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

     /*-
      * Copyright (c) 1982, 1986, 1991, 1993, 1994
      *      The Regents of the University of California.  All rights reserved.
      * (c) UNIX System Laboratories, Inc.
      * All or some portions of this file are derived from material licensed
      * to the University of California by American Telephone and Telegraph
      * Co. or Unix System Laboratories, Inc. and are reproduced herein with
      * the permission of UNIX System Laboratories, Inc.
      *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by the University of
     *      California, Berkeley and its contributors.
     * 4. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)types.h     8.6 (Berkeley) 2/19/95
     * $FreeBSD: src/sys/sys/types.h,v 1.11.2.4 1999/09/05 08:23:12 peter Exp $
     */
    
    #ifndef _SYS_TYPES_H_
    #define _SYS_TYPES_H_
     
    #include <sys/cdefs.h>
    
    /* Machine type dependent parameters. */
    #include <machine/ansi.h>
    #include <machine/types.h>
    
    #ifndef _POSIX_SOURCE
    typedef unsigned char   u_char;
    typedef unsigned short  u_short;
    typedef unsigned int    u_int;
    typedef unsigned long   u_long;
    typedef unsigned short  ushort;         /* Sys V compatibility */
    typedef unsigned int    uint;           /* Sys V compatibility */
    #endif
    
    typedef u_int64_t       u_quad_t;       /* quads */
    typedef int64_t         quad_t;
    typedef quad_t *        qaddr_t;
    
    typedef char *          caddr_t;        /* core address */
    typedef int32_t         daddr_t;        /* disk address */
    typedef u_int32_t       dev_t;          /* device number */
    typedef u_int32_t       fixpt_t;        /* fixed point number */
    typedef u_int32_t       gid_t;          /* group id */
    typedef u_int32_t       ino_t;          /* inode number */
    typedef long            key_t;          /* IPC key (for Sys V IPC) */
    typedef u_int16_t       mode_t;         /* permissions */
    typedef u_int16_t       nlink_t;        /* link count */
    typedef _BSD_OFF_T_     off_t;          /* file offset */
    typedef _BSD_PID_T_     pid_t;          /* process id */
    typedef quad_t          rlim_t;         /* resource limit */
    typedef int32_t         segsz_t;        /* segment size */
    typedef int32_t         swblk_t;        /* swap offset */
    typedef u_int32_t       uid_t;          /* user id */
    
    #ifdef KERNEL
    typedef int             boolean_t;
    typedef struct vm_page  *vm_page_t;
    #endif
    
    #ifndef _POSIX_SOURCE
    /*
     * minor() gives a cookie instead of an index since we don't want to
     * change the meanings of bits 0-15 or waste time and space shifting
     * bits 16-31 for devices that don't use them.
     */
    #define major(x)        ((int)(((u_int)(x) >> 8)&0xff)) /* major number */
    #define minor(x)        ((int)((x)&0xffff00ff))         /* minor number */
    #define makedev(x,y)    ((dev_t)(((x) << 8) | (y)))     /* create dev_t */
    #endif
    
    #include <machine/endian.h>
    
    #ifdef  _BSD_CLOCK_T_
    typedef _BSD_CLOCK_T_   clock_t;
   #undef  _BSD_CLOCK_T_
   #endif
   
   #ifdef  _BSD_SIZE_T_
   typedef _BSD_SIZE_T_    size_t;
   #undef  _BSD_SIZE_T_
   #endif
   
   #ifdef  _BSD_SSIZE_T_
   typedef _BSD_SSIZE_T_   ssize_t;
   #undef  _BSD_SSIZE_T_
   #endif
   
   #ifdef  _BSD_TIME_T_
   typedef _BSD_TIME_T_    time_t;
   #undef  _BSD_TIME_T_
   #endif
   
   #ifndef _POSIX_SOURCE
   #define NBBY    8               /* number of bits in a byte */
   
   /*
    * Select uses bit masks of file descriptors in longs.  These macros
    * manipulate such bit fields (the filesystem macros use chars).
    * FD_SETSIZE may be defined by the user, but the default here should
    * be enough for most uses.
    */
   #ifndef FD_SETSIZE
   #define FD_SETSIZE      256
   #endif
   
   typedef long    fd_mask;
   #define NFDBITS (sizeof(fd_mask) * NBBY)        /* bits per mask */
   
   #ifndef howmany
   #define howmany(x, y)   (((x) + ((y) - 1)) / (y))
   #endif
   
   typedef struct fd_set {
           fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
   } fd_set;
   
   #define FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
   #define FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
   #define FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
   #define FD_COPY(f, t)   bcopy(f, t, sizeof(*(f)))
   #define FD_ZERO(p)      bzero(p, sizeof(*(p)))
   
   /*
    * These declarations belong elsewhere, but are repeated here and in
    * <stdio.h> to give broken programs a better chance of working with
    * 64-bit off_t's.
    */
   #ifndef KERNEL
   __BEGIN_DECLS
   #ifndef _FTRUNCATE_DECLARED
   #define _FTRUNCATE_DECLARED
   int      ftruncate __P((int, off_t));
   #endif
   #ifndef _LSEEK_DECLARED
   #define _LSEEK_DECLARED
   off_t    lseek __P((int, off_t, int));
   #endif
   #ifndef _MMAP_DECLARED
   #define _MMAP_DECLARED
   caddr_t  mmap __P((caddr_t, size_t, int, int, int, off_t));
   #endif
   #ifndef _TRUNCATE_DECLARED
   #define _TRUNCATE_DECLARED
   int      truncate __P((const char *, off_t));
   #endif
   __END_DECLS
   #endif /* !KERNEL */
   
   #if defined(__STDC__) && defined(KERNEL)
   /*
    * Forward structure declarations for function prototypes.  We include the
    * common structures that cross subsystem boundaries here; others are mostly
    * used in the same place that the structure is defined.
    */
   struct  proc;
   struct  pgrp;
   struct  ucred;
   struct  rusage;
   struct  file;
   struct  buf;
   struct  tty;
   struct  uio;
   #endif
   
   #endif /* !_POSIX_SOURCE */
   #endif /* !_SYS_TYPES_H_ */

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