1 /*
2  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef RTC_BASE_MESSAGE_HANDLER_H_
12 #define RTC_BASE_MESSAGE_HANDLER_H_
13 
14 #include <utility>
15 
16 #include "api/function_view.h"
17 #include "rtc_base/constructor_magic.h"
18 #include "rtc_base/system/rtc_export.h"
19 
20 namespace rtc {
21 
22 struct Message;
23 
24 // Messages get dispatched to a MessageHandler
25 class RTC_EXPORT MessageHandler {
26  public:
27   virtual ~MessageHandler();
28   virtual void OnMessage(Message* msg) = 0;
29 
30  protected:
MessageHandler()31   MessageHandler() {}
32 
33  private:
34   RTC_DISALLOW_COPY_AND_ASSIGN(MessageHandler);
35 };
36 
37 }  // namespace rtc
38 
39 #endif  // RTC_BASE_MESSAGE_HANDLER_H_
40