X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7410b72db09489e8b9d3ee3cb087f35882397d93..3f9b311ec56db95ec539001a860ae3c838c48312:/src/xbt/xbt_os_time.c diff --git a/src/xbt/xbt_os_time.c b/src/xbt/xbt_os_time.c index fa6fc2b437..f0d5401389 100644 --- a/src/xbt/xbt_os_time.c +++ b/src/xbt/xbt_os_time.c @@ -1,6 +1,6 @@ /* 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. */ @@ -13,10 +13,7 @@ #include #include -#ifdef _WIN32 -#include -#include -#endif +#include //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) @@ -43,43 +40,26 @@ double xbt_os_time(void) #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 @@ -87,20 +67,27 @@ void xbt_os_sleep(double sec) /* 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); } @@ -114,12 +101,12 @@ void xbt_os_timer_free(xbt_os_timer_t 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); @@ -130,7 +117,7 @@ double xbt_os_timer_elapsed(xbt_os_timer_t timer) 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)); @@ -138,20 +125,6 @@ void xbt_os_walltimer_start(xbt_os_timer_t timer) 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)); @@ -160,7 +133,7 @@ void xbt_os_walltimer_start(xbt_os_timer_t timer) 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; @@ -169,20 +142,6 @@ void xbt_os_walltimer_resume(xbt_os_timer_t timer) 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)); @@ -191,22 +150,10 @@ void xbt_os_walltimer_resume(xbt_os_timer_t timer) 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 @@ -214,7 +161,7 @@ void xbt_os_walltimer_stop(xbt_os_timer_t timer) 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)); @@ -222,27 +169,14 @@ void xbt_os_cputimer_start(xbt_os_timer_t timer) 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)); @@ -250,49 +184,25 @@ void xbt_os_cputimer_resume(xbt_os_timer_t timer) 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)); @@ -309,25 +219,14 @@ void xbt_os_threadtimer_start(xbt_os_timer_t timer) 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)); @@ -344,27 +243,14 @@ void xbt_os_threadtimer_resume(xbt_os_timer_t timer) 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; @@ -375,18 +261,7 @@ void xbt_os_threadtimer_stop(xbt_os_timer_t timer) 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 }