At 12:23 PM 5/30/00 -0700, you wrote:
>
>> After all, there should be some entry
>> in a mapping from handle to pointer somewhere.
>> This might cause problems later.
>
>I don't quite understand the question. Do mean such a mapping may exist
>inside the user's app, or do you mean inside the Memory Manager? (The
>Memory Manager has no trouble keeping everything straight.)
Inside the Memory Manager. Without looking at the source, it would be
logical for it to keep a mapping from handle to pointer or some such. If
you freed a locked pointer without unlocking it you might cause problems -
the overhead to handle this situation may be excessive (and therefore not
exist). I can see implementations where the memory manager does
semi-periodic sweeps of the handle mapping for things like "automatic"
memory deallocation when a program exits - which could cause wierd
behaviour to say the least.
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