Re: rescheduling

[William S. Shu]

>MD> All objects have a list that holds all the notify functions added with
>MD> addRef:withArgument.  These are all called before the object is
>MD> deallocated and the references disappear.
>
>WS> Does this mean if I used addRef:withArgument THRICE with the same
>WS> (identical) receiver and arguments, as in:
>
>[example deleted]
>
>WS> the same object will be called THRICE before being deallocated by drop?
(I
>WS> would be more at ease if this is the case!)
>
>Yes, notify will be called three times, and then the deallocation occurs.
>
What is the behaviour of removeRef: messages?  Would it have to be called
THRICE as well? or only once?

I take it that when it is called more times than addRef:withArgument, the
excess messages are ignored.  e.g., if removeRef: is sent FOUR times, after
THREE addRef:withArgument messages, the FOURTH message is ignored.

I am asking all these questions because I can have objects with multiple
relationships (multiple copies of the other's pointers), each of which is
controlled by (addRef:withArgument: - removeRef: ) pairs.

William.



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