db_semaphore.c 1.7 KB

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  1. /* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
  2. /* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */
  3. /* Copyright (C) 2014 Stony Brook University
  4. This file is part of Graphene Library OS.
  5. Graphene Library OS is free software: you can redistribute it and/or
  6. modify it under the terms of the GNU Lesser General Public License
  7. as published by the Free Software Foundation, either version 3 of the
  8. License, or (at your option) any later version.
  9. Graphene Library OS 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
  12. GNU Lesser General Public License for more details.
  13. You should have received a copy of the GNU Lesser General Public License
  14. along with this program. If not, see <http://www.gnu.org/licenses/>. */
  15. /*
  16. * db_semaphore.c
  17. *
  18. * This file contains APIs that provides operations of semaphores.
  19. */
  20. #include "pal_defs.h"
  21. #include "pal.h"
  22. #include "pal_internal.h"
  23. #include "pal_error.h"
  24. #include "api.h"
  25. int
  26. _DkSemaphoreCreate (PAL_HANDLE handle, int initialCount, int maxCount)
  27. {
  28. return -PAL_ERROR_NOTIMPLEMENTED;
  29. }
  30. void _DkSemaphoreDestroy (PAL_HANDLE semaphoreHandle)
  31. {
  32. /* need to be implemented */
  33. }
  34. int _DkSemaphoreAcquire (PAL_HANDLE sem, int count)
  35. {
  36. return -PAL_ERROR_NOTIMPLEMENTED;
  37. }
  38. int _DkSemaphoreAcquireTimeout (PAL_HANDLE sem, int count, int timeout)
  39. {
  40. return -PAL_ERROR_NOTIMPLEMENTED;
  41. }
  42. void _DkSemaphoreRelease (PAL_HANDLE sem, int count)
  43. {
  44. /* need to be implemented */
  45. }
  46. int _DkSemaphoreGetCurrentCount (PAL_HANDLE sem)
  47. {
  48. return -PAL_ERROR_NOTIMPLEMENTED;
  49. }