annotate Resources/Graveyard/Multithreading/Mutex.cpp @ 2610:3ff4c50647ea jobs

moving the old scheduler to the graveyard
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 19 May 2018 16:40:26 +0200
parents Resources/Graveyard/Mutex.cpp@3caca43371f5
children 4e43e67f8ecf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
760
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
1 /**
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1337
diff changeset
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
1288
6e7e5ed91c2d upgrade to year 2015
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 937
diff changeset
4 * Department, University Hospital of Liege, Belgium
2447
878b59270859 upgrade to year 2018
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2364
diff changeset
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
760
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
6 *
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
7 * This program is free software: you can redistribute it and/or
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
8 * modify it under the terms of the GNU General Public License as
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
9 * published by the Free Software Foundation, either version 3 of the
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
10 * License, or (at your option) any later version.
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
11 *
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
12 * In addition, as a special exception, the copyright holders of this
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
13 * program give permission to link the code of its release with the
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
15 * that use the same license as the "OpenSSL" library), and distribute
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
16 * the linked executables. You must obey the GNU General Public License
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
17 * in all respects for all of the code used other than "OpenSSL". If you
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
18 * modify file(s) with this exception, you may extend this exception to
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
19 * your version of the file(s), but you are not obligated to do so. If
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
20 * you do not wish to do so, delete this exception statement from your
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
21 * version. If you delete this exception statement from all source files
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
22 * in the program, then also delete it here.
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
23 *
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
24 * This program is distributed in the hope that it will be useful, but
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
25 * WITHOUT ANY WARRANTY; without even the implied warranty of
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
27 * General Public License for more details.
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
28 *
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
29 * You should have received a copy of the GNU General Public License
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
31 **/
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
32
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
33
824
a811bdf8b8eb precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 760
diff changeset
34 #include "../PrecompiledHeaders.h"
760
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
35 #include "Mutex.h"
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
36
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
37 #include "../OrthancException.h"
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
38
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
39 #if defined(_WIN32)
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
40 #include <windows.h>
2364
ae50eccd41b7 compilation succeeds on OpenBSD
jodogne
parents: 2244
diff changeset
41 #elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
760
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
42 #include <pthread.h>
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
43 #else
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
44 #error Support your platform here
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
45 #endif
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
46
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
47 namespace Orthanc
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
48 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
49 #if defined (_WIN32)
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
50
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
51 struct Mutex::PImpl
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
52 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
53 CRITICAL_SECTION criticalSection_;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
54 };
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
55
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
56 Mutex::Mutex()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
57 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
58 pimpl_ = new PImpl;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
59 ::InitializeCriticalSection(&pimpl_->criticalSection_);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
60 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
61
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
62 Mutex::~Mutex()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
63 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
64 ::DeleteCriticalSection(&pimpl_->criticalSection_);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
65 delete pimpl_;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
66 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
67
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
68 void Mutex::Lock()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
69 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
70 ::EnterCriticalSection(&pimpl_->criticalSection_);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
71 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
72
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
73 void Mutex::Unlock()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
74 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
75 ::LeaveCriticalSection(&pimpl_->criticalSection_);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
76 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
77
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
78
2364
ae50eccd41b7 compilation succeeds on OpenBSD
jodogne
parents: 2244
diff changeset
79 #elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
760
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
80
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
81 struct Mutex::PImpl
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
82 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
83 pthread_mutex_t mutex_;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
84 };
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
85
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
86 Mutex::Mutex()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
87 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
88 pimpl_ = new PImpl;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
89
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
90 if (pthread_mutex_init(&pimpl_->mutex_, NULL) != 0)
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
91 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
92 delete pimpl_;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
93 throw OrthancException(ErrorCode_InternalError);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
94 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
95 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
96
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
97 Mutex::~Mutex()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
98 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
99 pthread_mutex_destroy(&pimpl_->mutex_);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
100 delete pimpl_;
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
101 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
102
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
103 void Mutex::Lock()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
104 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
105 if (pthread_mutex_lock(&pimpl_->mutex_) != 0)
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
106 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
107 throw OrthancException(ErrorCode_InternalError);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
108 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
109 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
110
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
111 void Mutex::Unlock()
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
112 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
113 if (pthread_mutex_unlock(&pimpl_->mutex_) != 0)
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
114 {
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
115 throw OrthancException(ErrorCode_InternalError);
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
116 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
117 }
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
118
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
119 #else
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
120 #error Support your plateform here
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
121 #endif
b2a62f22fbe8 lock abstraction
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
122 }