blob: 11cc5bea2038484502c4e0410184f387979c14d2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_MESSAGE_LOOP_FACTORY_H_
#define MEDIA_BASE_MESSAGE_LOOP_FACTORY_H_
#include <list>
#include <string>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop_proxy.h"
#include "base/synchronization/lock.h"
#include "media/base/media_export.h"
class MessageLoop;
namespace base {
class Thread;
}
namespace media {
// Factory object that manages named MessageLoops.
//
// TODO(scherkus): replace this with something simpler http://crbug.com/116873
class MEDIA_EXPORT MessageLoopFactory {
public:
enum Type {
kDecoder,
kPipeline
};
MessageLoopFactory();
// Get the message loop proxy associated with |type|. A new MessageLoopProxy
// is created if the factory doesn't have one associated with |type|.
scoped_refptr<base::MessageLoopProxy> GetMessageLoop(Type type);
private:
// Only allow scoped_ptr<> to delete factory.
friend class scoped_ptr<MessageLoopFactory>;
~MessageLoopFactory();
// Returns the thread associated with |type| creating a new thread if needed.
base::Thread* GetThread(Type type);
// Lock used to serialize access for the following data members.
base::Lock lock_;
// List of pairs of created threads and their types. We use a list to ensure
// threads are stopped & deleted in reverse order of creation.
typedef std::list<std::pair<Type, base::Thread*> > ThreadList;
ThreadList threads_;
DISALLOW_COPY_AND_ASSIGN(MessageLoopFactory);
};
} // namespace media
#endif // MEDIA_BASE_MESSAGE_LOOP_FACTORY_H_
|
