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Merge pull request #4890 from xmake-io/signal
add os.signal #4889
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/*!A cross-platform build utility based on Lua | ||
* | ||
* 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. | ||
* | ||
* Copyright (C) 2015-present, TBOOX Open Source Group. | ||
* | ||
* @author ruki | ||
* @file signal.c | ||
* | ||
*/ | ||
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/* ////////////////////////////////////////////////////////////////////////////////////// | ||
* trace | ||
*/ | ||
#define TB_TRACE_MODULE_NAME "signal" | ||
#define TB_TRACE_MODULE_DEBUG (0) | ||
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/* ////////////////////////////////////////////////////////////////////////////////////// | ||
* includes | ||
*/ | ||
#include "prefix.h" | ||
#if defined(TB_CONFIG_OS_MACOSX) || defined(TB_CONFIG_OS_IOS) | ||
# include <unistd.h> | ||
# include <signal.h> | ||
#elif defined(TB_CONFIG_OS_LINUX) || defined(TB_CONFIG_OS_BSD) || defined(TB_CONFIG_OS_ANDROID) || defined(TB_CONFIG_OS_HAIKU) | ||
# include <unistd.h> | ||
# include <signal.h> | ||
#endif | ||
#ifdef TB_CONFIG_OS_BSD | ||
# include <sys/types.h> | ||
# include <sys/sysctl.h> | ||
# include <signal.h> | ||
#endif | ||
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/* ////////////////////////////////////////////////////////////////////////////////////// | ||
* types | ||
*/ | ||
typedef enum __xm_os_signal_e { | ||
XM_OS_SIGINT = 1 | ||
}xm_os_signal_e; | ||
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/* ////////////////////////////////////////////////////////////////////////////////////// | ||
* globals | ||
*/ | ||
static lua_State* g_lua = tb_null; | ||
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/* ////////////////////////////////////////////////////////////////////////////////////// | ||
* private implementation | ||
*/ | ||
static tb_void_t xm_os_signal_handler_impl(tb_int_t signo) | ||
{ | ||
// do callback(signo) | ||
lua_State* lua = g_lua; | ||
if (lua) | ||
{ | ||
tb_char_t name[64] = {0}; | ||
tb_snprintf(name, sizeof(name), "_SIGNAL_HANDLER_%d", signo); | ||
lua_getglobal(lua, name); | ||
lua_pushinteger(lua, signo); | ||
lua_call(lua, 1, 0); | ||
} | ||
} | ||
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#if defined(TB_CONFIG_OS_WINDOWS) | ||
static BOOL WINAPI xm_os_signal_handler(DWORD ctrl_type) | ||
{ | ||
if (ctrl_type == CTRL_C_EVENT) | ||
xm_os_signal_handler_impl(XM_OS_SIGINT); | ||
return TRUE; | ||
} | ||
#elif defined(SIGINT) | ||
static tb_void_t xm_os_signal_handler(tb_int_t signo_native) | ||
{ | ||
tb_int_t signo = -1; | ||
switch (signo_native) | ||
{ | ||
case SIGINT: | ||
signo = XM_OS_SIGINT; | ||
break; | ||
default: | ||
break; | ||
} | ||
if (signo >= 0) | ||
xm_os_signal_handler_impl(signo); | ||
} | ||
#endif | ||
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/* ////////////////////////////////////////////////////////////////////////////////////// | ||
* implementation | ||
*/ | ||
tb_int_t xm_os_signal(lua_State* lua) | ||
{ | ||
// check | ||
tb_assert_and_check_return_val(lua, 0); | ||
g_lua = lua; | ||
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// check signal handler | ||
if (!lua_isfunction(lua, 2)) | ||
return 0; | ||
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// save signal handler | ||
tb_int_t signo = (tb_int_t)luaL_checkinteger(lua, 1); | ||
tb_char_t name[64] = {0}; | ||
tb_snprintf(name, sizeof(name), "_SIGNAL_HANDLER_%d", signo); | ||
lua_pushvalue(lua, 2); | ||
lua_setglobal(lua, name); | ||
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#if defined(TB_CONFIG_OS_WINDOWS) | ||
if (signo == XM_OS_SIGINT) | ||
SetConsoleCtrlHandler(xm_os_signal_handler, TRUE); | ||
#elif defined(SIGINT) // for checking signal | ||
tb_int_t signo_native = -1; | ||
switch (signo) | ||
{ | ||
case XM_OS_SIGINT: | ||
#ifdef SIGINT | ||
signo_native = SIGINT; | ||
#endif | ||
break; | ||
default: | ||
break; | ||
} | ||
if (signo_native >= 0) | ||
signal(signo_native, xm_os_signal_handler); | ||
#endif | ||
return 0; | ||
} |
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