[MIT-Scheme-devel] hash-table/modify!

[Taylor R Campbell]

(HASH-TABLE/MODIFY! <hash-table> <key> <modifier> [<default>]) may
call <modifier> with interrupts blocked, or with the same mask as in
the caller of HASH-TABLE/MODIFY!.  I can't think of any reason to
block interrupts during the call to <modifier>, and it seems confusing
to me to call it in one of two very different states; does it seem
sensible to pull the call to it outside WITH-TABLE-LOCKED! in the body
of MAKE-METHOD:MODIFY!'s lambda in hashtb.scm?  And if we made that
change, would it b necessary to lock the table at all (i.e., to block
interrupts) for the single write that SET-ENTRY-DATUM! incurs?