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Re: timeout: msg#00019

lang.perl.modules.lwp

Subject: Re: timeout

Hi,

I have also tried your suggestion using alarm() but as I thought, it doesn't
seem to work. Have you tried it under Windows? As far as I know alarm()
doesn't work under Windows.

But you gave me an idea to try using a Windows Timer event. I will see if it
works that way.

Teddy

----- Original Message -----
From: "Chris Boyce" <chris.boyce@xxxxxxxxxx>
To: "Octavian Rasnita" <orasnita@xxxxxxxxx>
Cc: "Ted Behling" <ted.behling@xxxxxxxxxxxxxxx>; <libwww@xxxxxxxx>
Sent: Thursday, November 09, 2006 12:22 AM
Subject: Re: timeout


> This is not so much a solution, as it is an alternative to the LWP
> timeout...
>
> I've had good luck just using an eval block around the request, and then
> making a simple signal catcher to do something if the alarm times out:
>
> use LWP::UserAgent;
> use HTTP::Cookies;
> use HTTP::Headers;
> use HTTP::Request;
> use HTTP::Response;
>
> $SIG{ALRM} = sub { die "timeout\n"; };
>
> $timeout=5;
>
> eval {
> # Set the alarm clock for timeout seconds
> alarm($timeout);
>
> # Run the request...
> $http_response = $agent->request($request);
>
> # If we're here, then the request didn't get zapped by the alarm...
> # reset the alarm to nada.
> alarm(0);
> };
>
> The word "timeout" will appear in the response if the alarm goes off.
> Sorry if this is crude, but it works great.
>
>
> -Chris
>
>
> On Thu, 2006-11-09 at 00:09 +0200, Octavian Rasnita wrote:
> > Hi,
> >
> > I've also tried without that "-" before "timeout", but it doesn't work.
I
> > have also tried with $ua->timeout(5), but it doesn't work either.
> >
> > Here is the test script and its result:
> >
> > use strict;
> > use LWP::UserAgent;
> >
> > my $begin = time();
> >
> > my $ua = LWP::UserAgent->new();
> > $ua->timeout(5);
> >
> > print $ua->get("http://www.presaromana.ro/";)->content;
> >
> > print time() - $begin;
> >
> > And the result is:
> > 500 Can't connect to www.presaromana.ro:80 (connect: Unknown error)
> > 23
> >
> > So it takes 23 seconds instead of timing out after 5.
> >
> > Is it a bug in LWP, or a limitation of Windows, or I am doing something
> > wrong?
> >
> > Thank you.
> >
> > Teddy
> >
> > ----- Original Message -----
> > From: "Ted Behling" <ted.behling@xxxxxxxxxxxxxxx>
> > To: "Octavian Rasnita" <orasnita@xxxxxxxxx>; <libwww@xxxxxxxx>
> > Sent: Wednesday, November 08, 2006 8:22 PM
> > Subject: RE: timeout
> >
> >
> > True. Or, Octavian, just leave out the hyphen from your timeout
> > parameter, as in:
> >
> > my $ua = LWP::UserAgent->new(timeout => 5);
> >
> > Ted Behling
> > ISP Systems Analyst, Hargray Communications
> > ted.behling@xxxxxxxxxxxxxxx
> >
> > -----Original Message-----
> > From: Eamon Daly [mailto:edaly@xxxxxxxxxxxxxxxxx]
> > Sent: Wednesday, November 08, 2006 10:36 AM
> > To: libwww@xxxxxxxx
> > Cc: Octavian Rasnita
> > Subject: Re: timeout
> >
> > From the LWP::UserAgent perldoc at
> >
> > http://search.cpan.org/~gaas/libwww-perl-5.805/lib/LWP/UserAgent.pm
> >
> > $ua->timeout( $secs )
> > Get/set the timeout value in seconds. The default timeout() value is
> > 180 seconds, i.e. 3 minutes.
> >
> > So in your first example, it should be:
> >
> > use strict;
> > use LWP::UserAgent;
> >
> > my $ua = LWP::UserAgent->new;
> > $ua->timeout(5);
> >
> > print $ua->get("http://www.presaromana.ro/";)->content;
> >
> > ____________________________________________________________
> > Eamon Daly
> >
> >
> >
> > ----- Original Message -----
> > From: "Octavian Rasnita" <orasnita@xxxxxxxxx>
> > To: <libwww@xxxxxxxx>
> > Sent: Wednesday, November 08, 2006 8:37 AM
> > Subject: timeout
> >
> >
> > : Hi,
> > :
> > : I am trying to create a very simple www client that times out after 5
> > : seconds. I have tried the 2 examples below, but none of them are
> > working.
> > : They don't time out even though the target site cannot be found.
> > : I think they time out after some more time.
> > :
> > : I have ran them under Windows 2000 with ActivePerl 5.8.8.
> > : Is it possible to do what I want?
> > :
> > : Thanks.
> > :
> > : use strict;
> > : use LWP::UserAgent;
> > :
> > : my $ua = LWP::UserAgent->new(-timeout => 5);
> > :
> > : print $ua->get("http://www.presaromana.ro/";)->content;
> > :
> > : __END__
> > :
> > : my $req = HTTP::Request->new("GET", "http://www.presaromana.ro/";);
> > : my $res = $ua->request($req);
> > :
> > : print $res->content();
> > :
> > :
> > : Teddy
> > :
> >
> >
> >
> --
> Chris Boyce
>
>




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