#
# Copyright (C) 2003-2004 Brion Vibber <brion@pobox.com>
# http://www.mediawiki.org/
-#
+#
# 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
+# 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.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* @package MediaWiki
*/
-
+
/**
* Simple generic object store
*
*/
class BagOStuff {
var $debugmode;
-
+
function BagOStuff() {
$this->set_debug( false );
}
-
+
function set_debug($bool) {
$this->debugmode = $bool;
}
-
+
/* *** THE GUTS OF THE OPERATION *** */
/* Override these with functional things in subclasses */
-
+
function get($key) {
/* stub */
return false;
/* stub */
return false;
}
-
+
function delete($key, $time=0) {
/* stub */
return false;
}
-
+
function lock($key, $timeout = 0) {
/* stub */
return true;
/* stub */
return true;
}
-
+
/* *** Emulated functions *** */
/* Better performance can likely be got with custom written versions */
function get_multi($keys) {
$out[$key] = $this->get($key);
return $out;
}
-
+
function set_multi($hash, $exptime=0) {
foreach($hash as $key => $value)
$this->set($key, $value, $exptime);
}
-
+
function add($key, $value, $exptime=0) {
if( $this->get($key) == false ) {
$this->set($key, $value, $exptime);
return true;
}
}
-
+
function add_multi($hash, $exptime=0) {
foreach($hash as $key => $value)
$this->add($key, $value, $exptime);
foreach($keys as $key)
$this->delete($key, $time);
}
-
+
function replace($key, $value, $exptime=0) {
if( $this->get($key) !== false )
$this->set($key, $value, $exptime);
}
-
+
function incr($key, $value=1) {
if ( !$this->lock($key) ) {
return false;
$this->unlock($key);
return $n;
}
-
+
function decr($key, $value=1) {
if ( !$this->lock($key) ) {
return false;
$this->unlock($key);
return $m;
}
-
+
function _debug($text) {
if($this->debugmode)
wfDebug("BagOStuff debug: $text\n");
persist between program runs.
*/
var $bag;
-
+
function HashBagOStuff() {
$this->bag = array();
}
-
+
function _expire($key) {
$et = $this->bag[$key][1];
if(($et == 0) || ($et > time()))
$this->delete($key);
return true;
}
-
+
function get($key) {
if(!$this->bag[$key])
return false;
return false;
return $this->bag[$key][0];
}
-
+
function set($key,$value,$exptime=0) {
if(($exptime != 0) && ($exptime < 3600*24*30))
$exptime = time() + $exptime;
$this->bag[$key] = array( $value, $exptime );
}
-
+
function delete($key,$time=0) {
if(!$this->bag[$key])
return false;
function SqlBagOStuff($tablename = 'objectcache') {
$this->table = $tablename;
}
-
+
function get($key) {
/* expire old entries if any */
$this->garbageCollect();
-
+
$res = $this->_query(
"SELECT value,exptime FROM $0 WHERE keyname='$1'", $key);
if(!$res) {
}
return false;
}
-
+
function set($key,$value,$exptime=0) {
$exptime = intval($exptime);
if($exptime < 0) $exptime = 0;
$exp = $this->_fromunixtime($exptime);
}
$this->delete( $key );
- $this->_query(
- "INSERT INTO $0 (keyname,value,exptime) VALUES('$1','$2','$exp')",
- $key, $this->_serialize($value));
+ $this->_doinsert($this->getTableName(), array(
+ 'keyname' => $key,
+ 'value' => $this->_blobencode($this->_serialize($value)),
+ 'exptime' => $exp
+ ));
return true; /* ? */
}
-
+
function delete($key,$time=0) {
$this->_query(
"DELETE FROM $0 WHERE keyname='$1'", $key );
return true; /* ? */
}
-
+
function getTableName() {
return $this->table;
}
-
+
function _query($sql) {
$reps = func_get_args();
$reps[0] = $this->getTableName();
for($i=0;$i<count($reps);$i++) {
$sql = str_replace(
'$' . $i,
- $this->_strencode($reps[$i]),
+ $i > 0 ? $this->_strencode($reps[$i]) : $reps[$i],
$sql);
}
$res = $this->_doquery($sql);
}
return $res;
}
-
+
function _strencode($str) {
/* Protect strings in SQL */
return str_replace( "'", "''", $str );
}
-
+ function _blobencode($str) {
+ return $str;
+ }
+ function _doinsert($table, $vals) {
+ die( 'abstract function SqlBagOStuff::_doinsert() must be defined' );
+ }
function _doquery($sql) {
die( 'abstract function SqlBagOStuff::_doquery() must be defined' );
}
-
+
function _fetchrow($res) {
die( 'abstract function SqlBagOStuff::_fetchrow() must be defined' );
}
-
+
function _freeresult($result) {
/* stub */
return false;
}
-
+
function _dberror($result) {
/* stub */
return 'unknown error';
}
-
+
function _maxdatetime() {
die( 'abstract function SqlBagOStuff::_maxdatetime() must be defined' );
}
-
+
function _fromunixtime() {
die( 'abstract function SqlBagOStuff::_fromunixtime() must be defined' );
}
-
+
function garbageCollect() {
/* Ignore 99% of requests */
if ( !mt_rand( 0, 100 ) ) {
}
}
}
-
+
function expireall() {
/* Remove any items that have expired */
$now = $this->_fromunixtime( time() );
- $this->_query( "DELETE FROM $0 WHERE exptime<'$now'" );
+ $this->_query( "DELETE FROM $0 WHERE exptime < '$now'" );
}
-
+
function deleteall() {
/* Clear *all* items from cache table */
$this->_query( "DELETE FROM $0" );
}
-
+
/**
* Serialize an object and, if possible, compress the representation.
* On typical message and page data, this can provide a 3X decrease
return $serial;
}
}
-
+
/**
* Unserialize and, if necessary, decompress an object.
* @param string $serial
$serial = $decomp;
}
}
- return unserialize( $serial );
+ wfdebug("serial: [$serial]\n");
+ $ret = unserialize( $serial );
+ return $ret;
}
}
function _doquery($sql) {
$dbw =& wfGetDB( DB_MASTER );
- return $dbw->query($sql, 'MediaWikiBagOStuff:_doquery');
+ return $dbw->query($sql, 'MediaWikiBagOStuff::_doquery');
+ }
+ function _doinsert($t, $v) {
+ $dbw =& wfGetDB( DB_MASTER );
+ return $dbw->insert($t, $v, 'MediaWikiBagOStuff::_doinsert');
}
function _fetchobject($result) {
$dbw =& wfGetDB( DB_MASTER );
return $dbw->lastError();
}
function _maxdatetime() {
- return '9999-12-31 12:59:59';
+ $dbw =& wfGetDB(DB_MASTER);
+ return $dbw->timestamp('9999-12-31 12:59:59');
}
function _fromunixtime($ts) {
- return gmdate( 'Y-m-d H:i:s', $ts );
+ $dbw =& wfGetDB(DB_MASTER);
+ return $dbw->timestamp($ts);
}
function _strencode($s) {
$dbw =& wfGetDB( DB_MASTER );
return $dbw->strencode($s);
}
+ function _blobencode($s) {
+ $dbw =& wfGetDB( DB_MASTER );
+ return $dbw->encodeBlob($s);
+ }
function getTableName() {
if ( !$this->tableInitialised ) {
$dbw =& wfGetDB( DB_MASTER );
}
/**
- * This is a wrapper for Turck MMCache's shared memory functions.
- *
- * You can store objects with mmcache_put() and mmcache_get(), but Turck seems
- * to use a weird custom serializer that randomly segfaults. So we wrap calls
+ * This is a wrapper for Turck MMCache's shared memory functions.
+ *
+ * You can store objects with mmcache_put() and mmcache_get(), but Turck seems
+ * to use a weird custom serializer that randomly segfaults. So we wrap calls
* with serialize()/unserialize().
- *
+ *
* The thing I noticed about the Turck serialized data was that unlike ordinary
- * serialize(), it contained the names of methods, and judging by the amount of
- * binary data, perhaps even the bytecode of the methods themselves. It may be
- * that Turck's serializer is faster, so a possible future extension would be
+ * serialize(), it contained the names of methods, and judging by the amount of
+ * binary data, perhaps even the bytecode of the methods themselves. It may be
+ * that Turck's serializer is faster, so a possible future extension would be
* to use it for arrays but not for objects.
*
* @package MediaWiki
mmcache_put( $key, serialize( $value ), $exptime );
return true;
}
-
+
function delete($key, $time=0) {
mmcache_rm( $key );
return true;
mmcache_unlock( $key );
return true;
}
-}
+}
/**
- * This is a wrapper for eAccelerator's shared memory functions.
- *
+ * This is a wrapper for eAccelerator's shared memory functions.
+ *
* This is basically identical to the Turck MMCache version,
* mostly because eAccelerator is based on Turck MMCache.
*
eaccelerator_put( $key, serialize( $value ), $exptime );
return true;
}
-
+
function delete($key, $time=0) {
eaccelerator_rm( $key );
return true;
eaccelerator_unlock( $key );
return true;
}
-}
+}
?>
dépôts / lhc / web / wiklou.git / blobdiff