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caff1023ea
To continue this formatting madness, here's a tiny patch that adds unified formatting for control structures like if and loops as well as classes, their methods and anonymous functions. This basically forces the constructs to start on the same line. This is not exactly what PSR2 wants, but I think we can have a few exceptions with "our" style. The starting of braces on the same line is pracrically standard for our code. This also removes and empty lines from method/function bodies at the beginning and end. Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>
89 lines
3.3 KiB
PHP
89 lines
3.3 KiB
PHP
<?php
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/**
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*
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* @copyright Copyright (c) 2017, Daniel Calviño Sánchez (danxuliu@gmail.com)
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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class Utils {
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/**
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* Waits at most $timeout seconds for the given condition to be true,
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* checking it again every $timeoutStep seconds.
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*
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* Note that the timeout is no longer taken into account when a condition is
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* met; that is, true will be returned if the condition is met before the
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* timeout expires, but also if it is met exactly when the timeout expires.
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* For example, even if the timeout is set to 0, the condition will be
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* checked at least once, and true will be returned in that case if the
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* condition was met.
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*
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* @param \Closure $conditionCallback the condition to wait for, as a
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* function that returns a boolean.
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* @param float $timeout the number of seconds (decimals allowed) to wait at
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* most for the condition to be true.
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* @param float $timeoutStep the number of seconds (decimals allowed) to
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* wait before checking the condition again.
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* @return boolean true if the condition is met before (or exactly when) the
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* timeout expires, false otherwise.
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*/
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public static function waitFor($conditionCallback, $timeout, $timeoutStep) {
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$elapsedTime = 0;
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$conditionMet = false;
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while (!($conditionMet = $conditionCallback()) && $elapsedTime < $timeout) {
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usleep($timeoutStep * 1000000);
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$elapsedTime += $timeoutStep;
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}
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return $conditionMet;
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}
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/**
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* Waits at most $timeout seconds for the server at the given URL to be up,
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* checking it again every $timeoutStep seconds.
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*
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* Note that it does not verify whether the URL returns a valid HTTP status
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* or not; it simply checks that the server at the given URL is accessible.
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*
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* @param string $url the URL for the server to check.
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* @param float $timeout the number of seconds (decimals allowed) to wait at
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* most for the server.
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* @param float $timeoutStep the number of seconds (decimals allowed) to
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* wait before checking the server again; by default, 0.5 seconds.
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* @return boolean true if the server was found, false otherwise.
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*/
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public static function waitForServer($url, $timeout, $timeoutStep = 0.5) {
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$isServerUpCallback = function () use ($url) {
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$curlHandle = curl_init($url);
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// Returning the transfer as the result of curl_exec prevents the
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// transfer from being written to the output.
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curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, true);
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$transfer = curl_exec($curlHandle);
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curl_close($curlHandle);
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return $transfer !== false;
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};
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return self::waitFor($isServerUpCallback, $timeout, $timeoutStep);
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}
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}
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