internal void OnAsk(Ask ask)
{
var iId = ask.InstrumentId;
var pId = ask.ProviderId + 1;
this.latestAsk[iId] = ask;
this.askByIIdAndPId[pId] = this.askByIIdAndPId[pId] ?? new IdArray<Ask>(10240);
this.askByIIdAndPId[pId][iId] = ask;
}