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Diffstat (limited to 'posix/bits/posix1_lim.h')
| -rw-r--r-- | posix/bits/posix1_lim.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/posix/bits/posix1_lim.h b/posix/bits/posix1_lim.h new file mode 100644 index 0000000000..29d1acf947 --- /dev/null +++ b/posix/bits/posix1_lim.h @@ -0,0 +1,108 @@ +/* Copyright (C) 1991, 1992, 1993, 1996 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* + * 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 + + +/* These are the standard-mandated minimum values. */ + +/* Maximum length of arguments to `execve', including environment. */ +#define _POSIX_ARG_MAX 4096 + +/* Maximum simultaneous processes per real user ID. */ +#define _POSIX_CHILD_MAX 6 + +/* Maximum link count of a file. */ +#define _POSIX_LINK_MAX 8 + +/* 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 + +/* Number of simultaneous supplementary group IDs per process. */ +#define _POSIX_NGROUPS_MAX 0 + +/* Number of files one process can have open at once. */ +#define _POSIX_OPEN_MAX 16 + +/* Number of descriptors that a process may examine with `pselect' or + `select'. */ +#define _POSIX_FD_SETSIZE _POSIX_OPEN_MAX + +/* Number of bytes in a filename. */ +#define _POSIX_NAME_MAX 14 + +/* Number of bytes in a pathname. */ +#define _POSIX_PATH_MAX 255 + +/* Number of bytes than can be written atomically to a pipe. */ +#define _POSIX_PIPE_BUF 512 + +/* 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 + +/* Maximum length of a timezone name (element of `tzname'). */ +#define _POSIX_TZNAME_MAX 3 + +/* 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 + +/* Maximum number of characters in a tty name. */ +#define _POSIX_TTY_NAME_MAX 9 + +/* Maximum length of login name. */ +#define _POSIX_LOGIN_NAME_MAX 9 + + +/* Get the implementation-specific values for the above. */ +#include <bits/local_lim.h> + + +#ifndef SSIZE_MAX +#define SSIZE_MAX INT_MAX +#endif + + +/* This value is a guaranteed minimum maximum. + The current maximum can be got from `sysconf'. */ + +#ifndef NGROUPS_MAX +#define NGROUPS_MAX _POSIX_NGROUPS_MAX +#endif + +#endif /* bits/posix1_lim.h */ |