X-Git-Url: http://git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=sys_shared.c;h=3c6b0356698b63bb9bf8007ff6c5c9e8820739da;hp=695f34651893c63047cff347ec83e4bc1421d767;hb=4d34e0a632cbc401712f46e10bb9864438b0881f;hpb=87665e3d8fa1c4ab1276becc1da124eea79a53dd diff --git a/sys_shared.c b/sys_shared.c index 695f3465..3c6b0356 100644 --- a/sys_shared.c +++ b/sys_shared.c @@ -1,14 +1,16 @@ +#ifdef WIN32 +# ifndef DONT_USE_SETDLLDIRECTORY +# define _WIN32_WINNT 0x0502 +# endif +#endif + #include "quakedef.h" +#include "taskqueue.h" +#include "thread.h" #define SUPPORTDLL #ifdef WIN32 -# ifdef _WIN64 -# ifndef _WIN32_WINNT -# define _WIN32_WINNT 0x0502 -# endif - // for SetDllDirectory -# endif # include # include // timeGetTime # include // localtime @@ -16,6 +18,9 @@ #pragma comment(lib, "winmm.lib") #endif #else +# ifdef __FreeBSD__ +# include +# endif # include # include # include @@ -40,26 +45,37 @@ char *Sys_TimeString(const char *timeformat) } -extern qboolean host_shuttingdown; void Sys_Quit (int returnvalue) { - if (COM_CheckParm("-profilegameonly")) + // Unlock mutexes because the quit command may jump directly here, causing a deadlock + if ((cmd_local)->cbuf->lock) + Cbuf_Unlock((cmd_local)->cbuf); + SV_UnlockThreadMutex(); + TaskQueue_Frame(true); + + if (Sys_CheckParm("-profilegameonly")) Sys_AllowProfiling(false); - host_shuttingdown = true; + host.state = host_shutdown; Host_Shutdown(); exit(returnvalue); } -#if defined(__linux__) || defined(__FreeBSD__) #ifdef __cplusplus extern "C" #endif -int moncontrol(int); -#endif - -void Sys_AllowProfiling(qboolean enable) +void Sys_AllowProfiling(qbool enable) { -#if defined(__linux__) || defined(__FreeBSD__) +#ifdef __ANDROID__ +#ifdef USE_PROFILER + extern void monstartup(const char *libname); + extern void moncleanup(void); + if (enable) + monstartup("libmain.so"); + else + moncleanup(); +#endif +#elif (defined(__linux__) && (defined(__GLIBC__) || defined(__GNU_LIBRARY__))) || defined(__FreeBSD__) + extern int moncontrol(int); moncontrol(enable); #endif } @@ -73,7 +89,7 @@ DLL MANAGEMENT =============================================================================== */ -static qboolean Sys_LoadLibraryFunctions(dllhandle_t dllhandle, const dllfunction_t *fcts, qboolean complain, qboolean has_next) +static qbool Sys_LoadDependencyFunctions(dllhandle_t dllhandle, const dllfunction_t *fcts, qbool complain, qbool has_next) { const dllfunction_t *func; if(dllhandle) @@ -98,7 +114,22 @@ static qboolean Sys_LoadLibraryFunctions(dllhandle_t dllhandle, const dllfunctio return false; } -qboolean Sys_LoadLibrary (const char** dllnames, dllhandle_t* handle, const dllfunction_t *fcts) +qbool Sys_LoadSelf(dllhandle_t *handle) +{ + dllhandle_t dllhandle = 0; + + if (handle == NULL) + return false; +#ifdef WIN32 + dllhandle = LoadLibrary (NULL); +#else + dllhandle = dlopen (NULL, RTLD_NOW | RTLD_GLOBAL); +#endif + *handle = dllhandle; + return true; +} + +qbool Sys_LoadDependency (const char** dllnames, dllhandle_t* handle, const dllfunction_t *fcts) { #ifdef SUPPORTDLL const dllfunction_t *func; @@ -111,14 +142,14 @@ qboolean Sys_LoadLibrary (const char** dllnames, dllhandle_t* handle, const dllf #ifndef WIN32 #ifdef PREFER_PRELOAD dllhandle = dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL); - if(Sys_LoadLibraryFunctions(dllhandle, fcts, false, false)) + if(Sys_LoadDependencyFunctions(dllhandle, fcts, false, false)) { Con_DPrintf ("All of %s's functions were already linked in! Not loading dynamically...\n", dllnames[0]); *handle = dllhandle; return true; } else - Sys_UnloadLibrary(&dllhandle); + Sys_FreeLibrary(&dllhandle); notfound: #endif #endif @@ -133,28 +164,29 @@ notfound: { Con_DPrintf (" \"%s\"", dllnames[i]); #ifdef WIN32 -# ifdef _WIN64 +# ifndef DONT_USE_SETDLLDIRECTORY +# ifdef _WIN64 SetDllDirectory("bin64"); +# else + SetDllDirectory("bin32"); +# endif # endif - dllhandle = LoadLibrary (dllnames[i]); -# ifdef _WIN64 - SetDllDirectory(NULL); -# endif -#else - dllhandle = dlopen (dllnames[i], RTLD_LAZY | RTLD_GLOBAL); #endif - if (Sys_LoadLibraryFunctions(dllhandle, fcts, true, (dllnames[i+1] != NULL) || (strrchr(com_argv[0], '/')))) - break; - else - Sys_UnloadLibrary (&dllhandle); + if(Sys_LoadLibrary(dllnames[i], &dllhandle)) + { + if (Sys_LoadDependencyFunctions(dllhandle, fcts, true, (dllnames[i+1] != NULL) || (strrchr(sys.argv[0], '/')))) + break; + else + Sys_FreeLibrary (&dllhandle); + } } // see if the names can be loaded relative to the executable path // (this is for Mac OSX which does not check next to the executable) - if (!dllhandle && strrchr(com_argv[0], '/')) + if (!dllhandle && strrchr(sys.argv[0], '/')) { char path[MAX_OSPATH]; - strlcpy(path, com_argv[0], sizeof(path)); + strlcpy(path, sys.argv[0], sizeof(path)); strrchr(path, '/')[1] = 0; for (i = 0; dllnames[i] != NULL; i++) { @@ -162,15 +194,14 @@ notfound: strlcpy(temp, path, sizeof(temp)); strlcat(temp, dllnames[i], sizeof(temp)); Con_DPrintf (" \"%s\"", temp); -#ifdef WIN32 - dllhandle = LoadLibrary (temp); -#else - dllhandle = dlopen (temp, RTLD_LAZY | RTLD_GLOBAL); -#endif - if (Sys_LoadLibraryFunctions(dllhandle, fcts, true, dllnames[i+1] != NULL)) - break; - else - Sys_UnloadLibrary (&dllhandle); + + if(Sys_LoadLibrary(temp, &dllhandle)) + { + if (Sys_LoadDependencyFunctions(dllhandle, fcts, true, (dllnames[i+1] != NULL) || (strrchr(sys.argv[0], '/')))) + break; + else + Sys_FreeLibrary (&dllhandle); + } } } @@ -182,6 +213,7 @@ notfound: } Con_DPrintf(" - loaded.\n"); + Con_Printf("Loaded library \"%s\"\n", dllnames[i]); *handle = dllhandle; return true; @@ -190,7 +222,28 @@ notfound: #endif } -void Sys_UnloadLibrary (dllhandle_t* handle) +qbool Sys_LoadLibrary(const char *name, dllhandle_t *handle) +{ + dllhandle_t dllhandle = 0; + + if(handle == NULL) + return false; + +#ifdef SUPPORTDLL +# ifdef WIN32 + dllhandle = LoadLibrary (name); +# else + dllhandle = dlopen (name, RTLD_LAZY | RTLD_GLOBAL); +# endif +#endif + if(!dllhandle) + return false; + + *handle = dllhandle; + return true; +} + +void Sys_FreeLibrary (dllhandle_t* handle) { #ifdef SUPPORTDLL if (handle == NULL || *handle == NULL) @@ -225,11 +278,10 @@ void* Sys_GetProcAddress (dllhandle_t handle, const char* name) # define HAVE_Sleep 1 #endif +#ifndef WIN32 #if defined(CLOCK_MONOTONIC) || defined(CLOCK_HIRES) # define HAVE_CLOCKGETTIME 1 #endif - -#ifndef WIN32 // FIXME improve this check, manpage hints to DST_NONE # define HAVE_GETTIMEOFDAY 1 #endif @@ -247,26 +299,51 @@ void* Sys_GetProcAddress (dllhandle_t handle, const char* name) # define HAVE_USLEEP 1 #endif -// this one is referenced elsewhere -cvar_t sys_usenoclockbutbenchmark = {CVAR_SAVE, "sys_usenoclockbutbenchmark", "0", "don't use ANY real timing, and simulate a clock (for benchmarking); the game then runs as fast as possible. Run a QC mod with bots that does some stuff, then does a quit at the end, to benchmark a server. NEVER do this on a public server."}; +// these are referenced elsewhere +cvar_t sys_usenoclockbutbenchmark = {CF_CLIENT | CF_SERVER | CF_ARCHIVE, "sys_usenoclockbutbenchmark", "0", "don't use ANY real timing, and simulate a clock (for benchmarking); the game then runs as fast as possible. Run a QC mod with bots that does some stuff, then does a quit at the end, to benchmark a server. NEVER do this on a public server."}; +cvar_t sys_libdir = {CF_READONLY | CF_CLIENT | CF_SERVER, "sys_libdir", "", "Default engine library directory"}; // these are not -static cvar_t sys_debugsleep = {0, "sys_debugsleep", "0", "write requested and attained sleep times to standard output, to be used with gnuplot"}; -static cvar_t sys_usesdlgetticks = {CVAR_SAVE, "sys_usesdlgetticks", "0", "use SDL_GetTicks() timer (less accurate, for debugging)"}; -static cvar_t sys_usesdldelay = {CVAR_SAVE, "sys_usesdldelay", "0", "use SDL_Delay() (less accurate, for debugging)"}; +static cvar_t sys_debugsleep = {CF_CLIENT | CF_SERVER, "sys_debugsleep", "0", "write requested and attained sleep times to standard output, to be used with gnuplot"}; +static cvar_t sys_usesdlgetticks = {CF_CLIENT | CF_SERVER | CF_ARCHIVE, "sys_usesdlgetticks", "0", "use SDL_GetTicks() timer (less accurate, for debugging)"}; +static cvar_t sys_usesdldelay = {CF_CLIENT | CF_SERVER | CF_ARCHIVE, "sys_usesdldelay", "0", "use SDL_Delay() (less accurate, for debugging)"}; #if HAVE_QUERYPERFORMANCECOUNTER -static cvar_t sys_usequeryperformancecounter = {CVAR_SAVE, "sys_usequeryperformancecounter", "0", "use windows QueryPerformanceCounter timer (which has issues on multicore/multiprocessor machines and processors which are designed to conserve power) for timing rather than timeGetTime function (which has issues on some motherboards)"}; +static cvar_t sys_usequeryperformancecounter = {CF_CLIENT | CF_SERVER | CF_ARCHIVE, "sys_usequeryperformancecounter", "0", "use windows QueryPerformanceCounter timer (which has issues on multicore/multiprocessor machines and processors which are designed to conserve power) for timing rather than timeGetTime function (which has issues on some motherboards)"}; #endif #if HAVE_CLOCKGETTIME -static cvar_t sys_useclockgettime = {CVAR_SAVE, "sys_useclockgettime", "0", "use POSIX clock_gettime function (which has issues if the system clock speed is far off, as it can't get fixed by NTP) for timing rather than gettimeofday (which has issues if the system time is stepped by ntpdate, or apparently on some Xen installations)"}; +static cvar_t sys_useclockgettime = {CF_CLIENT | CF_SERVER | CF_ARCHIVE, "sys_useclockgettime", "1", "use POSIX clock_gettime function (not adjusted by NTP on some older Linux kernels) for timing rather than gettimeofday (which has issues if the system time is stepped by ntpdate, or apparently on some Xen installations)"}; #endif -static unsigned long benchmark_time; +static double benchmark_time; // actually always contains an integer amount of milliseconds, will eventually "overflow" + +/* +================ +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 oldtime + 1800) - { - Con_Printf("Sys_DoubleTime: time stepped forward (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime); - } - else - curtime += newtime - oldtime; - oldtime = newtime; - - return curtime; } void Sys_Sleep(int microseconds) @@ -415,12 +460,18 @@ void Sys_Sleep(int microseconds) double t = 0; if(sys_usenoclockbutbenchmark.integer) { - benchmark_time += microseconds; + if(microseconds) + { + double old_benchmark_time = benchmark_time; + benchmark_time += microseconds; + if(benchmark_time == old_benchmark_time) + Sys_Error("sys_usenoclockbutbenchmark cannot run any longer, sorry"); + } return; } if(sys_debugsleep.integer) { - t = Sys_DoubleTime(); + t = Sys_DirtyTime(); } if(sys_supportsdlgetticks && sys_usesdldelay.integer) { @@ -452,12 +503,25 @@ void Sys_Sleep(int microseconds) #endif if(sys_debugsleep.integer) { - t = Sys_DoubleTime() - t; - printf("%d %d # debugsleep\n", microseconds, (unsigned int)(t * 1000000)); + t = Sys_DirtyTime() - t; + Sys_PrintfToTerminal("%d %d # debugsleep\n", microseconds, (unsigned int)(t * 1000000)); } } -const char *Sys_FindInPATH(const char *name, char namesep, const char *PATH, char pathsep, char *buf, size_t bufsize) +void Sys_PrintfToTerminal(const char *fmt, ...) +{ + va_list argptr; + char msg[MAX_INPUTLINE]; + + va_start(argptr,fmt); + dpvsnprintf(msg,sizeof(msg),fmt,argptr); + va_end(argptr); + + Sys_PrintToTerminal(msg); +} + +#ifndef WIN32 +static const char *Sys_FindInPATH(const char *name, char namesep, const char *PATH, char pathsep, char *buf, size_t bufsize) { const char *p = PATH; const char *q; @@ -479,16 +543,22 @@ const char *Sys_FindInPATH(const char *name, char namesep, const char *PATH, cha } return name; } +#endif -const char *Sys_FindExecutableName(void) +static const char *Sys_FindExecutableName(void) { #if defined(WIN32) - return com_argv[0]; + return sys.argv[0]; #else static char exenamebuf[MAX_OSPATH+1]; ssize_t n = -1; #if defined(__FreeBSD__) - n = readlink("/proc/curproc/file", exenamebuf, sizeof(exenamebuf)-1); + int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1}; + size_t exenamebuflen = sizeof(exenamebuf)-1; + if (sysctl(mib, 4, exenamebuf, &exenamebuflen, NULL, 0) == 0) + { + n = exenamebuflen; + } #elif defined(__linux__) n = readlink("/proc/self/exe", exenamebuf, sizeof(exenamebuf)-1); #endif @@ -497,16 +567,149 @@ const char *Sys_FindExecutableName(void) exenamebuf[n] = 0; return exenamebuf; } - if(strchr(com_argv[0], '/')) - return com_argv[0]; // possibly a relative path + if(strchr(sys.argv[0], '/')) + return sys.argv[0]; // possibly a relative path else - return Sys_FindInPATH(com_argv[0], '/', getenv("PATH"), ':', exenamebuf, sizeof(exenamebuf)); + return Sys_FindInPATH(sys.argv[0], '/', getenv("PATH"), ':', exenamebuf, sizeof(exenamebuf)); #endif } void Sys_ProvideSelfFD(void) { - if(com_selffd != -1) + if(sys.selffd != -1) + return; + sys.selffd = FS_SysOpenFD(Sys_FindExecutableName(), "rb", false); +} + +// for x86 cpus only... (x64 has SSE2_PRESENT) +#if defined(SSE_POSSIBLE) && !defined(SSE2_PRESENT) +// code from SDL, shortened as we can expect CPUID to work +static int CPUID_Features(void) +{ + int features = 0; +# if (defined(__GNUC__) || defined(__clang__) || defined(__TINYC__)) && defined(__i386__) + __asm__ ( +" movl %%ebx,%%edi\n" +" xorl %%eax,%%eax \n" +" incl %%eax \n" +" cpuid # Get family/model/stepping/features\n" +" movl %%edx,%0 \n" +" movl %%edi,%%ebx\n" + : "=m" (features) + : + : "%eax", "%ecx", "%edx", "%edi" + ); +# elif (defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__) + __asm { + xor eax, eax + inc eax + cpuid ; Get family/model/stepping/features + mov features, edx + } +# else +# error SSE_POSSIBLE set but no CPUID implementation +# endif + return features; +} +#endif + +#ifdef SSE_POSSIBLE +qbool Sys_HaveSSE(void) +{ + // COMMANDLINEOPTION: SSE: -nosse disables SSE support and detection + if(Sys_CheckParm("-nosse")) + return false; +#ifdef SSE_PRESENT + return true; +#else + // COMMANDLINEOPTION: SSE: -forcesse enables SSE support and disables detection + if(Sys_CheckParm("-forcesse") || Sys_CheckParm("-forcesse2")) + return true; + if(CPUID_Features() & (1 << 25)) + return true; + return false; +#endif +} + +qbool Sys_HaveSSE2(void) +{ + // COMMANDLINEOPTION: SSE2: -nosse2 disables SSE2 support and detection + if(Sys_CheckParm("-nosse") || Sys_CheckParm("-nosse2")) + return false; +#ifdef SSE2_PRESENT + return true; +#else + // COMMANDLINEOPTION: SSE2: -forcesse2 enables SSE2 support and disables detection + if(Sys_CheckParm("-forcesse2")) + return true; + if((CPUID_Features() & (3 << 25)) == (3 << 25)) // SSE is 1<<25, SSE2 is 1<<26 + return true; + return false; +#endif +} +#endif + +/// called to set process priority for dedicated servers +#if defined(__linux__) +#include +#include + +void Sys_InitProcessNice (void) +{ + struct rlimit lim; + sys.nicepossible = false; + if(Sys_CheckParm("-nonice")) + return; + errno = 0; + sys.nicelevel = getpriority(PRIO_PROCESS, 0); + if(errno) + { + Con_Printf("Kernel does not support reading process priority - cannot use niceness\n"); + return; + } + if(getrlimit(RLIMIT_NICE, &lim)) + { + Con_Printf("Kernel does not support lowering nice level again - cannot use niceness\n"); + return; + } + if(lim.rlim_cur != RLIM_INFINITY && sys.nicelevel < (int) (20 - lim.rlim_cur)) + { + Con_Printf("Current nice level is below the soft limit - cannot use niceness\n"); + return; + } + sys.nicepossible = true; + sys.isnice = false; +} +void Sys_MakeProcessNice (void) +{ + if(!sys.nicepossible) + return; + if(sys.isnice) + return; + Con_DPrintf("Process is becoming 'nice'...\n"); + if(setpriority(PRIO_PROCESS, 0, 19)) + Con_Printf(CON_ERROR "Failed to raise nice level to %d\n", 19); + sys.isnice = true; +} +void Sys_MakeProcessMean (void) +{ + if(!sys.nicepossible) + return; + if(!sys.isnice) return; - com_selffd = FS_SysOpenFD(Sys_FindExecutableName(), "rb", false); + Con_DPrintf("Process is becoming 'mean'...\n"); + if(setpriority(PRIO_PROCESS, 0, sys.nicelevel)) + Con_Printf(CON_ERROR "Failed to lower nice level to %d\n", sys.nicelevel); + sys.isnice = false; +} +#else +void Sys_InitProcessNice (void) +{ } +void Sys_MakeProcessNice (void) +{ +} +void Sys_MakeProcessMean (void) +{ +} +#endif