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<?php
/**
* Profiler sending messages over UDP.
*
* 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Profiler
*/
/**
* ProfilerSimpleUDP class, that sends out messages for 'udpprofile' daemon
* (see http://git.wikimedia.org/tree/operations%2Fsoftware.git/master/udpprofile)
*
* @ingroup Profiler
* @since 1.25
*/
class ProfilerOutputUdp extends ProfilerOutput {
/** @var int port to send profiling data to */
private $port = 3811;
/** @var string host to send profiling data to */
private $host = '127.0.0.1';
/** @var string format string for profiling data */
private $format = "%s - %d %f %f %f %f %s\n";
public function __construct( Profiler $collector, array $params ) {
parent::__construct( $collector, $params );
global $wgUDPProfilerPort, $wgUDPProfilerHost, $wgUDPProfilerFormatString;
// Initialize port, host, and format from config, back-compat if available
if ( isset( $this->params['udpport'] ) ) {
$this->port = $this->params['udpport'];
} elseif ( $wgUDPProfilerPort ) {
$this->port = $wgUDPProfilerPort;
}
if ( isset( $this->params['udphost'] ) ) {
$this->host = $this->params['udphost'];
} elseif ( $wgUDPProfilerHost ) {
$this->host = $wgUDPProfilerHost;
}
if ( isset( $this->params['udpformat'] ) ) {
$this->format = $this->params['udpformat'];
} elseif ( $wgUDPProfilerFormatString ) {
$this->format = $wgUDPProfilerFormatString;
}
}
public function canUse() {
# Sockets are not enabled
return function_exists( 'socket_create' );
}
public function log( array $stats ) {
$sock = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
$plength = 0;
$packet = "";
foreach ( $stats as $pfdata ) {
$pfline = sprintf( $this->format,
$this->collector->getProfileID(),
$pfdata['calls'],
$pfdata['cpu'] / 1000, // ms => sec
0.0, // sum of CPU^2 for each invocation (unused)
$pfdata['real'] / 1000, // ms => sec
0.0, // sum of real^2 for each invocation (unused)
$pfdata['name'],
$pfdata['memory']
);
$length = strlen( $pfline );
if ( $length + $plength > 1400 ) {
socket_sendto( $sock, $packet, $plength, 0, $this->host, $this->port );
$packet = "";
$plength = 0;
}
$packet .= $pfline;
$plength += $length;
}
socket_sendto( $sock, $packet, $plength, 0x100, $this->host, $this->port );
}
}
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