mirror of https://github.com/Wind4/vlmcsd
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
8 years ago
|
/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
The GNU C Library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with the GNU C Library; if not, see
|
||
|
|
<http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#ifndef _SYS_SELECT_H
|
||
|
|
# error "Never use <bits/select.h> directly; include <sys/select.h> instead."
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <bits/wordsize.h>
|
||
|
|
|
||
|
|
|
||
|
|
#if defined __GNUC__ && __GNUC__ >= 2
|
||
|
|
|
||
|
|
# if __WORDSIZE == 64
|
||
|
|
# define __FD_ZERO_STOS "stosq"
|
||
|
|
# else
|
||
|
|
# define __FD_ZERO_STOS "stosl"
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# define __FD_ZERO(fdsp) \
|
||
|
|
do { \
|
||
|
|
int __d0, __d1; \
|
||
|
|
__asm__ __volatile__ ("cld; rep; " __FD_ZERO_STOS \
|
||
|
|
: "=c" (__d0), "=D" (__d1) \
|
||
|
|
: "a" (0), "0" (sizeof (fd_set) \
|
||
|
|
/ sizeof (__fd_mask)), \
|
||
|
|
"1" (&__FDS_BITS (fdsp)[0]) \
|
||
|
|
: "memory"); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#else /* ! GNU CC */
|
||
|
|
|
||
|
|
/* We don't use `memset' because this would require a prototype and
|
||
|
|
the array isn't too big. */
|
||
|
|
# define __FD_ZERO(set) \
|
||
|
|
do { \
|
||
|
|
unsigned int __i; \
|
||
|
|
fd_set *__arr = (set); \
|
||
|
|
for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \
|
||
|
|
__FDS_BITS (__arr)[__i] = 0; \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#endif /* GNU CC */
|
||
|
|
|
||
|
|
#define __FD_SET(d, set) \
|
||
|
|
((void) (__FDS_BITS (set)[__FD_ELT (d)] |= __FD_MASK (d)))
|
||
|
|
#define __FD_CLR(d, set) \
|
||
|
|
((void) (__FDS_BITS (set)[__FD_ELT (d)] &= ~__FD_MASK (d)))
|
||
|
|
#define __FD_ISSET(d, set) \
|
||
|
|
((__FDS_BITS (set)[__FD_ELT (d)] & __FD_MASK (d)) != 0)
|