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/*
* Copyright (C) 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.
*
* 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 IDBServer_h
#define IDBServer_h
#if ENABLE(INDEXED_DATABASE)
#include "CrossThreadTask.h"
#include "IDBConnectionToClient.h"
#include "IDBDatabaseIdentifier.h"
#include "UniqueIDBDatabase.h"
#include "UniqueIDBDatabaseConnection.h"
#include <wtf/HashMap.h>
#include <wtf/Lock.h>
#include <wtf/MessageQueue.h>
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class CrossThreadTask;
class IDBCursorInfo;
class IDBRequestData;
namespace IDBServer {
class IDBServer : public RefCounted<IDBServer> {
public:
static Ref<IDBServer> create();
WEBCORE_EXPORT static Ref<IDBServer> create(const String& databaseDirectoryPath);
WEBCORE_EXPORT void registerConnection(IDBConnectionToClient&);
WEBCORE_EXPORT void unregisterConnection(IDBConnectionToClient&);
// Operations requested by the client.
WEBCORE_EXPORT void openDatabase(const IDBRequestData&);
WEBCORE_EXPORT void deleteDatabase(const IDBRequestData&);
WEBCORE_EXPORT void abortTransaction(const IDBResourceIdentifier&);
WEBCORE_EXPORT void commitTransaction(const IDBResourceIdentifier&);
WEBCORE_EXPORT void didFinishHandlingVersionChangeTransaction(const IDBResourceIdentifier&);
WEBCORE_EXPORT void createObjectStore(const IDBRequestData&, const IDBObjectStoreInfo&);
WEBCORE_EXPORT void deleteObjectStore(const IDBRequestData&, const String& objectStoreName);
WEBCORE_EXPORT void clearObjectStore(const IDBRequestData&, uint64_t objectStoreIdentifier);
WEBCORE_EXPORT void createIndex(const IDBRequestData&, const IDBIndexInfo&);
WEBCORE_EXPORT void deleteIndex(const IDBRequestData&, uint64_t objectStoreIdentifier, const String& indexName);
WEBCORE_EXPORT void putOrAdd(const IDBRequestData&, const IDBKeyData&, const ThreadSafeDataBuffer& valueData, IndexedDB::ObjectStoreOverwriteMode);
WEBCORE_EXPORT void getRecord(const IDBRequestData&, const IDBKeyRangeData&);
WEBCORE_EXPORT void getCount(const IDBRequestData&, const IDBKeyRangeData&);
WEBCORE_EXPORT void deleteRecord(const IDBRequestData&, const IDBKeyRangeData&);
WEBCORE_EXPORT void openCursor(const IDBRequestData&, const IDBCursorInfo&);
WEBCORE_EXPORT void iterateCursor(const IDBRequestData&, const IDBKeyData&, unsigned long count);
WEBCORE_EXPORT void establishTransaction(uint64_t databaseConnectionIdentifier, const IDBTransactionInfo&);
WEBCORE_EXPORT void databaseConnectionClosed(uint64_t databaseConnectionIdentifier);
WEBCORE_EXPORT void abortOpenAndUpgradeNeeded(uint64_t databaseConnectionIdentifier, const IDBResourceIdentifier& transactionIdentifier);
WEBCORE_EXPORT void didFireVersionChangeEvent(uint64_t databaseConnectionIdentifier, const IDBResourceIdentifier& requestIdentifier);
void postDatabaseTask(std::unique_ptr<CrossThreadTask>&&);
void postDatabaseTaskReply(std::unique_ptr<CrossThreadTask>&&);
void registerDatabaseConnection(UniqueIDBDatabaseConnection&);
void unregisterDatabaseConnection(UniqueIDBDatabaseConnection&);
void registerTransaction(UniqueIDBDatabaseTransaction&);
void unregisterTransaction(UniqueIDBDatabaseTransaction&);
void closeUniqueIDBDatabase(UniqueIDBDatabase&);
std::unique_ptr<IDBBackingStore> createBackingStore(const IDBDatabaseIdentifier&);
private:
IDBServer();
IDBServer(const String& databaseDirectoryPath);
UniqueIDBDatabase& getOrCreateUniqueIDBDatabase(const IDBDatabaseIdentifier&);
static void databaseThreadEntry(void*);
void databaseRunLoop();
void handleTaskRepliesOnMainThread();
HashMap<uint64_t, RefPtr<IDBConnectionToClient>> m_connectionMap;
HashMap<IDBDatabaseIdentifier, RefPtr<UniqueIDBDatabase>> m_uniqueIDBDatabaseMap;
ThreadIdentifier m_threadID { 0 };
Lock m_databaseThreadCreationLock;
Lock m_mainThreadReplyLock;
bool m_mainThreadReplyScheduled { false };
MessageQueue<CrossThreadTask> m_databaseQueue;
MessageQueue<CrossThreadTask> m_databaseReplyQueue;
HashMap<uint64_t, UniqueIDBDatabaseConnection*> m_databaseConnections;
HashMap<IDBResourceIdentifier, UniqueIDBDatabaseTransaction*> m_transactions;
String m_databaseDirectoryPath;
};
} // namespace IDBServer
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
#endif // IDBServer_h
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