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local_lim.h
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/* Minimum guaranteed maximum values for system limits. Linux version. Copyright (C) 1993-2018 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; see the file COPYING.LIB. If not, see <http://www.gnu.org/licenses/>. */ /* 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 #ifndef ARG_MAX # define __undef_ARG_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 /* Have to remove ARG_MAX? */ #ifdef __undef_ARG_MAX # undef ARG_MAX # undef __undef_ARG_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 /* We have no predefined limit on the number of threads. */ #undef PTHREAD_THREADS_MAX /* 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 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 /* Maximum value the semaphore can have. */ #define SEM_VALUE_MAX (2147483647)