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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MEDIA_BASE_MEDIA_LOG_H_ | |
6 #define MEDIA_BASE_MEDIA_LOG_H_ | |
7 #pragma once | |
8 | |
9 #include "base/memory/ref_counted.h" | |
10 #include "media/base/media_log_event.h" | |
11 | |
12 namespace media { | |
13 | |
14 class MediaLog : public base::RefCountedThreadSafe<MediaLog> { | |
15 public: | |
16 | |
17 // Return a string to represent an EventType. | |
18 static const char* EventTypeToString(MediaLogEvent::Type type); | |
19 | |
20 MediaLog(); | |
21 | |
22 // Methods called by loggers when events occur. These generate appropriate | |
23 // event parameters so the caller need not worry about them. | |
24 void Load(const std::string& url); | |
25 | |
26 // Add an event to this log. Overriden by inheritors to actually do something | |
27 // with it. | |
28 // Takes ownership of |event|. | |
29 virtual void AddEvent(MediaLogEvent* event); | |
30 | |
31 // Convenience method for adding an event with no parameters. | |
32 void AddEventOfType(MediaLogEvent::Type type); | |
33 | |
34 // Convenience method for filling in common fields of a new event. | |
35 MediaLogEvent* CreateEvent(MediaLogEvent::Type type); | |
36 | |
37 protected: | |
38 friend class base::RefCountedThreadSafe<MediaLog>; | |
39 virtual ~MediaLog(); | |
40 | |
41 private: | |
42 // A unique (to this process) id for this MediaLog. | |
43 int32 id_; | |
44 | |
45 DISALLOW_COPY_AND_ASSIGN(MediaLog); | |
46 }; | |
47 | |
48 } // namespace media | |
49 | |
50 #endif // MEDIA_BASE_MEDIA_LOG_H_ | |
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