1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * Copyright (C) 2013 Nokia Corporation and/or its subsidiary(-ies).
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
21 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "MediaStreamRegistry.h"
28
29#if ENABLE(MEDIA_STREAM)
30
31#include "MediaStream.h"
32#include <wtf/MainThread.h>
33#include <wtf/NeverDestroyed.h>
34#include <wtf/URL.h>
35
36namespace WebCore {
37
38MediaStreamRegistry& MediaStreamRegistry::shared()
39{
40 // Since WebWorkers cannot obtain MediaSource objects, we should be on the main thread.
41 ASSERT(isMainThread());
42 static NeverDestroyed<MediaStreamRegistry> instance;
43 return instance;
44}
45
46void MediaStreamRegistry::registerURL(SecurityOrigin*, const URL& url, URLRegistrable& stream)
47{
48 ASSERT(&stream.registry() == this);
49 ASSERT(isMainThread());
50 m_mediaStreams.set(url.string(), static_cast<MediaStream*>(&stream));
51}
52
53void MediaStreamRegistry::unregisterURL(const URL& url)
54{
55 ASSERT(isMainThread());
56 m_mediaStreams.remove(url.string());
57}
58
59URLRegistrable* MediaStreamRegistry::lookup(const String& url) const
60{
61 ASSERT(isMainThread());
62 return m_mediaStreams.get(url);
63}
64
65MediaStream* MediaStreamRegistry::lookUp(const URL& url) const
66{
67 return static_cast<MediaStream*>(lookup(url.string()));
68}
69
70static Vector<MediaStream*>& mediaStreams()
71{
72 static NeverDestroyed<Vector<MediaStream*>> streams;
73 return streams;
74}
75
76void MediaStreamRegistry::registerStream(MediaStream& stream)
77{
78 mediaStreams().append(&stream);
79}
80
81void MediaStreamRegistry::unregisterStream(MediaStream& stream)
82{
83 auto& allStreams = mediaStreams();
84 size_t pos = allStreams.find(&stream);
85 if (pos != notFound)
86 allStreams.remove(pos);
87}
88
89void MediaStreamRegistry::forEach(const WTF::Function<void(MediaStream&)>& callback) const
90{
91 for (auto& stream : mediaStreams())
92 callback(*stream);
93}
94
95} // namespace WebCore
96
97#endif // ENABLE(MEDIA_STREAM)
98