Function qpid_proton_sys::pn_messenger_status

pub unsafe extern "C" fn pn_messenger_status(
    messenger: *mut pn_messenger_t, 
    tracker: i64
) -> pn_status_t

Track the status of a delivery. Get the current status of the delivery associated with the supplied tracker. This may return PN_STATUS_UNKOWN if the tracker has fallen outside the incoming/outgoing tracking windows of the messenger.