1/*
2  This file is part of drd, a thread error detector.
3
4  Copyright (C) 2006-2013 Bart Van Assche <bvanassche@acm.org>.
5
6  This program is free software; you can redistribute it and/or
7  modify it under the terms of the GNU General Public License as
8  published by the Free Software Foundation; either version 2 of the
9  License, or (at your option) any later version.
10
11  This program is distributed in the hope that it will be useful, but
12  WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with this program; if not, write to the Free Software
18  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19  02111-1307, USA.
20
21  The GNU General Public License is contained in the file COPYING.
22*/
23
24
25// Semaphore state information: owner thread and recursion count.
26
27
28#ifndef __DRD_SEMAPHORE_H
29#define __DRD_SEMAPHORE_H
30
31
32#include "drd_thread.h"           // DrdThreadId
33#include "pub_tool_basics.h"      // Addr
34
35
36struct semaphore_info;
37
38
39void DRD_(semaphore_set_trace)(const Bool trace_semaphore);
40struct semaphore_info* DRD_(semaphore_init)(const Addr semaphore,
41                                            const Word pshared,
42                                            const UInt value);
43void DRD_(semaphore_destroy)(const Addr semaphore);
44struct semaphore_info* DRD_(semaphore_open)(const Addr semaphore,
45                                            const HChar* name, const Word oflag,
46                                            const Word mode, const UInt value);
47void DRD_(semaphore_close)(const Addr semaphore);
48void DRD_(semaphore_pre_wait)(const Addr semaphore);
49void DRD_(semaphore_post_wait)(const DrdThreadId tid, const Addr semaphore,
50                               const Bool waited);
51void DRD_(semaphore_pre_post)(const DrdThreadId tid, const Addr semaphore);
52void DRD_(semaphore_post_post)(const DrdThreadId tid, const Addr semaphore,
53                               const Bool waited);
54ULong DRD_(get_semaphore_segment_creation_count)(void);
55
56
57#endif /* __DRD_SEMAPHORE_H */
58