Re: Creating a detached process in perl cgi

Hi Ram,

On Wed, 13 Jul 2011 19:02:46 +0530
Ramprasad Prasad <ramprasad.ap@gmail.com> wrote:

> I am trying a http API that would fork a background script and immediately
> return
> 
> I tried using fork() and setsid() or using Proc::Background
> But the problem is my API hangs until the background script is complete
>
> 
> Is there a way I can avoid this
> 
> 
> My code is here ( uses both fork and background  .. neither works :-( )
> 
> 
> #!/usr/bin/perl
> #
> #
> use strict;
> use CGI;
> use Proc::Background;
> 
> $process = "/path/script";    #

This will not compile with "use strict;" above. You need to add a "my". So I
guess your code fails previously.

> print "Content-Type: text/plain\n\n";

Please use CGI.pm's ->header() function for that.

> $SIG{CHLD}='IGNORE';
> my $pid = fork();
> setsid();

I don't think you should call setsid() in both the parent *and* child.

> print "STARTED\n";
> exit if($pid);
> my $proc1 = Proc::Background->new($process);

What's going on here?

> exit 0;
> 

Regards,

	Shlomi Fish

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• Creating a detached process in perl cgi by Ramprasad Prasad
• Re: Creating a detached process in perl cgi by Shlomi Fish
• Re: Creating a detached process in perl cgi by Ramprasad Prasad