145 lines
3.5 KiB
PHP
145 lines
3.5 KiB
PHP
<?php
|
|
/*
|
|
* Laconica - a distributed open-source microblogging tool
|
|
* Copyright (C) 2008, Controlez-Vous, Inc.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
if (!defined('LACONICA')) { exit(1); }
|
|
|
|
require_once INSTALLDIR.'/classes/Memcached_DataObject.php';
|
|
|
|
class Memcached_DataObject extends DB_DataObject
|
|
{
|
|
static function &staticGet($cls, $k, $v=NULL) {
|
|
$i = $this->getcached($cls, $k, $v);
|
|
if (!is_null($i)) {
|
|
return $i;
|
|
} else {
|
|
$i = parent::staticGet($k, $v);
|
|
if (!is_null($i)) {
|
|
$i->encache();
|
|
}
|
|
return $i;
|
|
}
|
|
}
|
|
|
|
function insert() {
|
|
$result = parent::insert();
|
|
if ($result) {
|
|
$this->encache();
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
function update($orig=NULL) {
|
|
if (!is_null($orig)) {
|
|
$orig->decache(); # might be different keys
|
|
}
|
|
$result = parent::update($orig);
|
|
if ($result) {
|
|
$this->encache();
|
|
}
|
|
}
|
|
|
|
function delete() {
|
|
$this->decache(); # while we still have the values!
|
|
return parent::delete();
|
|
}
|
|
|
|
static function memcache() {
|
|
if (!common_config('memcached', 'enabled')) {
|
|
return NULL;
|
|
} else {
|
|
$cache = new Memcache();
|
|
$res = $cache->connect(common_config('memcached', 'server'),
|
|
common_config('memcached', 'port'));
|
|
return ($res) ? $cache : NULL;
|
|
}
|
|
}
|
|
|
|
static function cacheKey($cls, $k, $v) {
|
|
return common_cache_key(strtolower($cls) . ':' .
|
|
$k . ':' .
|
|
$v);
|
|
}
|
|
|
|
static function getcached($cls, $k, $v) {
|
|
$c = Memcached_DataObject::memcache();
|
|
if (!$c) {
|
|
return false;
|
|
} else {
|
|
return $c->get(Memcached_DataObject::cacheKey($cls, $k, $v));
|
|
}
|
|
}
|
|
|
|
function keyTypes() {
|
|
global $_DB_DATAOBJECT;
|
|
if (!isset($_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"])) {
|
|
$this->databaseStructure();
|
|
|
|
}
|
|
return $_DB_DATAOBJECT['INI'][$this->_database][$this->__table."__keys"];
|
|
}
|
|
|
|
function encache() {
|
|
$c = $this->memcache();
|
|
if (!$c) {
|
|
return false;
|
|
} else {
|
|
$primary = array();
|
|
$types = ksort($this->keyTypes());
|
|
foreach ($types as $key => $type) {
|
|
if ($type == 'K') {
|
|
$primary[] = $key;
|
|
} else {
|
|
$c->set($this->cacheKey($this->tableName(), $key, $this->$key),
|
|
$this);
|
|
}
|
|
}
|
|
# XXX: figure out what to do with compound pkeys
|
|
if (count($primary) == 1) {
|
|
$key = $primary[0];
|
|
$c->set($this->cacheKey($this->tableName(), $key, $this->$key),
|
|
$this);
|
|
}
|
|
}
|
|
}
|
|
|
|
function decache() {
|
|
$c = $this->memcache();
|
|
if (!$c) {
|
|
return false;
|
|
} else {
|
|
$primary = array();
|
|
$types = ksort($this->keyTypes());
|
|
foreach ($types as $key => $type) {
|
|
if ($type == 'K') {
|
|
$primary[] = $this->$key;
|
|
} else {
|
|
$c->delete($this->cacheKey($this->tableName(), $key, $this->$key),
|
|
$this);
|
|
}
|
|
}
|
|
# XXX: figure out what to do with compound pkeys
|
|
if (count($primary) == 1) {
|
|
$key = $primary[0];
|
|
$c->delete($this->cacheKey($this->tableName(), $key, $this->$key),
|
|
$this);
|
|
}
|
|
}
|
|
}
|
|
}
|