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 /*      $NetBSD: types.h,v 1.66.2.1 2005/05/28 13:36:29 tron Exp $      */
    2 
    3 /*-
    4  * Copyright (c) 1982, 1986, 1991, 1993, 1994
    5  *      The Regents of the University of California.  All rights reserved.
    6  * (c) UNIX System Laboratories, Inc.
    7  * All or some portions of this file are derived from material licensed
    8  * to the University of California by American Telephone and Telegraph
    9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   10  * the permission of UNIX System Laboratories, Inc.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  * 3. Neither the name of the University nor the names of its contributors
   21  *    may be used to endorse or promote products derived from this software
   22  *    without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   34  * SUCH DAMAGE.
   35  *
   36  *      @(#)types.h     8.4 (Berkeley) 1/21/94
   37  */
   38 
   39 #ifndef _SYS_TYPES_H_
   40 #define _SYS_TYPES_H_
   41 
   42 #include <sys/featuretest.h>
   43 
   44 /* Machine type dependent parameters. */
   45 #include <machine/types.h>
   46 
   47 #include <machine/ansi.h>
   48 #include <machine/int_types.h>
   49 
   50 
   51 #include <sys/ansi.h>
   52 
   53 #ifndef int8_t
   54 typedef __int8_t        int8_t;
   55 #define int8_t          __int8_t
   56 #endif
   57 
   58 #ifndef uint8_t
   59 typedef __uint8_t       uint8_t;
   60 #define uint8_t         __uint8_t
   61 #endif
   62 
   63 #ifndef int16_t
   64 typedef __int16_t       int16_t;
   65 #define int16_t         __int16_t
   66 #endif
   67 
   68 #ifndef uint16_t
   69 typedef __uint16_t      uint16_t;
   70 #define uint16_t        __uint16_t
   71 #endif
   72 
   73 #ifndef int32_t
   74 typedef __int32_t       int32_t;
   75 #define int32_t         __int32_t
   76 #endif
   77 
   78 #ifndef uint32_t
   79 typedef __uint32_t      uint32_t;
   80 #define uint32_t        __uint32_t
   81 #endif
   82 
   83 #ifndef int64_t
   84 typedef __int64_t       int64_t;
   85 #define int64_t         __int64_t
   86 #endif
   87 
   88 #ifndef uint64_t
   89 typedef __uint64_t      uint64_t;
   90 #define uint64_t        __uint64_t
   91 #endif
   92 
   93 typedef uint8_t         u_int8_t;
   94 typedef uint16_t        u_int16_t;
   95 typedef uint32_t        u_int32_t;
   96 typedef uint64_t        u_int64_t;
   97 
   98 #include <machine/endian.h>
   99 
  100 #if defined(_NETBSD_SOURCE)
  101 typedef unsigned char   u_char;
  102 typedef unsigned short  u_short;
  103 typedef unsigned int    u_int;
  104 typedef unsigned long   u_long;
  105 
  106 typedef unsigned char   unchar;         /* Sys V compatibility */
  107 typedef unsigned short  ushort;         /* Sys V compatibility */
  108 typedef unsigned int    uint;           /* Sys V compatibility */
  109 typedef unsigned long   ulong;          /* Sys V compatibility */
  110 
  111 typedef u_long          cpuid_t;
  112 #endif
  113 
  114 typedef uint64_t        u_quad_t;       /* quads */
  115 typedef int64_t         quad_t;
  116 typedef quad_t *        qaddr_t;
  117 
  118 /*
  119  * The types longlong_t and u_longlong_t exist for use with the
  120  * Sun-derived XDR routines involving these types, and their usage
  121  * in other contexts is discouraged.  Further note that these types
  122  * may not be equivalent to "long long" and "unsigned long long",
  123  * they are only guaranteed to be signed and unsigned 64-bit types
  124  * respectively.  Portable programs that need 64-bit types should use
  125  * the C99 types int64_t and uint64_t instead.
  126  */
  127 
  128 typedef int64_t         longlong_t;     /* for XDR */
  129 typedef uint64_t        u_longlong_t;   /* for XDR */
  130 
  131 typedef int64_t         blkcnt_t;       /* fs block count */
  132 typedef uint32_t        blksize_t;      /* fs optimal block size */
  133 
  134 #ifndef fsblkcnt_t
  135 typedef __fsblkcnt_t    fsblkcnt_t;     /* fs block count (statvfs) */
  136 #define fsblkcnt_t      __fsblkcnt_t
  137 #endif
  138 
  139 #ifndef fsfilcnt_t
  140 typedef __fsfilcnt_t    fsfilcnt_t;     /* fs file count */
  141 #define fsfilcnt_t      __fsfilcnt_t
  142 #endif
  143 
  144 #ifndef caddr_t
  145 typedef __caddr_t       caddr_t;        /* core address */
  146 #define caddr_t         __caddr_t
  147 #endif
  148 
  149 #ifdef __daddr_t
  150 typedef __daddr_t       daddr_t;        /* disk address */
  151 #undef __daddr_t
  152 #else
  153 typedef int64_t         daddr_t;        /* disk address */
  154 #endif
  155 
  156 typedef uint32_t        dev_t;          /* device number */
  157 typedef uint32_t        fixpt_t;        /* fixed point number */
  158 
  159 #ifndef gid_t
  160 typedef __gid_t         gid_t;          /* group id */
  161 #define gid_t           __gid_t
  162 #endif
  163 
  164 typedef uint32_t        id_t;           /* group id, process id or user id */
  165 typedef uint32_t        ino_t;          /* inode number */
  166 typedef long            key_t;          /* IPC key (for Sys V IPC) */
  167 
  168 #ifndef mode_t
  169 typedef __mode_t        mode_t;         /* permissions */
  170 #define mode_t          __mode_t
  171 #endif
  172 
  173 typedef uint32_t        nlink_t;        /* link count */
  174 
  175 #ifndef off_t
  176 typedef __off_t         off_t;          /* file offset */
  177 #define off_t           __off_t
  178 #endif
  179 
  180 #ifndef pid_t
  181 typedef __pid_t         pid_t;          /* process id */
  182 #define pid_t           __pid_t
  183 #endif
  184 typedef int32_t         lwpid_t;        /* LWP id */
  185 typedef quad_t          rlim_t;         /* resource limit */
  186 typedef int32_t         segsz_t;        /* segment size */
  187 typedef int32_t         swblk_t;        /* swap offset */
  188 
  189 #ifndef uid_t
  190 typedef __uid_t         uid_t;          /* user id */
  191 #define uid_t           __uid_t
  192 #endif
  193 
  194 typedef int32_t         dtime_t;        /* on-disk time_t */
  195 
  196 #if defined(_KERNEL)
  197 typedef int     boolean_t;
  198 #ifndef TRUE
  199 #define TRUE    1
  200 #endif
  201 #ifndef FALSE
  202 #define FALSE   0
  203 #endif
  204 #endif
  205 
  206 #if defined(_KERNEL) || defined(_LIBC)
  207 /*
  208  * semctl(2)'s argument structure.  This is here for the benefit of
  209  * <sys/syscallargs.h>.  It is not in the user's namespace in SUSv2.
  210  * The SUSv2 semctl(2) takes variable arguments.
  211  */
  212 union __semun {
  213         int             val;            /* value for SETVAL */
  214         struct semid_ds *buf;           /* buffer for IPC_STAT & IPC_SET */
  215         unsigned short  *array;         /* array for GETALL & SETALL */
  216 };
  217 /* For the same reason as above */
  218 #include <sys/stdint.h>
  219 typedef intptr_t semid_t;
  220 #endif /* _KERNEL || _LIBC */
  221 
  222 /*
  223  * These belong in unistd.h, but are placed here too to ensure that
  224  * long arguments will be promoted to off_t if the program fails to
  225  * include that header or explicitly cast them to off_t.
  226  */
  227 #if defined(_NETBSD_SOURCE)
  228 #ifndef __OFF_T_SYSCALLS_DECLARED
  229 #define __OFF_T_SYSCALLS_DECLARED
  230 #ifndef _KERNEL
  231 #include <sys/cdefs.h>
  232 __BEGIN_DECLS
  233 off_t    lseek(int, off_t, int);
  234 int      ftruncate(int, off_t);
  235 int      truncate(const char *, off_t);
  236 __END_DECLS
  237 #endif /* !_KERNEL */
  238 #endif /* __OFF_T_SYSCALLS_DECLARED */
  239 #endif /* defined(_NETBSD_SOURCE) */
  240 
  241 #if defined(_NETBSD_SOURCE)
  242 /* Major, minor numbers, dev_t's. */
  243 #define major(x)        ((int32_t)((((x) & 0x000fff00) >>  8)))
  244 #define minor(x)        ((int32_t)((((x) & 0xfff00000) >> 12) | \
  245                                    (((x) & 0x000000ff) >>  0)))
  246 #define makedev(x,y)    ((dev_t)((((x) <<  8) & 0x000fff00) | \
  247                                  (((y) << 12) & 0xfff00000) | \
  248                                  (((y) <<  0) & 0x000000ff)))
  249 #endif
  250 
  251 #ifdef  _BSD_CLOCK_T_
  252 typedef _BSD_CLOCK_T_           clock_t;
  253 #undef  _BSD_CLOCK_T_
  254 #endif
  255 
  256 #ifdef  _BSD_SIZE_T_
  257 typedef _BSD_SIZE_T_            size_t;
  258 #define _SIZE_T
  259 #undef  _BSD_SIZE_T_
  260 #endif
  261 
  262 #ifdef  _BSD_SSIZE_T_
  263 typedef _BSD_SSIZE_T_           ssize_t;
  264 #undef  _BSD_SSIZE_T_
  265 #endif
  266 
  267 #ifdef  _BSD_TIME_T_
  268 typedef _BSD_TIME_T_            time_t;
  269 #undef  _BSD_TIME_T_
  270 #endif
  271 
  272 #ifdef  _BSD_CLOCKID_T_
  273 typedef _BSD_CLOCKID_T_         clockid_t;
  274 #undef  _BSD_CLOCKID_T_
  275 #endif
  276 
  277 #ifdef  _BSD_TIMER_T_
  278 typedef _BSD_TIMER_T_           timer_t;
  279 #undef  _BSD_TIMER_T_
  280 #endif
  281 
  282 #ifdef  _BSD_SUSECONDS_T_
  283 typedef _BSD_SUSECONDS_T_       suseconds_t;
  284 #undef  _BSD_SUSECONDS_T_
  285 #endif
  286 
  287 #ifdef  _BSD_USECONDS_T_
  288 typedef _BSD_USECONDS_T_        useconds_t;
  289 #undef  _BSD_USECONDS_T_
  290 #endif
  291 
  292 #if (defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)) || \
  293     (_POSIX_C_SOURCE - 0) >= 200112L || \
  294     (_XOPEN_SOURCE - 0) >= 500 || defined(_NETBSD_SOURCE)
  295 
  296 /*
  297  * Implementation dependent defines, hidden from user space. X/Open does not
  298  * specify them.
  299  */
  300 #define __NBBY  8               /* number of bits in a byte */
  301 typedef int32_t __fd_mask;
  302 
  303 /* bits per mask */
  304 #define __NFDBITS       ((unsigned int)sizeof(__fd_mask) * __NBBY)
  305 
  306 #ifndef howmany
  307 #define __howmany(x, y) (((x) + ((y) - 1)) / (y))
  308 #else
  309 #define __howmany(x, y) howmany(x, y)
  310 #endif
  311 
  312 /*
  313  * Select uses bit masks of file descriptors in longs.  These macros
  314  * manipulate such bit fields (the filesystem macros use chars).
  315  * FD_SETSIZE may be defined by the user, but the default here should
  316  * be enough for most uses.
  317  */
  318 #ifndef FD_SETSIZE
  319 #define FD_SETSIZE      256
  320 #endif
  321 
  322 typedef struct fd_set {
  323         __fd_mask       fds_bits[__howmany(FD_SETSIZE, __NFDBITS)];
  324 } fd_set;
  325 
  326 #define FD_SET(n, p)    \
  327     ((p)->fds_bits[(n)/__NFDBITS] |= (1 << ((n) % __NFDBITS)))
  328 #define FD_CLR(n, p)    \
  329     ((p)->fds_bits[(n)/__NFDBITS] &= ~(1 << ((n) % __NFDBITS)))
  330 #define FD_ISSET(n, p)  \
  331     ((p)->fds_bits[(n)/__NFDBITS] & (1 << ((n) % __NFDBITS)))
  332 #if __GNUC_PREREQ__(2, 95)
  333 #define FD_ZERO(p)      (void)__builtin_memset((p), 0, sizeof(*(p)))
  334 #else
  335 #define FD_ZERO(p)      do {                                            \
  336         fd_set *__fds = (p);                                            \
  337         unsigned int __i;                                               \
  338         for (__i = 0; __i < __howmany(FD_SETSIZE, __NFDBITS); __i++)    \
  339                 __fds->fds_bits[__i] = 0;                               \
  340         } while (/* CONSTCOND */ 0)
  341 #endif /* GCC 2.95 */
  342 
  343 /*
  344  * Expose our internals if we are not required to hide them.
  345  */
  346 #if defined(_NETBSD_SOURCE)
  347 
  348 #define NBBY __NBBY
  349 #define fd_mask __fd_mask
  350 #define NFDBITS __NFDBITS
  351 #ifndef howmany
  352 #define howmany(a, b) __howmany(a, b)
  353 #endif
  354 
  355 #if __GNUC_PREREQ__(2, 95)
  356 #define FD_COPY(f, t)   (void)__builtin_memcpy((t), (f), sizeof(*(f)))
  357 #else
  358 #define FD_COPY(f, t)   do {                                            \
  359         fd_set *__f = (f), *__t = (t);                                  \
  360         unsigned int __i;                                               \
  361         for (__i = 0; __i < __howmany(FD_SETSIZE, __NFDBITS); __i++)    \
  362                 __t->fds_bits[__i] = __f->fds_bits[__i];                \
  363         } while (/* CONSTCOND */ 0)
  364 #endif /* GCC 2.95 */
  365 
  366 #endif
  367 
  368 #if defined(__STDC__) && defined(_KERNEL)
  369 /*
  370  * Forward structure declarations for function prototypes.  We include the
  371  * common structures that cross subsystem boundaries here; others are mostly
  372  * used in the same place that the structure is defined.
  373  */
  374 struct  lwp;
  375 struct  user;
  376 struct  __ucontext;
  377 struct  proc;
  378 struct  pgrp;
  379 struct  ucred;
  380 struct  rusage;
  381 struct  file;
  382 struct  buf;
  383 struct  tty;
  384 struct  uio;
  385 #endif
  386 
  387 #endif /* _XOPEN_SOURCE_EXTENDED || _XOPEN_SOURCE >= 500 || _NETBSD_SOURCE */
  388 
  389 #if !defined(_KERNEL) && !defined(_STANDALONE)
  390 #if (_POSIX_C_SOURCE - 0L) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
  391     defined(_NETBSD_SOURCE)
  392 #include <pthread_types.h>
  393 #endif
  394 #endif
  395 
  396 #endif /* !_SYS_TYPES_H_ */

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