/*----------------------------------------------------------------------------*/
#include <unistd.h>
#include <stdio.h>
/*----------------------------------------------------------------------------*/
#include "fmsglib.h"
/*----------------------------------------------------------------------------*/
#define DATAFILE "message.txt"
#define WFLAG "WRITEDONE"
#define RFLAG "READDONE"
/*----------------------------------------------------------------------------*/
int main(int argc, char *argv[])
{
	if(fork() == 0)
	{
		/** child stuff */
		char child_msg[MSG_SIZE_MAX];
		while(check_flag(WFLAG));
		read_message(DATAFILE,child_msg,MSG_SIZE_MAX);
		child_msg[MSG_SIZE_MAX-1]=0x0;
		printf("[Child-%d] MsgRead: %s\n",getpid(),child_msg);
		setup_flag(RFLAG);
		while(!check_flag(WFLAG));
		clear_flag(RFLAG);
	}
	else
	{
		/** parent stuff */
		char parent_msg[] = "I AM LEGEND!";
		write_message(DATAFILE,parent_msg);
		printf("[Parent-%d] MsgWrite: %s\n",getpid(),parent_msg);
		setup_flag(WFLAG);
		while(check_flag(RFLAG));
		clear_flag(WFLAG);
		clear_flag(DATAFILE);
	}
	printf("[%d] Done\n",getpid());
	return 0;
}
/*----------------------------------------------------------------------------*/