+#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
# include <windows.h>
# include <mmsystem.h> // timeGetTime
+# include <time.h> // localtime
+#ifdef _MSC_VER
+#pragma comment(lib, "winmm.lib")
+#endif
#else
+# ifdef __FreeBSD__
+# include <sys/sysctl.h>
+# endif
# include <unistd.h>
# include <fcntl.h>
# include <sys/time.h>
}
-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
}
===============================================================================
*/
-qboolean Sys_LoadLibrary (const char** dllnames, dllhandle_t* handle, const dllfunction_t *fcts)
+static qbool Sys_LoadDependencyFunctions(dllhandle_t dllhandle, const dllfunction_t *fcts, qbool complain, qbool has_next)
+{
+ const dllfunction_t *func;
+ if(dllhandle)
+ {
+ for (func = fcts; func && func->name != NULL; func++)
+ if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
+ {
+ if(complain)
+ {
+ Con_DPrintf (" - missing function \"%s\" - broken library!", func->name);
+ if(has_next)
+ Con_DPrintf("\nContinuing with");
+ }
+ goto notfound;
+ }
+ return true;
+
+ notfound:
+ for (func = fcts; func && func->name != NULL; func++)
+ *func->funcvariable = NULL;
+ }
+ return false;
+}
+
+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;
#ifndef WIN32
#ifdef PREFER_PRELOAD
dllhandle = dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL);
- if(dllhandle)
+ if(Sys_LoadDependencyFunctions(dllhandle, fcts, false, false))
{
- for (func = fcts; func && func->name != NULL; func++)
- if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
- {
- dlclose(dllhandle);
- goto notfound;
- }
Con_DPrintf ("All of %s's functions were already linked in! Not loading dynamically...\n", dllnames[0]);
*handle = dllhandle;
return true;
}
+ else
+ Sys_FreeLibrary(&dllhandle);
notfound:
#endif
#endif
{
Con_DPrintf (" \"%s\"", dllnames[i]);
#ifdef WIN32
- dllhandle = LoadLibrary (dllnames[i]);
-#else
- dllhandle = dlopen (dllnames[i], RTLD_LAZY | RTLD_GLOBAL);
+# ifndef DONT_USE_SETDLLDIRECTORY
+# ifdef _WIN64
+ SetDllDirectory("bin64");
+# else
+ SetDllDirectory("bin32");
+# endif
+# endif
#endif
- if (dllhandle)
- break;
+ 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++)
{
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 (dllhandle)
- break;
+
+ if(Sys_LoadLibrary(temp, &dllhandle))
+ {
+ if (Sys_LoadDependencyFunctions(dllhandle, fcts, true, (dllnames[i+1] != NULL) || (strrchr(sys.argv[0], '/'))))
+ break;
+ else
+ Sys_FreeLibrary (&dllhandle);
+ }
}
}
}
Con_DPrintf(" - loaded.\n");
-
- // Get the function adresses
- for (func = fcts; func && func->name != NULL; func++)
- if (!(*func->funcvariable = (void *) Sys_GetProcAddress (dllhandle, func->name)))
- {
- Con_DPrintf ("Missing function \"%s\" - broken library!\n", func->name);
- Sys_UnloadLibrary (&dllhandle);
- return false;
- }
+ Con_Printf("Loaded library \"%s\"\n", dllnames[i]);
*handle = dllhandle;
return true;
#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)
# 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
-#ifdef FD_SET
-# define HAVE_SELECT 1
+#ifndef WIN32
+// on Win32, select() cannot be used with all three FD list args being NULL according to MSDN
+// (so much for POSIX...)
+# ifdef FD_SET
+# define HAVE_SELECT 1
+# endif
#endif
#ifndef WIN32
# define HAVE_USLEEP 1
#endif
-cvar_t sys_debugsleep = {0, "sys_debugsleep", "0", "write requested and attained sleep times to standard output, to be used with gnuplot"};
-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."};
-cvar_t sys_usesdlgetticks = {CVAR_SAVE, "sys_usesdlgetticks", "0", "use SDL_GetTicks() timer (less accurate, for debugging)"};
-cvar_t sys_usesdldelay = {CVAR_SAVE, "sys_usesdldelay", "0", "use SDL_Delay() (less accurate, for debugging)"};
+// 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 = {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
-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
-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<sys.argc ; i++)
+ {
+ if (!sys.argv[i])
+ continue; // NEXTSTEP sometimes clears appkit vars.
+ if (!strcmp (parm,sys.argv[i]))
+ return i;
+ }
+
+ return 0;
+}
void Sys_Init_Commands (void)
{
Cvar_RegisterVariable(&sys_debugsleep);
Cvar_RegisterVariable(&sys_usenoclockbutbenchmark);
+ Cvar_RegisterVariable(&sys_libdir);
#if HAVE_TIMEGETTIME || HAVE_QUERYPERFORMANCECOUNTER || HAVE_CLOCKGETTIME || HAVE_GETTIMEOFDAY
if(sys_supportsdlgetticks)
{
#endif
}
-double Sys_DoubleTime(void)
+double Sys_DirtyTime(void)
{
- static int first = true;
- static double oldtime = 0.0, curtime = 0.0;
- double newtime;
+ // first all the OPTIONAL timers
+
+ // benchmark timer (fake clock)
if(sys_usenoclockbutbenchmark.integer)
{
+ double old_benchmark_time = benchmark_time;
benchmark_time += 1;
- return ((double) benchmark_time) / 1e6;
+ if(benchmark_time == old_benchmark_time)
+ Sys_Error("sys_usenoclockbutbenchmark cannot run any longer, sorry");
+ return benchmark_time * 0.000001;
}
-
- // first all the OPTIONAL timers
-
#if HAVE_QUERYPERFORMANCECOUNTER
- else if (sys_usequeryperformancecounter.integer)
+ if (sys_usequeryperformancecounter.integer)
{
- // LordHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
+ // LadyHavoc: note to people modifying this code, DWORD is specifically defined as an unsigned 32bit number, therefore the 65536.0 * 65536.0 is fine.
// QueryPerformanceCounter
// platform:
// Windows 95/98/ME/NT/2000/XP
LARGE_INTEGER PerformanceFreq;
LARGE_INTEGER PerformanceCount;
- if (!QueryPerformanceFrequency (&PerformanceFreq))
+ if (QueryPerformanceFrequency (&PerformanceFreq))
+ {
+ QueryPerformanceCounter (&PerformanceCount);
+
+ timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
+ return ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale;
+ }
+ else
{
- Con_Printf ("No hardware timer available\n");
- // fall back to timeGetTime
+ Con_Printf("No hardware timer available\n");
+ // fall back to other clock sources
Cvar_SetValueQuick(&sys_usequeryperformancecounter, false);
- return Sys_DoubleTime();
}
- QueryPerformanceCounter (&PerformanceCount);
-
- #ifdef __BORLANDC__
- timescale = 1.0 / ((double) PerformanceFreq.u.LowPart + (double) PerformanceFreq.u.HighPart * 65536.0 * 65536.0);
- newtime = ((double) PerformanceCount.u.LowPart + (double) PerformanceCount.u.HighPart * 65536.0 * 65536.0) * timescale;
- #else
- timescale = 1.0 / ((double) PerformanceFreq.LowPart + (double) PerformanceFreq.HighPart * 65536.0 * 65536.0);
- newtime = ((double) PerformanceCount.LowPart + (double) PerformanceCount.HighPart * 65536.0 * 65536.0) * timescale;
- #endif
}
#endif
#if HAVE_CLOCKGETTIME
- else if (sys_useclockgettime.integer)
+ if (sys_useclockgettime.integer)
{
struct timespec ts;
# ifdef CLOCK_MONOTONIC
// sunos
clock_gettime(CLOCK_HIGHRES, &ts);
# endif
- newtime = (double) ts.tv_sec + ts.tv_nsec / 1000000000.0;
+ return (double) ts.tv_sec + ts.tv_nsec / 1000000000.0;
}
#endif
// now all the FALLBACK timers
- else if(sys_supportsdlgetticks && sys_usesdlgetticks.integer)
- {
- newtime = (double) Sys_SDL_GetTicks() / 1000.0;
- }
+ if(sys_supportsdlgetticks && sys_usesdlgetticks.integer)
+ return (double) Sys_SDL_GetTicks() / 1000.0;
#if HAVE_GETTIMEOFDAY
- else
{
struct timeval tp;
gettimeofday(&tp, NULL);
- newtime = (double) tp.tv_sec + tp.tv_usec / 1000000.0;
+ return (double) tp.tv_sec + tp.tv_usec / 1000000.0;
}
#elif HAVE_TIMEGETTIME
- else
{
static int firsttimegettime = true;
// timeGetTime
// make sure the timer is high precision, otherwise different versions of windows have varying accuracy
if (firsttimegettime)
{
- timeBeginPeriod (1);
+ timeBeginPeriod(1);
firsttimegettime = false;
}
- newtime = (double) timeGetTime () / 1000.0;
+ return (double) timeGetTime() / 1000.0;
}
#else
// fallback for using the SDL timer if no other timer is available
- else
- {
- newtime = (double) Sys_SDL_GetTicks() / 1000.0;
- // this calls Sys_Error() if not linking against SDL
- }
+ // this calls Sys_Error() if not linking against SDL
+ return (double) Sys_SDL_GetTicks() / 1000.0;
#endif
-
- if (first)
- {
- first = false;
- oldtime = newtime;
- }
-
- if (newtime < oldtime)
- {
- // warn if it's significant
- if (newtime - oldtime < -0.01)
- Con_Printf("Sys_DoubleTime: time stepped backwards (went from %f to %f, difference %f)\n", oldtime, newtime, newtime - oldtime);
- }
- else if (newtime > 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)
{
- double t;
+ 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)
{
#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));
+ }
+}
+
+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;
+ if(p && name)
+ {
+ while((q = strchr(p, ':')))
+ {
+ dpsnprintf(buf, bufsize, "%.*s%c%s", (int)(q-p), p, namesep, name);
+ if(FS_SysFileExists(buf))
+ return buf;
+ p = q + 1;
+ }
+ if(!q) // none found - try the last item
+ {
+ dpsnprintf(buf, bufsize, "%s%c%s", p, namesep, name);
+ if(FS_SysFileExists(buf))
+ return buf;
+ }
+ }
+ return name;
+}
+#endif
+
+static const char *Sys_FindExecutableName(void)
+{
+#if defined(WIN32)
+ return sys.argv[0];
+#else
+ static char exenamebuf[MAX_OSPATH+1];
+ ssize_t n = -1;
+#if defined(__FreeBSD__)
+ 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
+ if(n > 0 && (size_t)(n) < sizeof(exenamebuf))
+ {
+ exenamebuf[n] = 0;
+ return exenamebuf;
}
+ if(strchr(sys.argv[0], '/'))
+ return sys.argv[0]; // possibly a relative path
+ else
+ return Sys_FindInPATH(sys.argv[0], '/', getenv("PATH"), ':', exenamebuf, sizeof(exenamebuf));
+#endif
}
+
+void Sys_ProvideSelfFD(void)
+{
+ 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 <sys/resource.h>
+#include <errno.h>
+
+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;
+ 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
projects / xonotic / darkplaces.git / blobdiff