1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin *                                                                      *
3da2e3ebdSchin *               This software is part of the ast package               *
4*b30d1939SAndy Fiddaman *          Copyright (c) 1985-2012 AT&T Intellectual Property          *
5da2e3ebdSchin *                      and is licensed under the                       *
6*b30d1939SAndy Fiddaman *                 Eclipse Public License, Version 1.0                  *
77c2fbfb3SApril Chin *                    by AT&T Intellectual Property                     *
8da2e3ebdSchin *                                                                      *
9da2e3ebdSchin *                A copy of the License is available at                 *
10*b30d1939SAndy Fiddaman *          http://www.eclipse.org/org/documents/epl-v10.html           *
11*b30d1939SAndy Fiddaman *         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
12da2e3ebdSchin *                                                                      *
13da2e3ebdSchin *              Information and Software Systems Research               *
14da2e3ebdSchin *                            AT&T Research                             *
15da2e3ebdSchin *                           Florham Park NJ                            *
16da2e3ebdSchin *                                                                      *
17da2e3ebdSchin *                 Glenn Fowler <gsf@research.att.com>                  *
18da2e3ebdSchin *                  David Korn <dgk@research.att.com>                   *
19da2e3ebdSchin *                   Phong Vo <kpv@research.att.com>                    *
20da2e3ebdSchin *                                                                      *
21da2e3ebdSchin ***********************************************************************/
22*b30d1939SAndy Fiddaman #ifndef _ASO_H
23*b30d1939SAndy Fiddaman #define _ASO_H		1
24da2e3ebdSchin 
25*b30d1939SAndy Fiddaman #define ASO_UNLOCK	0	/* unlock if key matches  		*/
26*b30d1939SAndy Fiddaman #define ASO_TRYLOCK	1	/* matched key means successful attempt	*/
27*b30d1939SAndy Fiddaman #define ASO_LOCK	2	/* matched key first, then spin-lock	*/
28*b30d1939SAndy Fiddaman #define ASO_SPINLOCK	3	/* no matching of key before locking	*/
29da2e3ebdSchin 
30*b30d1939SAndy Fiddaman extern int		asolock(unsigned int volatile*, unsigned int, int);
31da2e3ebdSchin 
32da2e3ebdSchin #endif
33