| 68 |
lars |
1 |
<?php
|
|
|
2 |
/**
|
|
|
3 |
* CodeIgniter
|
|
|
4 |
*
|
|
|
5 |
* An open source application development framework for PHP
|
|
|
6 |
*
|
|
|
7 |
* This content is released under the MIT License (MIT)
|
|
|
8 |
*
|
| 2414 |
lars |
9 |
* Copyright (c) 2014 - 2019, British Columbia Institute of Technology
|
| 68 |
lars |
10 |
*
|
|
|
11 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
12 |
* of this software and associated documentation files (the "Software"), to deal
|
|
|
13 |
* in the Software without restriction, including without limitation the rights
|
|
|
14 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
15 |
* copies of the Software, and to permit persons to whom the Software is
|
|
|
16 |
* furnished to do so, subject to the following conditions:
|
|
|
17 |
*
|
|
|
18 |
* The above copyright notice and this permission notice shall be included in
|
|
|
19 |
* all copies or substantial portions of the Software.
|
|
|
20 |
*
|
|
|
21 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
22 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
23 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
24 |
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
25 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
26 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
27 |
* THE SOFTWARE.
|
|
|
28 |
*
|
|
|
29 |
* @package CodeIgniter
|
|
|
30 |
* @author EllisLab Dev Team
|
|
|
31 |
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
|
| 2414 |
lars |
32 |
* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
|
|
|
33 |
* @license https://opensource.org/licenses/MIT MIT License
|
| 68 |
lars |
34 |
* @link https://codeigniter.com
|
|
|
35 |
* @since Version 1.0.0
|
|
|
36 |
* @filesource
|
|
|
37 |
*/
|
|
|
38 |
defined('BASEPATH') OR exit('No direct script access allowed');
|
|
|
39 |
|
|
|
40 |
/**
|
|
|
41 |
* Benchmark Class
|
|
|
42 |
*
|
|
|
43 |
* This class enables you to mark points and calculate the time difference
|
|
|
44 |
* between them. Memory consumption can also be displayed.
|
|
|
45 |
*
|
|
|
46 |
* @package CodeIgniter
|
|
|
47 |
* @subpackage Libraries
|
|
|
48 |
* @category Libraries
|
|
|
49 |
* @author EllisLab Dev Team
|
|
|
50 |
* @link https://codeigniter.com/user_guide/libraries/benchmark.html
|
|
|
51 |
*/
|
|
|
52 |
class CI_Benchmark {
|
|
|
53 |
|
|
|
54 |
/**
|
|
|
55 |
* List of all benchmark markers
|
|
|
56 |
*
|
|
|
57 |
* @var array
|
|
|
58 |
*/
|
|
|
59 |
public $marker = array();
|
|
|
60 |
|
|
|
61 |
/**
|
|
|
62 |
* Set a benchmark marker
|
|
|
63 |
*
|
|
|
64 |
* Multiple calls to this function can be made so that several
|
|
|
65 |
* execution points can be timed.
|
|
|
66 |
*
|
|
|
67 |
* @param string $name Marker name
|
|
|
68 |
* @return void
|
|
|
69 |
*/
|
|
|
70 |
public function mark($name)
|
|
|
71 |
{
|
|
|
72 |
$this->marker[$name] = microtime(TRUE);
|
|
|
73 |
}
|
|
|
74 |
|
|
|
75 |
// --------------------------------------------------------------------
|
|
|
76 |
|
|
|
77 |
/**
|
|
|
78 |
* Elapsed time
|
|
|
79 |
*
|
|
|
80 |
* Calculates the time difference between two marked points.
|
|
|
81 |
*
|
|
|
82 |
* If the first parameter is empty this function instead returns the
|
|
|
83 |
* {elapsed_time} pseudo-variable. This permits the full system
|
|
|
84 |
* execution time to be shown in a template. The output class will
|
|
|
85 |
* swap the real value for this variable.
|
|
|
86 |
*
|
|
|
87 |
* @param string $point1 A particular marked point
|
|
|
88 |
* @param string $point2 A particular marked point
|
|
|
89 |
* @param int $decimals Number of decimal places
|
|
|
90 |
*
|
|
|
91 |
* @return string Calculated elapsed time on success,
|
|
|
92 |
* an '{elapsed_string}' if $point1 is empty
|
|
|
93 |
* or an empty string if $point1 is not found.
|
|
|
94 |
*/
|
|
|
95 |
public function elapsed_time($point1 = '', $point2 = '', $decimals = 4)
|
|
|
96 |
{
|
|
|
97 |
if ($point1 === '')
|
|
|
98 |
{
|
|
|
99 |
return '{elapsed_time}';
|
|
|
100 |
}
|
|
|
101 |
|
|
|
102 |
if ( ! isset($this->marker[$point1]))
|
|
|
103 |
{
|
|
|
104 |
return '';
|
|
|
105 |
}
|
|
|
106 |
|
|
|
107 |
if ( ! isset($this->marker[$point2]))
|
|
|
108 |
{
|
|
|
109 |
$this->marker[$point2] = microtime(TRUE);
|
|
|
110 |
}
|
|
|
111 |
|
|
|
112 |
return number_format($this->marker[$point2] - $this->marker[$point1], $decimals);
|
|
|
113 |
}
|
|
|
114 |
|
|
|
115 |
// --------------------------------------------------------------------
|
|
|
116 |
|
|
|
117 |
/**
|
|
|
118 |
* Memory Usage
|
|
|
119 |
*
|
|
|
120 |
* Simply returns the {memory_usage} marker.
|
|
|
121 |
*
|
|
|
122 |
* This permits it to be put it anywhere in a template
|
|
|
123 |
* without the memory being calculated until the end.
|
|
|
124 |
* The output class will swap the real value for this variable.
|
|
|
125 |
*
|
|
|
126 |
* @return string '{memory_usage}'
|
|
|
127 |
*/
|
|
|
128 |
public function memory_usage()
|
|
|
129 |
{
|
|
|
130 |
return '{memory_usage}';
|
|
|
131 |
}
|
|
|
132 |
|
|
|
133 |
}
|