Version 2.2.0 RC-1

upload/ips_kernel/class_cache_mmcache.php

@@ -0,0 +1,102 @@
+<?php
+/*
++--------------------------------------------------------------------------
+|   Invision Power Services Kernel [Cache Abstraction]
+|	Invision Power Board
+|   =============================================
+|   by Matthew Mecham
+|   (c) 2001 - 2006 Invision Power Services, Inc.
+|   http://www.invisionpower.com
+|   =============================================
+|   Web: http://www.invisionboard.com
++---------------------------------------------------------------------------
+|   THIS IS NOT FREE / OPEN SOURCE SOFTWARE
++---------------------------------------------------------------------------
+|
+|   > Core Module
+|   > Module written by Brandon Farber
+|   > Date started: Friday 19th May 2006 17:33 
+|
+|	> Module Version Number: 1.0
++--------------------------------------------------------------------------
+*/
+
+/**
+* IPS Kernel Pages: Cache Object Core
+*	-- Turck-MMCache Cache Storage
+*
+* Basic Usage Examples
+* <code>
+* $cache = new cache_lib( 'identifier' );
+* Update:
+* $db->do_put( 'key', 'value' [, 'ttl'] );
+* Remove
+* $db->do_remove( 'key' );
+* Retrieve
+* $db->do_get( 'key' );
+* </code>
+*  		
+* @package		IPS_KERNEL
+* @subpackage	Cache Abstraction
+* @author   	Brandon Mecham
+* @version		1.0
+*/
+
+class cache_lib
+{
+	var $identifier;
+	var $crashed		= 0;
+	
+	
+	function cache_lib( $identifier='' )
+	{
+		if( !function_exists('mmcache_get') )
+		{
+			$this->crashed = 1;
+			return FALSE;
+		}
+		
+		if( !$identifier )
+		{
+			$this->identifier = md5( uniqid( rand(), TRUE ) );
+		}
+		else
+		{
+			$this->identifier = $identifier;
+		}
+		
+		unset( $identifier );
+		
+	}
+	
+	
+	function disconnect()
+	{
+		return TRUE;
+	}
+		
+	
+	function do_put( $key, $value, $ttl=0 )
+	{
+		mmcache_lock( md5( $this->identifier . $key ) );
+		
+		mmcache_put( md5( $this->identifier . $key ),
+							$value,
+							intval($ttl) );
+							
+		mmcache_unlock( md5( $this->identifier . $key ) );
+	}
+	
+	function do_get( $key )
+	{
+		$return_val = mmcache_get( md5( $this->identifier . $key ) );
+
+		return $return_val;
+	}
+	
+	function do_remove( $key )
+	{
+		mmcache_rm( md5( $this->identifier . $key ) );
+	}
+}
+?>