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Message-ID: <8ec3b7c10708170024s11628f8ep285c589b644b2d1f@mail.gmail.com>
Date: Fri, 17 Aug 2007 00:24:39 -0700
From: "Manoj Bist" <manoj.bist1@gmail.com>
To: "=?ISO-8859-1?Q?j=F3nJ=F3sef_Bjarnason?=" <jonb@nemendur.is>
Subject: Re: Problem with IPC:RUN on Windows
Cc: modperl@perl.apache.org
In-Reply-To: <TVI6C8Bi.1187271632.6313460.jonbimap4@nemendur.net>
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References: <TVI6C8Bi.1187271632.6313460.jonbimap4@nemendur.net>

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My understanding is that a perl module that manipulates stdout is not
expected to work under mod_perl.  IPC::Run manipulates stdout to make
different processes connected by pipes work.

You can also go through the following guidelines for porting your scripts t=
o
mod_perl.

http://perl.apache.org/docs/1.0/guide/porting.html#Output_from_system_calls

The following links has guidelines on running subprocesses from mod_perl.

http://perl.apache.org/docs/1.0/guide/performance.html#Forking_and_Executin=
g_Subprocesses_from_mod_perl

On 8/16/07, j=F3nJ=F3sef Bjarnason <jonb@nemendur.is> wrote:
>
> Dear all....
>
> It has been difficult to subscribe to the mailing list, I was refused due
> to some SPAM control when using my usual account jonb@it-cons.com. I
> would really like to know why that happened, as we do not send nor have
> we ever sent SPAM.
>
> But to my problem with IPC.....
>
> I am using W2K on a dual CPU system running Apache 2.2.4  with mod_perl2.
> I am also using Leon Brocard's Graphviz module to create graphs on the
> fly, it starts the program dot.exe via IPC::RUN. dot.exe gets started
> but never returns anything and stays in queue until the system is shut
> down.
>
> Does anyone know if this is a known problem with IPC::RUN on Windows,
> and/or if it can be resolved and how.
>
> Thanks.
>
>
> =DEessi t=F6lvup=F3stur og vi=F0hengi g=E6ti innihaldi=F0 tr=FAna=F0arupp=
l=FDsingar og/e=F0a
> einkam=E1l og ereing=F6ngu =E6tla=F0ur =FEeim sem hann er st=EDla=F0ur =
=E1. Ef sending
> =FEessi hefur ranglega borist y=F0ur vinsamlega g=E6ti=F0 fyllsta tr=FAna=
=F0ar,
> tilkynni=F0 sendanda og ey=F0ileggi=F0 sendinguna eins og skylt er skv. 4=
7.
> gr. laga nr. 81/2003 um fjarskipti.
>
> The information transmitted, including any attachment, may contain
> confidential and/or privileged material and is intended only for the
> addressee. If you receive this in error, please keep the information
> confidential, contact the sender and delete the material from your
> system.
>

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My understanding is that a perl module that manipulates stdout is not expec=
ted to work under mod_perl.&nbsp; IPC::Run manipulates stdout to make diffe=
rent processes connected by pipes work. <br><br>You can also go through the=
 following guidelines for porting your scripts to mod_perl.
<br><br><a href=3D"http://perl.apache.org/docs/1.0/guide/porting.html#Outpu=
t_from_system_calls">http://perl.apache.org/docs/1.0/guide/porting.html#Out=
put_from_system_calls</a><br><br>The following links has guidelines on runn=
ing subprocesses from mod_perl.
<br><br><a href=3D"http://perl.apache.org/docs/1.0/guide/performance.html#F=
orking_and_Executing_Subprocesses_from_mod_perl">http://perl.apache.org/doc=
s/1.0/guide/performance.html#Forking_and_Executing_Subprocesses_from_mod_pe=
rl
</a><br><br><div><span class=3D"gmail_quote">On 8/16/07, <b class=3D"gmail_=
sendername">j=F3nJ=F3sef Bjarnason</b> &lt;<a href=3D"mailto:jonb@nemendur.=
is">jonb@nemendur.is</a>&gt; wrote:</span><blockquote class=3D"gmail_quote"=
 style=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.=
8ex; padding-left: 1ex;">
Dear all....<br><br>It has been difficult to subscribe to the mailing list,=
 I was refused due<br>to some SPAM control when using my usual account <a h=
ref=3D"mailto:jonb@it-cons.com">jonb@it-cons.com</a>. I<br>would really lik=
e to know why that happened, as we do not send nor have
<br>we ever sent SPAM.<br><br>But to my problem with IPC.....<br><br>I am u=
sing W2K on a dual CPU system running Apache 2.2.4&nbsp;&nbsp;with mod_perl=
2.<br>I am also using Leon Brocard&#39;s Graphviz module to create graphs o=
n the<br>
fly, it starts the program dot.exe via IPC::RUN. dot.exe gets started<br>bu=
t never returns anything and stays in queue until the system is shut<br>dow=
n.<br><br>Does anyone know if this is a known problem with IPC::RUN on Wind=
ows,
<br>and/or if it can be resolved and how.<br><br>Thanks.<br><br><br>=DEessi=
 t=F6lvup=F3stur og vi=F0hengi g=E6ti innihaldi=F0 tr=FAna=F0aruppl=FDsinga=
r og/e=F0a<br>einkam=E1l og ereing=F6ngu =E6tla=F0ur =FEeim sem hann er st=
=EDla=F0ur =E1. Ef sending<br>=FEessi hefur ranglega borist y=F0ur vinsamle=
ga g=E6ti=F0 fyllsta tr=FAna=F0ar,
<br>tilkynni=F0 sendanda og ey=F0ileggi=F0 sendinguna eins og skylt er skv.=
 47.<br>gr. laga nr. 81/2003 um fjarskipti.<br><br>The information transmit=
ted, including any attachment, may contain<br>confidential and/or privilege=
d material and is intended only for the
<br>addressee. If you receive this in error, please keep the information<br=
>confidential, contact the sender and delete the material from your<br>syst=
em.<br></blockquote></div><br>

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