FreeBSD/Linux Kernel Cross Reference
sys/sys/_types.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31 #ifndef _SYS__TYPES_H_
32 #define _SYS__TYPES_H_
33
34 #include <sys/cdefs.h>
35
36 /*
37 * Basic types upon which most other types are built.
38 *
39 * Note: It would be nice to simply use the compiler-provided __FOO_TYPE__
40 * macros. However, in order to do so we have to check that those match the
41 * previous typedefs exactly (not just that they have the same size) since any
42 * change would be an ABI break. For example, changing `long` to `long long`
43 * results in different C++ name mangling.
44 */
45 typedef signed char __int8_t;
46 typedef unsigned char __uint8_t;
47 typedef short __int16_t;
48 typedef unsigned short __uint16_t;
49 typedef int __int32_t;
50 typedef unsigned int __uint32_t;
51 #if __SIZEOF_LONG__ == 8
52 typedef long __int64_t;
53 typedef unsigned long __uint64_t;
54 #elif __SIZEOF_LONG__ == 4
55 __extension__
56 typedef long long __int64_t;
57 __extension__
58 typedef unsigned long long __uint64_t;
59 #else
60 #error unsupported long size
61 #endif
62
63 typedef __int8_t __int_least8_t;
64 typedef __int16_t __int_least16_t;
65 typedef __int32_t __int_least32_t;
66 typedef __int64_t __int_least64_t;
67 typedef __int64_t __intmax_t;
68 typedef __uint8_t __uint_least8_t;
69 typedef __uint16_t __uint_least16_t;
70 typedef __uint32_t __uint_least32_t;
71 typedef __uint64_t __uint_least64_t;
72 typedef __uint64_t __uintmax_t;
73
74 #if __SIZEOF_POINTER__ == 8
75 typedef __int64_t __intptr_t;
76 typedef __int64_t __intfptr_t;
77 typedef __uint64_t __uintptr_t;
78 typedef __uint64_t __uintfptr_t;
79 typedef __uint64_t __vm_offset_t;
80 typedef __uint64_t __vm_size_t;
81 #elif __SIZEOF_POINTER__ == 4
82 typedef __int32_t __intptr_t;
83 typedef __int32_t __intfptr_t;
84 typedef __uint32_t __uintptr_t;
85 typedef __uint32_t __uintfptr_t;
86 typedef __uint32_t __vm_offset_t;
87 typedef __uint32_t __vm_size_t;
88 #else
89 #error unsupported pointer size
90 #endif
91
92 #if __SIZEOF_SIZE_T__ == 8
93 typedef __uint64_t __size_t; /* sizeof() */
94 typedef __int64_t __ssize_t; /* byte count or error */
95 #elif __SIZEOF_SIZE_T__ == 4
96 typedef __uint32_t __size_t; /* sizeof() */
97 typedef __int32_t __ssize_t; /* byte count or error */
98 #else
99 #error unsupported size_t size
100 #endif
101
102 #if __SIZEOF_PTRDIFF_T__ == 8
103 typedef __int64_t __ptrdiff_t; /* ptr1 - ptr2 */
104 #elif __SIZEOF_PTRDIFF_T__ == 4
105 typedef __int32_t __ptrdiff_t; /* ptr1 - ptr2 */
106 #else
107 #error unsupported ptrdiff_t size
108 #endif
109
110 /*
111 * Target-dependent type definitions.
112 */
113 #include <machine/_types.h>
114
115 /*
116 * Standard type definitions.
117 */
118 typedef __int32_t __blksize_t; /* file block size */
119 typedef __int64_t __blkcnt_t; /* file block count */
120 typedef __int32_t __clockid_t; /* clock_gettime()... */
121 typedef __uint32_t __fflags_t; /* file flags */
122 typedef __uint64_t __fsblkcnt_t;
123 typedef __uint64_t __fsfilcnt_t;
124 typedef __uint32_t __gid_t;
125 typedef __int64_t __id_t; /* can hold a gid_t, pid_t, or uid_t */
126 typedef __uint64_t __ino_t; /* inode number */
127 typedef long __key_t; /* IPC key (for Sys V IPC) */
128 typedef __int32_t __lwpid_t; /* Thread ID (a.k.a. LWP) */
129 typedef __uint16_t __mode_t; /* permissions */
130 typedef int __accmode_t; /* access permissions */
131 typedef int __nl_item;
132 typedef __uint64_t __nlink_t; /* link count */
133 typedef __int64_t __off_t; /* file offset */
134 typedef __int64_t __off64_t; /* file offset (alias) */
135 typedef __int32_t __pid_t; /* process [group] */
136 typedef __int64_t __sbintime_t;
137 typedef __int64_t __rlim_t; /* resource limit - intentionally */
138 /* signed, because of legacy code */
139 /* that uses -1 for RLIM_INFINITY */
140 typedef __uint8_t __sa_family_t;
141 typedef __uint32_t __socklen_t;
142 typedef long __suseconds_t; /* microseconds (signed) */
143 typedef struct __timer *__timer_t; /* timer_gettime()... */
144 typedef struct __mq *__mqd_t; /* mq_open()... */
145 typedef __uint32_t __uid_t;
146 typedef unsigned int __useconds_t; /* microseconds (unsigned) */
147 typedef int __cpuwhich_t; /* which parameter for cpuset. */
148 typedef int __cpulevel_t; /* level parameter for cpuset. */
149 typedef int __cpusetid_t; /* cpuset identifier. */
150 typedef __int64_t __daddr_t; /* bwrite(3), FIOBMAP2, etc */
151
152 /*
153 * Unusual type definitions.
154 */
155 /*
156 * rune_t is declared to be an ``int'' instead of the more natural
157 * ``unsigned long'' or ``long''. Two things are happening here. It is not
158 * unsigned so that EOF (-1) can be naturally assigned to it and used. Also,
159 * it looks like 10646 will be a 31 bit standard. This means that if your
160 * ints cannot hold 32 bits, you will be in trouble. The reason an int was
161 * chosen over a long is that the is*() and to*() routines take ints (says
162 * ANSI C), but they use __ct_rune_t instead of int.
163 *
164 * NOTE: rune_t is not covered by ANSI nor other standards, and should not
165 * be instantiated outside of lib/libc/locale. Use wchar_t. wint_t and
166 * rune_t must be the same type. Also, wint_t should be able to hold all
167 * members of the largest character set plus one extra value (WEOF), and
168 * must be at least 16 bits.
169 */
170 typedef int __ct_rune_t; /* arg type for ctype funcs */
171 typedef __ct_rune_t __rune_t; /* rune_t (see above) */
172 typedef __ct_rune_t __wint_t; /* wint_t (see above) */
173
174 /* Clang already provides these types as built-ins, but only in C++ mode. */
175 #if !defined(__clang__) || !defined(__cplusplus)
176 typedef __uint_least16_t __char16_t;
177 typedef __uint_least32_t __char32_t;
178 #endif
179 /* In C++11, char16_t and char32_t are built-in types. */
180 #if defined(__cplusplus) && __cplusplus >= 201103L
181 #define _CHAR16_T_DECLARED
182 #define _CHAR32_T_DECLARED
183 #endif
184
185 typedef struct {
186 long long __max_align1 __aligned(_Alignof(long long));
187 #ifndef _STANDALONE
188 long double __max_align2 __aligned(_Alignof(long double));
189 #endif
190 } __max_align_t;
191
192 typedef __uint64_t __dev_t; /* device number */
193
194 typedef __uint32_t __fixpt_t; /* fixed point number */
195
196 /*
197 * mbstate_t is an opaque object to keep conversion state during multibyte
198 * stream conversions.
199 */
200 typedef union {
201 char __mbstate8[128];
202 __int64_t _mbstateL; /* for alignment */
203 } __mbstate_t;
204
205 typedef __uintmax_t __rman_res_t;
206
207 /*
208 * Types for varargs. These are all provided by builtin types these
209 * days, so centralize their definition.
210 */
211 typedef __builtin_va_list __va_list; /* internally known to gcc */
212 #if !defined(__GNUC_VA_LIST) && !defined(__NO_GNUC_VA_LIST)
213 #define __GNUC_VA_LIST
214 typedef __va_list __gnuc_va_list; /* compatibility w/GNU headers*/
215 #endif
216
217 /*
218 * When the following macro is defined, the system uses 64-bit inode numbers.
219 * Programs can use this to avoid including <sys/param.h>, with its associated
220 * namespace pollution.
221 */
222 #define __INO64
223
224 #endif /* !_SYS__TYPES_H_ */
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