| /* |
| * Copyright (C) 2015 Igalia S.L |
| * |
| * 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" |
| |
| #include "SharedMemory.h" |
| #include <fcntl.h> |
| #include <sys/mman.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #if USE(GLIB) && !PLATFORM(WIN) |
| #include <gio/gfiledescriptorbased.h> |
| #endif |
| |
| namespace WebKit { |
| namespace NetworkCache { |
| |
| Data::Data(const uint8_t* data, size_t size) |
| : m_size(size) |
| { |
| uint8_t* copiedData = static_cast<uint8_t*>(fastMalloc(size)); |
| memcpy(copiedData, data, size); |
| m_buffer = adoptGRef(soup_buffer_new_with_owner(copiedData, size, copiedData, fastFree)); |
| } |
| |
| Data::Data(GRefPtr<SoupBuffer>&& buffer, int fd) |
| : m_buffer(buffer) |
| , m_fileDescriptor(fd) |
| , m_size(buffer ? buffer->length : 0) |
| , m_isMap(m_size && fd != -1) |
| { |
| } |
| |
| Data Data::empty() |
| { |
| GRefPtr<SoupBuffer> buffer = adoptGRef(soup_buffer_new(SOUP_MEMORY_TAKE, nullptr, 0)); |
| return { WTFMove(buffer) }; |
| } |
| |
| const uint8_t* Data::data() const |
| { |
| return m_buffer ? reinterpret_cast<const uint8_t*>(m_buffer->data) : nullptr; |
| } |
| |
| bool Data::isNull() const |
| { |
| return !m_buffer; |
| } |
| |
| bool Data::apply(const Function<bool (const uint8_t*, size_t)>& applier) const |
| { |
| if (!m_size) |
| return false; |
| |
| return applier(reinterpret_cast<const uint8_t*>(m_buffer->data), m_buffer->length); |
| } |
| |
| Data Data::subrange(size_t offset, size_t size) const |
| { |
| if (!m_buffer) |
| return { }; |
| |
| GRefPtr<SoupBuffer> subBuffer = adoptGRef(soup_buffer_new_subbuffer(m_buffer.get(), offset, size)); |
| return { WTFMove(subBuffer) }; |
| } |
| |
| Data concatenate(const Data& a, const Data& b) |
| { |
| if (a.isNull()) |
| return b; |
| if (b.isNull()) |
| return a; |
| |
| size_t size = a.size() + b.size(); |
| uint8_t* data = static_cast<uint8_t*>(fastMalloc(size)); |
| memcpy(data, a.soupBuffer()->data, a.soupBuffer()->length); |
| memcpy(data + a.soupBuffer()->length, b.soupBuffer()->data, b.soupBuffer()->length); |
| GRefPtr<SoupBuffer> buffer = adoptGRef(soup_buffer_new_with_owner(data, size, data, fastFree)); |
| return { WTFMove(buffer) }; |
| } |
| |
| struct MapWrapper { |
| ~MapWrapper() |
| { |
| munmap(map, size); |
| close(fileDescriptor); |
| } |
| |
| void* map; |
| size_t size; |
| int fileDescriptor; |
| }; |
| |
| static void deleteMapWrapper(MapWrapper* wrapper) |
| { |
| delete wrapper; |
| } |
| |
| Data Data::adoptMap(void* map, size_t size, int fd) |
| { |
| ASSERT(map); |
| ASSERT(map != MAP_FAILED); |
| MapWrapper* wrapper = new MapWrapper { map, size, fd }; |
| GRefPtr<SoupBuffer> buffer = adoptGRef(soup_buffer_new_with_owner(map, size, wrapper, reinterpret_cast<GDestroyNotify>(deleteMapWrapper))); |
| return { WTFMove(buffer), fd }; |
| } |
| |
| #if USE(GLIB) && !PLATFORM(WIN) |
| Data adoptAndMapFile(GFileIOStream* stream, size_t offset, size_t size) |
| { |
| GInputStream* inputStream = g_io_stream_get_input_stream(G_IO_STREAM(stream)); |
| int fd = g_file_descriptor_based_get_fd(G_FILE_DESCRIPTOR_BASED(inputStream)); |
| return adoptAndMapFile(fd, offset, size); |
| } |
| #endif |
| |
| RefPtr<SharedMemory> Data::tryCreateSharedMemory() const |
| { |
| if (isNull() || !isMap()) |
| return nullptr; |
| |
| return SharedMemory::wrapMap(const_cast<char*>(m_buffer->data), m_buffer->length, m_fileDescriptor); |
| } |
| |
| } // namespace NetworkCache |
| } // namespace WebKit |