private void buttonCalc(object sender, RoutedEventArgs e)
{
button1.Visibility = Visibility.Visible;
button2.Visibility = Visibility.Visible;
button3.Visibility = Visibility.Visible;
button4.Visibility = Visibility.Visible;
button5.Visibility = Visibility.Visible;
button6.Visibility = Visibility.Visible;
var procList = new List <Proc>()
{
new Proc()
{
Name = "P1", Color = Objects.Color.white, Priority = Int32.Parse(priority1.Text), Burst = Int32.Parse(burst1.Text), InitialBurst = Int32.Parse(burst1.Text), Arrival = Int32.Parse(arrival1.Text)
},
new Proc()
{
Name = "P2", Color = Objects.Color.blue, Priority = Int32.Parse(priority2.Text), Burst = Int32.Parse(burst2.Text), InitialBurst = Int32.Parse(burst2.Text), Arrival = Int32.Parse(arrival2.Text)
},
new Proc()
{
Name = "P3", Color = Objects.Color.purple, Priority = Int32.Parse(priority3.Text), Burst = Int32.Parse(burst3.Text), InitialBurst = Int32.Parse(burst3.Text), Arrival = Int32.Parse(arrival3.Text)
},
new Proc()
{
Name = "P4", Color = Objects.Color.green, Priority = Int32.Parse(priority4.Text), Burst = Int32.Parse(burst4.Text), InitialBurst = Int32.Parse(burst4.Text), Arrival = Int32.Parse(arrival4.Text)
},
new Proc()
{
Name = "P5", Color = Objects.Color.red, Priority = Int32.Parse(priority5.Text), Burst = Int32.Parse(burst5.Text), InitialBurst = Int32.Parse(burst5.Text), Arrival = Int32.Parse(arrival5.Text)
},
new Proc()
{
Name = "P6", Color = Objects.Color.orange, Priority = Int32.Parse(priority6.Text), Burst = Int32.Parse(burst6.Text), InitialBurst = Int32.Parse(burst6.Text), Arrival = Int32.Parse(arrival6.Text)
}
};
var handler = new Handler(procList);
var(events, results) = handler.DoWork();
buttoncalc.Visibility = Visibility.Hidden;
newWindow = new finished(results.AverageTurnAroundTime, results.AverageWaitTime, results.CPUUtilization, results.WaitTimes, results.TurnAroundTimes);
globalEvents = events;
globalResults = results;
Drawing(globalEvents);
}
public (IDictionary <int, Event>, ProcResults) DoWork()
{
var finished = false;
var index = 0;
var timeQuantum = _timeQuantum;
var waitQueue = new List <Proc>();
var sb = new StringBuilder();
while (!finished)
{
// Check for new arrivals
var arrivals = new List <Proc>();
if (_processes.Any(x => x.Arrival == index))
{
for (int i = 0; i < _processes.Count; i++)
{
var myProc = _processes[i];
if (myProc.Arrival == index)
{
arrivals.Add(myProc);
}
}
// Check if process is currently running
for (int i = 0; i < arrivals.Count; i++)
{
var arr = arrivals[i];
if (_currentProc != null)
{
if (_currentProc.Priority >= arr.Priority)
{
waitQueue.Add(arr);
waitQueue.Sort(delegate(Proc x, Proc y) { return(y.Priority.CompareTo(x.Priority)); });
}
else
{
if (!string.Equals(_currentProc.Name, "IDLE"))
{
waitQueue.Add(_currentProc);
}
if (!arr.Finished)
{
waitQueue.Add(arr);
waitQueue.Sort(delegate(Proc x, Proc y) { return(y.Priority.CompareTo(x.Priority)); });
}
_lastProc = _currentProc.Clone();
_currentProc = null;
}
}
else
{
if (!arr.Finished)
{
waitQueue.Add(arr);
waitQueue.Sort(delegate(Proc x, Proc y) { return(y.Priority.CompareTo(x.Priority)); });
}
}
}
}
if (_currentProc == null && waitQueue.Count > 0)
{
_currentProc = waitQueue[0];
waitQueue.RemoveAt(0);
timeQuantum = _timeQuantum;
}
if (_currentProc == null || string.Equals(_currentProc.Name, "IDLE"))
{
// IDLE PROCESS TIME
_currentProc = GetIdleProc();
_lastProc = _currentProc.Clone();
_idleTime += 1;
timeQuantum -= 1;
if (timeQuantum == _timeQuantum - 1)
{
AddToGantt(sb, index, _currentProc.Name);
}
}
else
{
// use 1 unit from active proc
_currentProc.Burst -= 1;
timeQuantum -= 1;
if (timeQuantum == _timeQuantum - 1)
{
if (_lastProc != null)
{
if (!string.Equals(_currentProc.Name, _lastProc.Name))
{
_currentProc.LastStartProcessing = index;
}
}
AddToGantt(sb, index, _currentProc.Name);
}
if (_currentProc.Burst == 0)
{
_currentProc.Finished = true;
_currentProc.FinishedAtIndex = index + 1;
}
}
if (_processes.Any(x => x.Finished == true))
{
for (int i = 0; i < _processes.Count; i++)
{
var proc = _processes[i];
if (proc.Finished)
{
if (!_finished.Contains(proc))
{
_finished.Add(proc);
}
}
}
}
// create Event object and add to events
_events[index] = new Event()
{
Index = index,
Processes = CloneProcs(_processes),
Finished = CloneProcs(_finished),
Waiting = CloneProcs(waitQueue),
CurrentProc = _currentProc.Clone(),
TimeQuantum = timeQuantum,
Gantt = sb.ToString()
};
// If proc still has more units && timeQuantum is not used up, set currentProc to this guy
if (timeQuantum == 0)
{
if (!string.Equals(_currentProc.Name, "IDLE"))
{
if (!_currentProc.Finished)
{
waitQueue.Add(_currentProc);
waitQueue.Sort(delegate(Proc x, Proc y) { return(y.Priority.CompareTo(x.Priority)); });
}
}
_lastProc = _currentProc.Clone();
_currentProc = null;
timeQuantum = _timeQuantum;
}
if (_currentProc != null && _currentProc.Finished)
{
_lastProc = _currentProc.Clone();
_currentProc = null;
timeQuantum = _timeQuantum;
}
if (_processes.All(x => x.Finished == true))
{
finished = true;
AddToGantt(sb, index + 1, "Complete|");
var lastIndex = _events.Keys.Max();
var lastEvent = _events[lastIndex];
lastEvent.Gantt = sb.ToString();
}
index++;
}
if (_events == null || _events.Count <= 0)
{
return(null, null);
}
var last = _events.Keys.Max();
var processes = _events[last].Processes;
var waitTime = 0;
var turnAroundTime = 0;
var sbTurn = new StringBuilder();
var sbWait = new StringBuilder();
for (int i = 0; i < processes.Count; i++)
{
var process = processes[i];
process.FinalizeValues();
waitTime += process.WaitTime;
turnAroundTime += process.TurnAroundTime;
sbTurn.AppendLine($"{process.Name}: {process.TurnAroundTime} units");
sbWait.AppendLine($"{process.Name}: {process.WaitTime} units");
}
_results = new ProcResults()
{
AverageTurnAroundTime = (float)turnAroundTime / processes.Count,
AverageWaitTime = (float)waitTime / processes.Count,
CPUUtilization = (float)(last - _idleTime) / last,
WaitTimes = sbWait.ToString(),
TurnAroundTimes = sbTurn.ToString()
};
return(_events, _results);
}