/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* bos72F src/bos/kernel/sys/limits.h 1.103.4.4 */
/* */
/* Licensed Materials - Property of IBM */
/* */
/* COPYRIGHT International Business Machines Corp. 1985,2017 */
/* All Rights Reserved */
/* */
/* US Government Users Restricted Rights - Use, duplication or */
/* disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */
/* */
/* IBM_PROLOG_END_TAG */
/* @(#)85 1.103.4.4 src/bos/kernel/sys/limits.h, incstd, bos72F, f2017_22A6 5/18/17 00:17:24 */
/*
* COMPONENT_NAME: (INCSTD) Standard Include Files
*
* FUNCTIONS:
*
* ORIGINS: 27
*
* (C) COPYRIGHT International Business Machines Corp. 1985, 1995
* All Rights Reserved
* Licensed Materials - Property of IBM
*
* US Government Users Restricted Rights - Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*/
#ifndef _H_LIMITS
#define _H_LIMITS
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _H_STANDARDS
#include <standards.h>
#endif
/*
*
* The ANSI and POSIX standards require that certain values be in limits.h.
* They also require that if _ANSI_C_SOURCE or _POSIX_SOURCE is
* defined then ONLY those standard specific values are present.
* This header includes all the ANSI and POSIX required entries.
* In addition other entries for the AIX system are included.
*
*/
#ifdef _ANSI_C_SOURCE
/* C LANGUAGE LIMITS */
#define CHAR_BIT (8)
#if defined(_CHAR_SIGNED)
#define CHAR_MAX 127
#define CHAR_MIN (-128)
#else
#define CHAR_MAX UCHAR_MAX
#define CHAR_MIN (0)
#endif /* _CHAR_SIGNED */
#define INT_MAX (2147483647)
#define INT_MIN (-INT_MAX - 1)
#ifdef __64BIT__
#define LONG_MAX (9223372036854775807L)
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX (18446744073709551615UL)
#else /* __64BIT__ */
#define LONG_MAX (2147483647L)
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX (4294967295UL)
#endif /* __64BIT__ */
#ifdef _ISOC99_SOURCE
#if defined(_LONG_LONG) || defined(__64BIT__)
#define LLONG_MAX (9223372036854775807LL)
#define LLONG_MIN (-9223372036854775807LL -1LL)
#define ULLONG_MAX (18446744073709551615ULL)
#else
#define LLONG_MAX LONG_MAX
#define LLONG_MIN LONG_MIN
#define ULLONG_MAX ULONG_MAX
#endif
#endif /* _ISOC99_SOURCE */
#define SCHAR_MAX (127)
#define SCHAR_MIN (-SCHAR_MAX - 1)
#define SHRT_MAX (32767)
#define SHRT_MIN (-SHRT_MAX - 1)
#define UCHAR_MAX (255)
#define UINT_MAX (4294967295U)
#define USHRT_MAX (65535)
#define MB_LEN_MAX 4 /* maximum bytes in multibyte char */
#endif /* _ANSI_C_SOURCE */
#ifdef _POSIX_SOURCE
/*
* The following are values that have historically been in limits.h.
*
* They are a part of the POSIX defined limits.h and therefore are
* included when _POSIX_SOURCE is defined.
*
*/
/* limits on a system conforming to the POSIX standard */
#define _POSIX_ARG_MAX 4096
#define _POSIX_CHILD_MAX 25
#define _POSIX_HOST_NAME_MAX 255
#define _POSIX_SYMLINK_MAX 255
#define _POSIX_SYMLOOP_MAX 8
#define _POSIX_LINK_MAX 8
#define _POSIX_MAX_CANON 255
#define _POSIX_NAME_MAX 14
#define _POSIX_NGROUPS_MAX 8
#define _POSIX_MAX_INPUT 255
#define _POSIX_OPEN_MAX 20
#define _POSIX_PATH_MAX 256
#define _POSIX_PIPE_BUF 512
#define _POSIX_SSIZE_MAX 32767
#define _POSIX_STREAM_MAX 8
#define _POSIX_THREAD_KEYS_MAX 128
#if defined(_ALL_SOURCE)
#define _POSIX_THREAD_DATAKEYS_MAX _POSIX_THREAD_KEYS_MAX
#endif
#define _POSIX_THREAD_THREADS_MAX 64
#define _POSIX_TZNAME_MAX 6
#define _POSIX_LOGIN_NAME_MAX 9
#define _POSIX_TTY_NAME_MAX 9
#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
#define _POSIX_CLOCKRES_MIN 20000000
#define _POSIX_AIO_LISTIO_MAX 2
#define _POSIX_AIO_MAX 1
#define _POSIX_DELAYTIMER_MAX 32
#define _POSIX_MQ_OPEN_MAX 8
#define _POSIX_MQ_PRIO_MAX 32
#define _POSIX_RTSIG_MAX 8
#define _POSIX_SEM_NSEMS_MAX 256
#define _POSIX_SEM_VALUE_MAX 32767
#define _POSIX_SIGQUEUE_MAX 32
#define _POSIX_TIMER_MAX 32
/* posix trace */
#define _POSIX_TRACE_NAME_MAX 8
#define _POSIX_TRACE_EVENT_NAME_MAX 30
#define _POSIX_TRACE_SYS_MAX 8
#define _POSIX_TRACE_USER_EVENT_MAX 32
/* The system supports the following utility limit minimum values */
#define _POSIX2_BC_BASE_MAX 99 /* max ibase and obase values for bc */
#define _POSIX2_BC_DIM_MAX 2048 /* max num elements in array for bc */
#define _POSIX2_BC_SCALE_MAX 99 /* max scale value allowed by bc */
#define _POSIX2_BC_STRING_MAX 1000 /* max len of string constant by bc */
#define _POSIX2_EQUIV_CLASS_MAX 2 /* this define is obsolete */
#define _POSIX2_COLL_WEIGHTS_MAX 2 /* max num weight for LC_COLLATE order */
#define _POSIX2_EXPR_NEST_MAX 32 /* max num expression nested for expr */
#define _POSIX2_LINE_MAX 2048 /* max len of utility input line */
#define _POSIX2_RE_DUP_MAX 255 /* max num repeated reg for interval not */
#if (_POSIX_C_SOURCE >= 200112L)
#define _POSIX2_CHARCLASS_NAME_MAX 14
#define _POSIX_RE_DUP_MAX 255
#endif
/* The system supports the following symbolic utility limits */
#define BC_BASE_MAX _POSIX2_BC_BASE_MAX
#define BC_DIM_MAX _POSIX2_BC_DIM_MAX
#define BC_SCALE_MAX _POSIX2_BC_SCALE_MAX
#define BC_STRING_MAX 2048
#define EQUIV_CLASS_MAX 4 /* EQUIV_CLASS_MAX is obsolete */
#define COLL_WEIGHTS_MAX 4
#define EXPR_NEST_MAX _POSIX2_EXPR_NEST_MAX
#define LINE_MAX _POSIX2_LINE_MAX
#ifndef RE_DUP_MAX /* NLregexp.h */
#define RE_DUP_MAX _POSIX2_RE_DUP_MAX
#endif /* RE_DUP_MAX */
/* RUN-TIME INVARIANT VALUES
The system supports the following fixed magnitude limitations.
*/
#define MAX_INPUT 512 /* max bytes in terminal
input queue, >= 256+64 */
#define NGROUPS_MAX 2048 /* max number of supplementary group IDs
per process, >= 0 */
#define SSIZE_MAX LONG_MAX /* largest value of ssize_t: LONG_MAX */
#define _SSIZE_MAX LONG_MAX /* largest value of ssize_t: LONG_MAX */
/* The following values will be undefined if the system supports a value that
is equal or greater than the stated minimum AND the supported value is
indeterminate (e.g. dependent on memory space).
On AIX, this includes ARG_MAX and CHILD_MAX. (But if _ALL_SOURCE is
used, these are defined with their default values).
*/
#ifdef _ALL_SOURCE
/*
* Max length of arguments for exec() in bytes, including environ data, >= 4096.
*/
/* ARG_MAX and NCARGS values are user configurable. The definition given in this file
is just the default one and doesn't necessarily match the running system. The application
should query the supported size using sysconf(_SC_ARG_MAX) and dynamically allocate size.
Static allocation of ARG_MAX & NCARGS values should be avoided. */
#define ARG_MAX 1048576
#define CHILD_MAX 128 /* maximum processes per uid */
#endif /* _ALL_SOURCE */
#define MAX_CANON 256 /* max bytes in a terminal canonical
input line, >= 256 */
#define OPEN_MAX 65534 /* max num of files per process */
#define STREAM_MAX 32767 /* This value MUST be the same as
FOPEN_MAX in stdio.h */
#define PTHREAD_KEYS_MAX 450 /* MUST be the same as PTHREAD_KEYS_MAX
computed in pthread.h */
#ifdef _LARGE_THREADS
#define PTHREAD_THREADS_MAX 32767
#else
#define PTHREAD_THREADS_MAX 512 /* MUST be the same as
PTHREAD_THREADS_MAX in pthread.h */
#endif /* _LARGE_THREADS */
#ifdef _ALL_SOURCE
#define PTHREAD_DATAKEYS_MAX PTHREAD_KEYS_MAX
#endif /* _ALL_SOURCE */
#define TZNAME_MAX 255
#define TTY_NAME_MAX PATH_MAX /* max len TTY name */
/* These are the runtime limit names for POSIX 1003.1c Realtime */
#define AIO_LISTIO_MAX 4096
#define AIO_MAX 4096
#define AIO_PRIO_DELTA_MAX 20
#define DELAYTIMER_MAX _POSIX_DELAYTIMER_MAX
#define MQ_OPEN_MAX 32768
#define MQ_PRIO_MAX 128
#define RTSIG_MAX _POSIX_RTSIG_MAX
#define SEM_NSEMS_MAX 32768
#define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
#define SIGQUEUE_MAX _POSIX_SIGQUEUE_MAX
#define TIMER_MAX _POSIX_TIMER_MAX
#define TRACE_NAME_MAX 255
#define TRACE_EVENT_NAME_MAX 255
#define TRACE_SYS_MAX 64
#define TRACE_USER_EVENT_MAX 56
/* PATH NAME VARIABLE VALUES */
/* The value of NAME_MAX must be retrieved by a call to the pathconf() or
* fpathconf() functions.
*/
#undef NAME_MAX /* max bytes in a file name (not a
string length; does not include a
terminating null) */
#if _POSIX_C_SOURCE >= 200112L && !(defined _ALL_SOURCE) || defined(_PATHMAX_HAS_NULL)
#define PATH_MAX 1024 /* max number of bytes in a pathname.
includes a terminating null */
#else
#define PATH_MAX 1023
#endif
/* RUN-TIME INCREASABLE VALUES
The following values are the minimum supported by this system. A specific
instance of this system may support larger values.
*/
#define LINK_MAX SHRT_MAX /* max of a file's ilink counts, >= 8 */
#define LOGIN_NAME_MAX 9 /* max login name inc. null */
#define PIPE_BUF 32768 /* max number of bytes that is
guaranteed to be atomic when writing
to a pipe, >= 512 */
#define NGROUPS_MIN 128 /* min number of groups allowed limit,
ngroups_allowed can range from
NGROUPS_MIN to NGROUPS_MAX */
#define HOST_NAME_MAX 256
#undef SYMLINK_MAX /* must be retrieved by a call to (f)pathconf() */
#define SYMLOOP_MAX 20
#endif /* _POSIX_SOURCE */
#ifdef _XOPEN_SOURCE
/* Some of the value in <float.h> are required in limits.h by XPG3, but
are not allowed by Posix.1. The include must remain in _XOPEN_SOURCE.
*/
#ifdef _ALL_SOURCE
#ifndef _H_FLOAT
#include <float.h> /* FLT_MAX, FLT_MIN, DBL_MAX, FLT_DIG, DBL_DIG */
#endif
/* SFPMIN, SFPMAX, DFPMAX, DBL_MIN, DFPMIN */
#else
#ifndef DBL_DIG
#define DBL_DIG 15
#endif
#ifndef FLT_DIG
#define FLT_DIG 6
#endif
#ifndef DBL_MAX
#define DBL_MAX 1.7976931348623158e+308 /* max decimal value of a double */
#endif
#ifndef FLT_MAX
#define FLT_MAX 3.4028234663852886e+38F /* max decimal value of a float */
#endif
#if (_XOPEN_SOURCE < 500)
#ifndef DBL_MIN
#define DBL_MIN 2.2250738585072014e-308
#endif
#ifndef FLT_MIN
#define FLT_MIN 1.1754943508222875e-38F /* min decimal value of a float */
#endif
#endif /* _XOPEN_SOURCE < 500 */
#endif /* _ALL_SOURCE */
/* ANSI C requires TMP_MAX to be in stdio.h, however, XOPEN requires it to be
* in limits.h.
*/
#ifndef TMP_MAX
#define TMP_MAX 16384 /* The number of unique names generated by the
tmpnam() function */
#endif /* TMP_MAX */
/* defines for message catalog usage */
#define NL_ARGMAX 9 /* max number of printf args */
#define NL_MSGMAX 65535 /* max number of messages per set */
#define NL_SETMAX 65535 /* max number of set per catalog */
#define NL_TEXTMAX 16384 /* max message length in bytes */
#define PASS_MAX 255 /* max number of bytes in a password
(not a string length; doesn't include
terminating null) */
#define NL_LANGMAX 14 /* max number of of bytes in a LANG name */
#if (_XOPEN_SOURCE < 700) /* Defect :814786 , NL_NMAX removed from unix10 standards */
#define NL_NMAX 10 /* max number of bytes in N-to-1 mapping
characters */
#endif
#ifndef NZERO
#define NZERO 20 /* default process priority */
#endif /* NZERO */
#ifdef __64BIT__
#define LONG_BIT 64 /* number of bits in a long */
#else
#define LONG_BIT 32 /* number of bits in a long */
#endif
#define WORD_BIT 32 /* number of bits in a "word" or int */
#define CHARCLASS_NAME_MAX 14 /* Maximum # of bytes in a character
class name */
#if _XOPEN_SOURCE_EXTENDED==1
#define ATEXIT_MAX 2048 /* max num of registered functions for
atexit() function, also defined
in stdlib.h */
#define _XOPEN_IOV_MAX 16 /* Maximum number of iov's on readv() */
/* or writev() */
#ifndef IOV_MAX /* Also Defined in sys/uio.h */
#define IOV_MAX _XOPEN_IOV_MAX
#endif /* IOV_MAX */
#define PAGE_SIZE 4096 /* page size granularity of memory */
#ifndef PAGESIZE
#define PAGESIZE PAGE_SIZE
#endif /* PAGESIZE */
#if _XOPEN_SOURCE>=500
#undef FILESIZEBITS /* # bits needed to hold file offset,
undef means must get from pathconf() */
#ifndef PTHREAD_STACK_MIN
#ifdef _AIX_PTHREADS_D7
#define PTHREAD_STACK_MIN ( PAGESIZE * 24 ) /* Must be a multiple of 16k */
#else /* _AIX_PTHREADS_D7 */
#ifdef __64BIT__
#define PTHREAD_STACK_MIN ( 2 * PAGESIZE * 2 )
#else /* __64BIT__ */
#define PTHREAD_STACK_MIN ( PAGESIZE * 2 )
#endif /* __64BIT */
#endif /* _AIX_PTHREADS_D7 */
#endif /* PTHREAD_STACK_MIN */
#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
/* # tries to destroy thread-
specific data values on exit */
#endif /* _XOPEN_SOURCE>=500 */
#endif /* _XOPEN_SOURCE_EXTENDED */
#if (_XOPEN_SOURCE>=600)
#define _XOPEN_NAME_MAX 255
#define _XOPEN_PATH_MAX 1024
#endif
#endif /* _XOPEN_SOURCE */
#ifdef _ALL_SOURCE
/* Asynchronous I/O limits.
*/
#define AIO_PRIO_DFL 1
#define AIO_PRIO_MAX 1
#define AIO_PRIO_MIN 1
#define AIO_LISTIO_MAX_SIZE AIO_LISTIO_MAX
#define PID_MAX INT_MAX /* max value for a process ID,
>=30000 */
#define UID_MAX UINT_MAX /* max value for a user or group ID */
#ifdef _LONG_LONG
/*
* Support for 64-bit integers, called long long int and unsigned long long int
* -(2**63) = -9,223,372,036,854,775,808
* 2**63 - 1 = +9,223,372,036,854,775,807
* 2**64 - 1 = +18,446,744,073,709,551,616
*/
#define LONGLONG_MAX (0x7fffffffffffffffLL)
#define LONGLONG_MIN (-LONGLONG_MAX - 1)
#define ULONGLONG_MAX (0xffffffffffffffffuLL)
/*
* File offset limits.
*/
/* DEV_OFF_MAX is not intended to be used by user applications */
#ifdef __64BIT_KERNEL
#define DEV_OFF_MAX LONGLONG_MAX
#else
#define DEV_OFF_MAX 0xffffffffffLL
#endif
#endif /* _LONG_LONG */
#define OFF_MAX 0x7fffffff /* Max size of a regular file 2^31 -1 */
#endif /*_ALL_SOURCE */
#ifdef __cplusplus
}
#endif
#endif /* _H_LIMITS */