Re: SYN_REPLY

Multiple people from the Google contingent (not just Will) are interested
in reprioritization and specifically allowing a 'client' (most likely a
proxy) to reprioritize pushed data.

-=R


On Thu, Feb 21, 2013 at 4:39 PM, Martin Thomson <martin.thomson@gmail.com>wrote:

> On 21 February 2013 16:31, Amos Jeffries <squid3@treenet.co.nz> wrote:
> > When we start rationalizing server-push semantics so multiple replies
> can be
> > sent for one request. Most of the replies will need to be assigned some
> > lower priority than the requested reply - hopefully all within the one
> > stream. We will have to define a new response frame entirely to replace
> > reply. Why not just do it now and have initial implementations compatible
> > with those later ones?
>
> I don't get where you are going with this.  It's already possible to
> send multiple replies for a single request.  Each request gets its own
> stream.
>
> The server actually sends a SYN_STREAM for each extra "reply" (pushed
> resource).  These streams are unidirectional.  The client doesn't get
> to do anything to these streams, except reject them.  With push
> promises, there is a push promise, followed by a later SYN_STREAM.
>
> Currently, the server chooses priority for pushed streams, but our
> Google friends (sorry I can't remember who specifically raised this,
> probably Will) are interested in reprioritising streams, which would
> allow a client to have a say about request priority.
>
>