public SummaryChild(Summary parent)
{
this.parentName = parent.Name;
this.objectives = parent.objectives;
this.maxAge = parent.maxAge;
this.ageBuckets = parent.ageBuckets;
this.bufCap = parent.bufCap;
this.sortedObjectives = new double[this.objectives.Count];
this.hotBuf = new SampleBuffer(this.bufCap);
this.coldBuf = new SampleBuffer(this.bufCap);
this.streamDuration = new TimeSpan(this.maxAge.Ticks / this.ageBuckets);
this.headStreamExpTime = DateTime.UtcNow.Add(this.streamDuration);
this.hotBufExpTime = this.headStreamExpTime;
this.streams = new QuantileStream[this.ageBuckets];
for (var i = 0; i < this.ageBuckets; i++)
{
this.streams[i] = QuantileStream.NewTargeted(this.objectives);
}
this.headStream = this.streams[0];
for (var i = 0; i < this.objectives.Count; i++)
{
this.sortedObjectives[i] = this.objectives[i].Quantile;
}
Array.Sort(this.sortedObjectives);
}
// MaybeRotateStreams needs mtx AND bufMtx locked.
private void MaybeRotateStreams()
{
while (!this.hotBufExpTime.Equals(this.headStreamExpTime))
{
this.headStream.Reset();
this.headStreamIdx++;
if (this.headStreamIdx >= this.streams.Length)
{
this.headStreamIdx = 0;
}
this.headStream = this.streams[this.headStreamIdx];
this.headStreamExpTime = this.headStreamExpTime.Add(this.streamDuration);
}
}