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<?php
namespace Amp\Parallel\Context;
use Amp\Loop;
use Amp\Promise;
const LOOP_FACTORY_IDENTIFIER = ContextFactory::class;
/**
* @param string|string[] $script Path to PHP script or array with first element as path and following elements options
* to the PHP script (e.g.: ['bin/worker', 'Option1Value', 'Option2Value'].
*
* @return Context
*/
function create($script): Context
{
return factory()->create($script);
}
/**
* Creates and starts a process based on installed extensions (a thread if ext-parallel is installed, otherwise a child
* process).
*
* @param string|string[] $script Path to PHP script or array with first element as path and following elements options
* to the PHP script (e.g.: ['bin/worker', 'Option1Value', 'Option2Value'].
*
* @return Promise<Context>
*/
function run($script): Promise
{
return factory()->run($script);
}
/**
* Gets or sets the global context factory.
*
* @param ContextFactory|null $factory
*
* @return ContextFactory
*/
function factory(?ContextFactory $factory = null): ContextFactory
{
if ($factory === null) {
$factory = Loop::getState(LOOP_FACTORY_IDENTIFIER);
if ($factory) {
return $factory;
}
$factory = new DefaultContextFactory;
}
Loop::setState(LOOP_FACTORY_IDENTIFIER, $factory);
return $factory;
}