<?php
-
/**
* This class stores an arbitrary value along with its dependencies.
* Users should typically only use DependencyWrapper::getFromCache(), rather
* than instantiating one of these objects directly.
- * @addtogroup Cache
+ * @ingroup Cache
*/
class DependencyWrapper {
var $value;
/**
* Create an instance.
- * @param mixed $value The user-supplied value
- * @param mixed $deps A dependency or dependency array. All dependencies
+ * @param $value Mixed: the user-supplied value
+ * @param $deps Mixed: a dependency or dependency array. All dependencies
* must be objects implementing CacheDependency.
*/
function __construct( $value = false, $deps = array() ) {
* it will be generated with the callback function (if present), and the newly
* calculated value will be stored to the cache in a wrapper.
*
- * @param object $cache A cache object such as $wgMemc
- * @param string $key The cache key
- * @param integer $expiry The expiry timestamp or interval in seconds
- * @param mixed $callback The callback for generating the value, or false
- * @param array $callbackParams The function parameters for the callback
- * @param array $deps The dependencies to store on a cache miss. Note: these
+ * @param $cache Object: a cache object such as $wgMemc
+ * @param $key String: the cache key
+ * @param $expiry Integer: the expiry timestamp or interval in seconds
+ * @param $callback Mixed: the callback for generating the value, or false
+ * @param $callbackParams Array: the function parameters for the callback
+ * @param $deps Array: the dependencies to store on a cache miss. Note: these
* are not the dependencies used on a cache hit! Cache hits use the stored
* dependency array.
*
}
/**
- * @addtogroup Cache
+ * @ingroup Cache
*/
abstract class CacheDependency {
/**
/**
* Hook to perform any expensive pre-serialize loading of dependency values.
*/
- function loadDependencyValues() {}
+ function loadDependencyValues() { }
}
/**
- * @addtogroup Cache
+ * @ingroup Cache
*/
class FileDependency extends CacheDependency {
var $filename, $timestamp;
/**
* Create a file dependency
*
- * @param string $filename The name of the file, preferably fully qualified
- * @param mixed $timestamp The unix last modified timestamp, or false if the
+ * @param $filename String: the name of the file, preferably fully qualified
+ * @param $timestamp Mixed: the unix last modified timestamp, or false if the
* file does not exist. If omitted, the timestamp will be loaded from
* the file.
*
$this->timestamp = $timestamp;
}
+ function __sleep() {
+ $this->loadDependencyValues();
+ return array( 'filename', 'timestamp' );
+ }
+
function loadDependencyValues() {
if ( is_null( $this->timestamp ) ) {
if ( !file_exists( $this->filename ) ) {
}
/**
- * @addtogroup Cache
+ * @ingroup Cache
*/
class TitleDependency extends CacheDependency {
var $titleObj;
/**
* Construct a title dependency
- * @param Title $title
+ * @param $title Title
*/
function __construct( Title $title ) {
$this->titleObj = $title;
function isExpired() {
$touched = $this->getTitle()->getTouched();
+
if ( $this->touched === false ) {
if ( $touched === false ) {
# Still missing
}
/**
- * @addtogroup Cache
+ * @ingroup Cache
*/
class TitleListDependency extends CacheDependency {
var $linkBatch;
function calculateTimestamps() {
# Initialise values to false
$timestamps = array();
+
foreach ( $this->getLinkBatch()->data as $ns => $dbks ) {
if ( count( $dbks ) > 0 ) {
$timestamps[$ns] = array();
if ( count( $timestamps ) ) {
$dbr = wfGetDB( DB_SLAVE );
$where = $this->getLinkBatch()->constructSet( 'page', $dbr );
- $res = $dbr->select( 'page',
+ $res = $dbr->select(
+ 'page',
array( 'page_namespace', 'page_title', 'page_touched' ),
- $where, __METHOD__ );
+ $where,
+ __METHOD__
+ );
+
while ( $row = $dbr->fetchObject( $res ) ) {
$timestamps[$row->page_namespace][$row->page_title] = $row->page_touched;
}
}
function getLinkBatch() {
- if ( !isset( $this->linkBatch ) ){
+ if ( !isset( $this->linkBatch ) ) {
$this->linkBatch = new LinkBatch;
$this->linkBatch->setArray( $this->timestamps );
}
foreach ( $this->timestamps as $ns => $dbks ) {
foreach ( $dbks as $dbk => $oldTimestamp ) {
$newTimestamp = $newTimestamps[$ns][$dbk];
+
if ( $oldTimestamp === false ) {
if ( $newTimestamp === false ) {
# Still missing
}
/**
- * @addtogroup Cache
+ * @ingroup Cache
*/
class GlobalDependency extends CacheDependency {
var $name, $value;
}
/**
- * @addtogroup Cache
+ * @ingroup Cache
*/
class ConstantDependency extends CacheDependency {
var $name, $value;
dépôts / lhc / web / wiklou.git / blobdiff