W3C home > Mailing lists > Public > www-jigsaw@w3.org > January to February 1998

Re: HttpManager & HttpRequests

From: Yves Lafon <ylafon@w3.org>
Date: Wed, 7 Jan 1998 10:35:13 +0100 (MET)
To: Paul Pazandak <pazandak@OBJS.com>
cc: www-jigsaw@w3.org
Message-ID: <Pine.SOL.3.91.980107103054.11157D-100000@tarantula.inria.fr>
On Fri, 19 Dec 1997, Paul Pazandak wrote:

> I have two questions:
> 
> 1) What is the policy for instantiating new HttpManagers?
>  
>    The docs seem very vague about this. It appears that an
>    HttpManager can handle multiple simultaneous connections,
>    so when and why would a new one be instantiated?  In the
>    general operation of a proxy will there usually be only
>    one HttpManager for the life of the proxy?
> 

There is no reason to instantiate a new one. The manager is in charge of 
maintaining the physical connections and share then with all the clients.
So there is only one such manager started.

> 2) How does one tell when a request is part of another request?
> 
>    When a page is loaded, multiple objects may be retrieved.
>    So, one could view a request as a composite request, containing
>    several child requests. Is it possible to determine by inspecting
>    a request/reply whether it is the composite request or one of
>    the children? We'd also like to be able to differentiate (within
>    a filter) completely independent requests (e.g. submitted by different
>    browser windows).

The only way to have this information is to inspect the Referer header of 
a request. If the browser is kind enough to fill it! Otherwise, as HTTP 
is stateless, there are no way to detect this.

> Thanks!
> 
> Paul.
> --
> 
> ********************************************************************
> Paul Pazandak                                      pazandak@objs.com
> Object Services and Consulting, Inc.             http://www.objs.com
> Minneapolis, Minnesota 55420-5409                       612-881-6498
> ********************************************************************
>  
> 
> 

      /\          - Yves Lafon - World Wide Web Consortium - 
  /\ /  \                Architecture Domain - Jigsaw
 /  \    \/\    
/    \   /  \   http://www.w3.org/People/Lafon - ylafon@w3.org    
Received on Wednesday, 7 January 1998 04:36:13 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 9 April 2012 12:13:27 GMT