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 ProfilerSimple {
  31         public function isPersistent() {
  32                 return true;
  33         }
  34
  35         public function logData() {
  36                 global $wgUDPProfilerHost, $wgUDPProfilerPort, $wgUDPProfilerFormatString;
  37
  38                 $this->close();
  39
  40                 if ( isset( $this->mCollated['-total'] ) && $this->mCollated['-total']['real'] < $this->mMinimumTime ) {
  41                         # Less than minimum, ignore
  42                         return;
  43                 }
  44
  45                 if ( !function_exists( 'socket_create' ) ) {
  46                         # Sockets are not enabled
  47                         return;
  48                 }
  49
  50                 $sock = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
  51                 $plength = 0;
  52                 $packet = "";
  53                 foreach ( $this->mCollated as $entry => $pfdata ) {
  54                         if ( !isset( $pfdata['count'] )
  55                                 || !isset( $pfdata['cpu'] )
  56                                 || !isset( $pfdata['cpu_sq'] )
  57                                 || !isset( $pfdata['real'] )
  58                                 || !isset( $pfdata['real_sq'] ) ) {
  59                                 continue;
  60                         }
  61                         $pfline = sprintf( $wgUDPProfilerFormatString, $this->getProfileID(), $pfdata['count'],
  62                                 $pfdata['cpu'], $pfdata['cpu_sq'], $pfdata['real'], $pfdata['real_sq'], $entry );
  63                         $length = strlen( $pfline );
  64                         /* printf("<!-- $pfline -->"); */
  65                         if ( $length + $plength > 1400 ) {
  66                                 socket_sendto( $sock, $packet, $plength, 0, $wgUDPProfilerHost, $wgUDPProfilerPort );
  67                                 $packet = "";
  68                                 $plength = 0;
  69                         }
  70                         $packet .= $pfline;
  71                         $plength += $length;
  72                 }
  73                 socket_sendto( $sock, $packet, $plength, 0x100, $wgUDPProfilerHost, $wgUDPProfilerPort );
  74         }
  75 }