pthread_mutex_destroy.c 1.3 KB

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  1. /* Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library 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 GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #include <errno.h>
  17. #include "pthreadP.h"
  18. int
  19. __pthread_mutex_destroy (
  20. pthread_mutex_t *mutex)
  21. {
  22. if ((mutex->__data.__kind & PTHREAD_MUTEX_ROBUST_NORMAL_NP) == 0
  23. && mutex->__data.__nusers != 0)
  24. return EBUSY;
  25. /* Set to an invalid value. */
  26. mutex->__data.__kind = -1;
  27. return 0;
  28. }
  29. strong_alias (__pthread_mutex_destroy, pthread_mutex_destroy)
  30. INTDEF(__pthread_mutex_destroy)