Mercurial > hg > orthanc
annotate Core/MultiThreading/ReaderWriterLock.cpp @ 2456:cbb8deaacdf7
Fix static build on CentOS 6
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 03 Jan 2018 20:25:35 +0100 |
parents | 878b59270859 |
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760 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium |
760 | 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 3 of the | |
10 * License, or (at your option) any later version. | |
11 * | |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
23 * | |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
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34 #include "../PrecompiledHeaders.h" |
760 | 35 #include "ReaderWriterLock.h" |
36 | |
37 #include <boost/thread/shared_mutex.hpp> | |
38 | |
39 namespace Orthanc | |
40 { | |
41 namespace | |
42 { | |
43 // Anonymous namespace to avoid clashes between compilation | |
44 // modules. | |
45 | |
46 class ReaderLockable : public ILockable | |
47 { | |
48 private: | |
49 boost::shared_mutex& lock_; | |
50 | |
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51 protected: |
760 | 52 virtual void Lock() |
53 { | |
54 lock_.lock_shared(); | |
55 } | |
56 | |
57 virtual void Unlock() | |
58 { | |
59 lock_.unlock_shared(); | |
60 } | |
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61 |
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62 public: |
2223 | 63 explicit ReaderLockable(boost::shared_mutex& lock) : lock_(lock) |
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64 { |
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65 } |
760 | 66 }; |
67 | |
68 | |
69 class WriterLockable : public ILockable | |
70 { | |
71 private: | |
72 boost::shared_mutex& lock_; | |
73 | |
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74 protected: |
760 | 75 virtual void Lock() |
76 { | |
77 lock_.lock(); | |
78 } | |
79 | |
80 virtual void Unlock() | |
81 { | |
82 lock_.unlock(); | |
83 } | |
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84 |
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85 public: |
2223 | 86 explicit WriterLockable(boost::shared_mutex& lock) : lock_(lock) |
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87 { |
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88 } |
760 | 89 }; |
90 } | |
91 | |
92 struct ReaderWriterLock::PImpl | |
93 { | |
94 boost::shared_mutex lock_; | |
95 ReaderLockable reader_; | |
96 WriterLockable writer_; | |
97 | |
98 PImpl() : reader_(lock_), writer_(lock_) | |
99 { | |
100 } | |
101 }; | |
102 | |
103 | |
104 ReaderWriterLock::ReaderWriterLock() | |
105 { | |
106 pimpl_ = new PImpl; | |
107 } | |
108 | |
109 | |
110 ReaderWriterLock::~ReaderWriterLock() | |
111 { | |
112 delete pimpl_; | |
113 } | |
114 | |
115 | |
116 ILockable& ReaderWriterLock::ForReader() | |
117 { | |
118 return pimpl_->reader_; | |
119 } | |
120 | |
121 | |
122 ILockable& ReaderWriterLock::ForWriter() | |
123 { | |
124 return pimpl_->writer_; | |
125 } | |
126 } |