| Dan Albert | 287553d | 2017-02-16 10:47:51 -0800 | [diff] [blame] | 1 | /* $OpenBSD: limits.h,v 1.6 2005/12/13 00:35:23 millert Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2002 Marc Espie. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS |
| 15 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 16 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 17 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD |
| 18 | * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 19 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 20 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 21 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 22 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 24 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | */ |
| 26 | #ifndef _SYS_LIMITS_H_ |
| 27 | #define _SYS_LIMITS_H_ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | #include <linux/limits.h> |
| 31 | |
| 32 | /* Common definitions for limits.h. */ |
| 33 | |
| 34 | #define CHAR_BIT 8 /* number of bits in a char */ |
| 35 | |
| 36 | #define SCHAR_MAX 0x7f /* max value for a signed char */ |
| 37 | #define SCHAR_MIN (-0x7f-1) /* min value for a signed char */ |
| 38 | |
| 39 | #define UCHAR_MAX 0xffU /* max value for an unsigned char */ |
| 40 | #ifdef __CHAR_UNSIGNED__ |
| 41 | # define CHAR_MIN 0 /* min value for a char */ |
| 42 | # define CHAR_MAX 0xff /* max value for a char */ |
| 43 | #else |
| 44 | # define CHAR_MAX 0x7f |
| 45 | # define CHAR_MIN (-0x7f-1) |
| 46 | #endif |
| 47 | |
| 48 | #define USHRT_MAX 0xffffU /* max value for an unsigned short */ |
| 49 | #define SHRT_MAX 0x7fff /* max value for a short */ |
| 50 | #define SHRT_MIN (-0x7fff-1) /* min value for a short */ |
| 51 | |
| 52 | #define UINT_MAX 0xffffffffU /* max value for an unsigned int */ |
| 53 | #define INT_MAX 0x7fffffff /* max value for an int */ |
| 54 | #define INT_MIN (-0x7fffffff-1) /* min value for an int */ |
| 55 | |
| 56 | #ifdef __LP64__ |
| 57 | # define ULONG_MAX 0xffffffffffffffffUL |
| 58 | /* max value for unsigned long */ |
| 59 | # define LONG_MAX 0x7fffffffffffffffL |
| 60 | /* max value for a signed long */ |
| 61 | # define LONG_MIN (-0x7fffffffffffffffL-1) |
| 62 | /* min value for a signed long */ |
| 63 | #else |
| 64 | # define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ |
| 65 | # define LONG_MAX 0x7fffffffL /* max value for a long */ |
| 66 | # define LONG_MIN (-0x7fffffffL-1)/* min value for a long */ |
| 67 | #endif |
| 68 | |
| 69 | #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 |
| 70 | # define ULLONG_MAX 0xffffffffffffffffULL |
| 71 | /* max value for unsigned long long */ |
| 72 | # define LLONG_MAX 0x7fffffffffffffffLL |
| 73 | /* max value for a signed long long */ |
| 74 | # define LLONG_MIN (-0x7fffffffffffffffLL-1) |
| 75 | /* min value for a signed long long */ |
| 76 | #endif |
| 77 | |
| 78 | #if __BSD_VISIBLE |
| 79 | # define UID_MAX UINT_MAX /* max value for a uid_t */ |
| 80 | # define GID_MAX UINT_MAX /* max value for a gid_t */ |
| 81 | #endif |
| 82 | |
| 83 | |
| 84 | #ifdef __LP64__ |
| 85 | # define LONG_BIT 64 |
| 86 | #else |
| 87 | # define LONG_BIT 32 |
| 88 | #endif |
| 89 | |
| 90 | /* float.h defines these as well */ |
| 91 | # if !defined(DBL_DIG) |
| 92 | # if defined(__DBL_DIG) |
| 93 | # define DBL_DIG __DBL_DIG |
| 94 | # define DBL_MAX __DBL_MAX |
| 95 | # define DBL_MIN __DBL_MIN |
| 96 | |
| 97 | # define FLT_DIG __FLT_DIG |
| 98 | # define FLT_MAX __FLT_MAX |
| 99 | # define FLT_MIN __FLT_MIN |
| 100 | # else |
| 101 | # define DBL_DIG 15 |
| 102 | # define DBL_MAX 1.7976931348623157E+308 |
| 103 | # define DBL_MIN 2.2250738585072014E-308 |
| 104 | |
| 105 | # define FLT_DIG 6 |
| 106 | # define FLT_MAX 3.40282347E+38F |
| 107 | # define FLT_MIN 1.17549435E-38F |
| 108 | # endif |
| 109 | # endif |
| 110 | |
| 111 | /* Bionic: the following has been optimized out from our processed kernel headers */ |
| 112 | |
| 113 | #define CHILD_MAX 999 |
| 114 | #define OPEN_MAX 256 |
| 115 | |
| 116 | /* Bionic-specific definitions */ |
| 117 | |
| 118 | #define _POSIX_VERSION 200112L /* Posix C language bindings version */ |
| 119 | #define _POSIX2_VERSION -1 /* we don't support Posix command-line tools */ |
| 120 | #define _POSIX2_C_VERSION _POSIX_VERSION |
| 121 | #define _XOPEN_VERSION 500 /* by Posix definition */ |
| 122 | #define _XOPEN_XCU_VERSION -1 /* we don't support command-line utilities */ |
| 123 | |
| 124 | /* tell what we implement legacy stuff when appropriate */ |
| 125 | #if _POSIX_VERSION > 0 |
| 126 | #define _XOPEN_XPG2 1 |
| 127 | #define _XOPEN_XPG3 1 |
| 128 | #define _XOPEN_XPG4 1 |
| 129 | #define _XOPEN_UNIX 1 |
| 130 | #endif |
| 131 | |
| 132 | #define _XOPEN_ENH_I18N -1 /* we don't support internationalization in the C library */ |
| 133 | #define _XOPEN_CRYPT -1 /* don't support X/Open Encryption */ |
| 134 | #define _XOPEN_LEGACY -1 /* don't claim we support these, we have some of them but not all */ |
| 135 | #define _XOPEN_REALTIME -1 /* we don't support all these functions */ |
| 136 | #define _XOPEN_REALTIME_THREADS -1 /* same here */ |
| 137 | |
| 138 | #define _POSIX_REALTIME_SIGNALS -1 /* for now, this is not supported */ |
| 139 | #define _POSIX_PRIORITY_SCHEDULING 1 /* priority scheduling is a Linux feature */ |
| 140 | #define _POSIX_TIMERS 1 /* Posix timers are supported */ |
| 141 | #undef _POSIX_ASYNCHRONOUS_IO /* aio_ functions are not supported */ |
| 142 | #define _POSIX_SYNCHRONIZED_IO 1 /* synchronized i/o supported */ |
| 143 | #define _POSIX_FSYNC 1 /* fdatasync() supported */ |
| 144 | #define _POSIX_MAPPED_FILES 1 /* mmap-ed files supported */ |
| 145 | |
| 146 | /* XXX: TODO: complete and check list here */ |
| 147 | |
| 148 | |
| 149 | #define _POSIX_THREADS 1 /* we support threads */ |
| 150 | #define _POSIX_THREAD_STACKADDR 1 /* we support thread stack address */ |
| 151 | #define _POSIX_THREAD_STACKSIZE 1 /* we support thread stack size */ |
| 152 | #define _POSIX_THREAD_PRIO_INHERIT 200112L /* linux feature */ |
| 153 | #define _POSIX_THREAD_PRIO_PROTECT 200112L /* linux feature */ |
| 154 | |
| 155 | #undef _POSIX_PROCESS_SHARED /* we don't support process-shared synchronization */ |
| 156 | #undef _POSIX_THREAD_SAFE_FUNCTIONS /* most functions are, but not everything yet */ |
| 157 | #define _POSIX_CHOWN_RESTRICTED 1 /* yes, chown requires appropriate privileges */ |
| 158 | #define _POSIX_MONOTONIC_CLOCK 0 /* the monotonic clock may be available; ask sysconf */ |
| 159 | #define _POSIX_NO_TRUNC 1 /* very long pathnames generate an error */ |
| 160 | #define _POSIX_SAVED_IDS 1 /* saved user ids is a Linux feature */ |
| 161 | #define _POSIX_JOB_CONTROL 1 /* job control is a Linux feature */ |
| 162 | |
| 163 | #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 /* the minimum mandated by POSIX */ |
| 164 | #define PTHREAD_DESTRUCTOR_ITERATIONS _POSIX_THREAD_DESTRUCTOR_ITERATIONS |
| 165 | #define _POSIX_THREAD_KEYS_MAX 128 /* the minimum mandated by POSIX */ |
| 166 | #define PTHREAD_KEYS_MAX _POSIX_THREAD_KEYS_MAX |
| 167 | #define _POSIX_THREAD_THREADS_MAX 64 /* the minimum mandated by POSIX */ |
| 168 | #define PTHREAD_THREADS_MAX /* bionic has no specific limit */ |
| 169 | |
| 170 | |
| 171 | #endif |