/// <summary>
/// Adds a pcb to the system when using round robin scheduling
/// </summary>
/// <param name="pcb"></param>
public void AddPcbRoundRobin(ProcessControlBlock pcb)
{
var canAdd = this.Memory.CanAllocate(pcb.MemoryRequirement);
//add PCB to ready queue
if (canAdd)
{
pcb.State = State.NEW;
this.ReadyQueue.EnQueue(pcb);
this.Memory.AssignMemory(pcb.MemoryRequirement);
}
else
{ // add PCB to waiting queue
pcb.State = State.NEW;
WaitingQueue.EnQueue(pcb);
this._os.Gui.UpdateWaitingQueueLog();
}
}
/// <summary>
/// Adds pcb to the appropriate device queue. If a queue doesnt exist for it create one.
/// </summary>
/// <param name="ioDevice"></param>
/// <param name="pcb"></param>
public void ScheduleIo(string ioDevice, ProcessControlBlock pcb)
{
//log the io request
pcb.IoRequestsPerformed++;
//add the io to its queue if it exists, else create a new queue and it
if (_ioDictionary.ContainsKey(ioDevice))
{
_ioDictionary[ioDevice].EnQueue(pcb);
}
else
{
ExecutionQueue newQ = new ExecutionQueue();
newQ.EnQueue(pcb);
_ioDictionary.Add(ioDevice, newQ);
}
this._os.Gui.UpdateIoQueueLog();
}
