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  * Mach Operating System
    3  * Copyright (c) 1993 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon 
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        types.h,v $
   29  * Revision 2.9  93/03/11  13:46:33  danner
   30  *      Removed u_long definition.
   31  *      Removed definition of size_t.
   32  *      This file is EXCLUSIVELY here for compat reasons, nothing
   33  *      should be added to it at this point. 
   34  *      [93/03/06  14:46:00  af]
   35  * 
   36  * Revision 2.8  93/02/01  09:50:33  danner
   37  *      Updated copyright.
   38  *      [93/01/12            berman]
   39  *      Added label_t for sparc compilers.
   40  *      [92/12/24            berman]
   41  * 
   42  * Revision 2.7  93/01/14  18:00:11  danner
   43  *      Added definition of size_t.
   44  *      Added void * cast to the definition of NULL.
   45  *      [92/12/15            pds]
   46  * 
   47  * Revision 2.6  91/05/14  17:40:39  mrt
   48  *      Correcting copyright
   49  * 
   50  * Revision 2.5  91/02/05  17:57:07  mrt
   51  *      Changed to new Mach copyright
   52  *      [91/02/01  17:49:41  mrt]
   53  * 
   54  * Revision 2.4  90/08/27  22:13:03  dbg
   55  *      Created.
   56  *      [90/07/16            dbg]
   57  * 
   58  */
   59 #ifndef _SYS_TYPES_H_
   60 #define _SYS_TYPES_H_
   61 
   62 /*
   63  * Common type definitions that lots of old files seem to want.
   64  */
   65 
   66 typedef unsigned char   u_char;         /* unsigned char */
   67 typedef unsigned short  u_short;        /* unsigned short */
   68 typedef unsigned int    u_int;          /* unsigned int */
   69 
   70 typedef struct _quad_ {
   71         unsigned int    val[2];         /* 2 long values make... */
   72 } quad;                                 /* an 8-byte item */
   73 
   74 typedef char *          caddr_t;        /* address of a (signed) char */
   75 
   76 #if     !defined(_TIME_T_)
   77 #define _TIME_T_ 1
   78 typedef unsigned int    time_t;         /* a 32bit integer */
   79 #endif  /* not defined(_TIME_T_) */
   80 
   81 typedef unsigned int    daddr_t;        /* a 32bit integer */
   82 typedef unsigned int    off_t;          /* another 32bit integer */
   83 
   84 typedef unsigned short  dev_t;          /* another unsigned short */
   85 #define NODEV           ((dev_t)-1)     /* and a null value for it */
   86 
   87 #define major(i)        ((i) >> 8)
   88 #define minor(i)        ((i) & 0xFF)
   89 #define makedev(i,j)    (((i) << 8) | (j))
   90 
   91 #ifndef NULL
   92 #define NULL            ((void *) 0)    /* the null pointer */
   93 #endif
   94 
   95 #ifdef sparc
   96 typedef struct  _physadr { int r[1]; } *physadr;
   97 typedef struct label_t {
   98         int     val[2];
   99 } label_t;
  100 #endif
  101 
  102 #endif  /* _SYS_TYPES_H_ */

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