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annotate Framework/Plugins/IndexConnectionsPool.h @ 405:1938ba8fba35

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 15 Apr 2023 13:49:53 +0200
parents 3d6886f3e5b3
children de6de66d70b2
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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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 Affero 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.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include "IndexBackend.h"
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27 #include <MultiThreading/SharedMessageQueue.h>
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28
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29 #include <list>
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30
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31 namespace OrthancDatabases
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32 {
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33 class IndexConnectionsPool : public boost::noncopyable
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34 {
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35 private:
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36 class ManagerReference;
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37
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38 std::unique_ptr<IndexBackend> backend_;
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39 OrthancPluginContext* context_;
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40 boost::shared_mutex connectionsMutex_;
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41 size_t countConnections_;
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42 std::list<DatabaseManager*> connections_;
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43 Orthanc::SharedMessageQueue availableConnections_;
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45 public:
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46 IndexConnectionsPool(IndexBackend* backend /* takes ownership */,
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47 size_t countConnections);
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48
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49 ~IndexConnectionsPool();
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50
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51 OrthancPluginContext* GetContext() const
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52 {
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53 return context_;
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54 }
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55
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56 void OpenConnections();
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57
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58 void CloseConnections();
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59
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60 class Accessor : public boost::noncopyable
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61 {
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62 private:
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63 boost::shared_lock<boost::shared_mutex> lock_;
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64 IndexConnectionsPool& pool_;
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65 DatabaseManager* manager_;
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66
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67 public:
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68 explicit Accessor(IndexConnectionsPool& pool);
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70 ~Accessor();
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71
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72 IndexBackend& GetBackend() const;
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73
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74 DatabaseManager& GetManager() const;
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75 };
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76 };
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77 }