select.h revision 199767f8919635c4928607450d9e0abb932109ce
/*-
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _SYS_SELECT_H_
#define _SYS_SELECT_H_
#include <sys/timespec.h>
typedef unsigned long __fd_mask;
#if __BSD_VISIBLE
#endif
#ifndef _SIGSET_T_DECLARED
#define _SIGSET_T_DECLARED
typedef __sigset_t sigset_t;
#endif
/*
* Select uses bit masks of file descriptors in longs. These macros
* manipulate such bit fields (the filesystem macros use chars).
* FD_SETSIZE may be defined by the user, but the default here should
* be enough for most uses.
*/
#ifndef FD_SETSIZE
#define FD_SETSIZE 1024
#endif
#if __BSD_VISIBLE
#endif
#ifndef _howmany
#define _howmany(x, y) (((x) + ((y) - 1)) / (y))
#endif
typedef struct fd_set {
} fd_set;
#if __BSD_VISIBLE
#define fds_bits __fds_bits
#endif
#if __BSD_VISIBLE
#define FD_COPY(f, t) (void)(*(t) = *(f))
#endif
#define FD_ZERO(p) do { \
\
_p = (p); \
while (_n > 0) \
} while (0)
#ifndef _KERNEL
#ifndef _SELECT_DECLARED
#define _SELECT_DECLARED
/* XXX missing restrict type-qualifier */
#endif
#endif /* !_KERNEL */
#endif /* _SYS_SELECT_H_ */