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<?php
/**
* Author: Michael Richter, mr@osor.de
* Project: Serverstats, http://serverstats.berlios.de/
* License: GPL v2 or later (http://www.gnu.org/licenses/gpl.html)
*
* Copyright (C) 2005 Michael Richter
*
* 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 traffic_proc extends source implements source_rrd
{
private $ifs;
private $data;
private $procfile;
public function __construct($ifs = 'eth0', $procfile = '/proc/net/dev')
{
if (is_string($ifs))
{
$ifs = array($ifs);
}
if (!is_array($ifs))
{
throw new Exception('Parameter must be an array');
}
$this->ifs = $ifs;
$this->data = array();
$this->procfile = $procfile;
}
public function refreshData()
{
if (($lines = @file($this->procfile)) === false)
{
throw new Exception('Could not read ' . $this->procfile);
}
foreach($lines as $line)
{
if (preg_match('/^\s*([\w\d\.\-]+):\s*(\d+)\s+(\d+)\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+(\d+)\s+(\d+)\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+\s+\d+/', $line, $m))
{
if (in_array($m[1], $this->ifs))
{
$this->data[$m[1]] = array(
'rbytes' => $m[2],
'rpackets' => $m[3],
'tbytes' => $m[4],
'tpackets' => $m[5]
);
}
}
}
}
public function initRRD(rrd $rrd)
{
foreach ($this->ifs as $if)
{
$rrd->addDatasource($if . '_rbytes', 'COUNTER', null, 0, 4294967295);
$rrd->addDatasource($if . '_rpackets', 'COUNTER', null, 0, 4294967295);
$rrd->addDatasource($if . '_tbytes', 'COUNTER', null, 0, 4294967295);
$rrd->addDatasource($if . '_tpackets', 'COUNTER', null, 0, 4294967295);
}
}
public function fetchValues()
{
$values = array();
foreach ($this->ifs as $if)
{
if (isset($this->data[$if]))
{
$values[$if . '_rbytes'] = $this->data[$if]['rbytes'];
$values[$if . '_rpackets'] = $this->data[$if]['rpackets'];
$values[$if . '_tbytes'] = $this->data[$if]['tbytes'];
$values[$if . '_tpackets'] = $this->data[$if]['tpackets'];
}
}
return $values;
}
}
?>
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