wiki.techinc.nl/includes/libs/objectcache/WinCacheBagOStuff.php
Aaron Schulz 5c8ef13306 Add WRITE_SYNC flag to BagOStuff::set()/merge()
* This blocks on writing to all replicas
  and returns false if any failed.
* This is useful if ChronologyProtector is to work across
  domains by having the writes go everywhere so that later
  reads will see them (and be local at the same time).
* Redundant doc comments were also removed.

Change-Id: I9ed098d563c64dba605e7809bc96731da3b3e79d
2015-10-22 01:44:09 +00:00

74 lines
2.1 KiB
PHP

<?php
/**
* Object caching using WinCache.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Cache
*/
/**
* Wrapper for WinCache object caching functions; identical interface
* to the APC wrapper
*
* @ingroup Cache
*/
class WinCacheBagOStuff extends BagOStuff {
protected function doGet( $key, $flags = 0 ) {
$casToken = null;
return $this->getWithToken( $key, $casToken, $flags );
}
protected function getWithToken( $key, &$casToken, $flags = 0 ) {
$val = wincache_ucache_get( $key );
$casToken = $val;
if ( is_string( $val ) ) {
$val = unserialize( $val );
}
return $val;
}
public function set( $key, $value, $expire = 0, $flags = 0 ) {
$result = wincache_ucache_set( $key, serialize( $value ), $expire );
/* wincache_ucache_set returns an empty array on success if $value
was an array, bool otherwise */
return ( is_array( $result ) && $result === array() ) || $result;
}
protected function cas( $casToken, $key, $value, $exptime = 0 ) {
return wincache_ucache_cas( $key, $casToken, serialize( $value ) );
}
public function delete( $key ) {
wincache_ucache_delete( $key );
return true;
}
public function merge( $key, $callback, $exptime = 0, $attempts = 10, $flags = 0 ) {
if ( !is_callable( $callback ) ) {
throw new Exception( "Got invalid callback." );
}
return $this->mergeViaCas( $key, $callback, $exptime, $attempts );
}
}