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-rw-r--r--erts/emulator/beam/erl_process_dict.c71
1 files changed, 51 insertions, 20 deletions
diff --git a/erts/emulator/beam/erl_process_dict.c b/erts/emulator/beam/erl_process_dict.c
index aee88841ae..38be3938cd 100644
--- a/erts/emulator/beam/erl_process_dict.c
+++ b/erts/emulator/beam/erl_process_dict.c
@@ -239,39 +239,70 @@ erts_erase_dicts(Process *p)
/*
* Called from process_info/1,2.
*/
-Eterm erts_dictionary_copy(Process *p, ProcDict *pd)
+Eterm erts_dictionary_copy(ErtsHeapFactory *hfact, ProcDict *pd, Uint reserve_size)
{
- Eterm* hp;
- Eterm* heap_start;
- Eterm res = NIL;
- Eterm tmp, tmp2;
+ Eterm res;
unsigned int i, num;
+ Uint *sz;
+ Uint szi, rsz = reserve_size;
- if (pd == NULL) {
- return res;
- }
+ if (pd == NULL)
+ return NIL;
PD_CHECK(pd);
num = HASH_RANGE(pd);
- heap_start = hp = (Eterm *) erts_alloc(ERTS_ALC_T_TMP,
- sizeof(Eterm) * pd->numElements * 2);
- for (i = 0; i < num; ++i) {
- tmp = ARRAY_GET(pd, i);
+ sz = (Uint *) erts_alloc(ERTS_ALC_T_TMP, sizeof(Uint) * pd->numElements);
+
+ for (i = 0, szi = 0; i < num; ++i) {
+ Eterm tmp = ARRAY_GET(pd, i);
if (is_boxed(tmp)) {
+ Uint size;
ASSERT(is_tuple(tmp));
- res = CONS(hp, tmp, res);
- hp += 2;
- } else if (is_list(tmp)) {
+ size = size_object(tmp) + 2;
+ sz[szi++] = size;
+ rsz += size;
+ }
+ else if (is_list(tmp)) {
while (tmp != NIL) {
- tmp2 = TCAR(tmp);
- res = CONS(hp, tmp2, res);
- hp += 2;
+ Uint size = size_object(TCAR(tmp)) + 2;
+ sz[szi++] = size;
+ rsz += size;
+ tmp = TCDR(tmp);
+ }
+ }
+ }
+
+ res = NIL;
+
+ for (i = 0, szi = 0; i < num; ++i) {
+ Eterm tmp = ARRAY_GET(pd, i);
+ if (is_boxed(tmp)) {
+ Uint size;
+ Eterm el, *hp;
+ ASSERT(is_tuple(tmp));
+ size = sz[szi++];
+ rsz -= size;
+ hp = erts_produce_heap(hfact, size, rsz);
+ el = copy_struct(tmp, size-2, &hp, hfact->off_heap);
+ res = CONS(hp, el, res);
+ }
+ else if (is_list(tmp)) {
+ while (tmp != NIL) {
+ Uint size = sz[szi++];
+ Eterm el, *hp;
+ rsz -= size;
+ hp = erts_produce_heap(hfact, size, rsz);
+ el = copy_struct(TCAR(tmp), size-2, &hp, hfact->off_heap);
+ res = CONS(hp, el, res);
tmp = TCDR(tmp);
}
}
}
- res = copy_object(res, p);
- erts_free(ERTS_ALC_T_TMP, (void *) heap_start);
+
+ ASSERT(rsz == reserve_size);
+
+ erts_free(ERTS_ALC_T_TMP, sz);
+
return res;
}