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TYPES(5) TYPES(5) NAME types - primitive system data types SYNOPSIS #include <sys/types.h> DESCRIPTION The data types defined in the include file are used in UNIX system code; some data of these types are accessible to user code: /* Copyright (C) 1991,1992,1994,1995,1996,1997,1998,1999,2000,2001,2002,2006 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ /* * POSIX Standard: 2.6 Primitive System Data Types<sys/types.h> */ #ifndef _SYS_TYPES_H #define _SYS_TYPES_H 1 #include <features.h> __BEGIN_DECLS #include <bits/types.h> #ifdef __USE_BSD # ifndef __u_char_defined typedef __u_char u_char; typedef __u_short u_short; typedef __u_int u_int; typedef __u_long u_long; typedef __quad_t quad_t; typedef __u_quad_t u_quad_t; typedef __fsid_t fsid_t; # define __u_char_defined # endif #endif typedef __loff_t loff_t; #ifndef __ino_t_defined # ifndef __USE_FILE_OFFSET64 typedef __ino_t ino_t; # else typedef __ino64_t ino_t; # endif # define __ino_t_defined #endif #if defined __USE_LARGEFILE64 && !defined __ino64_t_defined typedef __ino64_t ino64_t; # define __ino64_t_defined #endif #ifndef __dev_t_defined typedef __dev_t dev_t; # define __dev_t_defined #endif #ifndef __gid_t_defined typedef __gid_t gid_t; # define __gid_t_defined #endif #ifndef __mode_t_defined typedef __mode_t mode_t; # define __mode_t_defined #endif #ifndef __nlink_t_defined typedef __nlink_t nlink_t; # define __nlink_t_defined #endif #ifndef __uid_t_defined typedef __uid_t uid_t; # define __uid_t_defined #endif #ifndef __off_t_defined # ifndef __USE_FILE_OFFSET64 typedef __off_t off_t; # else typedef __off64_t off_t; # endif # define __off_t_defined #endif #if defined __USE_LARGEFILE64 && !defined __off64_t_defined typedef __off64_t off64_t; # define __off64_t_defined #endif #ifndef __pid_t_defined typedef __pid_t pid_t; # define __pid_t_defined #endif #if (defined __USE_SVID || defined __USE_XOPEN) && !defined __id_t_defined typedef __id_t id_t; # define __id_t_defined #endif #ifndef __ssize_t_defined typedef __ssize_t ssize_t; # define __ssize_t_defined #endif #ifdef __USE_BSD # ifndef __daddr_t_defined typedef __daddr_t daddr_t; typedef __caddr_t caddr_t; # define __daddr_t_defined # endif #endif #if (defined __USE_SVID || defined __USE_XOPEN) && !defined __key_t_defined typedef __key_t key_t; # define __key_t_defined #endif #ifdef __USE_XOPEN # define __need_clock_t #endif #define __need_time_t #define __need_timer_t #define __need_clockid_t #include <time.h> #ifdef __USE_XOPEN # ifndef __useconds_t_defined typedef __useconds_t useconds_t; # define __useconds_t_defined # endif # ifndef __suseconds_t_defined typedef __suseconds_t suseconds_t; # define __suseconds_t_defined # endif #endif #define __need_size_t #include <stddef.h> #ifdef __USE_MISC /* Old compatibility names for C types. */ typedef unsigned long int ulong; typedef unsigned short int ushort; typedef unsigned int uint; #endif /* These size-specific names are used by some of the inet code. */ #if !__GNUC_PREREQ (2, 7) /* These types are defined by the ISO C99 header <inttypes.h>. */ # ifndef __int8_t_defined # define __int8_t_defined typedef char int8_t; typedef short int int16_t; typedef int int32_t; # if __WORDSIZE == 64 typedef long int int64_t; # elif __GLIBC_HAVE_LONG_LONG __extension__ typedef long long int int64_t; # endif # endif /* But these were defined by ISO C without the first ‘_’. */ typedef unsigned char u_int8_t; typedef unsigned short int u_int16_t; typedef unsigned int u_int32_t; # if __WORDSIZE == 64 typedef unsigned long int u_int64_t; # elif __GLIBC_HAVE_LONG_LONG __extension__ typedef unsigned long long int u_int64_t; # endif typedef int register_t; #else /* For GCC 2.7 and later, we can use specific type-size attributes. */ # define __intN_t(N, MODE) typedef int int##N##_t __attribute__ ((__mode__ (MODE))) # define __u_intN_t(N, MODE) typedef unsigned int u_int##N##_t __attribute__ ((__mode__ (MODE))) # ifndef __int8_t_defined # define __int8_t_defined __intN_t (8, __QI__); __intN_t (16, __HI__); __intN_t (32, __SI__); __intN_t (64, __DI__); # endif __u_intN_t (8, __QI__); __u_intN_t (16, __HI__); __u_intN_t (32, __SI__); __u_intN_t (64, __DI__); typedef int register_t __attribute__ ((__mode__ (__word__))); /* Some code from BIND tests this macro to see if the types above are defined. */ #endif #define __BIT_TYPES_DEFINED__1 #ifdef __USE_BSD /* In BSD <sys/types.h> is expected to define BYTE_ORDER. */ # include <endian.h> /* It also defines ‘fd_set’ and the FD_* macros for ‘select’. */ # include <sys/select.h> /* BSD defines these symbols, so we follow. */ # include <sys/sysmacros.h> #endif /* Use BSD. */ #if defined __USE_UNIX98 && !defined __blksize_t_defined typedef __blksize_t blksize_t; # define __blksize_t_defined #endif /* Types from the Large File Support interface. */ #ifndef __USE_FILE_OFFSET64 # ifndef __blkcnt_t_defined typedef __blkcnt_t blkcnt_t; /* Type to count number of disk blocks. */ # define __blkcnt_t_defined # endif # ifndef __fsblkcnt_t_defined typedef __fsblkcnt_t fsblkcnt_t; /* Type to count file system blocks. */ # define __fsblkcnt_t_defined # endif # ifndef __fsfilcnt_t_defined typedef __fsfilcnt_t fsfilcnt_t; /* Type to count file system inodes. */ # define __fsfilcnt_t_defined # endif #else # ifndef __blkcnt_t_defined typedef __blkcnt64_t blkcnt_t; /* Type to count number of disk blocks. */ # define __blkcnt_t_defined # endif # ifndef __fsblkcnt_t_defined typedef __fsblkcnt64_t fsblkcnt_t; /* Type to count file system blocks. */ # define __fsblkcnt_t_defined # endif # ifndef __fsfilcnt_t_defined typedef __fsfilcnt64_t fsfilcnt_t; /* Type to count file system inodes. */ # define __fsfilcnt_t_defined # endif #endif #ifdef __USE_LARGEFILE64 typedef __blkcnt64_t blkcnt64_t; /* Type to count number of disk blocks. */ typedef __fsblkcnt64_t fsblkcnt64_t; /* Type to count file system blocks. */ typedef __fsfilcnt64_t fsfilcnt64_t; /* Type to count file system inodes. */ #endif /* Now add the thread types. */ #if defined __USE_POSIX199506 || defined __USE_UNIX98 # include <bits/pthreadtypes.h> #endif __END_DECLS #endif /* sys/types.h */ The form daddr_t is used for disk addresses except in an i-node on disk, see fs(5). Times are encoded in seconds since 00:00:00 GMT, Jan‐ uary 1, 1970. The major and minor parts of a device code specify kind and unit number of a device and are installation-dependent. Offsets are measured in bytes from the beginning of a file. The label_t vari‐ ables are used to save the processor state while another process is running. SEE ALSO fs(5), time(3), lseek(2), adb(1) 4th Berkeley Distribution May 15, 1985 TYPES(5)
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Generated: 2016-12-26 |
Generated by man2html V0.25
page hit count: 776 |
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