public void TestEventTimeHistorian()
{
IRandomChannel irc = m_rs.GetRandomChannel();
IExecutive exec = ExecFactory.Instance.CreateExecutive();
EventTimeHistorian myHistorian = new EventTimeHistorian(exec, 256);
DateTime when = m_startDate;
// We set up NUM_SAMPLES events with random (0->50) minute intervals.
TimeSpan totalTimeSpan = TimeSpan.Zero;
for (int i = 0; i < NUM_SAMPLES; i++)
{
exec.RequestEvent(DoEvent, when, 0.0, myHistorian, ExecEventType.Synchronous);
double d = irc.NextDouble();
TimeSpan delta = TimeSpan.FromMinutes(d * 50.0);
totalTimeSpan += delta;
if (i < 30)
{
Console.WriteLine("Delta #" + i + ", " + delta.ToString());
}
when += delta;
}
m_actualAverage = TimeSpan.FromTicks(totalTimeSpan.Ticks / NUM_SAMPLES);
Console.WriteLine("Average timeSpan was " + m_actualAverage + ".");
exec.Start();
Console.WriteLine("After {0} events, the average interval was {1}.", myHistorian.PastEventsReceived, myHistorian.GetAverageIntraEventDuration());
}
private void DoEvent(IExecutive exec, object userData)
{
EventTimeHistorian eth = ((EventTimeHistorian)userData);
eth.LogEvent();
if (exec.Now > m_startDate)
{
m_numExecEventsFired++;
TimeSpan aied = eth.GetAverageIntraEventDuration();
m_accumulatedDeviation += (m_actualAverage - aied);
Console.WriteLine(
"Average interval = " + aied +
", Average deviation = " + TimeSpan.FromTicks(m_accumulatedDeviation.Ticks / m_numExecEventsFired).TotalMinutes);
}
}
