maintenance/mcc.php

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