1/* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "core/streams/Stream.h" 33 34#include "platform/blob/BlobData.h" 35#include "platform/blob/BlobRegistry.h" 36#include "platform/blob/BlobURL.h" 37 38namespace blink { 39 40Stream::Stream(ExecutionContext* context, const String& mediaType) 41 : ActiveDOMObject(context) 42 , m_mediaType(mediaType) 43 , m_isNeutered(false) 44{ 45 // Create a new internal URL for a stream and register it with the provided 46 // media type. 47 m_internalURL = BlobURL::createInternalStreamURL(); 48 BlobRegistry::registerStreamURL(m_internalURL, m_mediaType); 49} 50 51void Stream::addData(const char* data, size_t len) 52{ 53 RefPtr<RawData> buffer(RawData::create()); 54 buffer->mutableData()->resize(len); 55 memcpy(buffer->mutableData()->data(), data, len); 56 BlobRegistry::addDataToStream(m_internalURL, buffer); 57} 58 59void Stream::finalize() 60{ 61 BlobRegistry::finalizeStream(m_internalURL); 62} 63 64void Stream::abort() 65{ 66 BlobRegistry::abortStream(m_internalURL); 67} 68 69Stream::~Stream() 70{ 71 BlobRegistry::unregisterStreamURL(m_internalURL); 72} 73 74void Stream::suspend() 75{ 76} 77 78void Stream::resume() 79{ 80} 81 82void Stream::stop() 83{ 84 neuter(); 85 abort(); 86} 87 88} // namespace blink 89