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.\" ========================================================================
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.IX Title "AnyEvent::Gearman::Worker 3pm"
.TH AnyEvent::Gearman::Worker 3pm "2016-12-07" "perl v5.24.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
AnyEvent::Gearman::Worker \- Gearman worker for AnyEvent application
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    use AnyEvent::Gearman::Worker;
\&    
\&    # create gearman worker
\&    my $worker = AnyEvent::Gearman::Worker\->new(
\&        job_servers => [\*(Aq127.0.0.1\*(Aq, \*(Aq192.168.0.1:123\*(Aq],
\&    );
\&    
\&    # add worker function
\&    $worker\->register_function( reverse => sub {
\&        my $job = shift;
\&        my $res = reverse $job\->workload;
\&        $job\->complete($res);
\&    });
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This is Gearman worker module for AnyEvent applications.
.SH "METHODS"
.IX Header "METHODS"
.SS "new(%options)"
.IX Subsection "new(%options)"
Create gearman worker object.
.PP
.Vb 3
\&    my $worker = AnyEvent::Gearman::Worker\->new(
\&        job_servers => [\*(Aq127.0.0.1\*(Aq, \*(Aq192.168.0.1:123\*(Aq],
\&    );
.Ve
.PP
Options are:
.IP "job_servers => 'ArrayRef'" 4
.IX Item "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.
.Sp
You should set at least one job_server.
.ie n .SS "register_function( $function_name, $subref )"
.el .SS "register_function( \f(CW$function_name\fP, \f(CW$subref\fP )"
.IX Subsection "register_function( $function_name, $subref )"
Register worker function.
.PP
.Vb 5
\&    $worker\->register_function( reverse => sub {
\&        my $job = shift;
\&        my $res = reverse $job\->workload;
\&        $job\->complete($res);
\&    });
.Ve
.PP
\&\f(CW$function_name\fR is function name string to register.
.PP
\&\f(CW$subref\fR 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.
.PP
\&\s-1NOTE:\s0 Unlike Gearman::Worker, this module ignore \f(CW$subref\fR's return value.
So you should call either \f(CW\*(C`$job\->complete\*(C'\fR or \f(CW\*(C`$job\->fail\*(C'\fR at least.
.PP
This is because this module stands AnyEvent's asynchronous way, and this way more flexible in AnyEvent world.
.PP
For example:
.PP
.Vb 2
\&    $worker\->register_function( reverse => sub {
\&        my $job = shift;
\&
\&        my $t; $t = AnyEvent\->timer(
\&            after => 10,
\&            cb    => sub {
\&                undef $t;
\&                $job\->complete(\*(Aqdone!\*(Aq);
\&            },
\&        );
\&    });
.Ve
.PP
This is simplest and meaningless codes but you can write worker process with AnyEvent way. This is asynchronous worker.
.ie n .SS "unregister_function( $function_name )"
.el .SS "unregister_function( \f(CW$function_name\fP )"
.IX Subsection "unregister_function( $function_name )"
Unregister worker function, notifying to server that this worker no longer handle \f(CW$function_name\fR.
.SH "AUTHOR"
.IX Header "AUTHOR"
Daisuke Murase <typester@cpan.org>
.PP
Pedro Melo <melo@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright (c) 2009 by \s-1KAYAC\s0 Inc.
.PP
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
.PP
The full text of the license can be found in the
\&\s-1LICENSE\s0 file included with this module.