Function tracing_core::callsite::rebuild_interest_cache

pub fn rebuild_interest_cache()

Clear and reregister interest on every Callsite

This function is intended for runtime reconfiguration of filters on traces when the filter recalculation is much less frequent than trace events are. The alternative is to have the Subscriber that supports runtime reconfiguration of filters always return Interest::sometimes() so that enabled is evaluated for every event.

This function will also re-compute the global maximum level as determined by the max_level_hint method. If a Subscriber implementation changes the value returned by its max_level_hint implementation at runtime, then it must call this function after that value changes, in order for the change to be reflected.