[MIT-Scheme-devel] non-recursive mutexes

[Arthur A. Gleckler]

Hi, Taylor.  Long time, no see.  I hope all is well.

I'm just upgrading to MIT Scheme 9.2, and my code is breaking in several places because of your change to Remove support for recursion in WITH-THREAD-MUTEX-LOCKED.  Can you tell me why you made that change?  I can't see a correctness or performance advantage, and the change list comment gives no justification.  Not supporting recursion is a nuisance in cases where one has utility procedures that may or may not be run in a context where the lock is already held.

Thanks.