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Diffstat (limited to 'erts/emulator/beam/erl_bif_info.c')
-rw-r--r--erts/emulator/beam/erl_bif_info.c202
1 files changed, 98 insertions, 104 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 6f9e507228..55450e397f 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -617,17 +617,13 @@ static void collect_one_target_monitor(ErtsMonitor *mon, void *vmicp)
}
typedef struct {
- Process *c_p;
- ErtsProcLocks c_p_locks;
ErtsMonitorSuspend **smi;
Uint smi_i;
Uint smi_max;
- int sz;
+ Uint sz;
} ErtsSuspendMonitorInfoCollection;
-#define ERTS_INIT_SUSPEND_MONITOR_INFOS(SMIC, CP, CPL) do { \
- (SMIC).c_p = (CP); \
- (SMIC).c_p_locks = (CPL); \
+#define ERTS_INIT_SUSPEND_MONITOR_INFOS(SMIC) do { \
(SMIC).smi = NULL; \
(SMIC).smi_i = (SMIC).smi_max = 0; \
(SMIC).sz = 0; \
@@ -660,34 +656,26 @@ do { \
static void
collect_one_suspend_monitor(ErtsMonitor *mon, void *vsmicp)
{
- ErtsMonitorSuspend *smon = erts_monitor_suspend(mon);
- ErtsSuspendMonitorInfoCollection *smicp = vsmicp;
- Process *suspendee = erts_pid2proc(smicp->c_p,
- smicp->c_p_locks,
- mon->other.item,
- 0);
- if (suspendee) { /* suspendee is alive */
- Sint a, p;
- if (smon->active) {
- smon->active += smon->pending;
- smon->pending = 0;
- }
+ if (mon->type == ERTS_MON_TYPE_SUSPEND) {
+ Sint count;
+ erts_aint_t mstate;
+ ErtsMonitorSuspend *msp;
+ ErtsSuspendMonitorInfoCollection *smicp;
- ASSERT((smon->active && !smon->pending)
- || (smon->pending && !smon->active));
+ msp = (ErtsMonitorSuspend *) erts_monitor_to_data(mon);
+ smicp = vsmicp;
ERTS_EXTEND_SUSPEND_MONITOR_INFOS(smicp);
- smicp->smi[smicp->smi_i] = smon;
+ smicp->smi[smicp->smi_i] = msp;
smicp->sz += 2 /* cons */ + 4 /* 3-tuple */;
- a = (Sint) smon->active; /* quiet compiler warnings */
- p = (Sint) smon->pending; /* on 64-bit machines */
+ mstate = erts_atomic_read_nob(&msp->state);
- if (!IS_SSMALL(a))
- smicp->sz += BIG_UINT_HEAP_SIZE;
- if (!IS_SSMALL(p))
+ count = (Sint) (mstate & ERTS_MSUSPEND_STATE_COUNTER_MASK);
+ if (!IS_SSMALL(count))
smicp->sz += BIG_UINT_HEAP_SIZE;
+
smicp->smi_i++;
}
}
@@ -1075,8 +1063,10 @@ process_info_bif(Process *c_p, Eterm pid, Eterm opt, int always_wrap, int pi2)
if (c_p->common.id == pid) {
int local_only = c_p->flags & F_LOCAL_SIGS_ONLY;
- int sreds = ERTS_BIF_REDS_LEFT(c_p);
- int sres;
+ int sres, sreds, reds_left;
+
+ reds_left = ERTS_BIF_REDS_LEFT(c_p);
+ sreds = reds_left;
if (!local_only) {
erts_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ);
@@ -1085,15 +1075,19 @@ process_info_bif(Process *c_p, Eterm pid, Eterm opt, int always_wrap, int pi2)
}
sres = erts_proc_sig_handle_incoming(c_p, &state, &sreds, sreds, !0);
+
+ BUMP_REDS(c_p, (int) sreds);
+ reds_left -= sreds;
+
if (state & ERTS_PSFLG_EXITING) {
c_p->flags &= ~F_LOCAL_SIGS_ONLY;
goto exited;
}
- if (!sres) {
+ if (!sres | (reds_left <= 0)) {
/*
- * More signals to handle; need to yield and continue.
- * Prevent fetching of more signals by setting
- * local-sigs-only flag.
+ * More signals to handle or out of reds; need
+ * to yield and continue. Prevent fetching of
+ * more signals by setting local-sigs-only flag.
*/
c_p->flags |= F_LOCAL_SIGS_ONLY;
goto yield;
@@ -1166,6 +1160,7 @@ process_info_bif(Process *c_p, Eterm pid, Eterm opt, int always_wrap, int pi2)
else {
if (flags & ERTS_PI_FLAG_FORCE_SIG_SEND)
goto send_signal;
+ state = ERTS_PSFLG_RUNNING; /* fail state... */
rp = erts_try_lock_sig_free_proc(pid, locks, &state);
if (!rp)
goto undefined;
@@ -1627,56 +1622,56 @@ process_info_aux(Process *c_p,
case ERTS_PI_IX_SUSPENDING: {
ErtsSuspendMonitorInfoCollection smic;
int i;
- Eterm item;
- erts_proc_lock(rp, ERTS_PROC_LOCK_STATUS);
+ ERTS_INIT_SUSPEND_MONITOR_INFOS(smic);
- ERTS_INIT_SUSPEND_MONITOR_INFOS(smic,
- c_p,
- (c_p == rp
- ? ERTS_PROC_LOCK_MAIN
- : 0) | ERTS_PROC_LOCK_STATUS);
-
- erts_monitor_tree_foreach(rp->suspend_monitors,
- &collect_one_suspend_monitor,
- &smic);
+ erts_monitor_tree_foreach(ERTS_P_MONITORS(rp),
+ collect_one_suspend_monitor,
+ (void *) &smic);
reserve_size += smic.sz;
res = NIL;
for (i = 0; i < smic.smi_i; i++) {
- Sint a = (Sint) smic.smi[i]->active; /* quiet compiler warnings */
- Sint p = (Sint) smic.smi[i]->pending; /* on 64-bit machines... */
- Eterm active;
- Eterm pending;
+ ErtsMonitorSuspend *msp;
+ erts_aint_t mstate;
+ Sint ci;
+ Eterm ct, active, pending, item;
Uint sz = 4 + 2;
- if (!IS_SSMALL(a))
- sz += BIG_UINT_HEAP_SIZE;
- if (!IS_SSMALL(p))
- sz += BIG_UINT_HEAP_SIZE;
+
+ msp = smic.smi[i];
+ mstate = erts_atomic_read_nob(&msp->state);
+
+ ci = (Sint) (mstate & ERTS_MSUSPEND_STATE_COUNTER_MASK);
+ if (!IS_SSMALL(ci))
+ sz += BIG_UINT_HEAP_SIZE;
ERTS_PI_UNRESERVE(reserve_size, sz);
hp = erts_produce_heap(hfact, sz, reserve_size);
- if (IS_SSMALL(a))
- active = make_small(a);
- else {
- active = small_to_big(a, hp);
- hp += BIG_UINT_HEAP_SIZE;
- }
- if (IS_SSMALL(p))
- pending = make_small(p);
- else {
- pending = small_to_big(p, hp);
- hp += BIG_UINT_HEAP_SIZE;
- }
- item = TUPLE3(hp, smic.smi[i]->mon.other.item, active, pending);
+ if (IS_SSMALL(ci))
+ ct = make_small(ci);
+ else {
+ ct = small_to_big(ci, hp);
+ hp += BIG_UINT_HEAP_SIZE;
+ }
+
+ if (mstate & ERTS_MSUSPEND_STATE_FLG_ACTIVE) {
+ active = ct;
+ pending = make_small(0);
+ }
+ else {
+ active = make_small(0);
+ pending = ct;
+ }
+
+ ASSERT(is_internal_pid(msp->md.origin.other.item));
+
+ item = TUPLE3(hp, msp->md.origin.other.item, active, pending);
hp += 4;
res = CONS(hp, item, res);
}
- erts_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
-
*reds += (Uint) smic.smi_i / 4;
ERTS_DESTROY_SUSPEND_MONITOR_INFOS(smic);
@@ -3637,26 +3632,46 @@ BIF_RETTYPE is_process_alive_1(BIF_ALIST_1)
BIF_ERROR(BIF_P, BADARG);
}
-BIF_RETTYPE process_display_2(BIF_ALIST_2)
+static Eterm
+process_display(Process *c_p, void *arg, int *redsp, ErlHeapFragment **bpp)
{
- Process *rp;
+ if (redsp)
+ *redsp = 1;
- if (BIF_ARG_2 != am_backtrace)
- BIF_ERROR(BIF_P, BADARG);
+ if (ERTS_PROC_IS_EXITING(c_p))
+ return am_badarg;
- rp = erts_pid2proc_nropt(BIF_P, ERTS_PROC_LOCK_MAIN,
- BIF_ARG_1, ERTS_PROC_LOCKS_ALL);
- if(!rp) {
- BIF_ERROR(BIF_P, BADARG);
- }
- if (rp == ERTS_PROC_LOCK_BUSY)
- ERTS_BIF_YIELD2(bif_export[BIF_process_display_2], BIF_P,
- BIF_ARG_1, BIF_ARG_2);
- erts_stack_dump(ERTS_PRINT_STDERR, NULL, rp);
- erts_proc_unlock(rp, (BIF_P == rp
- ? ERTS_PROC_LOCKS_ALL_MINOR
- : ERTS_PROC_LOCKS_ALL));
- BIF_RET(am_true);
+ erts_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
+ erts_stack_dump(ERTS_PRINT_STDERR, NULL, c_p);
+ erts_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
+
+ return am_true;
+}
+
+
+BIF_RETTYPE erts_internal_process_display_2(BIF_ALIST_2)
+{
+ Eterm res;
+
+ if (BIF_ARG_2 != am_backtrace)
+ BIF_RET(am_badarg);
+
+ if (BIF_P->common.id == BIF_ARG_1) {
+ res = process_display(BIF_P, NULL, NULL, NULL);
+ BIF_RET(res);
+ }
+
+ if (is_not_internal_pid(BIF_ARG_1))
+ BIF_RET(am_badarg);
+
+ res = erts_proc_sig_send_rpc_request(BIF_P, BIF_ARG_1,
+ !0,
+ process_display,
+ NULL);
+ if (is_non_value(res))
+ BIF_RET(am_badarg);
+
+ BIF_RET(res);
}
/* this is a general call which return some possibly useful information */
@@ -4597,27 +4612,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
BIF_RET(am_true);
}
}
- else if (ERTS_IS_ATOM_STR("not_running_optimization", BIF_ARG_1)) {
- int old_use_opt, use_opt;
- switch (BIF_ARG_2) {
- case am_true:
- use_opt = 1;
- break;
- case am_false:
- use_opt = 0;
- break;
- default:
- BIF_ERROR(BIF_P, BADARG);
- }
-
- erts_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_thr_progress_block();
- old_use_opt = !erts_disable_proc_not_running_opt;
- erts_disable_proc_not_running_opt = !use_opt;
- erts_thr_progress_unblock();
- erts_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- BIF_RET(old_use_opt ? am_true : am_false);
- }
else if (ERTS_IS_ATOM_STR("wait", BIF_ARG_1)) {
if (ERTS_IS_ATOM_STR("deallocations", BIF_ARG_2)) {
int flag = ERTS_DEBUG_WAIT_COMPLETED_DEALLOCATIONS;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 15:44:07 +0000