When to check for EINTR and repeat the function call?

Question

I am programming a user application for a embedded Linux system, and I am using the common functions such as open, close, read, ioctl, etc. for the devices. Now, I read abou

Answer 1

Is your application event driven? (Meaning its main loop include select()/epoll_wait() call).

In an event driven application you can block all signals and only unblock them for the duration of pselect()/epoll_pwait() call. This way the rest of your code never have to deal with EINTR.