125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
/**
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* Orthanc - A Lightweight, RESTful DICOM Store
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* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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* Department, University Hospital of Liege, Belgium
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* Copyright (C) 2017-2023 Osimis S.A., Belgium
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* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
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* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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*
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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**/
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#pragma once
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#if ORTHANC_ENABLE_PLUGINS == 1
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#include "../../../OrthancFramework/Sources/SharedLibrary.h"
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#include "../../Sources/Database/BaseCompatibilityTransaction.h"
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#include "../Include/orthanc/OrthancCDatabasePlugin.h"
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#include "PluginsErrorDictionary.h"
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#include <boost/thread/recursive_mutex.hpp>
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namespace Orthanc
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{
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/**
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* This class is for backward compatibility with database plugins
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* that don't use the primitives introduced in Orthanc 1.9.2 to deal
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* with concurrent read-only transactions.
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*
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* In Orthanc <= 1.9.1, Orthanc assumed that at most 1 single thread
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* was accessing the database plugin at anytime, in order to match
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* the SQLite model. Read-write accesses assumed the plugin to run
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* the SQL statement "START TRANSACTION SERIALIZABLE" so as to be
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* able to rollback the modifications. Read-only accesses didn't
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* start a transaction, as they were protected by the global mutex.
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**/
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class OrthancPluginDatabase : public IDatabaseWrapper
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{
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private:
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class Transaction;
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/**
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* We need a "recursive_mutex" because of "AnswerReceived()" that
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* is called by the "answer" primitives of the database SDK once a
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* transaction is running.
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**/
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boost::recursive_mutex mutex_;
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SharedLibrary& library_;
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PluginsErrorDictionary& errorDictionary_;
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OrthancPluginDatabaseBackend backend_;
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OrthancPluginDatabaseExtensions extensions_;
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void* payload_;
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Transaction* activeTransaction_;
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bool fastGetTotalSize_;
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uint64_t currentDiskSize_;
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IDatabaseWrapper::Capabilities dbCapabilities_;
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OrthancPluginDatabaseContext* GetContext()
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{
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return reinterpret_cast<OrthancPluginDatabaseContext*>(this);
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}
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void CheckSuccess(OrthancPluginErrorCode code);
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public:
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OrthancPluginDatabase(SharedLibrary& library,
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PluginsErrorDictionary& errorDictionary,
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const OrthancPluginDatabaseBackend& backend,
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const OrthancPluginDatabaseExtensions* extensions,
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size_t extensionsSize,
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void *payload);
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virtual void Open() ORTHANC_OVERRIDE;
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virtual void Close() ORTHANC_OVERRIDE;
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const SharedLibrary& GetSharedLibrary() const
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{
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return library_;
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}
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virtual void FlushToDisk() ORTHANC_OVERRIDE
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{
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}
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virtual IDatabaseWrapper::ITransaction* StartTransaction(TransactionType type,
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IDatabaseListener& listener)
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ORTHANC_OVERRIDE;
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virtual unsigned int GetDatabaseVersion() ORTHANC_OVERRIDE;
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virtual void Upgrade(unsigned int targetVersion,
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IPluginStorageArea& storageArea) ORTHANC_OVERRIDE;
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virtual const Capabilities GetDatabaseCapabilities() const ORTHANC_OVERRIDE
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{
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return dbCapabilities_;
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}
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void AnswerReceived(const _OrthancPluginDatabaseAnswer& answer);
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uint64_t MeasureLatency() ORTHANC_OVERRIDE;
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bool HasIntegratedFind() const ORTHANC_OVERRIDE
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{
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return false;
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}
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};
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}
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#endif
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