[cairo] reference counting vs garbage collection

[Keith Packard]

Around 13 o'clock on Jan 5, Carl Worth wrote:

> Regardless, it does seem easy enough to remove the conflation:
> 
> _create		Allocate object. refcnt = 1. Connect dependent objects
> _reference	refcnt++
> _finish		Finalize dependent objects
> _destroy	if (--refcnt = 0) { _finish; Free object }

(I believe the term 'close' was used instead of 'finish' in the last 
message proposing this design).

This will work just fine for me, but loses some of the symmetry in the
create/destroy ref/unref model.

-keith


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