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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2014 Garrett D'Amore <garrett@damore.org>
*
* Copyright 2013 Nexenta Systems, Inc. All rights reserved.
*
* Copyright 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#ifndef _SYS_SELECT_H
#define _SYS_SELECT_H
#include <sys/feature_tests.h>
#if !defined(_KERNEL) && !defined(_FAKE_KERNEL)
#if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
#include <sys/time_impl.h>
#endif
#include <sys/time.h>
#endif /* !_KERNEL */
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
/*
* The sigset_t type is defined in <sys/signal.h> and duplicated
* in <sys/ucontext.h> as a result of XPG4v2 requirements. XPG6
* now allows the visibility of signal.h in this header, however
* an order of inclusion problem occurs as a result of inclusion
* of <sys/select.h> in <signal.h> under certain conditions.
* Rather than include <sys/signal.h> here, we've duplicated
* the sigset_t type instead. This type is required for the XPG6
* introduced pselect() function also declared in this header.
*/
#ifndef _SIGSET_T
#define _SIGSET_T
typedef struct { /* signal set type */
unsigned int __sigbits[4];
} sigset_t;
#endif /* _SIGSET_T */
#endif /* #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
/*
* Select uses bit masks of file descriptors in longs.
* These macros manipulate such bit fields.
* FD_SETSIZE may be defined by the user, but the default here
* should be >= RLIM_FD_MAX.
*/
#ifndef FD_SETSIZE
#define FD_SETSIZE 65536
#endif /* FD_SETSIZE */
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
typedef long fd_mask;
#endif
typedef long fds_mask;
/*
* The value of _NBBY needs to be consistant with the value
* of NBBY in <sys/param.h>.
*/
#define _NBBY 8
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
#ifndef NBBY /* number of bits per byte */
#define NBBY _NBBY
#endif
#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
#define NFDBITS (sizeof (fd_mask) * NBBY) /* bits per mask */
#endif
#define FD_NFDBITS (sizeof (fds_mask) * _NBBY) /* bits per mask */
#define __howmany(__x, __y) (((__x)+((__y)-1))/(__y))
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
#ifndef howmany
#define howmany(x, y) (((x)+((y)-1))/(y))
#endif
#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */
#if !defined(_XPG4_2) || defined(__EXTENSIONS__)
typedef struct fd_set {
#else
typedef struct __fd_set {
#endif
long fds_bits[__howmany(FD_SETSIZE, FD_NFDBITS)];
} fd_set;
#define FD_SET(__n, __p) ((__p)->fds_bits[(__n)/FD_NFDBITS] |= \
(1ul << ((__n) % FD_NFDBITS)))
#define FD_CLR(__n, __p) ((__p)->fds_bits[(__n)/FD_NFDBITS] &= \
~(1ul << ((__n) % FD_NFDBITS)))
#define FD_ISSET(__n, __p) (((__p)->fds_bits[(__n)/FD_NFDBITS] & \
(1ul << ((__n) % FD_NFDBITS))) != 0l)
#if defined(_KERNEL) || defined(_FAKE_KERNEL)
#define FD_ZERO(p) bzero((p), sizeof (*(p)))
#else
#define FD_ZERO(__p) (void) memset((__p), 0, sizeof (*(__p)))
#endif /* _KERNEL */
#if !defined(_KERNEL) && !defined(_FAKE_KERNEL)
extern int select(int, fd_set *_RESTRICT_KYWD, fd_set *_RESTRICT_KYWD,
fd_set *_RESTRICT_KYWD, struct timeval *_RESTRICT_KYWD);
#if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
extern int pselect(int, fd_set *_RESTRICT_KYWD, fd_set *_RESTRICT_KYWD,
fd_set *_RESTRICT_KYWD, const struct timespec *_RESTRICT_KYWD,
const sigset_t *_RESTRICT_KYWD);
#endif
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SELECT_H */
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