1 #ifndef _LIMITS_H 2 #define _LIMITS_H 3 4 #include <features.h> 5 6 #include <bits/alltypes.h> /* __LONG_MAX */ 7 8 #include "los_config.h" 9 10 #ifndef PAGE_SIZE 11 #define PAGE_SIZE 4096 12 #endif 13 #ifndef PAGESIZE 14 #define PAGESIZE PAGE_SIZE 15 #endif 16 17 #define _POSIX_GETGR_R_SIZE_MAX 0 18 #define _POSIX_GETPW_R_SIZE_MAX 0 19 20 #define GETGR_R_SIZE_MAX _POSIX_GETGR_R_SIZE_MAX 21 #define GETPW_R_SIZE_MAX _POSIX_GETPW_R_SIZE_MAX 22 23 #define _POSIX_CLK_TICK time((time_t *)NULL) 24 #define SYS_CLK_TCK _POSIX_CLK_TICK 25 #define TIMER_MAX _POSIX_TIMER_MAX 26 #define POSIX_VERSION _POSIX_VERSION 27 28 #define _LITEOS_MQ_OPEN_MAX LOSCFG_BASE_IPC_QUEUE_LIMIT 29 #define MQ_OPEN_MAX _LITEOS_MQ_OPEN_MAX 30 #define PTHREAD_ATTR_STACKSIZE LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE 31 #define PTHREAD_PRIORITY_SCHEDULING SCHED_OTHER 32 #define PTHREAD_THREADS_MAX (LOSCFG_BASE_CORE_TSK_LIMIT + 1) 33 #define TIMERS LOSCFG_BASE_CORE_SWTMR 34 35 #define LINK_MAX 8 36 #define RTSIG_MAX 8 37 #define STREAM_MAX 8 38 #define SIGQUEUE_MAX 32 39 #define FILESYSTEM_TYPE_MAX 32 40 41 /* Support signed or unsigned plain-char */ 42 43 #if '\xff' > 0 44 #define CHAR_MIN 0 45 #define CHAR_MAX 255 46 #else 47 #define CHAR_MIN (-128) 48 #define CHAR_MAX 127 49 #endif 50 51 #define CHAR_BIT 8 52 #define SCHAR_MIN (-128) 53 #define SCHAR_MAX 127 54 #define UCHAR_MAX 255 55 #define SHRT_MIN (-1-0x7fff) 56 #define SHRT_MAX 0x7fff 57 #define USHRT_MAX 0xffff 58 #define INT_MIN (-1-0x7fffffff) 59 #define INT_MAX 0x7fffffff 60 #define UINT_MAX 0xffffffffU 61 #define LONG_MIN (-LONG_MAX-1) 62 #define LONG_MAX __LONG_MAX 63 #define ULONG_MAX (2UL*LONG_MAX+1) 64 #define LLONG_MIN (-LLONG_MAX-1) 65 #define LLONG_MAX 0x7fffffffffffffffLL 66 #define ULLONG_MAX (2ULL*LLONG_MAX+1) 67 68 #define MB_LEN_MAX 4 69 70 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 71 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 72 73 #include <bits/limits.h> 74 75 #define PIPE_BUF 4096 76 #define FILESIZEBITS 64 77 #ifndef NAME_MAX 78 #define NAME_MAX 255 79 #endif 80 #define PATH_MAX 256 81 #define CONFIG_PATH_MAX PATH_MAX 82 #define CONFIG_NAME_MAX NAME_MAX 83 #define NGROUPS_MAX 32 84 #define ARG_MAX 4096 85 #define IOV_MAX 1024 86 #define SYMLOOP_MAX 40 87 #define WORD_BIT 32 88 #define SSIZE_MAX LONG_MAX 89 #define TZNAME_MAX 6 90 #define TTY_NAME_MAX 32 91 #define HOST_NAME_MAX 255 92 93 #ifdef __LP64__ 94 #define LONG_BIT 64 95 #else 96 #define LONG_BIT 32 97 #endif 98 99 /* Implementation choices... */ 100 101 #define PTHREAD_KEYS_MAX 128 102 #define PTHREAD_STACK_MIN LOS_TASK_MIN_STACK_SIZE 103 #define PTHREAD_DESTRUCTOR_ITERATIONS 4 104 #define SEM_VALUE_MAX OS_SEM_COUNT_MAX 105 #define SEM_NSEMS_MAX LOSCFG_BASE_IPC_SEM_LIMIT 106 #define DELAYTIMER_MAX 32 107 #define LOGIN_NAME_MAX 256 108 109 /* Arbitrary numbers... */ 110 111 #define BC_BASE_MAX 99 112 #define BC_DIM_MAX 2048 113 #define BC_SCALE_MAX 99 114 #define BC_STRING_MAX 1000 115 #define CHARCLASS_NAME_MAX 14 116 #define COLL_WEIGHTS_MAX 2 117 #define EXPR_NEST_MAX 32 118 #define LINE_MAX 4096 119 #define RE_DUP_MAX 255 120 121 #define NL_ARGMAX 9 122 #define NL_MSGMAX 32767 123 #define NL_SETMAX 255 124 #define NL_TEXTMAX 2048 125 126 #endif 127 128 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE) 129 130 #define NZERO 20 131 #define NL_LANGMAX 32 132 133 #endif 134 135 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ 136 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 137 138 #define NL_NMAX 16 139 140 #endif 141 142 /* POSIX/SUS requirements follow. These numbers come directly 143 * from SUS and have nothing to do with the host system. */ 144 145 #define _POSIX_AIO_LISTIO_MAX 2 146 #define _POSIX_AIO_MAX 1 147 #define _POSIX_ARG_MAX 4096 148 #define _POSIX_CHILD_MAX 25 149 #define _POSIX_CLOCKRES_MIN 20000000 150 #define _POSIX_DELAYTIMER_MAX 32 151 #define _POSIX_HOST_NAME_MAX 255 152 #define _POSIX_LINK_MAX 8 153 #define _POSIX_LOGIN_NAME_MAX 9 154 #define _POSIX_MAX_CANON 255 155 #define _POSIX_MAX_INPUT 255 156 #define _POSIX_MQ_OPEN_MAX 8 157 #define _POSIX_MQ_PRIO_MAX 32 158 #define _POSIX_NAME_MAX 14 159 #define _POSIX_NGROUPS_MAX 8 160 #define _POSIX_OPEN_MAX 20 161 #define _POSIX_PATH_MAX 256 162 #define _POSIX_PIPE_BUF 512 163 #define _POSIX_RE_DUP_MAX 255 164 #define _POSIX_RTSIG_MAX 8 165 #define _POSIX_SEM_NSEMS_MAX 256 166 #define _POSIX_SEM_VALUE_MAX 32767 167 #define _POSIX_SIGQUEUE_MAX 32 168 #define _POSIX_SSIZE_MAX 32767 169 #define _POSIX_STREAM_MAX 8 170 #define _POSIX_SS_REPL_MAX 4 171 #define _POSIX_SYMLINK_MAX 255 172 #define _POSIX_SYMLOOP_MAX 8 173 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 174 #define _POSIX_THREAD_KEYS_MAX 128 175 #define _POSIX_THREAD_THREADS_MAX 64 176 #define _POSIX_TIMER_MAX 32 177 #define _POSIX_TRACE_EVENT_NAME_MAX 30 178 #define _POSIX_TRACE_NAME_MAX 8 179 #define _POSIX_TRACE_SYS_MAX 8 180 #define _POSIX_TRACE_USER_EVENT_MAX 32 181 #define _POSIX_TTY_NAME_MAX 9 182 #define _POSIX_TZNAME_MAX 6 183 #define _POSIX2_BC_BASE_MAX 99 184 #define _POSIX2_BC_DIM_MAX 2048 185 #define _POSIX2_BC_SCALE_MAX 99 186 #define _POSIX2_BC_STRING_MAX 1000 187 #define _POSIX2_CHARCLASS_NAME_MAX 14 188 #define _POSIX2_COLL_WEIGHTS_MAX 2 189 #define _POSIX2_EXPR_NEST_MAX 32 190 #define _POSIX2_LINE_MAX 2048 191 #define _POSIX2_RE_DUP_MAX 255 192 193 #define _XOPEN_IOV_MAX 16 194 #define _XOPEN_NAME_MAX 255 195 #define _XOPEN_PATH_MAX 1024 196 197 #define CHILD_MAX 6 198 #define OPEN_MAX 256 199 200 #endif 201