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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.
*/
#pragma once
#if ENABLE(INDEXED_DATABASE)
#include "IDBDatabaseInfo.h"
#include "IDBResourceIdentifier.h"
#include "IDBTransactionMode.h"
#include "IndexedDB.h"
#include <wtf/Vector.h>
namespace WebCore {
namespace IDBClient {
class IDBConnectionProxy;
}
namespace IDBServer {
class IDBConnectionToClient;
}
class IDBTransactionInfo {
public:
static IDBTransactionInfo clientTransaction(const IDBClient::IDBConnectionProxy&, const Vector<String>& objectStores, IDBTransactionMode);
static IDBTransactionInfo versionChange(const IDBServer::IDBConnectionToClient&, const IDBDatabaseInfo& originalDatabaseInfo, uint64_t newVersion);
IDBTransactionInfo(const IDBTransactionInfo&);
enum IsolatedCopyTag { IsolatedCopy };
IDBTransactionInfo(const IDBTransactionInfo&, IsolatedCopyTag);
IDBTransactionInfo isolatedCopy() const;
const IDBResourceIdentifier& identifier() const { return m_identifier; }
IDBTransactionMode mode() const { return m_mode; }
uint64_t newVersion() const { return m_newVersion; }
const Vector<String>& objectStores() const { return m_objectStores; }
IDBDatabaseInfo* originalDatabaseInfo() const { return m_originalDatabaseInfo.get(); }
WEBCORE_EXPORT IDBTransactionInfo();
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static bool decode(Decoder&, IDBTransactionInfo&);
#if !LOG_DISABLED
String loggingString() const;
#endif
private:
IDBTransactionInfo(const IDBResourceIdentifier&);
static void isolatedCopy(const IDBTransactionInfo& source, IDBTransactionInfo& destination);
IDBResourceIdentifier m_identifier;
IDBTransactionMode m_mode { IDBTransactionMode::Readonly };
uint64_t m_newVersion { 0 };
Vector<String> m_objectStores;
std::unique_ptr<IDBDatabaseInfo> m_originalDatabaseInfo;
};
template<class Encoder>
void IDBTransactionInfo::encode(Encoder& encoder) const
{
encoder << m_identifier << m_newVersion << m_objectStores;
encoder.encodeEnum(m_mode);
encoder << !!m_originalDatabaseInfo;
if (m_originalDatabaseInfo)
encoder << *m_originalDatabaseInfo;
}
template<class Decoder>
bool IDBTransactionInfo::decode(Decoder& decoder, IDBTransactionInfo& info)
{
if (!decoder.decode(info.m_identifier))
return false;
if (!decoder.decode(info.m_newVersion))
return false;
if (!decoder.decode(info.m_objectStores))
return false;
if (!decoder.decodeEnum(info.m_mode))
return false;
bool hasObject;
if (!decoder.decode(hasObject))
return false;
if (hasObject) {
std::unique_ptr<IDBDatabaseInfo> object = std::make_unique<IDBDatabaseInfo>();
if (!decoder.decode(*object))
return false;
info.m_originalDatabaseInfo = WTFMove(object);
}
return true;
}
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
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