public void LongTermScheduler(int ramStartLocation)
{
//Find next process so we can add it to ready queue
CurrentJob = PCB.GetInstance().getNextProcess().GetProcessId();
CurretRamLoc = ramStartLocation;
RamStartLoc = ramStartLocation;
tempProcessData = PCB.GetInstance().getProcessData(CurrentJob);
CurrentDiskLoc = tempProcessData.GetProcessDiskStart();
if (RamStartLoc + tempProcessData.GetProcessCount() + tempProcessData.GetDataDiskSize()
+ tempProcessData.GetOutputBuffer() + tempProcessData.GetInputBuffer()
+ tempProcessData.GetTempBuffer() < 1024)
{
ReadyQueue.GetInstance().addJob(CurrentJob);
PCB.GetInstance().getProcessData(CurrentJob).SetProcessState(ProcessData.PROCESS_READY);
PCB.GetInstance().getProcessData(CurrentJob).SetProcessMemoryStart(Ram.GetInstance().WriteLocation(
HardDrive.GetInstance().GetDataFromLocation(CurrentDiskLoc), CurretRamLoc));
CurretRamLoc++;
CurrentDiskLoc++;
InstructionCount = tempProcessData.GetProcessCount();
//place the rest of the process's in the ram
while(CurrentDiskLoc < tempProcessData.GetProcessDiskStart() + InstructionCount)
{
Ram.GetInstance().Write(HardDrive.GetInstance().GetDataFromLocation(CurrentDiskLoc));
CurrentDiskLoc++;
CurretRamLoc++;
}
//now move on to data
CurrentDiskLoc = tempProcessData.GetDataDiskStart();
PCB.GetInstance().getProcessData(CurrentJob).SetDataMemoryStart(CurretRamLoc);
int DataCount, DataTempBuffer;
DataCount = tempProcessData.GetDataDiskSize();
DataTempBuffer = tempProcessData.GetTempBuffer();
while (CurrentDiskLoc < (tempProcessData.GetDataDiskStart() + DataCount))
{
Ram.GetInstance().Write(HardDrive.GetInstance().GetDataFromLocation(CurrentDiskLoc));
CurrentDiskLoc++;
CurretRamLoc++;
}
while (DataTempBuffer > 0)
{
Ram.GetInstance().Write("0x00000000");
DataTempBuffer--;
}
}
else
{
throw new ArgumentOutOfRangeException("Scheduluer: Ram out of bounds");
}
}
public void dispatchProcess(int process)
{
currentProcess = PCB.GetInstance().getProcessData(process);
instruction = currentProcess.GetProcessMemoryStart();
busy = true;
}
private Dispatcher()
{
busy = false;
currentProcess = null;
instruction = -1;
}