7 * FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
8 * It acts as a memcached server with no RAM, that is, all objects are
9 * cleared the moment they are set. All set operations succeed and all
10 * get operations return null.
13 class FakeMemCachedClient
{
14 function add ($key, $val, $exp = 0) { return true; }
15 function decr ($key, $amt=1) { return null; }
16 function delete ($key, $time = 0) { return false; }
17 function disconnect_all () { }
18 function enable_compress ($enable) { }
19 function forget_dead_hosts () { }
20 function get ($key) { return null; }
21 function get_multi ($keys) { return array_pad(array(), count($keys), null); }
22 function incr ($key, $amt=1) { return null; }
23 function replace ($key, $value, $exp=0) { return false; }
24 function run_command ($sock, $cmd) { return null; }
25 function set ($key, $value, $exp=0){ return true; }
26 function set_compress_threshold ($thresh){ }
27 function set_debug ($dbg) { }
28 function set_servers ($list) { }
35 function &wfGetCache( $inputType ) {
36 global $wgCaches, $wgMemCachedServers, $wgMemCachedDebug, $wgMemCachedPersistent;
39 if ( $inputType == CACHE_ANYTHING
) {
41 $type = key( $wgCaches );
42 if ( $type === false ||
$type === CACHE_NONE
) {
49 if ( $type == CACHE_MEMCACHED
) {
50 if ( !array_key_exists( CACHE_MEMCACHED
, $wgCaches ) ){
51 require_once( 'memcached-client.php' );
53 if (!class_exists("MemcachedClientforWiki")) {
54 class MemCachedClientforWiki
extends memcached
{
55 function _debugprint( $text ) {
56 wfDebug( "memcached: $text\n" );
61 $wgCaches[CACHE_DB
] = new MemCachedClientforWiki(
62 array('persistant' => $wgMemCachedPersistent, 'compress_threshold' => 1500 ) );
63 $cache =& $wgCaches[CACHE_DB
];
64 $cache->set_servers( $wgMemCachedServers );
65 $cache->set_debug( $wgMemCachedDebug );
67 } elseif ( $type == CACHE_ACCEL
) {
68 if ( !array_key_exists( CACHE_ACCEL
, $wgCaches ) ) {
69 if ( function_exists( 'eaccelerator_get' ) ) {
70 $wgCaches[CACHE_ACCEL
] = new eAccelBagOStuff
;
71 } elseif ( function_exists( 'apc_fetch') ) {
72 $wgCaches[CACHE_ACCEL
] = new APCBagOStuff
;
73 } elseif( function_exists( 'xcache_get' ) ) {
74 $wgCaches[CACHE_ACCEL
] = new XCacheBagOStuff();
75 } elseif ( function_exists( 'mmcache_get' ) ) {
76 $wgCaches[CACHE_ACCEL
] = new TurckBagOStuff
;
78 $wgCaches[CACHE_ACCEL
] = false;
81 if ( $wgCaches[CACHE_ACCEL
] !== false ) {
82 $cache =& $wgCaches[CACHE_ACCEL
];
84 } elseif ( $type == CACHE_DBA
) {
85 if ( !array_key_exists( CACHE_DBA
, $wgCaches ) ) {
86 $wgCaches[CACHE_DBA
] = new DBABagOStuff
;
88 $cache =& $wgCaches[CACHE_DBA
];
91 if ( $type == CACHE_DB ||
( $inputType == CACHE_ANYTHING
&& $cache === false ) ) {
92 if ( !array_key_exists( CACHE_DB
, $wgCaches ) ) {
93 $wgCaches[CACHE_DB
] = new MediaWikiBagOStuff('objectcache');
95 $cache =& $wgCaches[CACHE_DB
];
98 if ( $cache === false ) {
99 if ( !array_key_exists( CACHE_NONE
, $wgCaches ) ) {
100 $wgCaches[CACHE_NONE
] = new FakeMemCachedClient
;
102 $cache =& $wgCaches[CACHE_NONE
];
108 function &wfGetMainCache() {
109 global $wgMainCacheType;
110 $ret =& wfGetCache( $wgMainCacheType );
114 function &wfGetMessageCacheStorage() {
115 global $wgMessageCacheType;
116 $ret =& wfGetCache( $wgMessageCacheType );
120 function &wfGetParserCacheStorage() {
121 global $wgParserCacheType;
122 $ret =& wfGetCache( $wgParserCacheType );