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halflife-sdk-steam/dedicated/sys_ded.cpp
2002-12-23 00:00:00 +00:00

1084 lines
19 KiB
C++

//========= Copyright © 1996-2002, Valve LLC, All rights reserved. ============
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================
#ifdef _WIN32
#include <windows.h>
#define snprintf _snprintf
#define vsnprintf _vsnprintf
#else
#include <string.h>
#include <dlfcn.h>
#include <stdarg.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/time.h>
#include <malloc.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#endif
//#define FRAMERATE // define me to have hlds print out what it thinks the framerate is
#include <stdio.h>
#include <stdlib.h>
#include "sys_ded.h"
#include "conproc.h"
#include "dedicated.h"
#include "exefuncs.h"
#include "dll_state.h"
#include "enginecallback.h"
#if defined( _WIN32 )
#include "../utils/procinfo/procinfo.h"
#endif
#ifdef _WIN32
static HANDLE hinput;
static HANDLE houtput;
static const char *g_pszengine = "swds.dll";
#else
static const char *g_pszengine = "engine_i386.so";
static char g_szEXEName[ 256 ];
#endif
// System Memory & Size
static unsigned char *gpMemBase = NULL;
static int giMemSize = 0x2000000; // 32 Mb default heapsize
exefuncs_t ef;
static char console_text[256];
static int console_textlen;
static long hDLLThirdParty = 0L;
char *gpszCmdLine = NULL;
SleepType Sys_Sleep;
void Sys_Sleep_Old( int msec )
{
#ifdef _WIN32
Sleep( msec );
#else
usleep(msec * 1000);
#endif
}
#if !defined ( _WIN32 )
typedef int (*NET_Sleep_t)( void );
NET_Sleep_t NET_Sleep =NULL;
extern long ghMod; // from engine.cpp
void Sys_Sleep_Net( int msec )
{
if ( NET_Sleep != NULL)
{
NET_Sleep();
}
else
{
Sys_Sleep_Old(msec); // NET_Sleep isn't hooked yet, fallback to the old method
}
}
volatile char paused=0; // this checks if pause has run yet, tell the compiler it can change at any time
// for Sys_Sleep_Timer()
void alarmFunc(int num) {
signal( SIGALRM, alarmFunc ); // reset the signal handler
if(!paused) { // paused is 0, the timer has fired before the pause was called... Lets queue it again
struct itimerval itim;
itim.it_interval.tv_sec = 0;
itim.it_interval.tv_usec = 0;
itim.it_value.tv_sec = 0;
itim.it_value.tv_usec = 1000; // get it to run again real soon
setitimer( ITIMER_REAL, &itim, 0 );
}
}
#endif
void Sys_Sleep_Timer( int msec )
{
#ifdef _WIN32
Sleep( msec );
#else
// linux runs on a 100Hz scheduling clock, so the minimum latency from
// usleep is 10msec. However, people want lower latency than this..
//
// There are a few solutions, one is to use the realtime scheduler in the
// kernel BUT this needs root privelleges to start. It also can play
// unfriendly with other programs.
// Another solution is to use software timers, they use the RTC of the
// system and are accurate to microseconds (or so).
// timers, via setitimer() are used here
struct itimerval tm;
tm.it_value.tv_sec=msec/1000; // convert msec to seconds
tm.it_value.tv_usec=(msec%1000)*1E3; // get the number of msecs and change to micros
tm.it_interval.tv_sec = 0;
tm.it_interval.tv_usec = 0;
paused=0;
if( setitimer(ITIMER_REAL,&tm,NULL)==0)
{ // set the timer to trigger
pause(); // wait for the signal
}
paused=1;
#endif
}
void Sys_Sleep_Select( int msec )
{
#ifdef _WIN32
Sleep( msec );
#else // _WIN32
struct timeval tv;
// Assumes msec < 1000
tv.tv_sec = 0;
tv.tv_usec = 1000 * msec;
select( 1, NULL, NULL, NULL, &tv );
#endif // _WIN32
}
void *Sys_GetProcAddress( long library, const char *name )
{
#ifdef _WIN32
return ( void * )GetProcAddress( (HMODULE)library, name );
#else // LINUX
return dlsym( (void *)library, name );
#endif
}
long Sys_LoadLibrary( char *lib )
{
void *hDll = NULL;
#ifdef _WIN32
hDll = ::LoadLibrary( lib );
#else
char cwd[1024];
char absolute_lib[1024];
if (!getcwd(cwd, sizeof(cwd)))
Sys_ErrorMessage(1, "Sys_LoadLibrary: Couldn't determine current directory.");
if (cwd[strlen(cwd)-1] == '/')
cwd[strlen(cwd)-1] = 0;
snprintf(absolute_lib, sizeof(absolute_lib), "%s/%s", cwd, lib);
hDll = dlopen( absolute_lib, RTLD_NOW );
if ( !hDll )
{
Sys_ErrorMessage( 1, dlerror() );
}
#endif
return (long)hDll;
}
void Sys_FreeLibrary( long library )
{
if ( !library )
return;
#ifdef _WIN32
::FreeLibrary( (HMODULE)library );
#else
dlclose( (void *)library );
#endif
}
int Sys_GetExecutableName( char *out )
{
#ifdef _WIN32
if ( !::GetModuleFileName( ( HINSTANCE )GetModuleHandle( NULL ), out, 256 ) )
{
return 0;
}
#else
strcpy( out, g_szEXEName );
#endif
return 1;
}
/*
==============
Sys_ErrorMessage
Engine is erroring out, display error in message box
==============
*/
void Sys_ErrorMessage( int level, const char *msg )
{
#ifdef _WIN32
MessageBox( NULL, msg, "Half-Life", MB_OK );
PostQuitMessage(0);
#else
printf( "%s\n", msg );
exit( -1 );
#endif
}
#ifdef _WIN32
/*
==============
UpdateStatus
Update status line at top of console if engine is running
==============
*/
void UpdateStatus( int force )
{
static double tLast = 0.0;
double tCurrent;
char szPrompt[256];
int n, spec, nMax;
char szMap[32];
float fps;
if ( !engineapi.Host_GetHostInfo )
return;
tCurrent = (float)( timeGetTime() / 1000.0f );
engineapi.Host_GetHostInfo( &fps, &n, &spec, &nMax, szMap );
if ( !force )
{
if ( ( tCurrent - tLast ) < 0.5f )
return;
}
tLast = tCurrent;
snprintf( szPrompt, sizeof(szPrompt), "%.1f fps %2i(%2i spec)/%2i on %16s", (float)fps, n, spec, nMax, szMap);
WriteStatusText( szPrompt );
}
#endif
/*
================
Sys_ConsoleOutput
Print text to the dedicated console
================
*/
void Sys_ConsoleOutput (char *string)
{
#ifdef _WIN32
unsigned long dummy;
char text[256];
if (console_textlen)
{
text[0] = '\r';
memset(&text[1], ' ', console_textlen);
text[console_textlen+1] = '\r';
text[console_textlen+2] = 0;
WriteFile(houtput, text, console_textlen+2, &dummy, NULL);
}
WriteFile(houtput, string, strlen(string), &dummy, NULL);
if (console_textlen)
{
WriteFile(houtput, console_text, console_textlen, &dummy, NULL);
}
UpdateStatus( 1 /* force */ );
#else
printf( "%s", string );
fflush( stdout );
#endif
}
/*
==============
Sys_Printf
Engine is printing to console
==============
*/
void Sys_Printf(char *fmt, ...)
{
// Dump text to debugging console.
va_list argptr;
char szText[1024];
va_start (argptr, fmt);
vsnprintf (szText, sizeof(szText), fmt, argptr);
va_end (argptr);
// Get Current text and append it.
Sys_ConsoleOutput( szText );
}
/*
==============
Load3rdParty
Load support for third party .dlls ( gamehost )
==============
*/
void Load3rdParty( void )
{
// Only do this if the server operator wants the support.
// ( In case of malicious code, too )
if ( CheckParm( "-usegh" ) )
{
hDLLThirdParty = Sys_LoadLibrary( "ghostinj.dll" );
}
}
/*
==============
EF_VID_ForceUnlockedAndReturnState
Dummy funcion called by engine
==============
*/
int EF_VID_ForceUnlockedAndReturnState(void)
{
return 0;
}
/*
==============
EF_VID_ForceLockState
Dummy funcion called by engine
==============
*/
void EF_VID_ForceLockState(int)
{
}
/*
==============
CheckParm
Search for psz in command line to .exe, if **ppszValue is set, then the pointer is
directed at the NEXT argument in the command line
==============
*/
char *CheckParm(const char *psz, char **ppszValue)
{
int i;
static char sz[128];
char *pret;
if (!gpszCmdLine)
return NULL;
pret = strstr( gpszCmdLine, psz );
// should we return a pointer to the value?
if (pret && ppszValue)
{
char *p1 = pret;
*ppszValue = NULL;
while ( *p1 && (*p1 != 32))
p1++;
if (p1 != 0)
{
char *p2 = ++p1;
for ( i = 0; i < 128; i++ )
{
if ( !*p2 || (*p2 == 32))
break;
sz[i] = *p2++;
}
sz[i] = 0;
*ppszValue = &sz[0];
}
}
return pret;
}
/*
==============
InitInstance
==============
*/
int InitInstance( void )
{
Load3rdParty();
Eng_SetState( DLL_INACTIVE );
memset( &ef, 0, sizeof( ef ) );
// Function pointers used by dedicated server
ef.Sys_Printf = Sys_Printf;
ef.ErrorMessage = Sys_ErrorMessage;
ef.VID_ForceLockState = EF_VID_ForceLockState;
ef.VID_ForceUnlockedAndReturnState = EF_VID_ForceUnlockedAndReturnState;
#ifdef _WIN32
// Data
ef.fMMX = PROC_IsMMX();
ef.iCPUMhz = PROC_GetSpeed(); // in MHz
#endif
return 1;
}
/*
================
Sys_ConsoleInput
================
*/
#ifdef _WIN32
char *Sys_ConsoleInput (void)
{
INPUT_RECORD recs[1024];
unsigned long dummy;
int ch;
unsigned long numread, numevents;
while ( 1 )
{
if (!GetNumberOfConsoleInputEvents (hinput, &numevents))
{
exit( -1 );
}
if (numevents <= 0)
break;
if ( !ReadConsoleInput(hinput, recs, 1, &numread) )
{
exit( -1 );
}
if (numread != 1)
{
exit( -1 );
}
if ( recs[0].EventType == KEY_EVENT )
{
if ( !recs[0].Event.KeyEvent.bKeyDown )
{
ch = recs[0].Event.KeyEvent.uChar.AsciiChar;
switch (ch)
{
case '\r':
WriteFile(houtput, "\r\n", 2, &dummy, NULL);
if (console_textlen)
{
console_text[console_textlen] = 0;
console_textlen = 0;
return console_text;
}
break;
case '\b':
if (console_textlen)
{
console_textlen--;
WriteFile(houtput, "\b \b", 3, &dummy, NULL);
}
break;
default:
if (ch >= ' ')
{
if (console_textlen < sizeof(console_text)-2)
{
WriteFile(houtput, &ch, 1, &dummy, NULL);
console_text[console_textlen] = ch;
console_textlen++;
}
}
break;
}
}
}
}
return NULL;
}
#else
char *Sys_ConsoleInput(void)
{
struct timeval tvTimeout;
fd_set fdSet;
unsigned char ch;
FD_ZERO( &fdSet );
FD_SET( STDIN_FILENO, &fdSet );
tvTimeout.tv_sec = 0;
tvTimeout.tv_usec = 0;
if ( select( 1, &fdSet, NULL, NULL, &tvTimeout ) == -1 || !FD_ISSET( STDIN_FILENO, &fdSet ) )
return NULL;
console_textlen = 0;
// We're going to shove a newline onto the end of the input later in
// ProcessConsoleInput(), so only accept 254 chars instead of 255. -LH
while ( read( STDIN_FILENO, &ch, 1 ) )
{
if ( ( ch == 10 ) || ( console_textlen == 254 ) )
{
// For commands longer than we can accept, consume the remainder of the input buffer
if ( ( console_textlen == 254 ) && ( ch != 10 ) )
{
while ( read( STDIN_FILENO, &ch, 1 ) )
{
if ( ch == 10 )
break;
}
}
//Null terminate string and return
console_text[ console_textlen ] = 0;
console_textlen = 0;
return console_text;
}
console_text[ console_textlen++ ] = ch;
}
return NULL;
}
#endif
#ifdef _WIN32
/*
==============
WriteStatusText
==============
*/
void WriteStatusText( char *szText )
{
char szFullLine[81];
COORD coord;
DWORD dwWritten = 0;
WORD wAttrib[80];
int i;
for ( i = 0; i < 80; i++ )
{
wAttrib[i] = FOREGROUND_RED | FOREGROUND_INTENSITY;
}
memset( szFullLine, 0, sizeof(szFullLine) );
snprintf( szFullLine, sizeof( szFullLine ), "%s", szText );
coord.X = 0;
coord.Y = 0;
WriteConsoleOutputAttribute( houtput, wAttrib, 80, coord, &dwWritten );
WriteConsoleOutputCharacter( houtput, szFullLine, 80, coord, &dwWritten );
}
#endif
/*
==============
CreateConsoleWindow
Create console window ( overridable? )
==============
*/
int CreateConsoleWindow( void )
{
#ifdef _WIN32
if ( !AllocConsole () )
{
return 0;
}
hinput = GetStdHandle (STD_INPUT_HANDLE);
houtput = GetStdHandle (STD_OUTPUT_HANDLE);
InitConProc();
#endif
return 1;
}
/*
==============
DestroyConsoleWindow
==============
*/
void DestroyConsoleWindow( void )
{
#ifdef _WIN32
FreeConsole ();
// shut down QHOST hooks if necessary
DeinitConProc ();
#endif
}
/*
==============
ProcessConsoleInput
==============
*/
void ProcessConsoleInput( void )
{
char *s;
if ( !engineapi.Cbuf_AddText )
return;
do
{
s = Sys_ConsoleInput ();
if (s)
{
char szBuf[ 256 ];
snprintf( szBuf, sizeof(szBuf), "%s\n", s );
engineapi.Cbuf_AddText ( szBuf );
}
} while (s);
}
/*
================
GameInit
================
*/
int GameInit(void)
{
char *p;
// Command line override
if ( (CheckParm ("-heapsize", &p ) ) && p )
{
giMemSize = atoi( p ) * 1024;
}
Sys_Sleep=Sys_Sleep_Old;
#if !defined ( _WIN32 )
char *pPingType;
int type;
if ( (CheckParm ("-pingboost", &pPingType)) && pPingType )
{
type=atoi( pPingType );
switch( type ) {
case 1:
//printf("Using timer method\n");
signal(SIGALRM,alarmFunc);
Sys_Sleep=Sys_Sleep_Timer;
break;
case 2:
Sys_Sleep = Sys_Sleep_Select;
break;
case 3:
Sys_Sleep = Sys_Sleep_Net;
// we Sys_GetProcAddress NET_Sleep() from
//engine_i386.so later in this function
break;
default: // just in case
Sys_Sleep=Sys_Sleep_Old;
break;
}
}
#endif
// Try and allocated it
#ifdef _WIN32
gpMemBase = (unsigned char *)::GlobalAlloc( GMEM_FIXED, giMemSize );
#else
gpMemBase = (unsigned char *)malloc( giMemSize );
#endif
if (!gpMemBase)
{
return 0;
}
#ifdef _WIN32
// Check that we are running on Win32
OSVERSIONINFO vinfo;
vinfo.dwOSVersionInfoSize = sizeof(vinfo);
if ( !GetVersionEx ( &vinfo ) )
{
return 0;
}
if ( vinfo.dwPlatformId == VER_PLATFORM_WIN32s )
{
return 0;
}
#endif
if ( !Eng_Load( gpszCmdLine, &ef, giMemSize, gpMemBase, g_pszengine, DLL_NORMAL ) )
{
return 0;
}
#if !defined ( _WIN32 )
if ( type == 3 )
{
NET_Sleep=(NET_Sleep_t)Sys_GetProcAddress(ghMod,"NET_Sleep_Timeout");
//printf("Net_Sleep:%p\n",NET_Sleep);
}
#endif
Eng_SetState( DLL_ACTIVE );
return 1;
}
/*
==============
GameShutdown
==============
*/
void GameShutdown( void )
{
Eng_Unload();
if ( gpMemBase )
{
#ifdef _WIN32
::GlobalFree( gpMemBase );
#else
free( gpMemBase );
#endif
gpMemBase = NULL;
}
}
#ifdef _WIN32
BOOL gbAppHasBeenTerminated = FALSE;
BOOL CtrlHandler(DWORD fdwCtrlType)
{
switch ( fdwCtrlType )
{
case CTRL_C_EVENT:
case CTRL_CLOSE_EVENT:
case CTRL_BREAK_EVENT:
case CTRL_LOGOFF_EVENT:
case CTRL_SHUTDOWN_EVENT:
gbAppHasBeenTerminated = TRUE;
return TRUE;
default:
return FALSE;
}
}
/*
==============
WinMain
EXE entry point
==============
*/
int PASCAL WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow )
{
int iret = -1;
// Store off command line for argument searching
gpszCmdLine = strdup( GetCommandLine() );
Sys_Sleep=Sys_Sleep_Old; // win32 doesn't have pingbooster options :)
if ( !InitInstance() )
{
goto cleanup;
}
if ( !CreateConsoleWindow() )
{
goto cleanup;
}
if ( !GameInit() )
{
goto cleanup;
}
if ( engineapi.SetStartupMode )
{
engineapi.SetStartupMode( 1 );
}
while ( 1 )
{
int bDone = 0;
static double oldtime = 0.0;
MSG msg;
double newtime;
double dtime;
if ( gbAppHasBeenTerminated )
break;
// Try to allow other apps to get some CPU
Sys_Sleep( 1 );
if ( !engineapi.Sys_FloatTime )
break;
while ( 1 )
{
newtime = engineapi.Sys_FloatTime();
if ( newtime < oldtime )
{
oldtime = newtime - 0.05;
}
dtime = newtime - oldtime;
if ( gbAppHasBeenTerminated )
break;
if ( dtime > 0.001 )
break;
// Running really fast, yield some time to other apps
Sys_Sleep( 1 );
}
while ( ::PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) )
{
if ( gbAppHasBeenTerminated )
break;
if (!::GetMessage( &msg, NULL, 0, 0))
{
bDone = 1;
break;
}
::TranslateMessage( &msg );
::DispatchMessage( &msg );
}
if ( bDone )
break;
ProcessConsoleInput();
if ( engineapi.Host_Frame )
{
Eng_Frame( 0, dtime );
}
UpdateStatus( 0 /* don't force */ );
oldtime = newtime;
}
GameShutdown();
DestroyConsoleWindow();
iret = 1;
cleanup:
if ( gpszCmdLine )
{
free( gpszCmdLine );
}
return iret;
}
#else
#define MAX_LINUX_CMDLINE 512
static char cmdline[ MAX_LINUX_CMDLINE ];
void BuildCmdLine( int argc, char **argv )
{
int len;
int i;
for (len = 0, i = 1; i < argc; i++)
{
len += strlen(argv[i]) + 1;
}
if ( len > MAX_LINUX_CMDLINE )
{
printf( "command line too long, %i max\n", MAX_LINUX_CMDLINE );
exit(-1);
return;
}
cmdline[0] = '\0';
for ( i = 1; i < argc; i++ )
{
if ( i > 1 )
{
strcat( cmdline, " " );
}
strcat( cmdline, argv[ i ] );
}
}
char *GetCommandLine( void )
{
return cmdline;
}
int main(int argc, char **argv)
{
int iret = -1;
#ifdef _DEBUG
snprintf(g_szEXEName, sizeof( g_szEXEName ), "hlds_run.dbg" );
#else
snprintf(g_szEXEName, sizeof( g_szEXEName ), "%s", *argv );
#endif
// Store off command line for argument searching
BuildCmdLine(argc, argv);
gpszCmdLine = strdup( GetCommandLine() );
if ( !InitInstance() )
{
goto cleanup;
}
if ( !CreateConsoleWindow() )
{
goto cleanup;
}
if ( !GameInit() )
{
goto cleanup;
}
if ( engineapi.SetStartupMode )
{
engineapi.SetStartupMode( 1 );
}
while ( 1 )
{
char *p;
static double oldtime = 0.0;
double newtime;
double dtime;
#ifdef FRAMERATE
static int frameNumber=0,frameRate=0;
static struct timeval beforeTime;
if(frameRate==0) {
gettimeofday(&beforeTime,NULL);
}
frameRate++;
if(frameRate%1000==0) {
struct timeval afterTime;
float timediff;
gettimeofday(&afterTime,NULL);
timediff= (float)(afterTime.tv_sec-beforeTime.tv_sec)+
((float)(afterTime.tv_usec-beforeTime.tv_usec))/1E6;
printf("Frame Rate:%f\n",(float)frameRate/timediff);
frameRate=0;
}
#endif
Sys_Sleep( 1 );
if ( !engineapi.Sys_FloatTime )
break;
while ( 1 )
{
newtime = engineapi.Sys_FloatTime();
if ( newtime < oldtime )
{
oldtime = newtime - 0.05;
}
dtime = newtime - oldtime;
if ( dtime > 0.001 )
break;
// Running really fast, yield some time to other apps
Sys_Sleep( 1 );
}
ProcessConsoleInput();
Eng_Frame( 0, dtime );
oldtime = newtime;
}
GameShutdown();
DestroyConsoleWindow();
iret = 1;
cleanup:
if ( gpszCmdLine )
{
free( gpszCmdLine );
}
if ( hDLLThirdParty )
{
Sys_FreeLibrary( hDLLThirdParty );
hDLLThirdParty = 0L;
}
return iret;
}
#endif