841339f07f
NetBSD's PTHREAD_KEYS_MAX is set to 256, which is low compared to other systems like Linux (1024) or MacOS X (512). As a result some setups tested on Linux will exhibit problems on NetBSD because of pthread_keys usage beyond the limit. This happens for instance on Apache with various module loaded, and in this case no particular developper can be blamed for going beyond the limit, since several modules from different sources contribute to the problem. This patch makes the limit conigurable through the PTHREAD_KEYS_MAX environement variable. If undefined, the default remains unchanged (256). In any case, the value cannot be lowered below POSIX-mandated _POSIX_THREAD_KEYS_MAX (128). While there: - use EXIT_FAILURE instead of 1 when calling err(3) in libpthread. - Reset _POSIX_THREAD_KEYS_MAX to POSIX mandated 128, instead of 256.
165 lines
5.0 KiB
C
165 lines
5.0 KiB
C
/* $NetBSD: limits.h,v 1.34 2015/05/29 07:37:31 manu Exp $ */
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/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)limits.h 8.2 (Berkeley) 1/4/94
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*/
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#ifndef _LIMITS_H_
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#define _LIMITS_H_
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#include <sys/featuretest.h>
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#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
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defined(_NETBSD_SOURCE)
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#define _POSIX_AIO_LISTIO_MAX 2
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#define _POSIX_AIO_MAX 1
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#define _POSIX_ARG_MAX 4096
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#define _POSIX_CHILD_MAX 25
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#define _POSIX_HOST_NAME_MAX 255
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#define _POSIX_LINK_MAX 8
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#define _POSIX_LOGIN_NAME_MAX 9
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#define _POSIX_MAX_CANON 255
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#define _POSIX_MAX_INPUT 255
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#define _POSIX_MQ_OPEN_MAX 8
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#define _POSIX_MQ_PRIO_MAX 32
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#define _POSIX_NAME_MAX 14
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#define _POSIX_NGROUPS_MAX 8
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#define _POSIX_OPEN_MAX 20
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#define _POSIX_PATH_MAX 256
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#define _POSIX_PIPE_BUF 512
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#define _POSIX_RE_DUP_MAX 255
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#define _POSIX_SSIZE_MAX 32767
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#define _POSIX_STREAM_MAX 8
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#define _POSIX_SYMLINK_MAX 255
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#define _POSIX_SYMLOOP_MAX 8
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/*
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* We have not implemented these yet
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*
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* _POSIX_THREAD_ATTR_STACKADDR
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* _POSIX_THREAD_ATTR_STACKSIZE
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* _POSIX_THREAD_CPUTIME
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* _POSIX_THREAD_PRIORITY_SCHEDULING
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* _POSIX_THREAD_PRIO_INHERIT
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* _POSIX_THREAD_PRIO_PROTECT
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* _POSIX_THREAD_PROCESS_SHARED
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* _POSIX_THREAD_SAFE_FUNCTIONS
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* _POSIX_THREAD_SPORADIC_SERVER
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*/
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/*
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* The following 3 are defined in
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* Open Group Base Specifications Issue 7
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*/
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#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
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#define _POSIX_THREAD_KEYS_MAX 128
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#define _POSIX_THREAD_THREADS_MAX 64
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/*
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* These are the correct names, defined in terms of the above
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* except for PTHREAD_KEYS_MAX which is bigger than standard
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* mandated minimum value _POSIX_THREAD_KEYS_MAX.
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*/
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#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
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#define PTHREAD_KEYS_MAX 256
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/* Not yet: PTHREAD_STACK_MIN */
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#define PTHREAD_THREADS_MAX _POSIX_THREAD_THREADS_MAX
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#define _POSIX_TIMER_MAX 32
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#define _POSIX_TTY_NAME_MAX 9
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#define _POSIX_TZNAME_MAX 6
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#define _POSIX2_BC_BASE_MAX 99
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#define _POSIX2_BC_DIM_MAX 2048
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#define _POSIX2_BC_SCALE_MAX 99
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#define _POSIX2_BC_STRING_MAX 1000
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#define _POSIX2_CHARCLASS_NAME_MAX 14
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#define _POSIX2_COLL_WEIGHTS_MAX 2
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#define _POSIX2_EXPR_NEST_MAX 32
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#define _POSIX2_LINE_MAX 2048
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#define _POSIX2_RE_DUP_MAX 255
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/*
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* X/Open CAE Specifications,
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* adopted in IEEE Std 1003.1-2001 XSI.
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*/
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#if (_POSIX_C_SOURCE - 0) >= 200112L || defined(_XOPEN_SOURCE) || \
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defined(_NETBSD_SOURCE)
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#define _XOPEN_IOV_MAX 16
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#define _XOPEN_NAME_MAX 256
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#define _XOPEN_PATH_MAX 1024
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#define PASS_MAX 128 /* Legacy */
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#define CHARCLASS_NAME_MAX 14
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#define NL_ARGMAX 9
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#define NL_LANGMAX 14
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#define NL_MSGMAX 32767
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#define NL_NMAX 1
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#define NL_SETMAX 255
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#define NL_TEXTMAX 2048
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/* IEEE Std 1003.1-2001 TSF */
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#define _GETGR_R_SIZE_MAX 1024
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#define _GETPW_R_SIZE_MAX 1024
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/* Always ensure that this is consistent with <stdio.h> */
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#ifndef TMP_MAX
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#define TMP_MAX 308915776 /* Legacy */
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#endif
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#endif /* _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE || _NETBSD_SOURCE */
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#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
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#define MB_LEN_MAX 32 /* Allow ISO/IEC 2022 */
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/*
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* X/Open Extended API set 2 (a.k.a. C063)
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* This hides unimplemented functions from GNU configure until
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* we are done implementing them.
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*/
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#if !defined(_INCOMPLETE_XOPEN_C063)
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#define __stub_fexecve
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#endif
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#include <machine/limits.h>
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#ifdef __CHAR_UNSIGNED__
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# define CHAR_MIN 0
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# define CHAR_MAX UCHAR_MAX
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#else
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# define CHAR_MIN SCHAR_MIN
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# define CHAR_MAX SCHAR_MAX
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#endif
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#include <sys/syslimits.h>
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#endif /* !_LIMITS_H_ */
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