-/* $Id$ */
-
/* xbt_os_time.c -- portable interface to time-related functions */
-/* Copyright (c) 2004-2008 The SimGrid team. All rights reserved. */
+/* Copyright (c) 2007-2019. 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 "src/internal_config.h"
#include "xbt/sysdep.h"
-#include "xbt/xbt_os_time.h" /* this module */
#include "xbt/log.h"
-#include "portable.h"
+#include "xbt/xbt_os_time.h" /* this module */
#include <math.h> /* floor */
+#include <sys/time.h>
+#include <time.h>
-
-#ifdef WIN32
+#ifdef _WIN32
#include <sys/timeb.h>
+#include <windows.h>
+#else
+#include <unistd.h>
#endif
-double xbt_os_time(void)
-{
-#ifdef HAVE_GETTIMEOFDAY
- struct timeval tv;
- gettimeofday(&tv, NULL);
-#elif defined(WIN32)
- struct timeval tv;
-# if defined(WIN32_WCE) || (_WIN32_WINNT < 0x0400)
- struct _timeb tm;
-
- _ftime(&tm);
+//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)
+#define CLOCK_PROCESS_CPUTIME_ID CLOCK_PROF
+#endif
- tv.tv_sec = tm.time;
- tv.tv_usec = tm.millitm * 1000;
+#if defined(__APPLE__) && defined(__MACH__)
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <mach/mach_init.h>
+#include <mach/mach_host.h>
+#include <mach/mach_port.h>
+#include <mach/mach_traps.h>
+#include <mach/task_info.h>
+#include <mach/thread_info.h>
+#include <mach/thread_act.h>
+#include <mach/vm_region.h>
+#include <mach/vm_map.h>
+#include <mach/task.h>
+#endif
-# else
- FILETIME ft;
+#ifdef _WIN32
+static void w32_time_to_timeval(struct timeval* tv, const FILETIME* ft)
+{
unsigned __int64 tm;
-
- GetSystemTimeAsFileTime(&ft);
- tm = (unsigned __int64) ft.dwHighDateTime << 32;
- tm |= ft.dwLowDateTime;
+ 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);
+}
- tv.tv_sec = (long) (tm / 1000000L);
- tv.tv_usec = (long) (tm % 1000000L);
-# endif /* windows version checker */
+static void w32_times_to_timeval(struct timeval* tv, const FILETIME* kernel_time, const FILETIME* user_time)
+{
+ unsigned __int64 ktm, utm;
+ ktm = (unsigned __int64)kernel_time->dwHighDateTime << 32;
+ ktm |= kernel_time->dwLowDateTime;
+ ktm /= 10;
+ utm = (unsigned __int64)user_time->dwHighDateTime << 32;
+ utm |= user_time->dwLowDateTime;
+ utm /= 10;
+ tv->tv_sec = (long)(ktm / 1000000L) + (long)(utm / 1000000L);
+ tv->tv_usec = (long)(ktm % 1000000L) + (long)(utm % 1000000L);
+}
+#endif
-#else /* not windows, no gettimeofday => poor resolution */
+double xbt_os_time(void)
+{
+#if HAVE_GETTIMEOFDAY
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+#elif defined(_WIN32)
+ struct timeval tv;
+ FILETIME ft;
+ GetSystemTimeAsFileTime(&ft);
+ w32_time_to_timeval(&tv, &ft);
+#else /* not windows, no gettimeofday => poor resolution */
return (double) (time(NULL));
-#endif /* HAVE_GETTIMEOFDAY? */
+#endif /* HAVE_GETTIMEOFDAY? */
return (double) (tv.tv_sec + tv.tv_usec / 1000000.0);
}
void xbt_os_sleep(double sec)
{
-#ifdef HAVE_USLEEP
- sleep(sec);
- (void) usleep((sec - floor(sec)) * 1000000);
-#elif WIN32
+#ifdef _WIN32
Sleep((floor(sec) * 1000) + ((sec - floor(sec)) * 1000));
-#else /* don't have usleep. Use select to sleep less than one second */
+#elif HAVE_NANOSLEEP
+ struct timespec ts;
+ ts.tv_sec = sec;
+ ts.tv_nsec = (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;
#endif
}
-/* TSC (tick-level) timers are said to be unreliable on SMP hosts and thus
- disabled in SDL source code */
-
+/* 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 {
-#ifdef HAVE_GETTIMEOFDAY
- struct timeval start, stop;
+#if HAVE_POSIX_GETTIME
+ struct timespec start;
+ struct timespec stop;
+ struct timespec elapse;
+#elif HAVE_GETTIMEOFDAY || defined(_WIN32)
+ struct timeval start;
+ struct timeval stop;
+ struct timeval elapse;
#else
- unsigned long int start, stop;
+ unsigned long int start;
+ unsigned long int stop;
+ unsigned long int elapse;
#endif
};
+size_t xbt_os_timer_size(void)
+{
+ return sizeof(struct s_xbt_os_timer);
+}
+
xbt_os_timer_t xbt_os_timer_new(void)
{
return xbt_new0(struct s_xbt_os_timer, 1);
free(timer);
}
-void xbt_os_timer_start(xbt_os_timer_t timer)
+double xbt_os_timer_elapsed(xbt_os_timer_t timer)
{
-#ifdef HAVE_GETTIMEOFDAY
+#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)
+ 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);
+#else
+ return (double) timer->stop - (double) timer->start + (double) timer->elapse;
+#endif
+}
+
+void xbt_os_walltimer_start(xbt_os_timer_t timer)
+{
+#if HAVE_POSIX_GETTIME && defined (_POSIX_THREAD_CPUTIME)
+ timer->elapse.tv_sec = 0;
+ timer->elapse.tv_nsec = 0;
+ clock_gettime(CLOCK_REALTIME, &(timer->start));
+#elif HAVE_GETTIMEOFDAY
+ 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;
+ GetSystemTimeAsFileTime(&ft);
+ w32_time_to_timeval(&timer->start, &ft);
#else
+ timer->elapse = 0;
timer->start = (unsigned long int) (time(NULL));
#endif
}
-void xbt_os_timer_stop(xbt_os_timer_t timer)
+void xbt_os_walltimer_resume(xbt_os_timer_t timer)
{
-#ifdef HAVE_GETTIMEOFDAY
+#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_REALTIME, &(timer->start));
+#elif HAVE_GETTIMEOFDAY
+ 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;
+ GetSystemTimeAsFileTime(&ft);
+ w32_time_to_timeval(&timer->start, &ft);
+#else
+ timer->elapse = timer->stop - timer->start;
+ timer->start = (unsigned long int) (time(NULL));
+#endif
+}
+
+void xbt_os_walltimer_stop(xbt_os_timer_t timer)
+{
+#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;
+ GetSystemTimeAsFileTime(&ft);
+ w32_time_to_timeval(&timer->stop, &ft);
#else
timer->stop = (unsigned long int) (time(NULL));
#endif
}
-double xbt_os_timer_elapsed(xbt_os_timer_t timer)
+void xbt_os_cputimer_start(xbt_os_timer_t timer)
{
-#ifdef HAVE_GETTIMEOFDAY
- return ((double) timer->stop.tv_sec) - ((double) timer->start.tv_sec) +
- ((((double) timer->stop.tv_usec) -
- ((double) timer->start.tv_usec)) / 1000000.0);
+#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));
+#elif HAVE_GETTIMEOFDAY //return time and not cputime in this case
+ 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);
+ 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 && 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));
+#elif HAVE_GETTIMEOFDAY
+ 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);
+ 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 && 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);
+ 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 && defined (_POSIX_THREAD_CPUTIME)
+ timer->elapse.tv_sec = 0;
+ timer->elapse.tv_nsec = 0;
+ clock_gettime(CLOCK_THREAD_CPUTIME_ID, &(timer->start));
+#elif HAVE_GETTIMEOFDAY && defined(__MACH__) && defined(__APPLE__)
+ timer->elapse.tv_sec = 0;
+ timer->elapse.tv_usec = 0;
+ mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
+ thread_basic_info_data_t thi_data;
+ thread_basic_info_t thi = &thi_data;
+ thread_info(mach_thread_self(), THREAD_BASIC_INFO, (thread_info_t)thi, &count);
+ timer->start.tv_usec = thi->system_time.microseconds + thi->user_time.microseconds;
+ timer->start.tv_sec = thi->system_time.seconds + thi->user_time.seconds;
+#elif HAVE_GETTIMEOFDAY //return time and not cputime in this case
+ 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);
+ 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 && 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));
+#elif HAVE_GETTIMEOFDAY && defined(__MACH__) && defined(__APPLE__)
+ timer->elapse.tv_sec += timer->stop.tv_sec - timer->start.tv_sec;
+ timer->elapse.tv_usec += timer->stop.tv_usec - timer->start.tv_usec;
+ mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
+ thread_basic_info_data_t thi_data;
+ thread_basic_info_t thi = &thi_data;
+ thread_info(mach_thread_self(), THREAD_BASIC_INFO, (thread_info_t)thi, &count);
+ timer->start.tv_usec = thi->system_time.microseconds + thi->user_time.microseconds;
+ timer->start.tv_sec = thi->system_time.seconds + thi->user_time.seconds;
+#elif HAVE_GETTIMEOFDAY
+ 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);
+ 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 && 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;
+ thread_basic_info_data_t thi_data;
+ thread_basic_info_t thi = &thi_data;
+ thread_info(mach_thread_self(), THREAD_BASIC_INFO, (thread_info_t)thi, &count);
+ timer->stop.tv_usec = thi->system_time.microseconds + thi->user_time.microseconds;
+ 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);
+ w32_times_to_timeval(&timer->stop, &kernelTime, &userTime);
#else
- return (double) timer->stop - (double) timer->start;
+# error The thread timers of SimGrid do not seem to work on your platform.
#endif
}
