Concurrency Checker

Useful piece of code when checking for concurrency in your application.

using System;
using System.Threading;

namespace Utilities
{
  public class ConcurrencyCheck : IDisposable
  {
    private static int _concurrencyCount = 0;

    public ConcurrencyCheck()
    {
      var usage = 0;
      if ((usage = Interlocked.Increment(ref _concurrencyCount)) != 1)
      {
        Console.WriteLine("{0} delegates are running concurrently", usage);
      }
    }

    public void Dispose()
    {
      Interlocked.Decrement(ref _concurrencyCount);
    }
  }
}