cgi-script shell script wrapping question

[Lev Olshvang]

Hi,

I would go to the javascript wrapper solution :
I would wrap cgi-script to send javascript code to browser and  then 
redirect original script output to the html file
In a javascript I would loop (and sleep) until load of html file will 
succeed.




On 12/27/2010 08:26 PM, Dov Grobgeld wrote:
> Thanks for the help! Based on it I tried running the command with 
> python as follows:
>
> import subprocess
>
> pipe = subprocess.Popen("do_slow_command 2>&1",
>          bufsize=1,
>          stdout=subprocess.PIPE,
>          stdin=subprocess.PIPE,
>          shell=True)
>
> for p in pipe.stdout.readlines():
>     print p,"<br>\n"
>
> According to the subprocess documentation, this is supposed to set up 
> line by line mode. But I still get things buffered up. But perhaps 
> that is because I did not tell "do_slow_command" to flush after print 
> command, and it senses that it is not being run under a terminal? I'll 
> try that.
>
> Dov
>
>
> On Mon, Dec 27, 2010 at 20:08, ik <idokan at gmail.com 
> <mailto:idokan at gmail.com>> wrote:
>
>     2010/12/27 shimi <linux-il at shimi.net <mailto:linux-il at shimi.net>>
>
>
>
>         2010/12/27 Dov Grobgeld <dov.grobgeld at gmail.com
>         <mailto:dov.grobgeld at gmail.com>>
>
>             I'm trying to write a cgi wrapper for a long running
>             command. The command takes about 10minutes to execute and
>             when running it from the command line it continously
>             outputs text to stdout. A simplistic cgi-bin wrapper that
>             tries to execute the script and then writes that it is
>             done fails with the following message:
>
>
>              Timeout waiting for output from CGI script ...
>
>             What I wonder if there is any easy way to have continously
>             update the web page with stdout of the script.
>
>             One way, I guess would be to run the script in a separate
>             thread and just do HTML reload on a static page which I
>             would regenaret with the stdout generated so far.
>
>             Is there any other simple solution?
>
>
>         You could increase the timeout to be > running time of the
>         script ...
>
>
>     Do not forget that you also have timeout of the web browser that
>     you can not control (you can not control the users themselves).
>
>
>         -- Shimi
>
>
>     Ido
>
>
>
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