Alan Conway created PROTON-1067:
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Summary: python messenger: cannot acknowledge messages, messenger
forces auto-ack or pre-settled.
Key: PROTON-1067
URL: https://issues.apache.org/jira/browse/PROTON-1067
Project: Qpid Proton
Issue Type: Bug
Components: python-binding
Affects Versions: 0.11
Reporter: Alan Conway
In order to manually acknowledge received messages messenger requires you to:
1. set "incoming_window" > 0, otherwise messenger auto-settles all messages.
2. set "snd_settled_mode" to SND_UNSETTLED so that the remote end does not
pre-settle messages.
However the python binding (and I think all the bindings) for messenger do not
allow you to call pn_messenger_set_snd_settled_mode, which defaults to
SND_SETTLED. Thus it is impossible to manually accept messages because either
(with incoming_window==0) messenger auto-settles them or (with incoming_window
> 0) messenger's subscribe requests SND_SETTLED on the incoming link so the
other end sends pre-settled messages.
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