097d42f425
locations.
187 lines
5.6 KiB
Groff
187 lines
5.6 KiB
Groff
.\" Copyright (c) 1980, 1991, 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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. 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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.\" @(#)types.5 8.1 (Berkeley) 6/5/93
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.\"
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.Dd June 5, 1993
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.Dt TYPES 5
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.Os BSD 4
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.Sh NAME
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.Nm types
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.Nd system data types
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.Sh SYNOPSIS
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.Fd #include <sys/types.h>
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.Sh DESCRIPTION
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The file
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.Pa sys/types.h
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contains the defined data types used in the kernel (most are
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used through out the system).
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.Bd -literal
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#ifndef _SYS_TYPES_H_
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#define _SYS_TYPES_H_
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#include <sys/cdefs.h>
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#include <machine/ansi.h>
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/* Machine type dependent parameters. */
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#include <machine/endian.h>
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#ifndef _POSIX_SOURCE
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typedef unsigned char u_char;
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typedef unsigned short u_short;
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typedef unsigned int u_int;
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typedef unsigned long u_long;
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typedef unsigned short ushort; /* Sys V compatibility */
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typedef unsigned int uint; /* Sys V compatibility */
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#endif
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typedef unsigned long long u_quad_t; /* quads */
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typedef long long quad_t;
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typedef quad_t * qaddr_t;
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typedef char * caddr_t; /* core address */
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typedef long daddr_t; /* disk address */
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typedef unsigned long dev_t; /* device number */
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typedef unsigned long fixpt_t; /* fixed point number */
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typedef unsigned long gid_t; /* group id */
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typedef unsigned long ino_t; /* inode number */
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typedef unsigned short mode_t; /* permissions */
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typedef unsigned short nlink_t; /* link count */
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typedef _BSD_OFF_T_ off_t; /* file offset */
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typedef _BSD_PID_T_ pid_t; /* process id */
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typedef long segsz_t; /* segment size */
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typedef long swblk_t; /* swap offset */
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typedef unsigned long uid_t; /* user id */
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/*
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* This belongs in unistd.h, but is placed here to ensure that programs
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* casting the second parameter of lseek to off_t will get the correct
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* version of lseek.
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*/
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#ifndef KERNEL
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__BEGIN_DECLS
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off_t lseek __P((int, off_t, int));
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__END_DECLS
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#endif
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#ifndef _POSIX_SOURCE
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/*
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* minor() gives a cookie instead of an index since we don't want to
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* change the meanings of bits 0-15 or waste time and space shifting
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* bits 16-31 for devices that don't use them.
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*/
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#define major(x) ((int)(((u_int)(x) >> 8)&0xff)) /* major number */
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#define minor(x) ((int)((x)&0xffff00ff)) /* minor number */
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#define makedev(x,y) ((dev_t)(((x)<<8) | (y))) /* create dev_t */
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#endif
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#include <machine/types.h>
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#ifdef _BSD_CLOCK_T_
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typedef _BSD_CLOCK_T_ clock_t;
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#undef _BSD_CLOCK_T_
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#endif
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#ifdef _BSD_SIZE_T_
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typedef _BSD_SIZE_T_ size_t;
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#undef _BSD_SIZE_T_
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#endif
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#ifdef _BSD_SSIZE_T_
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typedef _BSD_SSIZE_T_ ssize_t;
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#undef _BSD_SSIZE_T_
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#endif
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#ifdef _BSD_TIME_T_
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typedef _BSD_TIME_T_ time_t;
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#undef _BSD_TIME_T_
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#endif
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#ifndef _POSIX_SOURCE
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#define NBBY 8 /* number of bits in a byte */
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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 256
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#endif
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typedef long fd_mask;
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#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
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#ifndef howmany
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#define howmany(x, y) (((x)+((y)-1))/(y))
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#endif
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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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#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
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#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
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#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
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#define FD_COPY(f, t) bcopy(f, t, sizeof(*(f)))
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#define FD_ZERO(p) bzero(p, sizeof(*(p)))
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#if defined(__STDC__) && defined(KERNEL)
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/*
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* Forward structure declarations for function prototypes. We include the
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* common structures that cross subsystem boundaries here; others are mostly
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* used in the same place that the structure is defined.
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*/
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struct proc;
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struct pgrp;
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struct ucred;
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struct rusage;
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struct file;
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struct buf;
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struct tty;
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struct uio;
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#endif
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#endif /* !_POSIX_SOURCE */
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#endif /* !_SYS_TYPES_H_ */
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.Ed
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.Sh SEE ALSO
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.Xr fs 5 ,
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.Xr time 3 ,
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.Xr lseek 2 ,
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.Xr gdb 1
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.Sh HISTORY
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A
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.Nm
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file appeared in
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.At v7 .
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