types.h revision 4a04e8db7f069cc2eb910470e630778f35ef3c44
1/*-
2 * Copyright (c) 1982, 1986, 1991, 1993, 1994
3 *	The Regents of the University of California.  All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)types.h	8.6 (Berkeley) 2/19/95
35 * $FreeBSD$
36 */
37
38#ifndef _SYS_TYPES_H_
39#define	_SYS_TYPES_H_
40
41#include <sys/cdefs.h>
42
43/* Machine type dependent parameters. */
44#include <machine/endian.h>
45#include <sys/_types.h>
46
47#include <sys/_pthreadtypes.h>
48
49#if __BSD_VISIBLE
50typedef	unsigned char	u_char;
51typedef	unsigned short	u_short;
52typedef	unsigned int	u_int;
53typedef	unsigned long	u_long;
54#ifndef _KERNEL
55typedef	unsigned short	ushort;		/* Sys V compatibility */
56typedef	unsigned int	uint;		/* Sys V compatibility */
57#endif
58#endif
59
60/*
61 * POSIX Extensions
62 */
63typedef	unsigned int	uint_t;
64
65/*
66 * XXX POSIX sized integrals that should appear only in <sys/stdint.h>.
67 */
68#include <sys/_stdint.h>
69
70typedef __uint8_t	u_int8_t;	/* unsigned integrals (deprecated) */
71typedef __uint16_t	u_int16_t;
72typedef __uint32_t	u_int32_t;
73typedef __uint64_t	u_int64_t;
74
75typedef	__uint64_t	u_quad_t;	/* quads (deprecated) */
76typedef	__int64_t	quad_t;
77typedef	quad_t *	qaddr_t;
78
79typedef	char *		caddr_t;	/* core address */
80typedef	const char *	c_caddr_t;	/* core address, pointer to const */
81
82#ifndef _BLKSIZE_T_DECLARED
83typedef	__blksize_t	blksize_t;
84#define	_BLKSIZE_T_DECLARED
85#endif
86
87typedef	__cpuwhich_t	cpuwhich_t;
88typedef	__cpulevel_t	cpulevel_t;
89typedef	__cpusetid_t	cpusetid_t;
90
91#ifndef _BLKCNT_T_DECLARED
92typedef	__blkcnt_t	blkcnt_t;
93#define	_BLKCNT_T_DECLARED
94#endif
95
96#ifndef _CLOCK_T_DECLARED
97typedef	__clock_t	clock_t;
98#define	_CLOCK_T_DECLARED
99#endif
100
101#ifndef _CLOCKID_T_DECLARED
102typedef	__clockid_t	clockid_t;
103#define	_CLOCKID_T_DECLARED
104#endif
105
106typedef	__critical_t	critical_t;	/* Critical section value */
107typedef	__int64_t	daddr_t;	/* disk address */
108
109#ifndef _DEV_T_DECLARED
110typedef	__dev_t		dev_t;		/* device number or struct cdev */
111#define	_DEV_T_DECLARED
112#endif
113
114#ifndef _FFLAGS_T_DECLARED
115typedef	__fflags_t	fflags_t;	/* file flags */
116#define	_FFLAGS_T_DECLARED
117#endif
118
119typedef	__fixpt_t	fixpt_t;	/* fixed point number */
120
121#ifndef _FSBLKCNT_T_DECLARED		/* for statvfs() */
122typedef	__fsblkcnt_t	fsblkcnt_t;
123typedef	__fsfilcnt_t	fsfilcnt_t;
124#define	_FSBLKCNT_T_DECLARED
125#endif
126
127#ifndef _GID_T_DECLARED
128typedef	__gid_t		gid_t;		/* group id */
129#define	_GID_T_DECLARED
130#endif
131
132#ifndef _IN_ADDR_T_DECLARED
133typedef	__uint32_t	in_addr_t;	/* base type for internet address */
134#define	_IN_ADDR_T_DECLARED
135#endif
136
137#ifndef _IN_PORT_T_DECLARED
138typedef	__uint16_t	in_port_t;
139#define	_IN_PORT_T_DECLARED
140#endif
141
142#ifndef _ID_T_DECLARED
143typedef	__id_t		id_t;		/* can hold a uid_t or pid_t */
144#define	_ID_T_DECLARED
145#endif
146
147#ifndef _INO_T_DECLARED
148typedef	__ino_t		ino_t;		/* inode number */
149#define	_INO_T_DECLARED
150#endif
151
152#ifndef _KEY_T_DECLARED
153typedef	__key_t		key_t;		/* IPC key (for Sys V IPC) */
154#define	_KEY_T_DECLARED
155#endif
156
157#ifndef _LWPID_T_DECLARED
158typedef	__lwpid_t	lwpid_t;	/* Thread ID (a.k.a. LWP) */
159#define	_LWPID_T_DECLARED
160#endif
161
162#ifndef _MODE_T_DECLARED
163typedef	__mode_t	mode_t;		/* permissions */
164#define	_MODE_T_DECLARED
165#endif
166
167#ifndef _ACCMODE_T_DECLARED
168typedef	__accmode_t	accmode_t;	/* access permissions */
169#define	_ACCMODE_T_DECLARED
170#endif
171
172#ifndef _NLINK_T_DECLARED
173typedef	__nlink_t	nlink_t;	/* link count */
174#define	_NLINK_T_DECLARED
175#endif
176
177#ifndef _OFF_T_DECLARED
178typedef	__off_t		off_t;		/* file offset */
179#define	_OFF_T_DECLARED
180#endif
181
182#ifndef _PID_T_DECLARED
183typedef	__pid_t		pid_t;		/* process id */
184#define	_PID_T_DECLARED
185#endif
186
187typedef	__register_t	register_t;
188
189#ifndef _RLIM_T_DECLARED
190typedef	__rlim_t	rlim_t;		/* resource limit */
191#define	_RLIM_T_DECLARED
192#endif
193
194typedef	__int64_t	sbintime_t;
195
196typedef	__segsz_t	segsz_t;	/* segment size (in pages) */
197
198#ifndef _SIZE_T_DECLARED
199typedef	__size_t	size_t;
200#define	_SIZE_T_DECLARED
201#endif
202
203#ifndef _SSIZE_T_DECLARED
204typedef	__ssize_t	ssize_t;
205#define	_SSIZE_T_DECLARED
206#endif
207
208#ifndef _SUSECONDS_T_DECLARED
209typedef	__suseconds_t	suseconds_t;	/* microseconds (signed) */
210#define	_SUSECONDS_T_DECLARED
211#endif
212
213#ifndef _TIME_T_DECLARED
214typedef	__time_t	time_t;
215#define	_TIME_T_DECLARED
216#endif
217
218#ifndef _TIMER_T_DECLARED
219typedef	__timer_t	timer_t;
220#define	_TIMER_T_DECLARED
221#endif
222
223#ifndef _MQD_T_DECLARED
224typedef	__mqd_t	mqd_t;
225#define	_MQD_T_DECLARED
226#endif
227
228typedef	__u_register_t	u_register_t;
229
230#ifndef _UID_T_DECLARED
231typedef	__uid_t		uid_t;		/* user id */
232#define	_UID_T_DECLARED
233#endif
234
235#ifndef _USECONDS_T_DECLARED
236typedef	__useconds_t	useconds_t;	/* microseconds (unsigned) */
237#define	_USECONDS_T_DECLARED
238#endif
239
240#ifndef _CAP_IOCTL_T_DECLARED
241#define	_CAP_IOCTL_T_DECLARED
242typedef	unsigned long	cap_ioctl_t;
243#endif
244
245#ifndef _CAP_RIGHTS_T_DECLARED
246#define	_CAP_RIGHTS_T_DECLARED
247struct cap_rights;
248
249typedef	struct cap_rights	cap_rights_t;
250#endif
251
252typedef	__vm_offset_t	vm_offset_t;
253typedef	__vm_ooffset_t	vm_ooffset_t;
254typedef	__vm_paddr_t	vm_paddr_t;
255typedef	__vm_pindex_t	vm_pindex_t;
256typedef	__vm_size_t	vm_size_t;
257
258typedef __rman_res_t    rman_res_t;
259
260#ifdef _KERNEL
261typedef	int		boolean_t;
262typedef	struct device	*device_t;
263typedef	__intfptr_t	intfptr_t;
264
265/*
266 * XXX this is fixed width for historical reasons.  It should have had type
267 * __int_fast32_t.  Fixed-width types should not be used unless binary
268 * compatibility is essential.  Least-width types should be used even less
269 * since they provide smaller benefits.
270 *
271 * XXX should be MD.
272 *
273 * XXX this is bogus in -current, but still used for spl*().
274 */
275typedef	__uint32_t	intrmask_t;	/* Interrupt mask (spl, xxx_imask...) */
276
277typedef	__uintfptr_t	uintfptr_t;
278typedef	__uint64_t	uoff_t;
279typedef	char		vm_memattr_t;	/* memory attribute codes */
280typedef	struct vm_page	*vm_page_t;
281
282#if !defined(__bool_true_false_are_defined) && !defined(__cplusplus)
283#define	__bool_true_false_are_defined	1
284#define	false	0
285#define	true	1
286#if __STDC_VERSION__ < 199901L && __GNUC__ < 3 && !defined(__INTEL_COMPILER)
287typedef	int	_Bool;
288#endif
289typedef	_Bool	bool;
290#endif /* !__bool_true_false_are_defined && !__cplusplus */
291
292#define offsetof(type, field) __offsetof(type, field)
293
294#endif /* !_KERNEL */
295
296/*
297 * The following are all things that really shouldn't exist in this header,
298 * since its purpose is to provide typedefs, not miscellaneous doodads.
299 */
300
301#ifdef __POPCNT__
302#define	__bitcount64(x)	__builtin_popcountll((__uint64_t)(x))
303#define	__bitcount32(x)	__builtin_popcount((__uint32_t)(x))
304#define	__bitcount16(x)	__builtin_popcount((__uint16_t)(x))
305#define	__bitcountl(x)	__builtin_popcountl((unsigned long)(x))
306#define	__bitcount(x)	__builtin_popcount((unsigned int)(x))
307#else
308/*
309 * Population count algorithm using SWAR approach
310 * - "SIMD Within A Register".
311 */
312static __inline __uint16_t
313__bitcount16(__uint16_t _x)
314{
315
316	_x = (_x & 0x5555) + ((_x & 0xaaaa) >> 1);
317	_x = (_x & 0x3333) + ((_x & 0xcccc) >> 2);
318	_x = (_x + (_x >> 4)) & 0x0f0f;
319	_x = (_x + (_x >> 8)) & 0x00ff;
320	return (_x);
321}
322
323static __inline __uint32_t
324__bitcount32(__uint32_t _x)
325{
326
327	_x = (_x & 0x55555555) + ((_x & 0xaaaaaaaa) >> 1);
328	_x = (_x & 0x33333333) + ((_x & 0xcccccccc) >> 2);
329	_x = (_x + (_x >> 4)) & 0x0f0f0f0f;
330	_x = (_x + (_x >> 8));
331	_x = (_x + (_x >> 16)) & 0x000000ff;
332	return (_x);
333}
334
335#ifdef __LP64__
336static __inline __uint64_t
337__bitcount64(__uint64_t _x)
338{
339
340	_x = (_x & 0x5555555555555555) + ((_x & 0xaaaaaaaaaaaaaaaa) >> 1);
341	_x = (_x & 0x3333333333333333) + ((_x & 0xcccccccccccccccc) >> 2);
342	_x = (_x + (_x >> 4)) & 0x0f0f0f0f0f0f0f0f;
343	_x = (_x + (_x >> 8));
344	_x = (_x + (_x >> 16));
345	_x = (_x + (_x >> 32)) & 0x000000ff;
346	return (_x);
347}
348
349#define	__bitcountl(x)	__bitcount64((unsigned long)(x))
350#else
351static __inline __uint64_t
352__bitcount64(__uint64_t _x)
353{
354
355	return (__bitcount32(_x >> 32) + __bitcount32(_x));
356}
357
358#define	__bitcountl(x)	__bitcount32((unsigned long)(x))
359#endif
360#define	__bitcount(x)	__bitcount32((unsigned int)(x))
361#endif
362
363#if __BSD_VISIBLE
364
365#include <sys/select.h>
366
367/*
368 * minor() gives a cookie instead of an index since we don't want to
369 * change the meanings of bits 0-15 or waste time and space shifting
370 * bits 16-31 for devices that don't use them.
371 */
372#define	major(x)	((int)(((u_int)(x) >> 8)&0xff))	/* major number */
373#define	minor(x)	((int)((x)&0xffff00ff))		/* minor number */
374#define	makedev(x,y)	((dev_t)(((x) << 8) | (y)))	/* create dev_t */
375
376/*
377 * These declarations belong elsewhere, but are repeated here and in
378 * <stdio.h> to give broken programs a better chance of working with
379 * 64-bit off_t's.
380 */
381#ifndef _KERNEL
382__BEGIN_DECLS
383#ifndef _FTRUNCATE_DECLARED
384#define	_FTRUNCATE_DECLARED
385int	 ftruncate(int, off_t);
386#endif
387#ifndef _LSEEK_DECLARED
388#define	_LSEEK_DECLARED
389off_t	 lseek(int, off_t, int);
390#endif
391#ifndef _MMAP_DECLARED
392#define	_MMAP_DECLARED
393void *	 mmap(void *, size_t, int, int, int, off_t);
394#endif
395#ifndef _TRUNCATE_DECLARED
396#define	_TRUNCATE_DECLARED
397int	 truncate(const char *, off_t);
398#endif
399__END_DECLS
400#endif /* !_KERNEL */
401
402#endif /* __BSD_VISIBLE */
403
404#endif /* !_SYS_TYPES_H_ */
405