Method ~http_request

lib_acl_cpp/samples/http_client/main.cpp:19–24

	}

	~http_request(void)
	{
		printf("notify aio handle to stop!\r\n");
		// ֪ͨ�첽�¼�������ȫ�˳�
		handle_->stop();
	}
protected:
	//////////////////////////////////////////////////////////////////////////
	// ������ӿ�