Brethren, I have the following Catalyst-Controller 
sub test1 : Local
{
    my ( $self, $c ) = @_;
    my $konf = ECS::Inkasso::Konfig->new();
    
    my $bin = $konf->{location}->{bin};
    my $pro = $konf->{location}->{progress};

    print STDERR ">>P start\n";
    my($chld_out, $chld_in);
    open2($chld_out, $chld_in, "perl", "$bin/x2.pl", "$pro/foo.txt");
    print STDERR ">>P end\n";
    
    $c->res->redirect( $c->req->base."/forderung/importieren/progress_
+bar" );
}

[download]
As you see the code uses IPC::Open2 to spawn off (should survive the creating process) x2.pl: 
#x2.pl
for ( 0.. 10 )
{
    open $out, ">$ARGV[0]";
    print $out "$_\n";
    close $out;
    sleep(1);
}

[download]
The problem: From the Catalyst output I see the action gets called: 
>>P start
>>P end
[info] *** Request 1 (0.025/s) [4040] [Thu Aug  2 08:13:30 2007] ***
[debug] "GET" request for "forderung/importieren/test1" from "127.0.0.
+1"
[debug] Path is "forderung/importieren/test1"
[debug] Redirecting to "http://localhost:3000//forderung/importieren/p
+rogress_bar"
[info] Request took 0.208057s (4.806/s)
.----------------------------------------------------------------+----
+-------.
| Action                                                         | Tim
+e      |
+----------------------------------------------------------------+----
+-------+
| /begin                                                         | 0.0
+72754s |
| /auto                                                          | 0.0
+00065s |
| /forderung/importieren/test1                                   | 0.0
+00891s |
'----------------------------------------------------------------+----
+-------'

[download]
However, no response gets ever sent to the browser. If I comment out the open2() line, everything works as expected. What's happening here? Does open2() something fancy with STDOUT?


holli, /regexed monk/

In reply to Catalyst and IPC::Open2 by holli

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