113 行
无行尾
2.8 KiB
PHP
113 行
无行尾
2.8 KiB
PHP
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
|
|
/**
|
|
* CodeIgniter
|
|
*
|
|
* An open source application development framework for PHP 5.1.6 or newer
|
|
*
|
|
* @package CodeIgniter
|
|
* @author ExpressionEngine Dev Team
|
|
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
|
|
* @license http://codeigniter.com/user_guide/license.html
|
|
* @link http://codeigniter.com
|
|
* @since Version 1.0
|
|
* @filesource
|
|
*/
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
/**
|
|
* CodeIgniter 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 ExpressionEngine Dev Team
|
|
* @link http://codeigniter.com/user_guide/libraries/benchmark.html
|
|
*/
|
|
class CI_Benchmark {
|
|
|
|
var $marker = array();
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* 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();
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* 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 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 particular marked point
|
|
* @param string a particular 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($this->marker[$point1]))
|
|
{
|
|
return '';
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* 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 CI_Benchmark class
|
|
|
|
/* End of file Benchmark.php */
|
|
/* Location: ./system/core/Benchmark.php */ |