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glibc  2.9
initspin.h
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00001 /* PA-RISC specific 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.  PA-RISC only implements atomic load
00021    and clear so this must be non-zero. */
00022 #define __LT_SPINLOCK_INIT ((__atomic_lock_t) { { 1, 1, 1, 1 } })
00023 
00024 /* Initialize global spinlocks without cast, generally macro wrapped */
00025 #define __LT_SPINLOCK_ALT_INIT { { 1, 1, 1, 1 } }
00026 
00027 /* Macros for lock initializers, not using the above definition.
00028    The above definition is not used in the case that static initializers
00029    use this value. */
00030 #define __LOCK_ALT_INITIALIZER { __LT_SPINLOCK_ALT_INIT, 0 }
00031 
00032 /* Used to initialize _pthread_fastlock's in non-static case */
00033 #define __LOCK_INITIALIZER ((struct _pthread_fastlock){ __LT_SPINLOCK_INIT, 0 })
00034 
00035 /* Used in pthread_atomic initialization */
00036 #define __ATOMIC_INITIALIZER { 0, __LT_SPINLOCK_ALT_INIT }
00037 
00038 /* Tell the rest of the code that the initializer is non-zero without
00039    explaining it's internal structure */
00040 #define __LT_INITIALIZER_NOT_ZERO
00041