How can I create a monitor in C#?

How can I create a monitor in C#?

To create a monitor in C#, you can use the Monitor class from the System.Threading namespace. It allows you to synchronize access to a block of code.

Can you show me a simple example?

Sure! Here's a basic example:

using System;
using System.Threading;

class Program
{
    private static readonly object _lock = new object();

    static void Main()
    {
        Thread t1 = new Thread(AccessResource);
        Thread t2 = new Thread(AccessResource);
        t1.Start();
        t2.Start();
    }

    static void AccessResource()
    {
        Monitor.Enter(_lock);
        try
        {
            // Critical section code here
            Console.WriteLine("Thread {0} is accessing the resource.", Thread.CurrentThread.ManagedThreadId);
            Thread.Sleep(1000); // Simulate work
        }
        finally
        {
            Monitor.Exit(_lock);
        }
    }
}

What happens if I forget to call Monitor.Exit?

If you forget to call Monitor.Exit, it can lead to a deadlock situation where other threads are unable to access the critical section, causing your application to hang.