Is it safe to fork from within a thread?

Question

Let me explain: I have already been developing an application on Linux which forks and execs an external binary and waits for it to finish. Results are communicated by shm f

Answer 1

Provided you quickly either call exec() or _exit() in the forked child process, you're ok in practice.

You might want to use posix_spawn() instead which will probably do the Right Thing.