Question

I have a critical section which is to be executed only once but is invoked by many scenarios. How can I execute this thread proc and skip all the rest of the calls?

Thanks in advance.

Answer 1

// Assuming this uses calls from multiple threads, I used volatile.
volatile bool executed = false;
object lockExcecuted = new object();

void DoSomething()
{
    lock (lockExecuted)
    {
        if (executed) return;
        executed = true;
    }
    // do something
}