Initial Import

1 files changed, 117 insertions, 0 deletions

diff --git a/system/libraries/Benchmark.php b/system/libraries/Benchmark.php
new file mode 100644
index 000000000..9dd9d4ac4
--- /dev/null
+++ b/system/libraries/Benchmark.php
@@ -0,0 +1,117 @@
+<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		Rick Ellis
+ * @copyright	Copyright (c) 2006, pMachine, Inc.
+ * @license		http://www.codeignitor.com/user_guide/license.html 
+ * @link		http://www.codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+ 
+// ------------------------------------------------------------------------
+
+/**
+ * Code Igniter Benchmark Class
+ *
+ * This class enables you to mark points and calculate the time difference
+ * between them.  Memory consumption can also be displayed.
+ *
+ * @package		CodeIgniter
+ * @subpackage	Libraries
+ * @category	Libraries
+ * @author		Rick Ellis
+ * @link		http://www.codeigniter.com/user_guide/libraries/benchmark.html
+ */
+class CI_Benchmark {
+
+	var $marker = array();
+
+	/**
+	 * Constructor
+	 *
+	 * @access	public
+	 */
+    function CI_Benchmark()
+    {
+    }
+    // END CI_Benchmark()
+    
+	// --------------------------------------------------------------------
+
+	/**
+	 * Set a benchmark marker
+	 *
+	 * Multiple calls to this function can be made so that several
+	 * execution points can be timed
+	 *
+	 * @access	public
+	 * @param	string	$name	name of the marker
+	 * @return	void
+	 */
+    function mark($name)
+    {
+        $this->marker[$name] = microtime();
+    }
+  	// END mark()
+  	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Calculates the time difference between two marked points.
+	 *
+	 * If the first parameter is empty this function instead returns the 
+	 * {elapsed_time} pseudo-variable. This permits the the full system 
+	 * execution time to be shown in a template. The output class will
+	 * swap the real value for this variable.
+	 *
+	 * @access	public
+	 * @param	string	a paricular marked point
+	 * @param	string	a paricular marked point
+	 * @param	integer	the number of decimal places
+	 * @return	mixed
+	 */
+    function elapsed_time($point1 = '', $point2 = '', $decimals = 4)
+    {
+    	if ($point1 == '')
+    	{
+			return '{elapsed_time}';
+    	}
+    	    
+    	if ( ! isset($this->marker[$point2]))
+        	$this->marker[$point2] = microtime();
+        	    
+        list($sm, $ss) = explode(' ', $this->marker[$point1]);
+        list($em, $es) = explode(' ', $this->marker[$point2]);
+                        
+        return number_format(($em + $es) - ($sm + $ss), $decimals);
+    }
+ 	// END elapsed_time()
+ 	
+	// --------------------------------------------------------------------
+
+	/**
+	 * Memory Usage
+	 *
+	 * This function returns the {memory_usage} pseudo-variable.
+	 * This permits it to be put it anywhere in a template 
+	 * without the memory being calculated until the end. 
+	 * The output class will swap the real value for this variable.
+	 *
+	 * @access	public
+	 * @return	string
+	 */
+	function memory_usage()
+	{
+		return '{memory_usage}';
+	}
+	// END memory_usage()
+
+}
+
+// END CI_Benchmark class
+?>
\ No newline at end of file