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/*
* Copyright (C) 2011 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. 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 INC. 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.
*/
#ifndef StorageTracker_h
#define StorageTracker_h
#include "SQLiteDatabase.h"
#include <wtf/HashSet.h>
#include <wtf/OwnPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class StorageTask;
class StorageThread;
class SecurityOrigin;
class StorageTrackerClient;
class StorageTracker {
WTF_MAKE_NONCOPYABLE(StorageTracker);
WTF_MAKE_FAST_ALLOCATED;
public:
static void initializeTracker(const String& storagePath, StorageTrackerClient*);
static StorageTracker& tracker();
void setDatabaseDirectoryPath(const String&);
String databaseDirectoryPath() const;
void setOriginDetails(const String& originIdentifier, const String& databaseFile);
void deleteAllOrigins();
void deleteOrigin(SecurityOrigin*);
void deleteOriginWithIdentifier(const String& originIdentifier);
void origins(Vector<RefPtr<SecurityOrigin> >& result);
long long diskUsageForOrigin(SecurityOrigin*);
void cancelDeletingOrigin(const String& originIdentifier);
bool isActive();
double storageDatabaseIdleInterval() { return m_StorageDatabaseIdleInterval; }
void setStorageDatabaseIdleInterval(double interval) { m_StorageDatabaseIdleInterval = interval; }
void syncFileSystemAndTrackerDatabase();
private:
explicit StorageTracker(const String& storagePath);
void internalInitialize();
String trackerDatabasePath();
void openTrackerDatabase(bool createIfDoesNotExist);
void importOriginIdentifiers();
void finishedImportingOriginIdentifiers();
void deleteTrackerFiles();
String databasePathForOrigin(const String& originIdentifier);
bool canDeleteOrigin(const String& originIdentifier);
void willDeleteOrigin(const String& originIdentifier);
void willDeleteAllOrigins();
void originFilePaths(Vector<String>& paths);
void setIsActive(bool);
// Sync to disk on background thread.
void syncDeleteAllOrigins();
void syncDeleteOrigin(const String& originIdentifier);
void syncSetOriginDetails(const String& originIdentifier, const String& databaseFile);
void syncImportOriginIdentifiers();
// Mutex for m_database and m_storageDirectoryPath.
Mutex m_databaseMutex;
SQLiteDatabase m_database;
String m_storageDirectoryPath;
Mutex m_clientMutex;
StorageTrackerClient* m_client;
// Guard for m_originSet and m_originsBeingDeleted.
Mutex m_originSetMutex;
typedef HashSet<String> OriginSet;
OriginSet m_originSet;
OriginSet m_originsBeingDeleted;
OwnPtr<StorageThread> m_thread;
bool m_isActive;
bool m_needsInitialization;
double m_StorageDatabaseIdleInterval;
};
} // namespace WebCore
#endif // StorageTracker_h
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