Home > Development > Tasks and Mutex for Locking

Tasks and Mutex for Locking

When you use Tasks you often need to protected data. The code that accesses the critical data is known as the critical region aka protected section. You can use mutexes or locks. Note mutexes are slower than locks and this is just to show the usage. Prefer locks unless you need cross process locks.

To obtain the lock call WaitOne() and Release it after with ReleaseMutex().

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;

namespace TPLSamples
    public class Program
        public static void Main(string[] args)
            Program p = new Program();

            Console.WriteLine("Press any key to quit...");

        public void TestingMutexes()
            Mutex mutex = new Mutex();
            Random random = new Random();
            Action action = () =>
                Console.WriteLine("Task {0} has the lock", Task.CurrentId);

            Task t1 = new Task(action);
            Task t2 = new Task(action);
            Task t3 = new Task(action);


            Task.WaitAll(t1, t2, t3);



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