/// <summary>
/// Generates a list of processes
/// </summary>
/// <returns></returns>
public static List <ProcessDTO> GenerateList()
{
//Create a list to store processes in
List <ProcessDTO> processList = new List <ProcessDTO>();
//seed with total seconds
Random rand = new Random(DateTime.Now.Millisecond);
//Set the total number of processes
int totalProcesses = rand.Next(10, 20);
//create the processes
for (int i = 0; i < totalProcesses; i++)
{
ProcessDTO process = new ProcessDTO();
process.ProcessId = i;
process.Priority = rand.Next(0, 5);
process.ArrivalTime = rand.Next(0, 5);
process.BurstTime = rand.Next(5, 25);
process.RemainingTime = process.BurstTime;
processList.Add(process);
}
var sortedList = processList.OrderBy(a => a.ArrivalTime);
return(sortedList.ToList());
}
/// <summary>
/// Calculates the aditional wait to add to the process
/// </summary>
/// <param name="process"></param>
/// <param name="remainingTime"></param>
/// <param name="totalWaits"></param>
private void CalculateWait(ProcessDTO process, int remainingTime, int totalWaits)
{
//if this is the first execution, there is no wait to calculate
if (totalWaits == 0 && remainingTime == 10)
{
process.WaitTime = 0;
return;
}
//calculate the number of full cycles before this process has been reached
int waitDiff = totalWaits - process.lastProcess;
//calculate the exact time since the process has been touched
process.WaitTime += (waitDiff * QUANTUM) + (QUANTUM - remainingTime);
}