Update copyright lines.

[simgrid.git] / src / xbt / xbt_os_time.c

diff --git a/src/xbt/xbt_os_time.c b/src/xbt/xbt_os_time.c
index 2586410..8cccbf0 100644 (file)
--- 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) 2007-2018. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2007-2021. 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. */
@@ -16,6 +16,8 @@
 #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)
@@ -78,7 +80,7 @@ double xbt_os_time(void)
   return (double) (time(NULL));
 #endif                          /* HAVE_GETTIMEOFDAY? */
 
-  return (double) (tv.tv_sec + tv.tv_usec / 1000000.0);
+  return (double)tv.tv_sec + (double)tv.tv_usec / 1e6;
 }
 
 void xbt_os_sleep(double sec)
@@ -89,14 +91,14 @@ void xbt_os_sleep(double sec)
 
 #elif 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
@@ -108,7 +110,7 @@ void xbt_os_sleep(double sec)
  * @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;
@@ -138,9 +140,9 @@ 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)
@@ -154,7 +156,7 @@ 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));
@@ -176,7 +178,7 @@ 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;
@@ -199,7 +201,7 @@ 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);
@@ -214,7 +216,7 @@ 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));
@@ -229,12 +231,14 @@ void xbt_os_cputimer_start(xbt_os_timer_t timer)
   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));
@@ -249,12 +253,14 @@ void xbt_os_cputimer_resume(xbt_os_timer_t timer)
   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);
@@ -263,12 +269,14 @@ void xbt_os_cputimer_stop(xbt_os_timer_t timer)
   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));
@@ -290,12 +298,14 @@ void xbt_os_threadtimer_start(xbt_os_timer_t timer)
   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));
@@ -319,12 +329,14 @@ void xbt_os_threadtimer_resume(xbt_os_timer_t timer)
   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;
@@ -340,5 +352,7 @@ void xbt_os_threadtimer_stop(xbt_os_timer_t timer)
   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
 }