> c) On systems (like Hugs and NHC) that have no synchronisation > primitives, you have to roll your own by calling C procedures.
Just to be clear about this. You are not rolling your own synchronization primitive, you are writing code that is guaranteed to contain no preemption points because it does not call Haskell. I don't know how to write synchronization primitives in C. Traditional thread mutexes don't do the job because they act on the thread scheduler (provided by libpthread or whatever) not on the finalizer scheduler (implemented in the runtime system). -- Alastair _______________________________________________ FFI mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/ffi
