public Dispatcher(SchedulerUI GUI, ProcessList list, int time_quantum = -1)
{
this.GUI = GUI;
this.list = list;
this.time_quantum = time_quantum; //only for preemptive algorithms
}
private void button1_Click(object sender, EventArgs e)
{
clearQueues();
clear_input_grid();
createQueues();
pause_start_button.Text = "Pause";
output_grid.Visible = false;
process_queue.Visible = false;
output_grid.RowHeadersVisible = false;
// clearing the table before starting the updating
output_grid.Columns.Clear();
int row_count = input_grid.RowCount - 1;
if (row_count < 1)
{
return;
}
// Creating the new process list with the data in the input grid
ProcessList process_list = new ProcessList();
for (int i = 0; i < row_count; i++)
{
DataGridViewRow row = input_grid.Rows[i];
try
{
int arrival_time = (int)row.Cells[1].Value;
int service_time = (int)row.Cells[2].Value;
process_list.add_process(arrival_time, service_time);
}
catch (Exception)
{
MessageBox.Show("Invalid data found", "Invalid data", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
//validate
if (!validate_data(this.input_grid))
{
MessageBox.Show("Please enter valid data, positive integers and not null fields", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// get the total time to create the new grid
int total_time = process_list.get_total_time();
int total_width = splitContainer1.Panel2.Width - 50 - 30;
int cell_width = total_width / total_time;
output_grid.ColumnCount = total_time + 1;
output_grid.RowCount = row_count;
output_grid.Width = total_time * cell_width + 40;
output_grid.Height = 400;
output_grid.Columns[0].HeaderText = "PID";
output_grid.Columns[0].Width = 30;
for (int i = 1; i < output_grid.ColumnCount; i++)
{
// setting up the width
output_grid.Columns[i].Width = cell_width;
// setting the columns to read only
output_grid.Columns[i].ReadOnly = true;
//setting the column headers
output_grid.Columns[i].HeaderText = i - 1 + "-" + i;
}
// setting up the PIDs
for (int i = 0; i < row_count; i++)
{
output_grid.Rows[i].Cells[0].Value = i + 1;
}
// perform the schedulng algorithm
dispatcher = new Dispatcher(this, process_list, (int)time_slice_selector.Value);
dispatcher.run_Dispatcher(algo_selector.SelectedIndex + 1);
console_out.Text = "Process history\r\n";
output_grid.ClearSelection();
output_grid.Visible = true;
process_queue.Visible = true;
}
