Retries

[herecydev]

If a channel is not correctly updating it's operational status or is faulting frequently, we could end up with some stack overflow issues. It might be beneficial to have a way of supplying a retry policy to the sending stream to shut down inoperative channels.

[smudge202]

I think this should be a focus on extensibility over functionality. Get Polly working with the library without it being hacky, job done?

[herecydev]

I think it's one of those things that everyone will have a unique requirement and want specific behavior, so providing a stock implementation is dead in the water. There are 2 ways I can think off immediately that can make most people happy:

1. Let people bring their own sender to the table. By registering MyRetrySender<T> and having the implementation take a collection of ISendingChannel<T> you can make your own sender however you wish (this is a no code solution)
2. Have an IRetryPolicy or similar with a method bool Retry<T>(T message, Exception ex, int retryCount) and let the consumer provide an implementation.