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/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _SYS_SYNCH_H
#define _SYS_SYNCH_H
#define __need_synch_bits
#include <bits/synch.h>
/* general *_type values */
#define USYNC_THREAD 0x00
#define USYNC_PROCESS 0x01
/* mutex_type values */
#define LOCK_NORMAL USYNC_THREAD
#define LOCK_SHARED USYNC_PROCESS
#define LOCK_ERRORCHECK 0x02
#define LOCK_RECURSIVE 0x04
#define LOCK_PRIO_INHERIT 0x10
#define LOCK_PRIO_PROTECT 0x20
#define LOCK_ROBUST 0x40
/* deprecated */
#define USYNC_PROCESS_ROBUST 0x08
/* mutex_flag values */
#define LOCK_OWNERDEAD 0x01
#define LOCK_NOTRECOVERABLE 0x02
#define LOCK_INITED 0x04
#define LOCK_UNMAPPED 0x08
#define MUTEX_MAGIC 0x4d58 /* "MX" */
#define SEMA_MAGIC 0x534d /* "SM" */
#define COND_MAGIC 0x4356 /* "CV" */
#define RWL_MAGIC 0x5257 /* "RW" */
/* mutex initializers */
#define DEFAULTMUTEX \
{{0, 0, 0, {USYNC_THREAD}, MUTEX_MAGIC}, \
{{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0}
#define SHAREDMUTEX \
{{0, 0, 0, {USYNC_PROCESS}, MUTEX_MAGIC}, \
{{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0}
#define RECURSIVEMUTEX \
{{0, 0, 0, {USYNC_THREAD|LOCK_RECURSIVE}, MUTEX_MAGIC}, \
{{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0}
#define ERRORCHECKMUTEX \
{{0, 0, 0, {USYNC_THREAD|LOCK_ERRORCHECK}, MUTEX_MAGIC}, \
{{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0}
#define RECURSIVE_ERRORCHECKMUTEX \
{{0, 0, 0, {USYNC_THREAD|LOCK_RECURSIVE|LOCK_ERRORCHECK}, \
MUTEX_MAGIC}, {{{0, 0, 0, 0, 0, 0, 0, 0}}}, 0}
/* condition variable initializers */
#define DEFAULTCV \
{{{0, 0, 0, 0}, USYNC_THREAD, COND_MAGIC}, 0}
#define SHAREDCV \
{{{0, 0, 0, 0}, USYNC_PROCESS, COND_MAGIC}, 0}
/* semaphore initializers */
#define DEFAULTSEMA \
{0, USYNC_THREAD, SEMA_MAGIC, {0, 0, 0}, {0, 0}}
#define SHAREDSEMA \
{0, USYNC_PROCESS, SEMA_MAGIC, {0, 0, 0}, {0, 0}}
/* reader/writer lock initializers */
#define DEFAULTRWLOCK \
{0, USYNC_THREAD, RWL_MAGIC, DEFAULTMUTEX, DEFAULTCV, DEFAULTCV}
#define SHAREDRWLOCK \
{0, USYNC_PROCESS, RWL_MAGIC, SHAREDMUTEX, SHAREDCV, SHAREDCV}
#endif /* _SYS_SYNCH_H */
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