85 lines
1.6 KiB
PHP
85 lines
1.6 KiB
PHP
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<?php
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namespace Illuminate\Support;
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use Throwable;
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class Timebox
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{
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/**
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* Indicates if the timebox is allowed to return early.
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*
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* @var bool
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*/
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public $earlyReturn = false;
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/**
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* Invoke the given callback within the specified timebox minimum.
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*
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* @template TCallReturnType
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*
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* @param (callable($this): TCallReturnType) $callback
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* @param int $microseconds
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* @return TCallReturnType
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*/
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public function call(callable $callback, int $microseconds)
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{
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$exception = null;
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$start = microtime(true);
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try {
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$result = $callback($this);
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} catch (Throwable $caught) {
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$exception = $caught;
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}
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$remainder = intval($microseconds - ((microtime(true) - $start) * 1000000));
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if (! $this->earlyReturn && $remainder > 0) {
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$this->usleep($remainder);
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}
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if ($exception) {
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throw $exception;
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}
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return $result;
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}
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/**
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* Indicate that the timebox can return early.
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*
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* @return $this
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*/
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public function returnEarly()
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{
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$this->earlyReturn = true;
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return $this;
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}
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/**
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* Indicate that the timebox cannot return early.
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*
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* @return $this
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*/
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public function dontReturnEarly()
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{
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$this->earlyReturn = false;
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return $this;
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}
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/**
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* Sleep for the specified number of microseconds.
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*
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* @param int $microseconds
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* @return void
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*/
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protected function usleep(int $microseconds)
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{
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Sleep::usleep($microseconds);
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}
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}
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