control)
+ return ERTS_PORT_OP_BADARG;
+
+#ifdef USE_VM_PROBES
+ if (DTRACE_ENABLED(port_control) || DTRACE_ENABLED(driver_control)) {
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(caller, prt);
+ DTRACE4(port_control, process_str, port_str, prt->name, command);
+ DTRACE5(driver_control, process_str, port_str, prt->name,
+ command, size);
}
- done:
- erts_smp_proc_lock(proc, ERTS_PROC_LOCK_MAIN);
+#endif
+
+ prt->caller = caller;
+ cres = prt->drv_ptr->control((ErlDrvData) prt->drv_data,
+ command,
+ bufp,
+ size,
+ resp_bufp,
+ *from_size);
+ prt->caller = NIL;
+
+ if (cres < 0)
+ return ERTS_PORT_OP_BADARG;
+
+ *from_size = (ErlDrvSizeT) cres;
+
+ return ERTS_PORT_OP_DONE;
}
-/*
- * Control a port synchronously.
- * Returns either a list or a binary.
- */
-Eterm
-erts_port_control(Process* p, Port* prt, Uint command, Eterm iolist)
-{
- byte* to_port = NULL; /* Buffer to write to port. */
- /* Initialization is for shutting up
- warning about use before set. */
- Uint to_len = 0; /* Length of buffer. */
- int must_free = 0; /* True if the buffer should be freed. */
- char port_result[ERL_ONHEAP_BIN_LIMIT]; /* Default buffer for result from port. */
- char* port_resp; /* Pointer to result buffer. */
- ErlDrvSSizeT n;
- ErlDrvSSizeT (*control)
- (ErlDrvData, unsigned, char*, ErlDrvSizeT, char**, ErlDrvSizeT);
- int fpe_was_unmasked;
+static void
+cleanup_scheduled_control(Binary *binp, char *bufp)
+{
+ if (binp) {
+ if (erts_refc_dectest(&binp->refc, 0) == 0)
+ erts_bin_free(binp);
+ }
+ else {
+ if (bufp)
+ erts_free(ERTS_ALC_T_DRV_CTRL_DATA, bufp);
+ }
+}
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- if ((control = prt->drv_ptr->control) == NULL) {
- return THE_NON_VALUE;
+static ERTS_INLINE Uint
+port_control_result_size(int control_flags,
+ char *resp_bufp,
+ ErlDrvSizeT *resp_size,
+ char *pre_alloc_buf)
+{
+ if (!resp_bufp)
+ return (Uint) 0;
+
+ if (control_flags & PORT_CONTROL_FLAG_BINARY) {
+ if (resp_bufp != pre_alloc_buf) {
+ ErlDrvBinary *dbin = (ErlDrvBinary *) resp_bufp;
+ *resp_size = dbin->orig_size;
+ if (*resp_size > ERL_ONHEAP_BIN_LIMIT)
+ return PROC_BIN_SIZE;
+ }
+ ASSERT(*resp_size <= ERL_ONHEAP_BIN_LIMIT);
+ return (Uint) heap_bin_size((*resp_size));
}
- /*
- * Convert the iolist to a buffer, pointed to by to_port,
- * and with its length in to_len.
- */
- if (is_binary(iolist) && binary_bitoffset(iolist) == 0) {
+ return (Uint) 2*(*resp_size);
+}
+
+static ERTS_INLINE Eterm
+write_port_control_result(int control_flags,
+ char *resp_bufp,
+ ErlDrvSizeT resp_size,
+ char *pre_alloc_buf,
+ Eterm **hpp,
+ ErlHeapFragment *bp,
+ ErlOffHeap *ohp)
+{
+ Eterm res;
+ if (!resp_bufp)
+ return NIL;
+ if (control_flags & PORT_CONTROL_FLAG_BINARY) {
+ /* Binary result */
+ ErlDrvBinary *dbin;
+ ErlHeapBin *hbin;
+
+ if (resp_bufp == pre_alloc_buf)
+ dbin = NULL;
+ else {
+ dbin = (ErlDrvBinary *) resp_bufp;
+ if (dbin->orig_size > ERL_ONHEAP_BIN_LIMIT) {
+ ProcBin* pb = (ProcBin *) *hpp;
+ *hpp += PROC_BIN_SIZE;
+ pb->thing_word = HEADER_PROC_BIN;
+ pb->size = dbin->orig_size;
+ pb->next = ohp->first;
+ ohp->first = (struct erl_off_heap_header *) pb;
+ pb->val = ErlDrvBinary2Binary(dbin);
+ pb->bytes = (byte*) dbin->orig_bytes;
+ pb->flags = 0;
+ OH_OVERHEAD(ohp, dbin->orig_size / sizeof(Eterm));
+ return make_binary(pb);
+ }
+ resp_bufp = dbin->orig_bytes;
+ resp_size = dbin->orig_size;
+ }
+
+ hbin = (ErlHeapBin *) *hpp;
+ *hpp += heap_bin_size(resp_size);
+ ASSERT(resp_size <= ERL_ONHEAP_BIN_LIMIT);
+ hbin->thing_word = header_heap_bin(resp_size);
+ hbin->size = resp_size;
+ sys_memcpy(hbin->data, resp_bufp, resp_size);
+ if (dbin)
+ driver_free_binary(dbin);
+ return make_binary(hbin);
+ }
+
+ /* List result */
+ res = buf_to_intlist(hpp, resp_bufp, resp_size, NIL);
+ if (resp_bufp != pre_alloc_buf)
+ driver_free(resp_bufp);
+ return res;
+}
+
+static int
+port_sig_control(Port *prt,
+ erts_aint32_t state,
+ int op,
+ ErtsProc2PortSigData *sigdp)
+{
+ ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY);
+
+ if (op == ERTS_PROC2PORT_SIG_EXEC) {
+ char resp_buf[ERL_ONHEAP_BIN_LIMIT];
+ ErlDrvSizeT resp_size = sizeof(resp_buf);
+ char *resp_bufp = &resp_buf[0];
+ ErtsPortOpResult res;
+
+ res = call_driver_control(sigdp->caller,
+ prt,
+ sigdp->u.control.command,
+ sigdp->u.control.bufp,
+ sigdp->u.control.size,
+ &resp_bufp,
+ &resp_size);
+
+ if (res == ERTS_PORT_OP_DONE) {
+ Eterm msg;
+ Eterm *hp, *hp_start;
+ ErlHeapFragment *bp;
+ ErlOffHeap *ohp;
+ Process *rp;
+ ErtsProcLocks rp_locks = 0;
+ Uint hsz;
+ int control_flags;
+
+ rp = erts_proc_lookup_raw(sigdp->caller);
+ if (!rp)
+ goto done;
+
+ control_flags = prt->control_flags;
+
+ hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE;
+ hsz += port_control_result_size(control_flags,
+ resp_bufp,
+ &resp_size,
+ &resp_buf[0]);
+
+ hp_start = hp = erts_alloc_message_heap(hsz,
+ &bp,
+ &ohp,
+ rp,
+ &rp_locks);
+
+ msg = write_port_control_result(control_flags,
+ resp_bufp,
+ resp_size,
+ &resp_buf[0],
+ &hp,
+ bp,
+ ohp);
+
+ queue_port_sched_op_reply(rp,
+ &rp_locks,
+ hp_start,
+ hp,
+ hsz,
+ bp,
+ sigdp->ref,
+ msg);
+
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ goto done;
+ }
+ }
+
+ /* failure */
+
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg);
+
+done:
+
+ cleanup_scheduled_control(sigdp->u.control.binp,
+ sigdp->u.control.bufp);
+
+ return ERTS_PORT_REDS_CONTROL;
+}
+
+
+ErtsPortOpResult
+erts_port_control(Process* c_p,
+ Port *prt,
+ unsigned int command,
+ Eterm data,
+ Eterm *retvalp)
+{
+ ErtsPortOpResult res;
+ char *bufp = NULL;
+ ErlDrvSizeT size = 0;
+ int try_call;
+ int tmp_alloced = 0;
+ erts_aint32_t sched_flags;
+ Binary *binp;
+ int copy;
+ ErtsProc2PortSigData *sigdp;
+
+ sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ if (sched_flags & ERTS_PTS_FLG_EXIT)
+ return ERTS_PORT_OP_BADARG;
+
+ try_call = !(sched_flags & ERTS_PTS_FLGS_FORCE_SCHEDULE_OP);
+
+ if (is_binary(data) && binary_bitoffset(data) == 0) {
+ byte *bytep;
ERTS_DECLARE_DUMMY(Uint bitoffs);
ERTS_DECLARE_DUMMY(Uint bitsize);
- ERTS_GET_BINARY_BYTES(iolist, to_port, bitoffs, bitsize);
- to_len = binary_size(iolist);
+ ERTS_GET_BINARY_BYTES(data, bytep, bitoffs, bitsize);
+ bufp = (char *) bytep;
+ size = binary_size(data);
} else {
int r;
- /* Try with an 8KB buffer first (will often be enough I guess). */
- to_len = 8*1024;
- to_port = erts_alloc(ERTS_ALC_T_TMP, to_len);
- must_free = 1;
+ if (!try_call) {
+ if (erts_iolist_size(data, &size))
+ return ERTS_PORT_OP_BADARG;
+ bufp = erts_alloc(ERTS_ALC_T_DRV_CTRL_DATA, size);
+ r = erts_iolist_to_buf(data, bufp, size);
+ ASSERT(r == 0);
+ }
+ else {
+ /* Try with an 8KB buffer first (will often be enough I guess). */
+ size = 8*1024;
+ bufp = erts_alloc(ERTS_ALC_T_TMP, size);
+ tmp_alloced = 1;
+
+ r = erts_iolist_to_buf(data, bufp, size);
+ if (ERTS_IOLIST_TO_BUF_SUCCEEDED(r)) {
+ size -= r;
+ } else {
+ if (r == ERTS_IOLIST_TO_BUF_TYPE_ERROR) { /* Type error */
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ return ERTS_PORT_OP_BADARG;
+ }
+ else {
+ ASSERT(r == ERTS_IOLIST_TO_BUF_OVERFLOW); /* Overflow */
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ if (erts_iolist_size(data, &size))
+ return ERTS_PORT_OP_BADARG; /* Type error */
+ }
+ bufp = erts_alloc(ERTS_ALC_T_TMP, size);
+ r = erts_iolist_to_buf(data, bufp, size);
+ ASSERT(r == 0);
+ }
+ }
+ }
- /*
- * In versions before R10B, we used to reserve random
- * amounts of extra memory. From R10B, we allocate the
- * exact amount.
- */
- r = io_list_to_buf(iolist, (char*) to_port, to_len);
- if (r >= 0) {
- to_len -= r;
- } else if (r == -2) { /* Type error */
- erts_free(ERTS_ALC_T_TMP, (void *) to_port);
- return THE_NON_VALUE;
- } else {
- ASSERT(r == -1); /* Overflow */
- erts_free(ERTS_ALC_T_TMP, (void *) to_port);
- if (erts_iolist_size(iolist, &to_len)) { /* Type error */
- return THE_NON_VALUE;
+ if (try_call) {
+ char resp_buf[ERL_ONHEAP_BIN_LIMIT];
+ char* resp_bufp = &resp_buf[0];
+ ErlDrvSizeT resp_size = sizeof(resp_buf);
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ 0,
+ am_control);
+
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK: {
+ Eterm *hp;
+ Uint hsz;
+ int control_flags;
+
+ res = call_driver_control(c_p->common.id,
+ prt,
+ command,
+ bufp,
+ size,
+ &resp_bufp,
+ &resp_size);
+ finalize_imm_drv_call(&try_call_state);
+ if (tmp_alloced)
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ if (res == ERTS_PORT_OP_BADARG) {
+ return ERTS_PORT_OP_BADARG;
}
- must_free = 1;
- to_port = erts_alloc(ERTS_ALC_T_TMP, to_len);
- r = io_list_to_buf(iolist, (char*) to_port, to_len);
- ASSERT(r == 0);
+
+ control_flags = prt->control_flags;
+
+ hsz = port_control_result_size(control_flags,
+ resp_bufp,
+ &resp_size,
+ &resp_buf[0]);
+ hp = HAlloc(c_p, hsz);
+ *retvalp = write_port_control_result(control_flags,
+ resp_bufp,
+ resp_size,
+ &resp_buf[0],
+ &hp,
+ NULL,
+ &c_p->off_heap);
+ return ERTS_PORT_OP_DONE;
+ }
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ if (tmp_alloced)
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ return ERTS_PORT_OP_BADARG;
+ default:
+ /* Schedule control() call instead... */
+ break;
}
}
- prt->caller = p->id; /* Internal pid */
+ /* Convert data into something that can be scheduled */
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
- ERTS_SMP_CHK_NO_PROC_LOCKS;
+ copy = tmp_alloced;
+
+ binp = NULL;
+
+ if (is_binary(data) && binary_bitoffset(data) == 0) {
+ Eterm *ebinp = binary_val_rel(data, NULL);
+ ASSERT(!tmp_alloced);
+ if (*ebinp == HEADER_SUB_BIN)
+ ebinp = binary_val_rel(((ErlSubBin *) ebinp)->orig, NULL);
+ if (*ebinp != HEADER_PROC_BIN)
+ copy = 1;
+ else {
+ binp = ((ProcBin *) ebinp)->val;
+ ASSERT(bufp < bufp + size);
+ ASSERT(binp->orig_bytes <= bufp
+ && bufp + size <= binp->orig_bytes + binp->orig_size);
+ erts_refc_inc(&binp->refc, 1);
+ }
+ }
+
+ if (copy) {
+ char *old_bufp = bufp;
+ bufp = erts_alloc(ERTS_ALC_T_DRV_CTRL_DATA, size);
+ sys_memcpy(bufp, old_bufp, size);
+ if (tmp_alloced)
+ erts_free(ERTS_ALC_T_TMP, old_bufp);
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_CONTROL;
+ sigdp->u.control.binp = binp;
+ sigdp->u.control.command = command;
+ sigdp->u.control.bufp = bufp;
+ sigdp->u.control.size = size;
+
+ res = erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ retvalp,
+ sigdp,
+ 0,
+ port_sig_control);
+ if (res != ERTS_PORT_OP_SCHEDULED) {
+ cleanup_scheduled_control(binp, bufp);
+ return ERTS_PORT_OP_BADARG;
+ }
+ return res;
+}
+
+static ERTS_INLINE ErtsPortOpResult
+call_driver_call(Eterm caller,
+ Port *prt,
+ unsigned int command,
+ char *bufp,
+ ErlDrvSizeT size,
+ char **resp_bufp,
+ ErlDrvSizeT *from_size,
+ unsigned *ret_flagsp)
+{
+ ErlDrvSSizeT cres;
+
+ if (!prt->drv_ptr->call)
+ return ERTS_PORT_OP_BADARG;
#ifdef USE_VM_PROBES
- if (DTRACE_ENABLED(port_control) || DTRACE_ENABLED(driver_control)) {
- DTRACE_FORMAT_COMMON_PROC_AND_PORT(p, prt);
- DTRACE4(port_control, process_str, port_str, prt->name, command);
- DTRACE5(driver_control, process_str, port_str, prt->name,
- command, to_len);
+ if (DTRACE_ENABLED(driver_call)) {
+ DTRACE_CHARBUF(process_str, DTRACE_TERM_BUF_SIZE);
+ DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE);
+
+ dtrace_pid_str(caller, process_str);
+ dtrace_port_str(prt, port_str);
+ DTRACE5(driver_call, process_str, port_str, prt->name, command, size);
}
#endif
- /*
- * Call the port's control routine.
- */
+ prt->caller = caller;
+ cres = prt->drv_ptr->call((ErlDrvData) prt->drv_data,
+ command,
+ bufp,
+ size,
+ resp_bufp,
+ *from_size,
+ ret_flagsp);
+ prt->caller = NIL;
- port_resp = port_result;
- fpe_was_unmasked = erts_block_fpe();
- n = control((ErlDrvData)prt->drv_data, command, (char*)to_port, to_len,
- &port_resp, sizeof(port_result));
- erts_unblock_fpe(fpe_was_unmasked);
- if (must_free) {
- erts_free(ERTS_ALC_T_TMP, (void *) to_port);
+ if (cres <= 0
+ || ((byte) (*resp_bufp)[0]) != VERSION_MAGIC)
+ return ERTS_PORT_OP_BADARG;
+
+ *from_size = (ErlDrvSizeT) cres;
+
+ return ERTS_PORT_OP_DONE;
+}
+
+
+static
+void cleanup_scheduled_call(char *bufp)
+{
+ if (bufp)
+ erts_free(ERTS_ALC_T_DRV_CALL_DATA, bufp);
+}
+
+static int
+port_sig_call(Port *prt,
+ erts_aint32_t state,
+ int op,
+ ErtsProc2PortSigData *sigdp)
+{
+ char resp_buf[256];
+ ErlDrvSizeT resp_size = sizeof(resp_buf);
+ char *resp_bufp = &resp_buf[0];
+ unsigned ret_flags = 0U;
+
+
+ ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY);
+
+ if (op == ERTS_PROC2PORT_SIG_EXEC) {
+ ErtsPortOpResult res;
+
+ res = call_driver_call(sigdp->caller,
+ prt,
+ sigdp->u.call.command,
+ sigdp->u.call.bufp,
+ sigdp->u.call.size,
+ &resp_bufp,
+ &resp_size,
+ &ret_flags);
+
+ if (res == ERTS_PORT_OP_DONE) {
+ Eterm msg;
+ Eterm *hp;
+ ErlHeapFragment *bp;
+ ErlOffHeap *ohp;
+ Process *rp;
+ ErtsProcLocks rp_locks = 0;
+ Uint hsz;
+
+ rp = erts_proc_lookup_raw(sigdp->caller);
+ if (!rp)
+ goto done;
+
+ hsz = erts_decode_ext_size((byte *) resp_bufp, resp_size);
+ if (hsz >= 0) {
+ Eterm *hp_start;
+ byte *endp;
+
+ hsz += 3; /* ok tuple */
+ hsz += ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE;
+
+ hp_start = hp = erts_alloc_message_heap(hsz,
+ &bp,
+ &ohp,
+ rp,
+ &rp_locks);
+ endp = (byte *) resp_bufp;
+ msg = erts_decode_ext(&hp, ohp, &endp);
+ if (is_value(msg)) {
+ msg = TUPLE2(hp, am_ok, msg);
+ hp += 3;
+
+ queue_port_sched_op_reply(rp,
+ &rp_locks,
+ hp_start,
+ hp,
+ hsz,
+ bp,
+ sigdp->ref,
+ msg);
+
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ goto done;
+ }
+ if (bp)
+ free_message_buffer(bp);
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ }
+ }
}
- prt->caller = NIL;
-#ifdef ERTS_SMP
- if (prt->xports)
- erts_smp_xports_unlock(prt);
- ASSERT(!prt->xports);
-#endif
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
- /*
- * Handle the result.
- */
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg);
+
+done:
+
+ if (resp_bufp != &resp_buf[0] && !(ret_flags & DRIVER_CALL_KEEP_BUFFER))
+ driver_free(resp_bufp);
+
+ cleanup_scheduled_call(sigdp->u.call.bufp);
+
+ return ERTS_PORT_REDS_CALL;
+}
+
+
+ErtsPortOpResult
+erts_port_call(Process* c_p,
+ Port *prt,
+ unsigned int command,
+ Eterm data,
+ Eterm *retvalp)
+{
+ ErtsPortOpResult res;
+ char input_buf[256];
+ char *bufp;
+ byte *endp;
+ ErlDrvSizeT size;
+ int try_call;
+ erts_aint32_t sched_flags;
+ ErtsProc2PortSigData *sigdp;
- if (n < 0) {
- return THE_NON_VALUE;
+ sched_flags = erts_smp_atomic32_read_nob(&prt->sched.flags);
+ if (sched_flags & ERTS_PTS_FLG_EXIT) {
+ return ERTS_PORT_OP_BADARG;
}
- if ((prt->control_flags & PORT_CONTROL_FLAG_BINARY) == 0) { /* List result */
- Eterm ret;
- Eterm* hp = HAlloc(p, 2*n);
- ret = buf_to_intlist(&hp, port_resp, n, NIL);
- if (port_resp != port_result) {
- driver_free(port_resp);
+ try_call = !(sched_flags & ERTS_PTS_FLGS_FORCE_SCHEDULE_OP);
+
+ size = erts_encode_ext_size(data);
+
+ if (!try_call)
+ bufp = erts_alloc(ERTS_ALC_T_DRV_CALL_DATA, size);
+ else if (size <= sizeof(input_buf))
+ bufp = &input_buf[0];
+ else
+ bufp = erts_alloc(ERTS_ALC_T_TMP, size);
+
+ endp = (byte *) bufp;
+ erts_encode_ext(data, &endp);
+
+ if (endp - (byte *) bufp > size)
+ ERTS_INTERNAL_ERROR("erts_internal:port_call() - Buffer overflow");
+
+ size = endp - (byte *) bufp;
+
+ if (try_call) {
+ char resp_buf[255];
+ char* resp_bufp = &resp_buf[0];
+ ErlDrvSizeT resp_size = sizeof(resp_buf);
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ 0,
+ am_call);
+
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK: {
+ Eterm *hp, *hp_end;
+ Uint hsz;
+ unsigned ret_flags = 0U;
+ Eterm term;
+
+ res = call_driver_call(c_p->common.id,
+ prt,
+ command,
+ bufp,
+ size,
+ &resp_bufp,
+ &resp_size,
+ &ret_flags);
+
+ finalize_imm_drv_call(&try_call_state);
+ if (bufp != &input_buf[0])
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ if (res == ERTS_PORT_OP_BADARG)
+ return ERTS_PORT_OP_BADARG;
+ hsz = erts_decode_ext_size((byte *) resp_bufp, resp_size);
+ if (hsz < 0)
+ return ERTS_PORT_OP_BADARG;
+ hsz += 3;
+ hp = HAlloc(c_p, hsz);
+ hp_end = hp + hsz;
+ endp = (byte *) resp_bufp;
+ term = erts_decode_ext(&hp, &MSO(c_p), &endp);
+ if (term == THE_NON_VALUE)
+ return ERTS_PORT_OP_BADARG;
+ *retvalp = TUPLE2(hp, am_ok, term);
+ hp += 3;
+ HRelease(c_p, hp_end, hp);
+ if (resp_buf != &resp_buf[0]
+ && !(ret_flags & DRIVER_CALL_KEEP_BUFFER))
+ driver_free(resp_buf);
+ return ERTS_PORT_OP_DONE;
}
- return ret;
- }
- else if (port_resp == NULL) {
- return NIL;
- }
- else { /* Binary result */
- ErlDrvBinary *dbin;
- ErlHeapBin *hbin;
- if (port_resp != port_result) {
- dbin = (ErlDrvBinary *) port_resp;
- if (dbin->orig_size > ERL_ONHEAP_BIN_LIMIT) {
- ProcBin* pb = (ProcBin *) HAlloc(p, PROC_BIN_SIZE);
- pb->thing_word = HEADER_PROC_BIN;
- pb->size = dbin->orig_size;
- pb->next = MSO(p).first;
- MSO(p).first = (struct erl_off_heap_header*)pb;
- pb->val = ErlDrvBinary2Binary(dbin);
- pb->bytes = (byte*) dbin->orig_bytes;
- pb->flags = 0;
- OH_OVERHEAD(&(MSO(p)), dbin->orig_size / sizeof(Eterm));
- return make_binary(pb);
- }
- port_resp = dbin->orig_bytes;
- n = dbin->orig_size;
- } else {
- dbin = NULL;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ if (bufp != &input_buf[0])
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ return ERTS_PORT_OP_BADARG;
+ default:
+ /* Schedule call() call instead... */
+ break;
}
- hbin = (ErlHeapBin*) HAlloc(p, heap_bin_size(n));
- ASSERT(n <= ERL_ONHEAP_BIN_LIMIT);
- hbin->thing_word = header_heap_bin(n);
- hbin->size = n;
- sys_memcpy(hbin->data, port_resp, n);
- if (dbin != NULL) {
- driver_free_binary(dbin);
+ }
+
+ /* Convert data into something that can be scheduled */
+
+ if (bufp == &input_buf[0] || try_call) {
+ char *new_bufp = erts_alloc(ERTS_ALC_T_DRV_CALL_DATA, size);
+ sys_memcpy(new_bufp, bufp, size);
+ if (bufp != &input_buf[0])
+ erts_free(ERTS_ALC_T_TMP, bufp);
+ bufp = new_bufp;
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_CALL;
+ sigdp->u.call.command = command;
+ sigdp->u.call.bufp = bufp;
+ sigdp->u.call.size = size;
+
+ res = erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ retvalp,
+ sigdp,
+ 0,
+ port_sig_call);
+ if (res != ERTS_PORT_OP_SCHEDULED) {
+ cleanup_scheduled_call(bufp);
+ return ERTS_PORT_OP_BADARG;
+ }
+ return res;
+}
+
+static Eterm
+make_port_info_term(Eterm **hpp_start,
+ Eterm **hpp,
+ Uint *hszp,
+ ErlHeapFragment **bpp,
+ Port *prt,
+ Eterm item)
+{
+ ErlOffHeap *ohp;
+
+ if (is_value(item)) {
+ if (erts_bld_port_info(NULL, NULL, hszp, prt, item) == am_false)
+ return THE_NON_VALUE;
+ if (*hszp) {
+ *bpp = new_message_buffer(*hszp);
+ *hpp_start = *hpp = (*bpp)->mem;
+ ohp = &(*bpp)->off_heap;
}
- return make_binary(hbin);
+ else {
+ *bpp = NULL;
+ *hpp_start = *hpp = NULL;
+ ohp = NULL;
+ }
+ return erts_bld_port_info(hpp, ohp, NULL, prt, item);
+ }
+ else {
+ int i;
+ int len;
+ int start;
+ static Eterm item[] = ERTS_PORT_INFO_1_ITEMS;
+ static Eterm value[sizeof(item)/sizeof(item[0])];
+
+ start = 0;
+ len = sizeof(item)/sizeof(item[0]);
+
+ for (i = start; i < sizeof(item)/sizeof(item[0]); i++) {
+ ASSERT(is_atom(item[i]));
+ value[i] = erts_bld_port_info(NULL, NULL, hszp, prt, item[i]);
+ }
+
+ if (value[0] == am_undefined) {
+ start++;
+ len--;
+ }
+
+ erts_bld_list(NULL, hszp, len, &value[start]);
+
+ *bpp = new_message_buffer(*hszp);
+ *hpp_start = *hpp = (*bpp)->mem;
+ ohp = &(*bpp)->off_heap;
+
+ for (i = start; i < sizeof(item)/sizeof(item[0]); i++)
+ value[i] = erts_bld_port_info(hpp, ohp, NULL, prt, item[i]);
+
+ return erts_bld_list(hpp, NULL, len, &value[start]);
+ }
+}
+
+static int
+port_sig_info(Port *prt,
+ erts_aint32_t state,
+ int op,
+ ErtsProc2PortSigData *sigdp)
+{
+ ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY);
+ if (op != ERTS_PROC2PORT_SIG_EXEC)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_undefined);
+ else {
+ Eterm *hp, *hp_start;
+ Uint hsz;
+ ErlHeapFragment *bp;
+ Eterm value;
+ Process *rp;
+ ErtsProcLocks rp_locks = 0;
+
+ rp = erts_proc_lookup_raw(sigdp->caller);
+ if (!rp)
+ return ERTS_PORT_REDS_INFO;
+
+ hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE;
+ value = make_port_info_term(&hp_start,
+ &hp,
+ &hsz,
+ &bp,
+ prt,
+ sigdp->u.info.item);
+ if (is_value(value)) {
+ queue_port_sched_op_reply(rp,
+ &rp_locks,
+ hp_start,
+ hp,
+ hsz,
+ bp,
+ sigdp->ref,
+ value);
+ }
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ }
+ return ERTS_PORT_REDS_INFO;
+}
+
+ErtsPortOpResult
+erts_port_info(Process* c_p,
+ Port *prt,
+ Eterm item,
+ Eterm *retvalp)
+{
+ ErtsProc2PortSigData *sigdp;
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ 0,
+ am_info);
+
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK: {
+ Eterm *hp, *hp_start;
+ ErlHeapFragment *bp;
+ Uint hsz = 0;
+ Eterm value = make_port_info_term(&hp_start, &hp, &hsz, &bp, prt, item);
+ finalize_imm_drv_call(&try_call_state);
+ if (is_non_value(value))
+ return ERTS_PORT_OP_BADARG;
+ else if (is_immed(value))
+ *retvalp = value;
+ else {
+ Uint used_h_size = hp - hp_start;
+ hp = HAlloc(c_p, used_h_size);
+ *retvalp = copy_struct(value, used_h_size, &hp, &MSO(c_p));
+ free_message_buffer(bp);
+ }
+ return ERTS_PORT_OP_DONE;
+ }
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS:
+ case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK:
+ /* Schedule call instead... */
+ break;
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_INFO;
+ sigdp->u.info.item = item;
+
+ return erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ retvalp,
+ sigdp,
+ 0,
+ port_sig_info);
+}
+
+static int
+port_sig_set_data(Port *prt,
+ erts_aint32_t state,
+ int op,
+ ErtsProc2PortSigData *sigdp)
+{
+ ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY);
+
+ if (op == ERTS_PROC2PORT_SIG_EXEC) {
+ if (prt->bp)
+ free_message_buffer(prt->bp);
+ prt->bp = sigdp->u.set_data.bp;
+ prt->data = sigdp->u.set_data.data;
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_true);
+ }
+ else {
+ if (sigdp->u.set_data.bp)
+ free_message_buffer(sigdp->u.set_data.bp);
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg);
+ }
+ return ERTS_PORT_REDS_SET_DATA;
+}
+
+ErtsPortOpResult
+erts_port_set_data(Process* c_p,
+ Port *prt,
+ Eterm data,
+ Eterm *refp)
+{
+ ErtsPortOpResult res;
+ Eterm set_data;
+ ErlHeapFragment *bp;
+ ErtsProc2PortSigData *sigdp;
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ !refp,
+ am_set_data);
+
+ if (is_immed(data)) {
+ set_data = data;
+ bp = NULL;
}
+ else {
+ Eterm *hp;
+ Uint sz = size_object(data);
+ bp = new_message_buffer(sz);
+ hp = bp->mem;
+ set_data = copy_struct(data, sz, &hp, &bp->off_heap);
+ }
+
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK:
+ if (prt->bp)
+ free_message_buffer(prt->bp);
+ prt->bp = bp;
+ prt->data = set_data;
+ finalize_imm_drv_call(&try_call_state);
+ return ERTS_PORT_OP_DONE;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS:
+ case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK:
+ /* Schedule call instead... */
+ break;
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_SET_DATA;
+ sigdp->u.set_data.data = set_data;
+ sigdp->u.set_data.bp = bp;
+
+ res = erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ refp,
+ sigdp,
+ 0,
+ port_sig_set_data);
+ if (res != ERTS_PORT_OP_SCHEDULED && bp)
+ free_message_buffer(bp);
+ return res;
+}
+
+static int
+port_sig_get_data(Port *prt,
+ erts_aint32_t state,
+ int op,
+ ErtsProc2PortSigData *sigdp)
+{
+ ASSERT(sigdp->flags & ERTS_P2P_SIG_DATA_FLG_REPLY);
+ if (op != ERTS_PROC2PORT_SIG_EXEC)
+ port_sched_op_reply(sigdp->caller, sigdp->ref, am_badarg);
+ else {
+ Process *rp;
+ ErtsProcLocks rp_locks = 0;
+
+ rp = erts_proc_lookup_raw(sigdp->caller);
+ if (rp) {
+ Uint hsz;
+ Eterm *hp, *hp_start;
+ Eterm data, msg;
+ ErlHeapFragment *bp;
+ ErlOffHeap *ohp;
+
+ hsz = ERTS_QUEUE_PORT_SCHED_OP_REPLY_SIZE;
+ hsz += 3;
+ if (prt->bp)
+ hsz += prt->bp->used_size;
+
+ hp_start = hp = erts_alloc_message_heap(hsz,
+ &bp,
+ &ohp,
+ rp,
+ &rp_locks);
+
+ if (is_immed(prt->data))
+ data = prt->data;
+ else
+ data = copy_struct(prt->data,
+ prt->bp->used_size,
+ &hp,
+ &bp->off_heap);
+
+
+
+ msg = TUPLE2(hp, am_ok, data);
+ hp += 3;
+
+ queue_port_sched_op_reply(rp,
+ &rp_locks,
+ hp_start,
+ hp,
+ hsz,
+ bp,
+ sigdp->ref,
+ msg);
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ }
+ }
+ return ERTS_PORT_REDS_GET_DATA;
+}
+
+ErtsPortOpResult
+erts_port_get_data(Process* c_p,
+ Port *prt,
+ Eterm *retvalp)
+{
+ ErtsProc2PortSigData *sigdp;
+ ErtsTryImmDrvCallResult try_call_res;
+ ErtsTryImmDrvCallState try_call_state
+ = ERTS_INIT_TRY_IMM_DRV_CALL_STATE(
+ c_p,
+ prt,
+ ERTS_PORT_SFLGS_INVALID_LOOKUP,
+ 0,
+ 0,
+ am_get_data);
+
+ try_call_res = try_imm_drv_call(&try_call_state);
+ switch (try_call_res) {
+ case ERTS_TRY_IMM_DRV_CALL_OK: {
+ Eterm *hp;
+ Eterm data;
+ ErlHeapFragment *bp;
+ Uint sz;
+ if (is_immed(prt->data)) {
+ bp = NULL;
+ data = prt->data;
+ }
+ else {
+ bp = new_message_buffer(prt->bp->used_size);
+ data = copy_struct(prt->data,
+ prt->bp->used_size,
+ &hp,
+ &bp->off_heap);
+ }
+ finalize_imm_drv_call(&try_call_state);
+ if (is_immed(data))
+ sz = 0;
+ else
+ sz = bp->used_size;
+
+ hp = HAlloc(c_p, sz + 3);
+ if (is_not_immed(data)) {
+ data = copy_struct(data, bp->used_size, &hp, &MSO(c_p));
+ free_message_buffer(bp);
+ }
+ *retvalp = TUPLE2(hp, am_ok, data);
+ return ERTS_PORT_OP_DONE;
+ }
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_PORT:
+ return ERTS_PORT_OP_DROPPED;
+ case ERTS_TRY_IMM_DRV_CALL_INVALID_SCHED_FLAGS:
+ case ERTS_TRY_IMM_DRV_CALL_BUSY_LOCK:
+ /* Schedule call instead... */
+ break;
+ }
+
+ sigdp = erts_port_task_alloc_p2p_sig_data();
+ sigdp->flags = ERTS_P2P_SIG_TYPE_GET_DATA;
+
+ return erts_schedule_proc2port_signal(c_p,
+ prt,
+ c_p->common.id,
+ retvalp,
+ sigdp,
+ 0,
+ port_sig_get_data);
}
typedef struct {
@@ -2470,39 +4681,39 @@ static void prt_one_lnk(ErtsLink *lnk, void *vprtd)
}
void
-print_port_info(int to, void *arg, int i)
+print_port_info(Port *p, int to, void *arg)
{
- Port* p = &erts_port[i];
+ erts_aint32_t state = erts_atomic32_read_nob(&p->state);
- if (p->status & ERTS_PORT_SFLGS_DEAD)
+ if (state & ERTS_PORT_SFLGS_DEAD)
return;
- erts_print(to, arg, "=port:%T\n", p->id);
- erts_print(to, arg, "Slot: %d\n", i);
- if (p->status & ERTS_PORT_SFLG_CONNECTED) {
- erts_print(to, arg, "Connected: %T", p->connected);
+ erts_print(to, arg, "=port:%T\n", p->common.id);
+ erts_print(to, arg, "Slot: %d\n", internal_port_index(p->common.id));
+ if (state & ERTS_PORT_SFLG_CONNECTED) {
+ erts_print(to, arg, "Connected: %T", ERTS_PORT_GET_CONNECTED(p));
erts_print(to, arg, "\n");
}
- if (p->nlinks != NULL) {
+ if (ERTS_P_LINKS(p)) {
prt_one_lnk_data prtd;
prtd.to = to;
prtd.arg = arg;
erts_print(to, arg, "Links: ");
- erts_doforall_links(p->nlinks, &prt_one_lnk, &prtd);
+ erts_doforall_links(ERTS_P_LINKS(p), &prt_one_lnk, &prtd);
erts_print(to, arg, "\n");
}
- if (p->monitors != NULL) {
+ if (ERTS_P_MONITORS(p)) {
prt_one_lnk_data prtd;
prtd.to = to;
prtd.arg = arg;
erts_print(to, arg, "Monitors: ");
- erts_doforall_monitors(p->monitors, &prt_one_monitor, &prtd);
+ erts_doforall_monitors(ERTS_P_MONITORS(p), &prt_one_monitor, &prtd);
erts_print(to, arg, "\n");
}
- if (p->reg != NULL)
- erts_print(to, arg, "Registered as: %T\n", p->reg->name);
+ if (p->common.u.alive.reg != NULL)
+ erts_print(to, arg, "Registered as: %T\n", p->common.u.alive.reg->name);
if (p->drv_ptr == &fd_driver) {
erts_print(to, arg, "Port is UNIX fd not opened by emulator: %s\n", p->name);
@@ -2516,109 +4727,143 @@ print_port_info(int to, void *arg, int i)
}
void
-set_busy_port(ErlDrvPort port_num, int on)
+set_busy_port(ErlDrvPort dprt, int on)
{
+ Port *prt;
+ erts_aint32_t flags;
+
#ifdef USE_VM_PROBES
DTRACE_CHARBUF(port_str, 16);
#endif
ERTS_SMP_CHK_NO_PROC_LOCKS;
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[port_num]));
+ prt = erts_drvport2port_raw(dprt);
+ if (!prt)
+ return;
if (on) {
- erts_port_status_bor_set(&erts_port[port_num],
- ERTS_PORT_SFLG_PORT_BUSY);
+ flags = erts_smp_atomic32_read_bor_acqb(&prt->sched.flags,
+ ERTS_PTS_FLG_BUSY_PORT);
+ if (flags & ERTS_PTS_FLG_BUSY_PORT)
+ return; /* Already busy */
+
+ if (flags & ERTS_PTS_FLG_HAVE_NS_TASKS)
+ erts_port_task_abort_nosuspend_tasks(prt);
+
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(port_busy)) {
erts_snprintf(port_str, sizeof(port_str),
- "%T", erts_port[port_num].id);
+ "%T", prt->common.id);
DTRACE1(port_busy, port_str);
}
#endif
} else {
- ErtsProcList* plp = erts_port[port_num].suspended;
- erts_port_status_band_set(&erts_port[port_num],
- ~ERTS_PORT_SFLG_PORT_BUSY);
- erts_port[port_num].suspended = NULL;
+ flags = erts_smp_atomic32_read_band_acqb(&prt->sched.flags,
+ ~ERTS_PTS_FLG_BUSY_PORT);
+ if (!(flags & ERTS_PTS_FLG_BUSY_PORT))
+ return; /* Already non-busy */
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(port_not_busy)) {
erts_snprintf(port_str, sizeof(port_str),
- "%T", erts_port[port_num].id);
+ "%T", prt->common.id);
DTRACE1(port_not_busy, port_str);
}
#endif
- if (erts_port[port_num].dist_entry) {
+ if (prt->dist_entry) {
/*
* Processes suspended on distribution ports are
* normally queued on the dist entry.
*/
- erts_dist_port_not_busy(&erts_port[port_num]);
+ erts_dist_port_not_busy(prt);
}
- /*
- * Resume, in a round-robin fashion, all processes waiting on the port.
- *
- * This version submitted by Tony Rogvall. The earlier version used
- * to resume the processes in order, which caused starvation of all but
- * the first process.
- */
+ if (!(flags & ERTS_PTS_FLG_BUSY_PORT_Q))
+ erts_port_resume_procs(prt);
+ }
+}
+
+void
+erts_port_resume_procs(Port *prt)
+{
+ /*
+ * Resume, in a round-robin fashion, all processes waiting on the port.
+ *
+ * This version submitted by Tony Rogvall. The earlier version used
+ * to resume the processes in order, which caused starvation of all but
+ * the first process.
+ */
+ ErtsProcList *plp;
+
+ erts_port_task_sched_lock(&prt->sched);
+ plp = prt->suspended;
+ prt->suspended = NULL;
+ erts_port_task_sched_unlock(&prt->sched);
+
+ if (erts_proclist_fetch(&plp, NULL)) {
- if (plp) {
#ifdef USE_VM_PROBES
- /*
- * Hrm, for blocked dist ports, plp always seems to be NULL.
- * That's not so fun.
- * Well, another way to get the same info is using a D
- * script to correlate an earlier process-port_blocked+pid
- * event with a later process-scheduled event. That's
- * subject to the multi-CPU races with how events are
- * handled, but hey, that way works most of the time.
- */
- if (DTRACE_ENABLED(process_port_unblocked)) {
- DTRACE_CHARBUF(pid_str, 16);
- ErtsProcList* plp2 = plp;
-
- erts_snprintf(port_str, sizeof(port_str),
- "%T", erts_port[port_num]);
- while (plp2 != NULL) {
- erts_snprintf(pid_str, sizeof(pid_str), "%T", plp2->pid);
- DTRACE2(process_port_unblocked, pid_str, port_str);
- }
- }
-#endif
- /* First proc should be resumed last */
- if (plp->next) {
- erts_resume_processes(plp->next);
- plp->next = NULL;
+ /*
+ * Hrm, for blocked dist ports, plp always seems to be NULL.
+ * That's not so fun.
+ * Well, another way to get the same info is using a D
+ * script to correlate an earlier process-port_blocked+pid
+ * event with a later process-scheduled event. That's
+ * subject to the multi-CPU races with how events are
+ * handled, but hey, that way works most of the time.
+ */
+ if (DTRACE_ENABLED(process_port_unblocked)) {
+ DTRACE_CHARBUF(port_str, 16);
+ DTRACE_CHARBUF(pid_str, 16);
+ ErtsProcList* plp2 = plp;
+
+ erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id);
+ while (plp2 != NULL) {
+ erts_snprintf(pid_str, sizeof(pid_str), "%T", plp2->pid);
+ DTRACE2(process_port_unblocked, pid_str, port_str);
}
- erts_resume_processes(plp);
- }
+ }
+#endif
+
+ /* First proc should be resumed last */
+ if (plp->next) {
+ plp->next->prev = NULL;
+ erts_resume_processes(plp->next);
+ plp->next = NULL;
+ }
+ erts_resume_processes(plp);
}
}
void set_port_control_flags(ErlDrvPort port_num, int flags)
{
-
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(&erts_port[port_num]));
-
- erts_port[port_num].control_flags = flags;
+ Port *prt = erts_drvport2port_raw(port_num);
+ if (prt)
+ prt->control_flags = flags;
}
-int get_port_flags(ErlDrvPort ix) {
- Port* prt = erts_drvport2port(ix);
+int get_port_flags(ErlDrvPort ix)
+{
+ int flags;
+ Port *prt;
+ erts_aint32_t state;
+
+ prt = erts_drvport2port(ix, &state);
+ if (!prt)
+ return 0;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- if (prt == NULL)
- return 0;
+ flags = 0;
+ if (state & ERTS_PORT_SFLG_BINARY_IO)
+ flags |= PORT_FLAG_BINARY;
+ if (state & ERTS_PORT_SFLG_LINEBUF_IO)
+ flags |= PORT_FLAG_LINE;
- return (prt->status & ERTS_PORT_SFLG_BINARY_IO ? PORT_FLAG_BINARY : 0)
- | (prt->status & ERTS_PORT_SFLG_LINEBUF_IO ? PORT_FLAG_LINE : 0);
+ return flags;
}
-
void erts_raw_port_command(Port* p, byte* buf, Uint len)
{
int fpe_was_unmasked;
@@ -2655,25 +4900,18 @@ int async_ready(Port *p, void* data)
if (p) {
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p));
- ASSERT(!(p->status & ERTS_PORT_SFLGS_DEAD));
if (p->drv_ptr->ready_async != NULL) {
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(driver_ready_async)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(p->connected, p)
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(ERTS_PORT_GET_CONNECTED(p), p)
DTRACE3(driver_ready_async, process_str, port_str, p->name);
}
#endif
(*p->drv_ptr->ready_async)((ErlDrvData)p->drv_data, data);
need_free = 0;
-#ifdef ERTS_SMP
- if (p->xports)
- erts_smp_xports_unlock(p);
- ASSERT(!p->xports);
-#endif
- }
- if ((p->status & ERTS_PORT_SFLG_CLOSING) && is_port_ioq_empty(p)) {
- terminate_port(p);
+
}
+ erts_port_driver_callback_epilogue(p, NULL);
}
return need_free;
}
@@ -2681,12 +4919,12 @@ int async_ready(Port *p, void* data)
static void
report_missing_drv_callback(Port *p, char *drv_type, char *callback)
{
- ErtsPortNames *pnp = erts_get_port_names(p->id);
+ ErtsPortNames *pnp = erts_get_port_names(p->common.id);
char *unknown = "<unknown>";
char *drv_name = pnp->driver_name ? pnp->driver_name : unknown;
char *prt_name = pnp->name ? pnp->name : unknown;
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
- erts_dsprintf(dsbufp, "%T: %s driver '%s' ", p->id, drv_type, drv_name);
+ erts_dsprintf(dsbufp, "%T: %s driver '%s' ", p->common.id, drv_type, drv_name);
if (sys_strcmp(drv_name, prt_name) != 0)
erts_dsprintf(dsbufp, "(%s) ", prt_name);
erts_dsprintf(dsbufp, "does not implement the %s callback!\n", callback);
@@ -2701,7 +4939,7 @@ erts_stale_drv_select(Eterm port,
int deselect)
{
char *type;
- ErlDrvPort drv_port = internal_port_index(port);
+ ErlDrvPort drv_port = (ErlDrvPort) erts_port_lookup_raw(port);
ErtsPortNames *pnp = erts_get_port_names(port);
erts_dsprintf_buf_t *dsbufp;
@@ -2741,16 +4979,16 @@ erts_stale_drv_select(Eterm port,
ErtsPortNames *
erts_get_port_names(Eterm id)
{
+ Port *prt = erts_port_lookup_raw(id);
ErtsPortNames *pnp;
ASSERT(is_nil(id) || is_internal_port(id));
-
- if (is_not_internal_port(id)) {
+
+ if (!prt) {
pnp = erts_alloc(ERTS_ALC_T_PORT_NAMES, sizeof(ErtsPortNames));
pnp->name = NULL;
pnp->driver_name = NULL;
}
else {
- Port* prt = &erts_port[internal_port_index(id)];
int do_realloc = 1;
int len = -1;
size_t pnp_len = sizeof(ErtsPortNames);
@@ -2766,17 +5004,10 @@ erts_get_port_names(Eterm id)
pnp_len = sizeof(ErtsPortNames) + len;
pnp = erts_alloc(ERTS_ALC_T_PORT_NAMES, pnp_len);
}
- erts_smp_port_state_lock(prt);
- if (id != prt->id) {
- len = nlen = 0;
- name = driver_name = NULL;
- }
- else {
- name = prt->name;
- len = nlen = name ? sys_strlen(name) + 1 : 0;
- driver_name = (prt->drv_ptr ? prt->drv_ptr->name : NULL);
- len += driver_name ? sys_strlen(driver_name) + 1 : 0;
- }
+ name = prt->name;
+ len = nlen = name ? sys_strlen(name) + 1 : 0;
+ driver_name = (prt->drv_ptr ? prt->drv_ptr->name : NULL);
+ len += driver_name ? sys_strlen(driver_name) + 1 : 0;
if (len <= pnp_len - sizeof(ErtsPortNames)) {
if (!name)
pnp->name = NULL;
@@ -2794,7 +5025,6 @@ erts_get_port_names(Eterm id)
}
do_realloc = 0;
}
- erts_smp_port_state_unlock(prt);
} while (do_realloc);
}
return pnp;
@@ -2819,11 +5049,9 @@ static void schedule_port_timeout(Port *p)
* /Rickard
*/
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(p));
- (void) erts_port_task_schedule(p->id,
- &p->timeout_task,
- ERTS_PORT_TASK_TIMEOUT,
- (ErlDrvEvent) -1,
- NULL);
+ erts_port_task_schedule(p->common.id,
+ &p->timeout_task,
+ ERTS_PORT_TASK_TIMEOUT);
}
ErlDrvTermData driver_mk_term_nil(void)
@@ -2831,9 +5059,9 @@ ErlDrvTermData driver_mk_term_nil(void)
return driver_term_nil;
}
-void driver_report_exit(int ix, int status)
+void driver_report_exit(ErlDrvPort ix, int status)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
Eterm* hp;
Eterm tuple;
Process *rp;
@@ -2841,13 +5069,17 @@ void driver_report_exit(int ix, int status)
ErlHeapFragment *bp = NULL;
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- pid = prt->connected;
+ pid = ERTS_PORT_GET_CONNECTED(prt);
ASSERT(is_internal_pid(pid));
- rp = erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+
+ rp = (scheduler
+ ? erts_proc_lookup(pid)
+ : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (!rp)
return;
@@ -2855,7 +5087,7 @@ void driver_report_exit(int ix, int status)
tuple = TUPLE2(hp, am_exit_status, make_small(status));
hp += 3;
- tuple = TUPLE2(hp, prt->id, tuple);
+ tuple = TUPLE2(hp, prt->common.id, tuple);
erts_queue_message(rp, &rp_locks, bp, tuple, am_undefined
#ifdef USE_VM_PROBES
@@ -2864,29 +5096,8 @@ void driver_report_exit(int ix, int status)
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
-}
-
-
-static ERTS_INLINE int
-deliver_term_check_port(ErlDrvPort drvport)
-{
- int res;
- int ix = (int) drvport;
- if (ix < 0 || erts_max_ports <= ix)
- res = -1; /* invalid */
- else {
- Port* prt = &erts_port[ix];
- erts_smp_port_state_lock(prt);
- if (!(prt->status & ERTS_PORT_SFLGS_INVALID_LOOKUP))
- res = 1; /* ok */
- else if (prt->status & ERTS_PORT_SFLG_CLOSING)
- res = 0; /* closing */
- else
- res = -1; /* invalid (dead) */
- erts_smp_port_state_unlock(prt);
- }
- return res;
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
#define ERTS_B2T_STATES_DEF_STATES_SZ 5
@@ -2976,10 +5187,7 @@ cleanup_b2t_states(struct b2t_states__ *b2tsp)
*/
static int
-driver_deliver_term(ErlDrvPort port,
- Eterm to,
- ErlDrvTermData* data,
- int len)
+driver_deliver_term(Eterm to, ErlDrvTermData* data, int len)
{
#define ERTS_DDT_FAIL do { res = -1; goto done; } while (0)
Uint need = 0;
@@ -2995,6 +5203,7 @@ driver_deliver_term(ErlDrvPort port,
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
struct b2t_states__ b2t;
+ int scheduler = 1; /* Silence erroneous warning... */
init_b2t_states(&b2t);
@@ -3180,13 +5389,16 @@ driver_deliver_term(ErlDrvPort port,
b2t.ix = 0;
/*
- * The term is OK. Go ahead and validate the port and process.
+ * The term is OK. Go ahead and validate the process.
*/
- res = deliver_term_check_port(port);
- if (res <= 0)
- goto done;
- rp = erts_pid2proc_opt(NULL, 0, to, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC);
+ /*
+ * Increase refc on proc if done from a non-scheduler thread.
+ */
+ scheduler = erts_get_scheduler_id() != 0;
+ rp = (scheduler
+ ? erts_proc_lookup(to)
+ : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (!rp) {
res = 0;
goto done;
@@ -3438,7 +5650,8 @@ driver_deliver_term(ErlDrvPort port,
if (rp) {
if (rp_locks)
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
#endif
cleanup_b2t_states(&b2t);
@@ -3447,25 +5660,115 @@ driver_deliver_term(ErlDrvPort port,
#undef ERTS_DDT_FAIL
}
+static ERTS_INLINE int
+deliver_term_check_port(ErlDrvTermData port_id, Eterm *connected_p)
+{
+#ifdef ERTS_SMP
+ ErtsThrPrgrDelayHandle dhndl = erts_thr_progress_unmanaged_delay();
+#endif
+ Port *prt = erts_port_lookup_raw((Eterm) port_id);
+ erts_aint32_t state = erts_atomic32_read_nob(&prt->state);
+ if (connected_p) {
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ ETHR_MEMBAR(ETHR_LoadLoad);
+#endif
+ *connected_p = ERTS_PORT_GET_CONNECTED(prt);
+ }
+#ifdef ERTS_SMP
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED) {
+ erts_thr_progress_unmanaged_continue(dhndl);
+ ETHR_MEMBAR(ETHR_LoadLoad|ETHR_LoadStore);
+ }
+#endif
+ ERTS_SMP_LC_ASSERT(dhndl == ERTS_THR_PRGR_DHANDLE_MANAGED
+ ? erts_lc_is_port_locked(prt)
+ : !erts_lc_is_port_locked(prt));
+ return ((state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
+ ? -1
+ : ((state & ERTS_PORT_SFLG_CLOSING) ? 0 : 1));
+}
+
+int erl_drv_output_term(ErlDrvTermData port_id, ErlDrvTermData* data, int len)
+{
+ /* May be called from arbitrary thread */
+ Eterm connected;
+ int res = deliver_term_check_port(port_id, &connected);
+ if (res <= 0)
+ return res;
+ return driver_deliver_term(connected, data, len);
+}
+/*
+ * driver_output_term() is deprecated, and has been scheduled for
+ * removal in OTP-R17. It is replaced by erl_drv_output_term()
+ * above.
+ */
int
-driver_output_term(ErlDrvPort ix, ErlDrvTermData* data, int len)
+driver_output_term(ErlDrvPort drvport, ErlDrvTermData* data, int len)
{
- Port* prt = erts_drvport2port(ix);
+ erts_aint32_t state;
+ Port* prt;
ERTS_SMP_CHK_NO_PROC_LOCKS;
+ /* NOTE! It *not* safe to access 'drvport' from unmanaged threads. */
+ prt = erts_drvport2port(drvport, &state);
+ if (!prt)
+ return -1; /* invalid (dead) */
+ ERTS_SMP_CHK_NO_PROC_LOCKS;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
-
- if (prt == NULL)
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
return -1;
- return driver_deliver_term(ix, prt->connected, data, len);
+ else if (state & ERTS_PORT_SFLG_CLOSING)
+ return 0;
+
+ return driver_deliver_term(ERTS_PORT_GET_CONNECTED(prt), data, len);
}
+int erl_drv_send_term(ErlDrvTermData port_id,
+ ErlDrvTermData to,
+ ErlDrvTermData* data,
+ int len)
+{
+ /* May be called from arbitrary thread */
+ int res = deliver_term_check_port(port_id, NULL);
+ if (res <= 0)
+ return res;
+ return driver_deliver_term(to, data, len);
+}
+/*
+ * driver_send_term() is deprecated, and has been scheduled for
+ * removal in OTP-R17. It is replaced by erl_drv_send_term() above.
+ */
int
-driver_send_term(ErlDrvPort ix, ErlDrvTermData to, ErlDrvTermData* data, int len)
+driver_send_term(ErlDrvPort drvport,
+ ErlDrvTermData to,
+ ErlDrvTermData* data,
+ int len)
{
- return driver_deliver_term(ix, to, data, len);
+ /*
+ * NOTE! It is *not* safe to access the 'drvport' parameter
+ * from unmanaged threads. Also note that it is impossible
+ * to make this access safe without using a less efficient
+ * internal data representation for ErlDrvPort.
+ */
+ ERTS_SMP_CHK_NO_PROC_LOCKS;
+#ifdef ERTS_SMP
+ if (erts_thr_progress_is_managed_thread())
+#endif
+ {
+ erts_aint32_t state;
+ Port* prt = erts_drvport2port(drvport, &state);
+ if (!prt)
+ return -1; /* invalid (dead) */
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP)
+ return -1;
+ else if (state & ERTS_PORT_SFLG_CLOSING)
+ return 0;
+ }
+ return driver_deliver_term(to, data, len);
}
@@ -3477,26 +5780,27 @@ driver_send_term(ErlDrvPort ix, ErlDrvTermData to, ErlDrvTermData* data, int len
int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
ErlDrvBinary* bin, ErlDrvSizeT offs, ErlDrvSizeT len)
{
- Port* prt = erts_drvport2port(ix);
+ erts_aint32_t state;
+ Port* prt = erts_drvport2port(ix, &state);
ERTS_SMP_CHK_NO_PROC_LOCKS;
if (prt == NULL)
return -1;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- if (prt->status & ERTS_PORT_SFLG_CLOSING)
+ if (state & ERTS_PORT_SFLG_CLOSING)
return 0;
prt->bytes_in += (hlen + len);
erts_smp_atomic_add_nob(&erts_bytes_in, (erts_aint_t) (hlen + len));
- if (prt->status & ERTS_PORT_SFLG_DISTRIBUTION) {
+ if (state & ERTS_PORT_SFLG_DISTRIBUTION) {
return erts_net_message(prt,
prt->dist_entry,
(byte*) hbuf, hlen,
(byte*) (bin->orig_bytes+offs), len);
}
else
- deliver_bin_message(prt, prt->connected,
+ deliver_bin_message(prt, ERTS_PORT_GET_CONNECTED(prt),
hbuf, hlen, bin, offs, len);
return 0;
}
@@ -3511,7 +5815,8 @@ int driver_output_binary(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
char* buf, ErlDrvSizeT len)
{
- Port* prt = erts_drvport2port(ix);
+ erts_aint32_t state;
+ Port* prt = erts_drvport2port(ix, &state);
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -3520,12 +5825,12 @@ int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- if (prt->status & ERTS_PORT_SFLG_CLOSING)
+ if (state & ERTS_PORT_SFLG_CLOSING)
return 0;
prt->bytes_in += (hlen + len);
erts_smp_atomic_add_nob(&erts_bytes_in, (erts_aint_t) (hlen + len));
- if (prt->status & ERTS_PORT_SFLG_DISTRIBUTION) {
+ if (state & ERTS_PORT_SFLG_DISTRIBUTION) {
if (len == 0)
return erts_net_message(prt,
prt->dist_entry,
@@ -3537,10 +5842,12 @@ int driver_output2(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
(byte*) hbuf, hlen,
(byte*) buf, len);
}
- else if(prt->status & ERTS_PORT_SFLG_LINEBUF_IO)
- deliver_linebuf_message(prt, prt->connected, hbuf, hlen, buf, len);
+ else if (state & ERTS_PORT_SFLG_LINEBUF_IO)
+ deliver_linebuf_message(prt, state, ERTS_PORT_GET_CONNECTED(prt),
+ hbuf, hlen, buf, len);
else
- deliver_read_message(prt, prt->connected, hbuf, hlen, buf, len, 0);
+ deliver_read_message(prt, state, ERTS_PORT_GET_CONNECTED(prt),
+ hbuf, hlen, buf, len, 0);
return 0;
}
@@ -3561,6 +5868,7 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
SysIOVec* iov;
ErlDrvBinary** binv;
Port* prt;
+ erts_aint32_t state;
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -3573,13 +5881,13 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
if (hlen < 0)
hlen = 0;
- prt = erts_drvport2port(ix);
+ prt = erts_drvport2port(ix, &state);
if (prt == NULL)
return -1;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- if (prt->status & ERTS_PORT_SFLG_CLOSING)
+ if (state & ERTS_PORT_SFLG_CLOSING)
return 0;
/* size > 0 ! */
@@ -3604,7 +5912,8 @@ int driver_outputv(ErlDrvPort ix, char* hbuf, ErlDrvSizeT hlen,
/* XXX handle distribution !!! */
prt->bytes_in += (hlen + size);
erts_smp_atomic_add_nob(&erts_bytes_in, (erts_aint_t) (hlen + size));
- deliver_vec_message(prt, prt->connected, hbuf, hlen, binv, iov, n, size);
+ deliver_vec_message(prt, ERTS_PORT_GET_CONNECTED(prt), hbuf, hlen,
+ binv, iov, n, size);
return 0;
}
@@ -3715,8 +6024,7 @@ ErlDrvBinary* driver_realloc_binary(ErlDrvBinary* bin, ErlDrvSizeT size)
}
-void driver_free_binary(dbin)
-ErlDrvBinary* dbin;
+void driver_free_binary(ErlDrvBinary* dbin)
{
Binary *bin;
if (!dbin) {
@@ -3812,6 +6120,7 @@ static ERTS_INLINE void pdl_destroy(ErlDrvPDL pdl)
{
ERTS_LC_ASSERT(driver_pdl_get_refc(pdl) == 0);
erts_mtx_destroy(&pdl->mtx);
+ erts_port_dec_refc(pdl->prt);
erts_free(ERTS_ALC_T_PORT_DATA_LOCK, pdl);
}
@@ -3849,16 +6158,18 @@ ErlDrvPDL
driver_pdl_create(ErlDrvPort dp)
{
ErlDrvPDL pdl;
- Port *pp = erts_drvport2port(dp);
+ Port *pp = erts_drvport2port(dp, NULL);
if (!pp || pp->port_data_lock)
return NULL;
pdl = erts_alloc(ERTS_ALC_T_PORT_DATA_LOCK,
sizeof(struct erl_drv_port_data_lock));
erts_mtx_init(&pdl->mtx, "port_data_lock");
pdl_init_refc(pdl);
+ erts_port_inc_refc(pp);
+ pdl->prt = pp;
pp->port_data_lock = pdl;
#ifdef HARDDEBUG
- erts_fprintf(stderr, "driver_pdl_create(%T) -> 0x%08X\r\n",pp->id,(unsigned) pdl);
+ erts_fprintf(stderr, "driver_pdl_create(%T) -> 0x%08X\r\n",pp->common.id,(unsigned) pdl);
#endif
return pdl;
}
@@ -4296,33 +6607,33 @@ static ERTS_INLINE void
drv_cancel_timer(Port *prt)
{
#ifdef ERTS_SMP
- erts_cancel_smp_ptimer(prt->ptimer);
+ erts_cancel_smp_ptimer(prt->common.u.alive.ptimer);
#else
- erts_cancel_timer(&prt->tm);
+ erts_cancel_timer(&prt->common.u.alive.tm);
#endif
if (erts_port_task_is_scheduled(&prt->timeout_task))
- erts_port_task_abort(prt->id, &prt->timeout_task);
+ erts_port_task_abort(&prt->timeout_task);
}
int driver_set_timer(ErlDrvPort ix, unsigned long t)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
ERTS_SMP_CHK_NO_PROC_LOCKS;
if (prt == NULL)
return -1;
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
+
if (prt->drv_ptr->timeout == NULL)
return -1;
drv_cancel_timer(prt);
#ifdef ERTS_SMP
- erts_create_smp_ptimer(&prt->ptimer,
- prt->id,
+ erts_create_smp_ptimer(&prt->common.u.alive.ptimer,
+ prt->common.id,
(ErlTimeoutProc) schedule_port_timeout,
t);
#else
- erts_set_timer(&prt->tm,
+ erts_set_timer(&prt->common.u.alive.tm,
(ErlTimeoutProc) schedule_port_timeout,
NULL,
prt,
@@ -4333,7 +6644,7 @@ int driver_set_timer(ErlDrvPort ix, unsigned long t)
int driver_cancel_timer(ErlDrvPort ix)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
if (prt == NULL)
return -1;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
@@ -4345,7 +6656,7 @@ int driver_cancel_timer(ErlDrvPort ix)
int
driver_read_timer(ErlDrvPort ix, unsigned long* t)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -4353,9 +6664,11 @@ driver_read_timer(ErlDrvPort ix, unsigned long* t)
return -1;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
#ifdef ERTS_SMP
- *t = prt->ptimer ? erts_time_left(&prt->ptimer->timer.tm) : 0;
+ *t = (prt->common.u.alive.ptimer
+ ? erts_time_left(&prt->common.u.alive.ptimer->timer.tm)
+ : 0);
#else
- *t = erts_time_left(&prt->tm);
+ *t = erts_time_left(&prt->common.u.alive.tm);
#endif
return 0;
}
@@ -4406,8 +6719,8 @@ static int do_driver_monitor_process(Port *prt,
}
ref = erts_make_ref_in_buffer(buf);
- erts_add_monitor(&(prt->monitors), MON_ORIGIN, ref, rp->id, NIL);
- erts_add_monitor(&(rp->monitors), MON_TARGET, ref, prt->id, NIL);
+ erts_add_monitor(&ERTS_P_MONITORS(prt), MON_ORIGIN, ref, rp->common.id, NIL);
+ erts_add_monitor(&ERTS_P_MONITORS(rp), MON_TARGET, ref, prt->common.id, NIL);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
ref_to_driver_monitor(ref,monitor);
@@ -4417,31 +6730,22 @@ static int do_driver_monitor_process(Port *prt,
/*
* This can be called from a non scheduler thread iff a port_data_lock exists
*/
-int driver_monitor_process(ErlDrvPort port,
+int driver_monitor_process(ErlDrvPort drvport,
ErlDrvTermData process,
ErlDrvMonitor *monitor)
{
Port *prt;
int ret;
- Uint32 status;
+ erts_aint32_t state;
+#if !HEAP_ON_C_STACK || (defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK))
ErtsSchedulerData *sched = erts_get_scheduler_data();
- int ix = (int) port;
- if (ix < 0 || erts_max_ports <= ix) {
- return -1;
- }
- prt = &erts_port[ix];
+#endif
- DRV_MONITOR_LOCK_PDL(prt);
+ prt = DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(drvport);
- if (sched) {
- status = erts_port[ix].status;
- } else {
- erts_smp_port_state_lock(prt);
- status = erts_port[ix].status;
- erts_smp_port_state_unlock(prt);
- }
+ state = erts_atomic32_read_nob(&prt->state);
- if (status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) {
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) {
DRV_MONITOR_UNLOCK_PDL(prt);
return -1;
}
@@ -4479,7 +6783,7 @@ static int do_driver_demonitor_process(Port *prt, Eterm *buf,
memcpy(buf,monitor,sizeof(Eterm)*REF_THING_SIZE);
ref = make_internal_ref(buf);
- mon = erts_lookup_monitor(prt->monitors, ref);
+ mon = erts_lookup_monitor(ERTS_P_MONITORS(prt), ref);
if (mon == NULL) {
return 1;
}
@@ -4491,13 +6795,13 @@ static int do_driver_demonitor_process(Port *prt, Eterm *buf,
to,
ERTS_PROC_LOCK_LINK,
ERTS_P2P_FLG_ALLOW_OTHER_X);
- mon = erts_remove_monitor(&(prt->monitors), ref);
+ mon = erts_remove_monitor(&ERTS_P_MONITORS(prt), ref);
if (mon) {
erts_destroy_monitor(mon);
}
if (rp) {
ErtsMonitor *rmon;
- rmon = erts_remove_monitor(&(rp->monitors), ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(rp), ref);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_LINK);
if (rmon != NULL) {
erts_destroy_monitor(rmon);
@@ -4506,30 +6810,21 @@ static int do_driver_demonitor_process(Port *prt, Eterm *buf,
return 0;
}
-int driver_demonitor_process(ErlDrvPort port,
+int driver_demonitor_process(ErlDrvPort drvport,
const ErlDrvMonitor *monitor)
{
Port *prt;
int ret;
- Uint32 status;
+ erts_aint32_t state;
+#if !HEAP_ON_C_STACK || (defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK))
ErtsSchedulerData *sched = erts_get_scheduler_data();
- int ix = (int) port;
- if (ix < 0 || erts_max_ports <= ix) {
- return -1;
- }
- prt = &erts_port[ix];
+#endif
- DRV_MONITOR_LOCK_PDL(prt);
+ prt = DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(drvport);
- if (sched) {
- status = erts_port[ix].status;
- } else {
- erts_smp_port_state_lock(prt);
- status = erts_port[ix].status;
- erts_smp_port_state_unlock(prt);
- }
+ state = erts_atomic32_read_nob(&prt->state);
- if (status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) {
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) {
DRV_MONITOR_UNLOCK_PDL(prt);
return -1;
}
@@ -4565,7 +6860,7 @@ static ErlDrvTermData do_driver_get_monitored_process(Port *prt, Eterm *buf,
memcpy(buf,monitor,sizeof(Eterm)*REF_THING_SIZE);
ref = make_internal_ref(buf);
- mon = erts_lookup_monitor(prt->monitors, ref);
+ mon = erts_lookup_monitor(ERTS_P_MONITORS(prt), ref);
if (mon == NULL) {
return driver_term_nil;
}
@@ -4576,30 +6871,20 @@ static ErlDrvTermData do_driver_get_monitored_process(Port *prt, Eterm *buf,
}
-ErlDrvTermData driver_get_monitored_process(ErlDrvPort port,
+ErlDrvTermData driver_get_monitored_process(ErlDrvPort drvport,
const ErlDrvMonitor *monitor)
{
Port *prt;
ErlDrvTermData ret;
- Uint32 status;
+ erts_aint32_t state;
+#if !HEAP_ON_C_STACK || (defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK))
ErtsSchedulerData *sched = erts_get_scheduler_data();
- int ix = (int) port;
- if (ix < 0 || erts_max_ports <= ix) {
- return driver_term_nil;
- }
- prt = &erts_port[ix];
-
- DRV_MONITOR_LOCK_PDL(prt);
+#endif
- if (sched) {
- status = erts_port[ix].status;
- } else {
- erts_smp_port_state_lock(prt);
- status = erts_port[ix].status;
- erts_smp_port_state_unlock(prt);
- }
+ prt = DRV_MONITOR_LOOKUP_PORT_LOCK_PDL(drvport);
- if (status & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) {
+ state = erts_atomic32_read_nob(&prt->state);
+ if (state & ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP) {
DRV_MONITOR_UNLOCK_PDL(prt);
return driver_term_nil;
}
@@ -4644,7 +6929,7 @@ void erts_fire_port_monitor(Port *prt, Eterm ref)
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
ASSERT(prt->drv_ptr != NULL);
DRV_MONITOR_LOCK_PDL(prt);
- if (erts_lookup_monitor(prt->monitors,ref) == NULL) {
+ if (erts_lookup_monitor(ERTS_P_MONITORS(prt), ref) == NULL) {
DRV_MONITOR_UNLOCK_PDL(prt);
return;
}
@@ -4654,7 +6939,7 @@ void erts_fire_port_monitor(Port *prt, Eterm ref)
DRV_MONITOR_UNLOCK_PDL(prt);
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(driver_process_exit)) {
- DTRACE_FORMAT_COMMON_PID_AND_PORT(prt->connected, prt)
+ DTRACE_FORMAT_COMMON_PID_AND_PORT(ERTS_PORT_GET_CONNECTED(prt), prt)
DTRACE3(driver_process_exit, process_str, port_str, prt->name);
}
#endif
@@ -4663,7 +6948,7 @@ void erts_fire_port_monitor(Port *prt, Eterm ref)
erts_unblock_fpe(fpe_was_unmasked);
DRV_MONITOR_LOCK_PDL(prt);
/* remove monitor *after* callback */
- rmon = erts_remove_monitor(&(prt->monitors),ref);
+ rmon = erts_remove_monitor(&ERTS_P_MONITORS(prt), ref);
DRV_MONITOR_UNLOCK_PDL(prt);
if (rmon) {
erts_destroy_monitor(rmon);
@@ -4674,7 +6959,8 @@ void erts_fire_port_monitor(Port *prt, Eterm ref)
static int
driver_failure_term(ErlDrvPort ix, Eterm term, int eof)
{
- Port* prt = erts_drvport2port(ix);
+ erts_aint32_t state;
+ Port* prt = erts_drvport2port(ix, &state);
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -4682,19 +6968,19 @@ driver_failure_term(ErlDrvPort ix, Eterm term, int eof)
return -1;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
if (eof)
- flush_linebuf_messages(prt);
- if (prt->status & ERTS_PORT_SFLG_CLOSING) {
+ flush_linebuf_messages(prt, state);
+ if (state & ERTS_PORT_SFLG_CLOSING) {
terminate_port(prt);
- } else if (eof && (prt->status & ERTS_PORT_SFLG_SOFT_EOF)) {
- deliver_result(prt->id, prt->connected, am_eof);
+ } else if (eof && (state & ERTS_PORT_SFLG_SOFT_EOF)) {
+ deliver_result(prt->common.id, ERTS_PORT_GET_CONNECTED(prt), am_eof);
} else {
- /* XXX UGLY WORK AROUND, Let do_exit_port terminate the port */
+ /* XXX UGLY WORK AROUND, Let erts_deliver_port_exit() terminate the port */
if (prt->port_data_lock)
driver_pdl_lock(prt->port_data_lock);
prt->ioq.size = 0;
if (prt->port_data_lock)
driver_pdl_unlock(prt->port_data_lock);
- erts_do_exit_port(prt, prt->id, eof ? am_normal : term);
+ erts_deliver_port_exit(prt, prt->common.id, eof ? am_normal : term, 0);
}
return 0;
}
@@ -4707,23 +6993,23 @@ driver_failure_term(ErlDrvPort ix, Eterm term, int eof)
*/
int driver_exit(ErlDrvPort ix, int err)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
Process* rp;
ErtsLink *lnk, *rlnk = NULL;
+ Eterm connected;
ERTS_SMP_CHK_NO_PROC_LOCKS;
if (prt == NULL)
return -1;
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
-
- rp = erts_pid2proc(NULL, 0, prt->connected, ERTS_PROC_LOCK_LINK);
+ connected = ERTS_PORT_GET_CONNECTED(prt);
+ rp = erts_pid2proc(NULL, 0, connected, ERTS_PROC_LOCK_LINK);
if (rp) {
- rlnk = erts_remove_link(&(rp->nlinks),prt->id);
+ rlnk = erts_remove_link(&ERTS_P_LINKS(rp),prt->common.id);
}
- lnk = erts_remove_link(&(prt->nlinks),prt->connected);
+ lnk = erts_remove_link(&ERTS_P_LINKS(prt), connected);
#ifdef ERTS_SMP
if (rp)
@@ -4780,24 +7066,24 @@ ErlDrvTermData driver_mk_atom(char* string)
ErlDrvTermData driver_mk_port(ErlDrvPort ix)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- return (ErlDrvTermData) prt->id;
+ return (ErlDrvTermData) prt->common.id;
}
ErlDrvTermData driver_connected(ErlDrvPort ix)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
ERTS_SMP_CHK_NO_PROC_LOCKS;
if (prt == NULL)
return NIL;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
- return prt->connected;
+ return ERTS_PORT_GET_CONNECTED(prt);
}
ErlDrvTermData driver_caller(ErlDrvPort ix)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
ERTS_SMP_CHK_NO_PROC_LOCKS;
if (prt == NULL)
return NIL;
@@ -4807,25 +7093,25 @@ ErlDrvTermData driver_caller(ErlDrvPort ix)
int driver_lock_driver(ErlDrvPort ix)
{
- Port* prt = erts_drvport2port(ix);
+ Port* prt = erts_drvport2port(ix, NULL);
DE_Handle* dh;
ERTS_SMP_CHK_NO_PROC_LOCKS;
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
if (prt == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
return -1;
}
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
if ((dh = (DE_Handle*)prt->drv_ptr->handle ) == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
return -1;
}
erts_ddll_lock_driver(dh, prt->drv_ptr->name);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
return 0;
}
@@ -4835,7 +7121,7 @@ static int maybe_lock_driver_list(void)
void *rec_lock;
rec_lock = erts_smp_tsd_get(driver_list_lock_status_key);
if (rec_lock == 0) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
return 1;
}
return 0;
@@ -4843,7 +7129,7 @@ static int maybe_lock_driver_list(void)
static void maybe_unlock_driver_list(int doit)
{
if (doit) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
}
/*
@@ -5012,7 +7298,7 @@ no_event_callback(ErlDrvData drv_data, ErlDrvEvent event, ErlDrvEventData event_
{
Port *prt = get_current_port();
report_missing_drv_callback(prt, "Event", "event()");
- driver_event((ErlDrvPort) internal_port_index(prt->id), event, NULL);
+ driver_event((ErlDrvPort) prt, event, NULL);
}
static void
@@ -5020,7 +7306,7 @@ no_ready_input_callback(ErlDrvData drv_data, ErlDrvEvent event)
{
Port *prt = get_current_port();
report_missing_drv_callback(prt, "Input", "ready_input()");
- driver_select((ErlDrvPort) internal_port_index(prt->id), event,
+ driver_select((ErlDrvPort) prt, event,
(ERL_DRV_READ | ERL_DRV_USE_NO_CALLBACK), 0);
}
@@ -5029,7 +7315,7 @@ no_ready_output_callback(ErlDrvData drv_data, ErlDrvEvent event)
{
Port *prt = get_current_port();
report_missing_drv_callback(prt, "Output", "ready_output()");
- driver_select((ErlDrvPort) internal_port_index(prt->id), event,
+ driver_select((ErlDrvPort) prt, event,
(ERL_DRV_WRITE | ERL_DRV_USE_NO_CALLBACK), 0);
}
@@ -5064,13 +7350,13 @@ init_driver(erts_driver_t *drv, ErlDrvEntry *de, DE_Handle *handle)
drv->lock = NULL;
else {
drv->lock = erts_alloc(ERTS_ALC_T_DRIVER_LOCK,
- sizeof(erts_smp_mtx_t));
- erts_smp_mtx_init_x(drv->lock,
- "driver_lock",
+ sizeof(erts_mtx_t));
+ erts_mtx_init_x(drv->lock,
+ "driver_lock",
#if defined(ERTS_ENABLE_LOCK_CHECK) || defined(ERTS_ENABLE_LOCK_COUNT)
- am_atom_put(drv->name, sys_strlen(drv->name))
+ am_atom_put(drv->name, sys_strlen(drv->name))
#else
- NIL
+ NIL
#endif
);
}
@@ -5142,7 +7428,7 @@ int erts_add_driver_entry(ErlDrvEntry *de, DE_Handle *handle, int driver_list_lo
int res;
if (!driver_list_locked) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
}
dp->next = driver_list;
@@ -5171,7 +7457,7 @@ int erts_add_driver_entry(ErlDrvEntry *de, DE_Handle *handle, int driver_list_lo
if (!driver_list_locked) {
erts_smp_tsd_set(driver_list_lock_status_key, NULL);
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return res;
}
@@ -5184,7 +7470,7 @@ int remove_driver_entry(ErlDrvEntry *drv)
rec_lock = erts_smp_tsd_get(driver_list_lock_status_key);
if (rec_lock == NULL) {
- erts_smp_mtx_lock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwlock(&erts_driver_list_lock);
}
dp = driver_list;
while (dp && dp->entry != drv)
@@ -5192,7 +7478,7 @@ int remove_driver_entry(ErlDrvEntry *drv)
if (dp) {
if (dp->handle) {
if (rec_lock == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return -1;
}
@@ -5206,12 +7492,12 @@ int remove_driver_entry(ErlDrvEntry *drv)
}
erts_destroy_driver(dp);
if (rec_lock == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return 1;
}
if (rec_lock == NULL) {
- erts_smp_mtx_unlock(&erts_driver_list_lock);
+ erts_smp_rwmtx_rwunlock(&erts_driver_list_lock);
}
return 0;
}
@@ -5241,18 +7527,22 @@ erl_drv_getenv(char *key, char *value, size_t *value_size)
* - uses the fact that heart_port is registered when starting heart
*/
-Port *erts_get_heart_port() {
+Port *erts_get_heart_port(void)
+{
+ int ix, max = erts_ptab_max(&erts_port);
- Port* port;
- Uint ix;
+ for (ix = 0; ix < max; ix++) {
+ struct reg_proc *reg;
+ Port *port = erts_pix2port(ix);
- for(ix = 0; ix < erts_max_ports; ix++) {
- port = &erts_port[ix];
+ if (!port)
+ continue;
/* only examine undead or alive ports */
- if (port->status & ERTS_PORT_SFLGS_DEAD)
+ if (erts_atomic32_read_nob(&port->state) & ERTS_PORT_SFLGS_DEAD)
continue;
/* immediate atom compare */
- if (port->reg && port->reg->name == am_heart_port) {
+ reg = port->common.u.alive.reg;
+ if (reg && reg->name == am_heart_port) {
return port;
}
}
diff --git a/erts/emulator/beam/module.c b/erts/emulator/beam/module.c
index b93b1ad09a..01856007ee 100644
--- a/erts/emulator/beam/module.c
+++ b/erts/emulator/beam/module.c
@@ -26,21 +26,32 @@
#include "global.h"
#include "module.h"
+#ifdef DEBUG
+# define IF_DEBUG(x) x
+#else
+# define IF_DEBUG(x)
+#endif
+
#define MODULE_SIZE 50
#define MODULE_LIMIT (64*1024)
-static IndexTable module_table;
+static IndexTable module_tables[ERTS_NUM_CODE_IX];
-/*
- * SMP note: We don't need to look accesses to the module table because
- * there is one only scheduler thread when we update it.
+erts_smp_rwmtx_t the_old_code_rwlocks[ERTS_NUM_CODE_IX];
+
+static erts_smp_atomic_t tot_module_bytes;
+
+/* SMP note: Active module table lookup and current module instance can be
+ * read without any locks. Old module instances are protected by
+ * "the_old_code_rwlocks" as purging is done on active module table.
+ * Staging table is protected by the "code_ix lock".
*/
#include "erl_smp.h"
void module_info(int to, void *to_arg)
{
- index_info(to, to_arg, &module_table);
+ index_info(to, to_arg, &module_tables[erts_active_code_ix()]);
}
@@ -59,45 +70,67 @@ static int module_cmp(Module* tmpl, Module* obj)
static Module* module_alloc(Module* tmpl)
{
Module* obj = (Module*) erts_alloc(ERTS_ALC_T_MODULE, sizeof(Module));
+ erts_smp_atomic_add_nob(&tot_module_bytes, sizeof(Module));
obj->module = tmpl->module;
- obj->code = 0;
- obj->old_code = 0;
- obj->code_length = 0;
- obj->old_code_length = 0;
+ obj->curr.code = 0;
+ obj->old.code = 0;
+ obj->curr.code_length = 0;
+ obj->old.code_length = 0;
obj->slot.index = -1;
- obj->nif = NULL;
- obj->old_nif = NULL;
+ obj->curr.nif = NULL;
+ obj->old.nif = NULL;
+ obj->curr.num_breakpoints = 0;
+ obj->old.num_breakpoints = 0;
+ obj->curr.num_traced_exports = 0;
+ obj->old.num_traced_exports = 0;
return obj;
}
+static void module_free(Module* mod)
+{
+ erts_free(ERTS_ALC_T_MODULE, mod);
+ erts_smp_atomic_add_nob(&tot_module_bytes, -sizeof(Module));
+}
void init_module_table(void)
{
HashFunctions f;
+ int i;
f.hash = (H_FUN) module_hash;
f.cmp = (HCMP_FUN) module_cmp;
f.alloc = (HALLOC_FUN) module_alloc;
- f.free = 0;
+ f.free = (HFREE_FUN) module_free;
+
+ for (i = 0; i < ERTS_NUM_CODE_IX; i++) {
+ erts_index_init(ERTS_ALC_T_MODULE_TABLE, &module_tables[i], "module_code",
+ MODULE_SIZE, MODULE_LIMIT, f);
+ }
- erts_index_init(ERTS_ALC_T_MODULE_TABLE, &module_table, "module_code",
- MODULE_SIZE, MODULE_LIMIT, f);
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ erts_smp_rwmtx_init_x(&the_old_code_rwlocks[i], "old_code", make_small(i));
+ }
+ erts_smp_atomic_init_nob(&tot_module_bytes, 0);
}
Module*
-erts_get_module(Eterm mod)
+erts_get_module(Eterm mod, ErtsCodeIndex code_ix)
{
Module e;
int index;
+ IndexTable* mod_tab;
ASSERT(is_atom(mod));
+
+ mod_tab = &module_tables[code_ix];
+
e.module = atom_val(mod);
- index = index_get(&module_table, (void*) &e);
+ index = index_get(mod_tab, (void*) &e);
if (index == -1) {
return NULL;
} else {
- return (Module*) erts_index_lookup(&module_table, index);
+ return (Module*) erts_index_lookup(mod_tab, index);
}
}
@@ -105,27 +138,101 @@ Module*
erts_put_module(Eterm mod)
{
Module e;
- int index;
+ IndexTable* mod_tab;
+ int oldsz, newsz;
+ Module* res;
ASSERT(is_atom(mod));
ERTS_SMP_LC_ASSERT(erts_initialized == 0
- || erts_smp_thr_progress_is_blocking());
+ || erts_has_code_write_permission());
+
+ mod_tab = &module_tables[erts_staging_code_ix()];
e.module = atom_val(mod);
- index = index_put(&module_table, (void*) &e);
- return (Module*) erts_index_lookup(&module_table, index);
+ oldsz = index_table_sz(mod_tab);
+ res = (Module*) index_put_entry(mod_tab, (void*) &e);
+ newsz = index_table_sz(mod_tab);
+ erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz));
+ return res;
}
-Module *module_code(int i)
+Module *module_code(int i, ErtsCodeIndex code_ix)
{
- return (Module*) erts_index_lookup(&module_table, i);
+ return (Module*) erts_index_lookup(&module_tables[code_ix], i);
}
-int module_code_size(void)
+int module_code_size(ErtsCodeIndex code_ix)
{
- return module_table.entries;
+ return module_tables[code_ix].entries;
}
int module_table_sz(void)
{
- return index_table_sz(&module_table);
+ return erts_smp_atomic_read_nob(&tot_module_bytes);
+}
+
+#ifdef DEBUG
+static ErtsCodeIndex dbg_load_code_ix = 0;
+#endif
+
+static int entries_at_start_staging = 0;
+
+void module_start_staging(void)
+{
+ IndexTable* src = &module_tables[erts_active_code_ix()];
+ IndexTable* dst = &module_tables[erts_staging_code_ix()];
+ Module* src_mod;
+ Module* dst_mod;
+ int i, oldsz, newsz;
+
+ ASSERT(dbg_load_code_ix == -1);
+ ASSERT(dst->entries <= src->entries);
+
+ /*
+ * Make sure our existing modules are up-to-date
+ */
+ for (i = 0; i < dst->entries; i++) {
+ src_mod = (Module*) erts_index_lookup(src, i);
+ dst_mod = (Module*) erts_index_lookup(dst, i);
+ ASSERT(src_mod->module == dst_mod->module);
+
+ dst_mod->curr = src_mod->curr;
+ dst_mod->old = src_mod->old;
+ }
+
+ /*
+ * Copy all new modules from active table
+ */
+ oldsz = index_table_sz(dst);
+ for (i = dst->entries; i < src->entries; i++) {
+ src_mod = (Module*) erts_index_lookup(src, i);
+ dst_mod = (Module*) index_put_entry(dst, src_mod);
+ ASSERT(dst_mod != src_mod);
+
+ dst_mod->curr = src_mod->curr;
+ dst_mod->old = src_mod->old;
+ }
+ newsz = index_table_sz(dst);
+ erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz));
+
+ entries_at_start_staging = dst->entries;
+ IF_DEBUG(dbg_load_code_ix = erts_staging_code_ix());
+}
+
+void module_end_staging(int commit)
+{
+ ASSERT(dbg_load_code_ix == erts_staging_code_ix());
+
+ if (!commit) { /* abort */
+ IndexTable* tab = &module_tables[erts_staging_code_ix()];
+ int oldsz, newsz;
+
+ ASSERT(entries_at_start_staging <= tab->entries);
+ oldsz = index_table_sz(tab);
+ index_erase_latest_from(tab, entries_at_start_staging);
+ newsz = index_table_sz(tab);
+ erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz));
+ }
+
+ IF_DEBUG(dbg_load_code_ix = -1);
}
+
diff --git a/erts/emulator/beam/module.h b/erts/emulator/beam/module.h
index 694e4ab72f..6e123a0ffe 100644
--- a/erts/emulator/beam/module.h
+++ b/erts/emulator/beam/module.h
@@ -24,28 +24,72 @@
#include "index.h"
#endif
+struct erl_module_instance {
+ BeamInstr* code;
+ int code_length; /* Length of loaded code in bytes. */
+ unsigned catches;
+ struct erl_module_nif* nif;
+ int num_breakpoints;
+ int num_traced_exports;
+};
typedef struct erl_module {
IndexSlot slot; /* Must be located at top of struct! */
int module; /* Atom index for module (not tagged). */
- BeamInstr* code;
- BeamInstr* old_code;
- int code_length; /* Length of loaded code in bytes. */
- int old_code_length; /* Length of old loaded code in bytes */
- unsigned catches, old_catches;
- struct erl_module_nif* nif;
- struct erl_module_nif* old_nif;
+ struct erl_module_instance curr;
+ struct erl_module_instance old; /* protected by "old_code" rwlock */
} Module;
-Module* erts_get_module(Eterm mod);
+Module* erts_get_module(Eterm mod, ErtsCodeIndex code_ix);
Module* erts_put_module(Eterm mod);
void init_module_table(void);
+void module_start_staging(void);
+void module_end_staging(int commit);
void module_info(int, void *);
-Module *module_code(int);
-int module_code_size(void);
+Module *module_code(int, ErtsCodeIndex);
+int module_code_size(ErtsCodeIndex);
int module_table_sz(void);
+ERTS_GLB_INLINE void erts_rwlock_old_code(ErtsCodeIndex);
+ERTS_GLB_INLINE void erts_rwunlock_old_code(ErtsCodeIndex);
+ERTS_GLB_INLINE void erts_rlock_old_code(ErtsCodeIndex);
+ERTS_GLB_INLINE void erts_runlock_old_code(ErtsCodeIndex);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+int erts_is_old_code_rlocked(ErtsCodeIndex);
+#endif
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+extern erts_smp_rwmtx_t the_old_code_rwlocks[ERTS_NUM_CODE_IX];
+
+ERTS_GLB_INLINE void erts_rwlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_rwlock(&the_old_code_rwlocks[code_ix]);
+}
+ERTS_GLB_INLINE void erts_rwunlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_rwunlock(&the_old_code_rwlocks[code_ix]);
+}
+ERTS_GLB_INLINE void erts_rlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_rlock(&the_old_code_rwlocks[code_ix]);
+}
+ERTS_GLB_INLINE void erts_runlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_runlock(&the_old_code_rwlocks[code_ix]);
+}
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ERTS_GLB_INLINE int erts_is_old_code_rlocked(ErtsCodeIndex code_ix)
+{
+ return erts_smp_lc_rwmtx_is_rlocked(&the_old_code_rwlocks[code_ix]);
+}
#endif
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+
+#endif /* !__MODULE_H__ */
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 9b168889dd..6764e88c81 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -62,11 +62,8 @@ label L
i_func_info I a a I
int_code_end
-i_trace_breakpoint
-i_mtrace_breakpoint
+i_generic_breakpoint
i_debug_breakpoint
-i_count_breakpoint
-i_time_breakpoint
i_return_time_trace
i_return_to_trace
i_yield
@@ -522,7 +519,6 @@ apply_bif
call_nif
call_error_handler
error_action_code
-call_traced_function
return_trace
#
@@ -829,16 +825,20 @@ call_ext_only Ar=u==2 Bif=u$bif:erlang:load_nif/2 => allocate u Ar | i_call_ext
#
-# The apply/2 and apply/3 BIFs are instructions.
+# apply/2 is an instruction, not a BIF.
#
call_ext u==2 u$func:erlang:apply/2 => i_apply_fun
call_ext_last u==2 u$func:erlang:apply/2 D => i_apply_fun_last D
call_ext_only u==2 u$func:erlang:apply/2 => i_apply_fun_only
-call_ext u==3 u$func:erlang:apply/3 => i_apply
-call_ext_last u==3 u$func:erlang:apply/3 D => i_apply_last D
-call_ext_only u==3 u$func:erlang:apply/3 => i_apply_only
+#
+# The apply/3 BIF is an instruction.
+#
+
+call_ext u==3 u$bif:erlang:apply/3 => i_apply
+call_ext_last u==3 u$bif:erlang:apply/3 D => i_apply_last D
+call_ext_only u==3 u$bif:erlang:apply/3 => i_apply_only
#
# The exit/1 and throw/1 BIFs never execute the instruction following them;
diff --git a/erts/emulator/beam/register.c b/erts/emulator/beam/register.c
index 26d64887d0..757e2800e6 100644
--- a/erts/emulator/beam/register.c
+++ b/erts/emulator/beam/register.c
@@ -93,19 +93,14 @@ reg_safe_write_lock(Process *c_p, ErtsProcLocks *c_p_locks)
reg_write_lock();
}
+#endif
+
static ERTS_INLINE int
is_proc_alive(Process *p)
{
- int res;
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- res = !p->is_exiting;
- erts_pix_unlock(pixlck);
- return res;
+ return !ERTS_PROC_IS_EXITING(p);
}
-#endif
-
void register_info(int to, void *to_arg)
{
int lock = !ERTS_IS_CRASH_DUMPING;
@@ -180,14 +175,14 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
if (is_not_atom(name) || name == am_undefined)
return res;
- if (c_p->id == id) /* A very common case I think... */
+ if (c_p->common.id == id) /* A very common case I think... */
proc = c_p;
else {
if (is_not_internal_pid(id) && is_not_internal_port(id))
return res;
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
if (is_internal_port(id)) {
- port = erts_id2port(id, NULL, 0);
+ port = erts_id2port(id);
if (!port)
goto done;
}
@@ -209,7 +204,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
r.p = proc;
if (!proc)
goto done;
- if (proc->reg)
+ if (proc->common.u.alive.reg)
goto done;
r.pt = NULL;
}
@@ -217,7 +212,7 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
ASSERT(!INVALID_PORT(port, id));
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port));
r.pt = port;
- if (r.pt->reg)
+ if (r.pt->common.u.alive.reg)
goto done;
r.p = NULL;
}
@@ -229,23 +224,24 @@ int erts_register_name(Process *c_p, Eterm name, Eterm id)
if (IS_TRACED_FL(proc, F_TRACE_PROCS)) {
trace_proc(c_p, proc, am_register, name);
}
- proc->reg = rp;
+ proc->common.u.alive.reg = rp;
}
else if (port && rp->pt == port) {
if (IS_TRACED_FL(port, F_TRACE_PORTS)) {
trace_port(port, am_register, name);
}
- port->reg = rp;
+ port->common.u.alive.reg = rp;
}
- if ((rp->p && rp->p->id == id) || (rp->pt && rp->pt->id == id)) {
+ if ((rp->p && rp->p->common.id == id)
+ || (rp->pt && rp->pt->common.id == id)) {
res = 1;
}
done:
reg_write_unlock();
if (port)
- erts_smp_port_unlock(port);
+ erts_port_release(port);
if (c_p != proc) {
if (proc)
erts_smp_proc_unlock(proc, ERTS_PROC_LOCK_MAIN);
@@ -296,9 +292,9 @@ erts_whereis_name_to_id(Process *c_p, Eterm name)
* is read only.
*/
if (rp->p)
- res = rp->p->id;
+ res = rp->p->common.id;
else if (rp->pt)
- res = rp->pt->id;
+ res = rp->pt->common.id;
break;
}
b = b->next;
@@ -389,8 +385,7 @@ erts_whereis_name(Process *c_p,
}
#else
if (rp->p
- && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- || rp->p->status != P_EXITING))
+ && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X) || is_proc_alive(rp->p)))
*proc = rp->p;
else
*proc = NULL;
@@ -409,19 +404,19 @@ erts_whereis_name(Process *c_p,
if (pending_port) {
/* Ahh! Registered port changed while reg lock
was unlocked... */
- erts_smp_port_unlock(pending_port);
+ erts_port_release(pending_port);
pending_port = NULL;
}
if (erts_smp_port_trylock(rp->pt) == EBUSY) {
- Eterm id = rp->pt->id; /* id read only... */
+ Eterm id = rp->pt->common.id; /* id read only... */
/* Unlock all locks, acquire port lock, and restart... */
if (current_c_p_locks) {
erts_smp_proc_unlock(c_p, current_c_p_locks);
current_c_p_locks = 0;
}
reg_read_unlock();
- pending_port = erts_id2port(id, NULL, 0);
+ pending_port = erts_id2port(id);
goto restart;
}
}
@@ -435,7 +430,7 @@ erts_whereis_name(Process *c_p,
if (c_p && !current_c_p_locks)
erts_smp_proc_lock(c_p, c_p_locks);
if (pending_port)
- erts_smp_port_unlock(pending_port);
+ erts_port_release(pending_port);
#endif
reg_read_unlock();
@@ -497,8 +492,8 @@ int erts_unregister_name(Process *c_p,
current_c_p_locks = c_p_locks;
}
#endif
- if (c_p->reg) {
- r.name = c_p->reg->name;
+ if (c_p->common.u.alive.reg) {
+ r.name = c_p->common.u.alive.reg->name;
} else {
/* Name got unregistered while main lock was released */
res = 0;
@@ -511,20 +506,20 @@ int erts_unregister_name(Process *c_p,
if (port != rp->pt) {
#ifdef ERTS_SMP
if (port) {
- ERTS_SMP_LC_ASSERT(port != c_prt);
- erts_smp_port_unlock(port);
+ ASSERT(port != c_prt);
+ erts_port_release(port);
port = NULL;
}
if (erts_smp_port_trylock(rp->pt) == EBUSY) {
- Eterm id = rp->pt->id; /* id read only... */
+ Eterm id = rp->pt->common.id; /* id read only... */
/* Unlock all locks, acquire port lock, and restart... */
if (current_c_p_locks) {
erts_smp_proc_unlock(c_p, current_c_p_locks);
current_c_p_locks = 0;
}
reg_write_unlock();
- port = erts_id2port(id, NULL, 0);
+ port = erts_id2port(id);
goto restart;
}
#endif
@@ -534,7 +529,7 @@ int erts_unregister_name(Process *c_p,
ASSERT(rp->pt == port);
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(port));
- rp->pt->reg = NULL;
+ rp->pt->common.u.alive.reg = NULL;
if (IS_TRACED_FL(port, F_TRACE_PORTS)) {
trace_port(port, am_unregister, r.name);
@@ -551,7 +546,7 @@ int erts_unregister_name(Process *c_p,
ERTS_PROC_LOCK_MAIN);
current_c_p_locks = c_p_locks;
#endif
- rp->p->reg = NULL;
+ rp->p->common.u.alive.reg = NULL;
if (IS_TRACED_FL(rp->p, F_TRACE_PROCS)) {
trace_proc(c_p, rp->p, am_unregister, r.name);
}
@@ -570,7 +565,7 @@ int erts_unregister_name(Process *c_p,
reg_write_unlock();
if (c_prt != port) {
if (port) {
- erts_smp_port_unlock(port);
+ erts_port_release(port);
}
if (c_prt) {
erts_smp_port_lock(c_prt);
diff --git a/erts/emulator/beam/register.h b/erts/emulator/beam/register.h
index 38e8cfbf28..7170463375 100644
--- a/erts/emulator/beam/register.h
+++ b/erts/emulator/beam/register.h
@@ -24,26 +24,19 @@
#ifndef __REGPROC_H__
#define __REGPROC_H__
-#ifndef __SYS_H__
#include "sys.h"
-#endif
-
-#ifndef __HASH_H__
#include "hash.h"
-#endif
-
-#ifndef __PROCESS_H__
#include "erl_process.h"
-#endif
-
-struct port;
+#define ERL_PORT_GET_PORT_TYPE_ONLY__
+#include "erl_port.h"
+#undef ERL_PORT_GET_PORT_TYPE_ONLY__
typedef struct reg_proc
{
HashBucket bucket; /* MUST BE LOCATED AT TOP OF STRUCT!!! */
Process *p; /* The process registered (only one of this and
'pt' is non-NULL */
- struct port *pt; /* The port registered */
+ Port *pt; /* The port registered */
Eterm name; /* Atom name */
} RegProc;
@@ -55,12 +48,12 @@ int erts_register_name(Process *, Eterm, Eterm);
Eterm erts_whereis_name_to_id(Process *, Eterm);
void erts_whereis_name(Process *, ErtsProcLocks,
Eterm, Process**, ErtsProcLocks, int,
- struct port**);
+ Port**);
Process *erts_whereis_process(Process *,
ErtsProcLocks,
Eterm,
ErtsProcLocks,
int);
-int erts_unregister_name(Process *, ErtsProcLocks, struct port *, Eterm);
+int erts_unregister_name(Process *, ErtsProcLocks, Port *, Eterm);
#endif
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 41389c8734..898a30b010 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -25,11 +25,6 @@
# define NO_FPE_SIGNALS
#endif
-/* xxxP __VXWORKS__ */
-#ifdef VXWORKS
-#include <vxWorks.h>
-#endif
-
#ifdef DISABLE_CHILD_WAITER_THREAD
#undef ENABLE_CHILD_WAITER_THREAD
#endif
@@ -39,10 +34,10 @@
#define ENABLE_CHILD_WAITER_THREAD 1
#endif
+#define ERTS_I64_LITERAL(X) X##LL
+
#if defined (__WIN32__)
# include "erl_win_sys.h"
-#elif defined (VXWORKS)
-# include "erl_vxworks_sys.h"
#else
# include "erl_unix_sys.h"
#ifndef UNIX
@@ -91,14 +86,22 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
# endif
#endif
-#ifdef __GNUC__
-# if __GNUC__ < 3 && (__GNUC__ != 2 || __GNUC_MINOR__ < 96)
-# define ERTS_LIKELY(BOOL) (BOOL)
-# define ERTS_UNLIKELY(BOOL) (BOOL)
-# else
-# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0)
-# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0)
-# endif
+#if !defined(__GNUC__)
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) 0
+#elif !defined(__GNUC_MINOR__)
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \
+ ((__GNUC__ << 24) >= (((MAJ) << 24) | ((MIN) << 12) | (PL)))
+#elif !defined(__GNUC_PATCHLEVEL__)
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \
+ (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12)) >= (((MAJ) << 24) | ((MIN) << 12) | (PL)))
+#else
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \
+ (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12) | __GNUC_PATCHLEVEL__) >= (((MAJ) << 24) | ((MIN) << 12) | (PL)))
+#endif
+
+#if ERTS_AT_LEAST_GCC_VSN__(2, 96, 0)
+# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0)
+# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0)
#else
# define ERTS_LIKELY(BOOL) (BOOL)
# define ERTS_UNLIKELY(BOOL) (BOOL)
@@ -113,6 +116,16 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
# define ERTS_DECLARE_DUMMY(X) X
#endif
+#if !defined(__func__)
+# if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L
+# if !defined(__GNUC__) || __GNUC__ < 2
+# define __func__ "[unknown_function]"
+# else
+# define __func__ __FUNCTION__
+# endif
+# endif
+#endif
+
#if defined(DEBUG) || defined(ERTS_ENABLE_LOCK_CHECK)
# undef ERTS_CAN_INLINE
# define ERTS_CAN_INLINE 0
@@ -172,10 +185,16 @@ void erl_assert_error(char* expr, char* file, int line);
# define const
#endif
-#ifdef VXWORKS
-/* Replace VxWorks' printf with a real one that does fprintf(stdout, ...) */
-int real_printf(const char *fmt, ...);
-# define printf real_printf
+#undef __deprecated
+#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 0)
+# define __deprecated __attribute__((deprecated))
+#else
+# define __deprecated
+#endif
+#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 4)
+# define erts_align_attribute(SZ) __attribute__ ((aligned (SZ)))
+#else
+# define erts_align_attribute(SZ)
#endif
/* In VC++, noreturn is a declspec that has to be before the types,
@@ -185,12 +204,6 @@ int real_printf(const char *fmt, ...);
#if __GNUC__
# define __decl_noreturn
# define __noreturn __attribute__((noreturn))
-# undef __deprecated
-# if __GNUC__ >= 3
-# define __deprecated __attribute__((deprecated))
-# else
-# define __deprecated
-# endif
#else
# if defined(__WIN32__) && defined(_MSC_VER)
# define __noreturn
@@ -199,7 +212,6 @@ int real_printf(const char *fmt, ...);
# define __noreturn
# define __decl_noreturn
# endif
-# define __deprecated
#endif
/*
@@ -229,9 +241,11 @@ int real_printf(const char *fmt, ...);
#if SIZEOF_VOID_P == 8
#undef ARCH_32
#define ARCH_64
+#define ERTS_SIZEOF_TERM 8
#elif SIZEOF_VOID_P == 4
#define ARCH_32
#undef ARCH_64
+#define ERTS_SIZEOF_TERM 4
#else
#error Neither 32 nor 64 bit architecture
#endif
@@ -239,6 +253,8 @@ int real_printf(const char *fmt, ...);
# define HALFWORD_HEAP 1
# define HALFWORD_ASSERT 0
# define ASSERT_HALFWORD(COND) ASSERT(COND)
+# undef ERTS_SIZEOF_TERM
+# define ERTS_SIZEOF_TERM 4
#else
# define HALFWORD_HEAP 0
# define HALFWORD_ASSERT 0
@@ -365,6 +381,27 @@ typedef unsigned char byte;
#error 64-bit architecture, but no appropriate type to use for Uint64 and Sint64 found
#endif
+#ifdef WORDS_BIGENDIAN
+# define ERTS_HUINT_HVAL_HIGH 0
+# define ERTS_HUINT_HVAL_LOW 1
+#else
+# define ERTS_HUINT_HVAL_HIGH 1
+# define ERTS_HUINT_HVAL_LOW 0
+#endif
+#if ERTS_SIZEOF_TERM == 8
+typedef union {
+ Uint val;
+ Uint32 hval[2];
+} HUint;
+#elif ERTS_SIZEOF_TERM == 4
+typedef union {
+ Uint val;
+ Uint16 hval[2];
+} HUint;
+#else
+#error "Unsupported size of term"
+#endif
+
# define ERTS_EXTRA_DATA_ALIGN_SZ(X) \
(((size_t) 8) - (((size_t) (X)) & ((size_t) 7)))
@@ -471,38 +508,28 @@ static unsigned long zero_value = 0, one_value = 1;
# define SET_NONBLOCKING(fd) ioctlsocket((fd), FIONBIO, &one_value)
# else
-# ifdef VXWORKS
-# include <fcntl.h> /* xxxP added for O_WRONLY etc ... macro:s ... */
-# include <ioLib.h>
-static const int zero_value = 0, one_value = 1;
-# define SET_BLOCKING(fd) ioctl((fd), FIONBIO, (int)&zero_value)
-# define SET_NONBLOCKING(fd) ioctl((fd), FIONBIO, (int)&one_value)
-# define ERRNO_BLOCK EWOULDBLOCK
-
-# else
-# ifdef NB_FIONBIO /* Old BSD */
-# include <sys/ioctl.h>
+# ifdef NB_FIONBIO /* Old BSD */
+# include <sys/ioctl.h>
static const int zero_value = 0, one_value = 1;
-# define SET_BLOCKING(fd) ioctl((fd), FIONBIO, &zero_value)
-# define SET_NONBLOCKING(fd) ioctl((fd), FIONBIO, &one_value)
-# define ERRNO_BLOCK EWOULDBLOCK
-# else /* !NB_FIONBIO */
-# include <fcntl.h>
-# ifdef NB_O_NDELAY /* Nothing needs this? */
-# define NB_FLAG O_NDELAY
-# ifndef ERRNO_BLOCK /* allow override (e.g. EAGAIN) via Makefile */
-# define ERRNO_BLOCK EWOULDBLOCK
-# endif
-# else /* !NB_O_NDELAY */ /* The True Way - POSIX!:-) */
-# define NB_FLAG O_NONBLOCK
-# define ERRNO_BLOCK EAGAIN
-# endif /* !NB_O_NDELAY */
-# define SET_BLOCKING(fd) fcntl((fd), F_SETFL, \
- fcntl((fd), F_GETFL, 0) & ~NB_FLAG)
-# define SET_NONBLOCKING(fd) fcntl((fd), F_SETFL, \
- fcntl((fd), F_GETFL, 0) | NB_FLAG)
-# endif /* !NB_FIONBIO */
-# endif /* _WXWORKS_ */
+# define SET_BLOCKING(fd) ioctl((fd), FIONBIO, &zero_value)
+# define SET_NONBLOCKING(fd) ioctl((fd), FIONBIO, &one_value)
+# define ERRNO_BLOCK EWOULDBLOCK
+# else /* !NB_FIONBIO */
+# include <fcntl.h>
+# ifdef NB_O_NDELAY /* Nothing needs this? */
+# define NB_FLAG O_NDELAY
+# ifndef ERRNO_BLOCK /* allow override (e.g. EAGAIN) via Makefile */
+# define ERRNO_BLOCK EWOULDBLOCK
+# endif
+# else /* !NB_O_NDELAY */ /* The True Way - POSIX!:-) */
+# define NB_FLAG O_NONBLOCK
+# define ERRNO_BLOCK EAGAIN
+# endif /* !NB_O_NDELAY */
+# define SET_BLOCKING(fd) fcntl((fd), F_SETFL, \
+ fcntl((fd), F_GETFL, 0) & ~NB_FLAG)
+# define SET_NONBLOCKING(fd) fcntl((fd), F_SETFL, \
+ fcntl((fd), F_GETFL, 0) | NB_FLAG)
+# endif /* !NB_FIONBIO */
# endif /* !__WIN32__ */
#endif /* WANT_NONBLOCKING */
@@ -513,6 +540,10 @@ __decl_noreturn void __noreturn erl_exit(int n, char*, ...);
#define ERTS_ABORT_EXIT (INT_MIN + 1) /* no crash dump; only abort() */
#define ERTS_DUMP_EXIT (INT_MIN + 2) /* crash dump; then exit() */
+#define ERTS_INTERNAL_ERROR(What) \
+ erl_exit(ERTS_ABORT_EXIT, "%s:%d:%s(): Internal error: %s\n", \
+ __FILE__, __LINE__, __func__, What)
+
Eterm erts_check_io_info(void *p);
/* Size of misc memory allocated from system dependent code */
@@ -587,6 +618,7 @@ typedef struct _SysDriverOpts {
char *wd; /* Working directory. */
unsigned spawn_type; /* Bitfield of ERTS_SPAWN_DRIVER |
ERTS_SPAWN_EXTERNAL | both*/
+ int parallelism; /* Optimize for parallelism */
} SysDriverOpts;
extern char *erts_default_arg0;
@@ -626,7 +658,7 @@ typedef struct {
#define ERTS_SYS_DDLL_ERROR_INIT {NULL}
extern void erts_sys_ddll_free_error(ErtsSysDdllError*);
extern void erl_sys_ddll_init(void); /* to initialize mutexes etc */
-extern int erts_sys_ddll_open2(char *path, void **handle, ErtsSysDdllError*);
+extern int erts_sys_ddll_open2(const char *path, void **handle, ErtsSysDdllError*);
#define erts_sys_ddll_open(P,H) erts_sys_ddll_open2(P,H,NULL)
extern int erts_sys_ddll_open_noext(char *path, void **handle, ErtsSysDdllError*);
extern int erts_sys_ddll_load_driver_init(void *handle, void **function);
@@ -635,7 +667,7 @@ extern int erts_sys_ddll_close2(void *handle, ErtsSysDdllError*);
#define erts_sys_ddll_close(H) erts_sys_ddll_close2(H,NULL)
extern void *erts_sys_ddll_call_init(void *function);
extern void *erts_sys_ddll_call_nif_init(void *function);
-extern int erts_sys_ddll_sym2(void *handle, char *name, void **function, ErtsSysDdllError*);
+extern int erts_sys_ddll_sym2(void *handle, const char *name, void **function, ErtsSysDdllError*);
#define erts_sys_ddll_sym(H,N,F) erts_sys_ddll_sym2(H,N,F,NULL)
extern char *erts_sys_ddll_error(int code);
@@ -699,8 +731,8 @@ void fini_getenv_state(GETENV_STATE *);
/* xxxP */
void init_sys_float(void);
int sys_chars_to_double(char*, double*);
-int sys_double_to_chars(double, char*);
-void sys_get_pid(char *);
+int sys_double_to_chars(double, char*, size_t);
+void sys_get_pid(char *, size_t);
/* erts_sys_putenv() returns, 0 on success and a value != 0 on failure. */
int erts_sys_putenv(char *key, char *value);
@@ -858,13 +890,6 @@ erts_refc_read(erts_refc_t *refcp, erts_aint_t min_val)
extern int erts_use_kernel_poll;
#endif
-#if defined(VXWORKS)
-/* NOTE! sys_calloc2 does not exist on other
- platforms than VxWorks and OSE */
-void* sys_calloc2(Uint, Uint);
-#endif /* VXWORKS || OSE */
-
-
#define sys_memcpy(s1,s2,n) memcpy(s1,s2,n)
#define sys_memmove(s1,s2,n) memmove(s1,s2,n)
#define sys_memcmp(s1,s2,n) memcmp(s1,s2,n)
@@ -971,43 +996,6 @@ void erl_bin_write(unsigned char *, int, int);
# define DEBUGF(x)
#endif
-
-#ifdef VXWORKS
-/* This includes redefines of malloc etc
- this should be done after sys_alloc, etc, above */
-# include "reclaim.h"
-/*********************Malloc and friends************************
- * There is a problem with the naming of malloc and friends,
- * malloc is used throughout sys.c and the resolver to mean save_alloc,
- * but it should actually mean either sys_alloc or sys_alloc2,
- * so the definitions from reclaim_master.h are not any
- * good, i redefine the malloc family here, although it's quite
- * ugly, actually it would be preferrable to use the
- * names sys_alloc and so on throughout the offending code, but
- * that will be saved as an later exercise...
- * I also add an own calloc, to make the BSD resolver source happy.
- ***************************************************************/
-/* Undefine malloc and friends */
-# ifdef malloc
-# undef malloc
-# endif
-# ifdef calloc
-# undef calloc
-# endif
-# ifdef realloc
-# undef realloc
-# endif
-# ifdef free
-# undef free
-# endif
-/* Redefine malloc and friends */
-# define malloc sys_alloc
-# define calloc sys_calloc
-# define realloc sys_realloc
-# define free sys_free
-
-#endif
-
#ifdef __WIN32__
#ifdef ARCH_64
#define ERTS_ALLOC_ALIGN_BYTES 16
@@ -1023,23 +1011,20 @@ void erl_bin_write(unsigned char *, int, int);
#ifdef __WIN32__
-
void call_break_handler(void);
char* last_error(void);
char* win32_errorstr(int);
-
-
#endif
/************************************************************************
* Find out the native filename encoding of the process (look at locale of
* Unix processes and just do UTF16 on windows
************************************************************************/
-#define ERL_FILENAME_UNKNOWN 0
-#define ERL_FILENAME_LATIN1 1
-#define ERL_FILENAME_UTF8 2
-#define ERL_FILENAME_UTF8_MAC 3
-#define ERL_FILENAME_WIN_WCHAR 4
+#define ERL_FILENAME_UNKNOWN (0)
+#define ERL_FILENAME_LATIN1 (1)
+#define ERL_FILENAME_UTF8 (2)
+#define ERL_FILENAME_UTF8_MAC (3)
+#define ERL_FILENAME_WIN_WCHAR (4)
int erts_get_native_filename_encoding(void);
/* The set function is only to be used by erl_init! */
@@ -1049,4 +1034,3 @@ int erts_get_user_requested_filename_encoding(void);
void erts_init_sys_common_misc(void);
#endif
-
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index bd708ceee6..5261effef9 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -46,6 +46,7 @@
#include "erl_thr_queue.h"
#include "erl_sched_spec_pre_alloc.h"
#include "beam_bp.h"
+#include "erl_ptab.h"
#undef M_TRIM_THRESHOLD
#undef M_TOP_PAD
@@ -268,16 +269,42 @@ list_length(Eterm list)
return i;
}
-Uint erts_fit_in_bits(Uint n)
+static const struct {
+ Sint64 mask;
+ int bits;
+} fib_data[] = {{ERTS_I64_LITERAL(0x2), 1},
+ {ERTS_I64_LITERAL(0xc), 2},
+ {ERTS_I64_LITERAL(0xf0), 4},
+ {ERTS_I64_LITERAL(0xff00), 8},
+ {ERTS_I64_LITERAL(0xffff0000), 16},
+ {ERTS_I64_LITERAL(0xffffffff00000000), 32}};
+
+static ERTS_INLINE int
+fit_in_bits(Sint64 value, int start)
{
- Uint i;
+ int bits = 0;
+ int i;
- i = 0;
- while (n > 0) {
- i++;
- n >>= 1;
- }
- return i;
+ for (i = start; i >= 0; i--) {
+ if (value & fib_data[i].mask) {
+ value >>= fib_data[i].bits;
+ bits |= fib_data[i].bits;
+ }
+ }
+
+ bits++;
+
+ return bits;
+}
+
+int erts_fit_in_bits_int64(Sint64 value)
+{
+ return fit_in_bits(value, 5);
+}
+
+int erts_fit_in_bits_int32(Sint32 value)
+{
+ return fit_in_bits((Sint64) (Uint32) value, 4);
}
int
@@ -1640,12 +1667,20 @@ static int do_send_to_logger(Eterm tag, Eterm gleader, char *buf, int len)
}
#ifndef ERTS_SMP
- if (
#ifdef USE_THREADS
- !erts_get_scheduler_data() || /* Must be scheduler thread */
+ p = NULL;
+ if (erts_get_scheduler_data()) /* Must be scheduler thread */
#endif
- (p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0)) == NULL
- || p->status == P_RUNNING) {
+ {
+ p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0);
+ if (p) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (state & ERTS_PSFLG_RUNNING)
+ p = NULL;
+ }
+ }
+
+ if (!p) {
/* buf *always* points to a null terminated string */
erts_fprintf(stderr, "(no error logger present) %T: \"%s\"\n",
tag, buf);
@@ -2982,12 +3017,13 @@ buf_to_intlist(Eterm** hpp, char *buf, size_t len, Eterm tail)
** ;
**
** Return remaining bytes in buffer on success
-** -1 on overflow
-** -2 on type error (including that result would not be a whole number of bytes)
+** ERTS_IOLIST_TO_BUF_OVERFLOW on overflow
+** ERTS_IOLIST_TO_BUF_TYPE_ERROR on type error (including that result would not be a whole number of bytes)
*/
-int io_list_to_buf(Eterm obj, char* buf, int len)
+ErlDrvSizeT erts_iolist_to_buf(Eterm obj, char* buf, ErlDrvSizeT alloced_len)
{
+ ErlDrvSizeT len = (ErlDrvSizeT) alloced_len;
Eterm* objp;
DECLARE_ESTACK(s);
goto L_again;
@@ -3080,20 +3116,20 @@ int io_list_to_buf(Eterm obj, char* buf, int len)
L_type_error:
DESTROY_ESTACK(s);
- return -2;
+ return ERTS_IOLIST_TO_BUF_TYPE_ERROR;
L_overflow:
DESTROY_ESTACK(s);
- return -1;
+ return ERTS_IOLIST_TO_BUF_OVERFLOW;
}
/*
* Return 0 if successful, and non-zero if unsuccessful.
*/
-int erts_iolist_size(Eterm obj, Uint* sizep)
+int erts_iolist_size(Eterm obj, ErlDrvSizeT* sizep)
{
Eterm* objp;
- Uint size = 0;
+ Uint size = 0; /* Intentionally Uint due to halfword heap */
DECLARE_ESTACK(s);
goto L_again;
@@ -3145,7 +3181,7 @@ int erts_iolist_size(Eterm obj, Uint* sizep)
#undef SAFE_ADD
DESTROY_ESTACK(s);
- *sizep = size;
+ *sizep = (ErlDrvSizeT) size;
return ERTS_IOLIST_OK;
L_overflow_error:
@@ -3240,7 +3276,7 @@ ptimer_timeout(ErtsSmpPTimer *ptimer)
ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS,
ERTS_P2P_FLG_ALLOW_OTHER_X);
if (p) {
- if (!p->is_exiting
+ if (!ERTS_PROC_IS_EXITING(p)
&& !(ptimer->timer.flags & ERTS_PTMR_FLG_CANCELLED)) {
ASSERT(*ptimer->timer.timer_ref == ptimer);
*ptimer->timer.timer_ref = NULL;
@@ -3436,6 +3472,254 @@ void erts_silence_warn_unused_result(long unused)
}
+/*
+ * Interval counts
+ */
+void
+erts_interval_init(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ erts_atomic_init_nob(&icp->counter.atomic, 0);
+#else
+ erts_dw_aint_t dw;
+#ifdef ETHR_SU_DW_NAINT_T__
+ dw.dw_sint = 0;
+#else
+ dw.sint[ERTS_DW_AINT_HIGH_WORD] = 0;
+ dw.sint[ERTS_DW_AINT_LOW_WORD] = 0;
+#endif
+ erts_dw_atomic_init_nob(&icp->counter.atomic, &dw);
+
+#endif
+#ifdef DEBUG
+ icp->smp_api = 0;
+#endif
+}
+
+void
+erts_smp_interval_init(erts_interval_t *icp)
+{
+#ifdef ERTS_SMP
+ erts_interval_init(icp);
+#else
+ icp->counter.not_atomic = 0;
+#endif
+#ifdef DEBUG
+ icp->smp_api = 1;
+#endif
+}
+
+static ERTS_INLINE Uint64
+step_interval_nob(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_inc_read_nob(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &exp);
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_nob(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ }
+#endif
+}
+
+static ERTS_INLINE Uint64
+step_interval_relb(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_inc_read_relb(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &exp);
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_relb(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ }
+#endif
+}
+
+
+static ERTS_INLINE Uint64
+ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic)
+{
+ Uint64 curr_ic;
+#ifdef ARCH_64
+ curr_ic = (Uint64) erts_atomic_read_nob(&icp->counter.atomic);
+ if (curr_ic > ic)
+ return curr_ic;
+ return (Uint64) erts_atomic_inc_read_nob(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &exp);
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_nob(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+ }
+#endif
+}
+
+
+static ERTS_INLINE Uint64
+ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
+{
+ Uint64 curr_ic;
+#ifdef ARCH_64
+ curr_ic = (Uint64) erts_atomic_read_acqb(&icp->counter.atomic);
+ if (curr_ic > ic)
+ return curr_ic;
+ return (Uint64) erts_atomic_inc_read_acqb(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_acqb(&icp->counter.atomic, &exp);
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_acqb(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+ }
+#endif
+}
+
+Uint64
+erts_step_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return step_interval_nob(icp);
+}
+
+Uint64
+erts_step_interval_relb(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return step_interval_relb(icp);
+}
+
+Uint64
+erts_smp_step_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return step_interval_nob(icp);
+#else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+Uint64
+erts_smp_step_interval_relb(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return step_interval_relb(icp);
+#else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+Uint64
+erts_ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(!icp->smp_api);
+ return ensure_later_interval_nob(icp, ic);
+}
+
+Uint64
+erts_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(!icp->smp_api);
+ return ensure_later_interval_acqb(icp, ic);
+}
+
+Uint64
+erts_smp_ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return ensure_later_interval_nob(icp, ic);
+#else
+ if (icp->counter.not_atomic > ic)
+ return icp->counter.not_atomic;
+ else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+Uint64
+erts_smp_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return ensure_later_interval_acqb(icp, ic);
+#else
+ if (icp->counter.not_atomic > ic)
+ return icp->counter.not_atomic;
+ else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+
#ifdef DEBUG
/*
* Handy functions when using a debugger - don't use in the code!
@@ -3468,7 +3752,7 @@ Process *p;
void ppi(Eterm pid)
{
- pp(erts_pid2proc_unlocked(pid));
+ pp(erts_proc_lookup(pid));
}
void td(Eterm x)