> From: bear <xxxxxx@sonic.net>

    > >The lock/unlock pattern can solve it -- not in the general case but in
    > >a useful way -- and is quite portable.

    > This is true -- but impossible within the context of the current draft of
    > the SRFI because there is no call to hang the unlock() method on.

I don't understand.  The unlock() should be an explicit part of the
FFI (when/if r/w-sharing-semantics string extraction is added).

-t