mirror of https://bitbucket.org/CPMADevs/cnq3
748 lines
15 KiB
C++
748 lines
15 KiB
C++
/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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#include <dlfcn.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#if defined(__linux__)
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#include <sys/sysinfo.h>
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#elif defined(__FreeBSD__)
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#include <sys/user.h>
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#include <sys/sysctl.h>
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#endif
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#include <dirent.h>
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#include <errno.h>
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#include <inttypes.h>
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#ifdef DEDICATED
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#include <sys/wait.h>
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#endif
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#include "linux_local.h"
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#define MEM_THRESHOLD 96*1024*1024
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static void LIN_MicroSleep( int us )
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{
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timespec req, rem;
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req.tv_sec = us / 1000000;
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req.tv_nsec = (us % 1000000) * 1000;
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while (clock_nanosleep(CLOCK_REALTIME, 0, &req, &rem) == EINTR) {
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req = rem;
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}
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}
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void Sys_Sleep( int ms )
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{
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LIN_MicroSleep(ms * 1000);
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}
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void Sys_MicroSleep( int us )
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{
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LIN_MicroSleep(us);
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}
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int64_t Sys_Microseconds()
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{
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timespec ts;
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clock_gettime(CLOCK_REALTIME, &ts);
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return (int64_t)ts.tv_sec * 1000000 + (int64_t)ts.tv_nsec / 1000;
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}
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qboolean Sys_LowPhysicalMemory()
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{
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return qfalse; // FIXME
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}
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void Sys_Error( const char *error, ... )
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{
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va_list argptr;
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char string[1024];
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if (tty_Enabled())
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tty_Hide();
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#ifndef DEDICATED
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CL_Shutdown();
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#endif
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va_start (argptr,error);
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vsprintf (string,error,argptr);
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va_end (argptr);
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fprintf(stderr, "Sys_Error: %s\n", string);
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Lin_ConsoleInputShutdown();
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exit(1);
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}
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void Sys_Quit( int status )
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{
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Lin_ConsoleInputShutdown();
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exit( status );
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}
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///////////////////////////////////////////////////////////////
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const char* Sys_DllError()
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{
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return dlerror();
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}
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void Sys_UnloadDll( void* dllHandle )
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{
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if ( !dllHandle )
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return;
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dlclose( dllHandle );
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const char* err = Sys_DllError();
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if ( err ) {
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Com_Error( ERR_FATAL, "Sys_UnloadDll failed: %s\n", err );
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}
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}
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static void* try_dlopen( const char* base, const char* gamedir, const char* filename )
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{
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const char* fn = FS_BuildOSPath( base, gamedir, filename );
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void* libHandle = dlopen( fn, RTLD_NOW );
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if (!libHandle) {
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Com_Printf( "Sys_LoadDll(%s) failed: %s\n", fn, Sys_DllError() );
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return NULL;
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}
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Com_Printf( "Sys_LoadDll(%s) succeeded\n", fn );
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return libHandle;
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}
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// used to load a development dll instead of a virtual machine
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// in release builds, the load procedure matches the VFS logic (fs_homepath, then fs_basepath)
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// in debug builds, the current working directory is tried first
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void* QDECL Sys_LoadDll( const char* name, dllSyscall_t *entryPoint, dllSyscall_t systemcalls )
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{
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char filename[MAX_QPATH];
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Com_sprintf( filename, sizeof( filename ), "%s" ARCH_STRING DLL_EXT, name );
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void* libHandle = 0;
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// FIXME: use fs_searchpaths from files.c
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const char* homepath = Cvar_VariableString( "fs_homepath" );
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const char* basepath = Cvar_VariableString( "fs_basepath" );
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const char* gamedir = Cvar_VariableString( "fs_game" );
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#ifndef NDEBUG
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libHandle = try_dlopen( Sys_Cwd(), gamedir, filename );
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#endif
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if (!libHandle && homepath)
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libHandle = try_dlopen( homepath, gamedir, filename );
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if (!libHandle && basepath)
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libHandle = try_dlopen( basepath, gamedir, filename );
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if ( !libHandle )
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return NULL;
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dllEntry_t dllEntry = (dllEntry_t)dlsym( libHandle, "dllEntry" );
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*entryPoint = (dllSyscall_t)dlsym( libHandle, "vmMain" );
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if ( !*entryPoint || !dllEntry ) {
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const char* err = Sys_DllError();
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Com_Printf( "Sys_LoadDll(%s) failed dlsym: %s\n", name, err );
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Sys_UnloadDll( libHandle );
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return NULL;
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}
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dllEntry( systemcalls );
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return libHandle;
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}
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#ifdef DEDICATED
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char *Sys_GetClipboardData(void)
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{
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return NULL;
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}
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#endif
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void Sys_Init()
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{
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Cvar_Set( "arch", OS_STRING " " ARCH_STRING );
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}
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qbool Sys_HardReboot()
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{
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#ifdef DEDICATED
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return qtrue;
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#else
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return qfalse;
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#endif
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}
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#ifdef DEDICATED
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static int Lin_RunProcess( char** argv )
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{
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const pid_t pid = fork();
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if (pid == 0) {
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if (execve(argv[0], argv , NULL) == -1) {
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fprintf(stderr, "failed to launch child process: %s\n", strerror(errno));
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_exit(1); // quit without calling atexit handlers
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return 0;
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}
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}
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int status;
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while (waitpid(pid, &status, WNOHANG) == 0)
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sleep(1); // in seconds
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return WEXITSTATUS(status);
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}
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void Lin_HardRebootHandler( int argc, char** argv )
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{
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for (int i = 0; i < argc; ++i) {
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if (!Q_stricmp(argv[i], "nohardreboot")) {
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return;
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}
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}
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static char* args[256];
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if (argc + 2 >= sizeof(args) / sizeof(args[0])) {
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fprintf(stderr, "too many arguments: %d\n", argc);
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_exit(1); // quit without calling atexit handlers
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return;
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}
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for (int i = 0; i < argc; ++i)
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args[i] = argv[i];
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args[argc + 0] = (char*)"nohardreboot";
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args[argc + 1] = NULL;
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SIG_InitParent();
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for (;;) {
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if (Lin_RunProcess(args) == 0)
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_exit(0); // quit without calling atexit handlers
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}
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}
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#endif
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static qbool lin_hasParent = qfalse;
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static pid_t lix_parentPid;
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static const char* Lin_GetExeName(const char* path)
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{
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const char* lastSlash = strrchr(path, '/');
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if (lastSlash == NULL)
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return path;
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return lastSlash + 1;
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}
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void Lin_TrackParentProcess()
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{
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#if defined(__linux__)
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static char cmdLine[1024];
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char fileName[128];
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Com_sprintf(fileName, sizeof(fileName), "/proc/%d/cmdline", (int)getppid());
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const int fd = open(fileName, O_RDONLY);
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if (fd == -1)
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return;
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const qbool hasCmdLine = read(fd, cmdLine, sizeof(cmdLine)) > 0;
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close(fd);
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if (!hasCmdLine)
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return;
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cmdLine[sizeof(cmdLine) - 1] = '\0';
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lin_hasParent = strcmp(Lin_GetExeName(cmdLine), Lin_GetExeName(q_argv[0])) == 0;
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#elif defined(__FreeBSD__)
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static char cmdLine[1024];
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int mib[4];
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_ARGS;
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mib[3] = getppid();
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size_t length = sizeof(cmdLine);
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if (sysctl(mib, 4, cmdLine, &length, NULL, 0) != 0)
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return;
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cmdLine[sizeof(cmdLine) - 1] = '\0';
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lin_hasParent = strcmp(Lin_GetExeName(cmdLine), Lin_GetExeName(q_argv[0])) == 0;
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#endif
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}
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qbool Sys_HasCNQ3Parent()
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{
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return lin_hasParent;
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}
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static int Sys_GetProcessUptime( pid_t pid )
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{
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#if defined(__linux__)
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// length must be in sync with the fscanf call!
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static char word[256];
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// The process start time is the 22nd column and
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// encoded as jiffies after system boot.
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const int jiffiesPerSec = sysconf(_SC_CLK_TCK);
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if (jiffiesPerSec <= 0)
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return -1;
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char fileName[128];
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Com_sprintf(fileName, sizeof(fileName), "/proc/%" PRIu64 "/stat", (uint64_t)pid);
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FILE* const file = fopen(fileName, "r");
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if (file == NULL)
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return -1;
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for (int i = 0; i < 21; ++i) {
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if (fscanf(file, "%255s", word) != 1) {
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fclose(file);
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return -1;
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}
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}
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int64_t jiffies;
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const bool success = fscanf(file, "%" PRId64, &jiffies) == 1;
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fclose(file);
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if (!success)
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return -1;
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const int64_t secondsSinceBoot = jiffies / (int64_t)jiffiesPerSec;
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struct sysinfo info;
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sysinfo(&info);
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const int64_t uptime = (int64_t)info.uptime - secondsSinceBoot;
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return (int)uptime;
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#elif defined(__FreeBSD__)
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int mib[4];
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mib[0] = CTL_KERN;
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mib[1] = KERN_PROC;
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mib[2] = KERN_PROC_PID;
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mib[3] = pid;
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struct kinfo_proc kp;
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size_t len = sizeof(kp);
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if (sysctl(mib, 4, &kp, &len, NULL, 0) != 0) {
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return -1;
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}
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struct timeval now;
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gettimeofday(&now, NULL);
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return (int)(now.tv_sec - kp.ki_start.tv_sec);
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#else
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return -1;
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#endif
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}
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int Sys_GetUptimeSeconds( qbool parent )
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{
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if (!lin_hasParent)
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return -1;
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return Sys_GetProcessUptime( parent ? getppid() : getpid() );
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}
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void Sys_LoadHistory()
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{
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#ifdef DEDICATED
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History_LoadFromFile( tty_GetHistory() );
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#else
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History_LoadFromFile( &g_history );
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#endif
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}
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void Sys_SaveHistory()
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{
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#ifdef DEDICATED
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History_SaveToFile( tty_GetHistory() );
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#else
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History_SaveToFile( &g_history );
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#endif
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}
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int Sys_Milliseconds()
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{
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static int sys_timeBase = 0;
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struct timeval tv;
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gettimeofday( &tv, NULL );
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if (!sys_timeBase) {
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sys_timeBase = tv.tv_sec;
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return tv.tv_usec/1000;
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}
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return ((tv.tv_sec - sys_timeBase)*1000 + tv.tv_usec/1000);
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}
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void Sys_Mkdir( const char* path )
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{
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mkdir( path, 0777 );
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}
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#define MAX_FOUND_FILES 0x1000
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// bk001129 - new in 1.26
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static void Sys_ListFilteredFiles( const char *basedir, const char *subdirs, const char *filter, char **list, int *numfiles ) {
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char search[MAX_OSPATH], newsubdirs[MAX_OSPATH];
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char filename[MAX_OSPATH];
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DIR *fdir;
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struct dirent *d;
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struct stat st;
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if ( *numfiles >= MAX_FOUND_FILES - 1 ) {
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return;
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}
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if (strlen(subdirs)) {
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Com_sprintf( search, sizeof(search), "%s/%s", basedir, subdirs );
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}
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else {
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Com_sprintf( search, sizeof(search), "%s", basedir );
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}
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|
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if ((fdir = opendir(search)) == NULL) {
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return;
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}
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while ((d = readdir(fdir)) != NULL) {
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Com_sprintf(filename, sizeof(filename), "%s/%s", search, d->d_name);
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if (stat(filename, &st) == -1)
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continue;
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if (st.st_mode & S_IFDIR) {
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if (Q_stricmp(d->d_name, ".") && Q_stricmp(d->d_name, "..")) {
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if (strlen(subdirs)) {
|
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Com_sprintf( newsubdirs, sizeof(newsubdirs), "%s/%s", subdirs, d->d_name);
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}
|
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else {
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Com_sprintf( newsubdirs, sizeof(newsubdirs), "%s", d->d_name);
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}
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Sys_ListFilteredFiles( basedir, newsubdirs, filter, list, numfiles );
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}
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}
|
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if ( *numfiles >= MAX_FOUND_FILES - 1 ) {
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break;
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}
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Com_sprintf( filename, sizeof(filename), "%s/%s", subdirs, d->d_name );
|
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if (!Com_FilterPath( filter, filename ))
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continue;
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list[ *numfiles ] = CopyString( filename );
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(*numfiles)++;
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}
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|
|
closedir(fdir);
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}
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|
|
char **Sys_ListFiles( const char *directory, const char *extension, const char *filter, int *numfiles, qboolean wantsubs )
|
|
{
|
|
struct dirent *d;
|
|
DIR *fdir;
|
|
qboolean dironly = wantsubs;
|
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char search[MAX_OSPATH];
|
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int nfiles;
|
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char **listCopy;
|
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char *list[MAX_FOUND_FILES];
|
|
int i;
|
|
struct stat st;
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|
|
|
int extLen;
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|
|
|
if (filter) {
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|
|
|
nfiles = 0;
|
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Sys_ListFilteredFiles( directory, "", filter, list, &nfiles );
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|
|
list[ nfiles ] = NULL;
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|
*numfiles = nfiles;
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|
|
|
if (!nfiles)
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|
return NULL;
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|
|
|
listCopy = (char**)Z_Malloc( ( nfiles + 1 ) * sizeof( *listCopy ) );
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|
for ( i = 0 ; i < nfiles ; i++ ) {
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listCopy[i] = list[i];
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|
}
|
|
listCopy[i] = NULL;
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|
|
|
return listCopy;
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|
}
|
|
|
|
if ( !extension)
|
|
extension = "";
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|
|
|
if ( extension[0] == '/' && extension[1] == 0 ) {
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|
extension = "";
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|
dironly = qtrue;
|
|
}
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|
|
|
extLen = strlen( extension );
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|
|
// search
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|
nfiles = 0;
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|
|
|
if ((fdir = opendir(directory)) == NULL) {
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|
*numfiles = 0;
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|
return NULL;
|
|
}
|
|
|
|
while ((d = readdir(fdir)) != NULL) {
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|
Com_sprintf(search, sizeof(search), "%s/%s", directory, d->d_name);
|
|
if (stat(search, &st) == -1)
|
|
continue;
|
|
if ((dironly && !(st.st_mode & S_IFDIR)) ||
|
|
(!dironly && (st.st_mode & S_IFDIR)))
|
|
continue;
|
|
|
|
if (*extension) {
|
|
if ( strlen( d->d_name ) < strlen( extension ) ||
|
|
Q_stricmp(
|
|
d->d_name + strlen( d->d_name ) - strlen( extension ),
|
|
extension ) ) {
|
|
continue; // didn't match
|
|
}
|
|
}
|
|
|
|
if ( nfiles == MAX_FOUND_FILES - 1 )
|
|
break;
|
|
list[ nfiles ] = CopyString( d->d_name );
|
|
nfiles++;
|
|
}
|
|
|
|
list[ nfiles ] = NULL;
|
|
|
|
closedir(fdir);
|
|
|
|
// return a copy of the list
|
|
*numfiles = nfiles;
|
|
|
|
if ( !nfiles ) {
|
|
return NULL;
|
|
}
|
|
|
|
listCopy = (char**)Z_Malloc( ( nfiles + 1 ) * sizeof( *listCopy ) );
|
|
for ( i = 0 ; i < nfiles ; i++ ) {
|
|
listCopy[i] = list[i];
|
|
}
|
|
listCopy[i] = NULL;
|
|
|
|
return listCopy;
|
|
}
|
|
|
|
void Sys_FreeFileList( char **list ) {
|
|
int i;
|
|
|
|
if ( !list ) {
|
|
return;
|
|
}
|
|
|
|
for ( i = 0 ; list[i] ; i++ ) {
|
|
Z_Free( list[i] );
|
|
}
|
|
|
|
Z_Free( list );
|
|
}
|
|
|
|
|
|
const char* Sys_Cwd()
|
|
{
|
|
static char cwd[MAX_OSPATH];
|
|
|
|
getcwd( cwd, sizeof( cwd ) - 1 );
|
|
cwd[MAX_OSPATH-1] = 0;
|
|
|
|
return cwd;
|
|
}
|
|
|
|
|
|
const char* Sys_DefaultHomePath()
|
|
{
|
|
// Used to determine where to store user-specific files
|
|
static char homePath[MAX_OSPATH];
|
|
|
|
if (*homePath)
|
|
return homePath;
|
|
|
|
const char* const p = getenv("HOME");
|
|
if (p != NULL) {
|
|
Q_strncpyz(homePath, p, sizeof(homePath));
|
|
#ifdef MACOS_X
|
|
Q_strcat(homePath, sizeof(homePath), "/Library/Application Support/Quake3");
|
|
#else
|
|
Q_strcat(homePath, sizeof(homePath), "/.q3a");
|
|
#endif
|
|
if (mkdir(homePath, 0777)) {
|
|
if (errno != EEXIST)
|
|
Sys_Error("Unable to create directory \"%s\", error is %s(%d)\n", homePath, strerror(errno), errno);
|
|
}
|
|
return homePath;
|
|
}
|
|
|
|
return ""; // assume current dir
|
|
}
|
|
|
|
|
|
void Sys_ShowConsole( int visLevel, qboolean quitOnClose )
|
|
{
|
|
}
|
|
|
|
|
|
#define MAX_QUED_EVENTS 512
|
|
#define MASK_QUED_EVENTS ( MAX_QUED_EVENTS - 1 )
|
|
|
|
static sysEvent_t eventQue[MAX_QUED_EVENTS];
|
|
static int eventHead, eventTail;
|
|
|
|
|
|
// 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 Lin_QueEvent( int time, sysEventType_t type, int value, int value2, int ptrLength, void *ptr )
|
|
{
|
|
sysEvent_t* ev = &eventQue[ eventHead & MASK_QUED_EVENTS ];
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
sysEvent_t Sys_GetEvent()
|
|
{
|
|
// return if we have data
|
|
if ( eventHead > eventTail ) {
|
|
++eventTail;
|
|
return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
|
|
}
|
|
|
|
// check for console commands
|
|
const char* s = Lin_ConsoleInput();
|
|
if ( s ) {
|
|
const int slen = strlen( s );
|
|
const int blen = slen + 1;
|
|
char* b = (char*)Z_Malloc( blen );
|
|
Q_strncpyz( b, s, blen );
|
|
Lin_QueEvent( 0, SE_CONSOLE, 0, 0, slen, b );
|
|
}
|
|
|
|
#ifndef DEDICATED
|
|
sdl_PollEvents();
|
|
#endif
|
|
|
|
// check for network packets
|
|
msg_t netmsg;
|
|
netadr_t adr;
|
|
static byte sys_packetReceived[MAX_MSGLEN]; // static or it'll blow half the stack
|
|
MSG_Init( &netmsg, sys_packetReceived, sizeof( sys_packetReceived ) );
|
|
if ( Sys_GetPacket( &adr, &netmsg ) ) {
|
|
// copy out to a separate buffer for queuing
|
|
int len = sizeof( netadr_t ) + netmsg.cursize;
|
|
netadr_t* buf = (netadr_t*)Z_Malloc( len );
|
|
*buf = adr;
|
|
memcpy( buf+1, netmsg.data, netmsg.cursize );
|
|
Lin_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
|
|
sysEvent_t ev;
|
|
memset( &ev, 0, sizeof( ev ) );
|
|
ev.evTime = Sys_Milliseconds();
|
|
return ev;
|
|
}
|
|
|
|
|
|
void Sys_DebugPrintf( const char*, ... )
|
|
{
|
|
}
|