Gnulib module: poll
Portability problems fixed by Gnulib:
- This function is missing on some platforms:
mingw, MSVC 14, HP NonStop.
- This function doesn’t work on special files like /dev/null and ttys like
/dev/tty on some platforms:
Portability problems not fixed by Gnulib:
- Under Windows, when passing a pipe, Gnulib’s
poll replacement might
return 0 even before the timeout has passed. Programs using it with pipes can
thus busy wait.
- On some platforms, file descriptors other than sockets do not support
POLLHUP; they will return a "readable" or "writable" status instead:
AIX 7.2, HP NonStop.