Async/bin/supervisor

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#!/usr/bin/env php
<?php
/**
* FuzeWorks Async Library
*
* The FuzeWorks PHP FrameWork
*
* Copyright (C) 2013-2020 TechFuze
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* @author TechFuze
* @copyright Copyright (c) 2013 - 2020, TechFuze. (http://techfuze.net)
* @license https://opensource.org/licenses/MIT MIT License
*
* @link http://techfuze.net/fuzeworks
* @since Version 1.0.0
*
* @version Version 1.0.0
*/
use FuzeWorks\Async\SuperVisor;
use FuzeWorks\Async\Tasks;
use FuzeWorks\Async\TasksException;
use FuzeWorks\Exception\InvalidArgumentException;
use FuzeWorks\Exception\LibraryException;
use FuzeWorks\Factory;
// First perform a PHP version check
if (version_compare('7.1.0', PHP_VERSION, '>')) {
fwrite(
STDERR,
sprintf(
'FuzeWorks Async requires PHP 7.1 or higher.' . PHP_EOL .
'You are using PHP %s (%s).' . PHP_EOL,
PHP_VERSION,
PHP_BINARY
)
);
die(1);
}
// First load composer
$autoloaders = [
__DIR__ . '/../../autoload.php',
__DIR__ . '/../vendor/autoload.php',
__DIR__ . '/vendor/autoload.php'
];
foreach ($autoloaders as $file)
if (file_exists($file))
require_once($file);
// If a bootstrap is provided, use that one
$arguments = getopt('', ['bootstrap:']);
if (!isset($arguments['bootstrap']) || empty($arguments['bootstrap']))
{
fwrite(STDERR, "Could not load supervisor. No bootstrap provided.");
die(1);
}
// Load the file. If it doesn't exist, fail.
$file = $arguments['bootstrap'];
if (!file_exists($file))
{
fwrite(STDERR, "Could not load supervisor. Provided bootstrap doesn't exist.");
die(1);
}
// Load the bootstrap
/** @var Factory $container */
$container = require($file);
// Check if container is a Factory
if (!$container instanceof Factory)
{
fwrite(STDERR, "Could not load supervisor. Provided bootstrap is not a valid bootstrap.");
die(1);
}
// Check if the Async library is already loaded. If not, load it.
// @todo: Better check in libraries for existing library
try {
/** @var Tasks $lib */
$lib = $container->libraries->get('async');
} catch (LibraryException $e) {
$container->libraries->addLibraryClass('async', '\FuzeWorks\Async\Tasks');
/** @var Tasks $lib */
$lib = $container->libraries->get('async');
}
// And finally, run the supervisor
try {
$supervisor = $lib->getSuperVisor();
while ($supervisor->cycle() === SuperVisor::RUNNING) {
usleep(250000);
}
// Write results
fwrite(STDOUT, "SuperVisor finished scheduled tasks.");
} catch (InvalidArgumentException | TasksException | LibraryException $e) {
fwrite(STDERR, sprintf('FuzeWorks Async could not load.' . PHP_EOL .
'Exception: ' . $e->getMessage() . PHP_EOL)
);
}