/ticket-booking-simulation-golang

A simulation to understand concurrency in golang with worker pool, mutex, waitGroup, go routines and channels. If 1500 users try to book 1000 tickets at a time, then only 1000 tickets should be booked and 500 failed bookings should be there.

Primary LanguageGo

Ticket Booking System Simulation

This project simulates a ticket booking system to demonstrate various concurrency patterns in Go, including goroutines, channels, mutexes, and worker pools.

Overview

The goal of this project is to simulate a scenario where multiple users try to book a limited number of tickets concurrently. The system handles concurrent booking requests using a worker pool and ensures that no more tickets are booked than available. Additionally, it tracks the number of successful and failed booking attempts.

Concurrency Patterns Used

  • Goroutines: Lightweight threads managed by the Go runtime to handle concurrent booking requests.
  • Channels: Used for communication between the main function and worker goroutines.
  • Mutex: Ensures safe access to shared data (total and booked tickets) between multiple goroutines.
  • Worker Pool: Limits the number of concurrent booking attempts to a manageable level.

Code Explanation

TicketBookingSystem Struct

The TicketBookingSystem struct maintains the total number of tickets, the number of booked tickets, and the number of failed booking attempts. It uses a mutex to ensure that the ticket booking process is thread-safe.

WorkerPool Struct

The WorkerPool struct manages the workers that process booking requests. It includes the number of workers, channels for requests and results, and a wait group to synchronize the workers.

Booking Logic

The BookTicket method of TicketBookingSystem checks if there are any tickets left and, if so, books a ticket. Otherwise, it increments the count of failed booking attempts.

Worker Function

Each worker processes booking requests from the request channel and sends the result to the result channel. A random delay simulates real-world conditions where booking requests do not arrive all at once.

Main Function

The main function initializes the ticket booking system and the worker pool, starts the booking process, and prints the results.

How to Run

  1. Clone the repository:

    git clone https://github.com/yourusername/ticket-booking-simulation.git

  2. Navigate to the project directory:

    cd ticket-booking-simulation

  3. Run the Go program:

    go run main.go totalTickets=50 totalUsers=55 workerCount=10