1 #ifndef _LIMITS_H 2 #define _LIMITS_H 3 4 #include "los_config.h" 5 6 #ifdef __ICCARM__ /* for iar */ 7 #define PATH_MAX 256 8 #define MQ_PRIO_MAX 1 9 #define PTHREAD_STACK_MIN LOSCFG_BASE_CORE_TSK_MIN_STACK_SIZE 10 #define IOV_MAX 1024 11 #define SSIZE_MAX LONG_MAX 12 #include_next <limits.h> 13 #else 14 15 #include <features.h> 16 17 #include <bits/alltypes.h> /* __LONG_MAX */ 18 19 /* Support signed or unsigned plain-char */ 20 21 #if '\xff' > 0 22 #define CHAR_MIN 0 23 #define CHAR_MAX 255 24 #else 25 #define CHAR_MIN (-128) 26 #define CHAR_MAX 127 27 #endif 28 29 #define CHAR_BIT 8 30 #define SCHAR_MIN (-128) 31 #define SCHAR_MAX 127 32 #define UCHAR_MAX 255 33 #define SHRT_MIN (-1-0x7fff) 34 #define SHRT_MAX 0x7fff 35 #define USHRT_MAX 0xffff 36 #define INT_MIN (-1-0x7fffffff) 37 #define INT_MAX 0x7fffffff 38 #define UINT_MAX 0xffffffffU 39 #define LONG_MIN (-LONG_MAX-1) 40 #define LONG_MAX __LONG_MAX 41 #define ULONG_MAX (2UL*LONG_MAX+1) 42 #define LLONG_MIN (-LLONG_MAX-1) 43 #define LLONG_MAX 0x7fffffffffffffffLL 44 #define ULLONG_MAX (2ULL*LLONG_MAX+1) 45 46 #define MB_LEN_MAX 4 47 48 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 49 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 50 51 #include <bits/limits.h> 52 53 #define PIPE_BUF 4096 54 #define FILESIZEBITS 64 55 #ifndef NAME_MAX 56 #define NAME_MAX 255 57 #endif 58 #define PATH_MAX 256 59 #define NGROUPS_MAX 32 60 #define ARG_MAX 131072 61 #define IOV_MAX 1024 62 #define SYMLOOP_MAX 40 63 #define WORD_BIT 32 64 #define SSIZE_MAX LONG_MAX 65 #define TZNAME_MAX 6 66 #define TTY_NAME_MAX 32 67 #define HOST_NAME_MAX 255 68 69 #if LONG_MAX == 0x7fffffffL 70 #define LONG_BIT 32 71 #else 72 #define LONG_BIT 64 73 #endif 74 75 /* Implementation choices... */ 76 77 #define PTHREAD_KEYS_MAX 128 78 #define PTHREAD_STACK_MIN LOSCFG_BASE_CORE_TSK_MIN_STACK_SIZE 79 #define PTHREAD_DESTRUCTOR_ITERATIONS 4 80 #define SEM_VALUE_MAX OS_SEM_COUNTING_MAX_COUNT 81 #define SEM_NSEMS_MAX LOSCFG_BASE_IPC_SEM_LIMIT 82 #define DELAYTIMER_MAX 32 83 #define MQ_PRIO_MAX 1 84 #define LOGIN_NAME_MAX 256 85 86 /* Arbitrary numbers... */ 87 88 #define BC_BASE_MAX 99 89 #define BC_DIM_MAX 2048 90 #define BC_SCALE_MAX 99 91 #define BC_STRING_MAX 1000 92 #define CHARCLASS_NAME_MAX 14 93 #define COLL_WEIGHTS_MAX 2 94 #define EXPR_NEST_MAX 32 95 #define LINE_MAX 4096 96 #define RE_DUP_MAX 255 97 98 #define NL_ARGMAX 9 99 #define NL_MSGMAX 32767 100 #define NL_SETMAX 255 101 #define NL_TEXTMAX 2048 102 103 #endif 104 105 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE) 106 107 #ifdef PAGESIZE 108 #define PAGE_SIZE PAGESIZE 109 #endif 110 #define NZERO 20 111 #define NL_LANGMAX 32 112 113 #endif 114 115 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ 116 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 117 118 #define NL_NMAX 16 119 120 #endif 121 122 /* POSIX/SUS requirements follow. These numbers come directly 123 * from SUS and have nothing to do with the host system. */ 124 125 #define _POSIX_AIO_LISTIO_MAX 2 126 #define _POSIX_AIO_MAX 1 127 #define _POSIX_ARG_MAX 4096 128 #define _POSIX_CHILD_MAX 25 129 #define _POSIX_CLOCKRES_MIN 20000000 130 #define _POSIX_DELAYTIMER_MAX 32 131 #define _POSIX_HOST_NAME_MAX 255 132 #define _POSIX_LINK_MAX 8 133 #define _POSIX_LOGIN_NAME_MAX 9 134 #define _POSIX_MAX_CANON 255 135 #define _POSIX_MAX_INPUT 255 136 #define _POSIX_MQ_OPEN_MAX 8 137 #define _POSIX_MQ_PRIO_MAX 32 138 #define _POSIX_NAME_MAX 14 139 #define _POSIX_NGROUPS_MAX 8 140 #define _POSIX_OPEN_MAX 20 141 #define _POSIX_PATH_MAX 256 142 #define _POSIX_PIPE_BUF 512 143 #define _POSIX_RE_DUP_MAX 255 144 #define _POSIX_RTSIG_MAX 8 145 #define _POSIX_SEM_NSEMS_MAX 256 146 #define _POSIX_SEM_VALUE_MAX 32767 147 #define _POSIX_SIGQUEUE_MAX 32 148 #define _POSIX_SSIZE_MAX 32767 149 #define _POSIX_STREAM_MAX 8 150 #define _POSIX_SS_REPL_MAX 4 151 #define _POSIX_SYMLINK_MAX 255 152 #define _POSIX_SYMLOOP_MAX 8 153 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 154 #define _POSIX_THREAD_KEYS_MAX 128 155 #define _POSIX_THREAD_THREADS_MAX 64 156 #define _POSIX_TIMER_MAX 32 157 #define _POSIX_TRACE_EVENT_NAME_MAX 30 158 #define _POSIX_TRACE_NAME_MAX 8 159 #define _POSIX_TRACE_SYS_MAX 8 160 #define _POSIX_TRACE_USER_EVENT_MAX 32 161 #define _POSIX_TTY_NAME_MAX 9 162 #define _POSIX_TZNAME_MAX 6 163 #define _POSIX2_BC_BASE_MAX 99 164 #define _POSIX2_BC_DIM_MAX 2048 165 #define _POSIX2_BC_SCALE_MAX 99 166 #define _POSIX2_BC_STRING_MAX 1000 167 #define _POSIX2_CHARCLASS_NAME_MAX 14 168 #define _POSIX2_COLL_WEIGHTS_MAX 2 169 #define _POSIX2_EXPR_NEST_MAX 32 170 #define _POSIX2_LINE_MAX 2048 171 #define _POSIX2_RE_DUP_MAX 255 172 173 #define _XOPEN_IOV_MAX 16 174 #define _XOPEN_NAME_MAX 255 175 #define _XOPEN_PATH_MAX 1024 176 177 #endif /* __ICCARM__ */ 178 #endif 179