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PATH: opt / fastcomet / nightwatch / Fastcomet / Nightwatch / DataGetter

package Fastcomet::Nightwatch::DataGetter::Memory;

=head1 Perl Artistic License

Copyright 2013 Linode, LLC.  Longview is made available under the terms
of the Perl Artistic License, or GPLv2 at the recipients discretion.

=head2 Perl Artistic License

Read it at L<http://dev.perl.org/licenses/artistic.html>.

=head2 GNU General Public License (GPL) Version 2

This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

You should have received a copy of the GNU General Public License
  along with this program.  If not, see http://www.gnu.org/licenses/

See the full license at L<http://www.gnu.org/licenses/>.

=cut

use strict;
use warnings;

use Fastcomet::Nightwatch::Util ':BASIC';

our $DEPENDENCIES = [];

sub get {
	my (undef, $dataref) = @_;

$logger->trace('Collecting memory info');

my $meminfo = slurp_file( $PROCFS . 'meminfo' ) or do {
		$logger->info("Couldn't read ${PROCFS}meminfo: $!");
		return $dataref;
	};

# We need to "numify" these matches to make JSON::PP not-quote
	( $dataref->{memory}->{real}->{free} )    = ( $meminfo =~ /MemFree:\s+(\d+)/ )[0] + 0;
	( $dataref->{memory}->{real}->{buffers} ) = ( $meminfo =~ /Buffers:\s+(\d+)/ )[0] + 0;
	( $dataref->{memory}->{real}->{cache} )   = ( $meminfo =~ /Cached:\s+(\d+)/ )[0] + 0;
	( $dataref->{memory}->{real}->{used} )
		= ( $meminfo =~ /MemTotal:\s+(\d+)/ )[0]
		- ( $meminfo =~ /MemFree:\s+(\d+)/ )[0];
	( $dataref->{memory}->{swap}->{used} )
		= ( $meminfo =~ /SwapTotal:\s+(\d+)/ )[0]
		- ( $meminfo =~ /SwapFree:\s+(\d+)/ )[0];
	( $dataref->{memory}->{swap}->{free} ) = ( $meminfo =~ /SwapFree:\s+(\d+)/ )[0] + 0;
	return $dataref;
}

[+] Applications
[+] Packages
[-] Disk.pm [edit]
[+] ..
[-] Load.pm [edit]
[-] Ports.pm [edit]
[-] Network.pm [edit]
[-] Processes.pm [edit]
[-] Memory.pm [edit]
[-] CPU.pm [edit]
[-] SysInfo.pm [edit]