[undertow-dev] WebSocket sending back pressure

I am finding that sometimes I have WebSocket connections that are unable to flush messages out the socket at the rate I am generating messages. I'm using the core.WebSockets class to send messages. Is it possible to achieve this with what exists currently? My initial guess is no.. conceptually it would be nice for core.WebSockets to return a CompletableFuture-style object that would let me get a callback when the message is sent, or have the ability to cancel it if it is still sitting in the send queue. I'm happy to help build something into Undertow if it is a welcome addition. -pete -- (peter.royal|osi)(a)pobox.com - http://fotap.org/~osi