Mercurial > hg > orthanc
annotate OrthancFramework/Resources/Graveyard/Multithreading/ReaderWriterLock.cpp @ 5218:afa96af2eb5a db-protobuf
typo
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 03 Apr 2023 17:00:12 +0200 |
| parents | 0ea402b4d901 |
| children | 48b8dae6dc77 |
| rev | line source |
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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) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 760 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
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10 * as published by the Free Software Foundation, either version 3 of |
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11 * the License, or (at your option) any later version. |
| 760 | 12 * |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 * Lesser General Public License for more details. |
| 760 | 17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 760 | 21 **/ |
| 22 | |
| 23 | |
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24 #include "../PrecompiledHeaders.h" |
| 760 | 25 #include "ReaderWriterLock.h" |
| 26 | |
| 27 #include <boost/thread/shared_mutex.hpp> | |
| 28 | |
| 29 namespace Orthanc | |
| 30 { | |
| 31 namespace | |
| 32 { | |
| 33 // Anonymous namespace to avoid clashes between compilation | |
| 34 // modules. | |
| 35 | |
| 36 class ReaderLockable : public ILockable | |
| 37 { | |
| 38 private: | |
| 39 boost::shared_mutex& lock_; | |
| 40 | |
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41 protected: |
| 760 | 42 virtual void Lock() |
| 43 { | |
| 44 lock_.lock_shared(); | |
| 45 } | |
| 46 | |
| 47 virtual void Unlock() | |
| 48 { | |
| 49 lock_.unlock_shared(); | |
| 50 } | |
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51 |
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52 public: |
| 2223 | 53 explicit ReaderLockable(boost::shared_mutex& lock) : lock_(lock) |
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54 { |
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55 } |
| 760 | 56 }; |
| 57 | |
| 58 | |
| 59 class WriterLockable : public ILockable | |
| 60 { | |
| 61 private: | |
| 62 boost::shared_mutex& lock_; | |
| 63 | |
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64 protected: |
| 760 | 65 virtual void Lock() |
| 66 { | |
| 67 lock_.lock(); | |
| 68 } | |
| 69 | |
| 70 virtual void Unlock() | |
| 71 { | |
| 72 lock_.unlock(); | |
| 73 } | |
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74 |
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75 public: |
| 2223 | 76 explicit WriterLockable(boost::shared_mutex& lock) : lock_(lock) |
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77 { |
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78 } |
| 760 | 79 }; |
| 80 } | |
| 81 | |
| 82 struct ReaderWriterLock::PImpl | |
| 83 { | |
| 84 boost::shared_mutex lock_; | |
| 85 ReaderLockable reader_; | |
| 86 WriterLockable writer_; | |
| 87 | |
| 88 PImpl() : reader_(lock_), writer_(lock_) | |
| 89 { | |
| 90 } | |
| 91 }; | |
| 92 | |
| 93 | |
| 94 ReaderWriterLock::ReaderWriterLock() | |
| 95 { | |
| 96 pimpl_ = new PImpl; | |
| 97 } | |
| 98 | |
| 99 | |
| 100 ReaderWriterLock::~ReaderWriterLock() | |
| 101 { | |
| 102 delete pimpl_; | |
| 103 } | |
| 104 | |
| 105 | |
| 106 ILockable& ReaderWriterLock::ForReader() | |
| 107 { | |
| 108 return pimpl_->reader_; | |
| 109 } | |
| 110 | |
| 111 | |
| 112 ILockable& ReaderWriterLock::ForWriter() | |
| 113 { | |
| 114 return pimpl_->writer_; | |
| 115 } | |
| 116 } |