90 lines
1.7 KiB
PHP
90 lines
1.7 KiB
PHP
<?php
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/**
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* @package FOF
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* @copyright Copyright (c)2010-2021 Nicholas K. Dionysopoulos / Akeeba Ltd
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* @license GNU General Public License version 2, or later
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*/
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namespace FOF30\Timer;
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defined('_JEXEC') || die;
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/**
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* Timeout prevention timer
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*/
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class Timer
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{
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/**
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* Maximum execution time allowance per step
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*
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* @var integer
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*/
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private $max_exec_time = null;
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/**
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* Timestamp of execution start
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*
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* @var integer
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*/
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private $start_time = null;
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/**
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* Public constructor, creates the timer object and calculates the execution
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* time limits.
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*
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* @param integer $max_exec_time Maximum execution time, in seconds
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* @param integer $runtime_bias Runtime bias factor, as percent points of the max execution time
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*
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* @return Timer
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*/
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public function __construct($max_exec_time = 5, $runtime_bias = 75)
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{
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// Initialize start time
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$this->start_time = microtime(true);
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$this->max_exec_time = $max_exec_time * $runtime_bias / 100;
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}
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/**
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* Wake-up function to reset internal timer when we get unserialized
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*
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* @return void
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*/
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public function __wakeup()
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{
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// Re-initialize start time on wake-up
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$this->start_time = microtime(true);
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}
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/**
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* Gets the number of seconds left, before we hit the "must break" threshold
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*
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* @return float
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*/
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public function getTimeLeft()
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{
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return $this->max_exec_time - $this->getRunningTime();
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}
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/**
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* Gets the time elapsed since object creation/unserialization, effectively
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* how long this step is running
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*
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* @return float
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*/
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public function getRunningTime()
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{
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return microtime(true) - $this->start_time;
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}
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/**
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* Reset the timer
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*
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* @return void
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*/
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public function resetTime()
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{
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$this->start_time = microtime(true);
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}
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}
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