diff options
Diffstat (limited to '3rdparty/luv/src/signal.c')
-rw-r--r-- | 3rdparty/luv/src/signal.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/3rdparty/luv/src/signal.c b/3rdparty/luv/src/signal.c new file mode 100644 index 00000000000..48ace2bf601 --- /dev/null +++ b/3rdparty/luv/src/signal.c @@ -0,0 +1,72 @@ +/* + * Copyright 2014 The Luvit Authors. All Rights Reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ +#include "luv.h" + +static uv_signal_t* luv_check_signal(lua_State* L, int index) { + uv_signal_t* handle = luv_checkudata(L, index, "uv_signal"); + luaL_argcheck(L, handle->type == UV_SIGNAL && handle->data, index, "Expected uv_signal_t"); + return handle; +} + +static int luv_new_signal(lua_State* L) { + uv_signal_t* handle = luv_newuserdata(L, sizeof(*handle)); + int ret = uv_signal_init(luv_loop(L), handle); + if (ret < 0) { + lua_pop(L, 1); + return luv_error(L, ret); + } + handle->data = luv_setup_handle(L); + return 1; +} + +static void luv_signal_cb(uv_signal_t* handle, int signum) { + lua_State* L = luv_state(handle->loop); + luv_handle_t* data = handle->data; + lua_pushstring(L, luv_sig_num_to_string(signum)); + luv_call_callback(L, data, LUV_SIGNAL, 1); +} + +static int luv_signal_start(lua_State* L) { + uv_signal_t* handle = luv_check_signal(L, 1); + int signum, ret; + if (lua_isnumber(L, 2)) { + signum = lua_tointeger(L, 2); + } + else if (lua_isstring(L, 2)) { + signum = luv_sig_string_to_num(luaL_checkstring(L, 2)); + luaL_argcheck(L, signum, 2, "Invalid Signal name"); + } + else { + return luaL_argerror(L, 2, "Missing Signal name"); + } + + if (!lua_isnoneornil(L, 3)) { + luv_check_callback(L, handle->data, LUV_SIGNAL, 3); + } + ret = uv_signal_start(handle, luv_signal_cb, signum); + if (ret < 0) return luv_error(L, ret); + lua_pushinteger(L, ret); + return 1; +} + +static int luv_signal_stop(lua_State* L) { + uv_signal_t* handle = luv_check_signal(L, 1); + int ret = uv_signal_stop(handle); + if (ret < 0) return luv_error(L, ret); + lua_pushinteger(L, ret); + return 1; +} |