Function qpid_proton_sys::pn_messenger_outgoing_tracker

pub unsafe extern "C" fn pn_messenger_outgoing_tracker(
    messenger: *mut pn_messenger_t
) -> i64

Get a tracker for the outgoing message most recently given to pn_messenger_put. This tracker may be used with pn_messenger_status to determine the delivery status of the message, as long as the message is still within your outgoing window.