session: fix some expectations for C session handlers - #23297
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Girgias merged 1 commit intoAug 15, 2026
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We *explicitly* say that mod_data will be not NULL for create_sid hooks and we violate this invariant if SessionHandler::open() is overwridden without calling the parent method. At the same time add comments explaining the situation and fix some other potential footguns.
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We explicitly say that mod_data will be not NULL for create_sid hooks and we violate this invariant if SessionHandler::open() is overwridden without calling the parent method.
At the same time add comments explaining the situation and fix some other potential footguns.