A mutex for inter-process ;-)

Xin LI delphij at delphij.net
Mon Mar 30 14:16:49 PDT 2009

Hash: SHA1

Randall Stewart wrote:
> Hi all:
> I have recently written a small set of routines that allow
> two process to have a "mutex" between them.. actually it allows
> all of the threads in any set of processes to have mutexes between
> themselves ;-)
> Anyway it seems to be working fairly well.. I still have to write a man
> page
> for it (documentation always last).. and eventually I would like to port in
> some of the WITNESS type features since the mutex's have names..
> I probably should also think about scaling it up a bit.. right now its
> really
> more for a small scale (100 or less mutexes)...
> Who should I talk to about getting this in... having it reviewed etc. I
> think
> it belongs in libthr since it really needs the tid of the pthreads from the
> pthread_t type... and for now I have a horrible hack in to get it ;-)

I think davidxu@ deischen@ and julian@?

BTW.  How do you handle with one process exit (abnormally) without
releasing the mutex?  Just curious :)

- --
Xin LI <delphij at delphij.net>	http://www.delphij.net/
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