erts: Add NIFs for Maps

- int enif_is_map(ErlNifEnv* env, ERL_NIF_TERM map)
- int enif_get_map_size(ErlNifEnv *env, ERL_NIF_TERM, int*)
- ERL_NIF_TERM enif_make_new_map(ErlNifEnv *env)
- int enif_make_map_put(ErlNifEnv *env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM value, ERL_NIF_TERM* map_out)
- int enif_get_map_value(ErlNifEnv *env, ERL_NIF_TERM map, ERL_NIF_TERM key, ERL_NIF_TERM* value)
- int enif_find_map_value(ErlNifEnv *env, ERL_NIF_TERM map, ERL_NIF_TERM key, ERL_NIF_TERM* value)
- int enif_make_map_update(ErlNifEnv *env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM value, ERL_NIF_TERM* map_out)
- int enif_make_map_remove(ErlNifEnv *env, ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM* map_out)

- int  enif_map_iterator_create(ErlNifEnv *env, ERL_NIF_TERM map, ErlNifMapIterator *iter)
- void enif_map_iterator_destroy(ErlNifEnv *env, ErlNifMapIterator *iter)
- int  enif_map_iterator_next(ErlNifEnv *env, ErlNifMapIterator *iter)
- int  enif_map_iterator_get_pair(ErlNifEnv *env, ErlNifMapIterator *iter, ERL_NIF_TERM *key, ERL_NIF_TERM *value)

1 files changed, 6 insertions, 0 deletions

diff --git a/erts/emulator/beam/erl_map.h b/erts/emulator/beam/erl_map.h
index 4f0d26e100..616ecd24ce 100644
--- a/erts/emulator/beam/erl_map.h
+++ b/erts/emulator/beam/erl_map.h
@@ -62,5 +62,11 @@ typedef struct map_s {
 #define MAP_HEADER             _make_header(1,_TAG_HEADER_MAP)
 #define MAP_HEADER_SIZE        (sizeof(map_t) / sizeof(Eterm))
 
+Eterm erts_maps_put(Process *p, Eterm key, Eterm value, Eterm map);
+int   erts_maps_update(Process *p, Eterm key, Eterm value, Eterm map, Eterm *res);
+int   erts_maps_find(Eterm key, Eterm map, Eterm *value);
+int   erts_maps_get(Eterm key, Eterm map, Eterm *value);
+int   erts_maps_remove(Process *p, Eterm key, Eterm map, Eterm *res);
+
 #endif