SPUG: Web interface problem
Jim Ludwig
jsl at blarg.net
Wed Mar 6 14:26:39 CST 2002
When I've run into this problem in the past, I
also could only find a reasonable solution by
handing the task off to the OS as a batch job:
system( "/usr/bin/at -q b -f " . $global{Command} . " now" );
-----Original Message-----
Date: Wed, 6 Mar 2002 11:26:49 -0800 (PST)
From: Daryn Nakhuda <daryn at marinated.org>
To: Mikel Tidwell <dragon at dreamhaven.net>
cc: <spug-list at pm.org>
Subject: Re: SPUG: Web interface problem
I'd love to hear a good way to do this as well.. Fork seemed to keep the
little globe spinning in IE, but maybe I was doing it wrong. My hack to
make it seem okay to the end user was just to schedule an at job (+10
seconds) from the cgi, then tell them it was being processed. I then had
another place where you could check the status of jobs (the script being
run by at updated the database as it ran).
On Wed, 6 Mar 2002, Mikel Tidwell wrote:
> Hi everyone,
>
> I'm stumped on how to proceed on a page for a web interface I'm creating
> for my web site. I want to be able to download a typically large file off
> another web server, and store it on the local server. By large, I mean an
> average of 20 MB or so, but up to 100 MB at a typical rate of 30K/s.
>
> Here's how I expect it to work:
>
> * User locates the file on another site, comes to the interface, and
> commands the file be downloaded.
> * Script uses either LWP or `wget` to fetch file. <Problem>
> * Script moves on to allow the person how to name the file, etc.
>
> Problem: Downloading a file usually takes more than two minutes. If the
> client doesn't time out by then, the web server will terminate the process
> anyway (cgi time limit in Roxen). I could simply change this limit, but
> I'm looking for a smarter solution.
>
> I thought about creating a child process, but I know very little about
> fork(), or what happens to the parent in this scenario. I also have an
> issue with, should the child be able to download the file, notifying the
> user that the download was complete, so he/she can continue.
>
> If this still makes any sense, please help. Thanks... ^^
>
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> MSNM: FireMyst Personal Home Page -- http://dragon.rpgamer.com/
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