protected LocalScheduler()
{
timer_clock_monitor = new PeriodicTimerSystemClockMonitor(TimeSpan.FromSeconds(10));
timer_clock_monitor.SystemClockChanged += (o, e) => {
var future = new List <ScheduledItemImpl <DateTimeOffset> > ();
foreach (var task in tasks)
{
task.Cancel();
future.Add(task.Reschedule(task.DueTime + (e.NewTime - e.OldTime)));
}
tasks.AddRange(future);
};
}
private static void PeriodicSystemClockChangeMonitor_Callback()
{
var provider = new FakeClockPlatformEnlightenmentProvider();
PlatformEnlightenmentProvider.Current = provider;
var clock = (FakeClock)provider.GetService <ISystemClock>();
clock._now = new DateTimeOffset(2012, 4, 26, 12, 0, 0, TimeSpan.Zero);
var cal = (FakeClockCAL)provider.GetService <IConcurrencyAbstractionLayer>();
var period = TimeSpan.FromSeconds(1);
var ptscm = new PeriodicTimerSystemClockMonitor(period);
var delta = TimeSpan.Zero;
var n = 0;
var h = new EventHandler <SystemClockChangedEventArgs>((o, e) =>
{
delta = e.NewTime - e.OldTime;
n++;
});
ptscm.SystemClockChanged += h;
Assert.NotNull(cal._action);
Assert.True(cal._period == period);
Assert.Equal(0, n);
clock._now += period;
cal._action();
Assert.Equal(0, n);
clock._now += period;
cal._action();
Assert.Equal(0, n);
var diff1 = TimeSpan.FromSeconds(3);
clock._now += period + diff1;
cal._action();
Assert.Equal(1, n);
Assert.True(delta == diff1);
clock._now += period;
cal._action();
Assert.Equal(1, n);
clock._now += period;
cal._action();
Assert.Equal(1, n);
var diff2 = TimeSpan.FromSeconds(-5);
clock._now += period + diff2;
cal._action();
Assert.Equal(2, n);
Assert.True(delta == diff2);
clock._now += period;
cal._action();
Assert.Equal(2, n);
ptscm.SystemClockChanged -= h;
Assert.Null(cal._action);
}
