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82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
/*
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* Copyright (C) 2012 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/platform/graphics/ThreadSafeDataTransport.h"
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#include "sky/engine/platform/SharedBuffer.h"
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namespace blink {
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ThreadSafeDataTransport::ThreadSafeDataTransport()
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: m_readBuffer(SharedBuffer::create())
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, m_allDataReceived(false)
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, m_readPosition(0)
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{
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}
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ThreadSafeDataTransport::~ThreadSafeDataTransport()
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{
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}
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void ThreadSafeDataTransport::setData(SharedBuffer* buffer, bool allDataReceived)
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{
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ASSERT(buffer->size() >= m_readPosition);
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Vector<RefPtr<SharedBuffer> > newBufferQueue;
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const char* segment = 0;
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while (size_t length = buffer->getSomeData(segment, m_readPosition)) {
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m_readPosition += length;
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newBufferQueue.append(SharedBuffer::create(segment, length));
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}
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MutexLocker locker(m_mutex);
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m_newBufferQueue.appendVector(newBufferQueue);
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m_allDataReceived = allDataReceived;
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}
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void ThreadSafeDataTransport::data(SharedBuffer** buffer, bool* allDataReceived)
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{
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Vector<RefPtr<SharedBuffer> > newBufferQueue;
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{
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MutexLocker lock(m_mutex);
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m_newBufferQueue.swap(newBufferQueue);
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}
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for (size_t i = 0; i < newBufferQueue.size(); ++i)
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m_readBuffer->append(newBufferQueue[i].get());
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ASSERT(buffer);
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ASSERT(allDataReceived);
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*buffer = m_readBuffer.get();
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*allDataReceived = m_allDataReceived;
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}
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bool ThreadSafeDataTransport::hasNewData()
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{
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MutexLocker lock(m_mutex);
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return !m_newBufferQueue.isEmpty();
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}
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} // namespace blink
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