/*
* When users presses an amount to withdraw
* Passes in the amount getting withdrawed
*/
private void withdrawInstructions(int amount)
{
// if statement needed for the semaphore or Mutex
int balance = activeAccount.getBalance();
if (dataRace.Checked == false && SemaRadio.Checked == true)
{
Console.WriteLine("Sema");
activeAccount.GetSemaphore().WaitOne();
}
else if (dataRace.Checked == false && MutexRadio.Checked == true)
{
Console.WriteLine("mutex");
mutex.WaitOne();
}
if (activeAccount.decrementBalance(amount))
{
atmManager.log("Successfully withdrawn £" + amount + ".");
MessageBox.Show("Thank you for withdrawing £" + amount + " \nPlease collect your money");
withdraw = true;
DisplayInput.Text = "";
}
else
{
atmManager.log("Insufficient balance to withdraw.");
MessageBox.Show("Insufficent balance withdrawal thing please select another option");
}
if (dataRace.Checked == false && SemaRadio.Checked == true)
{
Console.WriteLine("Sema");
activeAccount.GetSemaphore().Release();
}
else if (dataRace.Checked == false && MutexRadio.Checked == true)
{
Console.WriteLine("mutex");
mutex.ReleaseMutex();
}
}
// When green enter button is pressed
private void enterBtn_Click(object sender, EventArgs e)
{
if (loginTextbox.Text == "")
{
wrongInputLbl.Text = "Ivalid input, Please try again";
}
else if (state == 1) // Account Number State
{
activeAccount = findAccount(Int32.Parse(loginTextbox.Text));
loginTextbox.Text = "";
if (activeAccount != null) // If account number successful
{
state = 2; // PIN State
display();
}
else
{
wrongInputLbl.Text = "Wrong Account Number";
}
}
else if (state == 2) // PIN State
{
if (activeAccount.checkPin(Int32.Parse(loginTextbox.Text))) // If PIN correct
{
state = 3; // Main Menu State
display();
incorrectPIN = 0;
}
else
{
incorrectPIN++;
wrongInputLbl.Text = "Wrong PIN";
}
loginTextbox.Text = "";
}
else if (state == 6) // Choose Amount State
{
if (usingSemaphore)
{
activeAccount.accessed.WaitOne();
}
if (activeAccount.decrementBalance(Int32.Parse(loginTextbox.Text), usingSemaphore))
{
state = 5;
}
else
{
state = 7;
}
if (usingSemaphore)
{
activeAccount.accessed.Release();
}
display();
loginTextbox.Text = "";
}
if (incorrectPIN >= 3) // If the PIN is incorrect 3 times deactivate the acoount.
{
activeAccount.destroyAccount();
state = 1;
display();
incorrectPIN = 0;
wrongInputLbl.Text = "PIN wrong 3 times. Account deactivated.";
}
}