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parallel/lib/Sync/Synchronizable.php
2017-01-09 11:11:25 -06:00

25 lines
859 B
PHP

<?php
namespace Amp\Parallel\Sync;
use AsyncInterop\Promise;
/**
* An object that can be synchronized for exclusive access across contexts.
*/
interface Synchronizable {
/**
* Asynchronously invokes a callback while maintaining an exclusive lock on the object.
*
* The arguments passed to the callback depend on the implementing object. If the callback throws an exception,
* the lock on the object will be immediately released.
*
* @param callable<(mixed ...$args): \Generator|mixed> $callback The synchronized callback to invoke.
* The callback may be a regular function or a coroutine.
*
* @return \AsyncInterop\Promise<mixed> Resolves with the return value of $callback or fails if $callback
* throws an exception.
*/
public function synchronized(callable $callback): Promise;
}