| /* |
| * 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. |
| */ |
| |
| #ifndef NetworkCacheIOChannel_h |
| #define NetworkCacheIOChannel_h |
| |
| #include "NetworkCacheData.h" |
| #include <wtf/Function.h> |
| #include <wtf/ThreadSafeRefCounted.h> |
| #include <wtf/WorkQueue.h> |
| #include <wtf/text/WTFString.h> |
| |
| #if USE(SOUP) |
| #include <wtf/glib/GRefPtr.h> |
| #endif |
| |
| namespace WebKit { |
| namespace NetworkCache { |
| |
| class IOChannel : public ThreadSafeRefCounted<IOChannel> { |
| public: |
| enum class Type { Read, Write, Create }; |
| static Ref<IOChannel> open(const String& file, Type type, Optional<WorkQueue::QOS> qos = { }) { return adoptRef(*new IOChannel(file, type, qos)); } |
| |
| // Using nullptr as queue submits the result to the main queue. |
| // FIXME: We should add WorkQueue::main() instead. |
| void read(size_t offset, size_t, WorkQueue*, Function<void (Data&, int error)>&&); |
| void write(size_t offset, const Data&, WorkQueue*, Function<void (int error)>&&); |
| |
| const String& path() const { return m_path; } |
| Type type() const { return m_type; } |
| |
| #if !USE(SOUP) |
| bool isOpened() const { return FileSystem::isHandleValid(m_fileDescriptor); } |
| #else |
| bool isOpened() const { return true; } |
| #endif |
| |
| ~IOChannel(); |
| |
| private: |
| IOChannel(const String& filePath, IOChannel::Type, Optional<WorkQueue::QOS>); |
| |
| #if USE(SOUP) |
| void readSyncInThread(size_t offset, size_t, WorkQueue*, Function<void (Data&, int error)>&&); |
| #endif |
| |
| String m_path; |
| Type m_type; |
| |
| #if !USE(SOUP) |
| FileSystem::PlatformFileHandle m_fileDescriptor { FileSystem::invalidPlatformFileHandle }; |
| #endif |
| std::atomic<bool> m_wasDeleted { false }; // Try to narrow down a crash, https://bugs.webkit.org/show_bug.cgi?id=165659 |
| #if PLATFORM(COCOA) |
| OSObjectPtr<dispatch_io_t> m_dispatchIO; |
| #endif |
| #if USE(SOUP) |
| GRefPtr<GInputStream> m_inputStream; |
| GRefPtr<GOutputStream> m_outputStream; |
| GRefPtr<GFileIOStream> m_ioStream; |
| #endif |
| }; |
| |
| } |
| } |
| |
| #endif |