int main(void)
{
Queue bankQueue; //represents the line of customers in the bank/bank line
PQueue eventListPQueue; //priority queue eventListPQueue for the event list
bool tellerAvailable = true;
loadIntoPriorityQueue(eventListPQueue); //load data into Priority Queue from file/Create and add arrival events to event list
//waitTime = SUM(time of departure) - SUM(processing time) - SUM(time of arrival)/COUNT(EVENTS)
unsigned int sumDepartureTime = 0;
unsigned int sumProcessingTime = 0;
unsigned int sumArrivalTime = 0;
unsigned int eventCount = 0; //track how many customers came in
float waitTime; //Calculated at the end
cout << "Simulation Begins" << endl;
while(!eventListPQueue.isEmpty()) //run while eventListPQueue is not empty
{
Event newEvent = eventListPQueue.peek();
// Get current time
unsigned int currentTime = newEvent.getTime(); // get time of newEvent
if (newEvent.getType() == 'A') //check if newEvent is an arrival event
{
// Processes an arrival event.
//processArrival(newEvent, eventListPQueue, bankQueue, tellerAvailable, currentTime);
eventListPQueue.dequeue(); //Remove this event from the event list
Event customer = newEvent; //customer referenced in arrivalEvent
if (bankQueue.isEmpty() && tellerAvailable)
{
unsigned int departureTime = currentTime + customer.getLength();//currentTime + transaction time in arrivalEvent
Event newDepartureEvent('D', departureTime, 0); //a new departure event with departureTime
eventListPQueue.enqueue(newDepartureEvent);
tellerAvailable = false;
}
else
{
bankQueue.enqueue(customer);
}
cout << "Processing an arrival event at time:\t" << customer.getTime() << endl;
eventCount++; //count how many customers arrived
sumArrivalTime += customer.getTime();
sumProcessingTime += customer.getLength();
}
else
{
// Processes a departure event.
// processDeparture(newEvent, eventListPQueue, bankQueue, tellerAvailable, currentTime);
eventListPQueue.dequeue(); // Remove this event from the event list
if(!bankQueue.isEmpty())
{
// Customer at front of line begins transaction
Event customer = bankQueue.peek();
bankQueue.dequeue();
unsigned int departureTime = currentTime + customer.getLength(); //currentTime + transaction time in customer
Event newDepartureEvent('D', departureTime, 0); //a new departure event with departureTime
eventListPQueue.enqueue(newDepartureEvent);
}
else
{
tellerAvailable = true;
}
cout << "Processing a departure event at time:\t" << currentTime << endl; //temp
sumDepartureTime += currentTime;
}
}
waitTime = (float)(sumDepartureTime - sumProcessingTime - sumArrivalTime)/eventCount; //do the average wait time calculation
cout << "Simulation Ends\n\n";
cout << "Final Statistics:" << endl;
cout << "\tTotal number of people processed: " << eventCount << endl;
cout << "\tAverage amount of time spent waiting: " << waitTime << endl;
// cout << "Bank Queue Contents:" << endl;
// bankQueue.print();
// cout << "Priority Queue Contents:" << endl;
// eventListPQueue.print();
// resultPrinterQueue(bankQueue); //print out the results
return 0;
}
