aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/erl_nif.c
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/beam/erl_nif.c')
-rw-r--r--erts/emulator/beam/erl_nif.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 1d337d9792..f883b3f1e3 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -2934,6 +2934,44 @@ ERL_NIF_TERM enif_make_new_map(ErlNifEnv* env)
return make_flatmap(mp);
}
+int enif_make_map_from_arrays(ErlNifEnv *env,
+ ERL_NIF_TERM keys[],
+ ERL_NIF_TERM values[],
+ size_t cnt,
+ ERL_NIF_TERM *map_out)
+{
+ ErtsHeapFactory factory;
+ int succeeded;
+
+#ifdef ERTS_NIF_ASSERT_IN_ENV
+ size_t index = 0;
+
+ while (index < cnt) {
+ ASSERT_IN_ENV(env, keys[index], index, "key");
+ ASSERT_IN_ENV(env, values[index], index, "value");
+ index++;
+ }
+#endif
+
+ flush_env(env);
+
+ erts_factory_proc_prealloc_init(&factory, env->proc,
+ cnt * 2 + MAP_HEADER_FLATMAP_SZ + 1);
+
+ (*map_out) = erts_map_from_ks_and_vs(&factory, keys, values, cnt);
+ succeeded = (*map_out) != THE_NON_VALUE;
+
+ if (!succeeded) {
+ erts_factory_undo(&factory);
+ }
+
+ erts_factory_close(&factory);
+
+ cache_env(env);
+
+ return succeeded;
+}
+
int enif_make_map_put(ErlNifEnv* env,
Eterm map_in,
Eterm key,