The role

1.12

Please note that this version contains some annoying errors mistakes. Use 1.17 instead. See the explanations from marioroy below in this thread.

package MyRole;

#     $Id: MyRole.pm,v 1.12 2017/06/17 14:00:17 karl Exp karl $

use Role::Tiny;
use threads;
use MCE::Loop;
use MCE::Shared;
use MCE::Mutex;
use WWW::Curl::Easy;
use Config::Tiny;

my $cfg = Config::Tiny->read(q(MyRole.cfg));

MCE::Loop::init {
    max_workers => $cfg->{params}->{workers},
    chunk_size  => 1,
    interval    => $cfg->{params}->{interval},
};

my $fetch = sub {
    my $curl = WWW::Curl::Easy->new;
    my ( $header, $body );
    $curl->setopt( CURLOPT_URL,            shift );
    $curl->setopt( CURLOPT_WRITEHEADER,    \$header );
    $curl->setopt( CURLOPT_WRITEDATA,      \$body );
    $curl->setopt( CURLOPT_FOLLOWLOCATION, $cfg->{params}->{followloca
+tion} );
    $curl->setopt( CURLOPT_TIMEOUT,        $cfg->{params}->{timeout} )
+;
    $curl->perform;
    {
        header => $header,
        body   => $body,
        info   => $curl->getinfo(CURLINFO_HTTP_CODE),
        error  => $curl->errbuf,
    };
};

sub uagent {
    my $urls   = $_[1];
    my $shared = MCE::Shared->hash;
    my $mutex  = MCE::Mutex->new;
    mce_loop {
        MCE->yield;
        $mutex->enter( $shared->set( $_ => $fetch->($_) ) );
    }
    $urls;
    my $iter = $shared->iterator();
    my $result;
    while ( my ( $url, $data ) = $iter->() ) {
        $result->{$url} = $data;
    }
    $result;
}

1;

__END__

[download]
1.17
package MyRole;

#     $Id: MyRole.pm,v 1.17 2017/06/18 08:45:19 karl Exp karl $

use Role::Tiny;
use threads;
use MCE::Loop;
use MCE::Shared;
use WWW::Curl::Easy;
use Config::Tiny;

my $cfg = Config::Tiny->read(q(MyRole.cfg));

MCE::Loop::init {
    max_workers => $cfg->{params}->{workers},
    chunk_size  => 1,
    interval    => $cfg->{params}->{interval},
};

my $fetch = sub {
    my $curl = WWW::Curl::Easy->new;
    my ( $header, $body );
    $curl->setopt( CURLOPT_URL,            shift );
    $curl->setopt( CURLOPT_WRITEHEADER,    \$header );
    $curl->setopt( CURLOPT_WRITEDATA,      \$body );
    $curl->setopt( CURLOPT_FOLLOWLOCATION, $cfg->{params}->{followloca
+tion} );
    $curl->setopt( CURLOPT_TIMEOUT,        $cfg->{params}->{timeout} )
+;
    $curl->perform;
    {
        header => $header,
        body   => $body,
        info   => $curl->getinfo(CURLINFO_HTTP_CODE),
        error  => $curl->errbuf,
    };
};

sub uagent {
    my $urls   = $_[1];
    my $shared = MCE::Shared->hash;
    mce_loop {
        MCE->yield;
        $shared->set( $_ => $fetch->($_) );
    }
    $urls;
    $shared->export;
}

1;

__END__

[download]

The config file

#    $Id: MyRole.cfg,v 1.4 2017/06/17 13:48:19 karl Exp karl $    

[params]
timeout=10
followlocation=1
interval=0.005
workers=auto

[download]

The class

#     $Id: MyClass.pm,v 1.5 2017/06/16 15:35:32 karl Exp karl $
package MyClass;
use Class::Tiny;
use Role::Tiny::With;
with qw(MyRole);
1;

__END__

[download]

The app

#!/usr/bin/env perl
#     $Id: run.pl,v 1.14 2017/06/17 14:43:57 karl Exp karl $

use strict;
use warnings;
use MyClass;
use Data::Dump;
use HTML::Strip::Whitespace qw(html_strip_whitespace);
use feature qw(say);

my @urls = grep { $_ ne "" } <DATA>;

chomp @urls;

my $object = MyClass->new;

my $result = $object->uagent( \@urls );

# dd $result;

while ( my ( $url, $data ) = each %$result ) {
    say qq($url);
    say $data->{header};
#     my $html;
#     html_strip_whitespace(
#         'source' => \$data->{body},
#         'out'    => \$html
#     );
#     say $html;
}

__DATA__
http://fantasy.xecu.net
http://perlmonks.org
http://stackoverflow.com
http://www.trumptowerny.com
http://www.maralagoclub.com
http://www.sundialservices.com

[download]

Update: Fixed mistakes. Thank you marioroy.

Update2: Deleted unused module.

Best regards, Karl

«The Crux of the Biscuit is the Apostrophe»

Furthermore I consider that Donald Trump must be impeached as soon as possible

In reply to Yet another example to get URLs in parallel by karlgoethebier

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