local_lim.h
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上传日期:2009-04-28
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- /* Minimum guaranteed maximum values for system limits. Linux version.
- Copyright (C) 1993-1998,2000,2002,2003,2004 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; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
- /* The kernel header pollutes the namespace with the NR_OPEN symbol
- and defines LINK_MAX although filesystems have different maxima. A
- similar thing is true for OPEN_MAX: the limit can be changed at
- runtime and therefore the macro must not be defined. Remove this
- after including the header if necessary. */
- #ifndef NR_OPEN
- # define __undef_NR_OPEN
- #endif
- #ifndef LINK_MAX
- # define __undef_LINK_MAX
- #endif
- #ifndef OPEN_MAX
- # define __undef_OPEN_MAX
- #endif
- /* The kernel sources contain a file with all the needed information. */
- #include <linux/limits.h>
- /* Have to remove NR_OPEN? */
- #ifdef __undef_NR_OPEN
- # undef NR_OPEN
- # undef __undef_NR_OPEN
- #endif
- /* Have to remove LINK_MAX? */
- #ifdef __undef_LINK_MAX
- # undef LINK_MAX
- # undef __undef_LINK_MAX
- #endif
- /* Have to remove OPEN_MAX? */
- #ifdef __undef_OPEN_MAX
- # undef OPEN_MAX
- # undef __undef_OPEN_MAX
- #endif
- /* The number of data keys per process. */
- #define _POSIX_THREAD_KEYS_MAX 128
- /* This is the value this implementation supports. */
- #define PTHREAD_KEYS_MAX 1024
- /* Controlling the iterations of destructors for thread-specific data. */
- #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
- /* Number of iterations this implementation does. */
- #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
- /* The number of threads per process. */
- #define _POSIX_THREAD_THREADS_MAX 64
- /* This is the value this implementation supports. */
- #define PTHREAD_THREADS_MAX 16384
- /* Maximum amount by which a process can descrease its asynchronous I/O
- priority level. */
- #define AIO_PRIO_DELTA_MAX 20
- /* Minimum size for a thread. We are free to choose a reasonable value. */
- #define PTHREAD_STACK_MIN 16384
- /* Maximum number of POSIX timers available. */
- #define TIMER_MAX 256
- /* Maximum number of timer expiration overruns. */
- #define DELAYTIMER_MAX 2147483647
- /* Maximum tty name length. */
- #define TTY_NAME_MAX 32
- /* Maximum login name length. This is arbitrary. */
- #define LOGIN_NAME_MAX 256
- /* Maximum host name length. */
- #define HOST_NAME_MAX 64
- /* Maximum message queue priority level. */
- #define MQ_PRIO_MAX 32768