qpid::messaging.Message::setTTL( boost::uint64_t ttl ) - does not declare its units.
The currently exposed time types are AbsTime and Duration, which seems to imply they should be used for encapsulating time.
When a Duration object is passed to setTTL, the inline operator int64_t() returns the member variable nanoseconds.
When this value is propagated to the broker, it is interpreted around /cpp/src/qpid/broker/Message # 353 to be in millisecond units.
I would recommend:
- document Message.setTTL units clearly - pick ms or ns
- if ms, then overload setTTL to take a Duration object so we can use without error by converting in setTTL
- if ns, then somewhere downstream (OutgoingMessage#351 ?) the ns needs to get converted to ms