openmp/runtime/test/omp_my_sleep.h

   1 #ifndef MY_SLEEP_H
   2 #define MY_SLEEP_H
   3
   4 /*! Utility function to have a sleep function with better resolution and
   5  *  which only stops one thread. */
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <errno.h>
  10 #include <time.h>
  11
  12 #if defined(_WIN32)
  13 # include <windows.h>
  14 // Windows version of my_sleep() function
  15 static void my_sleep(double sleeptime) {
  16   DWORD ms = (DWORD) (sleeptime * 1000.0);
  17   Sleep(ms);
  18 }
  19
  20
  21 #else // _WIN32
  22
  23 // Unices version of my_sleep() function
  24 static void my_sleep(double sleeptime) {
  25   struct timespec ts;
  26   ts.tv_sec = (time_t)sleeptime;
  27   ts.tv_nsec = (long)((sleeptime - (double)ts.tv_sec) * 1E9);
  28   nanosleep(&ts, NULL);
  29 }
  30
  31 #endif // _WIN32
  32
  33 #endif // MY_SLEEP_H