wait
Waits for a response associated with the given id0 and id1.
This call establishes a one-time request/response exchange:
When subscribed, the provided data is published into the send table.
The function then suspends until a matching response is delivered via notify for the same
(id0, id1).If a timeout is specified, the suspension will be cancelled after the given duration, and a QuatiException.GatewayTimeout is thrown.
Exclusivity
Only one active waiter is allowed per (id0, id1) pair. If another waiter already exists, this function fails immediately with QuatiException.InternalServerError.
After either a response or timeout, both the request and response entries are automatically removed from the exchange table.
Return
the response payload sent via notify
Parameters
the outer identifier
the inner identifier
the request payload to send
optional maximum time to wait for a response
Throws
if a waiter already exists
if no response is received in time