public static Producer <T> RegulatePressure <T, TFeedback>(this Producer <T> producer, int limit, Producer <TFeedback> feedback, Func <int, int, TFeedback, int>?regulate = null, ChannelOptions?options = null)
{
regulate ??= (pressure, _2, _3) => pressure - 1;
var actor = new PressureControlActor <T, TFeedback>(limit, regulate);
producer.LinkTo(actor.Inbox, options);
feedback.LinkTo(actor.Feedback, options);
actor.Start();
return(actor.Outbox);
}
public async Task RegulatePressure_WithLimitAndFeedback_ShouldThrowOnNegativePressure()
{
var actor = new PressureControlActor <int, int>(1, (_1, _2, _3) => - 2);
using var producer = new Producer <int>();
using var feedback = new Producer <int>();
using var consumer = new Consumer <int>();
producer.LinkTo(actor.Inbox);
feedback.LinkTo(actor.Feedback);
actor.Outbox.LinkTo(consumer);
await producer.WriteAsync(1);
await producer.WriteAsync(2);
await feedback.WriteAsync(1);
actor.Start();
await Assert.ThrowsAsync <Exception>(async() => await actor.Completion);
}