maintenance/mcc.php

   1 <?php
   2 /**
   3  * memcached diagnostic tool
   4  *
   5  * @todo document
   6  * @package MediaWiki
   7  * @subpackage Maintenance
   8  */
   9
  10 /** */
  11 require_once( 'commandLine.inc' );
  12 require_once( 'memcached-client.php' );
  13
  14 $mcc = new memcached( array('persistant' => true/*, 'debug' => true*/) );
  15 $mcc->set_servers( $wgMemCachedServers );
  16 #$mcc->set_debug( true );
  17
  18 function mccShowHelp($command) {
  19
  20         if(! $command ) { $command = 'fullhelp'; }
  21         $onlyone = true;
  22
  23         switch ( $command ) {
  24
  25                 case 'fullhelp':
  26                         // will show help for all commands
  27                         $onlyone = false;
  28
  29                 case 'get':
  30                         print "get: grabs something\n";
  31                 if($onlyone) { break; }
  32
  33                 case 'getsock':
  34                         print "getsock: lists sockets\n";
  35                 if($onlyone) { break; }
  36
  37                 case 'set':
  38                         print "set: changes something\n";
  39                 if($onlyone) { break; }
  40
  41                 case 'delete':
  42                         print "delete: deletes something\n";
  43                 if($onlyone) { break; }
  44
  45                 case 'history':
  46                         print "history: show command line history\n";
  47                 if($onlyone) { break; }
  48
  49                 case 'server':
  50                         print "server: show current memcached server\n";
  51                 if($onlyone) { break; }
  52
  53                 case 'dumpmcc':
  54                         print "dumpmcc: shows the whole thing\n";
  55                 if($onlyone) { break; }
  56
  57                 case 'exit':
  58                 case 'quit':
  59                         print "exit or quit: exit mcc\n";
  60                 if($onlyone) { break; }
  61
  62                 case 'help':
  63                         print "help: help about a command\n";
  64                 if($onlyone) { break; }
  65
  66                 default:
  67                         if($onlyone) {
  68                                 print "$command: command does not exist or no help for it\n";
  69                         }
  70         }
  71 }
  72
  73 do {
  74         $bad = false;
  75         $showhelp = false;
  76         $quit = false;
  77
  78         $line = readconsole( '> ' );
  79         if ($line === false) exit;
  80
  81         $args = explode( ' ', $line );
  82         $command = array_shift( $args );
  83
  84         // process command
  85         switch ( $command ) {
  86                 case 'help':
  87                         // show an help message
  88                         mccShowHelp(array_shift($args));
  89                 break;
  90
  91                 case 'get':
  92                         print "Getting {$args[0]}[{$args[1]}]\n";
  93                         $res = $mcc->get( $args[0] );
  94                         if ( array_key_exists( 1, $args ) ) {
  95                                 $res = $res[$args[1]];
  96                         }
  97                         if ( $res === false ) {
  98                                 #print 'Error: ' . $mcc->error_string() . "\n";
  99                                 print "MemCached error\n";
 100                         } elseif ( is_string( $res ) ) {
 101                                 print "$res\n";
 102                         } else {
 103                                 var_dump( $res );
 104                         }
 105                 break;
 106
 107                 case 'getsock':
 108                         $res = $mcc->get( $args[0] );
 109                         $sock = $mcc->get_sock( $args[0] );
 110                         var_dump( $sock );
 111                         break;
 112
 113                 case 'server':
 114                         $res = $mcc->get( $args[0] );
 115                         $hv = $mcc->_hashfunc( $args[0] );
 116                         for ( $i = 0; $i < 3; $i++ ) {
 117                                 print $mcc->_buckets[$hv % $mcc->_bucketcount] . "\n";
 118                                 $hv += $mcc->_hashfunc( $i . $args[0] );
 119                         }
 120                         break;
 121
 122                 case 'set':
 123                         $key = array_shift( $args );
 124                         if ( $args[0] == "#" && is_numeric( $args[1] ) ) {
 125                                 $value = str_repeat( '*', $args[1] );
 126                         } else {
 127                                 $value = implode( ' ', $args );
 128                         }
 129                         if ( !$mcc->set( $key, $value, 0 ) ) {
 130                                 #print 'Error: ' . $mcc->error_string() . "\n";
 131                                 print "MemCached error\n";
 132                         }
 133                         break;
 134
 135                 case 'delete':
 136                         $key = implode( ' ', $args );
 137                         if ( !$mcc->delete( $key ) ) {
 138                                 #print 'Error: ' . $mcc->error_string() . "\n";
 139                                 print "MemCached error\n";
 140                         }
 141                         break;
 142
 143                 case 'history':
 144                         if ( function_exists( 'readline_list_history' ) ) {
 145                                 foreach( readline_list_history() as $num => $line) {
 146                                         print "$num: $line\n";
 147                                 }
 148                         } else {
 149                                 print "readline_list_history() not available\n";
 150                         }
 151                         break;
 152
 153                 case 'dumpmcc':
 154                         var_dump( $mcc );
 155                         break;
 156
 157                 case 'quit':
 158                 case 'exit':
 159                         $quit = true;
 160                         break;
 161
 162                 default:
 163                         $bad = true;
 164         } // switch() end
 165
 166         if ( $bad ) {
 167                 if ( $command ) {
 168                         print "Bad command\n";
 169                 }
 170         } else {
 171                 if ( function_exists( 'readline_add_history' ) ) {
 172                         readline_add_history( $line );
 173                 }
 174         }
 175 } while ( !$quit );
 176
 177 ?>