> Does anyone know of a free implementation of pthreads on mach? If one > exists, would it be a good place to start?
I don't know of any, and it probably would not be so much help anyway. You can glean the methods of doing things in Mach from cthreads (aka hurd/libthreads). More of the work has to do with libc than with Mach. The pthreads implementation should be merged with linuxthreads, yielding a single pthreads implementation for glibc with (hopefully small) OS-dependent portions for linux and for mach. So, the starting place for anyone who wants to work on it, is cthreads + linuxthreads.
