| /* |
| * Copyright (C) 2018 Sony Interactive Entertainment Inc. |
| * |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "NetworkCacheData.h" |
| |
| namespace WebKit { |
| namespace NetworkCache { |
| |
| Data::Data(const uint8_t* data, size_t size) |
| : m_buffer(Box<Variant<Vector<uint8_t>, FileSystem::MappedFileData>>::create(Vector<uint8_t>(size))) |
| , m_size(size) |
| { |
| memcpy(WTF::get<Vector<uint8_t>>(*m_buffer).data(), data, size); |
| } |
| |
| Data::Data(Variant<Vector<uint8_t>, FileSystem::MappedFileData>&& data) |
| : m_buffer(Box<Variant<Vector<uint8_t>, FileSystem::MappedFileData>>::create(WTFMove(data))) |
| , m_isMap(WTF::holds_alternative<FileSystem::MappedFileData>(*m_buffer)) |
| { |
| m_size = WTF::switchOn(*m_buffer, |
| [](const Vector<uint8_t>& buffer) -> size_t { return buffer.size(); }, |
| [](const FileSystem::MappedFileData& mappedFile) -> size_t { return mappedFile.size(); } |
| ); |
| } |
| |
| Data Data::empty() |
| { |
| Vector<uint8_t> buffer; |
| return { WTFMove(buffer) }; |
| } |
| |
| const uint8_t* Data::data() const |
| { |
| if (!m_buffer) |
| return nullptr; |
| |
| return WTF::switchOn(*m_buffer, |
| [](const Vector<uint8_t>& buffer) -> const uint8_t* { return buffer.data(); }, |
| [](const FileSystem::MappedFileData& mappedFile) -> const uint8_t* { return static_cast<const uint8_t*>(mappedFile.data()); } |
| ); |
| } |
| |
| bool Data::isNull() const |
| { |
| return !m_buffer; |
| } |
| |
| bool Data::apply(const Function<bool(const uint8_t*, size_t)>& applier) const |
| { |
| if (isEmpty()) |
| return false; |
| |
| return applier(reinterpret_cast<const uint8_t*>(data()), size()); |
| } |
| |
| Data Data::subrange(size_t offset, size_t size) const |
| { |
| if (!m_buffer) |
| return { }; |
| |
| return { data() + offset, size }; |
| } |
| |
| Data concatenate(const Data& a, const Data& b) |
| { |
| if (a.isNull()) |
| return b; |
| if (b.isNull()) |
| return a; |
| |
| Vector<uint8_t> buffer(a.size() + b.size()); |
| memcpy(buffer.data(), a.data(), a.size()); |
| memcpy(buffer.data() + a.size(), b.data(), b.size()); |
| return Data(WTFMove(buffer)); |
| } |
| |
| Data Data::adoptMap(FileSystem::MappedFileData&& mappedFile, FileSystem::PlatformFileHandle fd) |
| { |
| ASSERT(mappedFile.data()); |
| FileSystem::closeFile(fd); |
| |
| return { WTFMove(mappedFile) }; |
| } |
| |
| } // namespace NetworkCache |
| } // namespace WebKit |