shared_mutex: Add downgrade() operation - #50
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qookei
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Aug 29, 2026
Assisted-by: Claude Code (Opus 5)
Assisted-by: Claude Code (Opus 5)
Assisted-by: Claude Code (Opus 5)
Assisted-by: Claude Code (Opus 5)
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downgrade()allows us to turn exclusive locks into shared locks. This is useful for operations on a data structure that consist of a write phase followed by a read phase.