Initial Import
diff --git a/system/libraries/Benchmark.php b/system/libraries/Benchmark.php
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+<?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
+?>
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