forked from qt-creator/qt-creator
bca41fa9f6
Initializing the database is not cheap so it is better to initializing it only once. We simply check if the database file already exists and then skip the initializing step. Task-number: QTCREATORBUG-21174 Change-Id: I151090c5081c009f7913a30517065be2833791d8 Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#pragma once
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#include "sqlitedatabasebackend.h"
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#include "sqliteglobal.h"
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#include "sqlitetable.h"
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#include "sqlitetransaction.h"
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#include <utils/smallstring.h>
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#include <chrono>
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#include <mutex>
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#include <vector>
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namespace Sqlite {
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using namespace std::chrono_literals;
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class ReadStatement;
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class WriteStatement;
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class SQLITE_EXPORT Database final : public TransactionInterface
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{
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template <typename Database>
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friend class Statement;
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friend class Backend;
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public:
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using MutexType = std::mutex;
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using ReadStatement = Sqlite::ReadStatement;
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using WriteStatement = Sqlite::WriteStatement;
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Database();
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Database(Utils::PathString &&databaseFilePath,
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JournalMode journalMode);
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Database(Utils::PathString &&databaseFilePath,
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std::chrono::milliseconds busyTimeout = 1000ms,
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JournalMode journalMode=JournalMode::Wal);
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~Database();
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Database(const Database &) = delete;
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Database &operator=(const Database &) = delete;
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void open();
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void open(Utils::PathString &&databaseFilePath);
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void close();
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bool isInitialized() const;
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void setIsInitialized(bool isInitialized);
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bool isOpen() const;
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Table &addTable();
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const std::vector<Table> &tables() const;
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void setDatabaseFilePath(Utils::PathString &&databaseFilePath);
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const Utils::PathString &databaseFilePath() const;
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void setJournalMode(JournalMode journalMode);
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JournalMode journalMode() const;
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void setOpenMode(OpenMode openMode);
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OpenMode openMode() const;
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void execute(Utils::SmallStringView sqlStatement);
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DatabaseBackend &backend();
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int64_t lastInsertedRowId() const
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{
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return m_databaseBackend.lastInsertedRowId();
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}
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void setLastInsertedRowId(int64_t rowId)
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{
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m_databaseBackend.setLastInsertedRowId(rowId);
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}
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int changesCount()
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{
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return m_databaseBackend.changesCount();
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}
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int totalChangesCount()
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{
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return m_databaseBackend.totalChangesCount();
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}
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private:
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void deferredBegin();
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void immediateBegin();
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void exclusiveBegin();
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void commit();
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void rollback();
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void lock();
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void unlock();
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void initializeTables();
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void registerTransactionStatements();
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void deleteTransactionStatements();
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std::mutex &databaseMutex() { return m_databaseMutex; }
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class Statements;
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private:
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Utils::PathString m_databaseFilePath;
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DatabaseBackend m_databaseBackend;
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std::vector<Table> m_sqliteTables;
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std::mutex m_databaseMutex;
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std::unique_ptr<Statements> m_statements;
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std::chrono::milliseconds m_busyTimeout;
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JournalMode m_journalMode = JournalMode::Wal;
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OpenMode m_openMode = OpenMode::ReadWrite;
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bool m_isOpen = false;
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bool m_isInitialized = false;
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};
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} // namespace Sqlite
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