File "object.lib.php"
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Charset: utf-8
<?php
/**
* LiteSpeed Object Cache Library
*
* @since 1.8
*/
defined( 'WPINC' ) || exit;
/**
* Handle exception
*/
if ( ! function_exists( 'litespeed_exception_handler' ) ) {
function litespeed_exception_handler( $errno, $errstr, $errfile, $errline ) {
throw new \ErrorException($errstr, 0, $errno, $errfile, $errline);
}
}
require_once __DIR__ . '/object-cache.cls.php';
/**
* Sets up Object Cache Global and assigns it.
*
* @since 1.8
*/
function wp_cache_init() {
$GLOBALS['wp_object_cache'] = WP_Object_Cache::get_instance();
}
/**
* Retrieves the cache contents from the cache by key and group.
*
* @since 1.8
*/
function wp_cache_get( $key, $group = '', $force = false, &$found = null ) {
global $wp_object_cache;
return $wp_object_cache->get( $key, $group, $force, $found );
}
/**
* Saves the data to the cache.
*
* @since 1.8
*/
function wp_cache_set( $key, $data, $group = '', $expire = 0 ) {
global $wp_object_cache;
return $wp_object_cache->set( $key, $data, $group, $expire );
}
/**
* Adds data to the cache, if the cache key doesn't already exist.
*
* @since 1.8
*/
function wp_cache_add( $key, $data, $group = '', $expire = 0 ) {
global $wp_object_cache;
return $wp_object_cache->add( $key, $data, $group, $expire );
}
/**
* Replaces the contents of the cache with new data.
*
* @since 1.8
*/
function wp_cache_replace( $key, $data, $group = '', $expire = 0 ) {
global $wp_object_cache;
return $wp_object_cache->replace( $key, $data, $group, $expire );
}
/**
* Increment numeric cache item's value
*
* @since 1.8
*/
function wp_cache_incr( $key, $offset = 1, $group = '' ) {
global $wp_object_cache;
return $wp_object_cache->incr_desr( $key, $offset, $group );
}
/**
* Decrements numeric cache item's value.
*
* @since 1.8
*/
function wp_cache_decr( $key, $offset = 1, $group = '' ) {
global $wp_object_cache;
return $wp_object_cache->incr_desr( $key, $offset, $group, false );
}
/**
* Removes the cache contents matching key and group.
*
* @since 1.8
*/
function wp_cache_delete( $key, $group = '' ) {
global $wp_object_cache;
return $wp_object_cache->delete( $key, $group );
}
/**
* Removes all cache items.
*
* @since 1.8
*/
function wp_cache_flush() {
global $wp_object_cache;
return $wp_object_cache->flush();
}
/**
* Adds a group or set of groups to the list of global groups.
*
* @since 1.8
*/
function wp_cache_add_global_groups( $groups ) {
global $wp_object_cache;
$wp_object_cache->add_global_groups( $groups );
}
/**
* Adds a group or set of groups to the list of non-persistent groups.
*
* @since 1.8
*/
function wp_cache_add_non_persistent_groups( $groups ) {
global $wp_object_cache;
$wp_object_cache->add_non_persistent_groups( $groups );
}
/**
* Switches the internal blog ID.
*
* This changes the blog id used to create keys in blog specific groups.
*
* @since 1.8
*
* @see WP_Object_Cache::switch_to_blog()
* @global WP_Object_Cache $wp_object_cache Object cache global instance.
*
* @param int $blog_id Site ID.
*/
function wp_cache_switch_to_blog( $blog_id ) {
global $wp_object_cache;
$wp_object_cache->switch_to_blog( $blog_id );
}
/**
* Closes the cache.
*
* @since 1.8
*/
function wp_cache_close() {
return true;
}
class WP_Object_Cache {
protected static $_instance;
private $_object_cache;
private $_cache = array();
private $_cache_404 = array();
private $cache_total = 0;
private $count_hit_incall = 0;
private $count_hit = 0;
private $count_miss_incall = 0;
private $count_miss = 0;
private $count_set = 0;
private $blog_prefix;
/**
* Init
*
* @since 1.8
*/
public function __construct() {
$this->_object_cache = \LiteSpeed\Object_Cache::cls();
$this->multisite = is_multisite();
$this->blog_prefix = $this->multisite ? get_current_blog_id() . ':' : '';
/**
* Fix multiple instance using same oc issue
* @since 1.8.2
*/
! defined( 'LSOC_PREFIX' ) && define( 'LSOC_PREFIX', substr( md5( __FILE__ ), -5 ) );
}
/**
* Output debug info
*
* @since 1.8
* @access public
*/
public function debug() {
$log = ' [total] ' . $this->cache_total
. ' [hit_incall] ' . $this->count_hit_incall
. ' [hit] ' . $this->count_hit
. ' [miss_incall] ' . $this->count_miss_incall
. ' [miss] ' . $this->count_miss
. ' [set] ' . $this->count_set;
return $log;
}
/**
* Get from cache
*
* @since 1.8
* @access public
*/
public function get( $key, $group = 'default', $force = false, &$found = null ) {
$final_key = $this->_key( $key, $group );
// error_log('');
// error_log("oc: get \t\t\t[key] " . $final_key . ( $force ? "\t\t\t [forced] " : '' ) );
$found = false;
$found_in_oc = false;
$cache_val = false;
if ( array_key_exists( $final_key, $this->_cache ) && ! $force ) {
$found = true;
$cache_val = $this->_cache[ $final_key ];
$this->count_hit_incall ++;
}
elseif ( ! array_key_exists( $final_key, $this->_cache_404 ) && ! $this->_object_cache->is_non_persistent( $group ) ) {
$v = $this->_object_cache->get( $final_key );
if ( $v !== null ) {
$v = @maybe_unserialize( $v );
}
// To be compatible with false val
if ( is_array( $v ) && array_key_exists( 'data', $v ) ) {
$this->count_hit ++;
$found = true;
$found_in_oc = true;
$cache_val = $v[ 'data' ];
}
else { // Can't find key, cache it to 404
// error_log("oc: add404\t\t\t[key] " . $final_key );
$this->_cache_404[ $final_key ] = 1;
$this->count_miss ++;
}
}
else {
$this->count_miss_incall ++;
}
if ( is_object( $cache_val ) ) {
$cache_val = clone $cache_val;
}
// If not found but has `Store Transients` cfg on, still need to follow WP's get_transient() logic
if ( ! $found && $this->_object_cache->store_transients( $group ) ) {
$cache_val = $this->_transient_get( $key, $group );
if ( $cache_val ) {
$found = true; // $found not used for now (v1.8.3)
}
}
if ( $found_in_oc ) {
$this->_cache[ $final_key ] = $cache_val;
}
$this->cache_total ++;
return $cache_val;
}
/**
* Set to cache
*
* @since 1.8
* @access public
*/
public function set( $key, $data, $group = 'default', $expire = 0 ) {
$final_key = $this->_key( $key, $group );
if ( is_object( $data ) ) {
$data = clone $data;
}
// error_log("oc: set \t\t\t[key] " . $final_key );
$this->_cache[ $final_key ] = $data;
if( array_key_exists( $final_key, $this->_cache_404 ) ) {
// error_log("oc: unset404\t\t\t[key] " . $final_key );
unset( $this->_cache_404[ $final_key ] );
}
if ( ! $this->_object_cache->is_non_persistent( $group ) ) {
$this->_object_cache->set( $final_key, serialize( array( 'data' => $data ) ), $expire );
$this->count_set ++;
}
if ( $this->_object_cache->store_transients( $group ) ) {
$this->_transient_set( $key, $data, $group, $expire );
}
return true;
}
/**
* Adds data to the cache if it doesn't already exist.
*
* @since 1.8
* @access public
*/
public function add( $key, $data, $group = 'default', $expire = 0 ) {
if ( wp_suspend_cache_addition() ) {
return false;
}
$final_key = $this->_key( $key, $group );
if ( array_key_exists( $final_key, $this->_cache ) ) {
return false;
}
return $this->set( $key, $data, $group, $expire );
}
/**
* Replace cache if the cache key exists.
*
* @since 1.8
* @access public
*/
public function replace( $key, $data, $group = 'default', $expire = 0 ) {
$final_key = $this->_key( $key, $group );
if ( ! array_key_exists( $final_key, $this->_cache ) ) {
return false;
}
return $this->set( $key, $data, $group, $expire );
}
/**
* Increments numeric cache item's value.
*
* @since 1.8
* @access public
*/
public function incr_desr( $key, $offset = 1, $group = 'default', $incr = true ) {
$cache_val = $this->get( $key, $group );
if ( $cache_val === false ) {
return false;
}
if ( ! is_numeric( $cache_val ) ) {
$cache_val = 0;
}
$offset = (int) $offset;
if ( $incr ) {
$cache_val += $offset;
}
else {
$cache_val -= $offset;
}
if ( $cache_val < 0 ) {
$cache_val = 0;
}
$this->set( $key, $cache_val, $group );
return $cache_val;
}
/**
* Delete cache
*
* @since 1.8
* @access public
*/
public function delete( $key, $group = 'default' ) {
$final_key = $this->_key( $key, $group );
if ( $this->_object_cache->store_transients( $group ) ) {
$this->_transient_del( $key, $group );
}
if ( array_key_exists( $final_key, $this->_cache ) ) {
unset( $this->_cache[ $final_key ] );
}
// error_log("oc: delete \t\t\t[key] " . $final_key );
if ( $this->_object_cache->is_non_persistent( $group ) ) {
return false;
}
return $this->_object_cache->delete( $final_key );
}
/**
* Clear all cached data
*
* @since 1.8
* @access public
*/
public function flush() {
$this->_cache = array();
$this->_cache_404 = array();
// error_log("oc: flush " );
$this->_object_cache->flush();
return true;
}
/**
* Add global groups
*
* @since 1.8
* @access public
*/
public function add_global_groups( $groups ) {
$this->_object_cache->add_global_groups( $groups );
}
/**
* Add non persistent groups
*
* @since 1.8
* @access public
*/
public function add_non_persistent_groups( $groups ) {
$this->_object_cache->add_non_persistent_groups( $groups );
}
/**
* Get the final key
*
* @since 1.8
* @access private
*/
private function _key( $key, $group = 'default' ) {
$prefix = $this->_object_cache->is_global( $group ) ? '' : $this->blog_prefix;
return LSOC_PREFIX . $prefix . $group . '.' . $key;
}
/**
* Switches the internal blog ID.
*
* This changes the blog ID used to create keys in blog specific groups.
*
* @since 1.8
*
* @param int $blog_id Blog ID.
*/
public function switch_to_blog( $blog_id ) {
$blog_id = (int) $blog_id;
$this->blog_prefix = $this->multisite ? $blog_id . ':' : '';
}
/**
* Get transient from wp table
*
* @since 1.8.3
* @access private
* @see `wp-includes/option.php` function `get_transient`/`set_site_transient`
*/
private function _transient_get( $transient, $group ) {
if ( $group == 'transient' ) {
/**** Ori WP func start ****/
$transient_option = '_transient_' . $transient;
if ( ! wp_installing() ) {
// If option is not in alloptions, it is not autoloaded and thus has a timeout
$alloptions = wp_load_alloptions();
if ( !isset( $alloptions[$transient_option] ) ) {
$transient_timeout = '_transient_timeout_' . $transient;
$timeout = get_option( $transient_timeout );
if ( false !== $timeout && $timeout < time() ) {
delete_option( $transient_option );
delete_option( $transient_timeout );
$value = false;
}
}
}
if ( ! isset( $value ) )
$value = get_option( $transient_option );
/**** Ori WP func end ****/
}
elseif ( $group == 'site-transient' ) {
/**** Ori WP func start ****/
$no_timeout = array('update_core', 'update_plugins', 'update_themes');
$transient_option = '_site_transient_' . $transient;
if ( ! in_array( $transient, $no_timeout ) ) {
$transient_timeout = '_site_transient_timeout_' . $transient;
$timeout = get_site_option( $transient_timeout );
if ( false !== $timeout && $timeout < time() ) {
delete_site_option( $transient_option );
delete_site_option( $transient_timeout );
$value = false;
}
}
if ( ! isset( $value ) )
$value = get_site_option( $transient_option );
/**** Ori WP func end ****/
}
else {
$value = false;
}
return $value;
}
/**
* Set transient to WP table
*
* @since 1.8.3
* @access private
* @see `wp-includes/option.php` function `set_transient`/`set_site_transient`
*/
private function _transient_set( $transient, $value, $group, $expiration ) {
if ( $group == 'transient' ) {
/**** Ori WP func start ****/
$transient_timeout = '_transient_timeout_' . $transient;
$transient_option = '_transient_' . $transient;
if ( false === get_option( $transient_option ) ) {
$autoload = 'yes';
if ( $expiration ) {
$autoload = 'no';
add_option( $transient_timeout, time() + $expiration, '', 'no' );
}
$result = add_option( $transient_option, $value, '', $autoload );
} else {
// If expiration is requested, but the transient has no timeout option,
// delete, then re-create transient rather than update.
$update = true;
if ( $expiration ) {
if ( false === get_option( $transient_timeout ) ) {
delete_option( $transient_option );
add_option( $transient_timeout, time() + $expiration, '', 'no' );
$result = add_option( $transient_option, $value, '', 'no' );
$update = false;
} else {
update_option( $transient_timeout, time() + $expiration );
}
}
if ( $update ) {
$result = update_option( $transient_option, $value );
}
}
/**** Ori WP func end ****/
}
elseif ( $group == 'site-transient' ) {
/**** Ori WP func start ****/
$transient_timeout = '_site_transient_timeout_' . $transient;
$option = '_site_transient_' . $transient;
if ( false === get_site_option( $option ) ) {
if ( $expiration )
add_site_option( $transient_timeout, time() + $expiration );
$result = add_site_option( $option, $value );
} else {
if ( $expiration )
update_site_option( $transient_timeout, time() + $expiration );
$result = update_site_option( $option, $value );
}
/**** Ori WP func end ****/
}
else {
$result = null;
}
return $result;
}
/**
* Delete transient from WP table
*
* @since 1.8.3
* @access private
* @see `wp-includes/option.php` function `delete_transient`/`delete_site_transient`
*/
private function _transient_del( $transient, $group ) {
if ( $group == 'transient' ) {
/**** Ori WP func start ****/
$option_timeout = '_transient_timeout_' . $transient;
$option = '_transient_' . $transient;
$result = delete_option( $option );
if ( $result )
delete_option( $option_timeout );
/**** Ori WP func end ****/
}
elseif ( $group == 'site-transient' ) {
/**** Ori WP func start ****/
$option_timeout = '_site_transient_timeout_' . $transient;
$option = '_site_transient_' . $transient;
$result = delete_site_option( $option );
if ( $result )
delete_site_option( $option_timeout );
/**** Ori WP func end ****/
}
}
/**
* Get the current instance object.
*
* @since 1.8
* @access public
*/
public static function get_instance() {
if ( ! isset( self::$_instance ) ) {
self::$_instance = new self();
}
return self::$_instance;
}
}