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https://issues.apache.org/jira/browse/MINIFICPP-2155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Zink reassigned MINIFICPP-2155:
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Assignee: (was: Martin Zink)
> Imporve StreamCallbacks error handling
> --------------------------------------
>
> Key: MINIFICPP-2155
> URL: https://issues.apache.org/jira/browse/MINIFICPP-2155
> Project: Apache NiFi MiNiFi C++
> Issue Type: Improvement
> Reporter: Martin Zink
> Priority: Minor
>
> Currently io::InputStreamCallback and io::OutputStreamCallback use int64_t to
> return the results where the static_cast<size_t>(-1) and
> static_cast<size_t>(-2) signals something went wrong, and anything other
> than those means the number of written/read bytes.
> It would be better to use nonstd::expected<size_t, std::error_code> so we can
> further propage the reason behind the errors so we dont need logging inside
> these callbacks.
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