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Man Pages


Manual Reference Pages  -  ANYEVENT::GEARMAN::WORKER (3)

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NAME

AnyEvent::Gearman::Worker - Gearman worker for AnyEvent application

CONTENTS

SYNOPSIS



    use AnyEvent::Gearman::Worker;
   
    # create gearman worker
    my $worker = AnyEvent::Gearman::Worker->new(
        job_servers => [127.0.0.1, 192.168.0.1:123],
    );
   
    # add worker function
    $worker->register_function( reverse => sub {
        my $job = shift;
        my $res = reverse $job->workload;
        $job->complete($res);
    });



DESCRIPTION

This is Gearman worker module for AnyEvent applications.

METHODS

    new(%options)

Create gearman worker object.



    my $worker = AnyEvent::Gearman::Worker->new(
        job_servers => [127.0.0.1, 192.168.0.1:123],
    );



Options are:
job_servers => ’ArrayRef’ List of gearman servers. ’host:port’ or just ’host’ formats are allowed. In latter case, gearman default port 4730 will be used.

You should set at least one job_server.

register_function( CW$function_name, CW$subref )

Register worker function.



    $worker->register_function( reverse => sub {
        my $job = shift;
        my $res = reverse $job->workload;
        $job->complete($res);
    });



$function_name is function name string to register.

$subref is worker CodeRef that will be executed when the worker received a request for this function. And it will be passed a AnyEvent::Gearman::Job object representing the job that has been received by the worker.

NOTE: Unlike Gearman::Worker, this module ignore $subref’s return value. So you should call either $job->complete or $job->fail at least.

This is because this module stands AnyEvent’s asynchronous way, and this way more flexible in AnyEvent world.

For example:



    $worker->register_function( reverse => sub {
        my $job = shift;

        my $t; $t = AnyEvent->timer(
            after => 10,
            cb    => sub {
                undef $t;
                $job->complete(done!);
            },
        );
    });



This is simplest and meaningless codes but you can write worker process with AnyEvent way. This is asynchronous worker.

unregister_function( CW$function_name )

Unregister worker function, notifying to server that this worker no longer handle $function_name.

AUTHOR

Daisuke Murase <typester@cpan.org>

Pedro Melo <melo@cpan.org>

COPYRIGHT AND LICENSE

Copyright (c) 2009 by KAYAC Inc.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The full text of the license can be found in the LICENSE file included with this module.

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perl v5.20.3 ANYEVENT::GEARMAN::WORKER (3) 2013-02-05

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