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Direktori : /proc/thread-self/root/home2/selectio/www/fms-worksuite/vendor/amphp/amp/lib/ |
Current File : //proc/thread-self/root/home2/selectio/www/fms-worksuite/vendor/amphp/amp/lib/CancellationToken.php |
<?php namespace Amp; /** * Cancellation tokens are simple objects that allow registering handlers to subscribe to cancellation requests. */ interface CancellationToken { /** * Subscribes a new handler to be invoked on a cancellation request. * * This handler might be invoked immediately in case the token has already been cancelled. Returned generators will * automatically be run as coroutines. Any unhandled exceptions will be throw into the event loop. * * @param callable(CancelledException) $callback Callback to be invoked on a cancellation request. Will receive a * `CancelledException` as first argument that may be used to fail the operation's promise. * * @return string Identifier that can be used to cancel the subscription. */ public function subscribe(callable $callback): string; /** * Unsubscribes a previously registered handler. * * The handler will no longer be called as long as this method isn't invoked from a subscribed callback. * * @param string $id * * @return void */ public function unsubscribe(string $id); /** * Returns whether cancellation has been requested yet. * * @return bool */ public function isRequested(): bool; /** * Throws the `CancelledException` if cancellation has been requested, otherwise does nothing. * * @return void * * @throws CancelledException */ public function throwIfRequested(); }