How to easy make this counter property thread safe?

Question

I have property definition in class where i have only Counters, this must be thread-safe and this isn\'t because get and set is not in same lock, How t

Answer 1

Using the Interlocked class provides for atomic operations, i.e. inherently threadsafe as in this LinqPad example:

void Main()
{
    var counters = new Counters();
    counters.DoneCounter += 34;
    var val = counters.DoneCounter;
    val.Dump(); // 34
}

public class Counters
{
    int doneCounter = 0;
    public int DoneCounter
    {
        get { return Interlocked.CompareExchange(ref doneCounter, 0, 0); }
        set { Interlocked.Exchange(ref doneCounter, value); }
    }
}