1 /*
2   This file is part of drd, a thread error detector.
3 
4   Copyright (C) 2006-2017 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 
36 struct semaphore_info;
37 
38 
39 void DRD_(semaphore_set_trace)(const Bool trace_semaphore);
40 struct semaphore_info* DRD_(semaphore_init)(const Addr semaphore,
41                                             const Word pshared,
42                                             const UInt value);
43 void DRD_(semaphore_destroy)(const Addr semaphore);
44 struct semaphore_info* DRD_(semaphore_open)(const Addr semaphore,
45                                             const HChar* name, const Word oflag,
46                                             const Word mode, const UInt value);
47 void DRD_(semaphore_close)(const Addr semaphore);
48 void DRD_(semaphore_pre_wait)(const Addr semaphore);
49 void DRD_(semaphore_post_wait)(const DrdThreadId tid, const Addr semaphore,
50                                const Bool waited);
51 void DRD_(semaphore_pre_post)(const DrdThreadId tid, const Addr semaphore);
52 void DRD_(semaphore_post_post)(const DrdThreadId tid, const Addr semaphore,
53                                const Bool waited);
54 ULong DRD_(get_semaphore_segment_creation_count)(void);
55 
56 
57 #endif /* __DRD_SEMAPHORE_H */
58