includes/profiler/ProfilerSimpleUDP.php

   1 <?php
   2 /**
   3  * Profiler sending messages over UDP.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Profiler
  22  */
  23
  24 /**
  25  * ProfilerSimpleUDP class, that sends out messages for 'udpprofile' daemon
  26  * (the one from
  27  *  http://git.wikimedia.org/tree/operations%2Fsoftware.git/master/udpprofile)
  28  * @ingroup Profiler
  29  */
  30 class ProfilerSimpleUDP extends Profiler {
  31         protected function collateOnly() {
  32                 return true;
  33         }
  34
  35         public function isPersistent() {
  36                 return true;
  37         }
  38
  39         public function logData() {
  40                 global $wgUDPProfilerHost, $wgUDPProfilerPort, $wgUDPProfilerFormatString;
  41
  42                 $this->close();
  43
  44                 if ( isset( $this->mCollated['-total'] ) ) {
  45                         # Less than minimum, ignore
  46                         return;
  47                 }
  48
  49                 if ( !function_exists( 'socket_create' ) ) {
  50                         # Sockets are not enabled
  51                         return;
  52                 }
  53
  54                 $sock = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
  55                 $plength = 0;
  56                 $packet = "";
  57                 foreach ( $this->mCollated as $entry => $pfdata ) {
  58                         if ( !isset( $pfdata['count'] )
  59                                 || !isset( $pfdata['cpu'] )
  60                                 || !isset( $pfdata['cpu_sq'] )
  61                                 || !isset( $pfdata['real'] )
  62                                 || !isset( $pfdata['real_sq'] ) ) {
  63                                 continue;
  64                         }
  65                         $pfline = sprintf( $wgUDPProfilerFormatString, $this->getProfileID(), $pfdata['count'],
  66                                 $pfdata['cpu'], $pfdata['cpu_sq'], $pfdata['real'], $pfdata['real_sq'], $entry );
  67                         $length = strlen( $pfline );
  68                         /* printf("<!-- $pfline -->"); */
  69                         if ( $length + $plength > 1400 ) {
  70                                 socket_sendto( $sock, $packet, $plength, 0, $wgUDPProfilerHost, $wgUDPProfilerPort );
  71                                 $packet = "";
  72                                 $plength = 0;
  73                         }
  74                         $packet .= $pfline;
  75                         $plength += $length;
  76                 }
  77                 socket_sendto( $sock, $packet, $plength, 0x100, $wgUDPProfilerHost, $wgUDPProfilerPort );
  78         }
  79 }