/* xbt_os_time.c -- portable interface to time-related functions */
-/* Copyright (c) 2007-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2020. 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. */
#ifdef _WIN32
#include <sys/timeb.h>
#include <windows.h>
+#else
+#include <unistd.h>
#endif
//Freebsd doesn't provide this clock_gettime flag yet, because it was added too recently (after 1993)
* @brief This section describes many macros/functions that can serve as an OS abstraction.
*/
struct s_xbt_os_timer {
-#if HAVE_POSIX_GETTIME
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
struct timespec start;
struct timespec stop;
struct timespec elapse;
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)
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));
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;
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);
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));
FILETIME creationTime, exitTime, kernelTime, userTime;
GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
w32_times_to_timeval(&timer->start, &kernelTime, &userTime);
+#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));
FILETIME creationTime, exitTime, kernelTime, userTime;
GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
w32_times_to_timeval(&timer->start, &kernelTime, &userTime);
+#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);
FILETIME creationTime, exitTime, kernelTime, userTime;
GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
w32_times_to_timeval(&timer->stop, &kernelTime, &userTime);
+#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));
FILETIME creationTime, exitTime, kernelTime, userTime;
GetThreadTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
w32_times_to_timeval(&timer->start, &kernelTime, &userTime);
+#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));
FILETIME creationTime, exitTime, kernelTime, userTime;
GetThreadTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
w32_times_to_timeval(&timer->start, &kernelTime, &userTime);
+#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;
FILETIME creationTime, exitTime, kernelTime, userTime;
GetThreadTimes(h, &creationTime, &exitTime, &kernelTime, &userTime);
w32_times_to_timeval(&timer->stop, &kernelTime, &userTime);
+#else
+# error The thread timers of SimGrid do not seem to work on your platform.
#endif
}