| /* |
| * Copyright (C) 2014 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 "IDBCursorRecord.h" |
| #include "IDBKey.h" |
| #include "IDBKeyData.h" |
| #include "IDBKeyPath.h" |
| #include "IDBValue.h" |
| #include "SharedBuffer.h" |
| #include <wtf/IsoMalloc.h> |
| |
| namespace WebCore { |
| |
| class IDBGetResult { |
| WTF_MAKE_ISO_ALLOCATED_EXPORT(IDBGetResult, WEBCORE_EXPORT); |
| public: |
| IDBGetResult() |
| : m_isDefined(false) |
| { |
| } |
| |
| IDBGetResult(const IDBKeyData& keyData) |
| : m_keyData(keyData) |
| { |
| } |
| |
| IDBGetResult(const IDBKeyData& keyData, const IDBKeyData& primaryKeyData) |
| : m_keyData(keyData) |
| , m_primaryKeyData(primaryKeyData) |
| { |
| } |
| |
| IDBGetResult(const IDBKeyData& keyData, const ThreadSafeDataBuffer& buffer, const std::optional<IDBKeyPath>& keyPath) |
| : m_value(buffer) |
| , m_keyData(keyData) |
| , m_keyPath(keyPath) |
| { |
| } |
| |
| IDBGetResult(const IDBKeyData& keyData, IDBValue&& value, const std::optional<IDBKeyPath>& keyPath) |
| : m_value(WTFMove(value)) |
| , m_keyData(keyData) |
| , m_keyPath(keyPath) |
| { |
| } |
| |
| IDBGetResult(const IDBKeyData& keyData, const IDBKeyData& primaryKeyData, IDBValue&& value, const std::optional<IDBKeyPath>& keyPath) |
| : m_value(WTFMove(value)) |
| , m_keyData(keyData) |
| , m_primaryKeyData(primaryKeyData) |
| , m_keyPath(keyPath) |
| { |
| } |
| |
| IDBGetResult(const IDBKeyData& keyData, const IDBKeyData& primaryKeyData, IDBValue&& value, const std::optional<IDBKeyPath>& keyPath, Vector<IDBCursorRecord>&& prefetechedRecords) |
| : m_value(WTFMove(value)) |
| , m_keyData(keyData) |
| , m_primaryKeyData(primaryKeyData) |
| , m_keyPath(keyPath) |
| , m_prefetchedRecords(WTFMove(prefetechedRecords)) |
| { |
| } |
| |
| enum IsolatedCopyTag { IsolatedCopy }; |
| IDBGetResult(const IDBGetResult&, IsolatedCopyTag); |
| |
| IDBGetResult isolatedCopy() const; |
| |
| void setValue(IDBValue&&); |
| |
| const IDBValue& value() const { return m_value; } |
| const IDBKeyData& keyData() const { return m_keyData; } |
| const IDBKeyData& primaryKeyData() const { return m_primaryKeyData; } |
| const std::optional<IDBKeyPath>& keyPath() const { return m_keyPath; } |
| const Vector<IDBCursorRecord>& prefetchedRecords() const { return m_prefetchedRecords; } |
| bool isDefined() const { return m_isDefined; } |
| |
| template<class Encoder> void encode(Encoder&) const; |
| template<class Decoder> static WARN_UNUSED_RETURN bool decode(Decoder&, IDBGetResult&); |
| |
| private: |
| static void isolatedCopy(const IDBGetResult& source, IDBGetResult& destination); |
| |
| IDBValue m_value; |
| IDBKeyData m_keyData; |
| IDBKeyData m_primaryKeyData; |
| std::optional<IDBKeyPath> m_keyPath; |
| Vector<IDBCursorRecord> m_prefetchedRecords; |
| bool m_isDefined { true }; |
| }; |
| |
| template<class Encoder> |
| void IDBGetResult::encode(Encoder& encoder) const |
| { |
| encoder << m_keyData << m_primaryKeyData << m_keyPath << m_isDefined << m_value << m_prefetchedRecords; |
| } |
| |
| template<class Decoder> |
| bool IDBGetResult::decode(Decoder& decoder, IDBGetResult& result) |
| { |
| std::optional<IDBKeyData> keyData; |
| decoder >> keyData; |
| if (!keyData) |
| return false; |
| result.m_keyData = WTFMove(*keyData); |
| |
| std::optional<IDBKeyData> primaryKeyData; |
| decoder >> primaryKeyData; |
| if (!primaryKeyData) |
| return false; |
| result.m_primaryKeyData = WTFMove(*primaryKeyData); |
| |
| if (!decoder.decode(result.m_keyPath)) |
| return false; |
| |
| if (!decoder.decode(result.m_isDefined)) |
| return false; |
| |
| std::optional<IDBValue> value; |
| decoder >> value; |
| if (!value) |
| return false; |
| result.m_value = WTFMove(*value); |
| |
| std::optional<Vector<IDBCursorRecord>> prefetchedRecords; |
| decoder >> prefetchedRecords; |
| if (!prefetchedRecords) |
| return false; |
| result.m_prefetchedRecords = WTFMove(*prefetchedRecords); |
| |
| return true; |
| } |
| |
| } // namespace WebCore |