From 22d966b7b9a05029ee6d0512817cf381390fc9f2 Mon Sep 17 00:00:00 2001
From: test <you@example.com>
Date: Sun, 2 Jan 2022 21:49:37 +0100
Subject: [PATCH] replacing apc with apcu functions.

---
 app/code/core/Mage/Core/Model/Cache.php |  2 +-
 lib/Zend/Cache/Backend/Apc.php          | 22 +++++++++++-----------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/app/code/core/Mage/Core/Model/Cache.php b/app/code/core/Mage/Core/Model/Cache.php
index 831dfa4e764..66024fcea99 100644
--- a/app/code/core/Mage/Core/Model/Cache.php
+++ b/app/code/core/Mage/Core/Model/Cache.php
@@ -190,7 +190,7 @@ protected function _getBackendOptions(array $cacheOptions)
                 }
                 break;
             case 'apc':
-                if (extension_loaded('apc') && ini_get('apc.enabled')) {
+                if (extension_loaded('apcu') && ini_get('apc.enabled')) {
                     $enable2levels = true;
                     $backendType = 'Apc';
                 }
diff --git a/lib/Zend/Cache/Backend/Apc.php b/lib/Zend/Cache/Backend/Apc.php
index cc1e76622ed..61888da6133 100644
--- a/lib/Zend/Cache/Backend/Apc.php
+++ b/lib/Zend/Cache/Backend/Apc.php
@@ -55,7 +55,7 @@ class Zend_Cache_Backend_Apc extends Zend_Cache_Backend implements Zend_Cache_Ba
      */
     public function __construct(array $options = array())
     {
-        if (!extension_loaded('apc')) {
+        if (!extension_loaded('apcu')) {
             Zend_Cache::throwException('The apc extension must be loaded for using this backend !');
         }
         parent::__construct($options);
@@ -72,7 +72,7 @@ public function __construct(array $options = array())
      */
     public function load($id, $doNotTestCacheValidity = false)
     {
-        $tmp = apc_fetch($id);
+        $tmp = apcu_fetch($id);
         if (is_array($tmp)) {
             return $tmp[0];
         }
@@ -87,7 +87,7 @@ public function load($id, $doNotTestCacheValidity = false)
      */
     public function test($id)
     {
-        $tmp = apc_fetch($id);
+        $tmp = apcu_fetch($id);
         if (is_array($tmp)) {
             return $tmp[1];
         }
@@ -109,7 +109,7 @@ public function test($id)
     public function save($data, $id, $tags = array(), $specificLifetime = false)
     {
         $lifetime = $this->getLifetime($specificLifetime);
-        $result = apc_store($id, array($data, time(), $lifetime), $lifetime);
+        $result = apcu_store($id, array($data, time(), $lifetime), $lifetime);
         if (count($tags) > 0) {
             $this->_log(self::TAGS_UNSUPPORTED_BY_SAVE_OF_APC_BACKEND);
         }
@@ -124,7 +124,7 @@ public function save($data, $id, $tags = array(), $specificLifetime = false)
      */
     public function remove($id)
     {
-        return apc_delete($id);
+        return apcu_delete($id);
     }
 
     /**
@@ -146,7 +146,7 @@ public function clean($mode = Zend_Cache::CLEANING_MODE_ALL, $tags = array())
     {
         switch ($mode) {
             case Zend_Cache::CLEANING_MODE_ALL:
-                return apc_clear_cache('user');
+                return apcu_clear_cache('user');
                 break;
             case Zend_Cache::CLEANING_MODE_OLD:
                 $this->_log("Zend_Cache_Backend_Apc::clean() : CLEANING_MODE_OLD is unsupported by the Apc backend");
@@ -183,12 +183,12 @@ public function isAutomaticCleaningAvailable()
      */
     public function getFillingPercentage()
     {
-        $mem = apc_sma_info(true);
+        $mem = apcu_sma_info(true);
         $memSize    = $mem['num_seg'] * $mem['seg_size'];
         $memAvailable= $mem['avail_mem'];
         $memUsed = $memSize - $memAvailable;
         if ($memSize == 0) {
-            Zend_Cache::throwException('can\'t get apc memory size');
+            Zend_Cache::throwException('can\'t get apcu memory size');
         }
         if ($memUsed > $memSize) {
             return 100;
@@ -278,7 +278,7 @@ public function getIds()
      */
     public function getMetadatas($id)
     {
-        $tmp = apc_fetch($id);
+        $tmp = apcu_fetch($id);
         if (is_array($tmp)) {
             $data = $tmp[0];
             $mtime = $tmp[1];
@@ -306,7 +306,7 @@ public function getMetadatas($id)
      */
     public function touch($id, $extraLifetime)
     {
-        $tmp = apc_fetch($id);
+        $tmp = apcu_fetch($id);
         if (is_array($tmp)) {
             $data = $tmp[0];
             $mtime = $tmp[1];
@@ -320,7 +320,7 @@ public function touch($id, $extraLifetime)
             if ($newLifetime <=0) {
                 return false;
             }
-            apc_store($id, array($data, time(), $newLifetime), $newLifetime);
+            apcu_store($id, array($data, time(), $newLifetime), $newLifetime);
             return true;
         }
         return false;