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<?php
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/*
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* This file is part of Twig.
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*
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* (c) 2015 Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Twig_Profiler_Profile implements IteratorAggregate, Serializable
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{
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const ROOT = 'ROOT';
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const BLOCK = 'block';
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const TEMPLATE = 'template';
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const MACRO = 'macro';
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private $template;
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private $name;
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private $type;
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private $starts = array();
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private $ends = array();
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private $profiles = array();
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public function __construct($template = 'main', $type = self::ROOT, $name = 'main')
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{
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$this->template = $template;
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$this->type = $type;
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$this->name = 0 === strpos($name, '__internal_') ? 'INTERNAL' : $name;
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$this->enter();
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}
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public function getTemplate()
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{
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return $this->template;
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}
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public function getType()
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{
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return $this->type;
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}
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public function getName()
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{
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return $this->name;
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}
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public function isRoot()
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{
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return self::ROOT === $this->type;
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}
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public function isTemplate()
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{
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return self::TEMPLATE === $this->type;
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}
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public function isBlock()
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{
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return self::BLOCK === $this->type;
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}
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public function isMacro()
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{
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return self::MACRO === $this->type;
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}
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public function getProfiles()
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{
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return $this->profiles;
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}
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public function addProfile(Twig_Profiler_Profile $profile)
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{
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$this->profiles[] = $profile;
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}
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/**
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* Returns the duration in microseconds.
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*
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* @return int
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*/
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public function getDuration()
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{
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if ($this->isRoot() && $this->profiles) {
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// for the root node with children, duration is the sum of all child durations
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$duration = 0;
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foreach ($this->profiles as $profile) {
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$duration += $profile->getDuration();
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}
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return $duration;
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}
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return isset($this->ends['wt']) && isset($this->starts['wt']) ? $this->ends['wt'] - $this->starts['wt'] : 0;
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}
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/**
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* Returns the memory usage in bytes.
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*
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* @return int
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*/
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public function getMemoryUsage()
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{
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return isset($this->ends['mu']) && isset($this->starts['mu']) ? $this->ends['mu'] - $this->starts['mu'] : 0;
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}
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/**
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* Returns the peak memory usage in bytes.
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*
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* @return int
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*/
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public function getPeakMemoryUsage()
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{
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return isset($this->ends['pmu']) && isset($this->starts['pmu']) ? $this->ends['pmu'] - $this->starts['pmu'] : 0;
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}
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/**
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* Starts the profiling.
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*/
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public function enter()
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{
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$this->starts = array(
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'wt' => microtime(true),
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'mu' => memory_get_usage(),
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'pmu' => memory_get_peak_usage(),
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);
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}
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/**
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* Stops the profiling.
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*/
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public function leave()
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{
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$this->ends = array(
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'wt' => microtime(true),
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'mu' => memory_get_usage(),
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'pmu' => memory_get_peak_usage(),
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);
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}
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public function getIterator()
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{
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return new ArrayIterator($this->profiles);
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}
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public function serialize()
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{
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return serialize(array($this->template, $this->name, $this->type, $this->starts, $this->ends, $this->profiles));
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}
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public function unserialize($data)
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{
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list($this->template, $this->name, $this->type, $this->starts, $this->ends, $this->profiles) = unserialize($data);
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}
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}
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