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