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/*
* Copyright (C) 2013 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 UniqueIDBDatabase_h
#define UniqueIDBDatabase_h
#if ENABLE(INDEXED_DATABASE) && ENABLE(DATABASE_PROCESS)
#include "IDBIdentifier.h"
#include "UniqueIDBDatabaseIdentifier.h"
#include <WebCore/IDBDatabaseBackend.h>
#include <WebCore/IndexedDB.h>
#include <functional>
#include <wtf/Deque.h>
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class SharedBuffer;
struct IDBDatabaseMetadata;
struct IDBKeyData;
}
namespace WebKit {
class AsyncRequest;
class AsyncTask;
class DatabaseProcessIDBConnection;
class UniqueIDBDatabaseBackingStore;
struct SecurityOriginData;
enum class UniqueIDBDatabaseShutdownType {
NormalShutdown,
DeleteShutdown
};
class UniqueIDBDatabase : public ThreadSafeRefCounted<UniqueIDBDatabase> {
public:
static PassRefPtr<UniqueIDBDatabase> create(const UniqueIDBDatabaseIdentifier& identifier)
{
return adoptRef(new UniqueIDBDatabase(identifier));
}
~UniqueIDBDatabase();
static String calculateAbsoluteDatabaseFilename(const String& absoluteDatabaseDirectory);
const UniqueIDBDatabaseIdentifier& identifier() const { return m_identifier; }
void registerConnection(DatabaseProcessIDBConnection&);
void unregisterConnection(DatabaseProcessIDBConnection&);
void deleteDatabase(std::function<void(bool)> successCallback);
void getOrEstablishIDBDatabaseMetadata(std::function<void(bool, const WebCore::IDBDatabaseMetadata&)> completionCallback);
void openTransaction(const IDBIdentifier& transactionIdentifier, const Vector<int64_t>& objectStoreIDs, WebCore::IndexedDB::TransactionMode, std::function<void(bool)> successCallback);
void beginTransaction(const IDBIdentifier& transactionIdentifier, std::function<void(bool)> successCallback);
void commitTransaction(const IDBIdentifier& transactionIdentifier, std::function<void(bool)> successCallback);
void resetTransaction(const IDBIdentifier& transactionIdentifier, std::function<void(bool)> successCallback);
void rollbackTransaction(const IDBIdentifier& transactionIdentifier, std::function<void(bool)> successCallback);
void changeDatabaseVersion(const IDBIdentifier& transactionIdentifier, uint64_t newVersion, std::function<void(bool)> successCallback);
void createObjectStore(const IDBIdentifier& transactionIdentifier, const WebCore::IDBObjectStoreMetadata&, std::function<void(bool)> successCallback);
void deleteObjectStore(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, std::function<void(bool)> successCallback);
void clearObjectStore(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, std::function<void(bool)> successCallback);
void createIndex(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, const WebCore::IDBIndexMetadata&, std::function<void(bool)> successCallback);
void deleteIndex(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID, std::function<void(bool)> successCallback);
void putRecord(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, const WebCore::IDBKeyData&, const IPC::DataReference& value, int64_t putMode, const Vector<int64_t>& indexIDs, const Vector<Vector<WebCore::IDBKeyData>>& indexKeys, std::function<void(const WebCore::IDBKeyData&, uint32_t, const String&)> callback);
void getRecord(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID, const WebCore::IDBKeyRangeData&, WebCore::IndexedDB::CursorType, std::function<void(const WebCore::IDBGetResult&, uint32_t, const String&)> callback);
void openCursor(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID, WebCore::IndexedDB::CursorDirection, WebCore::IndexedDB::CursorType, WebCore::IDBDatabaseBackend::TaskType, const WebCore::IDBKeyRangeData&, std::function<void(int64_t, const WebCore::IDBKeyData&, const WebCore::IDBKeyData&, PassRefPtr<WebCore::SharedBuffer>, uint32_t, const String&)> callback);
void cursorAdvance(const IDBIdentifier& cursorIdentifier, uint64_t count, std::function<void(const WebCore::IDBKeyData&, const WebCore::IDBKeyData&, PassRefPtr<WebCore::SharedBuffer>, uint32_t, const String&)> callback);
void cursorIterate(const IDBIdentifier& cursorIdentifier, const WebCore::IDBKeyData&, std::function<void(const WebCore::IDBKeyData&, const WebCore::IDBKeyData&, PassRefPtr<WebCore::SharedBuffer>, uint32_t, const String&)> callback);
void count(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID, const WebCore::IDBKeyRangeData&, std::function<void(int64_t, uint32_t, const String&)> callback);
void deleteRange(const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, const WebCore::IDBKeyRangeData&, std::function<void(uint32_t, const String&)> callback);
private:
UniqueIDBDatabase(const UniqueIDBDatabaseIdentifier&);
UniqueIDBDatabaseIdentifier m_identifier;
bool m_inMemory;
String m_databaseRelativeDirectory;
HashSet<RefPtr<DatabaseProcessIDBConnection>> m_connections;
HashMap<uint64_t, RefPtr<AsyncRequest>> m_databaseRequests;
String absoluteDatabaseDirectory() const;
enum class DatabaseTaskType {
Normal,
Shutdown
};
void postDatabaseTask(std::unique_ptr<AsyncTask>, DatabaseTaskType = DatabaseTaskType::Normal);
void shutdown(UniqueIDBDatabaseShutdownType);
// Method that attempts to make legal filenames from all legal database names
String filenameForDatabaseName() const;
// Returns a string that is appropriate for use as a unique filename
String databaseFilenameIdentifier(const SecurityOriginData&) const;
// Returns true if this origin can use the same databases as the given origin.
bool canShareDatabases(const SecurityOriginData&, const SecurityOriginData&) const;
void postTransactionOperation(const IDBIdentifier& transactionIdentifier, std::unique_ptr<AsyncTask>, std::function<void(bool)> successCallback);
// To be called from the database workqueue thread only
void performNextDatabaseTask();
void postMainThreadTask(std::unique_ptr<AsyncTask>, DatabaseTaskType = DatabaseTaskType::Normal);
void openBackingStoreAndReadMetadata(const UniqueIDBDatabaseIdentifier&, const String& databaseDirectory);
void openBackingStoreTransaction(const IDBIdentifier& transactionIdentifier, const Vector<int64_t>& objectStoreIDs, WebCore::IndexedDB::TransactionMode);
void beginBackingStoreTransaction(const IDBIdentifier&);
void commitBackingStoreTransaction(const IDBIdentifier&);
void resetBackingStoreTransaction(const IDBIdentifier&);
void rollbackBackingStoreTransaction(const IDBIdentifier&);
void changeDatabaseVersionInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, uint64_t newVersion);
void createObjectStoreInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, const WebCore::IDBObjectStoreMetadata&);
void deleteObjectStoreInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID);
void clearObjectStoreInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID);
void createIndexInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, const WebCore::IDBIndexMetadata&);
void deleteIndexInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID);
void putRecordInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, const WebCore::IDBObjectStoreMetadata&, const WebCore::IDBKeyData&, const Vector<uint8_t>& value, int64_t putMode, const Vector<int64_t>& indexIDs, const Vector<Vector<WebCore::IDBKeyData>>& indexKeys);
void getRecordFromBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, const WebCore::IDBObjectStoreMetadata&, int64_t indexID, const WebCore::IDBKeyRangeData&, WebCore::IndexedDB::CursorType);
void openCursorInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID, WebCore::IndexedDB::CursorDirection, WebCore::IndexedDB::CursorType, WebCore::IDBDatabaseBackend::TaskType, const WebCore::IDBKeyRangeData&);
void advanceCursorInBackingStore(uint64_t requestID, const IDBIdentifier& cursorIdentifier, uint64_t count);
void iterateCursorInBackingStore(uint64_t requestID, const IDBIdentifier& cursorIdentifier, const WebCore::IDBKeyData&);
void countInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, int64_t indexID, const WebCore::IDBKeyRangeData&);
void deleteRangeInBackingStore(uint64_t requestID, const IDBIdentifier& transactionIdentifier, int64_t objectStoreID, const WebCore::IDBKeyRangeData&);
void shutdownBackingStore(UniqueIDBDatabaseShutdownType, const String& databaseDirectory);
// Callbacks from the database workqueue thread, to be performed on the main thread only
void performNextMainThreadTask();
bool performNextMainThreadTaskWithoutAdoptRef();
void didOpenBackingStoreAndReadMetadata(const WebCore::IDBDatabaseMetadata&, bool success);
void didCompleteTransactionOperation(const IDBIdentifier& transactionIdentifier, bool success);
void didChangeDatabaseVersion(uint64_t requestID, bool success);
void didCreateObjectStore(uint64_t requestID, bool success);
void didDeleteObjectStore(uint64_t requestID, bool success);
void didClearObjectStore(uint64_t requestID, bool success);
void didCreateIndex(uint64_t requestID, bool success);
void didDeleteIndex(uint64_t requestID, bool success);
void didPutRecordInBackingStore(uint64_t requestID, const WebCore::IDBKeyData&, uint32_t errorCode, const String& errorMessage);
void didGetRecordFromBackingStore(uint64_t requestID, const WebCore::IDBGetResult&, uint32_t errorCode, const String& errorMessage);
void didOpenCursorInBackingStore(uint64_t requestID, int64_t cursorID, const WebCore::IDBKeyData&, const WebCore::IDBKeyData&, const Vector<uint8_t>&, uint32_t errorCode, const String& errorMessage);
void didAdvanceCursorInBackingStore(uint64_t requestID, const WebCore::IDBKeyData&, const WebCore::IDBKeyData&, const Vector<uint8_t>&, uint32_t errorCode, const String& errorMessage);
void didIterateCursorInBackingStore(uint64_t requestID, const WebCore::IDBKeyData&, const WebCore::IDBKeyData&, const Vector<uint8_t>&, uint32_t errorCode, const String& errorMessage);
void didCountInBackingStore(uint64_t requestID, int64_t count, uint32_t errorCode, const String& errorMessage);
void didDeleteRangeInBackingStore(uint64_t requestID, uint32_t errorCode, const String& errorMessage);
void didShutdownBackingStore(UniqueIDBDatabaseShutdownType);
void didCompleteBoolRequest(uint64_t requestID, bool success);
void didEstablishTransaction(const IDBIdentifier& transactionIdentifier, bool success);
void didResetTransaction(const IDBIdentifier& transactionIdentifier, bool success);
void resetAllTransactions(const DatabaseProcessIDBConnection&);
void finalizeRollback(const IDBIdentifier& transactionId);
bool m_acceptingNewRequests;
HashMap<const DatabaseProcessIDBConnection*, HashSet<IDBIdentifier>> m_establishedTransactions;
Deque<RefPtr<AsyncRequest>> m_pendingMetadataRequests;
HashMap<IDBIdentifier, RefPtr<AsyncRequest>> m_pendingTransactionRequests;
HashSet<IDBIdentifier> m_pendingTransactionRollbacks;
HashMap<uint64_t, RefPtr<AsyncRequest>> m_pendingDatabaseTasks;
RefPtr<AsyncRequest> m_pendingShutdownTask;
std::unique_ptr<WebCore::IDBDatabaseMetadata> m_metadata;
bool m_didGetMetadataFromBackingStore;
RefPtr<UniqueIDBDatabaseBackingStore> m_backingStore;
Deque<std::unique_ptr<AsyncTask>> m_databaseTasks;
Mutex m_databaseTaskMutex;
Deque<std::unique_ptr<AsyncTask>> m_mainThreadTasks;
Mutex m_mainThreadTaskMutex;
};
} // namespace WebKit
#endif // ENABLE(INDEXED_DATABASE) && ENABLE(DATABASE_PROCESS)
#endif // UniqueIDBDatabase_h
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