Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Deprecated/Messages/LockingEmitter.h @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Deprecated/Messages/LockingEmitter.h@30deba7bc8e2 |
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1 /** |
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2 * Stone of Orthanc |
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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) 2017-2020 Osimis S.A., Belgium |
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6 * |
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7 * This program is free software: you can redistribute it and/or |
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8 * modify it under the terms of the GNU Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * Affero General Public License for more details. |
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16 * |
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17 * You should have received a copy of the GNU Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 #pragma once |
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22 |
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23 #include <Enumerations.h> |
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24 #include <OrthancException.h> |
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25 |
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26 #include "../../Messages/IMessageEmitter.h" |
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27 #include "../../Messages/IObservable.h" |
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28 |
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29 #include <boost/thread/shared_mutex.hpp> |
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30 |
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31 namespace Deprecated |
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32 { |
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33 /** |
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34 * This class is used when using the ThreadedOracle : since messages |
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35 * can be sent from multiple Oracle threads, this IMessageEmitter |
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36 * implementation serializes the callbacks. |
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37 * |
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38 * The internal mutex used in Oracle messaging can also be used to |
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39 * protect the application data. Thus, this class can be used as a single |
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40 * application-wide mutex. |
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41 */ |
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42 class LockingEmitter : public OrthancStone::IMessageEmitter |
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43 { |
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44 private: |
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45 boost::shared_mutex mutex_; |
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46 OrthancStone::IObservable oracleObservable_; |
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47 |
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48 public: |
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49 virtual void EmitMessage(boost::weak_ptr<OrthancStone::IObserver> observer, |
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50 const OrthancStone::IMessage& message) ORTHANC_OVERRIDE; |
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51 |
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52 |
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53 class ReaderLock : public boost::noncopyable |
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54 { |
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55 private: |
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56 LockingEmitter& that_; |
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57 boost::shared_lock<boost::shared_mutex> lock_; |
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58 |
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59 public: |
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60 ReaderLock(LockingEmitter& that) : |
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61 that_(that), |
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62 lock_(that.mutex_) |
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63 { |
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64 } |
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65 }; |
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66 |
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67 |
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68 class WriterLock : public boost::noncopyable |
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69 { |
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70 private: |
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71 LockingEmitter& that_; |
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72 boost::unique_lock<boost::shared_mutex> lock_; |
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73 |
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74 public: |
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75 WriterLock(LockingEmitter& that) : |
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76 that_(that), |
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77 lock_(that.mutex_) |
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78 { |
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79 } |
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80 |
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81 OrthancStone::IObservable& GetOracleObservable() |
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82 { |
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83 return that_.oracleObservable_; |
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84 } |
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85 }; |
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86 }; |
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87 } |