/* xbt_os_time.c -- portable interface to time-related functions */
-/* Copyright (c) 2007-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include <sys/time.h>
#include <time.h>
-#ifdef _WIN32
-#include <sys/timeb.h>
-#include <windows.h>
-#endif
+#include <unistd.h>
//Freebsd doesn't provide this clock_gettime flag yet, because it was added too recently (after 1993)
#if defined (CLOCK_PROF) && ! defined (CLOCK_PROCESS_CPUTIME_ID)
#if HAVE_GETTIMEOFDAY
struct timeval tv;
gettimeofday(&tv, NULL);
-#elif defined(_WIN32)
- struct timeval tv;
- FILETIME ft;
- unsigned __int64 tm;
-
- GetSystemTimeAsFileTime(&ft);
- tm = (unsigned __int64) ft.dwHighDateTime << 32;
- tm |= ft.dwLowDateTime;
- tm /= 10;
- tm -= 11644473600000000ULL;
-
- tv.tv_sec = (long) (tm / 1000000L);
- tv.tv_usec = (long) (tm % 1000000L);
-#else /* not windows, no gettimeofday => poor resolution */
+ return (double)tv.tv_sec + (double)tv.tv_usec / 1e6;
+#else /* no gettimeofday => poor resolution */
return (double) (time(NULL));
#endif /* HAVE_GETTIMEOFDAY? */
-
- return (double) (tv.tv_sec + tv.tv_usec / 1000000.0);
}
void xbt_os_sleep(double sec)
{
-#ifdef _WIN32
- Sleep((floor(sec) * 1000) + ((sec - floor(sec)) * 1000));
-
-#elif HAVE_NANOSLEEP
+#if HAVE_NANOSLEEP
struct timespec ts;
- ts.tv_sec = sec;
- ts.tv_nsec = (sec - floor(sec)) * 1e9;
+ ts.tv_sec = (time_t)sec;
+ ts.tv_nsec = (long)((sec - floor(sec)) * 1e9);
nanosleep (&ts, NULL);
#else /* don't have nanosleep. Use select to sleep less than one second */
struct timeval timeout;
- timeout.tv_sec = (unsigned long) (sec);
- timeout.tv_usec = (sec - floor(sec)) * 1000000;
+ timeout.tv_sec = (long)sec;
+ timeout.tv_usec = (long)(sec - floor(sec)) * 1e6;
select(0, NULL, NULL, NULL, &timeout);
#endif
/* TSC (tick-level) timers are said to be unreliable on SMP hosts and thus disabled in SDL source code */
-/* \defgroup XBT_sysdep All system dependency
- * \brief This section describes many macros/functions that can serve as an OS abstraction.
+/* @defgroup XBT_sysdep All system dependency
+ * @brief This section describes many macros/functions that can serve as an OS abstraction.
*/
struct s_xbt_os_timer {
-#if HAVE_POSIX_GETTIME
- struct timespec start, stop, elapse;
-#elif HAVE_GETTIMEOFDAY || defined(_WIN32)
- struct timeval start, stop, elapse;
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
+ struct timespec start;
+ struct timespec stop;
+ struct timespec elapse;
+#elif HAVE_GETTIMEOFDAY
+ struct timeval start;
+ struct timeval stop;
+ struct timeval elapse;
#else
- unsigned long int start, stop, elapse;
+ unsigned long int start;
+ unsigned long int stop;
+ unsigned long int elapse;
#endif
};
-size_t xbt_os_timer_size(void){
+size_t xbt_os_timer_size(void)
+{
return sizeof(struct s_xbt_os_timer);
}
free(timer);
}
-double xbt_os_timer_elapsed(xbt_os_timer_t timer)
+double xbt_os_timer_elapsed(const_xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
return ((double) timer->stop.tv_sec) - ((double) timer->start.tv_sec) + ((double) timer->elapse.tv_sec ) +
((((double) timer->stop.tv_nsec) - ((double) timer->start.tv_nsec) + ((double) timer->elapse.tv_nsec )) / 1e9);
-#elif HAVE_GETTIMEOFDAY || defined(_WIN32)
+#elif HAVE_GETTIMEOFDAY
return ((double) timer->stop.tv_sec) - ((double) timer->start.tv_sec) + ((double) timer->elapse.tv_sec ) +
((((double) timer->stop.tv_usec) - ((double) timer->start.tv_usec) + ((double) timer->elapse.tv_usec )) /
1000000.0);
void xbt_os_walltimer_start(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
timer->elapse.tv_sec = 0;
timer->elapse.tv_nsec = 0;
clock_gettime(CLOCK_REALTIME, &(timer->start));
timer->elapse.tv_sec = 0;
timer->elapse.tv_usec = 0;
gettimeofday(&(timer->start), NULL);
-#elif defined(_WIN32)
- timer->elapse.tv_sec = 0;
- timer->elapse.tv_usec = 0;
- FILETIME ft;
- unsigned __int64 tm;
-
- GetSystemTimeAsFileTime(&ft);
- tm = (unsigned __int64) ft.dwHighDateTime << 32;
- tm |= ft.dwLowDateTime;
- tm /= 10;
- tm -= 11644473600000000ULL;
-
- timer->start.tv_sec = (long) (tm / 1000000L);
- timer->start.tv_usec = (long) (tm % 1000000L);
#else
timer->elapse = 0;
timer->start = (unsigned long int) (time(NULL));
void xbt_os_walltimer_resume(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
timer->elapse.tv_nsec += timer->stop.tv_nsec - timer->start.tv_nsec;
timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
gettimeofday(&(timer->start), NULL);
-#elif defined(_WIN32)
- timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
- timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
- FILETIME ft;
- unsigned __int64 tm;
-
- GetSystemTimeAsFileTime(&ft);
- tm = (unsigned __int64) ft.dwHighDateTime << 32;
- tm |= ft.dwLowDateTime;
- tm /= 10;
- tm -= 11644473600000000ULL;
-
- timer->start.tv_sec = (long) (tm / 1000000L);
- timer->start.tv_usec = (long) (tm % 1000000L);
#else
timer->elapse = timer->stop - timer->start;
timer->start = (unsigned long int) (time(NULL));
void xbt_os_walltimer_stop(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
clock_gettime(CLOCK_REALTIME, &(timer->stop));
#elif HAVE_GETTIMEOFDAY
gettimeofday(&(timer->stop), NULL);
-#elif defined(_WIN32)
- FILETIME ft;
- unsigned __int64 tm;
-
- GetSystemTimeAsFileTime(&ft);
- tm = (unsigned __int64) ft.dwHighDateTime << 32;
- tm |= ft.dwLowDateTime;
- tm /= 10;
- tm -= 11644473600000000ULL;
-
- timer->stop.tv_sec = (long) (tm / 1000000L);
- timer->stop.tv_usec = (long) (tm % 1000000L);
#else
timer->stop = (unsigned long int) (time(NULL));
#endif
void xbt_os_cputimer_start(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
timer->elapse.tv_sec = 0;
timer->elapse.tv_nsec = 0;
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &(timer->start));
timer->elapse.tv_sec = 0;
timer->elapse.tv_usec = 0;
gettimeofday(&(timer->start), NULL);
-#elif defined(_WIN32)
- timer->elapse.tv_sec = 0;
- timer->elapse.tv_usec = 0;
- HANDLE h = GetCurrentProcess();
- FILETIME creationTime, exitTime, kernelTime, userTime;
- GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
- unsigned __int64 ktm, utm;
- ktm = (unsigned __int64) kernelTime.dwHighDateTime << 32;
- ktm |= kernelTime.dwLowDateTime;
- ktm /= 10;
- utm = (unsigned __int64) userTime.dwHighDateTime << 32;
- utm |= userTime.dwLowDateTime;
- utm /= 10;
- timer->start.tv_sec = (long) (ktm / 1000000L) + (long) (utm / 1000000L);
- timer->start.tv_usec = (long) (ktm % 1000000L) + (long) (utm % 1000000L);
+#else
+# error The cpu timers of SimGrid do not seem to work on your platform.
#endif
}
void xbt_os_cputimer_resume(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
timer->elapse.tv_nsec += timer->stop.tv_nsec - timer->start.tv_nsec;
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &(timer->start));
timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
gettimeofday(&(timer->start), NULL);
-#elif defined(_WIN32)
- timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
- timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
- HANDLE h = GetCurrentProcess();
- FILETIME creationTime, exitTime, kernelTime, userTime;
- GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
- unsigned __int64 ktm, utm;
- ktm = (unsigned __int64) kernelTime.dwHighDateTime << 32;
- ktm |= kernelTime.dwLowDateTime;
- ktm /= 10;
- utm = (unsigned __int64) userTime.dwHighDateTime << 32;
- utm |= userTime.dwLowDateTime;
- utm /= 10;
- timer->start.tv_sec = (long) (ktm / 1000000L) + (long) (utm / 1000000L);
- timer->start.tv_usec = (long) (ktm % 1000000L) + (long) (utm % 1000000L);
+#else
+# error The cpu timers of SimGrid do not seem to work on your platform.
#endif
}
void xbt_os_cputimer_stop(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &(timer->stop));
#elif HAVE_GETTIMEOFDAY
gettimeofday(&(timer->stop), NULL);
-#elif defined(_WIN32)
- HANDLE h = GetCurrentProcess();
- FILETIME creationTime, exitTime, kernelTime, userTime;
- GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
- unsigned __int64 ktm, utm;
- ktm = (unsigned __int64) kernelTime.dwHighDateTime << 32;
- ktm |= kernelTime.dwLowDateTime;
- ktm /= 10;
- utm = (unsigned __int64) userTime.dwHighDateTime << 32;
- utm |= userTime.dwLowDateTime;
- utm /= 10;
- timer->stop.tv_sec = (long) (ktm / 1000000L) + (long) (utm / 1000000L);
- timer->stop.tv_usec = (long) (ktm % 1000000L) + (long) (utm % 1000000L);
+#else
+# error The cpu timers of SimGrid do not seem to work on your platform.
#endif
}
void xbt_os_threadtimer_start(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
timer->elapse.tv_sec = 0;
timer->elapse.tv_nsec = 0;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &(timer->start));
timer->elapse.tv_sec = 0;
timer->elapse.tv_usec = 0;
gettimeofday(&(timer->start), NULL);
-#elif defined(_WIN32)
- HANDLE h = GetCurrentThread();
- FILETIME creationTime, exitTime, kernelTime, userTime;
- GetThreadTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
- unsigned __int64 ktm, utm;
- ktm = (unsigned __int64) kernelTime.dwHighDateTime << 32;
- ktm |= kernelTime.dwLowDateTime;
- ktm /= 10;
- utm = (unsigned __int64) userTime.dwHighDateTime << 32;
- utm |= userTime.dwLowDateTime;
- utm /= 10;
- timer->start.tv_sec = (long) (ktm / 1000000L) + (long) (utm / 1000000L);
- timer->start.tv_usec = (long) (ktm % 1000000L) + (long) (utm % 1000000L);
+#else
+# error The thread timers of SimGrid do not seem to work on your platform.
#endif
}
void xbt_os_threadtimer_resume(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
timer->elapse.tv_nsec += timer->stop.tv_nsec - timer->start.tv_nsec;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &(timer->start));
timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
gettimeofday(&(timer->start), NULL);
-#elif defined(_WIN32)
- timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
- timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
- HANDLE h = GetCurrentThread();
- FILETIME creationTime, exitTime, kernelTime, userTime;
- GetThreadTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
- unsigned __int64 ktm, utm;
- ktm = (unsigned __int64) kernelTime.dwHighDateTime << 32;
- ktm |= kernelTime.dwLowDateTime;
- ktm /= 10;
- utm = (unsigned __int64) userTime.dwHighDateTime << 32;
- utm |= userTime.dwLowDateTime;
- utm /= 10;
- timer->start.tv_sec = (long) (ktm / 1000000L) + (long) (utm / 1000000L);
- timer->start.tv_usec = (long) (ktm % 1000000L) + (long) (utm % 1000000L);
+#else
+# error The thread timers of SimGrid do not seem to work on your platform.
#endif
}
void xbt_os_threadtimer_stop(xbt_os_timer_t timer)
{
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &(timer->stop));
#elif HAVE_GETTIMEOFDAY && defined(__MACH__) && defined(__APPLE__)
mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
timer->stop.tv_sec = thi->system_time.seconds + thi->user_time.seconds;
#elif HAVE_GETTIMEOFDAY //if nothing else is available, return just time
gettimeofday(&(timer->stop), NULL);
-#elif defined(_WIN32)
- HANDLE h = GetCurrentThread();
- FILETIME creationTime, exitTime, kernelTime, userTime;
- GetThreadTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
- unsigned __int64 ktm, utm;
- ktm = (unsigned __int64) kernelTime.dwHighDateTime << 32;
- ktm |= kernelTime.dwLowDateTime;
- ktm /= 10;
- utm = (unsigned __int64) userTime.dwHighDateTime << 32;
- utm |= userTime.dwLowDateTime;
- utm /= 10;
- timer->stop.tv_sec = (long) (ktm / 1000000L) + (long) (utm / 1000000L);
- timer->stop.tv_usec = (long) (ktm % 1000000L) + (long) (utm % 1000000L);
+#else
+# error The thread timers of SimGrid do not seem to work on your platform.
#endif
}
