public void load(Disk disk, RAM ram, pcbQueue pcbQueue) //Loads the next batch of jobs into RAM
{
while (pcbQueue.jobsComplete() == false && pcbQueue.ramIterator < 30)
{
int index = pcbQueue.ramIterator; //Starting load index is where the ramIterator currently points
while (spaceAvailable(iterator, pcbQueue.queue[index].spaceReq, ram) == false)
{
//do nothing
Thread.Yield();
}
while (spaceAvailable(iterator, pcbQueue.queue[index].spaceReq, ram) == true) //It will stop loading when space is no longer available for next process
{
if (pcbQueue.ramIterator >= pcbQueue.queue.Length)
{
break;
}
loadRAM(disk, ram, pcbQueue, pcbQueue.ramIterator);
}
ram.calculateUsed();
if (debugMode)
{
Console.WriteLine("Percentage of RAM used: " + ram.percentageUsed + "%");
}
iterator = 0;
}
}
public void execute(RAM ram, pcbQueue pcbQueue, Scheduler schedule, cpuQueue que)
{
while (pcbQueue.jobsComplete() == false)
{
while (this != que.head || pcbQueue.cpuIterator >= pcbQueue.ramIterator)
{
//do nothing
if (pcbQueue.jobsComplete() == true)
{
return;
}
Thread.Yield();
}
PCB temp = pcbQueue.queue[pcbQueue.cpuIterator];
if (debugMode)
{
Console.WriteLine("CPU " + this.id + " executing job " + temp.processID);
}
pcbQueue.cpuIterator++;
que.deQueue();
temp.startTime = DateTime.Now.TimeOfDay;
temp.waitTime = temp.startTime - temp.ramLoadTime;
PopulateInstructionList(ram, temp);
this.StartWork(temp);
temp.timeCompleted = DateTime.Now.TimeOfDay;
if (debugMode)
{
temp.core = pcbQueue.getCoreDump(temp, ram);
}
temp.executionTime = temp.timeCompleted - temp.startTime;
temp.complete = true;
this.signal(ram, schedule, temp);
if (debugMode)
{
Console.WriteLine("Process " + temp.processID + " complete!");
}
que.enQueue(this);
if (debugMode)
{
Console.WriteLine("Jobs complete? " + pcbQueue.jobsComplete());
}
}
}