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/*
* Copyright (C) 2012 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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 "DatabaseDetails.h"
#include "ExceptionOr.h"
#include <wtf/Assertions.h>
#include <wtf/HashMap.h>
#include <wtf/HashSet.h>
#include <wtf/Lock.h>
#include <wtf/Threading.h>
namespace WebCore {
class Database;
class DatabaseCallback;
class DatabaseContext;
class DatabaseManagerClient;
class DatabaseTaskSynchronizer;
class Exception;
class SecurityOrigin;
class ScriptExecutionContext;
struct SecurityOriginData;
class DatabaseManager {
WTF_MAKE_NONCOPYABLE(DatabaseManager);
friend class WTF::NeverDestroyed<DatabaseManager>;
public:
WEBCORE_EXPORT static DatabaseManager& singleton();
WEBCORE_EXPORT void initialize(const String& databasePath);
WEBCORE_EXPORT void setClient(DatabaseManagerClient*);
bool isAvailable();
WEBCORE_EXPORT void setIsAvailable(bool);
// This gets a DatabaseContext for the specified ScriptExecutionContext.
// If one doesn't already exist, it will create a new one.
Ref<DatabaseContext> databaseContext(ScriptExecutionContext&);
ExceptionOr<Ref<Database>> openDatabase(ScriptExecutionContext&, const String& name, const String& expectedVersion, const String& displayName, unsigned estimatedSize, RefPtr<DatabaseCallback>&&);
WEBCORE_EXPORT bool hasOpenDatabases(ScriptExecutionContext&);
void stopDatabases(ScriptExecutionContext&, DatabaseTaskSynchronizer*);
String fullPathForDatabase(SecurityOrigin&, const String& name, bool createIfDoesNotExist = true);
WEBCORE_EXPORT DatabaseDetails detailsForNameAndOrigin(const String&, SecurityOrigin&);
private:
DatabaseManager() = default;
~DatabaseManager() = delete;
enum OpenAttempt { FirstTryToOpenDatabase, RetryOpenDatabase };
ExceptionOr<Ref<Database>> openDatabaseBackend(ScriptExecutionContext&, const String& name, const String& expectedVersion, const String& displayName, unsigned estimatedSize, bool setVersionInNewDatabase);
ExceptionOr<Ref<Database>> tryToOpenDatabaseBackend(ScriptExecutionContext&, const String& name, const String& expectedVersion, const String& displayName, unsigned estimatedSize, bool setVersionInNewDatabase, OpenAttempt);
class ProposedDatabase;
void addProposedDatabase(ProposedDatabase&);
void removeProposedDatabase(ProposedDatabase&);
static void logErrorMessage(ScriptExecutionContext&, const String& message);
DatabaseManagerClient* m_client { nullptr };
bool m_databaseIsAvailable { true };
Lock m_proposedDatabasesMutex;
HashSet<ProposedDatabase*> m_proposedDatabases;
};
} // namespace WebCore
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