f19a4bf1c4
This patch include various fixes to NBSD includes. - unistd.h: Avoid different linkages on non-_NETBSD_SOURCE compilation; - stdlib.h: remove devname declaration. - sys/select.h: Add _MINIX specific flags. - limits.h: Add SYMLOOP_MAX and SYMLINK_MAX - time.h: Fix CLOCKS_PER_SEC and remove BSD's timer_t, as it confuses minix own specific timers. - utmp.h: Set Minix-specific paths and use Minix utmp format. - param.h: Do not set BSD4_4, as this mostly means sa_len in struct sock_addr. - arch/i386/include/param.h: include <machine/vmparam.h> to add PAGE_SIZE and related macros, defined round_page() and trunc_page() for minix compatibility. - dirent.h: remove DIRBLKSIZ and fix d_ino/d_fileno. - sys/dir.h: ADD from existing includes and edit include conditions. - sys/dirent.h: include <minix/dirent.h>, fix d_ino/d_fileno. - sys/fd_set.h: set default FD_SETSIZE at __MINIX_OPENMAX, as the default NetBSD value is too big and cause vfs to return an error. - sys/cdefs.h: Always include <minix/ansi.h> - minix/paths.h: Add Minix-specific paths. - minix/dirent.h: ADD, keep only "direct" and "flex"definitions. - minix/types.h: include <minix/ansi.h> - sys/Makefile: add sys/dirent.h and statfs.h (forgot!) - minix/Makefile: add minix/dirent.h nbsd_include/minix-port.patch updated accordingly.
109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/* $NetBSD: fd_set.h,v 1.2 2005/12/11 12:25:20 christos Exp $ */
|
|
|
|
/*-
|
|
* 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
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. 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.
|
|
*
|
|
* from: @(#)types.h 8.4 (Berkeley) 1/21/94
|
|
*/
|
|
|
|
#ifndef _SYS_FD_SET_H_
|
|
#define _SYS_FD_SET_H_
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/featuretest.h>
|
|
#include <sys/syslimits.h>
|
|
#include <machine/int_types.h>
|
|
|
|
/*
|
|
* Implementation dependent defines, hidden from user space. X/Open does not
|
|
* specify them.
|
|
*/
|
|
#define __NBBY 8 /* number of bits in a byte */
|
|
typedef __int32_t __fd_mask;
|
|
|
|
/* bits per mask */
|
|
#define __NFDBITS ((unsigned int)sizeof(__fd_mask) * __NBBY)
|
|
|
|
#define __howmany(x, y) (((x) + ((y) - 1)) / (y))
|
|
|
|
/*
|
|
* 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 __MINIX_OPEN_MAX
|
|
#endif
|
|
|
|
typedef struct fd_set {
|
|
__fd_mask fds_bits[__howmany(FD_SETSIZE, __NFDBITS)];
|
|
} fd_set;
|
|
|
|
#define FD_SET(n, p) \
|
|
((p)->fds_bits[(n)/__NFDBITS] |= (1 << ((n) % __NFDBITS)))
|
|
#define FD_CLR(n, p) \
|
|
((p)->fds_bits[(n)/__NFDBITS] &= ~(1 << ((n) % __NFDBITS)))
|
|
#define FD_ISSET(n, p) \
|
|
((p)->fds_bits[(n)/__NFDBITS] & (1 << ((n) % __NFDBITS)))
|
|
#if __GNUC_PREREQ__(2, 95)
|
|
#define FD_ZERO(p) (void)__builtin_memset((p), 0, sizeof(*(p)))
|
|
#else
|
|
#define FD_ZERO(p) do { \
|
|
fd_set *__fds = (p); \
|
|
unsigned int __i; \
|
|
for (__i = 0; __i < __howmany(FD_SETSIZE, __NFDBITS); __i++) \
|
|
__fds->fds_bits[__i] = 0; \
|
|
} while (/* CONSTCOND */ 0)
|
|
#endif /* GCC 2.95 */
|
|
|
|
/*
|
|
* Expose our internals if we are not required to hide them.
|
|
*/
|
|
#if defined(_NETBSD_SOURCE)
|
|
|
|
#define fd_mask __fd_mask
|
|
#define NFDBITS __NFDBITS
|
|
#ifndef howmany
|
|
#define howmany(a, b) __howmany(a, b)
|
|
#endif
|
|
|
|
#if __GNUC_PREREQ__(2, 95)
|
|
#define FD_COPY(f, t) (void)__builtin_memcpy((t), (f), sizeof(*(f)))
|
|
#else
|
|
#define FD_COPY(f, t) do { \
|
|
fd_set *__f = (f), *__t = (t); \
|
|
unsigned int __i; \
|
|
for (__i = 0; __i < __howmany(FD_SETSIZE, __NFDBITS); __i++) \
|
|
__t->fds_bits[__i] = __f->fds_bits[__i]; \
|
|
} while (/* CONSTCOND */ 0)
|
|
#endif /* GCC 2.95 */
|
|
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
#endif /* _SYS_FD_SET_H_ */
|