multimedia/client/webrtc_demo/third/include/rtc_base/message_handler.h

50 lines
1.4 KiB
C++

/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef RTC_BASE_MESSAGE_HANDLER_H_
#define RTC_BASE_MESSAGE_HANDLER_H_
#include <utility>
#include "api/function_view.h"
#include "rtc_base/constructor_magic.h"
#include "rtc_base/system/rtc_export.h"
namespace rtc {
struct Message;
// MessageQueue/Thread Messages get dispatched via the MessageHandler interface.
class RTC_EXPORT MessageHandler {
public:
virtual ~MessageHandler() {}
virtual void OnMessage(Message* msg) = 0;
};
// Warning: Provided for backwards compatibility.
//
// This class performs expensive cleanup in the dtor that will affect all
// instances of Thread (and their pending message queues) and will block the
// current thread as well as all other threads.
class RTC_EXPORT MessageHandlerAutoCleanup : public MessageHandler {
public:
~MessageHandlerAutoCleanup() override;
protected:
MessageHandlerAutoCleanup();
private:
RTC_DISALLOW_COPY_AND_ASSIGN(MessageHandlerAutoCleanup);
};
} // namespace rtc
#endif // RTC_BASE_MESSAGE_HANDLER_H_