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Re: HFS+ reusable node ID's

On 1/30/01 3:01 PM, Markus Silpala wrote:
> Mac OS 9.0.4 and earlier, a Node ID is used exactly once per volume per
> initialization. When you replace a file in the Finder, the new one keeps its
> node ID, and the node ID of the replaced file ceases to exist.
>
> An alias to the old file still works because the alias record also holds path
> information, and falls back on that if the old node ID doesn't exist anymore.
> I wouldn't expect that to break in Mac OS X.

Well, that depends on your definition of "break", since node IDs are now
being reused. And according to email@hidden:

On 1/29/01 1:29 PM, Mark Day (email@hidden) wrote:
> Note that it is possible to construct scenarios where a node ID is
> reused immediately, when you happen to delete an object whose ID
> happens to be the next value that will be used.

If a node ID is reused immediately and an alias was pointing to that node
ID, what happens when you follow that alias?

-John

References: 
 >Re: HFS+ reusable node ID's (From: Markus Silpala <email@hidden>)



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