/* 	ELEC 377, Lab 3
 *
 * common.c contains routines to be used from both the  producer, and the  consumer
 *   Mutual Exclusion routines will be here
 */

#include <stdio.h>
#include <strings.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <stdlib.h>

#include "common.h"

#define FALSE 0
#define TRUE 1

static struct shared *sharedptr;

void mutexInit(struct shared *memptr){
        // initialize the only mutex once, from the producer... 
    sharedptr = memptr;
}



void getMutex(short pid){
	// this should not return until it has mutual exclusion. Note that many versions of 
	// this will probobly be running at the same time.

}

void releaseMutex(short pid){
	// set the mutex back to initial state so that somebody else can claim it
}