protected override void MarkInternalWindowStart()
{
if (_lastState != null)
{
throw new IOException(
"_lastState not equels to null when trying to set start of intervalWindow");
}
_lastState = new InternalWindowDuration
{
Start = DateTime.UtcNow
};
}
protected override void MarkInternalWindowEnd()
{
if (_lastState == null)
{
throw new IOException("_lastState equels to null when trying to set end of intervalWindow!"); // TODO : do not throw.. just log and ignore
}
_lastState.End = DateTime.UtcNow;
if (Math.Abs(Math.Round((_lastState.End - _lastState.Start).TotalMilliseconds, 2)) < double.Epsilon)
{
_lastState = null;
return;
}
_lastState.Prev = _tail;
_tail = _lastState;
_lastState = null;
}
protected override void Mark(long counter, long commandsCounter, DateTime start, DateTime end)
{
var meterItem = new TransactionMeterItem()
{
Start = start,
Counter = counter,
CommandsCounter = commandsCounter,
End = end,
InternalDurations = _tail
};
_tail = null;
var pos = Interlocked.Increment(ref BufferPos);
var adjustedTail = pos % Buffer.Length;
if (Interlocked.CompareExchange(ref Buffer[adjustedTail], meterItem, null) == null)
{
return;
}
StoreInSummarizeItem(meterItem, adjustedTail);
}
