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<?php
/**
* $Id$
*
* Author: David Danier, david.danier@team23.de
* Project: Serverstats, http://serverstats.berlios.de/
* License: GPL v2 or later (http://www.gnu.org/licenses/gpl.html)
*
* Copyright (C) 2005 David Danier
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class memory extends source implements source_rrd
{
private $meminfofile;
private $data = array();
private $show = array();
public function __construct($show = null, $meminfofile = '/proc/meminfo')
{
$this->meminfofile = $meminfofile;
if (!isset($show))
{
$show = array(
'MemTotal',
'MemFree',
'Cached',
'SwapCached',
'SwapTotal',
'SwapFree'
);
}
if (!is_array($show))
{
$show = array($show);
}
$this->show = $show;
}
public function refreshData()
{
if (($temp = @file($this->meminfofile)) === false)
{
throw new Exception('Could not read "' . $this->meminfofile . '"');
}
foreach($temp as &$row)
{
if (preg_match('/^([a-zA-Z0-9_]{1,19})\s*:\s*([0-9\.]+)(\s*(.+))?$/', $row, $split))
{
if (isset($split[4]))
{
switch (strtolower($split[4]))
{
// without break!
case 'gb':
$split[2] *= 1024;
case 'mb':
$split[2] *= 1024;
case 'kb':
$split[2] *= 1024;
}
}
$this->data[$split[1]] = $split[2];
}
}
}
public function initRRD(rrd $rrd)
{
foreach ($this->data as $name => $value)
{
if (in_array($name, $this->show))
{
$rrd->addDatasource($name, 'GAUGE', null, 0);
}
}
}
public function fetchValues()
{
$values = array();
foreach ($this->data as $name => $value)
{
if (in_array($name, $this->show))
{
$values[$name] = $value;
}
}
return $values;
}
}
?>
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