return true;
}
+ function keys() {
+ /* stub */
+ return array();
+ }
+
/* *** Emulated functions *** */
/* Better performance can likely be got with custom written versions */
function get_multi($keys) {
*/
var $bag;
- function HashBagOStuff() {
+ function __construct() {
$this->bag = array();
}
unset($this->bag[$key]);
return true;
}
+
+ function keys() {
+ return array_keys( $this->bag );
+ }
}
/*
var $table;
var $lastexpireall = 0;
- function SqlBagOStuff($tablename = 'objectcache') {
+ function __construct($tablename = 'objectcache') {
$this->table = $tablename;
}
}
if($row=$this->_fetchobject($res)) {
$this->_debug("get: retrieved data; exp time is " . $row->exptime);
- if ( $row->exptime != $this->_maxdatetime() &&
- wfTimestamp( TS_UNIX, $row->exptime ) < time() )
+ if ( $row->exptime != $this->_maxdatetime() &&
+ wfTimestamp( TS_UNIX, $row->exptime ) < time() )
{
$this->_debug("get: key has expired, deleting");
$this->delete($key);
}
function set($key,$value,$exptime=0) {
+ if ( wfReadOnly() ) {
+ return false;
+ }
$exptime = intval($exptime);
if($exptime < 0) $exptime = 0;
if($exptime == 0) {
}
function delete($key,$time=0) {
+ if ( wfReadOnly() ) {
+ return false;
+ }
$this->_query(
"DELETE FROM $0 WHERE keyname='$1'", $key );
return true; /* ? */
}
+ function keys() {
+ $res = $this->_query( "SELECT keyname FROM $0" );
+ if(!$res) {
+ $this->_debug("keys: ** error: " . $this->_dberror($res) . " **");
+ return array();
+ }
+ $result = array();
+ while( $row = $this->_fetchobject($res) ) {
+ $result[] = $row->keyname;
+ }
+ return $result;
+ }
+
function getTableName() {
return $this->table;
}
function expireall() {
/* Remove any items that have expired */
+ if ( wfReadOnly() ) {
+ return false;
+ }
$now = $this->_fromunixtime( time() );
$this->_query( "DELETE FROM $0 WHERE exptime < '$now'" );
}
function deleteall() {
/* Clear *all* items from cache table */
+ if ( wfReadOnly() ) {
+ return false;
+ }
$this->_query( "DELETE FROM $0" );
}
}
return $val;
}
-
+
function set($key, $value, $exptime=0) {
apc_store($key, serialize($value), $exptime);
return true;
}
-
+
function delete($key, $time=0) {
apc_delete($key);
return true;
}
}
+/**
+ * Wrapper for XCache object caching functions; identical interface
+ * to the APC wrapper
+ */
+class XCacheBagOStuff extends BagOStuff {
+
+ /**
+ * Get a value from the XCache object cache
+ *
+ * @param string $key Cache key
+ * @return mixed
+ */
+ public function get( $key ) {
+ $val = xcache_get( $key );
+ if( is_string( $val ) )
+ $val = unserialize( $val );
+ return $val;
+ }
+
+ /**
+ * Store a value in the XCache object cache
+ *
+ * @param string $key Cache key
+ * @param mixed $value Object to store
+ * @param int $expire Expiration time
+ * @return bool
+ */
+ public function set( $key, $value, $expire = 0 ) {
+ xcache_set( $key, serialize( $value ), $expire );
+ return true;
+ }
+
+ /**
+ * Remove a value from the XCache object cache
+ *
+ * @param string $key Cache key
+ * @param int $time Not used in this implementation
+ * @return bool
+ */
+ public function delete( $key, $time = 0 ) {
+ xcache_unset( $key );
+ return true;
+ }
+
+}
+
/**
* @todo document
*/
class DBABagOStuff extends BagOStuff {
var $mHandler, $mFile, $mReader, $mWriter, $mDisabled;
-
+
function __construct( $handler = 'db3', $dir = false ) {
if ( $dir === false ) {
global $wgTmpDirectory;
}
$this->mFile = "$dir/mw-cache-" . wfWikiID();
$this->mFile .= '.db';
+ wfDebug( __CLASS__.": using cache file {$this->mFile}\n" );
$this->mHandler = $handler;
}
if ( !is_string( $blob ) ) {
return array( null, 0 );
} else {
- return array(
+ return array(
unserialize( substr( $blob, 11 ) ),
intval( substr( $blob, 0, 10 ) )
);
function delete( $key, $time = 0 ) {
wfProfileIn( __METHOD__ );
+ wfDebug( __METHOD__."($key)\n" );
$handle = $this->getWriter();
if ( !$handle ) {
return false;
wfProfileOut( __METHOD__ );
return $ret;
}
+
+ function keys() {
+ $reader = $this->getReader();
+ $k1 = dba_firstkey( $reader );
+ if( !$k1 ) {
+ return array();
+ }
+ $result[] = $k1;
+ while( $key = dba_nextkey( $reader ) ) {
+ $result[] = $key;
+ }
+ return $result;
+ }
}
-
-?>