Gordon Sim created PROTON-17:
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Summary: pn_drain(link, 0) doesn't trigger issuing of flow
Key: PROTON-17
URL: https://issues.apache.org/jira/browse/PROTON-17
Project: Qpid Proton
Issue Type: Bug
Components: proton-c
Reporter: Gordon Sim
In implementing a timed synchronous get, I issue one unit of credit, wait for
the time specified, then I want to drain that credit in order to unambiguously
determine if a message arrived or not. I don't want to increase the credit so
in calling pn_drain() I want the second parameter to be 0. However doing so
fails to trigger a new flow to be sent (with the drain flag set). Using a
non-zero credit value, i.e. increasing the credit, does trigger the flow.
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