ReactOS 0.4.15-dev-8119-g4fb2fdb
spinlock.h
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1/*
2 * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by John Birrell.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: src/lib/libc/include/spinlock.h,v 1.7 2003/11/05 18:17:30 deischen Exp $
33 *
34 * Lock definitions used in both libc and libpthread.
35 *
36 */
37
38#ifndef _SPINLOCK_H_
39#define _SPINLOCK_H_
40//#include <sys/cdefs.h>
41#include <sys/types.h>
42
43/*
44 * Lock structure with room for debugging information.
45 */
46struct _spinlock {
47 volatile long access_lock;
48 volatile long lock_owner;
49 volatile char *fname;
50 volatile int lineno;
51};
52typedef struct _spinlock spinlock_t;
53
54#define _SPINLOCK_INITIALIZER { 0, 0, 0, 0 }
55
56#define _SPINUNLOCK(_lck) _spinunlock(_lck);
57#ifdef _LOCK_DEBUG
58#define _SPINLOCK(_lck) _spinlock_debug(_lck, __FILE__, __LINE__)
59#else
60#define _SPINLOCK(_lck) _spinlock(_lck)
61#endif
62
63/*
64 * Thread function prototype definitions:
65 */
67long _atomic_lock(volatile long *);
70void _spinlock_debug(spinlock_t *, char *, int);
72
73#endif /* _SPINLOCK_H_ */
void _spinlock_debug(spinlock_t *, char *, int)
void _spinunlock(spinlock_t *)
__BEGIN_DECLS long _atomic_lock(volatile long *)
volatile int lineno
Definition: spinlock.h:50
volatile char * fname
Definition: spinlock.h:49
volatile long lock_owner
Definition: spinlock.h:48
volatile long access_lock
Definition: spinlock.h:47
#define __END_DECLS
Definition: wintirpc.h:63
#define __BEGIN_DECLS
Definition: wintirpc.h:62