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Diffstat (limited to 'src/unix/unix_main.c')
| -rw-r--r-- | src/unix/unix_main.c | 1494 |
1 files changed, 1494 insertions, 0 deletions
diff --git a/src/unix/unix_main.c b/src/unix/unix_main.c new file mode 100644 index 0000000..86d97a1 --- /dev/null +++ b/src/unix/unix_main.c @@ -0,0 +1,1494 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2006 Tim Angus + +This file is part of Tremulous. + +Tremulous 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 2 of the License, +or (at your option) any later version. + +Tremulous 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 Tremulous; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +#include <unistd.h> +#include <signal.h> +#include <stdlib.h> +#include <limits.h> +#include <sys/time.h> +#include <sys/types.h> +#include <unistd.h> +#include <fcntl.h> +#include <stdarg.h> +#include <stdio.h> +#include <sys/ipc.h> +#include <sys/shm.h> +#include <sys/stat.h> +#include <string.h> +#include <ctype.h> +#include <sys/wait.h> +#include <sys/mman.h> +#include <errno.h> +#include <libgen.h> // dirname +#ifdef __linux__ // rb010123 + #include <mntent.h> +#endif + +#if (defined(DEDICATED) && defined(USE_SDL_VIDEO)) +#undef USE_SDL_VIDEO +#endif + +#if USE_SDL_VIDEO +#include "SDL.h" +#include "SDL_loadso.h" +#else +#include <dlfcn.h> +#endif + +#ifdef __linux__ + #include <fpu_control.h> // bk001213 - force dumps on divide by zero +#endif + +#if defined(__sun) + #include <sys/file.h> +#endif + +// FIXME TTimo should we gard this? most *nix system should comply? +#include <termios.h> + +#include "../qcommon/q_shared.h" +#include "../qcommon/qcommon.h" +#include "../renderer/tr_public.h" + +#include "linux_local.h" // bk001204 + +#if idppc_altivec + #ifdef MACOS_X + #include <sys/sysctl.h> + #endif +#endif + +unsigned sys_frame_time; + +qboolean stdin_active = qtrue; + +// ============================================================= +// tty console variables +// ============================================================= + +// enable/disabled tty input mode +// NOTE TTimo this is used during startup, cannot be changed during run +static cvar_t *ttycon = NULL; +// general flag to tell about tty console mode +static qboolean ttycon_on = qfalse; +// when printing general stuff to stdout stderr (Sys_Printf) +// we need to disable the tty console stuff +// this increments so we can recursively disable +static int ttycon_hide = 0; +// some key codes that the terminal may be using +// TTimo NOTE: I'm not sure how relevant this is +static int tty_erase; +static int tty_eof; + +static struct termios tty_tc; + +static field_t tty_con; + +static cvar_t *ttycon_ansicolor = NULL; +static qboolean ttycon_color_on = qfalse; + +// history +// NOTE TTimo this is a bit duplicate of the graphical console history +// but it's safer and faster to write our own here +#define TTY_HISTORY 32 +static field_t ttyEditLines[TTY_HISTORY]; +static int hist_current = -1, hist_count = 0; + +// ======================================================================= +// General routines +// ======================================================================= + +// bk001207 +#define MEM_THRESHOLD 96*1024*1024 + +/* +================== +Sys_LowPhysicalMemory() +================== +*/ +qboolean Sys_LowPhysicalMemory() { + //MEMORYSTATUS stat; + //GlobalMemoryStatus (&stat); + //return (stat.dwTotalPhys <= MEM_THRESHOLD) ? qtrue : qfalse; + return qfalse; // bk001207 - FIXME +} + +/* +================== +Sys_FunctionCmp +================== +*/ +int Sys_FunctionCmp(void *f1, void *f2) { + return qtrue; +} + +/* +================== +Sys_FunctionCheckSum +================== +*/ +int Sys_FunctionCheckSum(void *f1) { + return 0; +} + +/* +================== +Sys_MonkeyShouldBeSpanked +================== +*/ +int Sys_MonkeyShouldBeSpanked( void ) { + return 0; +} + +void Sys_BeginProfiling( void ) { +} + +/* +================= +Sys_In_Restart_f + +Restart the input subsystem +================= +*/ +void Sys_In_Restart_f( void ) +{ + IN_Shutdown(); + IN_Init(); +} + +// ============================================================= +// tty console routines +// NOTE: if the user is editing a line when something gets printed to the early console then it won't look good +// so we provide tty_Clear and tty_Show to be called before and after a stdout or stderr output +// ============================================================= + +// flush stdin, I suspect some terminals are sending a LOT of shit +// FIXME TTimo relevant? +void tty_FlushIn( void ) +{ + char key; + while (read(0, &key, 1)!=-1); +} + +// do a backspace +// TTimo NOTE: it seems on some terminals just sending '\b' is not enough +// so for now, in any case we send "\b \b" .. yeah well .. +// (there may be a way to find out if '\b' alone would work though) +void tty_Back( void ) +{ + char key; + key = '\b'; + write(1, &key, 1); + key = ' '; + write(1, &key, 1); + key = '\b'; + write(1, &key, 1); +} + +// clear the display of the line currently edited +// bring cursor back to beginning of line +void tty_Hide( void ) +{ + int i; + assert(ttycon_on); + if (ttycon_hide) + { + ttycon_hide++; + return; + } + if (tty_con.cursor>0) + { + for (i=0; i<tty_con.cursor; i++) + { + tty_Back(); + } + } + ttycon_hide++; +} + +// show the current line +// FIXME TTimo need to position the cursor if needed?? +void tty_Show( void ) +{ + int i; + assert(ttycon_on); + assert(ttycon_hide>0); + ttycon_hide--; + if (ttycon_hide == 0) + { + if (tty_con.cursor) + { + for (i=0; i<tty_con.cursor; i++) + { + write(1, tty_con.buffer+i, 1); + } + } + } +} + +// never exit without calling this, or your terminal will be left in a pretty bad state +void Sys_ConsoleInputShutdown( void ) +{ + if (ttycon_on) + { + Com_Printf("Shutdown tty console\n"); + tcsetattr (0, TCSADRAIN, &tty_tc); + } +} + +void Hist_Add(field_t *field) +{ + int i; + assert(hist_count <= TTY_HISTORY); + assert(hist_count >= 0); + assert(hist_current >= -1); + assert(hist_current <= hist_count); + // make some room + for (i=TTY_HISTORY-1; i>0; i--) + { + ttyEditLines[i] = ttyEditLines[i-1]; + } + ttyEditLines[0] = *field; + if (hist_count<TTY_HISTORY) + { + hist_count++; + } + hist_current = -1; // re-init +} + +field_t *Hist_Prev( void ) +{ + int hist_prev; + assert(hist_count <= TTY_HISTORY); + assert(hist_count >= 0); + assert(hist_current >= -1); + assert(hist_current <= hist_count); + hist_prev = hist_current + 1; + if (hist_prev >= hist_count) + { + return NULL; + } + hist_current++; + return &(ttyEditLines[hist_current]); +} + +field_t *Hist_Next( void ) +{ + assert(hist_count <= TTY_HISTORY); + assert(hist_count >= 0); + assert(hist_current >= -1); + assert(hist_current <= hist_count); + if (hist_current >= 0) + { + hist_current--; + } + if (hist_current == -1) + { + return NULL; + } + return &(ttyEditLines[hist_current]); +} + +// ============================================================= +// general sys routines +// ============================================================= + +#if 0 +// NOTE TTimo this is not used .. looks interesting though? protection against buffer overflow kind of stuff? +void Sys_Printf (char *fmt, ...) +{ + va_list argptr; + char text[1024]; + unsigned char *p; + + va_start (argptr,fmt); + vsprintf (text,fmt,argptr); + va_end (argptr); + + if (strlen(text) > sizeof(text)) + Sys_Error("memory overwrite in Sys_Printf"); + + for (p = (unsigned char *)text; *p; p++) + { + *p &= 0x7f; + if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9) + printf("[%02x]", *p); + else + putc(*p, stdout); + } +} +#endif + +// single exit point (regular exit or in case of signal fault) +void Sys_Exit( int ex ) { + Sys_ConsoleInputShutdown(); + +#ifdef NDEBUG // regular behavior + + // We can't do this + // as long as GL DLL's keep installing with atexit... + //exit(ex); + _exit(ex); +#else + + // Give me a backtrace on error exits. + assert( ex == 0 ); + exit(ex); +#endif +} + + +void Sys_Quit (void) { + CL_Shutdown (); + fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY); + Sys_Exit(0); +} + + +#if idppc_altivec && !MACOS_X +/* This is the brute force way of detecting instruction sets... + the code is borrowed from SDL, which got the idea from the libmpeg2 + library - thanks! + */ +#include <signal.h> +#include <setjmp.h> +static jmp_buf jmpbuf; +static void illegal_instruction(int sig) +{ + longjmp(jmpbuf, 1); +} +#endif + +qboolean Sys_DetectAltivec( void ) +{ + qboolean altivec = qfalse; + +#if idppc_altivec + #ifdef MACOS_X + int selectors[2] = { CTL_HW, HW_VECTORUNIT }; + int hasVectorUnit = 0; + size_t length = sizeof(hasVectorUnit); + int error = sysctl(selectors, 2, &hasVectorUnit, &length, NULL, 0); + + if( 0 == error ) + altivec = (hasVectorUnit != 0); + #else + void (*handler)(int sig); + handler = signal(SIGILL, illegal_instruction); + if ( setjmp(jmpbuf) == 0 ) { + asm volatile ("mtspr 256, %0\n\t" + "vand %%v0, %%v0, %%v0" + : + : "r" (-1)); + altivec = qtrue; + } + signal(SIGILL, handler); + #endif +#endif + + return altivec; +} + +void Sys_Init(void) +{ + + Cmd_AddCommand ("in_restart", Sys_In_Restart_f); + + Cvar_Set( "arch", OS_STRING " " ARCH_STRING ); + + Cvar_Set( "username", Sys_GetCurrentUser() ); + + //IN_Init(); // rcg08312005 moved into glimp. + +} + +void Sys_Error( const char *error, ...) +{ + va_list argptr; + char string[1024]; + + // change stdin to non blocking + // NOTE TTimo not sure how well that goes with tty console mode + fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY); + + // don't bother do a show on this one heh + if (ttycon_on) + { + tty_Hide(); + } + + CL_Shutdown (); + + va_start (argptr,error); + vsprintf (string,error,argptr); + va_end (argptr); + fprintf(stderr, "Sys_Error: %s\n", string); + + Sys_Exit( 1 ); // bk010104 - use single exit point. +} + +void Sys_Warn (char *warning, ...) +{ + va_list argptr; + char string[1024]; + + va_start (argptr,warning); + vsprintf (string,warning,argptr); + va_end (argptr); + + if (ttycon_on) + { + tty_Hide(); + } + + fprintf(stderr, "Warning: %s", string); + + if (ttycon_on) + { + tty_Show(); + } +} + +/* +============ +Sys_FileTime + +returns -1 if not present +============ +*/ +int Sys_FileTime (char *path) +{ + struct stat buf; + + if (stat (path,&buf) == -1) + return -1; + + return buf.st_mtime; +} + +void floating_point_exception_handler(int whatever) +{ + signal(SIGFPE, floating_point_exception_handler); +} + +// initialize the console input (tty mode if wanted and possible) +void Sys_ConsoleInputInit( void ) +{ + struct termios tc; + + // TTimo + // https://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=390 + // ttycon 0 or 1, if the process is backgrounded (running non interactively) + // then SIGTTIN or SIGTOU is emitted, if not catched, turns into a SIGSTP + signal(SIGTTIN, SIG_IGN); + signal(SIGTTOU, SIG_IGN); + + // FIXME TTimo initialize this in Sys_Init or something? + ttycon = Cvar_Get("ttycon", "1", 0); + if (ttycon && ttycon->value) + { + if (isatty(STDIN_FILENO)!=1) + { + Com_Printf("stdin is not a tty, tty console mode failed\n"); + Cvar_Set("ttycon", "0"); + ttycon_on = qfalse; + return; + } + Com_Printf("Started tty console (use +set ttycon 0 to disable)\n"); + Field_Clear(&tty_con); + tcgetattr (0, &tty_tc); + tty_erase = tty_tc.c_cc[VERASE]; + tty_eof = tty_tc.c_cc[VEOF]; + tc = tty_tc; + /* + ECHO: don't echo input characters + ICANON: enable canonical mode. This enables the special + characters EOF, EOL, EOL2, ERASE, KILL, REPRINT, + STATUS, and WERASE, and buffers by lines. + ISIG: when any of the characters INTR, QUIT, SUSP, or + DSUSP are received, generate the corresponding sig + nal + */ + tc.c_lflag &= ~(ECHO | ICANON); + /* + ISTRIP strip off bit 8 + INPCK enable input parity checking + */ + tc.c_iflag &= ~(ISTRIP | INPCK); + tc.c_cc[VMIN] = 1; + tc.c_cc[VTIME] = 0; + tcsetattr (0, TCSADRAIN, &tc); + ttycon_on = qtrue; + + ttycon_ansicolor = Cvar_Get( "ttycon_ansicolor", "0", CVAR_ARCHIVE ); + if( ttycon_ansicolor && ttycon_ansicolor->value ) + { + ttycon_color_on = qtrue; + } + } else + ttycon_on = qfalse; +} + +char *Sys_ConsoleInput(void) +{ + // we use this when sending back commands + static char text[256]; + int avail; + char key; + field_t *history; + + if (ttycon && ttycon->value) + { + avail = read(0, &key, 1); + if (avail != -1) + { + // we have something + // backspace? + // NOTE TTimo testing a lot of values .. seems it's the only way to get it to work everywhere + if ((key == tty_erase) || (key == 127) || (key == 8)) + { + if (tty_con.cursor > 0) + { + tty_con.cursor--; + tty_con.buffer[tty_con.cursor] = '\0'; + tty_Back(); + } + return NULL; + } + // check if this is a control char + if ((key) && (key) < ' ') + { + if (key == '\n') + { + // push it in history + Hist_Add(&tty_con); + strcpy(text, tty_con.buffer); + Field_Clear(&tty_con); + key = '\n'; + write(1, &key, 1); + return text; + } + if (key == '\t') + { + tty_Hide(); + Field_AutoComplete( &tty_con ); + tty_Show(); + return NULL; + } + avail = read(0, &key, 1); + if (avail != -1) + { + // VT 100 keys + if (key == '[' || key == 'O') + { + avail = read(0, &key, 1); + if (avail != -1) + { + switch (key) + { + case 'A': + history = Hist_Prev(); + if (history) + { + tty_Hide(); + tty_con = *history; + tty_Show(); + } + tty_FlushIn(); + return NULL; + break; + case 'B': + history = Hist_Next(); + tty_Hide(); + if (history) + { + tty_con = *history; + } else + { + Field_Clear(&tty_con); + } + tty_Show(); + tty_FlushIn(); + return NULL; + break; + case 'C': + return NULL; + case 'D': + return NULL; + } + } + } + } + Com_DPrintf("droping ISCTL sequence: %d, tty_erase: %d\n", key, tty_erase); + tty_FlushIn(); + return NULL; + } + // push regular character + tty_con.buffer[tty_con.cursor] = key; + tty_con.cursor++; + // print the current line (this is differential) + write(1, &key, 1); + } + return NULL; + } else + { + int len; + fd_set fdset; + struct timeval timeout; + + if (!com_dedicated || !com_dedicated->value) + return NULL; + + if (!stdin_active) + return NULL; + + FD_ZERO(&fdset); + FD_SET(0, &fdset); // stdin + timeout.tv_sec = 0; + timeout.tv_usec = 0; + if (select (1, &fdset, NULL, NULL, &timeout) == -1 || !FD_ISSET(0, &fdset)) + { + return NULL; + } + + len = read (0, text, sizeof(text)); + if (len == 0) + { // eof! + stdin_active = qfalse; + return NULL; + } + + if (len < 1) + return NULL; + text[len-1] = 0; // rip off the /n and terminate + + return text; + } +} + +/*****************************************************************************/ + +char *do_dlerror(void) +{ +#if USE_SDL_VIDEO + return SDL_GetError(); +#else + return dlerror(); +#endif +} + + +/* +================= +Sys_UnloadDll + +================= +*/ +void Sys_UnloadDll( void *dllHandle ) { + // bk001206 - verbose error reporting + if ( !dllHandle ) + { + Com_Printf("Sys_UnloadDll(NULL)\n"); + return; + } + +#if USE_SDL_VIDEO + SDL_UnloadObject(dllHandle); +#else + dlclose( dllHandle ); + { + const char* err; // rb010123 - now const + err = dlerror(); + if ( err != NULL ) + Com_Printf ( "Sys_UnloadGame failed on dlclose: \"%s\"!\n", err ); + } +#endif +} + + +/* +================= +Sys_LoadDll + +Used to load a development dll instead of a virtual machine +TTimo: +changed the load procedure to match VFS logic, and allow developer use +#1 look down current path +#2 look in fs_homepath +#3 look in fs_basepath +================= +*/ + +static void* try_dlopen(const char* base, const char* gamedir, const char* fname, char* fqpath ) +{ + void* libHandle; + char* fn; + + *fqpath = 0; + +// bk001129 - was RTLD_LAZY +#define Q_RTLD RTLD_NOW + + fn = FS_BuildOSPath( base, gamedir, fname ); + Com_Printf( "Sys_LoadDll(%s)... \n", fn ); + +#if USE_SDL_VIDEO + libHandle = SDL_LoadObject(fn); +#else + libHandle = dlopen( fn, Q_RTLD ); +#endif + + if(!libHandle) { + Com_Printf( "Sys_LoadDll(%s) failed:\n\"%s\"\n", fn, do_dlerror() ); + return NULL; + } + + Com_Printf ( "Sys_LoadDll(%s): succeeded ...\n", fn ); + Q_strncpyz ( fqpath , fn , MAX_QPATH ) ; // added 7/20/02 by T.Ray + + return libHandle; +} + +void *Sys_LoadDll( const char *name, char *fqpath , + intptr_t (**entryPoint)(int, ...), + intptr_t (*systemcalls)(intptr_t, ...) ) +{ + void *libHandle; + void (*dllEntry)( intptr_t (*syscallptr)(intptr_t, ...) ); + char curpath[MAX_OSPATH]; + char fname[MAX_OSPATH]; + char *basepath; + char *homepath; + char *pwdpath; + char *cdpath; + char *gamedir; + const char* err = NULL; + + // bk001206 - let's have some paranoia + assert( name ); + + getcwd(curpath, sizeof(curpath)); + snprintf (fname, sizeof(fname), "%s" ARCH_STRING DLL_EXT, name); + + // TODO: use fs_searchpaths from files.c + pwdpath = Sys_Cwd(); + basepath = Cvar_VariableString( "fs_basepath" ); + homepath = Cvar_VariableString( "fs_homepath" ); + cdpath = Cvar_VariableString( "fs_cdpath" ); + gamedir = Cvar_VariableString( "fs_game" ); + + libHandle = try_dlopen(pwdpath, gamedir, fname, fqpath); + + if(!libHandle && homepath) + libHandle = try_dlopen(homepath, gamedir, fname, fqpath); + + if(!libHandle && basepath) + libHandle = try_dlopen(basepath, gamedir, fname, fqpath); + + if(!libHandle && cdpath) + libHandle = try_dlopen(cdpath, gamedir, fname, fqpath); + + if(!libHandle) { +#if 0 // don't abort -- ln +//#ifndef NDEBUG // bk001206 - in debug abort on failure + Com_Error ( ERR_FATAL, "Sys_LoadDll(%s) failed dlopen() completely!\n", name ); +#else + Com_Printf ( "Sys_LoadDll(%s) failed dlopen() completely!\n", name ); +#endif + return NULL; + } + +#if USE_SDL_VIDEO + dllEntry = SDL_LoadFunction( libHandle, "dllEntry" ); + *entryPoint = SDL_LoadFunction( libHandle, "vmMain" ); +#else + dllEntry = dlsym( libHandle, "dllEntry" ); + *entryPoint = dlsym( libHandle, "vmMain" ); +#endif + + if ( !*entryPoint || !dllEntry ) + { + err = do_dlerror(); +#ifndef NDEBUG // bk001206 - in debug abort on failure + Com_Error ( ERR_FATAL, "Sys_LoadDll(%s) failed dlsym(vmMain):\n\"%s\" !\n", name, err ); +#else + Com_Printf ( "Sys_LoadDll(%s) failed dlsym(vmMain):\n\"%s\" !\n", name, err ); +#endif +#if USE_SDL_VIDEO + SDL_UnloadObject(libHandle); +#else + dlclose( libHandle ); + err = do_dlerror(); + if ( err != NULL ) { + Com_Printf ( "Sys_LoadDll(%s) failed dlcose:\n\"%s\"\n", name, err ); + } +#endif + + return NULL; + } + Com_Printf ( "Sys_LoadDll(%s) found **vmMain** at %p \n", name, *entryPoint ); // bk001212 + dllEntry( systemcalls ); + Com_Printf ( "Sys_LoadDll(%s) succeeded!\n", name ); + return libHandle; +} + +/* +======================================================================== + +BACKGROUND FILE STREAMING + +======================================================================== +*/ + +#if 1 + +void Sys_InitStreamThread( void ) { +} + +void Sys_ShutdownStreamThread( void ) { +} + +void Sys_BeginStreamedFile( fileHandle_t f, int readAhead ) { +} + +void Sys_EndStreamedFile( fileHandle_t f ) { +} + +int Sys_StreamedRead( void *buffer, int size, int count, fileHandle_t f ) { + return FS_Read( buffer, size * count, f ); +} + +void Sys_StreamSeek( fileHandle_t f, int offset, int origin ) { + FS_Seek( f, offset, origin ); +} + +#else + +typedef struct +{ + fileHandle_t file; + byte *buffer; + qboolean eof; + int bufferSize; + int streamPosition; // next byte to be returned by Sys_StreamRead + int threadPosition; // next byte to be read from file +} streamState_t; + +streamState_t stream; + +/* +=============== +Sys_StreamThread + +A thread will be sitting in this loop forever +================ +*/ +void Sys_StreamThread( void ) +{ + int buffer; + int count; + int readCount; + int bufferPoint; + int r; + + // if there is any space left in the buffer, fill it up + if ( !stream.eof ) + { + count = stream.bufferSize - (stream.threadPosition - stream.streamPosition); + if ( count ) + { + bufferPoint = stream.threadPosition % stream.bufferSize; + buffer = stream.bufferSize - bufferPoint; + readCount = buffer < count ? buffer : count; + r = FS_Read ( stream.buffer + bufferPoint, readCount, stream.file ); + stream.threadPosition += r; + + if ( r != readCount ) + stream.eof = qtrue; + } + } +} + +/* +=============== +Sys_InitStreamThread + +================ +*/ +void Sys_InitStreamThread( void ) +{ +} + +/* +=============== +Sys_ShutdownStreamThread + +================ +*/ +void Sys_ShutdownStreamThread( void ) +{ +} + + +/* +=============== +Sys_BeginStreamedFile + +================ +*/ +void Sys_BeginStreamedFile( fileHandle_t f, int readAhead ) +{ + if ( stream.file ) + { + Com_Error( ERR_FATAL, "Sys_BeginStreamedFile: unclosed stream"); + } + + stream.file = f; + stream.buffer = Z_Malloc( readAhead ); + stream.bufferSize = readAhead; + stream.streamPosition = 0; + stream.threadPosition = 0; + stream.eof = qfalse; +} + +/* +=============== +Sys_EndStreamedFile + +================ +*/ +void Sys_EndStreamedFile( fileHandle_t f ) +{ + if ( f != stream.file ) + { + Com_Error( ERR_FATAL, "Sys_EndStreamedFile: wrong file"); + } + + stream.file = 0; + Z_Free( stream.buffer ); +} + + +/* +=============== +Sys_StreamedRead + +================ +*/ +int Sys_StreamedRead( void *buffer, int size, int count, fileHandle_t f ) +{ + int available; + int remaining; + int sleepCount; + int copy; + int bufferCount; + int bufferPoint; + byte *dest; + + dest = (byte *)buffer; + remaining = size * count; + + if ( remaining <= 0 ) + { + Com_Error( ERR_FATAL, "Streamed read with non-positive size" ); + } + + sleepCount = 0; + while ( remaining > 0 ) + { + available = stream.threadPosition - stream.streamPosition; + if ( !available ) + { + if (stream.eof) + break; + Sys_StreamThread(); + continue; + } + + bufferPoint = stream.streamPosition % stream.bufferSize; + bufferCount = stream.bufferSize - bufferPoint; + + copy = available < bufferCount ? available : bufferCount; + if ( copy > remaining ) + { + copy = remaining; + } + memcpy( dest, stream.buffer + bufferPoint, copy ); + stream.streamPosition += copy; + dest += copy; + remaining -= copy; + } + + return(count * size - remaining) / size; +} + +/* +=============== +Sys_StreamSeek + +================ +*/ +void Sys_StreamSeek( fileHandle_t f, int offset, int origin ) { + // clear to that point + FS_Seek( f, offset, origin ); + stream.streamPosition = 0; + stream.threadPosition = 0; + stream.eof = qfalse; +} + +#endif + +/* +======================================================================== + +EVENT LOOP + +======================================================================== +*/ + +// bk000306: upped this from 64 +#define MAX_QUED_EVENTS 256 +#define MASK_QUED_EVENTS ( MAX_QUED_EVENTS - 1 ) + +sysEvent_t eventQue[MAX_QUED_EVENTS]; +// bk000306: initialize +int eventHead = 0; +int eventTail = 0; +byte sys_packetReceived[MAX_MSGLEN]; + +/* +================ +Sys_QueEvent + +A time of 0 will get the current time +Ptr should either be null, or point to a block of data that can +be freed by the game later. +================ +*/ +void Sys_QueEvent( int time, sysEventType_t type, int value, int value2, int ptrLength, void *ptr ) { + sysEvent_t *ev; + + ev = &eventQue[ eventHead & MASK_QUED_EVENTS ]; + + // bk000305 - was missing + if ( eventHead - eventTail >= MAX_QUED_EVENTS ) + { + Com_Printf("Sys_QueEvent: overflow\n"); + // we are discarding an event, but don't leak memory + if ( ev->evPtr ) + { + Z_Free( ev->evPtr ); + } + eventTail++; + } + + eventHead++; + + if ( time == 0 ) + { + time = Sys_Milliseconds(); + } + + ev->evTime = time; + ev->evType = type; + ev->evValue = value; + ev->evValue2 = value2; + ev->evPtrLength = ptrLength; + ev->evPtr = ptr; +} + +/* +================ +Sys_GetEvent + +================ +*/ +sysEvent_t Sys_GetEvent( void ) { + sysEvent_t ev; + char *s; + msg_t netmsg; + netadr_t adr; + + // return if we have data + if ( eventHead > eventTail ) + { + eventTail++; + return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ]; + } + + // pump the message loop + // in vga this calls KBD_Update, under X, it calls GetEvent + Sys_SendKeyEvents (); + + // check for console commands + s = Sys_ConsoleInput(); + if ( s ) + { + char *b; + int len; + + len = strlen( s ) + 1; + b = Z_Malloc( len ); + strcpy( b, s ); + Sys_QueEvent( 0, SE_CONSOLE, 0, 0, len, b ); + } + + // check for other input devices + IN_Frame(); + + // check for network packets + MSG_Init( &netmsg, sys_packetReceived, sizeof( sys_packetReceived ) ); + if ( Sys_GetPacket ( &adr, &netmsg ) ) + { + netadr_t *buf; + int len; + + // copy out to a seperate buffer for qeueing + len = sizeof( netadr_t ) + netmsg.cursize; + buf = Z_Malloc( len ); + *buf = adr; + memcpy( buf+1, netmsg.data, netmsg.cursize ); + Sys_QueEvent( 0, SE_PACKET, 0, 0, len, buf ); + } + + // return if we have data + if ( eventHead > eventTail ) + { + eventTail++; + return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ]; + } + + // create an empty event to return + + memset( &ev, 0, sizeof( ev ) ); + ev.evTime = Sys_Milliseconds(); + + return ev; +} + +/*****************************************************************************/ + +qboolean Sys_CheckCD( void ) { + return qtrue; +} + +void Sys_AppActivate (void) +{ +} + +char *Sys_GetClipboardData(void) +{ + return NULL; +} + +static struct Q3ToAnsiColorTable_s +{ + char Q3color; + char *ANSIcolor; +} tty_colorTable[ ] = +{ + { COLOR_BLACK, "30" }, + { COLOR_RED, "31" }, + { COLOR_GREEN, "32" }, + { COLOR_YELLOW, "33" }, + { COLOR_BLUE, "34" }, + { COLOR_CYAN, "36" }, + { COLOR_MAGENTA, "35" }, + { COLOR_WHITE, "0" } +}; + +static int tty_colorTableSize = + sizeof( tty_colorTable ) / sizeof( tty_colorTable[ 0 ] ); + +void Sys_ANSIColorify( const char *msg, char *buffer, int bufferSize ) +{ + int msgLength, pos; + int i, j; + char *escapeCode; + char tempBuffer[ 7 ]; + + if( !msg || !buffer ) + return; + + msgLength = strlen( msg ); + pos = 0; + i = 0; + buffer[ 0 ] = '\0'; + + while( i < msgLength ) + { + if( msg[ i ] == '\n' ) + { + Com_sprintf( tempBuffer, 7, "%c[0m\n", 0x1B ); + strncat( buffer, tempBuffer, bufferSize - 1); + i++; + } + else if( msg[ i ] == Q_COLOR_ESCAPE ) + { + i++; + + if( i < msgLength ) + { + escapeCode = NULL; + for( j = 0; j < tty_colorTableSize; j++ ) + { + if( msg[ i ] == tty_colorTable[ j ].Q3color ) + { + escapeCode = tty_colorTable[ j ].ANSIcolor; + break; + } + } + + if( escapeCode ) + { + Com_sprintf( tempBuffer, 7, "%c[%sm", 0x1B, escapeCode ); + strncat( buffer, tempBuffer, bufferSize - 1); + } + + i++; + } + } + else + { + Com_sprintf( tempBuffer, 7, "%c", msg[ i++ ] ); + strncat( buffer, tempBuffer, bufferSize - 1); + } + } +} + +void Sys_Print( const char *msg ) +{ + if (ttycon_on) + { + tty_Hide(); + } + + if( ttycon_on && ttycon_color_on ) + { + char ansiColorString[ MAXPRINTMSG ]; + Sys_ANSIColorify( msg, ansiColorString, MAXPRINTMSG ); + fputs( ansiColorString, stderr ); + } + else + fputs(msg, stderr); + + if (ttycon_on) + { + tty_Show(); + } +} + + +void Sys_ConfigureFPU( void ) { // bk001213 - divide by zero +#ifdef __linux__ +#ifdef __i386 +#ifndef NDEBUG + + // bk0101022 - enable FPE's in debug mode + static int fpu_word = _FPU_DEFAULT & ~(_FPU_MASK_ZM | _FPU_MASK_IM); + int current = 0; + _FPU_GETCW(current); + if ( current!=fpu_word) + { +#if 0 + Com_Printf("FPU Control 0x%x (was 0x%x)\n", fpu_word, current ); + _FPU_SETCW( fpu_word ); + _FPU_GETCW( current ); + assert(fpu_word==current); +#endif + } +#else // NDEBUG + static int fpu_word = _FPU_DEFAULT; + _FPU_SETCW( fpu_word ); +#endif // NDEBUG +#endif // __i386 +#endif // __linux +} + +void Sys_PrintBinVersion( const char* name ) { + char* date = __DATE__; + char* time = __TIME__; + char* sep = "=============================================================="; + fprintf( stdout, "\n\n%s\n", sep ); +#ifdef DEDICATED + fprintf( stdout, "Linux Tremulous Dedicated Server [%s %s]\n", date, time ); +#else + fprintf( stdout, "Linux Tremulous Full Executable [%s %s]\n", date, time ); +#endif + fprintf( stdout, " local install: %s\n", name ); + fprintf( stdout, "%s\n\n", sep ); +} + +/* +================= +Sys_BinName + +This resolves any symlinks to the binary. It's disabled for debug +builds because there are situations where you are likely to want +to symlink to binaries and /not/ have the links resolved. +================= +*/ +char *Sys_BinName( const char *arg0 ) +{ + static char dst[ PATH_MAX ]; + +#ifdef NDEBUG + +#ifdef __linux__ + int n = readlink( "/proc/self/exe", dst, PATH_MAX - 1 ); + + if( n >= 0 && n < PATH_MAX ) + dst[ n ] = '\0'; + else + Q_strncpyz( dst, arg0, PATH_MAX ); +#else +#warning Sys_BinName not implemented + Q_strncpyz( dst, arg0, PATH_MAX ); +#endif + +#else + Q_strncpyz( dst, arg0, PATH_MAX ); +#endif + + return dst; +} + +void Sys_ParseArgs( int argc, char* argv[] ) { + + if ( argc==2 ) + { + if ( (!strcmp( argv[1], "--version" )) + || ( !strcmp( argv[1], "-v" )) ) + { + Sys_PrintBinVersion( Sys_BinName( argv[0] ) ); + Sys_Exit(0); + } + } +} + +#ifdef MACOS_X +/* +================= +Sys_EscapeAppBundle + +Discovers if passed dir is suffixed with the directory structure of a +Mac OS X .app bundle. If it is, the .app directory structure is stripped off +the end and the result is returned. If not, dir is returned untouched. + +================= +*/ +char *Sys_StripAppBundle(char *dir) +{ + static char cwd[MAX_OSPATH]; + + Q_strncpyz(cwd, dir, sizeof(cwd)); + if(strcmp(basename(cwd), "MacOS")) + return dir; + Q_strncpyz(cwd, dirname(cwd), sizeof(cwd)); + if(strcmp(basename(cwd), "Contents")) + return dir; + Q_strncpyz(cwd, dirname(cwd), sizeof(cwd)); + if(!strstr(basename(cwd), ".app")) + return dir; + Q_strncpyz(cwd, dirname(cwd), sizeof(cwd)); + return cwd; +} +#endif /* MACOS_X */ + +#ifndef DEFAULT_BASEDIR + #ifdef MACOS_X + // if run from an .app bundle, we want to also search its containing dir + #define DEFAULT_BASEDIR Sys_StripAppBundle(Sys_DefaultCDPath()) + #else + #define DEFAULT_BASEDIR Sys_DefaultCDPath() + #endif +#endif + +#include "../client/client.h" +extern clientStatic_t cls; + +int main ( int argc, char* argv[] ) +{ + // int oldtime, newtime; // bk001204 - unused + int len, i; + char *cmdline; + char cdpath[PATH_MAX] = {0}; + void Sys_SetDefaultCDPath(const char *path); + + Sys_ParseArgs( argc, argv ); // bk010104 - added this for support + + strncat(cdpath, Sys_BinName( argv[0] ), sizeof(cdpath)-1); + Sys_SetDefaultCDPath(dirname(cdpath)); + + Sys_SetDefaultInstallPath(DEFAULT_BASEDIR); + + // merge the command line, this is kinda silly + for (len = 1, i = 1; i < argc; i++) + len += strlen(argv[i]) + 1; + cmdline = malloc(len); + *cmdline = 0; + for (i = 1; i < argc; i++) + { + if (i > 1) + strcat(cmdline, " "); + strcat(cmdline, argv[i]); + } + + // bk000306 - clear queues + memset( &eventQue[0], 0, MAX_QUED_EVENTS*sizeof(sysEvent_t) ); + memset( &sys_packetReceived[0], 0, MAX_MSGLEN*sizeof(byte) ); + + Com_Init(cmdline); + NET_Init(); + + Sys_ConsoleInputInit(); + + fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY); + +#ifdef DEDICATED + // init here for dedicated, as we don't have GLimp_Init + InitSig(); +#endif + + while (1) + { +#if !defined( DEDICATED ) && USE_SDL_VIDEO + int appState = SDL_GetAppState( ); + + // If we have no input focus at all, sleep a bit + if( !( appState & ( SDL_APPMOUSEFOCUS | SDL_APPINPUTFOCUS ) ) ) + usleep( 16000 ); + + // If we're minimised, sleep a bit more + if( !( appState & SDL_APPACTIVE ) ) + usleep( 32000 ); +#endif + +#ifdef __linux__ + Sys_ConfigureFPU(); +#endif + Com_Frame (); + } + + return 0; +} + |