pthread_attr_init.c 1.6 KB

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  1. /* Copyright (C) 2002, 2003, 2004, 2007 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, see
  14. <http://www.gnu.org/licenses/>. */
  15. #include <assert.h>
  16. #include <errno.h>
  17. #include <string.h>
  18. #include <unistd.h>
  19. #include "pthreadP.h"
  20. struct pthread_attr *__attr_list;
  21. int __attr_list_lock = LLL_LOCK_INITIALIZER;
  22. int
  23. attribute_protected
  24. __pthread_attr_init_2_1 (
  25. pthread_attr_t *attr)
  26. {
  27. struct pthread_attr *iattr;
  28. /* Many elements are initialized to zero so let us do it all at
  29. once. This also takes care of clearing the bytes which are not
  30. internally used. */
  31. memset (attr, '\0', __SIZEOF_PTHREAD_ATTR_T);
  32. assert (sizeof (*attr) >= sizeof (struct pthread_attr));
  33. iattr = (struct pthread_attr *) attr;
  34. /* Default guard size specified by the standard. */
  35. iattr->guardsize = getpagesize ();
  36. return 0;
  37. }
  38. weak_alias(__pthread_attr_init_2_1, pthread_attr_init)