C++ 消息队列

具体原理见技术文章：音视频SDK中C++端消息队列

• 引入头文件

#include "handler.h"
#include "handler_thread.h"

• 类实现thread::HandlerCallback

class BaseClass : public thread::HandlerCallback {
protected:
  void HandleMessage(thread::Message *msg) override;
  
  void DispatchRemoveMessage(thread::Message *msg) override;
}

• 初始化Handler和HandlerThread

handler_thread_ = thread::HandlerThread::Create(name);
handler_ = new thread::Handler(handler_thread_->GetLooper(), this);

• 发送消息

thread::Message *msg = new thread::Message();
msg->what = EGLMessage::kCreateEGL;
handler_->SendMessage(msg);

• 退出销毁

handler_thread_->QuitSafely();
SAFE_DELETE(handler_thread_)
SAFE_DELETE(handler_)