first commit

public/system/library/cache/apc.php

@@ -0,0 +1,33 @@
+<?php
+namespace Cache;
+class APC {
+	private $expire;
+	private $active = false;
+
+	public function __construct($expire) {
+		$this->expire = $expire;
+		$this->active = function_exists('apc_cache_info') && ini_get('apc.enabled');
+	}
+
+	public function get($key) {
+		return $this->active ? apc_fetch(CACHE_PREFIX . $key) : false;
+	}
+
+	public function set($key, $value) {
+		return $this->active ? apc_store(CACHE_PREFIX . $key, $value, $this->expire) : false;
+	}
+
+	public function delete($key) {
+		if (!$this->active) {
+			return false;
+		}
+		
+		$cache_info = apc_cache_info('user');
+		$cache_list = $cache_info['cache_list'];
+		foreach ($cache_list as $entry) {
+			if (strpos($entry['info'], CACHE_PREFIX . $key) === 0) {
+				apcu_delete($entry['info']);
+			}
+		}
+	}
+}