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=head1 NAME
Sys::Statistics::Linux::LoadAVG - Collect linux load average statistics.
=head1 SYNOPSIS
    use Sys::Statistics::Linux::LoadAVG;
    my $lxs  = Sys::Statistics::Linux::LoadAVG->new;
    my $stat = $lxs->get;
=head1 DESCRIPTION
Sys::Statistics::Linux::LoadAVG gathers the load average from the virtual F</proc> filesystem (procfs).
For more informations read the documentation of the front-end module L<Sys::Statistics::Linux>.
=head1 LOAD AVERAGE STATISTICS
Generated by F</proc/loadavg>.
    avg_1   -  The average processor workload of the last minute.
    avg_5   -  The average processor workload of the last five minutes.
    avg_15  -  The average processor workload of the last fifteen minutes.
=head1 METHODS
=head2 new()
Call C<new()> to create a new object.
    my $lxs = Sys::Statistics::Linux::LoadAVG->new;
=head2 get()
Call C<get()> to get the statistics. C<get()> returns the statistics as a hash reference.
    my $stat = $lxs->get;
=head1 EXPORTS
No exports.
=head1 SEE ALSO
B<proc(5)>
=head1 REPORTING BUGS
Please report all bugs to <jschulz.cpan(at)bloonix.de>.
=head1 AUTHOR
Jonny Schulz <jschulz.cpan(at)bloonix.de>.
=head1 COPYRIGHT
Copyright (c) 2006, 2007 by Jonny Schulz. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
=cut
package Sys::Statistics::Linux::LoadAVG;
our $VERSION = '0.06';
use strict;
use warnings;
use Carp qw(croak);
sub new {
    my $class = shift;
    my %self = (
        files => {
            loadavg => '/proc/loadavg',
        }
    );
    return bless \%self, $class;
}
sub get {
    my $self  = shift;
    my $class = ref $self;
    my $file  = $self->{files};
    my %lavg  = ();
    open my $fh, '<', $file->{loadavg} or croak "$class: unable to open $file->{loadavg} ($!)";
    ( $lavg{avg_1}
    , $lavg{avg_5}
    , $lavg{avg_15}
    ) = (split /\s+/, <$fh>)[0..2];
    close($fh);
    return \%lavg;
}
1;