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xash3d-fwgs/engine/common/system.c

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/*
sys_win.c - platform dependent code
Copyright (C) 2011 Uncle Mike
This program 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.
This program 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.
*/
#include "common.h"
#include "mathlib.h"
#include <time.h>
#include <stdlib.h>
#ifdef XASH_SDL
#include <SDL.h>
#endif
#ifndef _WIN32
#include <unistd.h>
#include <signal.h>
#include <dlfcn.h>
#ifndef __ANDROID__
extern char **environ;
#include <pwd.h>
#endif
#endif
#include "menu_int.h" // _UPDATE_PAGE macro
qboolean error_on_exit = false; // arg for exit();
#define DEBUG_BREAK
#if defined _WIN32 && !defined XASH_SDL
#include <winbase.h>
#endif
/*
================
Sys_DoubleTime
================
*/
double GAME_EXPORT Sys_DoubleTime( void )
{
#if XASH_TIMER == TIMER_WIN32
static LARGE_INTEGER g_PerformanceFrequency;
static LARGE_INTEGER g_ClockStart;
LARGE_INTEGER CurrentTime;
if( !g_PerformanceFrequency.QuadPart )
{
QueryPerformanceFrequency( &g_PerformanceFrequency );
QueryPerformanceCounter( &g_ClockStart );
}
QueryPerformanceCounter( &CurrentTime );
return (double)( CurrentTime.QuadPart - g_ClockStart.QuadPart ) / (double)( g_PerformanceFrequency.QuadPart );
#elif XASH_TIMER == TIMER_SDL
static longtime_t g_PerformanceFrequency;
static longtime_t g_ClockStart;
longtime_t CurrentTime;
if( !g_PerformanceFrequency )
{
g_PerformanceFrequency = SDL_GetPerformanceFrequency();
g_ClockStart = SDL_GetPerformanceCounter();
}
CurrentTime = SDL_GetPerformanceCounter();
return (double)( CurrentTime - g_ClockStart ) / (double)( g_PerformanceFrequency );
#elif XASH_TIMER == TIMER_LINUX
static longtime_t g_PerformanceFrequency;
static longtime_t g_ClockStart;
longtime_t CurrentTime;
struct timespec ts;
if( !g_PerformanceFrequency )
{
struct timespec res;
if( !clock_getres(CLOCK_MONOTONIC, &res) )
g_PerformanceFrequency = 1000000000LL/res.tv_nsec;
}
clock_gettime(CLOCK_MONOTONIC, &ts);
return (double) ts.tv_sec + (double) ts.tv_nsec/1000000000.0;
#endif
}
#ifdef GDB_BREAK
#include <fcntl.h>
qboolean Sys_DebuggerPresent( void )
{
char buf[1024];
int status_fd = open( "/proc/self/status", O_RDONLY );
if ( status_fd == -1 )
return 0;
ssize_t num_read = read( status_fd, buf, sizeof( buf ) );
if ( num_read > 0 )
{
static const char TracerPid[] = "TracerPid:";
const byte *tracer_pid;
buf[num_read] = 0;
tracer_pid = (const byte*)Q_strstr( buf, TracerPid );
if( !tracer_pid )
return false;
//printf( "%s\n", tracer_pid );
while( *tracer_pid < '0' || *tracer_pid > '9' )
if( *tracer_pid++ == '\n' )
return false;
//printf( "%s\n", tracer_pid );
return !!Q_atoi( (const char*)tracer_pid );
}
return false;
}
#undef DEBUG_BREAK
#ifdef __i386__
#define DEBUG_BREAK \
if( Sys_DebuggerPresent() ) \
asm volatile("int $3;")
#else
#define DEBUG_BREAK \
if( Sys_DebuggerPresent() ) \
raise( SIGINT )
#endif
#endif
#if defined _WIN32 && !defined XASH_64BIT
#ifdef _MSC_VER
BOOL WINAPI IsDebuggerPresent(void);
#define DEBUG_BREAK if( IsDebuggerPresent() ) \
_asm{ int 3 }
#else
#define DEBUG_BREAK if( IsDebuggerPresent() ) \
asm volatile("int $3;")
#endif
#endif
/*
================
Sys_GetClipboardData
create buffer, that contain clipboard
================
*/
char *Sys_GetClipboardData( void )
{
static char data[1024];
char *cliptext;
data[0] = '\0';
#ifdef XASH_SDL
cliptext = SDL_GetClipboardText();
if( cliptext )
{
Q_strncpy( data, cliptext, sizeof( data ) );
SDL_free( cliptext );
}
#endif // XASH_SDL
return data;
}
/*
================
Sys_SetClipboardData
write screenshot into clipboard
================
*/
void Sys_SetClipboardData( const byte *buffer, size_t size )
{
#ifdef XASH_SDL
SDL_SetClipboardText((char *)buffer);
#endif
}
/*
================
Sys_Sleep
freeze application for some time
================
*/
void Sys_Sleep( int msec )
{
if( !msec )
return;
msec = min( msec, 1000 );
#if XASH_TIMER == TIMER_WIN32
Sleep( msec );
#elif XASH_TIMER == TIMER_SDL
SDL_Delay( msec );
#elif XASH_TIEMR == TIMER_LINUX
usleep( msec * 1000 );
#endif
}
/*
================
Sys_GetCurrentUser
returns username for current profile
================
*/
char *Sys_GetCurrentUser( void )
{
#if defined(_WIN32)
static string s_userName;
unsigned long size = sizeof( s_userName );
if( GetUserName( s_userName, &size ))
return s_userName;
#elif !defined(__ANDROID__)
uid_t uid = geteuid();
struct passwd *pw = getpwuid( uid );
if( pw )
return pw->pw_name;
#endif
return "Player";
}
#if (defined(__linux__) && !defined(__ANDROID__)) || defined (__FreeBSD__) || defined (__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
static qboolean Sys_FindExecutable( const char *baseName, char *buf, size_t size )
{
char *envPath;
char *part;
size_t length;
size_t baseNameLength;
size_t needTrailingSlash;
if( !baseName || !baseName[0] )
return false;
envPath = getenv( "PATH" );
if( !envPath )
return false;
baseNameLength = Q_strlen( baseName );
while( *envPath )
{
part = Q_strchr( envPath, ':' );
if( part )
length = part - envPath;
else
length = Q_strlen( envPath );
if( length > 0 )
{
needTrailingSlash = ( envPath[length - 1] == '/' ) ? 0 : 1;
if( length + baseNameLength + needTrailingSlash < size )
{
Q_strncpy( buf, envPath, length + 1 );
if( needTrailingSlash )
Q_strcpy( buf + length, "/" );
Q_strcpy( buf + length + needTrailingSlash, baseName );
buf[length + needTrailingSlash + baseNameLength] = '\0';
if( access( buf, X_OK ) == 0 )
return true;
}
}
envPath += length;
if( *envPath == ':' )
envPath++;
}
return false;
}
#endif
/*
=================
Sys_ShellExecute
=================
*/
void Sys_ShellExecute( const char *path, const char *parms, qboolean shouldExit )
{
#ifdef _WIN32
if( !Q_strcmp( path, GENERIC_UPDATE_PAGE ) || !Q_strcmp( path, PLATFORM_UPDATE_PAGE ))
path = DEFAULT_UPDATE_PAGE;
ShellExecute( NULL, "open", path, parms, NULL, SW_SHOW );
#elif (defined(__linux__) && !defined (__ANDROID__)) || defined (__FreeBSD__) || defined (__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
if( !Q_strcmp( path, GENERIC_UPDATE_PAGE ) || !Q_strcmp( path, PLATFORM_UPDATE_PAGE ))
path = DEFAULT_UPDATE_PAGE;
char xdgOpen[128];
if( Sys_FindExecutable( OPEN_COMMAND, xdgOpen, sizeof( xdgOpen ) ) )
{
const char *argv[] = {xdgOpen, path, NULL};
pid_t id = fork( );
if( id == 0 )
{
execve( xdgOpen, (char **)argv, environ );
fprintf( stderr, "error opening %s %s", xdgOpen, path );
_exit( 1 );
}
}
else MsgDev( D_WARN, "Could not find "OPEN_COMMAND" utility\n" );
#elif defined(__ANDROID__) && !defined(XASH_DEDICATED)
Android_ShellExecute( path, parms );
#endif
if( shouldExit )
Sys_Quit();
}
/*
==================
Sys_ParseCommandLine
==================
*/
void Sys_ParseCommandLine( int argc, const char** argv )
{
const char *blank = "censored";
int i;
host.argc = argc;
host.argv = argv;
if( !host.change_game ) return;
for( i = 0; i < host.argc; i++ )
{
// we don't want to return to first game
if( !Q_stricmp( "-game", host.argv[i] )) host.argv[i] = (char *)blank;
// probably it's timewaster, because engine rejected second change
else if( !Q_stricmp( "+game", host.argv[i] )) host.argv[i] = (char *)blank;
// you sure that map exists in new game?
else if( !Q_stricmp( "+map", host.argv[i] )) host.argv[i] = (char *)blank;
// just stupid action
else if( !Q_stricmp( "+load", host.argv[i] )) host.argv[i] = (char *)blank;
// changelevel beetwen games? wow it's great idea!
else if( !Q_stricmp( "+changelevel", host.argv[i] )) host.argv[i] = (char *)blank;
}
}
/*
==================
Sys_MergeCommandLine
==================
*/
void Sys_MergeCommandLine( void )
{
const char *blank = "censored";
int i;
if( !host.change_game ) return;
for( i = 0; i < host.argc; i++ )
{
// second call
if( Host_IsDedicated() && !Q_strnicmp( "+menu_", host.argv[i], 6 ))
host.argv[i] = (char *)blank;
}
}
/*
================
Sys_CheckParm
Returns the position (1 to argc-1) in the program's argument list
where the given parameter apears, or 0 if not present
================
*/
int Sys_CheckParm( const char *parm )
{
int i;
for( i = 1; i < host.argc; i++ )
{
if( !host.argv[i] ) continue;
if( !Q_stricmp( parm, host.argv[i] ))
return i;
}
return 0;
}
/*
================
Sys_GetParmFromCmdLine
Returns the argument for specified parm
================
*/
qboolean _Sys_GetParmFromCmdLine( const char *parm, char *out, size_t size )
{
int argc = Sys_CheckParm( parm );
if( !argc || !out || !host.argv[argc + 1] )
return false;
Q_strncpy( out, host.argv[argc+1], size );
return true;
}
qboolean Sys_GetIntFromCmdLine( const char* argName, int *out )
{
int argIndex = Sys_CheckParm( argName );
if( argIndex < 1 || argIndex + 1 >= host.argc || !host.argv[argIndex + 1] )
{
*out = 0;
return false;
}
*out = Q_atoi( host.argv[argIndex + 1] );
return true;
}
void Sys_SendKeyEvents( void )
{
#ifdef _WIN32
MSG msg;
while( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ))
{
if( !GetMessage( &msg, NULL, 0, 0 ))
Sys_Quit ();
TranslateMessage( &msg );
DispatchMessage( &msg );
}
#endif
}
//=======================================================================
// DLL'S MANAGER SYSTEM
//=======================================================================
qboolean Sys_LoadLibrary( dll_info_t *dll )
{
const dllfunc_t *func;
string errorstring;
// check errors
if( !dll ) return false; // invalid desc
if( dll->link ) return true; // already loaded
if( !dll->name || !*dll->name )
return false; // nothing to load
MsgDev( D_NOTE, "Sys_LoadLibrary: Loading %s", dll->name );
if( dll->fcts )
{
// lookup export table
for( func = dll->fcts; func && func->name != NULL; func++ )
*func->func = NULL;
}
if( !dll->link ) dll->link = LoadLibrary ( dll->name ); // environment pathes
// no DLL found
if( !dll->link )
{
Q_snprintf( errorstring, sizeof( errorstring ), "Sys_LoadLibrary: couldn't load %s\n", dll->name );
goto error;
}
// Get the function adresses
for( func = dll->fcts; func && func->name != NULL; func++ )
{
if( !( *func->func = Sys_GetProcAddress( dll, func->name )))
{
Q_snprintf( errorstring, sizeof( errorstring ), "Sys_LoadLibrary: %s missing or invalid function (%s)\n", dll->name, func->name );
goto error;
}
}
MsgDev( D_NOTE, " - ok\n" );
return true;
error:
MsgDev( D_NOTE, " - failed\n" );
Sys_FreeLibrary( dll ); // trying to free
if( dll->crash ) Sys_Error( errorstring );
else MsgDev( D_ERROR, errorstring );
return false;
}
void* Sys_GetProcAddress( dll_info_t *dll, const char* name )
{
if( !dll || !dll->link ) // invalid desc
return NULL;
return (void *)GetProcAddress( dll->link, name );
}
qboolean Sys_FreeLibrary( dll_info_t *dll )
{
// invalid desc or alredy freed
if( !dll || !dll->link )
return false;
if( host.status == HOST_CRASHED )
{
// we need to hold down all modules, while MSVC can find error
MsgDev( D_NOTE, "Sys_FreeLibrary: hold %s for debugging\n", dll->name );
return false;
}
else MsgDev( D_NOTE, "Sys_FreeLibrary: Unloading %s\n", dll->name );
FreeLibrary( dll->link );
dll->link = NULL;
return true;
}
/*
================
Sys_WaitForQuit
wait for 'Esc' key will be hit
================
*/
void Sys_WaitForQuit( void )
{
#ifdef _WIN32
MSG msg;
Con_RegisterHotkeys();
msg.message = 0;
// wait for the user to quit
while( msg.message != WM_QUIT )
{
if( PeekMessage( &msg, 0, 0, 0, PM_REMOVE ))
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
else Sys_Sleep( 20 );
}
#endif
}
/*
================
Sys_Warn
Just messagebox
================
*/
void Sys_Warn( const char *format, ... )
{
va_list argptr;
char text[MAX_SYSPATH];
DEBUG_BREAK;
va_start( argptr, format );
Q_vsnprintf( text, MAX_SYSPATH, format, argptr );
va_end( argptr );
Msg( "Sys_Warn: %s\n", text );
if( !Host_IsDedicated() ) // dedicated server should not hang on messagebox
MSGBOX(text);
}
/*
================
Sys_Error
NOTE: we must prepare engine to shutdown
before call this
================
*/
void Sys_Error( const char *error, ... )
{
va_list argptr;
char text[MAX_SYSPATH];
DEBUG_BREAK;
if( host.status == HOST_ERR_FATAL )
return; // don't multiple executes
// make sure what console received last message
if( host.change_game ) Sys_Sleep( 200 );
error_on_exit = true;
host.status = HOST_ERR_FATAL;
va_start( argptr, error );
Q_vsprintf( text, error, argptr );
va_end( argptr );
SV_SysError( text );
if( !Host_IsDedicated() )
{
#ifdef XASH_SDL
if( host.hWnd ) SDL_HideWindow( host.hWnd );
#endif
}
if( host_developer.value )
{
#ifdef _WIN32
Con_ShowConsole( true );
Con_DisableInput(); // disable input line for dedicated server
#endif
Sys_Print( text ); // print error message
Sys_WaitForQuit();
}
else
{
#ifdef _WIN32
Con_ShowConsole( false );
#endif
MSGBOX( text );
}
Sys_Quit();
}
#ifdef __EMSCRIPTEN__
/* strange glitchy bug on emscripten
_exit->_Exit->asm._exit->_exit
As we do not need atexit(), just throw hidden exception
*/
#include <emscripten.h>
#define exit my_exit
void my_exit(int ret)
{
emscripten_cancel_main_loop();
printf("exit(%d)\n", ret);
EM_ASM(if(showElement)showElement('reload', true);throw 'SimulateInfiniteLoop');
}
#endif
/*
================
Sys_Quit
================
*/
void Sys_Quit( void )
{
Host_Shutdown();
exit( error_on_exit );
}
/*
================
Sys_Print
print into window console
================
*/
void Sys_Print( const char *pMsg )
{
if( !Host_IsDedicated() )
Con_Print( pMsg );
#ifdef _WIN32
{
const char *msg;
static char buffer[MAX_PRINT_MSG];
static char logbuf[MAX_PRINT_MSG];
char *b = buffer;
char *c = logbuf;
int i = 0;
if( host.type == HOST_NORMAL )
Con_Print( pMsg );
// if the message is REALLY long, use just the last portion of it
if( Q_strlen( pMsg ) > sizeof( buffer ) - 1 )
msg = pMsg + Q_strlen( pMsg ) - sizeof( buffer ) + 1;
else msg = pMsg;
// copy into an intermediate buffer
while( msg[i] && (( b - buffer ) < sizeof( buffer ) - 1 ))
{
if( msg[i] == '\n' && msg[i+1] == '\r' )
{
b[0] = '\r';
b[1] = c[0] = '\n';
b += 2, c++;
i++;
}
else if( msg[i] == '\r' )
{
b[0] = c[0] = '\r';
b[1] = '\n';
b += 2, c++;
}
else if( msg[i] == '\n' )
{
b[0] = '\r';
b[1] = c[0] = '\n';
b += 2, c++;
}
else if( msg[i] == '\35' || msg[i] == '\36' || msg[i] == '\37' )
{
i++; // skip console pseudo graph
}
else if( IsColorString( &msg[i] ))
{
i++; // skip color prefix
}
else
{
if( msg[i] == '\1' || msg[i] == '\2' )
i++;
*b = *c = msg[i];
b++, c++;
}
i++;
}
*b = *c = 0; // terminator
Con_WinPrint( buffer );
}
#endif
Sys_PrintLog( pMsg );
// Rcon_Print( pMsg );
}
/*
================
MsgDev
formatted developer message
================
*/
void MsgDev( int type, const char *pMsg, ... )
{
static char text[MAX_PRINT_MSG];
va_list argptr;
if( type >= D_REPORT && host_developer.value < DEV_EXTENDED )
return;
va_start( argptr, pMsg );
Q_vsnprintf( text, sizeof( text ) - 1, pMsg, argptr );
va_end( argptr );
switch( type )
{
case D_WARN:
Sys_Print( va( "^3Warning:^7 %s", text ));
break;
case D_ERROR:
Sys_Print( va( "^1Error:^7 %s", text ));
break;
case D_INFO:
case D_NOTE:
case D_REPORT:
Sys_Print( text );
break;
}
}
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