/*
* Start a read or a write request
*/
static void raw3215_start_io(raw3215_info *raw)
{
raw3215_req *req;
int res;
req = raw->queued_read;
if (req != NULL &&
!(raw->flags & (RAW3215_WORKING | RAW3215_THROTTLED))) {
/* dequeue request */
raw->queued_read = NULL;
res = do_IO(raw->irq, req->ccws, (unsigned long) req, 0, 0);
if (res != 0) {
/* do_IO failed, put request back to queue */
raw->queued_read = req;
} else {
raw->flags |= RAW3215_WORKING;
}
}
req = raw->queued_write;
if (req != NULL &&
!(raw->flags & (RAW3215_WORKING | RAW3215_STOPPED))) {
/* dequeue request */
raw->queued_write = NULL;
res = do_IO(raw->irq, req->ccws, (unsigned long) req, 0, 0);
if (res != 0) {
/* do_IO failed, put request back to queue */
raw->queued_write = req;
} else {
raw->flags |= RAW3215_WORKING;
}
}
}
//do the init, while something to do, do the cpu, do the io, place completed nodes in io
//calculate utilazation
void FCFS::start()
{
init();
do {
do_CPU();
if (!IO->empty())
do_IO();
if (CPUnode != 0 && CPUnode->CPU_burst.back() <= 0)
{
CPUnode->CPU_burst.pop_back();
if (!CPUnode->CPU_burst.empty())
{
CPUnode->time_on = 0;
IO->insertBack(CPUnode);
}
else {
finished->insertInorderName(CPUnode);
cout << "Process: " << CPUnode->name << " finished!\n";
}
CPUnode = 0;
}
} while (!queue->empty() || !IO->empty() || CPUnode != 0);
utilization = ((double)(counter - idle) / counter) * 100;
finished->calcAvg();
cout << "Total Runtime: " << counter << endl;
cout << "CPU Utilization: " << utilization << endl;
cout << "Average WT: " << finished->aWT << "\tAverage TT: " << finished->aTT << "\tAverage RT: " << finished->aRT << endl;
}