| /* |
| * 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 { |
| WTF_MAKE_FAST_ALLOCATED; |
| 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&); |
| IDBTransactionInfo(IDBTransactionInfo&&) = default; |
| IDBTransactionInfo& operator=(IDBTransactionInfo&&) = default; |
| |
| 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 = makeUnique<IDBDatabaseInfo>(); |
| if (!decoder.decode(*object)) |
| return false; |
| info.m_originalDatabaseInfo = WTFMove(object); |
| } |
| |
| return true; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(INDEXED_DATABASE) |