public void TestScheduling()
{
var ch = new EmbeddedChannel(new ChannelHandlerAdapter());
var latch = new CountdownEvent(2);
Task future = ch.EventLoop.ScheduleAsync(() => latch.Signal(), TimeSpan.FromSeconds(1));
future.ContinueWith(t => latch.Signal());
var next = ch.RunScheduledPendingTasks();
Assert.True(next > PreciseTime.Zero);
// Sleep for the nanoseconds but also give extra 50ms as the clock my not be very precise and so fail the test
// otherwise.
Thread.Sleep(PreciseTime.ToTimeSpan(next) + TimeSpan.FromMilliseconds(50));
Assert.Equal(PreciseTime.MinusOne, ch.RunScheduledPendingTasks());
latch.Wait();
}
public void GracefulShutdownQuietPeriod()
{
Task task = this.eventLoop.ShutdownGracefullyAsync(TimeSpan.FromSeconds(1), TimeSpan.MaxValue);
// Keep Scheduling tasks for another 2 seconds.
for (int i = 0; i < 20; i++)
{
Thread.Sleep(100);
this.eventLoop.Execute(new NoOp());
}
long startTime = PreciseTime.NanoTime();
Assert.True(this.eventLoop.IsShuttingDown);
Assert.False(this.eventLoop.IsShutdown);
Assert.True(task.Wait(DefaultTimeout), "Loop shutdown timed out");
Assert.True(this.eventLoop.IsShuttingDown);
Assert.True(this.eventLoop.IsShutdown);
long duration = (long)PreciseTime.ToTimeSpan(PreciseTime.NanoTime() - startTime).TotalMilliseconds;
Assert.True(duration >= 1000, $"Expecting shutdown quite period >= 1000 milliseconds, but was {duration}");
}