1 /* Minimum guaranteed maximum values for system limits. Linux/Alpha version.
2 Copyright (C) 1993-1998,2000,2002,2003,2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 /* The kernel header pollutes the namespace with the NR_OPEN symbol
21 and defines LINK_MAX although filesystems have different maxima. A
22 similar thing is true for OPEN_MAX: the limit can be changed at
23 runtime and therefore the macro must not be defined. Remove this
24 after including the header if necessary. */
26 # define __undef_NR_OPEN
29 # define __undef_LINK_MAX
32 # define __undef_OPEN_MAX
35 /* The kernel sources contain a file with all the needed information. */
36 #include <linux/limits.h>
38 /* Have to remove NR_OPEN? */
39 #ifdef __undef_NR_OPEN
41 # undef __undef_NR_OPEN
43 /* Have to remove LINK_MAX? */
44 #ifdef __undef_LINK_MAX
46 # undef __undef_LINK_MAX
48 /* Have to remove OPEN_MAX? */
49 #ifdef __undef_OPEN_MAX
51 # undef __undef_OPEN_MAX
54 /* The number of data keys per process. */
55 #define _POSIX_THREAD_KEYS_MAX 128
56 /* This is the value this implementation supports. */
57 #define PTHREAD_KEYS_MAX 1024
59 /* Controlling the iterations of destructors for thread-specific data. */
60 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
61 /* Number of iterations this implementation does. */
62 #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
64 /* The number of threads per process. */
65 #define _POSIX_THREAD_THREADS_MAX 64
66 /* We have no predefined limit on the number of threads. */
67 #undef PTHREAD_THREADS_MAX
69 /* Maximum amount by which a process can descrease its asynchronous I/O
71 #define AIO_PRIO_DELTA_MAX 20
73 /* Minimum size for a thread. We are free to choose a reasonable value. */
74 #define PTHREAD_STACK_MIN 24576
76 /* Maximum number of timer expiration overruns. */
77 #define DELAYTIMER_MAX 2147483647
79 /* Maximum tty name length. */
80 #define TTY_NAME_MAX 32
82 /* Maximum login name length. This is arbitrary. */
83 #define LOGIN_NAME_MAX 256
85 /* Maximum host name length. */
86 #define HOST_NAME_MAX 64