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-rw-r--r--erts/emulator/beam/erl_process_dict.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_process_dict.c b/erts/emulator/beam/erl_process_dict.c
index 23e5bf737f..3ce707efda 100644
--- a/erts/emulator/beam/erl_process_dict.c
+++ b/erts/emulator/beam/erl_process_dict.c
@@ -82,6 +82,7 @@
static void pd_hash_erase(Process *p, Eterm id, Eterm *ret);
static void pd_hash_erase_all(Process *p);
static Eterm pd_hash_get_keys(Process *p, Eterm value);
+static Eterm pd_hash_get_all_keys(Process *p, ProcDict *pd);
static Eterm pd_hash_get_all(Process *p, ProcDict *pd);
static Eterm pd_hash_put(Process *p, Eterm id, Eterm value);
@@ -275,6 +276,16 @@ BIF_RETTYPE get_1(BIF_ALIST_1)
BIF_RET(ret);
}
+BIF_RETTYPE get_keys_0(BIF_ALIST_0)
+{
+ Eterm ret;
+
+ PD_CHECK(BIF_P->dictionary);
+ ret = pd_hash_get_all_keys(BIF_P,BIF_P->dictionary);
+ PD_CHECK(BIF_P->dictionary);
+ BIF_RET(ret);
+}
+
BIF_RETTYPE get_keys_1(BIF_ALIST_1)
{
Eterm ret;
@@ -412,6 +423,47 @@ Eterm erts_pd_hash_get(Process *p, Eterm id)
return am_undefined;
}
+#define PD_GET_TKEY(Dst,Src) \
+do { \
+ ASSERT(is_tuple((Src))); \
+ ASSERT(arityval(*((Eterm*)tuple_val((Src)))) == 2); \
+ (Dst) = ((Eterm*)tuple_val((Src)))[1]; \
+} while(0)
+
+static Eterm pd_hash_get_all_keys(Process *p, ProcDict *pd) {
+ Eterm* hp;
+ Eterm res = NIL;
+ Eterm tmp, tmp2;
+ unsigned int i;
+ unsigned int num;
+
+ if (pd == NULL) {
+ return res;
+ }
+
+ num = HASH_RANGE(pd);
+ hp = HAlloc(p, pd->numElements * 2);
+
+ for (i = 0; i < num; ++i) {
+ tmp = ARRAY_GET(pd, i);
+ if (is_boxed(tmp)) {
+ PD_GET_TKEY(tmp,tmp);
+ res = CONS(hp, tmp, res);
+ hp += 2;
+ } else if (is_list(tmp)) {
+ while (tmp != NIL) {
+ tmp2 = TCAR(tmp);
+ PD_GET_TKEY(tmp2,tmp2);
+ res = CONS(hp, tmp2, res);
+ hp += 2;
+ tmp = TCDR(tmp);
+ }
+ }
+ }
+ return res;
+}
+#undef PD_GET_TKEY
+
static Eterm pd_hash_get_keys(Process *p, Eterm value)
{
Eterm *hp;