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sys_main.c
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sys_main.c
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/*
* Wolfenstein: Enemy Territory GPL Source Code
* Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company.
*
* ET: Legacy
* Copyright (C) 2012-2017 ET:Legacy team <mail@etlegacy.com>
*
* This file is part of ET: Legacy - http://www.etlegacy.com
*
* ET: Legacy is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ET: Legacy is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with ET: Legacy. If not, see <http://www.gnu.org/licenses/>.
*
* In addition, Wolfenstein: Enemy Territory GPL Source Code is also
* subject to certain additional terms. You should have received a copy
* of these additional terms immediately following the terms and conditions
* of the GNU General Public License which accompanied the source code.
* If not, please request a copy in writing from id Software at the address below.
*
* id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
*/
/**
* @file sys_main.c
*/
#include <signal.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/types.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include "sys_local.h"
#include "sys_loadlib.h"
#include "../qcommon/q_shared.h"
#include "../qcommon/qcommon.h"
#ifdef _WIN32
#include <windows.h>
#include "sys_win32.h"
#endif
#ifdef __APPLE__
#include <CoreFoundation/CoreFoundation.h>
#endif
static char binaryPath[MAX_OSPATH] = { 0 };
static char installPath[MAX_OSPATH] = { 0 };
#ifdef FEATURE_CURSES
static qboolean nocurses = qfalse;
void CON_Init_tty(void);
#endif
/**
* @brief Sys_SetBinaryPath
* @param[in] path
*/
void Sys_SetBinaryPath(const char *path)
{
Q_strncpyz(binaryPath, path, sizeof(binaryPath));
}
/**
* @brief Sys_BinaryPath
* @return
*/
char *Sys_BinaryPath(void)
{
return binaryPath;
}
/**
* @brief Sys_SetDefaultInstallPath
* @param[in] path
*/
void Sys_SetDefaultInstallPath(const char *path)
{
Q_strncpyz(installPath, path, sizeof(installPath));
}
/**
* @brief Sys_DefaultInstallPath
* @return
*/
char *Sys_DefaultInstallPath(void)
{
if (*installPath)
{
return installPath;
}
else
{
return Sys_Cwd();
}
}
/**
* @brief Sys_In_Restart_f
*/
void Sys_In_Restart_f(void)
{
IN_Restart();
}
#ifndef USE_WINDOWS_CONSOLE
/**
* @brief Handle new console input
*/
char *Sys_ConsoleInput(void)
{
return CON_Input();
}
#endif
/**
* @brief Writes pid to profile or to the homepath root if running a server
* @return qtrue if pid file successfully created
* otherwise qfalse if it wasn't possible to create a new pid file
*/
qboolean Sys_WritePIDFile(void)
{
fileHandle_t f;
// First, check if the pid file is already there
if (FS_FileInPathExists(com_pidfile->string))
{
// TODO: check if we are hijacking live pid file
/*
FS_FOpenFileRead(com_pidfile->string, &f, qtrue);
if(Sys_PIDIsRunning(pid))
{
Com_Printf("WARNING: another instance of ET:L is using this path!\n");
return qfalse;
}
*/
if (FS_Delete(com_pidfile->string) == 0) // stale pid from previous run
{
Com_Printf("WARNING: unable to delete old PID file!\n");
}
}
f = FS_FOpenFileWrite(com_pidfile->string);
if (f < 0)
{
Com_Printf("WARNING: can't write PID file!\n");
return qfalse;
}
else
{
Com_Printf("Creating PID file '%s'\n", com_pidfile->string);
}
FS_Printf(f, "%d", com_pid->integer);
FS_FCloseFile(f);
// track profile changes
Com_TrackProfile(com_pidfile->string);
return qtrue;
}
/**
* @brief Single exit point (regular exit or in case of error)
* @param[in] exitCode
*/
static __attribute__ ((noreturn)) void Sys_Exit(int exitCode)
{
CON_Shutdown();
#ifndef DEDICATED
SDL_Quit();
#endif
// fail safe: delete PID file on abnormal exit
// FIXME: normal exit pid deletion is done in Com_Shutdown
// why do we have 2 locations for this job?
// ... is this Com or Sys code?
if (exitCode > 0)
{
// Normal exit
// com_pidfile does not yet exist on early exit
if (Cvar_VariableString("com_pidfile")[0] != '\0')
{
if (FS_FileExists(Cvar_VariableString("com_pidfile")))
{
// FIXME: delete even when outside of homepath
if (remove(va("%s%c%s%c%s", Cvar_VariableString("fs_homepath"),
PATH_SEP, Cvar_VariableString("fs_game"),
PATH_SEP, Cvar_VariableString("com_pidfile"))) != 0)
{
// This is thrown when game game crashes before PID file is created
// f.e. when pak files are missing
// FIXME: try to create PID file earlier
Com_Printf("Sys_Exit warning - can't delete PID file %s%c%s%c%s\n", Cvar_VariableString("fs_homepath"),
PATH_SEP, Cvar_VariableString("fs_game"),
PATH_SEP, Cvar_VariableString("com_pidfile"));
}
else
{
Com_Printf("PID file removed.\n");
}
}
else
{
Com_Printf("Sys_Exit warning - PID file doesn't exist %s%c%s%c%s\n", Cvar_VariableString("fs_homepath"),
PATH_SEP, Cvar_VariableString("fs_game"),
PATH_SEP, Cvar_VariableString("com_pidfile"));
}
}
else
{
Com_Printf("Sys_Exit warning no PID file found to remove\n");
}
}
NET_Shutdown();
exit(exitCode);
}
/**
* @brief Sys_Quit
*/
void Sys_Quit(void)
{
Sys_Exit(0);
#ifdef USE_WINDOWS_CONSOLE
Sys_DestroyConsole();
#endif
}
#ifdef USE_WINDOWS_CONSOLE
extern void Sys_ClearViewlog_f(void);
#endif
/**
* @brief Sys_Init
*/
void Sys_Init(void)
{
Cmd_AddCommand("in_restart", Sys_In_Restart_f);
#ifdef USE_WINDOWS_CONSOLE
Cmd_AddCommand("clearviewlog", Sys_ClearViewlog_f);
#endif
Cvar_Set("arch", OS_STRING " " ARCH_STRING);
Cvar_Set("username", Sys_GetCurrentUser());
}
/**
* @brief Transform Q3 colour codes to ANSI escape sequences
* @param[in] msg
*/
void Sys_AnsiColorPrint(const char *msg)
{
static char buffer[MAXPRINTMSG];
int i, j, _found, length = 0;
// colors hash from http://wolfwiki.anime.net/index.php/Color_Codes
static int etAnsiHash[][6] =
{
// here should be black, but it's invisible in terminal
// so you see dark grey here. like in 9 color
{ 1, 30, 0, '0', 'p', 'P' },
{ 1, 31, 0, '1', 'q', 'Q' },
{ 1, 32, 0, '2', 'r', 'R' },
{ 1, 33, 0, '3', 's', 'S' },
{ 1, 34, 0, '4', 't', 'T' },
{ 1, 36, 0, '5', 'u', 'U' },
{ 1, 35, 0, '6', 'v', 'V' },
{ 1, 37, 0, '7', 'w', 'W' },
{ 38, 5, 208, '8', 'x', 'X' },
{ 1, 30, 0, '9', 'y', 'Y' },
{ 0, 37, 0, 'z', 'Z', ':' }, // the same
{ 0, 37, 0, '[', '{', ';' }, // --------
{ 0, 32, 0, '<', '\\', '|' },
{ 0, 33, 0, '=', ']', '}' },
{ 0, 34, 0, '>', '~', '^' },
{ 0, 31, 0, '?', '_', 0 },
{ 38, 5, 94, '@', '`', 0 },
{ 38, 5, 214, 'a', 'A', '!' },
{ 38, 5, 30, 'b', 'B', '"' },
{ 38, 5, 90, 'c', 'C', '#' },
{ 38, 5, 33, 'd', 'D', '$' },
{ 38, 5, 93, 'e', 'E', '%' },
{ 38, 5, 38, 'f', 'F', '&' },
{ 38, 5, 194, 'g', 'G', '\'' },
{ 38, 5, 29, 'h', 'H', '(' },
{ 38, 5, 197, 'i', 'I', ')' },
{ 38, 5, 124, 'j', 'J', '*' },
{ 38, 5, 130, 'k', 'K', '+' },
{ 38, 5, 179, 'l', 'L', ',' },
{ 38, 5, 143, 'm', 'M', '-' },
{ 38, 5, 229, 'n', 'N', '.' },
{ 38, 5, 228, 'o', 'O', '/' }
};
while (*msg)
{
if (Q_IsColorString(msg) || *msg == '\n' || *msg == '\\')
{
// First empty the buffer
if (length > 0)
{
buffer[length] = '\0';
fputs(buffer, stderr);
length = 0;
}
if (*msg == '\n')
{
// Issue a reset and then the newline
fputs("\033[0m\n", stderr);
msg++;
}
else if (*msg == '\\')
{
fputs("\033[0m\\", stderr);
msg++;
}
else if (*(msg + 1) == '7' && (*(msg + 2) == '"' || *(msg + 2) == '\'' || *(msg + 2) == '\0'))
{
fputs("\033[0m", stderr);
msg += 2;
}
else
{
// Print the color code
_found = 0;
for (i = 0; i < 32; i++)
{
if (_found)
{
break;
}
for (j = 3; j < 6; j++)
{
if (etAnsiHash[i][j] == 0)
{
break;
}
if (*(msg + 1) == etAnsiHash[i][j])
{
if (etAnsiHash[i][2] == 0)
{
Com_sprintf(buffer, sizeof(buffer), "\033[%d;%dm",
etAnsiHash[i][0], etAnsiHash[i][1]);
_found = 1;
break;
}
else
{
Com_sprintf(buffer, sizeof(buffer), "\033[%d;%d;%dm",
etAnsiHash[i][0], etAnsiHash[i][1], etAnsiHash[i][2]);
_found = 1;
break;
}
}
}
}
fputs(buffer, stderr);
msg += 2;
}
}
else
{
if (length >= MAXPRINTMSG - 1)
{
break;
}
buffer[length] = *msg;
length++;
msg++;
}
}
// Empty anything still left in the buffer
if (length > 0)
{
buffer[length] = '\0';
fputs(buffer, stderr);
}
}
/**
* @brief Sys_Print
* @param msg
*/
void Sys_Print(const char *msg)
{
#ifdef USE_WINDOWS_CONSOLE
Conbuf_AppendText(msg);
#else
CON_LogWrite(msg);
CON_Print(msg);
#endif
#if defined(LEGACY_DEBUG) && defined(_WIN32)
OutputDebugString(msg);
#endif
}
/**
* @brief Sys_Error
* @param[in] error
*/
void Sys_Error(const char *error, ...)
{
va_list argptr;
char string[1024];
#ifdef USE_WINDOWS_CONSOLE
MSG msg;
#endif
va_start(argptr, error);
Q_vsnprintf(string, sizeof(string), error, argptr);
va_end(argptr);
#ifdef _WIN32
Sys_Splash(qfalse);
#endif
#ifdef USE_WINDOWS_CONSOLE
Conbuf_AppendText(string);
Conbuf_AppendText("\n");
Sys_SetErrorText(string);
Sys_ShowConsoleWindow(1, qtrue);
IN_Shutdown();
// wait for the user to quit
while (1)
{
if (!GetMessage(&msg, NULL, 0, 0))
{
Com_Quit_f();
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
Sys_DestroyConsole();
#endif
Sys_ErrorDialog(string);
Sys_Exit(3);
}
/**
* @brief Sys_FileTime
* @param[in] path
* @return -1 if not present
*/
int Sys_FileTime(char *path)
{
struct stat buf;
if (stat(path, &buf) == -1)
{
return -1;
}
return buf.st_mtime;
}
/**
* @brief Sys_UnloadDll
* @param[in] dllHandle
*/
void Sys_UnloadDll(void *dllHandle)
{
if (!dllHandle)
{
Com_Printf("Sys_UnloadDll(NULL)\n");
return;
}
Sys_UnloadLibrary(dllHandle);
}
/**
* @brief First try to load library name from system library path,
* from executable path, then fs_basepath.
* @param[in] name
* @param[in] useSystemLib
* @return
*/
void *Sys_LoadDll(const char *name, qboolean useSystemLib)
{
void *dllhandle;
if (useSystemLib)
{
Com_Printf("Trying to load \"%s\"...\n", name);
}
if (!useSystemLib || !(dllhandle = Sys_LoadLibrary(name)))
{
const char *topDir;
char libPath[MAX_OSPATH];
topDir = Sys_BinaryPath();
if (!*topDir)
{
topDir = ".";
}
Com_Printf("Trying to load \"%s\" from \"%s\"...\n", name, topDir);
Com_sprintf(libPath, sizeof(libPath), "%s%c%s", topDir, PATH_SEP, name);
if (!(dllhandle = Sys_LoadLibrary(libPath)))
{
const char *basePath = Cvar_VariableString("fs_basepath");
if (!basePath || !*basePath)
{
basePath = ".";
}
if (FS_FilenameCompare(topDir, basePath))
{
Com_Printf("Trying to load \"%s\" from \"%s\"...\n", name, basePath);
Com_sprintf(libPath, sizeof(libPath), "%s%c%s", basePath, PATH_SEP, name);
dllhandle = Sys_LoadLibrary(libPath);
}
if (!dllhandle)
{
Com_Printf("Loading \"%s\" failed\n", name);
}
}
}
return dllhandle;
}
/**
* @brief Used by Sys_LoadGameDll to get handle on a mod library
*
* @param[in] base
* @param[in] gamedir
* @param[in] fname
*
* @return Handle to a mod library
*/
static void *Sys_TryLibraryLoad(const char *base, const char *gamedir, const char *fname)
{
void *libHandle;
char *fn;
#ifdef __APPLE__
Com_Printf("Sys_LoadDll -> Sys_TryLibraryLoad(%s, %s, %s)... \n", base, gamedir, fname);
libHandle = NULL;
// Incoming is (for example) "cgame_mac"
// What we may actually have is:
// 1) A zipped .bundle package
// 2) A .dylib without an extension
// 3) A .dylib with an extension we need to append.
//
// In older versions of OS X (pre 10.5), dylibs could not be unloaded allowing the host process to reclaim that address space.
// This is why .bundles were used instead. When W:ET originally shipped, it used used .bundle packages for the VM libraries,
// but to make them single files, it zipped that .bundle package and had no extension at all (ie just "cgame_mac"). But now
// that dylibs can be unloaded, there's no practical difference between the two (for W:ET's purposes), so using a single file
// dylib is simpler. That's why we now support a dylib with some backward compatibility to allow .bundles.
// 1: The zipped .bundle package
{
Com_Printf("-- Trying zipped .bundle... ");
fn = FS_BuildOSPath(base, gamedir, fname);
if (FS_Unzip(fn, qtrue))
{
char buffer[MAX_OSPATH];
Com_sprintf(buffer, sizeof(buffer), "%s.bundle/Contents/MacOS/%s", fname, fname);
fn = FS_BuildOSPath(Cvar_VariableString("fs_homepath"), gamedir, buffer);
libHandle = Sys_LoadLibrary(fn);
if (!libHandle)
{
Com_Printf("failed: \"%s\"\n", Sys_LibraryError());
}
else
{
Com_Printf("succeeded\n");
}
}
else
{
Com_Printf("failed. (Not a valid zip).\n");
}
}
// 2: The dylib without an extension
if (!libHandle)
{
fn = FS_BuildOSPath(base, gamedir, fname);
Com_Printf("-- Trying extension-less dylib... ");
libHandle = Sys_LoadLibrary(fn);
if (!libHandle)
{
Com_Printf("failed: \"%s\"\n", Sys_LibraryError());
}
else
{
Com_Printf("succeeded\n");
}
}
// 3: The dylib with an extension
if (!libHandle)
{
char buffer[MAX_OSPATH];
Com_sprintf(buffer, sizeof(buffer), "%s.dylib", fname);
fn = FS_BuildOSPath(Cvar_VariableString("fs_homepath"), gamedir, buffer);
Com_Printf("-- Trying dylib with extension... ");
libHandle = Sys_LoadLibrary(fn);
if (!libHandle)
{
Com_Printf("failed: \"%s\"\n", Sys_LibraryError());
}
else
{
Com_Printf("succeeded\n");
}
}
#else // __APPLE__
fn = FS_BuildOSPath(base, gamedir, fname);
Com_Printf("Sys_LoadDll(%s)... ", fn);
libHandle = Sys_LoadLibrary(fn);
if (!libHandle)
{
Com_Printf("failed: \"%s\"\n", Sys_LibraryError());
return NULL;
}
Com_Printf("succeeded\n");
#endif // __APPLE__
return libHandle;
}
/**
* @brief Loads a mod library.
* #1 look in fs_homepath
* #2 look in fs_basepath
* #3 try to revert to the default mod library
*
* @param[in] name
* @param[in] extract
* @param entryPoint
* @param systemcalls
*
* @return libHandle or NULL
*/
void *Sys_LoadGameDll(const char *name, qboolean extract,
intptr_t(**entryPoint) (int, ...),
intptr_t (*systemcalls)(intptr_t, ...))
{
void *libHandle;
void (*dllEntry)(intptr_t (*syscallptr)(intptr_t, ...));
char fname[MAX_OSPATH];
char *basepath;
char *homepath;
char *gamedir;
assert(name);
Com_sprintf(fname, sizeof(fname), Sys_GetDLLName("%s"), name);
// TODO: use fs_searchpaths from files.c
basepath = Cvar_VariableString("fs_basepath");
homepath = Cvar_VariableString("fs_homepath");
gamedir = Cvar_VariableString("fs_game");
// STORY TIME
//
//When doing an debug build just load the mod lib from the basepath as that will have the debug pointers
//
// Now the code always just unpacks new libraries from the packs on release builds.
// So the libraryfiles in the homepath are always refreshed with latest from the packs.
// This fixes many issues with clients loading old libraries from the mod paths.
//
// The way it used to work is described under (or in debug mode)..
//
// if the server is pure, extract the dlls from the mod_bin.pk3 so
// that they can be referenced
//
// If the server is not pure, then the
// lib must either already be in the homepath, or in the basepath,
// without being in a pak. For a pure server, it always grabs the lib
// from within a pak. This means there must be two copies of the lib!
//
// So now, if connecting to an impure server, and the lib was not
// loaded from homepath or the basepath, let's pull it out of the pak.
// This means we only *need* the copy that's in the pak, and will use
// it if another copy isn't found first.
#ifdef LEGACY_DEBUG
#define SEARCHPATH1 basepath
#define SEARCHPATH2 homepath
#define LIB_DO_UNPACK Cvar_VariableIntegerValue("sv_pure")
#else
#define LIB_DO_UNPACK qtrue
#define SEARCHPATH1 homepath
#define SEARCHPATH2 basepath
#endif
#ifndef DEDICATED
if (LIB_DO_UNPACK && extract)
{
if (!FS_CL_ExtractFromPakFile(homepath, gamedir, fname))
{
// no drama, we still check SEARCHPATH2
Com_Printf("Sys_LoadDll(%s/%s) failed to extract library from fs_homepath\n", gamedir, name);
}
else
{
Com_Printf("Sys_LoadGameDll -> FS_CL_ExtractFromPakFile(%s, %s, %s)\n", homepath, gamedir, fname);
}
}
#endif
libHandle = Sys_TryLibraryLoad(SEARCHPATH1, gamedir, fname);
if (!libHandle && SEARCHPATH2)
{
libHandle = Sys_TryLibraryLoad(SEARCHPATH2, gamedir, fname);
}
#ifndef DEDICATED
if (!libHandle && !LIB_DO_UNPACK && extract)
{
if (!FS_CL_ExtractFromPakFile(homepath, gamedir, fname))
{
Com_Printf("Sys_LoadDll(%s/%s) failed to extract library\n", gamedir, name);
return NULL;
}
Com_Printf("Sys_LoadGameDll -> FS_CL_ExtractFromPakFile(%s, %s, %s)\n", homepath, gamedir, fname);
libHandle = Sys_TryLibraryLoad(homepath, gamedir, fname);
}
#endif
if (!libHandle)
{
Com_Printf("Sys_LoadDll(%s/%s) failed to load library\n", gamedir, name);
return NULL;
}
dllEntry = (void(QDECL *)(intptr_t(QDECL *)(intptr_t, ...)))Sys_LoadFunction(libHandle, "dllEntry");
*entryPoint = (intptr_t(QDECL *)(int, ...))Sys_LoadFunction(libHandle, "vmMain");
if (!*entryPoint || !dllEntry)
{
Com_Printf("Sys_LoadDll(%s/%s) failed to find vmMain function:\n\"%s\" !\n", gamedir, name, Sys_LibraryError());
Sys_UnloadLibrary(libHandle);
return NULL;
}
Com_Printf("Sys_LoadDll(%s/%s) found vmMain function at %p\n", gamedir, name, *entryPoint);
dllEntry(systemcalls);
return libHandle;
}
/**
* @brief Sys_ParseArgs
* @param[in] argc
* @param[in] argv
*/
void Sys_ParseArgs(int argc, char **argv)
{
#ifdef FEATURE_CURSES
int i;
#endif
if (argc == 2)
{
if (!strcmp(argv[1], "--version") ||
!strcmp(argv[1], "-v"))
{
#ifdef DEDICATED
fprintf(stdout, Q3_VERSION " " CPUSTRING " dedicated server (%s)\n", __DATE__);
#else
fprintf(stdout, "Client: " ET_VERSION "\n");
fprintf(stdout, "Masked as: " FAKE_VERSION "\n");
#endif
Sys_Exit(0);
}
}
#ifdef FEATURE_CURSES
for (i = 1; i < argc; i++)
{
if (!strcmp(argv[i], "+nocurses") ||
!strcmp(argv[i], "--nocurses"))
{
nocurses = qtrue;
break;
}
}
#endif
}
/**
* @brief Sys_BuildCommandLine
* @param[in] argc
* @param[in] argv
* @param[out] buffer
* @param[in] bufferSize
*/
void Sys_BuildCommandLine(int argc, char **argv, char *buffer, size_t bufferSize)
{
int i = 0;
// Concatenate the command line for passing to Com_Init
for (i = 1; i < argc; i++)
{
const qboolean containsSpaces = (qboolean)(strchr(argv[i], ' ') != NULL);
// Allow URIs to be passed without +connect
if (!Q_strncmp(argv[i], "et://", 5) && Q_strncmp(argv[i - 1], "+connect", 8))
{
Q_strcat(buffer, bufferSize, "+connect ");
}
if (containsSpaces)
{
Q_strcat(buffer, bufferSize, "\"");
}
Q_strcat(buffer, bufferSize, argv[i]);
if (containsSpaces)
{
Q_strcat(buffer, bufferSize, "\"");
}
Q_strcat(buffer, bufferSize, " ");
}
}
#ifndef DEFAULT_BASEDIR
# define DEFAULT_BASEDIR Sys_BinaryPath()
#endif
/**
* @brief Sys_SigHandler
* @param[in] signal
*/
void Sys_SigHandler(int signal)
{
static qboolean signalcaught = qfalse;
if (signalcaught)
{
fprintf(stderr, "DOUBLE SIGNAL FAULT: Received signal %d, exiting...\n",
signal);
}
else
{
signalcaught = qtrue;
#ifndef DEDICATED
CL_Shutdown();
#endif
SV_Shutdown(va("Received signal %d", signal));
}
if (signal == SIGTERM || signal == SIGINT)
{
Sys_Exit(1);
}
else
{
Sys_Exit(2);
}
}
/**
* @brief Sys_SetUpConsoleAndSignals
*/
void Sys_SetUpConsoleAndSignals(void)
{
#ifndef USE_WINDOWS_CONSOLE
#ifdef FEATURE_CURSES
if (nocurses)
{
CON_Init_tty();
}
else
{
CON_Init();
}
#else
CON_Init();
#endif
#endif
signal(SIGILL, Sys_SigHandler);
signal(SIGFPE, Sys_SigHandler);
signal(SIGSEGV, Sys_SigHandler);
signal(SIGTERM, Sys_SigHandler);
signal(SIGINT, Sys_SigHandler);
}
/**
* @brief Main game loop
*/
void Sys_GameLoop(void)
{
#ifdef LEGACY_DEBUG
int startTime, endTime, totalMsec, countMsec;
startTime = endTime = totalMsec = countMsec = 0;
#endif
while (qtrue)
{
#if defined(_MSC_VER) && defined(LEGACY_DEBUG) && !defined(_WIN64)
// set low precision every frame, because some system calls
// reset it arbitrarily
_controlfp(_PC_24, _MCW_PC);
_controlfp(-1, _MCW_EM); // no exceptions, even if some crappy
// syscall turns them back on!
#endif
#ifdef LEGACY_DEBUG
startTime = Sys_Milliseconds();
#endif
// Improve input responsiveness by moving sampling to other side of framerate limiter - moved to Com_Frame()
//IN_Frame();
Com_Frame();
#ifdef LEGACY_DEBUG
endTime = Sys_Milliseconds();
totalMsec += endTime - startTime;
countMsec++;
if (com_speeds->integer)
{
Com_Printf("frame:%i total used:%i frame time:%i\n", countMsec, totalMsec, endTime - startTime);
}
#endif
}
}
/**
* @brief SDL_main
* @param[in] argc
* @param[in] argv
* @return
*/
int main(int argc, char **argv)
{
char commandLine[MAX_STRING_CHARS] = { 0 };
Sys_PlatformInit();
// Set the initial time base
Sys_Milliseconds();
#ifdef __APPLE__
// This is passed if we are launched by double-clicking
if (argc >= 2 && Q_strncmp(argv[1], "-psn", 4) == 0)
{