sysdeps/generic/gnu/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 #ifndef _GNU_TYPES_H
  20
  21 #define _GNU_TYPES_H    1
  22
  23
  24 /* Convenience types.  */
  25 typedef unsigned char __u_char;
  26 typedef unsigned short __u_short;
  27 typedef unsigned int __u_int;
  28 typedef unsigned long __u_long;
  29 #ifdef __GNUC__
  30 typedef unsigned long long int __u_quad_t;
  31 typedef long long int __quad_t;
  32 #else
  33 typedef struct
  34 {
  35   long __val[2];
  36 } __quad_t;
  37 typedef struct
  38 {
  39   __u_long __val[2];
  40 } __u_quad_t;
  41 #endif
  42 typedef __quad_t *__qaddr_t;
  43 typedef int __dev_t;            /* Type of device numbers.  */
  44 typedef unsigned int __uid_t;   /* Type of user identifications.  */
  45 typedef unsigned int __gid_t;   /* Type of group identifications.  */
  46 typedef unsigned int __ino_t;   /* Type of file serial numbers.  */
  47 typedef unsigned int __mode_t;  /* Type of file attribute bitmasks.  */
  48 typedef unsigned short int __nlink_t; /* Type of file link counts.  */
  49 typedef long int __off_t;       /* Type of file sizes and offsets.  */
  50 typedef __quad_t __loff_t;      /* Type of file sizes and offsets.  */
  51 typedef int __pid_t;            /* Type of process identifications.  */
  52 typedef int __ssize_t;          /* Type of a byte count, or error.  */
  53 typedef __u_quad_t __fsid_t;    /* Type of file system IDs.  */
  54 typedef long int __clock_t;     /* Type of CPU usage counts.  */
  55
  56 /* Everythin' else.  */
  57 typedef long int __daddr_t;     /* The type of a disk address.  */
  58 typedef char *__caddr_t;
  59 typedef long int __time_t;
  60 typedef long int __swblk_t;     /* Type of a swap block maybe?  */
  61 typedef long int __key_t;       /* Type of an IPC key */
  62 \f
  63 /* fd_set for select.  */
  64
  65 /* Number of descriptors that can fit in an `fd_set'.  */
  66 #define __FD_SETSIZE    256
  67
  68 /* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */
  69 #define __NFDBITS       (sizeof (unsigned long int) * 8)
  70 #define __FDELT(d)      ((d) / __NFDBITS)
  71 #define __FDMASK(d)     ((unsigned long int) 1 << ((d) % __NFDBITS))
  72
  73 typedef struct
  74   {
  75     /* XPG4.2 requires this member name.  */
  76     unsigned long int fds_bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
  77   } __fd_set;
  78
  79 typedef unsigned long int __fd_mask;
  80
  81 #endif /* gnu/types.h */