vendor/twig/twig/lib/Twig/Profiler/Profile.php

   1 <?php
   2
   3 /*
   4  * This file is part of Twig.
   5  *
   6  * (c) Fabien Potencier
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 /**
  13  * @author Fabien Potencier <fabien@symfony.com>
  14  *
  15  * @final
  16  */
  17 class Twig_Profiler_Profile implements IteratorAggregate, Serializable
  18 {
  19     const ROOT = 'ROOT';
  20     const BLOCK = 'block';
  21     const TEMPLATE = 'template';
  22     const MACRO = 'macro';
  23
  24     private $template;
  25     private $name;
  26     private $type;
  27     private $starts = array();
  28     private $ends = array();
  29     private $profiles = array();
  30
  31     public function __construct($template = 'main', $type = self::ROOT, $name = 'main')
  32     {
  33         $this->template = $template;
  34         $this->type = $type;
  35         $this->name = 0 === strpos($name, '__internal_') ? 'INTERNAL' : $name;
  36         $this->enter();
  37     }
  38
  39     public function getTemplate()
  40     {
  41         return $this->template;
  42     }
  43
  44     public function getType()
  45     {
  46         return $this->type;
  47     }
  48
  49     public function getName()
  50     {
  51         return $this->name;
  52     }
  53
  54     public function isRoot()
  55     {
  56         return self::ROOT === $this->type;
  57     }
  58
  59     public function isTemplate()
  60     {
  61         return self::TEMPLATE === $this->type;
  62     }
  63
  64     public function isBlock()
  65     {
  66         return self::BLOCK === $this->type;
  67     }
  68
  69     public function isMacro()
  70     {
  71         return self::MACRO === $this->type;
  72     }
  73
  74     public function getProfiles()
  75     {
  76         return $this->profiles;
  77     }
  78
  79     public function addProfile(Twig_Profiler_Profile $profile)
  80     {
  81         $this->profiles[] = $profile;
  82     }
  83
  84     /**
  85      * Returns the duration in microseconds.
  86      *
  87      * @return int
  88      */
  89     public function getDuration()
  90     {
  91         if ($this->isRoot() && $this->profiles) {
  92             // for the root node with children, duration is the sum of all child durations
  93             $duration = 0;
  94             foreach ($this->profiles as $profile) {
  95                 $duration += $profile->getDuration();
  96             }
  97
  98             return $duration;
  99         }
 100
 101         return isset($this->ends['wt']) && isset($this->starts['wt']) ? $this->ends['wt'] - $this->starts['wt'] : 0;
 102     }
 103
 104     /**
 105      * Returns the memory usage in bytes.
 106      *
 107      * @return int
 108      */
 109     public function getMemoryUsage()
 110     {
 111         return isset($this->ends['mu']) && isset($this->starts['mu']) ? $this->ends['mu'] - $this->starts['mu'] : 0;
 112     }
 113
 114     /**
 115      * Returns the peak memory usage in bytes.
 116      *
 117      * @return int
 118      */
 119     public function getPeakMemoryUsage()
 120     {
 121         return isset($this->ends['pmu']) && isset($this->starts['pmu']) ? $this->ends['pmu'] - $this->starts['pmu'] : 0;
 122     }
 123
 124     /**
 125      * Starts the profiling.
 126      */
 127     public function enter()
 128     {
 129         $this->starts = array(
 130             'wt' => microtime(true),
 131             'mu' => memory_get_usage(),
 132             'pmu' => memory_get_peak_usage(),
 133         );
 134     }
 135
 136     /**
 137      * Stops the profiling.
 138      */
 139     public function leave()
 140     {
 141         $this->ends = array(
 142             'wt' => microtime(true),
 143             'mu' => memory_get_usage(),
 144             'pmu' => memory_get_peak_usage(),
 145         );
 146     }
 147
 148     public function reset()
 149     {
 150         $this->starts = $this->ends = $this->profiles = array();
 151         $this->enter();
 152     }
 153
 154     public function getIterator()
 155     {
 156         return new ArrayIterator($this->profiles);
 157     }
 158
 159     public function serialize()
 160     {
 161         return serialize(array($this->template, $this->name, $this->type, $this->starts, $this->ends, $this->profiles));
 162     }
 163
 164     public function unserialize($data)
 165     {
 166         list($this->template, $this->name, $this->type, $this->starts, $this->ends, $this->profiles) = unserialize($data);
 167     }
 168 }
 169
 170 class_alias('Twig_Profiler_Profile', 'Twig\Profiler\Profile', false);