bits/types.h

   1 /* Copyright (C) 1991, 92, 94, 95, 96, 97, 98 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 #define __need_size_t
  29 #include <stddef.h>
  30
  31 /* Convenience types.  */
  32 typedef unsigned char __u_char;
  33 typedef unsigned short __u_short;
  34 typedef unsigned int __u_int;
  35 typedef unsigned long __u_long;
  36 #ifdef __GNUC__
  37 typedef unsigned long long int __u_quad_t;
  38 typedef long long int __quad_t;
  39 #else
  40 typedef struct
  41 {
  42   long __val[2];
  43 } __quad_t;
  44 typedef struct
  45 {
  46   __u_long __val[2];
  47 } __u_quad_t;
  48 #endif
  49 typedef signed char __int8_t;
  50 typedef unsigned char __uint8_t;
  51 typedef signed short int __int16_t;
  52 typedef unsigned short int __uint16_t;
  53 typedef signed int __int32_t;
  54 typedef unsigned int __uint32_t;
  55 #ifdef __GNUC__
  56 typedef signed long long int __int64_t;
  57 typedef unsigned long long int __uint64_t;
  58 #endif
  59 typedef __quad_t *__qaddr_t;
  60
  61 typedef int __dev_t;            /* Type of device numbers.  */
  62 typedef unsigned int __uid_t;   /* Type of user identifications.  */
  63 typedef unsigned int __gid_t;   /* Type of group identifications.  */
  64 typedef unsigned int __ino_t;   /* Type of file serial numbers.  */
  65 typedef __quad_t __ino64_t;     /* Type of file serial numbers (LFS).  */
  66 typedef unsigned int __mode_t;  /* Type of file attribute bitmasks.  */
  67 typedef unsigned short int __nlink_t; /* Type of file link counts.  */
  68 typedef long int __off_t;       /* Type of file sizes and offsets.  */
  69 typedef __quad_t __loff_t;      /* Type of file sizes and offsets.  */
  70 typedef __loff_t __off64_t;     /* Type of file sizes and offsets (LFS).  */
  71 typedef int __pid_t;            /* Type of process identifications.  */
  72 typedef int __ssize_t;          /* Type of a byte count, or error.  */
  73 typedef __u_quad_t __fsid_t;    /* Type of file system IDs.  */
  74 typedef long int __clock_t;     /* Type of CPU usage counts.  */
  75 typedef long int __rlim_t;      /* Type for resource measurement.  */
  76 typedef __quad_t __rlim64_t;    /* Type for resource measurement (LFS).  */
  77 typedef unsigned int __id_t;    /* General type for IDs.  */
  78
  79 /* Everythin' else.  */
  80 typedef long int __daddr_t;     /* The type of a disk address.  */
  81 typedef char *__caddr_t;
  82 typedef long int __time_t;
  83 typedef long int __swblk_t;     /* Type of a swap block maybe?  */
  84 typedef long int __key_t;       /* Type of an IPC key */
  85 \f
  86
  87 /* One element in the file descriptor mask array.  */
  88 typedef unsigned long int __fd_mask;
  89
  90 /* Number of descriptors that can fit in an `fd_set'.  */
  91 #define __FD_SETSIZE    256
  92
  93 /* It's easier to assume 8-bit bytes than to get CHAR_BIT.  */
  94 #define __NFDBITS       (sizeof (unsigned long int) * 8)
  95 #define __FDELT(d)      ((d) / __NFDBITS)
  96 #define __FDMASK(d)     ((__fd_mask) 1 << ((d) % __NFDBITS))
  97
  98 /* fd_set for select and pselect.  */
  99 typedef struct
 100   {
 101     /* XPG4.2 requires this member name.  Otherwise avoid the name
 102        from the user namespace.  */
 103 #ifdef __USE_XOPEN
 104     __fd_mask fds_bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
 105 # define __FDS_BITS(set) ((set)->fds_bits)
 106 #else
 107     __fd_mask __fds_bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
 108 # define __FDS_BITS(set) ((set)->__fds_bits)
 109 #endif
 110   } __fd_set;
 111
 112 /* XXX Used in `struct shmid_ds'.  */
 113 typedef unsigned short int __ipc_pid_t;
 114
 115
 116 /* Types from the Large File Support interface.  */
 117
 118 /* Type to count number os disk blocks.  */
 119 typedef long int __blkcnt_t;
 120 typedef __quad_t __blkcnt64_t;
 121
 122 /* Type to count file system blocks.  */
 123 typedef unsigned int __fsblkcnt_t;
 124 typedef __u_quad_t __fsblkcnt64_t;
 125
 126 /* Type to count file system inodes.  */
 127 typedef unsigned long int __fsfilcnt_t;
 128 typedef __u_quad_t __fsfilcnt64_t;
 129
 130 /* Used in XTI.  */
 131 typedef int __t_scalar_t;
 132 typedef unsigned int __t_uscalar_t;
 133
 134 /* Duplicates info from stdint.h but this is used in unistd.h.  */
 135 typedef long int __intptr_t;
 136
 137 #endif /* bits/types.h */