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  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by the University of
   21  *      California, Berkeley and its contributors.
   22  * 4. Neither the name of the University nor the names of its contributors
   23  *    may be used to endorse or promote products derived from this software
   24  *    without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   36  * SUCH DAMAGE.
   37  *
   38  *      @(#)types.h     8.6 (Berkeley) 2/19/95
   39  * $FreeBSD$
   40  */
   41 
   42 #ifndef _SYS_TYPES_H_
   43 #define _SYS_TYPES_H_
   44 
   45 #include <sys/cdefs.h>
   46 
   47 /* Machine type dependent parameters. */
   48 #include <sys/inttypes.h>               /* includes <machine/ansi.h> */
   49 #include <machine/types.h>
   50 
   51 #ifndef _POSIX_SOURCE
   52 typedef unsigned char   u_char;
   53 typedef unsigned short  u_short;
   54 typedef unsigned int    u_int;
   55 typedef unsigned long   u_long;
   56 typedef unsigned short  ushort;         /* Sys V compatibility */
   57 typedef unsigned int    uint;           /* Sys V compatibility */
   58 #endif
   59 
   60 typedef __uint8_t       u_int8_t;
   61 typedef __uint16_t      u_int16_t;
   62 typedef __uint32_t      u_int32_t;
   63 typedef __uint64_t      u_int64_t;
   64 
   65 typedef u_int64_t       u_quad_t;       /* quads */
   66 typedef int64_t         quad_t;
   67 typedef quad_t *        qaddr_t;
   68 
   69 typedef char *          caddr_t;        /* core address */
   70 typedef int32_t         daddr_t;        /* disk address */
   71 typedef u_int32_t       dev_t;          /* device number */
   72 typedef u_int32_t       fixpt_t;        /* fixed point number */
   73 typedef u_int32_t       gid_t;          /* group id */
   74 typedef u_int32_t       ino_t;          /* inode number */
   75 typedef long            key_t;          /* IPC key (for Sys V IPC) */
   76 typedef u_int16_t       mode_t;         /* permissions */
   77 typedef u_int16_t       nlink_t;        /* link count */
   78 typedef _BSD_OFF_T_     off_t;          /* file offset */
   79 typedef _BSD_PID_T_     pid_t;          /* process id */
   80 typedef quad_t          rlim_t;         /* resource limit */
   81 #ifdef __alpha__                /* XXX should be in <machine/types.h> */
   82 typedef int64_t         segsz_t;        /* segment size */
   83 #else
   84 typedef int32_t         segsz_t;        /* segment size */
   85 #endif
   86 typedef int32_t         swblk_t;        /* swap offset */
   87 typedef int32_t         ufs_daddr_t;
   88 typedef u_int32_t       uid_t;          /* user id */
   89 
   90 #ifdef KERNEL
   91 typedef int             boolean_t;
   92 typedef u_int64_t       uoff_t;
   93 typedef struct vm_page  *vm_page_t;
   94 #endif
   95 
   96 #ifndef _POSIX_SOURCE
   97 /*
   98  * minor() gives a cookie instead of an index since we don't want to
   99  * change the meanings of bits 0-15 or waste time and space shifting
  100  * bits 16-31 for devices that don't use them.
  101  */
  102 #define major(x)        ((int)(((u_int)(x) >> 8)&0xff)) /* major number */
  103 #define minor(x)        ((int)((x)&0xffff00ff))         /* minor number */
  104 #define makedev(x,y)    ((dev_t)(((x) << 8) | (y)))     /* create dev_t */
  105 #endif
  106 
  107 #include <machine/endian.h>
  108 
  109 #ifdef  _BSD_CLOCK_T_
  110 typedef _BSD_CLOCK_T_   clock_t;
  111 #undef  _BSD_CLOCK_T_
  112 #endif
  113 
  114 #ifdef  _BSD_CLOCKID_T_
  115 typedef _BSD_CLOCKID_T_ clockid_t;
  116 #undef  _BSD_CLOCKID_T_
  117 #endif
  118 
  119 #ifdef  _BSD_SIZE_T_
  120 typedef _BSD_SIZE_T_    size_t;
  121 #undef  _BSD_SIZE_T_
  122 #endif
  123 
  124 #ifdef  _BSD_SSIZE_T_
  125 typedef _BSD_SSIZE_T_   ssize_t;
  126 #undef  _BSD_SSIZE_T_
  127 #endif
  128 
  129 #ifdef  _BSD_TIME_T_
  130 typedef _BSD_TIME_T_    time_t;
  131 #undef  _BSD_TIME_T_
  132 #endif
  133 
  134 #ifdef  _BSD_TIMER_T_
  135 typedef _BSD_TIMER_T_   timer_t;
  136 #undef  _BSD_TIMER_T_
  137 #endif
  138 
  139 #ifndef _POSIX_SOURCE
  140 #define NBBY    8               /* number of bits in a byte */
  141 
  142 /*
  143  * Select uses bit masks of file descriptors in longs.  These macros
  144  * manipulate such bit fields (the filesystem macros use chars).
  145  * FD_SETSIZE may be defined by the user, but the default here should
  146  * be enough for most uses.
  147  */
  148 #ifndef FD_SETSIZE
  149 #define FD_SETSIZE      1024
  150 #endif
  151 
  152 typedef long    fd_mask;
  153 #define NFDBITS (sizeof(fd_mask) * NBBY)        /* bits per mask */
  154 
  155 #ifndef howmany
  156 #define howmany(x, y)   (((x) + ((y) - 1)) / (y))
  157 #endif
  158 
  159 typedef struct fd_set {
  160         fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
  161 } fd_set;
  162 
  163 #define FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
  164 #define FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
  165 #define FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
  166 #define FD_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
  167 #define FD_ZERO(p)      bzero(p, sizeof(*(p)))
  168 
  169 /*
  170  * These declarations belong elsewhere, but are repeated here and in
  171  * <stdio.h> to give broken programs a better chance of working with
  172  * 64-bit off_t's.
  173  */
  174 #ifndef KERNEL
  175 __BEGIN_DECLS
  176 #ifndef _FTRUNCATE_DECLARED
  177 #define _FTRUNCATE_DECLARED
  178 int      ftruncate __P((int, off_t));
  179 #endif
  180 #ifndef _LSEEK_DECLARED
  181 #define _LSEEK_DECLARED
  182 off_t    lseek __P((int, off_t, int));
  183 #endif
  184 #ifndef _MMAP_DECLARED
  185 #define _MMAP_DECLARED
  186 void *   mmap __P((void *, size_t, int, int, int, off_t));
  187 #endif
  188 #ifndef _TRUNCATE_DECLARED
  189 #define _TRUNCATE_DECLARED
  190 int      truncate __P((const char *, off_t));
  191 #endif
  192 __END_DECLS
  193 #endif /* !KERNEL */
  194 
  195 #endif /* !_POSIX_SOURCE */
  196 
  197 #endif /* !_SYS_TYPES_H_ */

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