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/*
* Copyright (C) 2007, 2008, 2013, 2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ExceptionOr.h"
#include "SQLiteDatabase.h"
#include <wtf/Deque.h>
#include <wtf/Lock.h>
namespace WebCore {
class DatabaseCallback;
class DatabaseContext;
class DatabaseDetails;
class DatabaseThread;
class ScriptExecutionContext;
class SecurityOrigin;
class SQLTransaction;
class SQLTransactionBackend;
class SQLTransactionCallback;
class SQLTransactionCoordinator;
class SQLTransactionErrorCallback;
class SQLTransactionWrapper;
class VoidCallback;
struct SecurityOriginData;
using DatabaseGUID = int;
class Database : public ThreadSafeRefCounted<Database> {
public:
~Database();
ExceptionOr<void> openAndVerifyVersion(bool setVersionInNewDatabase);
void close();
void interrupt();
bool opened() const { return m_opened; }
bool isNew() const { return m_new; }
unsigned long long maximumSize();
void scheduleTransactionStep(SQLTransaction&);
void inProgressTransactionCompleted();
bool hasPendingTransaction();
bool hasPendingCreationEvent() const { return m_hasPendingCreationEvent; }
void setHasPendingCreationEvent(bool value) { m_hasPendingCreationEvent = value; }
void didCommitWriteTransaction();
bool didExceedQuota();
SQLTransactionCoordinator* transactionCoordinator();
// Direct support for the DOM API
String version() const;
void changeVersion(const String& oldVersion, const String& newVersion, RefPtr<SQLTransactionCallback>&&, RefPtr<SQLTransactionErrorCallback>&&, RefPtr<VoidCallback>&& successCallback);
void transaction(RefPtr<SQLTransactionCallback>&&, RefPtr<SQLTransactionErrorCallback>&&, RefPtr<VoidCallback>&& successCallback);
void readTransaction(RefPtr<SQLTransactionCallback>&&, RefPtr<SQLTransactionErrorCallback>&&, RefPtr<VoidCallback>&& successCallback);
// Internal engine support
String stringIdentifier() const;
String displayName() const;
unsigned estimatedSize() const;
String fileName() const;
DatabaseDetails details() const;
SQLiteDatabase& sqliteDatabase() { return m_sqliteDatabase; }
void disableAuthorizer();
void enableAuthorizer();
void setAuthorizerPermissions(int);
bool lastActionChangedDatabase();
bool lastActionWasInsert();
void resetDeletes();
bool hadDeletes();
void resetAuthorizer();
DatabaseContext& databaseContext() { return m_databaseContext; }
DatabaseThread& databaseThread();
ScriptExecutionContext& scriptExecutionContext() { return m_scriptExecutionContext; }
void logErrorMessage(const String& message);
Vector<String> tableNames();
SecurityOriginData securityOrigin();
void markAsDeletedAndClose();
bool deleted() const { return m_deleted; }
void scheduleTransactionCallback(SQLTransaction*);
void incrementalVacuumIfNeeded();
// Called from DatabaseTask
ExceptionOr<void> performOpenAndVerify(bool shouldSetVersionInNewDatabase);
Vector<String> performGetTableNames();
// Called from DatabaseTask and DatabaseThread
void performClose();
private:
Database(DatabaseContext&, const String& name, const String& expectedVersion, const String& displayName, unsigned estimatedSize);
void closeDatabase();
bool getVersionFromDatabase(String& version, bool shouldCacheVersion = true);
bool setVersionInDatabase(const String& version, bool shouldCacheVersion = true);
void setExpectedVersion(const String&);
const String& expectedVersion() const { return m_expectedVersion; }
String getCachedVersion() const;
void setCachedVersion(const String&);
bool getActualVersionForTransaction(String& version);
void scheduleTransaction();
void runTransaction(RefPtr<SQLTransactionCallback>&&, RefPtr<SQLTransactionErrorCallback>&&, RefPtr<VoidCallback>&& successCallback, RefPtr<SQLTransactionWrapper>&&, bool readOnly);
#if !LOG_DISABLED || !ERROR_DISABLED
String databaseDebugName() const;
#endif
Ref<ScriptExecutionContext> m_scriptExecutionContext;
Ref<SecurityOrigin> m_contextThreadSecurityOrigin;
Ref<SecurityOrigin> m_databaseThreadSecurityOrigin;
Ref<DatabaseContext> m_databaseContext;
bool m_deleted { false };
bool m_hasPendingCreationEvent { false };
String m_name;
String m_expectedVersion;
String m_displayName;
unsigned m_estimatedSize;
String m_filename;
DatabaseGUID m_guid;
bool m_opened { false };
bool m_new { false };
SQLiteDatabase m_sqliteDatabase;
Ref<DatabaseAuthorizer> m_databaseAuthorizer;
Deque<Ref<SQLTransaction>> m_transactionQueue;
Lock m_transactionInProgressMutex;
bool m_transactionInProgress { false };
bool m_isTransactionQueueEnabled { true };
friend class ChangeVersionWrapper;
friend class DatabaseManager;
friend class SQLTransaction;
friend class SQLTransactionBackend;
};
} // namespace WebCore
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