/************************************************************************
 * file name:	channel.cpp
 * description:	for test use.
 * modification history
 * --------------------
 * 2003-5-3 8:50:42, created by zhuwei
 */ 

/* includes----------------------------------------------------------- */
#include "channel.h"

/* defines------------------------------------------------------------ */
/* typedefs----------------------------------------------------------- */
/* externs------------------------------------------------------------ */
/* globals------------------------------------------------------------ */
/* forward declarations----------------------------------------------- */

void channel::receive_data() 
{
	int i;
	packin = tpackin;
	cout << "Channel:Received packet seq no.= " << packin.seq << "\n";
	i = rand() % 10000;    /* zhuwei (2003-5-3 16:05:06) */
	packout = packin;
	cout <<"Channel: Random number = "<<i<<endl;
	if ((i > 0) && (i < 5000))    /* zhuwei (2003-5-3 13:57:40) */
	{
		packout.seq = 0;
		cout << "~~~try again:\n";
	}
	rpackout = packout;
}

void channel::send_ack()
{
	int i;
	ackin = rpackin;
	cout <<"Channel:Received Ack for packet = " << ackin.seq << "\n";
	i = rand();
	ackout = ackin;
	if ((i > 10) && (i < 500)) 
	{
		ackout.seq = 0;
	}
	tpackout = ackout;
}