source: trunk/sys/libphoenix/synch.h @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

First import

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1/* Copyright (c) 2007-2009, Stanford University
2* All rights reserved.
3*
4* Redistribution and use in source and binary forms, with or without
5* modification, are permitted provided that the following conditions are met:
6*     * Redistributions of source code must retain the above copyright
7*       notice, this list of conditions and the following disclaimer.
8*     * Redistributions in binary form must reproduce the above copyright
9*       notice, this list of conditions and the following disclaimer in the
10*       documentation and/or other materials provided with the distribution.
11*     * Neither the name of Stanford University nor the names of its
12*       contributors may be used to endorse or promote products derived from
13*       this software without specific prior written permission.
14*
15* THIS SOFTWARE IS PROVIDED BY STANFORD UNIVERSITY ``AS IS'' AND ANY
16* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18* DISCLAIMED. IN NO EVENT SHALL STANFORD UNIVERSITY BE LIABLE FOR ANY
19* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25*/ 
26
27#ifndef SYNCH_H_
28#define SYNCH_H_
29
30//#define MR_LOCK_MCS
31#define MR_LOCK_PTMUTEX
32
33typedef void* mr_lock_t;
34
35typedef struct mr_lock_ops {
36    mr_lock_t   (*alloc)(void);
37    void        (*acquire)(mr_lock_t l);
38    void        (*release)(mr_lock_t l);
39    mr_lock_t   (*alloc_per_thread)(mr_lock_t l);
40    void        (*free)(mr_lock_t l);
41    void        (*free_per_thread)(mr_lock_t l);
42} mr_lock_ops;
43
44void        lock_free(mr_lock_t l);
45void        lock_acquire(mr_lock_t l);
46void        lock_release(mr_lock_t l);
47mr_lock_t   lock_alloc(void);
48mr_lock_t   lock_alloc_per_thread(mr_lock_t parent);
49void        lock_free_per_thread(mr_lock_t mr);
50
51#endif /* SYNCH_H_ */
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