package edu.vt.marian.server;

import java.io.*;
import java.net.*;
import java.util.*;
import edu.vt.marian.uip.*;

/**
	interface name:  call_back_processor
	class description: this is an interface, any system which want to use
		the service of uip need to implement this interface and overwrite 
		it's methods. when client_uip or server_uip recieve a function from
		the other side it will call process_call_back(..) methods
		to process the function, since different systems may have different 
		code processing functions revieved, that's also the reason that these
		methods need to be overwrite.
	<p>uses the services of class(es): none
	designer(s): Jianxin Zhao (jxzhao@csgrad.cs.vt.edu)
	implementator(s): 
	finished time: 
	known bugs: 
	JDK version: 1.1.5
	side effects:
*/
public class call_back_processor1 implements call_back_processor
{
	/** empty constructor
	*/
	public call_back_processor1()
	{
	}

	/**
		method description: this method will be called when client uip recieve
			a function from it's server uip
		<p>uses the services of class(es): none
		input parameter(s): 
			cu -- this is the client_uip object which recieved the function 
			rf -- this is the function recieved by client_uip 
				and need to be processed
		output parameter(s): none
        return value: 
			0 -- every thing is fine, the function has been processed correctly
			other -- defined by each system
		synchronization consideration: none
    */      
	public int process_call_back(client_uip cu, rpc_function rf)
	{
		return OK;
	}

	/**
		method description: this method will be called when server uip recieve
			a function from a client uip
		<p>uses the services of class(es): none
		input parameter(s): 
			client_id -- this is used to identify from which client the server 
				get the	function
			rf -- this is the function recieved by server_uip and need to be 
				processed
		output parameter(s): none
        return value: 
			0 -- everything is fine, the function has been processed correctly
			other -- defined by each system
 		synchronization consideration: none
    */      
	public int process_call_back(int client_id, rpc_function f)
	{
		return OK;
	}
}