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Diffstat (limited to 'newlib/libc/sys/rtems/include/limits.h')
| -rw-r--r-- | newlib/libc/sys/rtems/include/limits.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/newlib/libc/sys/rtems/include/limits.h b/newlib/libc/sys/rtems/include/limits.h new file mode 100644 index 00000000000..e9f45e44cf9 --- /dev/null +++ b/newlib/libc/sys/rtems/include/limits.h @@ -0,0 +1,178 @@ +/* + * 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 + +#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_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 +#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 ARG_MAX 4096 +#define CHILD_MAX 6 +#define DELAYTIMER_MAX 32 +#define MQ_OPEN_MAX 8 +#define MQ_PRIO_MAX 32 +#define OPEN_MAX 16 +#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 + +/* + * Pathname Variables + */ + +#define LINK_MAX 8 +#define MAX_CANON 255 +#define MAX_INPUT 255 +#define NAME_MAX 255 +#define PATH_MAX 255 +#define PIPE_BUF 512 + +/* + * Invariant values + */ + +#define SSIZE_MAX 32767 + +/* + * 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 */ |