5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/poll.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 mingw, MSVC 9, BeOS, HP NonStop.
15 This function doesn't work on special files like @file{/dev/null} and ttys like
16 @file{/dev/tty} on some platforms:
17 Mac OS X 10.4.0, AIX 5.3.
20 Portability problems not fixed by Gnulib:
23 Under BeOS, Gnulib's @code{poll} replacement can only be called on descriptors
24 created by the @code{socket} function, not on regular file descriptors.
27 Under Windows, when passing a pipe, Gnulib's @code{poll} replacement might
28 return 0 even before the timeout has passed. Programs using it with pipes can
32 Under HP NonStop, file descriptors other than sockets do not support
33 POLLHUP; they will return a "readable" status instead.