From c71408f7184090fee077e35d0220fc021d2817fc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Tue, 19 Nov 2013 11:38:36 +0100 Subject: erts: Test Maps with NIFs --- erts/emulator/test/nif_SUITE_data/nif_SUITE.c | 59 +++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) (limited to 'erts/emulator/test/nif_SUITE_data/nif_SUITE.c') diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c index 6f902e186d..a0316a7861 100644 --- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c +++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c @@ -1536,6 +1536,63 @@ static ERL_NIF_TERM call_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM } #endif +/* maps */ +static ERL_NIF_TERM maps_from_list(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{ + ERL_NIF_TERM cell = argv[0]; + ERL_NIF_TERM map = enif_make_new_map(env); + ERL_NIF_TERM tuple; + const ERL_NIF_TERM *pair; + int arity = -1; + + if (argc != 1 && !enif_is_list(env, cell)) return enif_make_badarg(env); + + /* assume sorted keys */ + + while (!enif_is_empty_list(env,cell)) { + if (!enif_get_list_cell(env, cell, &tuple, &cell)) return enif_make_badarg(env); + if (enif_get_tuple(env,tuple,&arity,&pair)) { + enif_make_map_put(env, map, pair[0], pair[1], &map); + } + } + + return map; +} + +static ERL_NIF_TERM sorted_list_from_maps(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { + + ERL_NIF_TERM map = argv[0]; + ERL_NIF_TERM list_f = enif_make_list(env, 0); /* NIL */ + ERL_NIF_TERM list_b = enif_make_list(env, 0); /* NIL */ + ERL_NIF_TERM key, value; + ErlNifMapIterator iter; + + if (argc != 1 && !enif_is_map(env, map)) + return enif_make_badarg(env); + + if(!enif_map_iterator_create(env, map, &iter, ERL_NIF_MAP_ITERATOR_HEAD)) + return enif_make_badarg(env); + + while(enif_map_iterator_get_pair(env,&iter,&key,&value)) { + list_f = enif_make_list_cell(env, enif_make_tuple2(env, key, value), list_f); + enif_map_iterator_next(env,&iter); + } + + enif_map_iterator_destroy(env, &iter); + + if(!enif_map_iterator_create(env, map, &iter, ERL_NIF_MAP_ITERATOR_TAIL)) + return enif_make_badarg(env); + + while(enif_map_iterator_get_pair(env,&iter,&key,&value)) { + list_b = enif_make_list_cell(env, enif_make_tuple2(env, key, value), list_b); + enif_map_iterator_prev(env,&iter); + } + + enif_map_iterator_destroy(env, &iter); + + return enif_make_tuple2(env, list_f, list_b); +} + static ErlNifFunc nif_funcs[] = { {"lib_version", 0, lib_version}, @@ -1589,6 +1646,8 @@ static ErlNifFunc nif_funcs[] = #ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT {"call_dirty_nif", 3, call_dirty_nif}, #endif + {"maps_from_list", 1, maps_from_list}, + {"sorted_list_from_maps", 1, sorted_list_from_maps} }; ERL_NIF_INIT(nif_SUITE,nif_funcs,load,reload,upgrade,unload) -- cgit v1.2.3