1 /* Copyright (C) 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
20 #error "Never use <bits/select.h> directly; include <sys/select.h> instead."
24 /* This line MUST be split! Otherwise m4 will not change it.
26 We don't use `memset' because this would require a prototype and
27 the array isn't too big. */
28 #define __FD_ZERO(set) \
31 for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i) \
32 ((__fd_mask *) set)[__i] = '\0'; \
34 #define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
35 #define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
36 #define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))