/**
* Runs the event loop until the promise is resolved. Should not be called within a running event loop.
*
* @param \Interop\Async\Promise $promise
*
* @return mixed Promise success value.
*
* @throws \Throwable Promise failure reason.
*/
function wait(Promise $promise)
{
$resolved = false;
Loop::execute(function () use(&$resolved, &$value, &$exception, $promise) {
$promise->when(function ($e, $v) use(&$resolved, &$value, &$exception) {
Loop::stop();
$resolved = true;
$exception = $e;
$value = $v;
});
}, Loop::get());
if (!$resolved) {
throw new \Error("Loop emptied without resolving promise");
}
if ($exception) {
throw $exception;
}
return $value;
}
