#ifndef __ECHO_CALLBACK_IDL__
#define __ECHO_CALLBACK_IDL__

module plpbus_orb {
	struct DataItem {
      		string name;
      		any value;
					string str_value;
	};
	
	typedef sequence<DataItem> DataItemSequence;
	

	interface OrbClient {
		// send event to orb client
	    	void receive_event_message(in string event_param);
	    	void receive_event_dataitem_sequence(in DataItemSequence event_param);
  		// send message to orb client
    		void receive_response_message(in string msg_rsp_param);
    		void receive_response_dataitem_sequence(in DataItemSequence msg_rsp_param);
  	};

	interface OrbServer {
    		// send message to server and then call back to client
    		void send_message_and_request_response(in OrbClient response_listener_param, in string msg_param);
		void send_dataitem_message_and_request_response(in OrbClient response_listener_param, in DataItemSequence req_seq_param);
    		
    		// send message to server and wait response
    		string send_message_and_wait_response(in string msg_req_param, out long err_flg);
    		long send_dataitem_message_and_wait_response(in DataItemSequence req_seq_param, out DataItemSequence rsp_seq_param);
    		
    		// register listening events periodically
    		void add_event_listener(in OrbClient callback_client_param,
    				in string msg_param,
    				in unsigned short period_secs);
		// send shutdown request to server
    		void shutdown();
	};
};

#endif