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/*
* Copyright (C) 2017 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.
*/
#include "config.h"
#include "SocketStreamHandleImpl.h"
#include "SocketStreamHandleClient.h"
#include <wtf/Function.h>
namespace WebCore {
void SocketStreamHandleImpl::platformSend(const char* data, size_t length, Function<void(bool)>&& completionHandler)
{
if (!m_buffer.isEmpty()) {
if (m_buffer.size() + length > maxBufferSize) {
// FIXME: report error to indicate that buffer has no more space.
return completionHandler(false);
}
m_buffer.append(data, length);
m_client.didUpdateBufferedAmount(*this, bufferedAmount());
return completionHandler(true);
}
size_t bytesWritten = 0;
if (m_state == Open) {
if (auto result = platformSendInternal(data, length))
bytesWritten = result.value();
else
return completionHandler(false);
}
if (m_buffer.size() + length - bytesWritten > maxBufferSize) {
// FIXME: report error to indicate that buffer has no more space.
return completionHandler(false);
}
if (bytesWritten < length) {
m_buffer.append(data + bytesWritten, length - bytesWritten);
m_client.didUpdateBufferedAmount(static_cast<SocketStreamHandle&>(*this), bufferedAmount());
}
return completionHandler(true);
}
bool SocketStreamHandleImpl::sendPendingData()
{
if (m_state != Open && m_state != Closing)
return false;
if (m_buffer.isEmpty()) {
if (m_state == Open)
return false;
if (m_state == Closing) {
disconnect();
return false;
}
}
bool pending;
do {
auto result = platformSendInternal(m_buffer.firstBlockData(), m_buffer.firstBlockSize());
if (!result)
return false;
size_t bytesWritten = result.value();
if (!bytesWritten)
return false;
pending = bytesWritten != m_buffer.firstBlockSize();
ASSERT(m_buffer.size() - bytesWritten <= maxBufferSize);
m_buffer.consume(bytesWritten);
} while (!pending && !m_buffer.isEmpty());
m_client.didUpdateBufferedAmount(static_cast<SocketStreamHandle&>(*this), bufferedAmount());
return true;
}
size_t SocketStreamHandleImpl::bufferedAmount()
{
return m_buffer.size();
}
} // namespace WebCore
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