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/*
* Copyright (C) 2013, 2016 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.
*/
#pragma once
#include "IDBError.h"
#include "IDBIndexIdentifier.h"
#include "IDBObjectStoreIdentifier.h"
#include "IDBResourceIdentifier.h"
#include "IDBTransactionInfo.h"
#include "IndexedDB.h"
#include <wtf/CheckedPtr.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/RobinHoodHashSet.h>
#include <wtf/TZoneMalloc.h>
namespace WebCore {
class IDBCursorInfo;
class SQLiteDatabase;
class SQLiteTransaction;
struct IDBKeyRangeData;
namespace IDBServer {
class SQLiteIDBBackingStore;
class SQLiteIDBCursor;
class SQLiteIDBTransaction : public CanMakeThreadSafeCheckedPtr<SQLiteIDBTransaction> {
WTF_MAKE_TZONE_ALLOCATED(SQLiteIDBTransaction);
WTF_MAKE_NONCOPYABLE(SQLiteIDBTransaction);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(SQLiteIDBTransaction);
public:
SQLiteIDBTransaction(SQLiteIDBBackingStore&, const IDBTransactionInfo&);
~SQLiteIDBTransaction();
const IDBResourceIdentifier& transactionIdentifier() const { return m_info.identifier(); }
IDBError begin(SQLiteDatabase&);
IDBError commit();
IDBError abort();
std::unique_ptr<SQLiteIDBCursor> maybeOpenBackingStoreCursor(IDBObjectStoreIdentifier, std::optional<IDBIndexIdentifier>, const IDBKeyRangeData&);
SQLiteIDBCursor* maybeOpenCursor(const IDBCursorInfo&);
void closeCursor(SQLiteIDBCursor&);
void notifyCursorsOfChanges(IDBObjectStoreIdentifier);
IDBTransactionMode mode() const { return m_info.mode(); }
IDBTransactionDurability durability() const { return m_info.durability(); }
bool inProgress() const;
bool inProgressOrReadOnly() const;
SQLiteDatabase* sqliteDatabase() const;
SQLiteTransaction* sqliteTransaction() const { return m_sqliteTransaction.get(); }
SQLiteIDBBackingStore& backingStore() { return m_backingStore.get(); }
void addBlobFile(const String& temporaryPath, const String& storedFilename);
void addRemovedBlobFile(const String& removedFilename);
private:
void clearCursors();
void reset();
void moveBlobFilesIfNecessary();
void deleteBlobFilesIfNecessary();
bool isReadOnly() const { return mode() == IDBTransactionMode::Readonly; }
IDBTransactionInfo m_info;
CheckedRef<SQLiteIDBBackingStore> m_backingStore;
CheckedPtr<SQLiteDatabase> m_sqliteDatabase;
std::unique_ptr<SQLiteTransaction> m_sqliteTransaction;
HashMap<IDBResourceIdentifier, std::unique_ptr<SQLiteIDBCursor>> m_cursors;
HashSet<SQLiteIDBCursor*> m_backingStoreCursors;
Vector<std::pair<String, String>> m_blobTemporaryAndStoredFilenames;
MemoryCompactRobinHoodHashSet<String> m_blobRemovedFilenames;
};
} // namespace IDBServer
} // namespace WebCore
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