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3 liveuser 1 
<?php
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namespace React\EventLoop\Timer;
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use React\EventLoop\TimerInterface;
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/**
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 * The actual connection implementation for TimerInterface
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 *
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 * This class should only be used internally, see TimerInterface instead.
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 *
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 * @see TimerInterface
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 * @internal
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 */
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final class Timer implements TimerInterface
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{
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    const MIN_INTERVAL = 0.000001;
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    private $interval;
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    private $callback;
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    private $periodic;
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    /**
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     * Constructor initializes the fields of the Timer
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     *
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     * @param float         $interval The interval after which this timer will execute, in seconds
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     * @param callable      $callback The callback that will be executed when this timer elapses
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     * @param bool          $periodic Whether the time is periodic
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     */
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    public function __construct($interval, $callback, $periodic = false)
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    {
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        if ($interval < self::MIN_INTERVAL) {
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            $interval = self::MIN_INTERVAL;
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        }
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        $this->interval = (float) $interval;
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        $this->callback = $callback;
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        $this->periodic = (bool) $periodic;
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    }
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    public function getInterval()
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    {
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        return $this->interval;
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    }
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    public function getCallback()
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    {
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        return $this->callback;
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    }
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    public function isPeriodic()
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    {
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        return $this->periodic;
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    }
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}