The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/types.h

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    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: releng/10.2/sys/sys/types.h 281538 2015-04-14 20:05:26Z jhb $
   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
   50 typedef unsigned char   u_char;
   51 typedef unsigned short  u_short;
   52 typedef unsigned int    u_int;
   53 typedef unsigned long   u_long;
   54 #ifndef _KERNEL
   55 typedef unsigned short  ushort;         /* Sys V compatibility */
   56 typedef unsigned int    uint;           /* Sys V compatibility */
   57 #endif
   58 #endif
   59 
   60 /*
   61  * XXX POSIX sized integrals that should appear only in <sys/stdint.h>.
   62  */
   63 #include <sys/_stdint.h>
   64 
   65 typedef __uint8_t       u_int8_t;       /* unsigned integrals (deprecated) */
   66 typedef __uint16_t      u_int16_t;
   67 typedef __uint32_t      u_int32_t;
   68 typedef __uint64_t      u_int64_t;
   69 
   70 typedef __uint64_t      u_quad_t;       /* quads (deprecated) */
   71 typedef __int64_t       quad_t;
   72 typedef quad_t *        qaddr_t;
   73 
   74 typedef char *          caddr_t;        /* core address */
   75 typedef const char *    c_caddr_t;      /* core address, pointer to const */
   76 
   77 #ifndef _BLKSIZE_T_DECLARED
   78 typedef __blksize_t     blksize_t;
   79 #define _BLKSIZE_T_DECLARED
   80 #endif
   81 
   82 typedef __cpuwhich_t    cpuwhich_t;
   83 typedef __cpulevel_t    cpulevel_t;
   84 typedef __cpusetid_t    cpusetid_t;
   85 
   86 #ifndef _BLKCNT_T_DECLARED
   87 typedef __blkcnt_t      blkcnt_t;
   88 #define _BLKCNT_T_DECLARED
   89 #endif
   90 
   91 #ifndef _CLOCK_T_DECLARED
   92 typedef __clock_t       clock_t;
   93 #define _CLOCK_T_DECLARED
   94 #endif
   95 
   96 #ifndef _CLOCKID_T_DECLARED
   97 typedef __clockid_t     clockid_t;
   98 #define _CLOCKID_T_DECLARED
   99 #endif
  100 
  101 typedef __critical_t    critical_t;     /* Critical section value */
  102 typedef __int64_t       daddr_t;        /* disk address */
  103 
  104 #ifndef _DEV_T_DECLARED
  105 typedef __dev_t         dev_t;          /* device number or struct cdev */
  106 #define _DEV_T_DECLARED
  107 #endif
  108 
  109 #ifndef _FFLAGS_T_DECLARED
  110 typedef __fflags_t      fflags_t;       /* file flags */
  111 #define _FFLAGS_T_DECLARED
  112 #endif
  113 
  114 typedef __fixpt_t       fixpt_t;        /* fixed point number */
  115 
  116 #ifndef _FSBLKCNT_T_DECLARED            /* for statvfs() */
  117 typedef __fsblkcnt_t    fsblkcnt_t;
  118 typedef __fsfilcnt_t    fsfilcnt_t;
  119 #define _FSBLKCNT_T_DECLARED
  120 #endif
  121 
  122 #ifndef _GID_T_DECLARED
  123 typedef __gid_t         gid_t;          /* group id */
  124 #define _GID_T_DECLARED
  125 #endif
  126 
  127 #ifndef _IN_ADDR_T_DECLARED
  128 typedef __uint32_t      in_addr_t;      /* base type for internet address */
  129 #define _IN_ADDR_T_DECLARED
  130 #endif
  131 
  132 #ifndef _IN_PORT_T_DECLARED
  133 typedef __uint16_t      in_port_t;
  134 #define _IN_PORT_T_DECLARED
  135 #endif
  136 
  137 #ifndef _ID_T_DECLARED
  138 typedef __id_t          id_t;           /* can hold a uid_t or pid_t */
  139 #define _ID_T_DECLARED
  140 #endif
  141 
  142 #ifndef _INO_T_DECLARED
  143 typedef __ino_t         ino_t;          /* inode number */
  144 #define _INO_T_DECLARED
  145 #endif
  146 
  147 #ifndef _KEY_T_DECLARED
  148 typedef __key_t         key_t;          /* IPC key (for Sys V IPC) */
  149 #define _KEY_T_DECLARED
  150 #endif
  151 
  152 #ifndef _LWPID_T_DECLARED
  153 typedef __lwpid_t       lwpid_t;        /* Thread ID (a.k.a. LWP) */
  154 #define _LWPID_T_DECLARED
  155 #endif
  156 
  157 #ifndef _MODE_T_DECLARED
  158 typedef __mode_t        mode_t;         /* permissions */
  159 #define _MODE_T_DECLARED
  160 #endif
  161 
  162 #ifndef _ACCMODE_T_DECLARED
  163 typedef __accmode_t     accmode_t;      /* access permissions */
  164 #define _ACCMODE_T_DECLARED
  165 #endif
  166 
  167 #ifndef _NLINK_T_DECLARED
  168 typedef __nlink_t       nlink_t;        /* link count */
  169 #define _NLINK_T_DECLARED
  170 #endif
  171 
  172 #ifndef _OFF_T_DECLARED
  173 typedef __off_t         off_t;          /* file offset */
  174 #define _OFF_T_DECLARED
  175 #endif
  176 
  177 #ifndef _PID_T_DECLARED
  178 typedef __pid_t         pid_t;          /* process id */
  179 #define _PID_T_DECLARED
  180 #endif
  181 
  182 typedef __register_t    register_t;
  183 
  184 #ifndef _RLIM_T_DECLARED
  185 typedef __rlim_t        rlim_t;         /* resource limit */
  186 #define _RLIM_T_DECLARED
  187 #endif
  188 
  189 typedef __int64_t       sbintime_t;
  190 
  191 typedef __segsz_t       segsz_t;        /* segment size (in pages) */
  192 
  193 #ifndef _SIZE_T_DECLARED
  194 typedef __size_t        size_t;
  195 #define _SIZE_T_DECLARED
  196 #endif
  197 
  198 #ifndef _SSIZE_T_DECLARED
  199 typedef __ssize_t       ssize_t;
  200 #define _SSIZE_T_DECLARED
  201 #endif
  202 
  203 #ifndef _SUSECONDS_T_DECLARED
  204 typedef __suseconds_t   suseconds_t;    /* microseconds (signed) */
  205 #define _SUSECONDS_T_DECLARED
  206 #endif
  207 
  208 #ifndef _TIME_T_DECLARED
  209 typedef __time_t        time_t;
  210 #define _TIME_T_DECLARED
  211 #endif
  212 
  213 #ifndef _TIMER_T_DECLARED
  214 typedef __timer_t       timer_t;
  215 #define _TIMER_T_DECLARED
  216 #endif
  217 
  218 #ifndef _MQD_T_DECLARED
  219 typedef __mqd_t mqd_t;
  220 #define _MQD_T_DECLARED
  221 #endif
  222 
  223 typedef __u_register_t  u_register_t;
  224 
  225 #ifndef _UID_T_DECLARED
  226 typedef __uid_t         uid_t;          /* user id */
  227 #define _UID_T_DECLARED
  228 #endif
  229 
  230 #ifndef _USECONDS_T_DECLARED
  231 typedef __useconds_t    useconds_t;     /* microseconds (unsigned) */
  232 #define _USECONDS_T_DECLARED
  233 #endif
  234 
  235 #ifndef _CAP_RIGHTS_T_DECLARED
  236 #define _CAP_RIGHTS_T_DECLARED
  237 struct cap_rights;
  238 
  239 typedef struct cap_rights       cap_rights_t;
  240 #endif
  241 
  242 typedef __vm_offset_t   vm_offset_t;
  243 typedef __vm_ooffset_t  vm_ooffset_t;
  244 typedef __vm_paddr_t    vm_paddr_t;
  245 typedef __vm_pindex_t   vm_pindex_t;
  246 typedef __vm_size_t     vm_size_t;
  247 
  248 #ifdef _KERNEL
  249 typedef int             boolean_t;
  250 typedef struct device   *device_t;
  251 typedef __intfptr_t     intfptr_t;
  252 
  253 /*
  254  * XXX this is fixed width for historical reasons.  It should have had type
  255  * __int_fast32_t.  Fixed-width types should not be used unless binary
  256  * compatibility is essential.  Least-width types should be used even less
  257  * since they provide smaller benefits.
  258  *
  259  * XXX should be MD.
  260  *
  261  * XXX this is bogus in -current, but still used for spl*().
  262  */
  263 typedef __uint32_t      intrmask_t;     /* Interrupt mask (spl, xxx_imask...) */
  264 
  265 typedef __uintfptr_t    uintfptr_t;
  266 typedef __uint64_t      uoff_t;
  267 typedef char            vm_memattr_t;   /* memory attribute codes */
  268 typedef struct vm_page  *vm_page_t;
  269 
  270 #if !defined(__bool_true_false_are_defined) && !defined(__cplusplus)
  271 #define __bool_true_false_are_defined   1
  272 #define false   0
  273 #define true    1
  274 #if __STDC_VERSION__ < 199901L && __GNUC__ < 3 && !defined(__INTEL_COMPILER)
  275 typedef int     _Bool;
  276 #endif
  277 typedef _Bool   bool;
  278 #endif /* !__bool_true_false_are_defined && !__cplusplus */
  279 
  280 #define offsetof(type, field) __offsetof(type, field)
  281 
  282 #endif /* !_KERNEL */
  283 
  284 /*
  285  * The following are all things that really shouldn't exist in this header,
  286  * since its purpose is to provide typedefs, not miscellaneous doodads.
  287  */
  288 #if __BSD_VISIBLE
  289 
  290 #include <sys/select.h>
  291 
  292 #ifdef __POPCNT__
  293 #define __bitcount64(x) __builtin_popcountll((__uint64_t)(x))
  294 #define __bitcount32(x) __builtin_popcount((__uint32_t)(x))
  295 #define __bitcount16(x) __builtin_popcount((__uint16_t)(x))
  296 #define __bitcountl(x)  __builtin_popcountl((unsigned long)(x))
  297 #define __bitcount(x)   __builtin_popcount((unsigned int)(x))
  298 #else
  299 /*
  300  * Population count algorithm using SWAR approach
  301  * - "SIMD Within A Register".
  302  */
  303 static __inline __uint16_t
  304 __bitcount16(__uint16_t _x)
  305 {
  306 
  307         _x = (_x & 0x5555) + ((_x & 0xaaaa) >> 1);
  308         _x = (_x & 0x3333) + ((_x & 0xcccc) >> 2);
  309         _x = (_x + (_x >> 4)) & 0x0f0f;
  310         _x = (_x + (_x >> 8)) & 0x00ff;
  311         return (_x);
  312 }
  313 
  314 static __inline __uint32_t
  315 __bitcount32(__uint32_t _x)
  316 {
  317 
  318         _x = (_x & 0x55555555) + ((_x & 0xaaaaaaaa) >> 1);
  319         _x = (_x & 0x33333333) + ((_x & 0xcccccccc) >> 2);
  320         _x = (_x + (_x >> 4)) & 0x0f0f0f0f;
  321         _x = (_x + (_x >> 8));
  322         _x = (_x + (_x >> 16)) & 0x000000ff;
  323         return (_x);
  324 }
  325 
  326 #ifdef __LP64__
  327 static __inline __uint64_t
  328 __bitcount64(__uint64_t _x)
  329 {
  330 
  331         _x = (_x & 0x5555555555555555) + ((_x & 0xaaaaaaaaaaaaaaaa) >> 1);
  332         _x = (_x & 0x3333333333333333) + ((_x & 0xcccccccccccccccc) >> 2);
  333         _x = (_x + (_x >> 4)) & 0x0f0f0f0f0f0f0f0f;
  334         _x = (_x + (_x >> 8));
  335         _x = (_x + (_x >> 16));
  336         _x = (_x + (_x >> 32)) & 0x000000ff;
  337         return (_x);
  338 }
  339 
  340 #define __bitcountl(x)  __bitcount64((unsigned long)(x))
  341 #else
  342 static __inline __uint64_t
  343 __bitcount64(__uint64_t _x)
  344 {
  345 
  346         return (__bitcount32(_x >> 32) + __bitcount32(_x));
  347 }
  348 
  349 #define __bitcountl(x)  __bitcount32((unsigned long)(x))
  350 #endif
  351 #define __bitcount(x)   __bitcount32((unsigned int)(x))
  352 #endif
  353 
  354 /*
  355  * minor() gives a cookie instead of an index since we don't want to
  356  * change the meanings of bits 0-15 or waste time and space shifting
  357  * bits 16-31 for devices that don't use them.
  358  */
  359 #define major(x)        ((int)(((u_int)(x) >> 8)&0xff)) /* major number */
  360 #define minor(x)        ((int)((x)&0xffff00ff))         /* minor number */
  361 #define makedev(x,y)    ((dev_t)(((x) << 8) | (y)))     /* create dev_t */
  362 
  363 /*
  364  * These declarations belong elsewhere, but are repeated here and in
  365  * <stdio.h> to give broken programs a better chance of working with
  366  * 64-bit off_t's.
  367  */
  368 #ifndef _KERNEL
  369 __BEGIN_DECLS
  370 #ifndef _FTRUNCATE_DECLARED
  371 #define _FTRUNCATE_DECLARED
  372 int      ftruncate(int, off_t);
  373 #endif
  374 #ifndef _LSEEK_DECLARED
  375 #define _LSEEK_DECLARED
  376 off_t    lseek(int, off_t, int);
  377 #endif
  378 #ifndef _MMAP_DECLARED
  379 #define _MMAP_DECLARED
  380 void *   mmap(void *, size_t, int, int, int, off_t);
  381 #endif
  382 #ifndef _TRUNCATE_DECLARED
  383 #define _TRUNCATE_DECLARED
  384 int      truncate(const char *, off_t);
  385 #endif
  386 __END_DECLS
  387 #endif /* !_KERNEL */
  388 
  389 #endif /* __BSD_VISIBLE */
  390 
  391 #endif /* !_SYS_TYPES_H_ */

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