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/*
* 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 "NetworkCacheIOChannel.h"
#include "NetworkCacheFileSystem.h"
#include <wtf/MainThread.h>
#include <wtf/RunLoop.h>
#include <wtf/glib/GUniquePtr.h>
#include <wtf/glib/RunLoopSourcePriority.h>
namespace WebKit {
namespace NetworkCache {
IOChannel::IOChannel(const String& filePath, Type type, std::optional<WorkQueue::QOS> qos)
{
auto path = FileSystem::fileSystemRepresentation(filePath);
GRefPtr<GFile> file = adoptGRef(g_file_new_for_path(path.data()));
Locker locker { m_lock };
switch (type) {
case Type::Create: {
g_file_delete(file.get(), nullptr, nullptr);
m_outputStream = adoptGRef(G_OUTPUT_STREAM(g_file_create(file.get(), static_cast<GFileCreateFlags>(G_FILE_CREATE_PRIVATE), nullptr, nullptr)));
#if !HAVE(STAT_BIRTHTIME)
GUniquePtr<char> birthtimeString(g_strdup_printf("%" G_GUINT64_FORMAT, WallTime::now().secondsSinceEpoch().secondsAs<uint64_t>()));
g_file_set_attribute_string(file.get(), "xattr::birthtime", birthtimeString.get(), G_FILE_QUERY_INFO_NONE, nullptr, nullptr);
#endif
m_qos = qos.value_or(WorkQueue::QOS::Background);
break;
}
case Type::Write: {
auto ioStream = adoptGRef(g_file_open_readwrite(file.get(), nullptr, nullptr));
m_outputStream = g_io_stream_get_output_stream(G_IO_STREAM(ioStream.get()));
m_qos = qos.value_or(WorkQueue::QOS::Background);
break;
}
case Type::Read:
m_inputStream = adoptGRef(G_INPUT_STREAM(g_file_read(file.get(), nullptr, nullptr)));
m_qos = qos.value_or(WorkQueue::QOS::Default);
break;
}
}
IOChannel::~IOChannel()
{
RELEASE_ASSERT(!m_wasDeleted.exchange(true));
}
void IOChannel::read(size_t offset, size_t size, Ref<WTF::WorkQueueBase>&& queue, Function<void(Data&&, int error)>&& completionHandler)
{
Locker locker { m_lock };
if (!m_inputStream) {
queue->dispatch([protectedThis = Ref { *this }, completionHandler = WTFMove(completionHandler)] {
Data data;
completionHandler(WTFMove(data), -1);
});
return;
}
Thread::create("IOChannel::read"_s, [this, protectedThis = Ref { *this }, offset, size, queue = Ref { queue }, completionHandler = WTFMove(completionHandler)]() mutable {
Locker locker { m_lock };
GRefPtr<GFileInfo> info = adoptGRef(g_file_input_stream_query_info(G_FILE_INPUT_STREAM(m_inputStream.get()), G_FILE_ATTRIBUTE_STANDARD_SIZE, nullptr, nullptr));
if (info) {
auto fileSize = g_file_info_get_size(info.get());
if (fileSize && static_cast<guint64>(fileSize) <= std::numeric_limits<size_t>::max()) {
if (G_IS_SEEKABLE(m_inputStream.get()) && g_seekable_can_seek(G_SEEKABLE(m_inputStream.get())))
g_seekable_seek(G_SEEKABLE(m_inputStream.get()), offset, G_SEEK_SET, nullptr, nullptr);
size_t bufferSize = std::min<size_t>(size, fileSize - offset);
uint8_t* bufferData = static_cast<uint8_t*>(fastMalloc(bufferSize));
GRefPtr<GBytes> buffer = adoptGRef(g_bytes_new_with_free_func(bufferData, bufferSize, fastFree, bufferData));
gsize bytesRead;
if (g_input_stream_read_all(m_inputStream.get(), bufferData, bufferSize, &bytesRead, nullptr, nullptr)) {
GRefPtr<GBytes> bytes = bufferSize == bytesRead ? buffer : adoptGRef(g_bytes_new_from_bytes(buffer.get(), 0, bytesRead));
queue->dispatch([protectedThis = WTFMove(protectedThis), bytes = WTFMove(bytes), completionHandler = WTFMove(completionHandler)]() mutable {
Data data(WTFMove(bytes));
completionHandler(WTFMove(data), 0);
});
return;
}
}
}
queue->dispatch([protectedThis = Ref { *this }, completionHandler = WTFMove(completionHandler)] {
completionHandler(Data { }, -1);
});
}, ThreadType::Unknown, m_qos)->detach();
}
void IOChannel::write(size_t offset, const Data& data, Ref<WTF::WorkQueueBase>&& queue, Function<void(int error)>&& completionHandler)
{
Locker locker { m_lock };
if (!m_outputStream) {
queue->dispatch([protectedThis = Ref { *this }, completionHandler = WTFMove(completionHandler)] {
completionHandler(-1);
});
return;
}
GRefPtr<GBytes> buffer = offset ? adoptGRef(g_bytes_new_from_bytes(data.bytes(), offset, data.size() - offset)) : data.bytes();
Thread::create("IOChannel::write"_s, [this, protectedThis = Ref { *this }, buffer = WTFMove(buffer), queue = WTFMove(queue), completionHandler = WTFMove(completionHandler)]() mutable {
Locker locker { m_lock };
gsize buffersize;
const auto* bufferData = g_bytes_get_data(buffer.get(), &buffersize);
auto success = g_output_stream_write_all(m_outputStream.get(), bufferData, buffersize, nullptr, nullptr, nullptr);
queue->dispatch([protectedThis = Ref { *this }, success, completionHandler = WTFMove(completionHandler)] {
completionHandler(success ? 0 : -1);
});
}, ThreadType::Unknown, m_qos)->detach();
}
} // namespace NetworkCache
} // namespace WebKit
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