public void CompositeTaskRunnerDoesntHoldLockWhileCallingIterate()
{
object lockObj = new object();
// Start a task running that takes a shared lock during it's iterate.
CompositeTaskRunner runner = new CompositeTaskRunner();
runner.AddTask(new LockingTask(lockObj));
// Start a separate thread that holds that same lock whilst manipulating the CompositeTaskRunner (See InactivityMonitor for real example).
AutoResetEvent resetEvent = new AutoResetEvent(false);
ThreadPool.QueueUserWorkItem(_ =>
{
for (int i = 0; i < 10000; i++)
{
lock (lockObj)
{
var countingTask = new CountingTask("task1", 100);
runner.AddTask(countingTask);
runner.RemoveTask(countingTask);
}
}
resetEvent.Set();
});
// Wait for the second thread to finish 10000 attempts.
Assert.That(resetEvent.WaitOne(TimeSpan.FromSeconds(10)), "The secondary lock user didn't finish 10000 iterations in less than 10 seconds. Probably dead locked!");
runner.Shutdown();
}
private void StopMonitorThreads()
{
lock (_monitor)
if (_monitorStarted.CompareAndSet(true, false))
{
_connectionCheckTimer.Dispose();
_connectionCheckTimer.Dispose();
_asyncTasks.Shutdown();
_asyncTasks = null;
_asyncWriteTask = null;
_asyncErrorTask = null;
}
}
