GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/kdump/../../sys/sys/select.h Lines: 1 1 100.0 %
Date: 2017-11-13 Branches: 0 0 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: select.h,v 1.17 2016/09/12 19:41:20 guenther Exp $	*/
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/*-
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 * Copyright (c) 1992, 1993
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *	@(#)select.h	8.2 (Berkeley) 1/4/94
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 */
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#ifndef _SYS_SELECT_H_
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#define	_SYS_SELECT_H_
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#include <sys/types.h>
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#ifndef _TIMEVAL_DECLARED
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#define _TIMEVAL_DECLARED
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struct timeval {
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	time_t		tv_sec;		/* seconds */
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	suseconds_t	tv_usec;	/* and microseconds */
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};
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#endif
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#ifndef _TIMESPEC_DECLARED
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#define _TIMESPEC_DECLARED
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struct timespec {
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	time_t	tv_sec;		/* seconds */
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	long	tv_nsec;	/* and nanoseconds */
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};
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#endif
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/*
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 * Select uses bit masks of file descriptors in longs.  These macros
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 * manipulate such bit fields (the filesystem macros use chars).
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 * FD_SETSIZE may be defined by the user, but the default here should
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 * be enough for most uses.
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 */
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#ifndef	FD_SETSIZE
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#define	FD_SETSIZE	1024
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#endif
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/*
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 * We don't want to pollute the namespace with select(2) internals.
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 * Non-underscore versions are exposed later #if __BSD_VISIBLE
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 */
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#define	__NBBY	8				/* number of bits in a byte */
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typedef uint32_t __fd_mask;
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#define __NFDBITS ((unsigned)(sizeof(__fd_mask) * __NBBY)) /* bits per mask */
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#define	__howmany(x, y)	(((x) + ((y) - 1)) / (y))
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typedef	struct fd_set {
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	__fd_mask fds_bits[__howmany(FD_SETSIZE, __NFDBITS)];
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} fd_set;
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static __inline void
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__fd_set(int fd, fd_set *p)
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{
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	p->fds_bits[fd / __NFDBITS] |= (1U << (fd % __NFDBITS));
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}
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#define FD_SET(n, p)	__fd_set((n), (p))
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static __inline void
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__fd_clr(int fd, fd_set *p)
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{
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	p->fds_bits[fd / __NFDBITS] &= ~(1U << (fd % __NFDBITS));
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}
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#define FD_CLR(n, p)	__fd_clr((n), (p))
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static __inline int
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__fd_isset(int fd, const fd_set *p)
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{
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	return (p->fds_bits[fd / __NFDBITS] & (1U << (fd % __NFDBITS)));
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}
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#define FD_ISSET(n, p)	__fd_isset((n), (p))
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#if __BSD_VISIBLE
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#define	FD_COPY(f, t)	(void)(*(t) = *(f))
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#endif
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#define	FD_ZERO(p) do {					\
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	fd_set *_p = (p);				\
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	__size_t _n = __howmany(FD_SETSIZE, __NFDBITS);	\
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							\
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	while (_n > 0)					\
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		_p->fds_bits[--_n] = 0;			\
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} while (0)
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#if __BSD_VISIBLE
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#define	NBBY	__NBBY
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#define fd_mask	__fd_mask
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#define NFDBITS	__NFDBITS
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#ifndef howmany
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#define howmany(x, y)	__howmany(x, y)
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#endif
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#endif /* __BSD_VISIBLE */
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#ifndef _KERNEL
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#ifndef _SIGSET_T_DEFINED_
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#define _SIGSET_T_DEFINED_
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typedef unsigned int sigset_t;
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#endif
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#ifndef _SELECT_DEFINED_
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#define _SELECT_DEFINED_
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__BEGIN_DECLS
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int	select(int, fd_set * __restrict, fd_set * __restrict,
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	    fd_set * __restrict, struct timeval * __restrict);
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int	pselect(int, fd_set * __restrict, fd_set * __restrict,
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	    fd_set * __restrict, const struct timespec * __restrict,
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	    const sigset_t * __restrict);
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__END_DECLS
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#endif
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#endif /* !_KERNEL */
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#endif /* !_SYS_SELECT_H_ */