hp-timing.h 1.6 KB

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  1. /* High precision, low overhead timing functions. Generic version.
  2. Copyright (C) 1998-2019 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
  5. The GNU C Library is free software; you can redistribute it and/or
  6. modify it under the terms of the GNU Lesser General Public
  7. License as published by the Free Software Foundation; either
  8. version 2.1 of the License, or (at your option) any later version.
  9. The GNU C Library is distributed in the hope that it will be useful,
  10. but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. Lesser General Public License for more details.
  13. You should have received a copy of the GNU Lesser General Public
  14. License along with the GNU C Library; if not, see
  15. <http://www.gnu.org/licenses/>. */
  16. #ifndef _HP_TIMING_H
  17. #define _HP_TIMING_H 1
  18. /* There are no generic definitions for the times. We could write something
  19. using the `gettimeofday' system call where available but the overhead of
  20. the system call might be too high. */
  21. /* Provide dummy definitions. */
  22. #define HP_TIMING_AVAIL (0)
  23. #define HP_SMALL_TIMING_AVAIL (0)
  24. #define HP_TIMING_INLINE (0)
  25. typedef int hp_timing_t;
  26. #define HP_TIMING_NOW(var)
  27. #define HP_TIMING_DIFF(Diff, Start, End)
  28. #define HP_TIMING_ACCUM_NT(Sum, Diff)
  29. #define HP_TIMING_PRINT(Buf, Len, Val)
  30. /* Since this implementation is not available we tell the user about it. */
  31. #define HP_TIMING_NONAVAIL 1
  32. #endif /* hp-timing.h */