Mercurial > hg > orthanc

annotate OrthancServer/Plugins/Engine/OrthancPluginDatabase.h @ 4595:cc64385593ef db-changes

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added OrthancPluginRegisterDatabaseBackendV3() to plugin sdk
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 16 Mar 2021 17:58:16 +0100
parents d494b4f1103e
children c125bfd31023
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
1900
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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) 2017-2021 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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #pragma once
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35
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36 #if ORTHANC_ENABLE_PLUGINS == 1
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37
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38 #include "../../../OrthancFramework/Sources/SharedLibrary.h"
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39 #include "../../Sources/Database/IDatabaseWrapper.h"
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40 #include "../Include/orthanc/OrthancCDatabasePlugin.h"
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41 #include "PluginsErrorDictionary.h"
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42
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43 #include <boost/thread/recursive_mutex.hpp>
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44
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45 namespace Orthanc
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46 {
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47 /**
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48 * This class is for backward compatibility with database plugins
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49 * that don't use the primitives introduced in Orthanc 1.10.0 to
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50 * deal with concurrent read-only transactions.
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51 *
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52 * In Orthanc <= 1.9.1, Orthanc assumed that at most 1 single thread
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53 * was accessing the database plugin at anytime, in order to match
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54 * the SQLite model. Read-write accesses assumed the plugin to run
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55 * the SQL statement "START TRANSACTION SERIALIZABLE" so as to be
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56 * able to rollback the modifications. Read-only accesses didn't
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57 * start a transaction, as they were protected by the global mutex.
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58 **/
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59 class OrthancPluginDatabase : public IDatabaseWrapper
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60 {
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61 private:
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62 class Transaction;
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63
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64 /**
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65 * We need a "recursive_mutex" because of "AnswerReceived()" that
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66 * is called by the "answer" primitives of the database SDK once a
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67 * transaction is running.
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68 **/
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69 boost::recursive_mutex mutex_;
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70
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71 SharedLibrary& library_;
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72 PluginsErrorDictionary& errorDictionary_;
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73 OrthancPluginDatabaseBackend backend_;
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74 OrthancPluginDatabaseExtensions extensions_;
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75 void* payload_;
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76 Transaction* activeTransaction_;
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77 bool fastGetTotalSize_;
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78 uint64_t currentDiskSize_;
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79
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80 OrthancPluginDatabaseContext* GetContext()
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81 {
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82 return reinterpret_cast<OrthancPluginDatabaseContext*>(this);
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83 }
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84
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85 void CheckSuccess(OrthancPluginErrorCode code);
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86
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87 public:
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88 OrthancPluginDatabase(SharedLibrary& library,
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89 PluginsErrorDictionary& errorDictionary,
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90 const OrthancPluginDatabaseBackend& backend,
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91 const OrthancPluginDatabaseExtensions* extensions,
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92 size_t extensionsSize,
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93 void *payload);
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94
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95 virtual void Open() ORTHANC_OVERRIDE;
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96
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97 virtual void Close() ORTHANC_OVERRIDE;
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98
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99 const SharedLibrary& GetSharedLibrary() const
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100 {
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101 return library_;
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102 }
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103
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104 virtual void FlushToDisk() ORTHANC_OVERRIDE
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105 {
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106 }
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107
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108 virtual bool HasFlushToDisk() const ORTHANC_OVERRIDE
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109 {
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110 return false;
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111 }
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112
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113 virtual IDatabaseWrapper::ITransaction* StartTransaction(TransactionType type,
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114 IDatabaseListener& listener)
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115 ORTHANC_OVERRIDE;
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116
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117 virtual unsigned int GetDatabaseVersion() ORTHANC_OVERRIDE;
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118
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119 virtual void Upgrade(unsigned int targetVersion,
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120 IStorageArea& storageArea) ORTHANC_OVERRIDE;
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121
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122 void AnswerReceived(const _OrthancPluginDatabaseAnswer& answer);
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123 };
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124 }
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eb8fbcf008b5 fix build with plugins disabled
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1630
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125
eb8fbcf008b5 fix build with plugins disabled
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1630
diff changeset
126 #endif