study_objc4/objc4-779.1/Common/pthread/spinlock_private.h

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/*
 * Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991  
 *              All Rights Reserved 
 *  
 * Permission to use, copy, modify, and distribute this software and 
 * its documentation for any purpose and without fee is hereby granted, 
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 * that both the copyright notice and this permission notice appear in 
 * supporting documentation. 
 *  
 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
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/*
 * MkLinux
 */

/*
 * POSIX Threads - IEEE 1003.1c
 */

#ifndef _POSIX_PTHREAD_SPINLOCK_H
#define _POSIX_PTHREAD_SPINLOCK_H

#include <sys/cdefs.h>
#include <mach/mach.h>
#include <libkern/OSAtomic.h>

typedef volatile OSSpinLock pthread_lock_t __deprecated_msg("Use <os/lock.h> instead");

#define LOCK_INIT(l) ((l) = OS_SPINLOCK_INIT)
#define LOCK_INITIALIZER OS_SPINLOCK_INIT

#define _DO_SPINLOCK_LOCK(v) OSSpinLockLock(v)
#define _DO_SPINLOCK_UNLOCK(v) OSSpinLockUnlock(v)

#define TRY_LOCK(v) OSSpinLockTry((volatile OSSpinLock *)&(v))
#define LOCK(v) OSSpinLockLock((volatile OSSpinLock *)&(v))
#define UNLOCK(v) OSSpinLockUnlock((volatile OSSpinLock *)&(v))

extern void _spin_lock(pthread_lock_t *lockp) __deprecated_msg("Use <os/lock.h> instead");
extern int _spin_lock_try(pthread_lock_t *lockp) __deprecated_msg("Use <os/lock.h> instead");
extern void _spin_unlock(pthread_lock_t *lockp) __deprecated_msg("Use <os/lock.h> instead");

extern void spin_lock(pthread_lock_t *lockp) __deprecated_msg("Use <os/lock.h> instead");
extern int spin_lock_try(pthread_lock_t *lockp) __deprecated_msg("Use <os/lock.h> instead");
extern void spin_unlock(pthread_lock_t *lockp) __deprecated_msg("Use <os/lock.h> instead");

#endif /* _POSIX_PTHREAD_SPINLOCK_H */