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<?php
namespace React\EventLoop;
/**
* [Deprecated] The `Factory` class exists as a convenient way to pick the best available event loop implementation.
*
* @deprecated 1.2.0 See Loop instead.
* @see Loop
*/
final class Factory
{
/**
* [Deprecated] Creates a new event loop instance
*
* ```php
* // deprecated
* $loop = React\EventLoop\Factory::create();
*
* // new
* $loop = React\EventLoop\Loop::get();
* ```
*
* This method always returns an instance implementing `LoopInterface`,
* the actual event loop implementation is an implementation detail.
*
* This method should usually only be called once at the beginning of the program.
*
* @deprecated 1.2.0 See Loop::get() instead.
* @see Loop::get()
*
* @return LoopInterface
*/
public static function create()
{
$loop = self::construct();
Loop::set($loop);
return $loop;
}
/**
* @internal
* @return LoopInterface
*/
private static function construct()
{
// @codeCoverageIgnoreStart
if (\function_exists('uv_loop_new')) {
// only use ext-uv on PHP 7
return new ExtUvLoop();
}
if (\class_exists('libev\EventLoop', false)) {
return new ExtLibevLoop();
}
if (\class_exists('EvLoop', false)) {
return new ExtEvLoop();
}
if (\class_exists('EventBase', false)) {
return new ExtEventLoop();
}
if (\function_exists('event_base_new') && \PHP_MAJOR_VERSION === 5) {
// only use ext-libevent on PHP 5 for now
return new ExtLibeventLoop();
}
return new StreamSelectLoop();
// @codeCoverageIgnoreEnd
}
}
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