Non-blocking input

[Mario Becroft <mb@tos.pl.net>]

Could someone explain how a file or device can be configured for
non-blocking input, so that when reading characters from the file when no
more characters are available the read call returns instead of blocking
until characters become available.

-- 
Mario Becroft                        Auckland, New Zealand
mb@tos.pl.net                    http://www.pl.net/~mario/      |\__/,|   (`\
Tariland, Atari Support in New Zealand                        _.|o o  |_   ) )
tariland@tos.pl.net     http://www.pl.net/~mario/tariland/ --(((---(((--------