On Mon, Nov 3, 2008 at 23:51, David Menendez <[EMAIL PROTECTED]> wrote: > On Mon, Nov 3, 2008 at 6:29 AM, Philip K.F. Hölzenspies > <[EMAIL PROTECTED]> wrote: >> >> I have now implemented my variable as a pair of MVars, one of which serves as >> a lock on the other. Both for performance reasons and for deadlock analysis, >> I would really like an atomic read on MVars, though. Does it exist? If not, >> why not? > > Have you considered using STM? All the operations on TMVars are atomic.
I will second this. At the very least, if you only need atomic read/write operations you can use TMVars and make aliases that compose with atomically: takeMVar = atomically . takeTMVar putMVar = atomically . putTMVar etc. cheers, Arnar _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
