public function unregister(ClientSession $session, $Uri)
{
// TODO: maybe add an option to wait for pending calls to finish
$registration = null;
foreach ($this->registrations as $k => $r) {
if (isset($r['procedure_name'])) {
if ($r['procedure_name'] == $Uri) {
$registration =& $this->registrations[$k];
break;
}
}
}
if ($registration === null) {
Logger::warning($this, "registration not found: " . $Uri);
return false;
}
// we remove the callback from the client here
// because we don't want the client to respond to any more calls
$registration['callback'] = null;
$futureResult = new Deferred();
if (!isset($registration["registration_id"])) {
// this would happen if the registration was never acknowledged by the router
// we should remove the registration and resolve any pending deferreds
Logger::error($this, "Registration ID is not set while attempting to unregister " . $Uri);
// reject the pending registration
$registration['futureResult']->reject();
// TODO: need to figure out what to do in this off chance
// We should still probably return a promise here that just rejects
// there is an issue with the pending registration too that
// the router may have a "REGISTERED" in transit and may still think that is
// good to go - so maybe still send the unregister?
}
$requestId = Utils::getUniqueId();
// save the request id so we can find this in the registration
// list to call the deferred and remove it from the list
$registration['unregister_request_id'] = $requestId;
$registration['unregister_deferred'] = $futureResult;
$unregisterMsg = new UnregisterMessage($requestId, $registration['registration_id']);
$session->sendMessage($unregisterMsg);
return $futureResult->promise();
}