186 lines
3.9 KiB
PHP
186 lines
3.9 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespace Symfony\Component\Stopwatch;
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/**
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* Stopwatch section.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Section
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{
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/**
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* @var StopwatchEvent[]
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*/
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private $events = [];
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/**
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* @var float|null
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*/
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private $origin;
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/**
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* @var bool
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*/
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private $morePrecision;
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/**
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* @var string
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*/
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private $id;
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/**
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* @var Section[]
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*/
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private $children = [];
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/**
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* @param float|null $origin Set the origin of the events in this section, use null to set their origin to their start time
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* @param bool $morePrecision If true, time is stored as float to keep the original microsecond precision
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*/
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public function __construct(float $origin = null, bool $morePrecision = false)
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{
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$this->origin = $origin;
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$this->morePrecision = $morePrecision;
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}
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/**
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* Returns the child section.
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*
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* @return self|null
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*/
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public function get(string $id)
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{
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foreach ($this->children as $child) {
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if ($id === $child->getId()) {
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return $child;
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}
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}
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return null;
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}
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/**
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* Creates or re-opens a child section.
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*
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* @param string|null $id Null to create a new section, the identifier to re-open an existing one
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*
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* @return self
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*/
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public function open(?string $id)
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{
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if (null === $id || null === $session = $this->get($id)) {
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$session = $this->children[] = new self(microtime(true) * 1000, $this->morePrecision);
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}
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return $session;
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}
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/**
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* @return string
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*/
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public function getId()
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{
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return $this->id;
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}
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/**
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* Sets the session identifier.
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*
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* @return $this
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*/
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public function setId(string $id)
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{
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$this->id = $id;
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return $this;
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}
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/**
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* Starts an event.
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*
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* @return StopwatchEvent
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*/
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public function startEvent(string $name, ?string $category)
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{
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if (!isset($this->events[$name])) {
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$this->events[$name] = new StopwatchEvent($this->origin ?: microtime(true) * 1000, $category, $this->morePrecision, $name);
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}
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return $this->events[$name]->start();
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}
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/**
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* Checks if the event was started.
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*
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* @return bool
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*/
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public function isEventStarted(string $name)
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{
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return isset($this->events[$name]) && $this->events[$name]->isStarted();
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}
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/**
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* Stops an event.
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*
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* @return StopwatchEvent
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*
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* @throws \LogicException When the event has not been started
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*/
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public function stopEvent(string $name)
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{
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if (!isset($this->events[$name])) {
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throw new \LogicException(sprintf('Event "%s" is not started.', $name));
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}
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return $this->events[$name]->stop();
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}
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/**
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* Stops then restarts an event.
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*
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* @return StopwatchEvent
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*
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* @throws \LogicException When the event has not been started
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*/
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public function lap(string $name)
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{
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return $this->stopEvent($name)->start();
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}
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/**
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* Returns a specific event by name.
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*
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* @return StopwatchEvent
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*
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* @throws \LogicException When the event is not known
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*/
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public function getEvent(string $name)
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{
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if (!isset($this->events[$name])) {
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throw new \LogicException(sprintf('Event "%s" is not known.', $name));
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}
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return $this->events[$name];
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}
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/**
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* Returns the events from this section.
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*
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* @return StopwatchEvent[]
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*/
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public function getEvents()
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{
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return $this->events;
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}
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}
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