Re: [MIT-Scheme-devel] failure while re-reading microcode tables

[Chris Hanson]

Another alternative is to eliminate utabmd.scm altogether, which I've
just finished doing.

On Thu, Aug 27, 2009 at 8:52 AM, Taylor R Campbell<address@hidden> wrote:
> If the user has no permission to read some directory in the pathname
> returned by the MICROCODE-TABLES-FILENAME primitive, the procedure
> RE-READ-MICROCODE-TABLES! fails, even if the subsequent microcode
> identification would match.  This is because FILE-EXISTS? signals an
> error when it can't tell whether the file exists.  Using FILE-EXISTS?
> in the first place leads to a race condition anyway, but probably we
> don't care much about that.
>
> Is it safe to use the condition system in RE-READ-MICROCODE-TABLES!,
> or should there be a variant of FILE-EXISTS? that means not so much
> `does this file exist?' but `give me #T if this file exists, and #F
> for any other state of affairs'?
>
>
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