86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
/* Copyright (C) 1991, 92, 94, 95, 96 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#ifndef _GNU_TYPES_H
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#define _GNU_TYPES_H 1
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/* Convenience types. */
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typedef unsigned char __u_char;
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typedef unsigned short __u_short;
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typedef unsigned int __u_int;
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typedef unsigned long __u_long;
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#ifdef __GNUC__
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typedef unsigned long long int __u_quad_t;
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typedef long long int __quad_t;
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typedef __quad_t *__qaddr_t;
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#else
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typedef struct
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{
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long val[2];
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} __quad_t;
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typedef struct
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{
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__u_long val[2];
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} __u_quad_t;
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#endif
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typedef int __dev_t; /* Type of device numbers. */
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typedef unsigned int __uid_t; /* Type of user identifications. */
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typedef unsigned int __gid_t; /* Type of group identifications. */
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typedef unsigned int __ino_t; /* Type of file serial numbers. */
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typedef unsigned int __mode_t; /* Type of file attribute bitmasks. */
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typedef unsigned short int __nlink_t; /* Type of file link counts. */
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typedef long int __off_t; /* Type of file sizes and offsets. */
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typedef int __pid_t; /* Type of process identifications. */
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typedef int __ssize_t; /* Type of a byte count, or error. */
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typedef __u_quad_t __fsid_t; /* Type of file system IDs. */
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typedef long int __clock_t; /* Type of CPU usage counts. */
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/* Everythin' else. */
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typedef long int __daddr_t; /* The type of a disk address. */
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typedef char *__caddr_t;
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typedef long int __time_t;
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typedef long int __swblk_t; /* Type of a swap block maybe? */
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/* fd_set for select. */
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/* Number of descriptors that can fit in an `fd_set'. */
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#define __FD_SETSIZE 256
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/* It's easier to assume 8-bit bytes than to get CHAR_BIT. */
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#define __NFDBITS (sizeof (unsigned long int) * 8)
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#define __FDELT(d) ((d) / __NFDBITS)
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#define __FDMASK(d) (1 << ((d) % __NFDBITS))
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typedef struct
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{
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/* Some braindead old software uses this member name. */
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unsigned long int fds_bits[(__FD_SETSIZE + (__NFDBITS - 1)) / __NFDBITS];
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} __fd_set;
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/* This line MUST be split! Otherwise m4 will not change it. */
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#define __FD_ZERO(set) \
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((void) memset ((__ptr_t) (set), 0, sizeof (fd_set)))
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#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
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#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
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#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
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#endif /* gnu/types.h */
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