[Chicken-users] POSIX fork & srfi-18 interactions

[Andy Bennett]

Hi,

I'm trying to fork & exec using the process-... procedures from the
posix egg.

My program (which involves spiffy) has a bunch of srfi-18 threads
running and I note that one doesn't get the same semantics as with fork
and pthreads in C. Namely, the new fork contains all the srfi-18 threads
and they're all running. There's no opportunity to get in there and stop
them from running in the child without declaring the whole module
"disable-interrupts".

The reason I need to fork and then exec is that I need to fiddle with
some file descriptors in the child before I exec.

For now I've written a fork-exec function in C and bound it to a
foreign-lambda. I believe this will work as the chicken scheduler will
be disabled throughout the single call to the foreign-lambda.


Is this interaction between the posix egg and srfi-18 considered a bug?
Is there anything that can be done about it?



Regards,
@ndy

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