Measure limited time for a process

[Vinn]

Hi

I want to run a process in a thread during a limited time (say, 1000 nanoseconds). I created some method to measure the time. After the time is gone, a boolean variable turns into "false", and the thread should stop. Now, it does not seem to work, and I am not sure where to search for the error.

My question: should the following code turn the value of "busy" into "false" after 1000 nanoseconds, or not?

long limitedTime = 1000;
boolean busy;

public void processing() {
  long startTime = System.nanoTime();
  long duration = System.nanoTime() - startTime;

  if (duration < limitedTime) {
    busy = true;
    }

  if (duration => limitedTime( {
    busy = false;
    }
  }

Thanks already for your answer!

[KevinWorkman]

You never update the duration. So your first while loop will never exit. Add some print statements, or better yet step through it with a debugger, to understand exactly what's going on.

[Vinn]

Thanks Kevin

I changed the "while" into "if", but... that doesn't seem to make much sense either. Maybe indeed time to explore the debugger...

[KevinWorkman]

Your only problem is that you only set the duration once. It seems to me that you should be recalculating that each time.