protected bool DownstreamRunning(object message)
{
if (message is SubscribePending)
{
SubscribePending(ExposedPublisher.TakePendingSubscribers());
}
else if (message is RequestMore)
{
var requestMore = (RequestMore)message;
if (requestMore.Demand < 1)
{
Error(ReactiveStreamsCompliance.NumberOfElementsInRequestMustBePositiveException);
}
else
{
DownstreamDemand += requestMore.Demand;
if (DownstreamDemand < 1)
{
DownstreamDemand = long.MaxValue; // Long overflow, Reactive Streams Spec 3:17: effectively unbounded
}
Pump.Pump();
}
}
else if (message is Cancel)
{
IsDownstreamCompleted = true;
ExposedPublisher.Shutdown(new NormalShutdownException(string.Empty));
Pump.Pump();
}
else
{
return(false);
}
return(true);
}
/// <summary>
/// TBD
/// </summary>
/// <param name="message">TBD</param>
/// <returns>TBD</returns>
protected bool DownstreamRunning(object message)
{
if (message is SubscribePending)
{
SubscribePending();
}
else if (message is RequestMore)
{
var requestMore = (RequestMore)message;
MoreRequested((ActorSubscriptionWithCursor <T>)requestMore.Subscription, requestMore.Demand);
_pump.Pump();
}
else if (message is Cancel)
{
var cancel = (Cancel)message;
UnregisterSubscription((ActorSubscriptionWithCursor <T>)cancel.Subscription);
_pump.Pump();
}
else
{
return(false);
}
return(true);
}
protected virtual void EnqueueInputElement(object element)
{
if (IsOpen)
{
if (_inputBufferElements == Count)
{
throw new IllegalStateException("Input buffer overrun");
}
_inputBuffer[(_nextInputElementCursor + _inputBufferElements) & _indexMask] = element;
_inputBufferElements++;
}
Pump.Pump();
}
public void Brew()
{
_heater.On();
_pump.Pump();
Console.WriteLine(" [_]P coffee! [_]P ");
_heater.Off();
}
/// <summary>
/// TBD
/// </summary>
/// <param name="message">TBD</param>
/// <returns>TBD</returns>
protected bool DownstreamRunning(object message)
{
switch (message)
{
case SubscribePending _:
SubscribePending();
return(true);
case RequestMore requestMore:
MoreRequested((ActorSubscriptionWithCursor <T>)requestMore.Subscription, requestMore.Demand);
_pump.Pump();
return(true);
case Cancel cancel:
UnregisterSubscription((ActorSubscriptionWithCursor <T>)cancel.Subscription);
_pump.Pump();
return(true);
default:
return(false);
}
}
/// <summary>
/// TBD
/// </summary>
/// <param name="self">TBD</param>
public static void GotUpstreamSubscription(this IPump self)
{
if (self.TransferState is WaitingForUpstreamSubscription)
{
var t = (WaitingForUpstreamSubscription)self.TransferState;
if (t.Remaining == 1)
{
self.TransferState = t.AndThen.Precondition;
self.CurrentAction = t.AndThen.Action;
}
else
{
self.TransferState = new WaitingForUpstreamSubscription(t.Remaining - 1, t.AndThen);
}
}
self.Pump();
}
