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	Commit message (Collapse)	Author	Age	Files	Lines
*	gh-110481: Implement inter-thread queue for biased reference counting (#114824)	Sam Gross	2024-02-09	1	-0/+198
	Biased reference counting maintains two refcount fields in each object: `ob_ref_local` and `ob_ref_shared`. The true refcount is the sum of these two fields. In some cases, when refcounting operations are split across threads, the ob_ref_shared field can be negative (although the total refcount must be at least zero). In this case, the thread that decremented the refcount requests that the owning thread give up ownership and merge the refcount fields.