public function ensureActive()
{
$isOwner = false;
if (!$this->hasFaulted && count($this->queue) > 0) {
$isOwner = !$this->isAcquired;
$this->isAcquired = true;
}
if (!$isOwner) {
return;
}
$this->disposable->setDisposable($this->scheduler->scheduleRecursive(function ($recurse) {
$parent = $this;
if (count($parent->queue) > 0) {
$work = array_shift($parent->queue);
} else {
$parent->isAcquired = false;
return;
}
try {
if (!is_callable($work)) {
throw new Exception("work is not callable");
}
$res = $work();
} catch (Exception $e) {
$res = $e;
}
if ($res instanceof Exception) {
$parent->queue = [];
$parent->hasFaulted = true;
throw $res;
}
$recurse($parent);
}));
}
