private void btnSave_Click(object sender, EventArgs e)
{
int error = 0;
try //if theres no exception in this block its going on
{
p1 = new NewProcess();
p1.name = boxName.Text;
p1.ID = Convert.ToInt32(boxID.Text);
p1.time = Convert.ToInt32(boxTime.Text);
p1.switchTime = Convert.ToInt32(boxSW.Text);
form.AddProcess(p1);
}
catch (Exception) //if theres exception n the try block it'll proccess here
{
MessageBox.Show("Заполните все поля!");
error = 1;
}
if (error != 1)
{
boxName.Text = "";
boxTime.Text = "";
boxSW.Enabled = false;
int tempID = Convert.ToInt32(boxID.Text); //auto increment ID field
tempID = tempID + 4;
boxID.Text = tempID.ToString();
}
} //Сохранить
public void AddProcess(NewProcess tempProcess)
{
//Create Strings of each process value and send to Data Grid View
string ID = tempProcess.ID.ToString();
string name = tempProcess.name;
string time = tempProcess.time.ToString();
string switch_time = tempProcess.switchTime.ToString();
string[] tempProcessArray = { ID, name, time, switch_time, "Готов" };
dataGridView.Rows.Add(tempProcessArray);
//Add the process to processess list
processesList.AddLast(tempProcess);
}
//----------------Main Round Robin Algorithm Method-------------------
public void runRoundRobin(ref NewProcess[] multiNewProcesses, int quantum)
{
int hv = 0, wh = 0, ww = 0; //for drawing rect; theyre like x, y, x.
//Assign Each Process Its Execution Time
foreach (var NewProcess in multiNewProcesses)
{
//RemaingTime = Total Time @ when process starts execution
//because of the switch time (время переключения) its given in % so like if, for example, sw =10% from time, so remaining time =
NewProcess.remainingTime = NewProcess.time - (NewProcess.time * NewProcess.switchTime / 100);
drawRect(NewProcess.name, 0 + ww, (pictureBox1.Height - 30), Brushes.DarkKhaki); //show names of processes
ww += 80; //in order to draw them with spaces, its like margin-right
}
while (true)
{
//Close loop on default, if the value is not changed due to available processes executions
bool executionFinished = true;
//Loop through all processes until the loop ends
foreach (var NewProcess in multiNewProcesses)
{
if (NewProcess.remainingTime == 0)
{
NewProcess.status = "Завершен";
updateDataGridView(dataGridView, multiNewProcesses);
}
//Check if the process has any burst time left
else if (NewProcess.remainingTime > 0)
{
//Continue the loop, as a process is executing now and we need to recheck for others
executionFinished = false;
//Check if the process remaining time is greater than quantum
if (NewProcess.remainingTime > quantum)
{
//Process Status to Running as its Under Execution
NewProcess.status = "Выполняется";
updateDataGridView(dataGridView, multiNewProcesses);
executionTimer(quantum);
//Remove the quantum time from the remaining time
NewProcess.remainingTime = NewProcess.remainingTime - quantum;
//Swap Process to Ready State after execution and continue for next
NewProcess.status = "Готов";
updateDataGridView(dataGridView, multiNewProcesses);
string str = (NewProcess.remainingTime).ToString();
drawRect(str, 0 + hv, (pictureBox1.Height - 70) - wh, Brushes.BlueViolet); //draw rects with remaining times
}
//Only runs when the process is on its last cpu burst cycle
else
{
//Process Status to Running as its Under Execution
NewProcess.status = "Выполняется";
updateDataGridView(dataGridView, multiNewProcesses);
executionTimer(NewProcess.remainingTime);
//Set remaining time to 0, as the last cpu burst ended
NewProcess.remainingTime = 0;
//Change Process Status to Completed
NewProcess.status = "Завершен";
updateDataGridView(dataGridView, multiNewProcesses);
string str = (NewProcess.remainingTime).ToString();
drawRect(str, 0 + hv, (pictureBox1.Height - 70) - wh, Brushes.BlueViolet);
}
}
NewProcess last_one = multiNewProcesses.Last(); // this is for building rects in columns, so if its the last process so the next one is gonna be set above the first one
if (NewProcess.ID == last_one.ID)
{
hv = 0;
wh += 30; // y
}
else
{
hv += 80; // x
}
}
//When All Processes have completed their execution
if (executionFinished == true)
{
break;
}
}
}