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 // Reader-writer lock state information.
26 
27 
28 #ifndef __DRD_RWLOCK_H
29 #define __DRD_RWLOCK_H
30 
31 
32 #include "drd_clientobj.h"        // struct rwlock_info
33 #include "drd_thread.h"           // DrdThreadId
34 #include "pub_tool_basics.h"      // Addr
35 
36 
37 struct rwlock_info;
38 
39 
40 void DRD_(rwlock_set_trace)(const Bool trace_rwlock);
41 void DRD_(rwlock_set_exclusive_threshold)(const UInt exclusive_threshold_ms);
42 void DRD_(rwlock_set_shared_threshold)(const UInt shared_threshold_ms);
43 struct rwlock_info* DRD_(rwlock_pre_init)(const Addr rwlock,
44                                           const RwLockT rwlock_type);
45 void DRD_(rwlock_post_destroy)(const Addr rwlock, const RwLockT rwlock_type);
46 void DRD_(rwlock_pre_rdlock)(const Addr rwlock, const RwLockT rwlock_type);
47 void DRD_(rwlock_post_rdlock)(const Addr rwlock, const RwLockT rwlock_type,
48                               const Bool took_lock);
49 void DRD_(rwlock_pre_wrlock)(const Addr rwlock, const RwLockT rwlock_type);
50 void DRD_(rwlock_post_wrlock)(const Addr rwlock, const RwLockT rwlock_type,
51                               const Bool took_lock);
52 void DRD_(rwlock_pre_unlock)(const Addr rwlock, const RwLockT rwlock_type);
53 ULong DRD_(get_rwlock_segment_creation_count)(void);
54 
55 
56 #endif /* __DRD_RWLOCK_H */
57