n Sun Sparc, there is no multiprocessing in CMUCL, so I'm currently trying
to use fork() to start multiple processes instead. The problem is that when
the child process finish. Normally you then use waitpid() in the signal handler
for SIGCHLD to avoid the child process being a zombie. The problem is that
there is no waitpid in the unix package as far as I can see. Do I have to
import the waitpid call using FFI(alien) or is there another way to ensure
that forked processes are terminated correctly?
--
--
Gisle S�lensminde
Computational biology unit, University of Bergen, Norway
Email: ·····@cbu.uib.no
Biology easily has 500 years of exciting problems to work on. (Donald Knuth)
>>>>> "Gisle" == lensminde <Gisle> writes:
Gisle> for SIGCHLD to avoid the child process being a zombie. The
Gisle> problem is that there is no waitpid in the unix package as
Gisle> far as I can see. Do I have to import the waitpid call
Gisle> using FFI(alien) or is there another way to ensure that
Gisle> forked processes are terminated correctly?
Probably an oversight. For now, you'll have to make your own waitpid
call with alien.
Ray
Gisle S�lensminde <·····@apal.ii.uib.no> writes:
> The problem is that
> there is no waitpid in the unix package as far as I can see. Do I have to
> import the waitpid call using FFI(alien) or is there another way to ensure
> that forked processes are terminated correctly?
There is a binding for wait3 in the EXT package. I also suggest that
you study PROCESS-WAIT and the SIGCHLD handler in run-program.lisp;
perhaps you can reuse or extend it.
--helmut