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gbsleep.cc 1.4KB

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  1. /*
  2. OS abstraction to sleep a given number of milliseconds.
  3. Copyright (C) 2006 Robert Lipe, robertlipe+source@gpsbabel.org
  4. This program is free software; you can redistribute it and/or modify
  5. it under the terms of the GNU General Public License as published by
  6. the Free Software Foundation; either version 2 of the License, or
  7. (at your option) any later version.
  8. This program is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. GNU General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with this program; if not, write to the Free Software
  14. Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111 USA
  15. */
  16. #if HAVE_CONFIG_H
  17. #include "config.h"
  18. #endif
  19. #if __WIN32__
  20. #include <windows.h>
  21. void
  22. gb_sleep(unsigned long microseconds)
  23. {
  24. Sleep(microseconds/1000 + 1);
  25. }
  26. #elif defined HAVE_NANOSLEEP
  27. #include <time.h>
  28. void
  29. gb_sleep(unsigned long microseconds)
  30. {
  31. struct timespec req;
  32. req.tv_sec = microseconds / 1000000;
  33. req.tv_nsec = (microseconds * 1000) % 1000000000;
  34. nanosleep(&req, NULL);
  35. }
  36. #elif defined HAVE_SLEEP
  37. /* Amazingly underachieving, but probably "good enough" */
  38. #include <unistd.h>
  39. void
  40. gb_sleep(unsigned long microseconds)
  41. {
  42. sleep(microseconds / 1000000);
  43. }
  44. #endif