| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185 | <?php/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */namespace Symfony\Component\Stopwatch;/** * Stopwatch section. * * @author Fabien Potencier <fabien@symfony.com> */class Section{    /**     * @var StopwatchEvent[]     */    private $events = [];    /**     * @var float|null     */    private $origin;    /**     * @var bool     */    private $morePrecision;    /**     * @var string     */    private $id;    /**     * @var Section[]     */    private $children = [];    /**     * @param float|null $origin        Set the origin of the events in this section, use null to set their origin to their start time     * @param bool       $morePrecision If true, time is stored as float to keep the original microsecond precision     */    public function __construct(float $origin = null, bool $morePrecision = false)    {        $this->origin = $origin;        $this->morePrecision = $morePrecision;    }    /**     * Returns the child section.     *     * @return self|null     */    public function get(string $id)    {        foreach ($this->children as $child) {            if ($id === $child->getId()) {                return $child;            }        }        return null;    }    /**     * Creates or re-opens a child section.     *     * @param string|null $id Null to create a new section, the identifier to re-open an existing one     *     * @return self     */    public function open(?string $id)    {        if (null === $id || null === $session = $this->get($id)) {            $session = $this->children[] = new self(microtime(true) * 1000, $this->morePrecision);        }        return $session;    }    /**     * @return string     */    public function getId()    {        return $this->id;    }    /**     * Sets the session identifier.     *     * @return $this     */    public function setId(string $id)    {        $this->id = $id;        return $this;    }    /**     * Starts an event.     *     * @return StopwatchEvent     */    public function startEvent(string $name, ?string $category)    {        if (!isset($this->events[$name])) {            $this->events[$name] = new StopwatchEvent($this->origin ?: microtime(true) * 1000, $category, $this->morePrecision, $name);        }        return $this->events[$name]->start();    }    /**     * Checks if the event was started.     *     * @return bool     */    public function isEventStarted(string $name)    {        return isset($this->events[$name]) && $this->events[$name]->isStarted();    }    /**     * Stops an event.     *     * @return StopwatchEvent     *     * @throws \LogicException When the event has not been started     */    public function stopEvent(string $name)    {        if (!isset($this->events[$name])) {            throw new \LogicException(sprintf('Event "%s" is not started.', $name));        }        return $this->events[$name]->stop();    }    /**     * Stops then restarts an event.     *     * @return StopwatchEvent     *     * @throws \LogicException When the event has not been started     */    public function lap(string $name)    {        return $this->stopEvent($name)->start();    }    /**     * Returns a specific event by name.     *     * @return StopwatchEvent     *     * @throws \LogicException When the event is not known     */    public function getEvent(string $name)    {        if (!isset($this->events[$name])) {            throw new \LogicException(sprintf('Event "%s" is not known.', $name));        }        return $this->events[$name];    }    /**     * Returns the events from this section.     *     * @return StopwatchEvent[]     */    public function getEvents()    {        return $this->events;    }}
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