синхронное мультиплексирование ввода / вывода (synchronous I/O multiplexing)
Стандарты (Conforming to)
select
() conforms to POSIX.1-2001, POSIX.1-2008, and 4.4BSD
(select
() first appeared in 4.2BSD). Generally portable to/from
non-BSD systems supporting clones of the BSD socket layer
(including System V variants). However, note that the System V
variant typically sets the timeout variable before returning, but
the BSD variant does not.
pselect
() is defined in POSIX.1g, and in POSIX.1-2001 and
POSIX.1-2008.