1/* -*- mode: C; c-basic-offset: 3; indent-tabs-mode: nil; -*- */
2/*
3  This file is part of drd, a thread error detector.
4
5  Copyright (C) 2006-2011 Bart Van Assche <bvanassche@acm.org>.
6
7  This program is free software; you can redistribute it and/or
8  modify it under the terms of the GNU General Public License as
9  published by the Free Software Foundation; either version 2 of the
10  License, or (at your option) any later version.
11
12  This program is distributed in the hope that it will be useful, but
13  WITHOUT ANY WARRANTY; without even the implied warranty of
14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  General Public License for more details.
16
17  You should have received a copy of the GNU General Public License
18  along with this program; if not, write to the Free Software
19  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20  02111-1307, USA.
21
22  The GNU General Public License is contained in the file COPYING.
23*/
24
25
26// Semaphore state information: owner thread and recursion count.
27
28
29#ifndef __DRD_SEMAPHORE_H
30#define __DRD_SEMAPHORE_H
31
32
33#include "drd_thread.h"           // DrdThreadId
34#include "pub_tool_basics.h"      // Addr
35
36
37struct semaphore_info;
38
39
40void DRD_(semaphore_set_trace)(const Bool trace_semaphore);
41struct semaphore_info* DRD_(semaphore_init)(const Addr semaphore,
42                                            const Word pshared,
43                                            const UInt value);
44void DRD_(semaphore_destroy)(const Addr semaphore);
45struct semaphore_info* DRD_(semaphore_open)(const Addr semaphore,
46                                            const Char* name, const Word oflag,
47                                            const Word mode, const UInt value);
48void DRD_(semaphore_close)(const Addr semaphore);
49void DRD_(semaphore_pre_wait)(const Addr semaphore);
50void DRD_(semaphore_post_wait)(const DrdThreadId tid, const Addr semaphore,
51                               const Bool waited);
52void DRD_(semaphore_pre_post)(const DrdThreadId tid, const Addr semaphore);
53void DRD_(semaphore_post_post)(const DrdThreadId tid, const Addr semaphore,
54                               const Bool waited);
55ULong DRD_(get_semaphore_segment_creation_count)(void);
56
57
58#endif /* __DRD_SEMAPHORE_H */
59