X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/dff9e15c44ab6340d27215957c56fa72fad246a2..5a70c089b84089f74d1fcaefecaa4bdbee1deae5:/src/xbt/xbt_os_time.c diff --git a/src/xbt/xbt_os_time.c b/src/xbt/xbt_os_time.c index ebd1f8bff7..967ad5b206 100644 --- a/src/xbt/xbt_os_time.c +++ b/src/xbt/xbt_os_time.c @@ -1,72 +1,102 @@ -/* $Id$ */ - /* 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 /* floor */ +#include +#include - -#ifdef WIN32 +#ifdef _WIN32 #include +#include +#else +#include #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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#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; @@ -74,24 +104,32 @@ void xbt_os_sleep(double sec) #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); @@ -102,31 +140,219 @@ void xbt_os_timer_free(xbt_os_timer_t timer) 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 }