/// <summary>
/// When an event occurs at the specified time, this method reflects that in
/// the rolling window.
/// </summary>
/// <remarks>
/// When an event occurs at the specified time, this method reflects that in
/// the rolling window.
/// <p/>
/// </remarks>
/// <param name="time">the time at which the event occurred</param>
/// <param name="delta">the delta that will be added to the window</param>
public virtual void IncAt(long time, long delta)
{
int bi = ComputeBucketIndex(time);
RollingWindow.Bucket bucket = buckets[bi];
// If the last time the bucket was updated is out of the scope of the
// rolling window, reset the bucket.
if (bucket.IsStaleNow(time))
{
bucket.SafeReset(time);
}
bucket.Inc(delta);
}
/// <param name="windowLenMs">
/// The period that is covered by the window. This period must
/// be more than the buffering delays.
/// </param>
/// <param name="numBuckets">number of buckets in the window</param>
internal RollingWindow(int windowLenMs, int numBuckets)
{
buckets = new RollingWindow.Bucket[numBuckets];
for (int i = 0; i < numBuckets; i++)
{
buckets[i] = new RollingWindow.Bucket(this);
}
this.windowLenMs = windowLenMs;
this.bucketSize = windowLenMs / numBuckets;
if (this.bucketSize % bucketSize != 0)
{
throw new ArgumentException("The bucket size in the rolling window is not integer: windowLenMs= "
+ windowLenMs + " numBuckets= " + numBuckets);
}
}
