On Thu, Jan 25, 2007 at 12:31:02PM +0000, Thomas Pedoussaut wrote:
> Niall O Broin wrote:
> >And another question, while I'm there - the new server will run apache
> >2.0 . Does it (or even 2.2) provide any mechanism for limiting the
> >number of servers which are spawned for a given domain? It'd be useful
> >to not have to run a separate server for that domain, and it'd be
> >handy to not have to waste an IP address just for that one domain.
> >
> It can't, as the tcp connection is done BEFORE sending the "Host:
> www.example.com" header.
Actually with modern accept filters on *BSD and Linux, you can have
accept() not return until the kernel sees a blank-line, then you can do
a quick inspect and hand-off to a thread somewhere else. It's not really
a problem. That information nearly all arrives in a single read()
operation anyway, only very rarely would a HTTP request be fragmented,
it'd really have to be a big POST or PUT.
The threadpool MPM in 2.x has very basic support for this, and one of
the things I hope to get done by 3.x is a send-file-descriptors over UDP
sockets framework proxy solution for much more complicated stuff like
this.
--
Colm MacCárthaigh Public Key: colm+pgp at stdlib.net
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