Optimise annotation expansion for mc_amqp#15743
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Pull request overview
Optimizes how mc_amqp expands mc:annotations() into AMQP 1.0 message annotations during protocol_state/2, aiming to reduce per-annotation list scans.
Changes:
- Prefilters existing message annotations (
MA0) before folding in new annotations fromAnns. - Replaces
lists:keystore/4-based upsert with O(1) consing for newly added annotations. - Leaves the previous upsert helper and call sites commented out.
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There are some test gaps but they are not new, so can be addressed with a follow-up PR when the pre- |
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Optimise annotation expansion for mc_amqp (backport #15743)
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