Public bug reported:
man epoll_wait states:
EINTR The call was interrupted by a signal handler before any of the
requested events occurred or the timeout expired; see signal(7).
However, epoll_wait does not return EINTR when the timeout expires, it
simply returns 0 as number of file descriptors, and errno = 0.
This is the correct behaviour (otherwise there would be no way to tell
a signal interruption from a timeout one).
** Affects: ubuntu
Importance: Undecided
Status: New
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epoll_wait man page error
https://bugs.launchpad.net/bugs/480566
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