initspin.h 1.2 KB

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  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 Library General Public License as
  6. published by the Free Software Foundation; either version 2 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. Library General Public License for more details.
  12. You should have received a copy of the GNU Library General Public
  13. License along with the GNU C Library; see the file COPYING.LIB. If not,
  14. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  15. Boston, MA 02111-1307, USA. */
  16. /* Initial value of a spinlock. Most platforms should use zero,
  17. unless they only implement a "test and clear" operation instead of
  18. the usual "test and set". */
  19. #define __ATOMIC_LOCK_INIT 0
  20. /* Macros for lock initializers, using the above definition. */
  21. #define __LOCK_INITIALIZER { 0, 0 }
  22. #define __ATOMIC_INITIALIZER { 0, 0 }