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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, Xmake Open Source Community.
*
* @author TitanSnow
* @file getwinsize.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "getwinsize"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
#if defined(TB_CONFIG_OS_WINDOWS) && !defined(TB_COMPILER_LIKE_UNIX)
#include <windows.h>
#else
#include <sys/ioctl.h>
#include <errno.h> // for errno
#include <unistd.h> // for STDOUT_FILENO
#endif
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
// get console window size
tb_int_t xm_os_getwinsize(lua_State *lua) {
tb_assert_and_check_return_val(lua, 0);
// init default window size (we will not consider winsize limit if cannot get it)
tb_int_t w = TB_MAXS16, h = TB_MAXS16;
// get winsize
#if defined(TB_CONFIG_OS_WINDOWS) && !defined(TB_COMPILER_LIKE_UNIX)
CONSOLE_SCREEN_BUFFER_INFO csbi;
if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) {
w = (tb_int_t)csbi.dwSize.X;
h = (tb_int_t)csbi.dwSize.Y;
}
#elif defined(TB_CONFIG_OS_SOLARIS)
// Solaris doesn't support winsize/TIOCGWINSZ, use default values
#else
struct winsize size;
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) == 0) {
w = (tb_int_t)size.ws_col;
h = (tb_int_t)size.ws_row;
}
#endif
/* local winsize = os.getwinsize()
*
* return
* {
* width = -1 or ..
* , height = -1 or ..
* }
*/
lua_newtable(lua);
lua_pushstring(lua, "width");
lua_pushinteger(lua, w);
lua_settable(lua, -3);
lua_pushstring(lua, "height");
lua_pushinteger(lua, h);
lua_settable(lua, -3);
return 1;
}
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