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'? _______________________________________________ MIT-Scheme-devel mailing list [email protected] http://lists.gnu.org/mailman/listinfo/mit-scheme-devel
