Cliff Jansen created PROTON-584:
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Summary: Proton-c transport reserves large buffers for brief use
Key: PROTON-584
URL: https://issues.apache.org/jira/browse/PROTON-584
Project: Qpid Proton
Issue Type: Improvement
Components: proton-c
Affects Versions: 0.8
Reporter: Cliff Jansen
When processing transfer frames for incoming messages, Proton requires a
temporary buffer holding the whole transfer frame briefly in contiguous space
in the transport before moving it to the engine proper which holds the content
in a separate memory area.
pn_transport_capacity grows the buffer in the non-ssl case
(transport->input_buf), and openssl.c largely duplicates the code (including
the comment about "no limit") for ssl->inbuf for ssl connections.
Either way, a large message will trigger reserving a similarly large buffer for
the rest of the life of the connection.
Is it necessary for the transport to buffer the whole message body and hang on
to that memory?
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