Added Cache::instance() to get active instance

lib/Cache.php

@@ -38,6 +38,11 @@ class Cache {
 	 */
 	public $dir = 'cache/datastore';
 
+	/**
+	 * Cache object.
+	 */
+	private static $_instance;
+
 	/**
 	 * Constructor method creates the directory if it's missing.
 	 */
@@ -51,6 +56,8 @@ public function __construct ($dir = 'cache/datastore') {
 			mkdir ($this->dir);
 			chmod ($this->dir, 0777);
 		}
+
+		self::$_instance = $this;
 	}
 
 	/**
@@ -102,6 +109,13 @@ public static function init ($conf) {
 		return new Cache ($dir);
 	}
 
+	/**
+	 * Get the cache instance.
+	 */
+	public static function instance () {
+		return self::$_instance;
+	}
+
 	/**
 	 * Create a timeout file to store the timeout of the cached data.
 	 * Uses a similarly named dot-file to the main file that contains