include "NSLog.incl"

void local fn DoIt
  LockRef m = fn LockInit

  LockingLock( m )

  if ( fn LockTry( m ) )
    NSLog(@"lock acquired") // acquire a lock -- does not block if not acquired
  else
    NSLog(@"already locked, does not block")
  end if

  LockingUnlock( m )
end fn

fn DoIt

HandleEvents