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-rw-r--r--erts/emulator/beam/bif.c194
1 files changed, 165 insertions, 29 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 6b1ce823cb..68b3350d7f 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -2168,20 +2168,146 @@ BIF_RETTYPE tl_1(BIF_ALIST_1)
/**********************************************************************/
/* return the size of an I/O list */
-BIF_RETTYPE iolist_size_1(BIF_ALIST_1)
+static Eterm
+accumulate(Eterm acc, Uint size)
{
- Sint size = io_list_len(BIF_ARG_1);
+ if (is_non_value(acc)) {
+ /*
+ * There is no pre-existing accumulator. Allocate a
+ * bignum buffer with one extra word to be used if
+ * the bignum grows in the future.
+ */
+ Eterm* hp = (Eterm *) erts_alloc(ERTS_ALC_T_TEMP_TERM,
+ (BIG_UINT_HEAP_SIZE+1) *
+ sizeof(Eterm));
+ return uint_to_big(size, hp);
+ } else {
+ Eterm* big;
+ int need_heap;
- if (size == -1) {
- BIF_ERROR(BIF_P, BADARG);
- } else if (IS_USMALL(0, (Uint) size)) {
- BIF_RET(make_small(size));
+ /*
+ * Add 'size' to 'acc' in place. There is always one
+ * extra word allocated in case the bignum grows by one word.
+ */
+ big = big_val(acc);
+ need_heap = BIG_NEED_SIZE(BIG_SIZE(big));
+ acc = big_plus_small(acc, size, big);
+ if (BIG_NEED_SIZE(big_size(acc)) > need_heap) {
+ /*
+ * The extra word has been consumed. Grow the
+ * allocation by one word.
+ */
+ big = (Eterm *) erts_realloc(ERTS_ALC_T_TEMP_TERM,
+ big_val(acc),
+ (need_heap+1) * sizeof(Eterm));
+ acc = make_big(big);
+ }
+ return acc;
+ }
+}
+
+static Eterm
+consolidate(Process* p, Eterm acc, Uint size)
+{
+ Eterm* hp;
+
+ if (is_non_value(acc)) {
+ return erts_make_integer(size, p);
} else {
- Eterm* hp = HAlloc(BIF_P, BIG_UINT_HEAP_SIZE);
- BIF_RET(uint_to_big(size, hp));
+ Eterm* big;
+ Uint sz;
+ Eterm res;
+
+ acc = accumulate(acc, size);
+ big = big_val(acc);
+ sz = BIG_NEED_SIZE(BIG_SIZE(big));
+ hp = HAlloc(p, sz);
+ res = make_big(hp);
+ while (sz--) {
+ *hp++ = *big++;
+ }
+ erts_free(ERTS_ALC_T_TEMP_TERM, (void *) big_val(acc));
+ return res;
}
}
+BIF_RETTYPE iolist_size_1(BIF_ALIST_1)
+{
+ Eterm obj, hd;
+ Eterm* objp;
+ Uint size = 0;
+ Uint cur_size;
+ Uint new_size;
+ Eterm acc = THE_NON_VALUE;
+ DECLARE_ESTACK(s);
+
+ obj = BIF_ARG_1;
+ goto L_again;
+
+ while (!ESTACK_ISEMPTY(s)) {
+ obj = ESTACK_POP(s);
+ L_again:
+ if (is_list(obj)) {
+ L_iter_list:
+ objp = list_val(obj);
+ hd = CAR(objp);
+ obj = CDR(objp);
+ /* Head */
+ if (is_byte(hd)) {
+ size++;
+ if (size == 0) {
+ acc = accumulate(acc, (Uint) -1);
+ size = 1;
+ }
+ } else if (is_binary(hd) && binary_bitsize(hd) == 0) {
+ cur_size = binary_size(hd);
+ if ((new_size = size + cur_size) >= size) {
+ size = new_size;
+ } else {
+ acc = accumulate(acc, size);
+ size = cur_size;
+ }
+ } else if (is_list(hd)) {
+ ESTACK_PUSH(s, obj);
+ obj = hd;
+ goto L_iter_list;
+ } else if (is_not_nil(hd)) {
+ goto L_type_error;
+ }
+ /* Tail */
+ if (is_list(obj)) {
+ goto L_iter_list;
+ } else if (is_binary(obj) && binary_bitsize(obj) == 0) {
+ cur_size = binary_size(obj);
+ if ((new_size = size + cur_size) >= size) {
+ size = new_size;
+ } else {
+ acc = accumulate(acc, size);
+ size = cur_size;
+ }
+ } else if (is_not_nil(obj)) {
+ goto L_type_error;
+ }
+ } else if (is_binary(obj) && binary_bitsize(obj) == 0) {
+ cur_size = binary_size(obj);
+ if ((new_size = size + cur_size) >= size) {
+ size = new_size;
+ } else {
+ acc = accumulate(acc, size);
+ size = cur_size;
+ }
+ } else if (is_not_nil(obj)) {
+ goto L_type_error;
+ }
+ }
+
+ DESTROY_ESTACK(s);
+ BIF_RET(consolidate(BIF_P, acc, size));
+
+ L_type_error:
+ DESTROY_ESTACK(s);
+ BIF_ERROR(BIF_P, BADARG);
+}
/**********************************************************************/
@@ -3215,20 +3341,32 @@ BIF_RETTYPE garbage_collect_1(BIF_ALIST_1)
BIF_ERROR(BIF_P, BADARG);
}
- rp = erts_pid2proc_not_running(BIF_P, ERTS_PROC_LOCK_MAIN,
+ if (BIF_P->id == BIF_ARG_1)
+ rp = BIF_P;
+ else {
+#ifdef ERTS_SMP
+ rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN,
BIF_ARG_1, ERTS_PROC_LOCK_MAIN);
- if (!rp)
- BIF_RET(am_false);
- if (rp == ERTS_PROC_LOCK_BUSY)
- ERTS_BIF_YIELD1(bif_export[BIF_garbage_collect_1], BIF_P, BIF_ARG_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);
+#endif
+ if (!rp)
+ BIF_RET(am_false);
+ }
/* The GC cost is taken for the process executing this BIF. */
FLAGS(rp) |= F_NEED_FULLSWEEP;
reds = erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity);
- if (BIF_P != rp)
+#ifdef ERTS_SMP
+ if (BIF_P != rp) {
+ erts_resume(rp, ERTS_PROC_LOCK_MAIN);
erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_MAIN);
+ }
+#endif
BIF_RET2(am_true, reds);
}
@@ -3270,6 +3408,7 @@ BIF_RETTYPE ports_0(BIF_ALIST_0)
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
@@ -3281,21 +3420,18 @@ BIF_RETTYPE ports_0(BIF_ALIST_0)
erts_smp_atomic_set(&erts_dead_ports_ptr,
(erts_aint_t) (port_buf + erts_max_ports));
- next_ss = erts_smp_atomic_inctest(&erts_ports_snapshot);
+ next_ss = erts_smp_atomic32_inctest(&erts_ports_snapshot);
- if (erts_smp_atomic_read(&erts_ports_alive) > 0) {
- erts_aint_t i;
- 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);
+ 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(&erts_dead_ports_ptr,
@@ -3360,7 +3496,7 @@ BIF_RETTYPE erts_debug_display_1(BIF_ALIST_1)
erts_dsprintf_buf_t *dsbufp = erts_create_tmp_dsbuf(64);
pres = erts_dsprintf(dsbufp, "%.*T\n", INT_MAX, BIF_ARG_1);
if (pres < 0)
- erl_exit(1, "Failed to convert term to string: %d (s)\n",
+ erl_exit(1, "Failed to convert term to string: %d (%s)\n",
-pres, erl_errno_id(-pres));
hp = HAlloc(BIF_P, 2*dsbufp->str_len); /* we need length * 2 heap words */
res = buf_to_intlist(&hp, dsbufp->str, dsbufp->str_len, NIL);
@@ -3478,7 +3614,7 @@ term2list_dsprintf(Process *p, Eterm term)
erts_dsprintf_buf_t *dsbufp = erts_create_tmp_dsbuf(64);
pres = erts_dsprintf(dsbufp, "%T", term);
if (pres < 0)
- erl_exit(1, "Failed to convert term to list: %d (s)\n",
+ erl_exit(1, "Failed to convert term to list: %d (%s)\n",
-pres, erl_errno_id(-pres));
hp = HAlloc(p, 2*dsbufp->str_len); /* we need length * 2 heap words */
res = buf_to_intlist(&hp, dsbufp->str, dsbufp->str_len, NIL);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 02:11:02 +0000