Add weak_ptr<void> callback_lifetime to SubscriptionOptions #2725
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Avoid potential use after free usage of a registered subscription callback function by allowing user to specify a weak_ptr to be checked for expiry before the associated subscription callback is called. If user does not specify callback_lifetime, the mechanism falls back to a tracking the lifetime of a user specified callback_group, failing that it tracks the lifetime of the nodes default_callback_group. Signed-off-by: Mike Wake <[email protected]>
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This was referenced Jan 12, 2025
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Avoid potential use after free usage of a registered subscription callback function by allowing user to specify a weak_ptr to be checked for
expiry before the associated subscription callback is called.
If user does not specify callback_lifetime,
the mechanism falls back to a tracking the lifetime of a user specified callback_group, failing that it tracks the lifetime of the nodes default_callback_group.