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