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/* Copyright (C) 1991-2018 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, see
<http://www.gnu.org/licenses/>. */
/*
* POSIX Standard: 2.9.2 Minimum Values Added to <limits.h>
*
* Never include this file directly; use <limits.h> instead.
*/
#ifndef _BITS_POSIX1_LIM_H
#define _BITS_POSIX1_LIM_H 1
#include <bits/wordsize.h>
/* These are the standard-mandated minimum values. */
/* Minimum number of operations in one list I/O call. */
#define _POSIX_AIO_LISTIO_MAX 2
/* Minimal number of outstanding asynchronous I/O operations. */
#define _POSIX_AIO_MAX 1
/* Maximum length of arguments to `execve', including environment. */
#define _POSIX_ARG_MAX 4096
/* Maximum simultaneous processes per real user ID. */
#ifdef __USE_XOPEN2K
# define _POSIX_CHILD_MAX 25
#else
# define _POSIX_CHILD_MAX 6
#endif
/* Minimal number of timer expiration overruns. */
#define _POSIX_DELAYTIMER_MAX 32
/* Maximum length of a host name (not including the terminating null)
as returned from the GETHOSTNAME function. */
#define _POSIX_HOST_NAME_MAX 255
/* Maximum link count of a file. */
#define _POSIX_LINK_MAX 8
/* Maximum length of login name. */
#define _POSIX_LOGIN_NAME_MAX 9
/* Number of bytes in a terminal canonical input queue. */
#define _POSIX_MAX_CANON 255
/* Number of bytes for which space will be
available in a terminal input queue. */
#define _POSIX_MAX_INPUT 255
/* Maximum number of message queues open for a process. */
#define _POSIX_MQ_OPEN_MAX 8
/* Maximum number of supported message priorities. */
#define _POSIX_MQ_PRIO_MAX 32
/* Number of bytes in a filename. */
#define _POSIX_NAME_MAX 14
/* Number of simultaneous supplementary group IDs per process. */
#ifdef __USE_XOPEN2K
# define _POSIX_NGROUPS_MAX 8
#else
# define _POSIX_NGROUPS_MAX 0
#endif
/* Number of files one process can have open at once. */
#ifdef __USE_XOPEN2K
# define _POSIX_OPEN_MAX 20
#else
# define _POSIX_OPEN_MAX 16
#endif
#if !defined __USE_XOPEN2K || defined __USE_GNU
/* Number of descriptors that a process may examine with `pselect' or
`select'. */
# define _POSIX_FD_SETSIZE _POSIX_OPEN_MAX
#endif
/* Number of bytes in a pathname. */
#define _POSIX_PATH_MAX 256
/* Number of bytes than can be written atomically to a pipe. */
#define _POSIX_PIPE_BUF 512
/* The number of repeated occurrences of a BRE permitted by the
REGEXEC and REGCOMP functions when using the interval notation. */
#define _POSIX_RE_DUP_MAX 255
/* Minimal number of realtime signals reserved for the application. */
#define _POSIX_RTSIG_MAX 8
/* Number of semaphores a process can have. */
#define _POSIX_SEM_NSEMS_MAX 256
/* Maximal value of a semaphore. */
#define _POSIX_SEM_VALUE_MAX 32767
/* Number of pending realtime signals. */
#define _POSIX_SIGQUEUE_MAX 32
/* Largest value of a `ssize_t'. */
#define _POSIX_SSIZE_MAX 32767
/* Number of streams a process can have open at once. */
#define _POSIX_STREAM_MAX 8
/* The number of bytes in a symbolic link. */
#define _POSIX_SYMLINK_MAX 255
/* The number of symbolic links that can be traversed in the
resolution of a pathname in the absence of a loop. */
#define _POSIX_SYMLOOP_MAX 8
/* Number of timer for a process. */
#define _POSIX_TIMER_MAX 32
/* Maximum number of characters in a tty name. */
#define _POSIX_TTY_NAME_MAX 9
/* Maximum length of a timezone name (element of `tzname'). */
#ifdef __USE_XOPEN2K
# define _POSIX_TZNAME_MAX 6
#else
# define _POSIX_TZNAME_MAX 3
#endif
#if !defined __USE_XOPEN2K || defined __USE_GNU
/* Maximum number of connections that can be queued on a socket. */
# define _POSIX_QLIMIT 1
/* Maximum number of bytes that can be buffered on a socket for send
or receive. */
# define _POSIX_HIWAT _POSIX_PIPE_BUF
/* Maximum number of elements in an `iovec' array. */
# define _POSIX_UIO_MAXIOV 16
#endif
/* Maximum clock resolution in nanoseconds. */
#define _POSIX_CLOCKRES_MIN 20000000
/* Get the implementation-specific values for the above. */
#include <bits/local_lim.h>
#ifndef SSIZE_MAX
/* ssize_t is not formally required to be the signed type
corresponding to size_t, but it is for all configurations supported
by glibc. */
# if __WORDSIZE == 64 || __WORDSIZE32_SIZE_ULONG
# define SSIZE_MAX LONG_MAX
# else
# define SSIZE_MAX INT_MAX
# endif
#endif
/* This value is a guaranteed minimum maximum.
The current maximum can be got from `sysconf'. */
#ifndef NGROUPS_MAX
# define NGROUPS_MAX 8
#endif
#endif /* bits/posix1_lim.h */