pthreads works, sorta

[Christopher Faylor]

On Wed, Jun 27, 2001 at 09:01:09AM -0700, Eric M. Monsler wrote:
>Steve Jorgensen wrote:
>>OK, I'm over my head to even try to participate in this, but it seems
>>to me that if you want to check for the condition where you can neither
>>read nor write
>
>I think that the check is for the condition that "one can both read and
>write", before proceeding.  The IsBad logic forces a somewhat reversed
>logical structure, i.e.  "if not both read and write, fail", which is
>coder-optimised to "if not write, fail", since if we can't read we also
>can't write.
>
>Read-only is failure, as is a NULL, or any other bad pointer.
>
>Assuming I've understood the previous discussions correctly...

You've got it right.  The pointers being checked should always be writable.

cgf

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