1#ifndef _LIMITS_H 2#define _LIMITS_H 3 4#include <features.h> 5 6#include <bits/alltypes.h> /* __LONG_MAX */ 7 8/* Support signed or unsigned plain-char */ 9 10#if '\xff' > 0 11#define CHAR_MIN 0 12#define CHAR_MAX 255 13#else 14#define CHAR_MIN (-128) 15#define CHAR_MAX 127 16#endif 17 18#define CHAR_BIT 8 19#define SCHAR_MIN (-128) 20#define SCHAR_MAX 127 21#define UCHAR_MAX 255 22#define SHRT_MIN (-1-0x7fff) 23#define SHRT_MAX 0x7fff 24#define USHRT_MAX 0xffff 25#define INT_MIN (-1-0x7fffffff) 26#define INT_MAX 0x7fffffff 27#define UINT_MAX 0xffffffffU 28#define LONG_MIN (-LONG_MAX-1) 29#define LONG_MAX __LONG_MAX 30#define ULONG_MAX (2UL*LONG_MAX+1) 31#define LLONG_MIN (-LLONG_MAX-1) 32#define LLONG_MAX 0x7fffffffffffffffLL 33#define ULLONG_MAX (2ULL*LLONG_MAX+1) 34 35#define MB_LEN_MAX 4 36 37#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 38 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 39 40#include <bits/limits.h> 41 42#define PIPE_BUF 4096 43#define FILESIZEBITS 64 44#ifndef NAME_MAX 45#define NAME_MAX 255 46#endif 47#ifdef __LITEOS_A__ 48#define PATH_MAX 256 49#define ARG_MAX 4096 50#else 51#define PATH_MAX 4096 52#define ARG_MAX 131072 53#endif 54#define NGROUPS_MAX 32 55#define IOV_MAX 1024 56#define SYMLOOP_MAX 40 57#define WORD_BIT 32 58#define SSIZE_MAX LONG_MAX 59#define TZNAME_MAX 6 60#define TTY_NAME_MAX 32 61#define HOST_NAME_MAX 255 62 63#if LONG_MAX == 0x7fffffffL 64#define LONG_BIT 32 65#else 66#define LONG_BIT 64 67#endif 68 69/* Implementation choices... */ 70 71#define PTHREAD_KEYS_MAX 128 72#define PTHREAD_STACK_MIN 2048 73#define PTHREAD_DESTRUCTOR_ITERATIONS 4 74#define SEM_VALUE_MAX 0x7fffffff 75#define SEM_NSEMS_MAX 256 76#define DELAYTIMER_MAX 0x7fffffff 77#ifdef __LITEOS_A__ 78#define MQ_PRIO_MAX 1 79#else 80#define MQ_PRIO_MAX 32768 81#endif 82#define LOGIN_NAME_MAX 256 83 84/* Arbitrary numbers... */ 85 86#define BC_BASE_MAX 99 87#define BC_DIM_MAX 2048 88#define BC_SCALE_MAX 99 89#define BC_STRING_MAX 1000 90#define CHARCLASS_NAME_MAX 14 91#define COLL_WEIGHTS_MAX 2 92#define EXPR_NEST_MAX 32 93#define LINE_MAX 4096 94#define RE_DUP_MAX 255 95 96#define NL_ARGMAX 9 97#define NL_MSGMAX 32767 98#define NL_SETMAX 255 99#define NL_TEXTMAX 2048 100 101#endif 102 103#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE) 104 105#ifdef PAGESIZE 106#define PAGE_SIZE PAGESIZE 107#endif 108#define NZERO 20 109#define NL_LANGMAX 32 110 111#endif 112 113#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ 114 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 115 116#define NL_NMAX 16 117 118#endif 119 120/* POSIX/SUS requirements follow. These numbers come directly 121 * from SUS and have nothing to do with the host system. */ 122 123#define _POSIX_AIO_LISTIO_MAX 2 124#define _POSIX_AIO_MAX 1 125#define _POSIX_ARG_MAX 4096 126#define _POSIX_CHILD_MAX 25 127#define _POSIX_CLOCKRES_MIN 20000000 128#define _POSIX_DELAYTIMER_MAX 32 129#define _POSIX_HOST_NAME_MAX 255 130#define _POSIX_LINK_MAX 8 131#define _POSIX_LOGIN_NAME_MAX 9 132#define _POSIX_MAX_CANON 255 133#define _POSIX_MAX_INPUT 255 134#define _POSIX_MQ_OPEN_MAX 8 135#define _POSIX_MQ_PRIO_MAX 32 136#define _POSIX_NAME_MAX 14 137#define _POSIX_NGROUPS_MAX 8 138#define _POSIX_OPEN_MAX 20 139#define _POSIX_PATH_MAX 256 140#define _POSIX_PIPE_BUF 512 141#define _POSIX_RE_DUP_MAX 255 142#define _POSIX_RTSIG_MAX 8 143#define _POSIX_SEM_NSEMS_MAX 256 144#define _POSIX_SEM_VALUE_MAX 32767 145#define _POSIX_SIGQUEUE_MAX 32 146#define _POSIX_SSIZE_MAX 32767 147#define _POSIX_STREAM_MAX 8 148#define _POSIX_SS_REPL_MAX 4 149#define _POSIX_SYMLINK_MAX 255 150#define _POSIX_SYMLOOP_MAX 8 151#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 152#define _POSIX_THREAD_KEYS_MAX 128 153#define _POSIX_THREAD_THREADS_MAX 64 154#define _POSIX_TIMER_MAX 32 155#define _POSIX_TRACE_EVENT_NAME_MAX 30 156#define _POSIX_TRACE_NAME_MAX 8 157#define _POSIX_TRACE_SYS_MAX 8 158#define _POSIX_TRACE_USER_EVENT_MAX 32 159#define _POSIX_TTY_NAME_MAX 9 160#define _POSIX_TZNAME_MAX 6 161#define _POSIX2_BC_BASE_MAX 99 162#define _POSIX2_BC_DIM_MAX 2048 163#define _POSIX2_BC_SCALE_MAX 99 164#define _POSIX2_BC_STRING_MAX 1000 165#define _POSIX2_CHARCLASS_NAME_MAX 14 166#define _POSIX2_COLL_WEIGHTS_MAX 2 167#define _POSIX2_EXPR_NEST_MAX 32 168#define _POSIX2_LINE_MAX 2048 169#define _POSIX2_RE_DUP_MAX 255 170 171#define _XOPEN_IOV_MAX 16 172#define _XOPEN_NAME_MAX 255 173#define _XOPEN_PATH_MAX 1024 174 175#endif 176