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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
.\" $FreeBSD$
.\"
.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>
/* Machine type dependent parameters. */
#include <machine/ansi.h>
#include <machine/types.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 u_int64_t u_quad_t; /* quads */
typedef int64_t quad_t;
typedef quad_t * qaddr_t;
typedef char * caddr_t; /* core address */
typedef int32_t daddr_t; /* disk address */
typedef u_int32_t dev_t; /* device number */
typedef u_int32_t fixpt_t; /* fixed point number */
typedef u_int32_t gid_t; /* group id */
typedef u_int32_t ino_t; /* inode number */
typedef long key_t; /* IPC key (for Sys V IPC) */
typedef u_int16_t mode_t; /* permissions */
typedef u_int16_t nlink_t; /* link count */
typedef _BSD_OFF_T_ off_t; /* file offset */
typedef _BSD_PID_T_ pid_t; /* process id */
typedef quad_t rlim_t; /* resource limit */
typedef int32_t segsz_t; /* segment size */
typedef int32_t swblk_t; /* swap offset */
typedef u_int32_t uid_t; /* user id */
#ifdef KERNEL
typedef int boolean_t;
typedef struct vm_page *vm_page_t;
#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/endian.h>
#ifdef _BSD_CLOCK_T_
typedef _BSD_CLOCK_T_ clock_t;
#undef _BSD_CLOCK_T_
#endif
#ifdef _BSD_CLOCKID_T_
typedef _BSD_CLOCKID_T_ clockid_t;
#undef _BSD_CLOCKID_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
#ifdef _BSD_TIMER_T_
typedef _BSD_TIMER_T_ timer_t;
#undef _BSD_TIMER_T_
#endif
#ifdef _BSD_UINT8_T_
typedef _BSD_UINT8_T_ uint8_t;
#undef _BSD_UINT8_T_
#endif
#ifdef _BSD_UINT16_T_
typedef _BSD_UINT16_T_ uint16_t;
#undef _BSD_UINT16_T_
#endif
#ifdef _BSD_UINT32_T_
typedef _BSD_UINT32_T_ uint32_t;
#undef _BSD_UINT32_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 1024
#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)))
/*
* These declarations belong elsewhere, but are repeated here and in
* <stdio.h> to give broken programs a better chance of working with
* 64-bit off_t's.
*/
#ifndef KERNEL
__BEGIN_DECLS
#ifndef _FTRUNCATE_DECLARED
#define _FTRUNCATE_DECLARED
int ftruncate __P((int, off_t));
#endif
#ifndef _LSEEK_DECLARED
#define _LSEEK_DECLARED
off_t lseek __P((int, off_t, int));
#endif
#ifndef _MMAP_DECLARED
#define _MMAP_DECLARED
void * mmap __P((void *, size_t, int, int, int, off_t));
#endif
#ifndef _TRUNCATE_DECLARED
#define _TRUNCATE_DECLARED
int truncate __P((const char *, off_t));
#endif
__END_DECLS
#endif /* !KERNEL */
#endif /* !_POSIX_SOURCE */
#endif /* !_SYS_TYPES_H_ */
.Ed
.Sh SEE ALSO
.Xr gdb 1 ,
.Xr lseek 2 ,
.Xr time 3 ,
.Xr fs 5
.Sh HISTORY
A
.Nm
file appeared in
.At v7 .
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