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/*
* This file lists the minimums for the limits set by each of
* the POSIX features subsets.
*
* XXX: Careful attention needs to be paid to section 2.8 in 1003.1b-1993
* to segregrate the variables below based on their "class" according
* to our implementation. We also need to set the Run-Time Invariant
* and other related values.
*
* $Id$
*/
#ifndef _GCC_LIMITS_H_ /* if we have not seen gcc's limits.h yet */
#include_next <limits.h>
#endif
#include <sys/syslimits.h>
#ifndef __POSIX_LIMITS_h
#define __POSIX_LIMITS_h
/****************************************************************************
****************************************************************************
* *
* P1003.1b-1993 defines the constants below this comment. *
* *
****************************************************************************
****************************************************************************/
#define _POSIX_AIO_LISTIO_MAX 2
#define _POSIX_AIO_MAX 1
#define _POSIX_ARG_MAX 4096
#define _POSIX_CHILD_MAX 6
#define _POSIX_DELAYTIMER_MAX 32
#define _POSIX_HOST_NAME_MAX 255
#define _POSIX_LINK_MAX 8
#define _POSIX_MAX_CANON 255
#define _POSIX_MAX_INPUT 255
#define _POSIX_MQ_OPEN_MAX 8
#define _POSIX_MQ_PRIO_MAX 32
#define _POSIX_NAME_MAX 255
#define _POSIX_NGROUPS_MAX 0
#define _POSIX_OPEN_MAX 16
#define _POSIX_PATH_MAX 255
#define _POSIX_PIPE_BUF 512
/* The maximum number of repeated occurrences of a regular expression
* * permitted when using the interval notation `\{M,N\}'. */
#define _POSIX2_RE_DUP_MAX 255
#define _POSIX_RTSIG_MAX 8
#define _POSIX_SEM_NSEMS_MAX 256
#define _POSIX_SEM_VALUE_MAX 32767
#define _POSIX_SIGQUEUE_MAX 32
#define _POSIX_SSIZE_MAX 32767
#define _POSIX_STREAM_MAX 8
#define _POSIX_TIMER_MAX 32
#define _POSIX_TZNAME_MAX 3
/*
* Definitions of the following may be omitted if the value is >= stated
* minimum but is indeterminate.
*/
#define AIO_LISTIO_MAX 2
#define AIO_MAX 1
#define AIO_PRIO_DELTA_MAX 0
#define DELAYTIMER_MAX 32
#define MQ_OPEN_MAX 8
#define MQ_PRIO_MAX 32
#define PAGESIZE 1
#define RTSIG_MAX 8
#define SEM_NSEMS_MAX 256
#define SEM_VALUE_MAX 32767
#define SIGQUEUE_MAX 32
#define STREAM_MAX 8
#define TIMER_MAX 32
#define TZNAME_MAX 3
/*
* Invariant values
*/
#ifdef __SIZE_MAX__
#define SSIZE_MAX (__SIZE_MAX__ >> 1)
#elif defined(__SIZEOF_SIZE_T__) && defined(__CHAR_BIT__)
#define SSIZE_MAX ((1UL << (__SIZEOF_SIZE_T__ * __CHAR_BIT__ - 1)) - 1)
#else /* historic fallback, wrong in most cases */
#define SSIZE_MAX 32767
#endif
/*
* Maximum Values
*/
#define _POSIX_CLOCKRES_MIN 0 /* in nanoseconds */
/****************************************************************************
****************************************************************************
* *
* P1003.1c/D10 defines the constants below this comment. *
*
* XXX: doc seems to have printing problems in this table :(
* *
****************************************************************************
****************************************************************************/
#define _POSIX_LOGIN_NAME_MAX 9
#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
#define _POSIX_THREAD_KEYS_MAX 28
#define _POSIX_THREAD_THREADS_MAX 64
#define _POSIX_TTY_NAME_MAX 9
/*
* Definitions of the following may be omitted if the value is >= stated
* minimum but is indeterminate.
*
* NOTE: LOGIN_NAME_MAX is named LOGNAME_MAX under Solaris 2.x. Perhaps
* the draft specification will be changing. jrs 05/24/96
*/
#define LOGIN_NAME_MAX _POSIX_LOGIN_NAME_MAX
#define TTY_NAME_MAX _POSIX_TTY_NAME_MAX
#define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS
/*
* RTEMS is smart enough to give us the minimum stack size if we ask
* for too little. Because the real RTEMS limit for this is cpu dependent
* AND rtems header files are not installed yet, we cannot use the cpu
* dependent constant CPU_STACK_MINIMUM_SIZE. Moreover, we do not want
* to duplicate that information here so we will just let RTEMS magically
* give us its minimum stack size.
*
* NOTE: The other alternative is to have this be a macro for a
* routine in RTEMS which returns the constant.
*/
#define PTHREAD_STACK_MIN 0
/*
* The maximum number of keys (PTHREAD_KEYS_MAX) and threads
* (PTHREAD_THREADS_MAX) are configurable and may exceed the minimum.
*
#define PTHREAD_KEYS_MAX _POSIX_THREAD_KEYS_MAX
#define PTHREAD_THREADS_MAX _POSIX_THREAD_THREADS_MAX
*/
/****************************************************************************
****************************************************************************
* *
* P1003.4b/D8 defines the constants below this comment. *
* *
****************************************************************************
****************************************************************************/
#define _POSIX_INTERRUPT_OVERRUN_MAX 32
/*
* Definitions of the following may be omitted if the value is >= stated
* minimum but is indeterminate.
*/
#define INTERRUPT_OVERRUN_MAX 32
/*
* Pathname Variables
*/
#define MIN_ALLOC_SIZE
#define REC_MIN_XFER_SIZE
#define REC_MAX_XFER_SIZE
#define REC_INCR_XFER_SIZE
#define REC_XFER_ALIGN
#define MAX_ATOMIC_SIZE
#endif
/* end of include file */
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