[jira] [Created] (PROTON-1988) [cpp] streamable message support

["Alan Conway (JIRA)" <ji...@apache.org>]

Alan Conway created PROTON-1988:
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             Summary: [cpp] streamable message support
                 Key: PROTON-1988
                 URL: https://issues.apache.org/jira/browse/PROTON-1988
             Project: Qpid Proton
          Issue Type: Improvement
          Components: cpp-binding
    Affects Versions: proton-c-0.26.0
            Reporter: Alan Conway


C++ API support for streaming large messages in chunks  (too large to fit entire message in memory)

The C link-level API does support streaming messages in chunks, but the C message encoder/decoder and the proton::message type do. Provide an alternative (or extended) C++ message type with a byte-stream API to send/receive the body data in chunks, without every requiring the entire body to be held in memory.

Use cases:
 # Only the message body need be streamed. Properties are encoded/decode as a unit before sending/receiving any of the body. Most client/endpoint applications would work this way.
 # The entire message, headers, properties and all, need to be streamed, with support for partial decoding of an incoming message and efficient pass thru (incoming to outgoing without decode/re-encode). Only advanced intermediaries are likely to need this (e.g. this is what dispatch router does.)

 

 

 



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