#include <stdlib.h>
#include <stdio.h>
#include <iostream.h>
#include <time.h>
#include "DiskSimulate.h"
#include "Strategy.h"

//
// FIFO methods
//
FIFO::FIFO(Disk *disk) {
    last_req = -1;
}

int FIFO::selectProcess(DiskArm *arm, RequestQueue *q) {
    // keep cycling through processes until we find one who wants
    // to make a request.
    do {
        last_req = (last_req + 1) % q->getNumProcesses();
    } while(q->getProcess(last_req)->getCurRequest() < 0);
    return last_req;
}