sysdeps/unix/sysv/linux/bits/types.h

   1 /* Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 /*
  20  * Never include this file directly; use <sys/types.h> instead.
  21  */
  22
  23 #ifndef _BITS_TYPES_H
  24 #define _BITS_TYPES_H   1
  25
  26 #include <features.h>
  27
  28 /* Convenience types.  */
  29 typedef unsigned char __u_char;
  30 typedef unsigned short __u_short;
  31 typedef unsigned int __u_int;
  32 typedef unsigned long __u_long;
  33 #ifdef __GNUC__
  34 typedef unsigned long long int __u_quad_t;
  35 typedef long long int __quad_t;
  36 #else
  37 typedef struct
  38   {
  39     long int __val[2];
  40   } __quad_t;
  41 typedef struct
  42   {
  43     __u_long __val[2];
  44   } __u_quad_t;
  45 #endif
  46 typedef signed char __int8_t;
  47 typedef unsigned char __uint8_t;
  48 typedef signed short int __int16_t;
  49 typedef unsigned short int __uint16_t;
  50 typedef signed int __int32_t;
  51 typedef unsigned int __uint32_t;
  52 #ifdef __GNUC__
  53 typedef signed long long int __int64_t;
  54 typedef unsigned long long int __uint64_t;
  55 #endif
  56 typedef __quad_t *__qaddr_t;
  57
  58 typedef __u_quad_t __dev_t;             /* Type of device numbers.  */
  59 typedef __u_int __uid_t;                /* Type of user identifications.  */
  60 typedef __u_int __gid_t;                /* Type of group identifications.  */
  61 typedef __u_long __ino_t;               /* Type of file serial numbers.  */
  62 typedef __u_int __mode_t;               /* Type of file attribute bitmasks.  */
  63 typedef __u_int __nlink_t;              /* Type of file link counts.  */
  64 typedef long int __off_t;               /* Type of file sizes and offsets.  */
  65 typedef __quad_t __loff_t;              /* Type of file sizes and offsets.  */
  66 typedef int __pid_t;                    /* Type of process identifications.  */
  67 typedef int __ssize_t;                  /* Type of a byte count, or error.  */
  68 typedef long int __rlim_t;              /* Type of resource counts.  */
  69 typedef __quad_t __rlim64_t;            /* Type of resource counts (LFS).  */
  70
  71 typedef struct
  72   {
  73     int __val[2];
  74   } __fsid_t;                           /* Type of file system IDs.  */
  75
  76 /* Everythin' else.  */
  77 typedef int __daddr_t;                  /* The type of a disk address.  */
  78 typedef char *__caddr_t;
  79 typedef long int __time_t;
  80 typedef long int __swblk_t;             /* Type of a swap block maybe?  */
  81 \f
  82 typedef long int __clock_t;
  83
  84 /* One element in the file descriptor mask array.  */
  85 typedef unsigned long int __fd_mask;
  86
  87 /* Number of descriptors that can fit in an `fd_set'.  */
  88 #define __FD_SETSIZE    1024
  89
  90 /* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */
  91 #define __NFDBITS       (8 * sizeof (__fd_mask))
  92 #define __FDELT(d)      ((d) / __NFDBITS)
  93 #define __FDMASK(d)     (1 << ((d) % __NFDBITS))
  94
  95 /* fd_set for select and pselect.  */
  96 typedef struct
  97   {
  98     /* XPG4.2 requires this member name.  */
  99     __fd_mask fds_bits[__FD_SETSIZE / __NFDBITS];
 100   } __fd_set;
 101
 102
 103 typedef int __key_t;
 104
 105
 106 /* Types from the Large File Support interface.  */
 107
 108 /* Type to count number os disk blocks.  */
 109 typedef __u_long __blkcnt_t;
 110 typedef __u_quad_t __blkcnt64_t;
 111
 112 /* Type to count file system blocks.  */
 113 typedef long int __fsblkcnt_t;
 114 typedef __quad_t __fsblkcnt64_t;
 115
 116 /* Type to count file system inodes.  */
 117 typedef __u_long __fsfilcnt_t;
 118 typedef __u_quad_t __fsfilcnt64_t;
 119
 120 /* Type of file serial numbers.  */
 121 typedef __u_long __ino64_t;
 122
 123 /* Type of file sizes and offsets.  */
 124 typedef __loff_t __off64_t;
 125
 126 #endif /* bits/types.h */