public void Polled(Object source, IoEvent ioe)
{
Int32 eventSize = EstimateSize(ioe);
Int32 currentCounter = Interlocked.Add(ref _counter, -eventSize);
Debug.WriteLine(Thread.CurrentThread.Name + " state: " + _counter + " / " + _threshold);
if (currentCounter < _threshold)
Unblock();
}
public void Execute(IoEvent ioe)
{
Boolean offeredEvent = _queueHandler.Accept(this, ioe);
if (offeredEvent)
{
Execute(() =>
{
_queueHandler.Polled(this, ioe);
ioe.Fire();
});
_queueHandler.Offered(this, ioe);
}
}
public override void FilterWrite(INextFilter nextFilter, IoSession session, IWriteRequest writeRequest)
{
IoEvent ioe = new IoEvent(IoEventType.Write, session, writeRequest);
if (_queueHandler.Accept(this, ioe))
{
nextFilter.FilterWrite(session, writeRequest);
IWriteFuture writeFuture = writeRequest.Future;
if (writeFuture == null)
return;
// We can track the write request only when it has a future.
_queueHandler.Offered(this, ioe);
writeFuture.Complete += (s, e) => _queueHandler.Polled(this, ioe);
}
}
public void Polled(Object source, IoEvent ioe)
{
// NOOP
}
public void Offered(Object source, IoEvent ioe)
{
// NOOP
}
public Boolean Accept(Object source, IoEvent ioe)
{
return true;
}
private Int32 EstimateSize(IoEvent ioe)
{
Int32 size = _sizeEstimator.EstimateSize(ioe);
if (size < 0)
throw new InvalidOperationException(_sizeEstimator.GetType().Name + " returned "
+ "a negative value (" + size + "): " + ioe);
return size;
}