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

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * 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. 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
     * $FreeBSD$
     */
    
    #ifndef _SYS_TYPES_H_
    #define _SYS_TYPES_H_
    
    #include <sys/cdefs.h>
    
    /* Machine type dependent parameters. */
    #include <machine/endian.h>
    #include <sys/_types.h>
    
    #include <sys/_pthreadtypes.h>
    
    #if __BSD_VISIBLE
    typedef unsigned char   u_char;
    typedef unsigned short  u_short;
    typedef unsigned int    u_int;
    typedef unsigned long   u_long;
    #ifndef _KERNEL
    typedef unsigned short  ushort;         /* Sys V compatibility */
    typedef unsigned int    uint;           /* Sys V compatibility */
    #endif
    #endif
    
    /*
     * XXX POSIX sized integrals that should appear only in <sys/stdint.h>.
     */
    #include <sys/_stdint.h>
    
    typedef __uint8_t       u_int8_t;       /* unsigned integrals (deprecated) */
    typedef __uint16_t      u_int16_t;
    typedef __uint32_t      u_int32_t;
    typedef __uint64_t      u_int64_t;
    
    typedef __uint64_t      u_quad_t;       /* quads (deprecated) */
    typedef __int64_t       quad_t;
    typedef quad_t *        qaddr_t;
    
    typedef char *          caddr_t;        /* core address */
    typedef const char *    c_caddr_t;      /* core address, pointer to const */
    
    #ifndef _BLKSIZE_T_DECLARED
    typedef __blksize_t     blksize_t;
    #define _BLKSIZE_T_DECLARED
    #endif
    
    typedef __cpuwhich_t    cpuwhich_t;
    typedef __cpulevel_t    cpulevel_t;
    typedef __cpusetid_t    cpusetid_t;
    
    #ifndef _BLKCNT_T_DECLARED
    typedef __blkcnt_t      blkcnt_t;
    #define _BLKCNT_T_DECLARED
    #endif
    
    #ifndef _CLOCK_T_DECLARED
    typedef __clock_t       clock_t;
    #define _CLOCK_T_DECLARED
    #endif
    
    #ifndef _CLOCKID_T_DECLARED
    typedef __clockid_t     clockid_t;
   #define _CLOCKID_T_DECLARED
   #endif
   
   typedef __critical_t    critical_t;     /* Critical section value */
   typedef __daddr_t       daddr_t;        /* disk address */
   
   #ifndef _DEV_T_DECLARED
   typedef __dev_t         dev_t;          /* device number or struct cdev */
   #define _DEV_T_DECLARED
   #endif
   
   #ifndef _FFLAGS_T_DECLARED
   typedef __fflags_t      fflags_t;       /* file flags */
   #define _FFLAGS_T_DECLARED
   #endif
   
   typedef __fixpt_t       fixpt_t;        /* fixed point number */
   
   #ifndef _FSBLKCNT_T_DECLARED            /* for statvfs() */
   typedef __fsblkcnt_t    fsblkcnt_t;
   typedef __fsfilcnt_t    fsfilcnt_t;
   #define _FSBLKCNT_T_DECLARED
   #endif
   
   #ifndef _GID_T_DECLARED
   typedef __gid_t         gid_t;          /* group id */
   #define _GID_T_DECLARED
   #endif
   
   #ifndef _IN_ADDR_T_DECLARED
   typedef __uint32_t      in_addr_t;      /* base type for internet address */
   #define _IN_ADDR_T_DECLARED
   #endif
   
   #ifndef _IN_PORT_T_DECLARED
   typedef __uint16_t      in_port_t;
   #define _IN_PORT_T_DECLARED
   #endif
   
   #ifndef _ID_T_DECLARED
   typedef __id_t          id_t;           /* can hold a uid_t or pid_t */
   #define _ID_T_DECLARED
   #endif
   
   #ifndef _INO_T_DECLARED
   typedef __ino_t         ino_t;          /* inode number */
   #define _INO_T_DECLARED
   #endif
   
   #ifndef _KEY_T_DECLARED
   typedef __key_t         key_t;          /* IPC key (for Sys V IPC) */
   #define _KEY_T_DECLARED
   #endif
   
   #ifndef _LWPID_T_DECLARED
   typedef __lwpid_t       lwpid_t;        /* Thread ID (a.k.a. LWP) */
   #define _LWPID_T_DECLARED
   #endif
   
   #ifndef _MODE_T_DECLARED
   typedef __mode_t        mode_t;         /* permissions */
   #define _MODE_T_DECLARED
   #endif
   
   #ifndef _ACCMODE_T_DECLARED
   typedef __accmode_t     accmode_t;      /* access permissions */
   #define _ACCMODE_T_DECLARED
   #endif
   
   #ifndef _NLINK_T_DECLARED
   typedef __nlink_t       nlink_t;        /* link count */
   #define _NLINK_T_DECLARED
   #endif
   
   #ifndef _OFF_T_DECLARED
   typedef __off_t         off_t;          /* file offset */
   #define _OFF_T_DECLARED
   #endif
   
   #ifndef _OFF64_T_DECLARED
   typedef __off64_t       off64_t;        /* file offset (alias) */
   #define _OFF64_T_DECLARED
   #endif
   
   #ifndef _PID_T_DECLARED
   typedef __pid_t         pid_t;          /* process id */
   #define _PID_T_DECLARED
   #endif
   
   typedef __register_t    register_t;
   
   #ifndef _RLIM_T_DECLARED
   typedef __rlim_t        rlim_t;         /* resource limit */
   #define _RLIM_T_DECLARED
   #endif
   
   typedef __int64_t       sbintime_t;
   
   typedef __segsz_t       segsz_t;        /* segment size (in pages) */
   
   #ifndef _SIZE_T_DECLARED
   typedef __size_t        size_t;
   #define _SIZE_T_DECLARED
   #endif
   
   #ifndef _SSIZE_T_DECLARED
   typedef __ssize_t       ssize_t;
   #define _SSIZE_T_DECLARED
   #endif
   
   #ifndef _SUSECONDS_T_DECLARED
   typedef __suseconds_t   suseconds_t;    /* microseconds (signed) */
   #define _SUSECONDS_T_DECLARED
   #endif
   
   #ifndef _TIME_T_DECLARED
   typedef __time_t        time_t;
   #define _TIME_T_DECLARED
   #endif
   
   #ifndef _TIMER_T_DECLARED
   typedef __timer_t       timer_t;
   #define _TIMER_T_DECLARED
   #endif
   
   #ifndef _MQD_T_DECLARED
   typedef __mqd_t mqd_t;
   #define _MQD_T_DECLARED
   #endif
   
   typedef __u_register_t  u_register_t;
   
   #ifndef _UID_T_DECLARED
   typedef __uid_t         uid_t;          /* user id */
   #define _UID_T_DECLARED
   #endif
   
   #ifndef _USECONDS_T_DECLARED
   typedef __useconds_t    useconds_t;     /* microseconds (unsigned) */
   #define _USECONDS_T_DECLARED
   #endif
   
   #ifndef _CAP_IOCTL_T_DECLARED
   #define _CAP_IOCTL_T_DECLARED
   typedef unsigned long   cap_ioctl_t;
   #endif
   
   #ifndef _CAP_RIGHTS_T_DECLARED
   #define _CAP_RIGHTS_T_DECLARED
   struct cap_rights;
   
   typedef struct cap_rights       cap_rights_t;
   #endif
   
   /*
    * Types suitable for exporting size and pointers (as virtual addresses)
    * from the kernel independent of native word size.  These should be
    * used in place of size_t and (u)intptr_t in structs which contain such
    * types that are shared with userspace.
    */
   typedef __uint64_t      kvaddr_t;
   typedef __uint64_t      ksize_t;
   
   typedef __vm_offset_t   vm_offset_t;
   typedef __uint64_t      vm_ooffset_t;
   typedef __vm_paddr_t    vm_paddr_t;
   typedef __uint64_t      vm_pindex_t;
   typedef __vm_size_t     vm_size_t;
   
   typedef __rman_res_t    rman_res_t;
   
   #ifdef _KERNEL
   typedef int             boolean_t;
   typedef struct device   *device_t;
   typedef __intfptr_t     intfptr_t;
   
   /*
    * XXX this is fixed width for historical reasons.  It should have had type
    * __int_fast32_t.  Fixed-width types should not be used unless binary
    * compatibility is essential.  Least-width types should be used even less
    * since they provide smaller benefits.
    *
    * XXX should be MD.
    *
    * XXX this is bogus in -current, but still used for spl*().
    */
   typedef __uint32_t      intrmask_t;     /* Interrupt mask (spl, xxx_imask...) */
   
   typedef __uintfptr_t    uintfptr_t;
   typedef __uint64_t      uoff_t;
   typedef char            vm_memattr_t;   /* memory attribute codes */
   typedef struct vm_page  *vm_page_t;
   
   #if !defined(__bool_true_false_are_defined) && !defined(__cplusplus)
   #define __bool_true_false_are_defined   1
   #define false   0
   #define true    1
   #if __STDC_VERSION__ < 199901L && __GNUC__ < 3 && !defined(__INTEL_COMPILER)
   typedef int     _Bool;
   #endif
   typedef _Bool   bool;
   #endif /* !__bool_true_false_are_defined && !__cplusplus */
   
   #define offsetof(type, field) __offsetof(type, field)
   
   #endif /* _KERNEL */
   
   /*
    * The following are all things that really shouldn't exist in this header,
    * since its purpose is to provide typedefs, not miscellaneous doodads.
    */
   
   #ifdef __POPCNT__
   #define __bitcount64(x) __builtin_popcountll((__uint64_t)(x))
   #define __bitcount32(x) __builtin_popcount((__uint32_t)(x))
   #define __bitcount16(x) __builtin_popcount((__uint16_t)(x))
   #define __bitcountl(x)  __builtin_popcountl((unsigned long)(x))
   #define __bitcount(x)   __builtin_popcount((unsigned int)(x))
   #else
   /*
    * Population count algorithm using SWAR approach
    * - "SIMD Within A Register".
    */
   static __inline __uint16_t
   __bitcount16(__uint16_t _x)
   {
   
           _x = (_x & 0x5555) + ((_x & 0xaaaa) >> 1);
           _x = (_x & 0x3333) + ((_x & 0xcccc) >> 2);
           _x = (_x + (_x >> 4)) & 0x0f0f;
           _x = (_x + (_x >> 8)) & 0x00ff;
           return (_x);
   }
   
   static __inline __uint32_t
   __bitcount32(__uint32_t _x)
   {
   
           _x = (_x & 0x55555555) + ((_x & 0xaaaaaaaa) >> 1);
           _x = (_x & 0x33333333) + ((_x & 0xcccccccc) >> 2);
           _x = (_x + (_x >> 4)) & 0x0f0f0f0f;
           _x = (_x + (_x >> 8));
           _x = (_x + (_x >> 16)) & 0x000000ff;
           return (_x);
   }
   
   #ifdef __LP64__
   static __inline __uint64_t
   __bitcount64(__uint64_t _x)
   {
   
           _x = (_x & 0x5555555555555555) + ((_x & 0xaaaaaaaaaaaaaaaa) >> 1);
           _x = (_x & 0x3333333333333333) + ((_x & 0xcccccccccccccccc) >> 2);
           _x = (_x + (_x >> 4)) & 0x0f0f0f0f0f0f0f0f;
           _x = (_x + (_x >> 8));
           _x = (_x + (_x >> 16));
           _x = (_x + (_x >> 32)) & 0x000000ff;
           return (_x);
   }
   
   #define __bitcountl(x)  __bitcount64((unsigned long)(x))
   #else
   static __inline __uint64_t
   __bitcount64(__uint64_t _x)
   {
   
           return (__bitcount32(_x >> 32) + __bitcount32(_x));
   }
   
   #define __bitcountl(x)  __bitcount32((unsigned long)(x))
   #endif
   #define __bitcount(x)   __bitcount32((unsigned int)(x))
   #endif
   
   #if __BSD_VISIBLE
   
   #include <sys/select.h>
   
   /*
    * The major and minor numbers are encoded in dev_t as MMMmmmMm (where
    * letters correspond to bytes).  The encoding of the lower 4 bytes is
    * constrained by compatibility with 16-bit and 32-bit dev_t's.  The
    * encoding of of the upper 4 bytes is the least unnatural one consistent
    * with this and other constraints.  Also, the decoding of the m bytes by
    * minor() is unnatural to maximize compatibility subject to not discarding
    * bits.  The upper m byte is shifted into the position of the lower M byte
    * instead of shifting 3 upper m bytes to close the gap.  Compatibility for
    * minor() is achieved iff the upper m byte is 0.
    */
   #define major(d)        __major(d)
   static __inline int
   __major(dev_t _d)
   {
           return (((_d >> 32) & 0xffffff00) | ((_d >> 8) & 0xff));
   }
   #define minor(d)        __minor(d)
   static __inline int
   __minor(dev_t _d)
   {
           return (((_d >> 24) & 0xff00) | (_d & 0xffff00ff));
   }
   #define makedev(M, m)   __makedev((M), (m))
   static __inline dev_t
   __makedev(int _M, int _m)
   {
           return (((dev_t)(_M & 0xffffff00) << 32) | ((_M & 0xff) << 8) |
               ((dev_t)(_m & 0xff00) << 24) | (_m & 0xffff00ff));
   }
   
   /*
    * 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(int, off_t);
   #endif
   #ifndef _LSEEK_DECLARED
   #define _LSEEK_DECLARED
   off_t    lseek(int, off_t, int);
   #endif
   #ifndef _MMAP_DECLARED
   #define _MMAP_DECLARED
   void *   mmap(void *, size_t, int, int, int, off_t);
   #endif
   #ifndef _TRUNCATE_DECLARED
   #define _TRUNCATE_DECLARED
   int      truncate(const char *, off_t);
   #endif
   __END_DECLS
   #endif /* !_KERNEL */
   
   #endif /* __BSD_VISIBLE */
   
   #endif /* !_SYS_TYPES_H_ */

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