[undertow-dev] Async sending of NIO objects thru a ServletOutputStream?

[Jason T. Greene]

Sent from my iPhone

> On Sep 16, 2014, at 8:19 PM, Jim Crossley <jim at crossleys.org> wrote:
> 
> Is this an async or a blocking transfer? The problem with
> > ReadableByteChannel is that it can be a blocking channel, and as a
> > result reading from it in the IO thread will result in crappy
> > performance.
> 
> Because of the way they're using it (with Clojure's core.async library)
> I expect the transfer to be async, but I'll verify that with them.

I just looked at the Jetty impl, and the code assumes blocking behavior with that method. Anything using it will be blocking reads with non blocking writes.