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https://issues.apache.org/jira/browse/PROTON-1767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robbie Gemmell updated PROTON-1767:
-----------------------------------
Summary: allow the Transport to expose an output buffer that is not
read-only (was: [proton-j] Allow the Transport to expose an output buffer that
is not read-only)
> allow the Transport to expose an output buffer that is not read-only
> --------------------------------------------------------------------
>
> Key: PROTON-1767
> URL: https://issues.apache.org/jira/browse/PROTON-1767
> Project: Qpid Proton
> Issue Type: Improvement
> Components: proton-j
> Affects Versions: proton-j-0.25.0
> Reporter: Timothy Bish
> Assignee: Timothy Bish
> Priority: Minor
> Fix For: proton-j-0.26.0
>
>
> In some cases the read-only output buffer exposed by TransportImpl by calling
> head() or getOutputBuffer() can lead to extra intermediate copies of the
> buffer based on the IO framework being used to transmit the bytes (such as
> current Netty releases). This is due to the fact that the read-only buffer
> reports that it doesn't have a backing array so the frameworks try to work
> around this to optimize the transfer of bytes. For uses who are aware of
> this and can ensure they never tamper with the buffer contents that aren't
> consumed we should let them choose to expose a writable duplicate of the
> output buffer.
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