Rafael H. Schloming created PROTON-222:
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Summary: pn_messenger_send returns before message data has been
written to the wire
Key: PROTON-222
URL: https://issues.apache.org/jira/browse/PROTON-222
Project: Qpid Proton
Issue Type: Bug
Components: proton-c, proton-j
Affects Versions: 0.3
Reporter: Rafael H. Schloming
Assignee: Rafael H. Schloming
Fix For: 0.4
Currently, pn_messender_send will block until the engine reports there are no
queued messages being held. The problem arises because the queued message count
only reports message data that is being held by the engine due to insufficient
credit to send the messages. Messages may also be sitting in the transport's
encoded frame buffer waiting to be written to the wire, and messages may also
be held by the driver itself. This latter possibly is problematic given the
current transport interface because there is no way for an application using
the engine (in this case messenger) to know whether data is being held by the
driver without introducing an undesirable coupling between the application and
the driver implementation.
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