initspin.h 1.3 KB

123456789101112131415161718192021222324252627
  1. /* Generic definitions for spinlock initializers.
  2. Copyright (C) 2000, 2001 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  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 License as
  6. published by the Free Software Foundation; either version 2.1 of the
  7. 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; see the file COPYING.LIB. If
  14. not, see <http://www.gnu.org/licenses/>. */
  15. /* Initial value of a spinlock. Most platforms should use zero,
  16. unless they only implement a "test and clear" operation instead of
  17. the usual "test and set". */
  18. #define __LT_SPINLOCK_INIT 0
  19. /* Macros for lock initializers, using the above definition. */
  20. #define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
  21. #define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
  22. #define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }