Felix Filozov <ffilo...@gmail.com> writes: > The implementation uses locking, so its efficiency could improved. I'm > interested in your suggestions on how to do that.
Indeed, this interface is much better from the user's point of view. I feel a bit uneasy about the implementation though. I found this message from Duane Rettig (<https://groups.google.com/forum/#!msg/comp.lang.lisp/7rhuvXaiR_g/AQ2-i6-74s4J>) that suggests that the nearest ACL gets to thread-local variables is by defining a special variable then adding it to the list of default bindings. How about an interface like this? (with-errno (some-foreign-function-with-the-errno-option-on) (get-errno)) or perhaps (with-errno (errno) (some-foreign-function-with-the-errno-option-on) errno) Cheers, -- Luís Oliveira http://kerno.org/~luis