_types.h revision 309258 
1/*-
2 * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/10/sys/sys/_types.h 309258 2016-11-28 18:36:37Z jhb $
27 */
28
29#ifndef _SYS__TYPES_H_
30#define _SYS__TYPES_H_
31
32#include <sys/cdefs.h>
33#include <machine/_types.h>
34
35/*
36 * Standard type definitions.
37 */
38typedef	__uint32_t	__blksize_t;	/* file block size */
39typedef	__int64_t	__blkcnt_t;	/* file block count */
40typedef	__int32_t	__clockid_t;	/* clock_gettime()... */
41typedef	__uint32_t	__fflags_t;	/* file flags */
42typedef	__uint64_t	__fsblkcnt_t;
43typedef	__uint64_t	__fsfilcnt_t;
44typedef	__uint32_t	__gid_t;
45typedef	__int64_t	__id_t;		/* can hold a gid_t, pid_t, or uid_t */
46typedef	__uint32_t	__ino_t;	/* inode number */
47typedef	long		__key_t;	/* IPC key (for Sys V IPC) */
48typedef	__int32_t	__lwpid_t;	/* Thread ID (a.k.a. LWP) */
49typedef	__uint16_t	__mode_t;	/* permissions */
50typedef	int		__accmode_t;	/* access permissions */
51typedef	int		__nl_item;
52typedef	__uint16_t	__nlink_t;	/* link count */
53typedef	__int64_t	__off_t;	/* file offset */
54typedef	__int32_t	__pid_t;	/* process [group] */
55typedef	__int64_t	__rlim_t;	/* resource limit - intentionally */
56					/* signed, because of legacy code */
57					/* that uses -1 for RLIM_INFINITY */
58typedef	__uint8_t	__sa_family_t;
59typedef	__uint32_t	__socklen_t;
60typedef	long		__suseconds_t;	/* microseconds (signed) */
61typedef	struct __timer	*__timer_t;	/* timer_gettime()... */
62typedef	struct __mq	*__mqd_t;	/* mq_open()... */
63typedef	__uint32_t	__uid_t;
64typedef	unsigned int	__useconds_t;	/* microseconds (unsigned) */
65typedef	int		__cpuwhich_t;	/* which parameter for cpuset. */
66typedef	int		__cpulevel_t;	/* level parameter for cpuset. */
67typedef int		__cpusetid_t;	/* cpuset identifier. */
68
69/*
70 * Unusual type definitions.
71 */
72/*
73 * rune_t is declared to be an ``int'' instead of the more natural
74 * ``unsigned long'' or ``long''.  Two things are happening here.  It is not
75 * unsigned so that EOF (-1) can be naturally assigned to it and used.  Also,
76 * it looks like 10646 will be a 31 bit standard.  This means that if your
77 * ints cannot hold 32 bits, you will be in trouble.  The reason an int was
78 * chosen over a long is that the is*() and to*() routines take ints (says
79 * ANSI C), but they use __ct_rune_t instead of int.
80 *
81 * NOTE: rune_t is not covered by ANSI nor other standards, and should not
82 * be instantiated outside of lib/libc/locale.  Use wchar_t.  wint_t and
83 * rune_t must be the same type.  Also, wint_t should be able to hold all
84 * members of the largest character set plus one extra value (WEOF), and
85 * must be at least 16 bits.
86 */
87typedef	int		__ct_rune_t;	/* arg type for ctype funcs */
88typedef	__ct_rune_t	__rune_t;	/* rune_t (see above) */
89typedef	__ct_rune_t	__wint_t;	/* wint_t (see above) */
90
91/* Clang already provides these types as built-ins, but only in C++ mode. */
92#if !defined(__clang__) || !defined(__cplusplus)
93typedef	__uint_least16_t __char16_t;
94typedef	__uint_least32_t __char32_t;
95#endif
96/* In C++11, char16_t and char32_t are built-in types. */
97#if defined(__cplusplus) && __cplusplus >= 201103L
98#define	_CHAR16_T_DECLARED
99#define	_CHAR32_T_DECLARED
100#endif
101
102typedef struct {
103	long long __max_align1 __aligned(_Alignof(long long));
104	long double __max_align2 __aligned(_Alignof(long double));
105} __max_align_t;
106
107typedef	__uint32_t	__dev_t;	/* device number */
108
109typedef	__uint32_t	__fixpt_t;	/* fixed point number */
110
111/*
112 * mbstate_t is an opaque object to keep conversion state during multibyte
113 * stream conversions.
114 */
115typedef union {
116	char		__mbstate8[128];
117	__int64_t	_mbstateL;	/* for alignment */
118} __mbstate_t;
119
120#endif /* !_SYS__TYPES_H_ */
121