Handling multiple SIGCHLD

Question

In a system running Linux 2.6.35+ my program creates many child processes and monitors them. If a child process dies I do some clean-up and spawn the process again. I use <

Answer 1

Actually the hassle-free way would be the waitfd functionally that would allow you to add a specific pid to poll()/epoll(). Unfortunately, it wasn't accepted to Linux years ago when it was proposed.