Stopping timer in its callback method

Question

I have a System.Threading.Timer that calls its appropriate event handler (callback) every 10 ms. The method itself is not reentrant and can

Answer 1

I do it with Interlocked that provides atomic operations, and by CompareExchange ensures that only one thread at a time enters the critical section:

private int syncPoint = 0;

private void Loop()
    {
        int sync = Interlocked.CompareExchange(ref syncPoint, 1, 0);
         //ensures that only one timer set the syncPoint to  1 from 0
        if (sync == 0)
        {
            try
            {
               ...
            }
            catch (Exception pE)
            {
               ...  
            }
            syncPoint = 0;
        }

    }