W3C home > Mailing lists > Public > www-lib@w3.org > January to March 2001

multiple persistant connections to the same host

From: Tarik Miller <tmiller@penguinpowered.com>
Date: Thu, 15 Feb 2001 15:19:36 -0800 (PST)
To: www-lib@w3.org
Message-ID: <Pine.LNX.4.10.10102151500340.29380-100000@surveyorcorp.com>

I am new to libwww and I have a need for a senario which involves several
open sockets to a single host and the ability to direct requests to a
specific socket.  In other words, I have a set of related HTTP requests
and this chain of requests must all go over the same socket.  I can do
this fine with what I know of libwww but I also want to set up a bunch of
these chains to the same host and I can't see a good way to do that.

From what I can tell, when processing of a request starts an HTNet object
is attached to the HTRequest.  Then an HTHost is attached to the net
object.  The HTHost is pulled from a hash table keyed on the host address
and created if one doesn't exist.  So you only ever have one HTHost object
per host address.  In addition each HTHost only has one channel associated
with it.

It seems to me that I need a way to have multiple HTHosts.  I could do
this my making my own modified version of the HTTP protocol module which
comes with the library.  I would change it so that I could tack on some
unique identifier to the host address string and it would use the whole
string for hash lookup purposes but chop off the unique identifier when
doing the name resolving.  Thing is, that's a small change and I'd be just
copying all of the other code from the HTTP module to make my module and
that seems like overkill to me.  Is there a better way to handle this?


Received on Thursday, 15 February 2001 18:18:56 UTC

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