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simplemutex.h
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1 /*
2  * libpal - Automated Placement of Labels Library
3  *
4  * Copyright (C) 2008 Maxence Laurent, MIS-TIC, HEIG-VD
5  * University of Applied Sciences, Western Switzerland
6  * http://www.hes-so.ch
7  *
8  * Contact:
9  * maxence.laurent <at> heig-vd <dot> ch
10  * or
11  * eric.taillard <at> heig-vd <dot> ch
12  *
13  * This file is part of libpal.
14  *
15  * libpal is free software: you can redistribute it and/or modify
16  * it under the terms of the GNU General Public License as published by
17  * the Free Software Foundation, either version 3 of the License, or
18  * (at your option) any later version.
19  *
20  * libpal is distributed in the hope that it will be useful,
21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23  * GNU General Public License for more details.
24  *
25  * You should have received a copy of the GNU General Public License
26  * along with libpal. If not, see <http://www.gnu.org/licenses/>.
27  *
28  */
29 
30 #ifndef _SIMPLE_MUTEX_H_
31 #define _SIMPLE_MUTEX_H_
32 
33 
34 #ifdef HAVE_CONFIG_H
35 #include <config.h>
36 #endif
37 
38 // Platform dependent mutex
39 #ifdef _HAVE_PTHREAD_
40 #include <pthread.h>
41 #define THREAD_TYPE pthread_mutex_t
42 
43 
44 #define CREATE_MUTEX(mutex) (pthread_mutex_init(&mutex, NULL))
45 #define LOCK(mutex) (pthread_mutex_lock(&mutex))
46 #define UNLOCK(mutex) (pthread_mutex_unlock(&mutex))
47 #define DESTROY_MUTEX(mutex) (pthread_mutex_destroy(&mutex))
48 #endif
49 
50 #ifdef _HAVE_WINDOWS_H_
51 #include <windows.h>
52 #define THREAD_TYPE HANDLE
53 #define CREATE_MUTEX(mutex) (mutex = CreateMutex(0, false, 0))
54 #define LOCK(mutex) (WaitForSingleObject(mutex, INFINITE))
55 #define UNLOCK(mutex) (ReleaseMutex(mutex))
56 #define DESTROY_MUTEX(mutex) (CloseHandle(mutex))
57 #endif
58 
59 namespace pal
60 {
61 
62  typedef THREAD_TYPE MUTEX_T;
63 
65  {
66  private:
67  MUTEX_T mutex;
68 
69  public:
71  {
72  CREATE_MUTEX( mutex );
73  }
74 
76  {
77  DESTROY_MUTEX( mutex );
78  }
79 
80  void lock()
81  {
82  LOCK( mutex );
83  }
84 
85  void unlock()
86  {
87  UNLOCK( mutex );
88  }
89  };
90 
91 } // namespace
92 
93 #endif
THREAD_TYPE MUTEX_T
Definition: simplemutex.h:62
void lock()
Definition: simplemutex.h:80
SimpleMutex()
Definition: simplemutex.h:70
Definition: simplemutex.h:64
Definition: qgsdiagramrendererv2.h:37
void unlock()
Definition: simplemutex.h:85
~SimpleMutex()
Definition: simplemutex.h:75