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glibc  2.9
initspin.h
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00001 /* Generic definitions for spinlock initializers.
00002    Copyright (C) 2000, 2001 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public License as
00007    published by the Free Software Foundation; either version 2.1 of the
00008    License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; see the file COPYING.LIB.  If not,
00017    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00018    Boston, MA 02111-1307, USA.  */
00019 
00020 /* Initial value of a spinlock.  Most platforms should use zero,
00021    unless they only implement a "test and clear" operation instead of
00022    the usual "test and set". */
00023 #define __LT_SPINLOCK_INIT 0
00024 
00025 /* Macros for lock initializers, using the above definition. */
00026 #define __LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
00027 #define __ALT_LOCK_INITIALIZER { 0, __LT_SPINLOCK_INIT }
00028 #define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_INIT }