miniflux-legacy/miniflux/vendor/PicoTools/Chrono.php

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2013-02-18 03:48:21 +01:00
<?php
/*
* This file is part of picoTools.
*
* (c) Frédéric Guillot http://fredericguillot.com
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PicoTools;
/**
* Chrono, tool for benchmarking
* Calculate the duration of your code
*
* @author Frédéric Guillot
*/
class Chrono
{
/**
* Chronos values
*
* @access private
* @static
* @var array
*/
private static $chronos = array();
/**
* Start a chrono
*
* @access public
* @static
* @param string $name Chrono name
*/
public static function start($name)
{
self::$chronos[$name] = array(
'start' => microtime(true),
'finish' => 0
);
}
/**
* Stop a chrono
*
* @access public
* @static
* @param string $name Chrono name
*/
public static function stop($name)
{
if (! isset(self::$chronos[$name])) {
throw new \RuntimeException('Chrono not started!');
}
self::$chronos[$name]['finish'] = microtime(true);
}
/**
* Get a duration of a chrono
*
* @access public
* @static
* @return float
*/
public static function duration($name)
{
if (! isset(self::$chronos[$name])) {
throw new \RuntimeException('Chrono not started!');
}
return self::$chronos[$name]['finish'] - self::$chronos[$name]['start'];
}
/**
* Show all durations
*
* @access public
* @static
*/
public static function show()
{
foreach (self::$chronos as $name => $values) {
echo $name.' = ';
echo round($values['finish'] - $values['start'], 2).'s';
echo PHP_EOL;
}
}
}