static int RunMultiCore()
{
// While there are programs in the job queue
while (Queue.New.First != null)
{
// Load to memory from disk - requires the mmu lock to access
LongTermScheduler.Execute();
// While the ready queue is not empty thread the CPU threads
while (Queue.Ready.First != null)
{
// Dispatch to CPUs
ShortTermScheduler.Start();
foreach (var core in Cores)
{
if (!core.isWaiting && core.ActiveProgram != null)
{
// Wait for the core thread to start and the CPU acquires the MMU lock in its critical section
System.Console.WriteLine("Running PCB: " + core.ActiveProgram.ProcessID);
core.Run();
}
}
}
}
if (Queue.Terminated.Count != 30 || Queue.New.First != null)
{
return(-1);
}
return(0);
}
/// <summary>
/// Acquires the queue lock for the new queue and validates the new queue is not empty
/// --> Make async if Queue lock
/// </summary>
static void __init()
{
// For single core priority since the MMU only gets loaded one program at a time, need to select based on priority
if (degree == 0 && ShortTermScheduler.POLICY == SchedulerPolicy.Priority)
{
Driver._QueueLock.Wait();
var toSort = Queue.New;
Queue.New = ShortTermScheduler.InsertSort(toSort);
Driver._QueueLock.Release();
degree = 1;
}
if (Driver._QueueLock.CurrentCount != 0)
{
if (Queue.New.First != null)
{
currentPointer = Queue.New.First.Value;
}
}
}
static int RunSingleCore()
{
while (Queue.New.First != null)
{
// Acquires the mmu semaphore for reading and writing to memory
LongTermScheduler.Execute();
ShortTermScheduler.Start();
// Waits for the core thread to run
System.Console.WriteLine("Running PCB: " + Cores[0].ActiveProgram.ProcessID);
Cores[0].Run();
// WriteToFile("ramdata", RAMDUMP());
}
if (Queue.Terminated.Count != 30 || Queue.New.First != null)
{
return(-1);
}
return(0);
}
