🚀 go-pugleaf

On 30 Jul 89 14:18:04 GMT,
sjorr@rose.waterloo.edu (Stephen Orr) said:

Deven> The idea was to SetFunction() the FreeMem() function to zero
Deven> memory *as it is freed*.  Then either a SetFunction()ed
Deven> AllocMem() function or some separate task/function could check
Deven> the free list to make sure it is zeroed.  If not, it is a sign
Deven> of corruption.

Stephen>        One thing to watch for, zeroing the memory chunk may
Stephen> not be enough, when the OS coallesces free chunks it probably
Stephen> leaves the old forward pointer alone, and this could appear
Stephen> as 'corrupted memory' unless the coallesce is done one the
Stephen> fly just 'expanding' an existing free memory chunk, I'm not
Stephen> sure, but this is to be considered.

Oh!  Sharp thinking, there.  Yes, I had neglected to consider to that
extent.  I believe the coalescing is done by the FreeMem call.
Certainly it would need to be zeroed when combining adjacent free
memory blocks.

Deven
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