Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 1 | #ifndef Py_PYPORT_H |
Vladimir Marangozov | 14a4d88 | 2000-07-10 04:59:49 +0000 | [diff] [blame] | 2 | #define Py_PYPORT_H |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 3 | |
Martin v. Löwis | 4f1cd8b | 2001-07-26 13:41:06 +0000 | [diff] [blame] | 4 | #include "pyconfig.h" /* include for defines */ |
Peter Schneider-Kamp | 25f6894 | 2000-07-31 22:19:30 +0000 | [diff] [blame] | 5 | |
Mark Dickinson | 835a6c8 | 2009-06-30 15:45:17 +0000 | [diff] [blame] | 6 | /* Some versions of HP-UX & Solaris need inttypes.h for int32_t, |
| 7 | INT32_MAX, etc. */ |
| 8 | #ifdef HAVE_INTTYPES_H |
| 9 | #include <inttypes.h> |
| 10 | #endif |
| 11 | |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 12 | #ifdef HAVE_STDINT_H |
| 13 | #include <stdint.h> |
| 14 | #endif |
| 15 | |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 16 | /************************************************************************** |
| 17 | Symbols and macros to supply platform-independent interfaces to basic |
Tim Peters | 1be4684 | 2000-07-23 18:10:18 +0000 | [diff] [blame] | 18 | C language & library operations whose spellings vary across platforms. |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 19 | |
| 20 | Please try to make documentation here as clear as possible: by definition, |
| 21 | the stuff here is trying to illuminate C's darkest corners. |
| 22 | |
| 23 | Config #defines referenced here: |
| 24 | |
| 25 | SIGNED_RIGHT_SHIFT_ZERO_FILLS |
| 26 | Meaning: To be defined iff i>>j does not extend the sign bit when i is a |
| 27 | signed integral type and i < 0. |
| 28 | Used in: Py_ARITHMETIC_RIGHT_SHIFT |
Tim Peters | 1be4684 | 2000-07-23 18:10:18 +0000 | [diff] [blame] | 29 | |
Tim Peters | 8315ea5 | 2000-07-23 19:28:35 +0000 | [diff] [blame] | 30 | Py_DEBUG |
| 31 | Meaning: Extra checks compiled in for debug mode. |
| 32 | Used in: Py_SAFE_DOWNCAST |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 33 | |
| 34 | HAVE_UINTPTR_T |
| 35 | Meaning: The C9X type uintptr_t is supported by the compiler |
| 36 | Used in: Py_uintptr_t |
| 37 | |
| 38 | HAVE_LONG_LONG |
| 39 | Meaning: The compiler supports the C type "long long" |
Martin v. Löwis | b9a0f91 | 2003-03-29 10:06:18 +0000 | [diff] [blame] | 40 | Used in: PY_LONG_LONG |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 41 | |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 42 | **************************************************************************/ |
| 43 | |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 44 | /* typedefs for some C9X-defined synonyms for integral types. |
| 45 | * |
| 46 | * The names in Python are exactly the same as the C9X names, except with a |
| 47 | * Py_ prefix. Until C9X is universally implemented, this is the only way |
| 48 | * to ensure that Python gets reliable names that don't conflict with names |
| 49 | * in non-Python code that are playing their own tricks to define the C9X |
| 50 | * names. |
| 51 | * |
| 52 | * NOTE: don't go nuts here! Python has no use for *most* of the C9X |
| 53 | * integral synonyms. Only define the ones we actually need. |
| 54 | */ |
| 55 | |
| 56 | #ifdef HAVE_LONG_LONG |
Martin v. Löwis | b9a0f91 | 2003-03-29 10:06:18 +0000 | [diff] [blame] | 57 | #ifndef PY_LONG_LONG |
| 58 | #define PY_LONG_LONG long long |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 59 | #if defined(LLONG_MAX) |
| 60 | /* If LLONG_MAX is defined in limits.h, use that. */ |
| 61 | #define PY_LLONG_MIN LLONG_MIN |
| 62 | #define PY_LLONG_MAX LLONG_MAX |
| 63 | #define PY_ULLONG_MAX ULLONG_MAX |
| 64 | #elif defined(__LONG_LONG_MAX__) |
Mark Dickinson | 6646cd4 | 2010-11-20 10:43:10 +0000 | [diff] [blame] | 65 | /* Otherwise, if GCC has a builtin define, use that. (Definition of |
| 66 | * PY_LLONG_MIN assumes two's complement with no trap representation.) */ |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 67 | #define PY_LLONG_MAX __LONG_LONG_MAX__ |
Mark Dickinson | 6646cd4 | 2010-11-20 10:43:10 +0000 | [diff] [blame] | 68 | #define PY_LLONG_MIN (-PY_LLONG_MAX - 1) |
| 69 | #define PY_ULLONG_MAX (PY_LLONG_MAX * Py_ULL(2) + 1) |
| 70 | #elif defined(SIZEOF_LONG_LONG) |
| 71 | /* Otherwise compute from SIZEOF_LONG_LONG, assuming two's complement, no |
| 72 | padding bits, and no trap representation. Note: PY_ULLONG_MAX was |
| 73 | previously #defined as (~0ULL) here; but that'll give the wrong value in a |
| 74 | preprocessor expression on systems where long long != intmax_t. */ |
| 75 | #define PY_LLONG_MAX \ |
| 76 | (1 + 2 * ((Py_LL(1) << (CHAR_BIT * SIZEOF_LONG_LONG - 2)) - 1)) |
| 77 | #define PY_LLONG_MIN (-PY_LLONG_MAX - 1) |
| 78 | #define PY_ULLONG_MAX (PY_LLONG_MAX * Py_ULL(2) + 1) |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 79 | #endif /* LLONG_MAX */ |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 80 | #endif |
| 81 | #endif /* HAVE_LONG_LONG */ |
| 82 | |
Mark Dickinson | bd79264 | 2009-03-18 20:06:12 +0000 | [diff] [blame] | 83 | /* a build with 30-bit digits for Python long integers needs an exact-width |
| 84 | * 32-bit unsigned integer type to store those digits. (We could just use |
| 85 | * type 'unsigned long', but that would be wasteful on a system where longs |
| 86 | * are 64-bits.) On Unix systems, the autoconf macro AC_TYPE_UINT32_T defines |
| 87 | * uint32_t to be such a type unless stdint.h or inttypes.h defines uint32_t. |
| 88 | * However, it doesn't set HAVE_UINT32_T, so we do that here. |
| 89 | */ |
| 90 | #if (defined UINT32_MAX || defined uint32_t) |
| 91 | #ifndef PY_UINT32_T |
| 92 | #define HAVE_UINT32_T 1 |
| 93 | #define PY_UINT32_T uint32_t |
| 94 | #endif |
| 95 | #endif |
| 96 | |
| 97 | /* Macros for a 64-bit unsigned integer type; used for type 'twodigits' in the |
| 98 | * long integer implementation, when 30-bit digits are enabled. |
| 99 | */ |
| 100 | #if (defined UINT64_MAX || defined uint64_t) |
| 101 | #ifndef PY_UINT64_T |
| 102 | #define HAVE_UINT64_T 1 |
| 103 | #define PY_UINT64_T uint64_t |
| 104 | #endif |
| 105 | #endif |
| 106 | |
| 107 | /* Signed variants of the above */ |
| 108 | #if (defined INT32_MAX || defined int32_t) |
| 109 | #ifndef PY_INT32_T |
| 110 | #define HAVE_INT32_T 1 |
| 111 | #define PY_INT32_T int32_t |
| 112 | #endif |
| 113 | #endif |
| 114 | #if (defined INT64_MAX || defined int64_t) |
| 115 | #ifndef PY_INT64_T |
| 116 | #define HAVE_INT64_T 1 |
| 117 | #define PY_INT64_T int64_t |
| 118 | #endif |
| 119 | #endif |
| 120 | |
| 121 | /* If PYLONG_BITS_IN_DIGIT is not defined then we'll use 30-bit digits if all |
| 122 | the necessary integer types are available, and we're on a 64-bit platform |
| 123 | (as determined by SIZEOF_VOID_P); otherwise we use 15-bit digits. */ |
| 124 | |
| 125 | #ifndef PYLONG_BITS_IN_DIGIT |
| 126 | #if (defined HAVE_UINT64_T && defined HAVE_INT64_T && \ |
| 127 | defined HAVE_UINT32_T && defined HAVE_INT32_T && SIZEOF_VOID_P >= 8) |
| 128 | #define PYLONG_BITS_IN_DIGIT 30 |
| 129 | #else |
| 130 | #define PYLONG_BITS_IN_DIGIT 15 |
| 131 | #endif |
| 132 | #endif |
| 133 | |
Mark Dickinson | dc787d2 | 2010-05-23 13:33:13 +0000 | [diff] [blame] | 134 | /* Parameters used for the numeric hash implementation. See notes for |
Mark Dickinson | 0390151 | 2011-09-24 16:24:56 +0100 | [diff] [blame] | 135 | _Py_HashDouble in Objects/object.c. Numeric hashes are based on |
Mark Dickinson | dc787d2 | 2010-05-23 13:33:13 +0000 | [diff] [blame] | 136 | reduction modulo the prime 2**_PyHASH_BITS - 1. */ |
| 137 | |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 138 | #if SIZEOF_VOID_P >= 8 |
Mark Dickinson | dc787d2 | 2010-05-23 13:33:13 +0000 | [diff] [blame] | 139 | #define _PyHASH_BITS 61 |
| 140 | #else |
| 141 | #define _PyHASH_BITS 31 |
| 142 | #endif |
Benjamin Peterson | 8035bc5 | 2010-10-23 16:20:50 +0000 | [diff] [blame] | 143 | #define _PyHASH_MODULUS (((size_t)1 << _PyHASH_BITS) - 1) |
Mark Dickinson | dc787d2 | 2010-05-23 13:33:13 +0000 | [diff] [blame] | 144 | #define _PyHASH_INF 314159 |
| 145 | #define _PyHASH_NAN 0 |
| 146 | #define _PyHASH_IMAG 1000003UL |
| 147 | |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 148 | /* uintptr_t is the C9X name for an unsigned integral type such that a |
| 149 | * legitimate void* can be cast to uintptr_t and then back to void* again |
Tim Peters | 79248aa | 2001-08-29 21:37:10 +0000 | [diff] [blame] | 150 | * without loss of information. Similarly for intptr_t, wrt a signed |
| 151 | * integral type. |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 152 | */ |
| 153 | #ifdef HAVE_UINTPTR_T |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 154 | typedef uintptr_t Py_uintptr_t; |
| 155 | typedef intptr_t Py_intptr_t; |
Tim Peters | 79248aa | 2001-08-29 21:37:10 +0000 | [diff] [blame] | 156 | |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 157 | #elif SIZEOF_VOID_P <= SIZEOF_INT |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 158 | typedef unsigned int Py_uintptr_t; |
| 159 | typedef int Py_intptr_t; |
Tim Peters | 79248aa | 2001-08-29 21:37:10 +0000 | [diff] [blame] | 160 | |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 161 | #elif SIZEOF_VOID_P <= SIZEOF_LONG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 162 | typedef unsigned long Py_uintptr_t; |
| 163 | typedef long Py_intptr_t; |
Tim Peters | 79248aa | 2001-08-29 21:37:10 +0000 | [diff] [blame] | 164 | |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 165 | #elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P <= SIZEOF_LONG_LONG) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 166 | typedef unsigned PY_LONG_LONG Py_uintptr_t; |
| 167 | typedef PY_LONG_LONG Py_intptr_t; |
Tim Peters | 79248aa | 2001-08-29 21:37:10 +0000 | [diff] [blame] | 168 | |
Barry Warsaw | fd847b2 | 2000-08-18 04:48:18 +0000 | [diff] [blame] | 169 | #else |
| 170 | # error "Python needs a typedef for Py_uintptr_t in pyport.h." |
| 171 | #endif /* HAVE_UINTPTR_T */ |
| 172 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 173 | /* Py_ssize_t is a signed integral type such that sizeof(Py_ssize_t) == |
| 174 | * sizeof(size_t). C99 doesn't define such a thing directly (size_t is an |
| 175 | * unsigned integral type). See PEP 353 for details. |
| 176 | */ |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 177 | #ifdef HAVE_SSIZE_T |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 178 | typedef ssize_t Py_ssize_t; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 179 | #elif SIZEOF_VOID_P == SIZEOF_SIZE_T |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 180 | typedef Py_intptr_t Py_ssize_t; |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 181 | #else |
| 182 | # error "Python needs a typedef for Py_ssize_t in pyport.h." |
| 183 | #endif |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 184 | |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 185 | /* Py_hash_t is the same size as a pointer. */ |
| 186 | typedef Py_ssize_t Py_hash_t; |
Benjamin Peterson | 8035bc5 | 2010-10-23 16:20:50 +0000 | [diff] [blame] | 187 | /* Py_uhash_t is the unsigned equivalent needed to calculate numeric hash. */ |
| 188 | typedef size_t Py_uhash_t; |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 189 | |
Amaury Forgeot d'Arc | 9c74b14 | 2008-06-18 00:47:36 +0000 | [diff] [blame] | 190 | /* Largest possible value of size_t. |
| 191 | SIZE_MAX is part of C99, so it might be defined on some |
| 192 | platforms. If it is not defined, (size_t)-1 is a portable |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 193 | definition for C89, due to the way signed->unsigned |
Amaury Forgeot d'Arc | 9c74b14 | 2008-06-18 00:47:36 +0000 | [diff] [blame] | 194 | conversion is defined. */ |
| 195 | #ifdef SIZE_MAX |
| 196 | #define PY_SIZE_MAX SIZE_MAX |
| 197 | #else |
| 198 | #define PY_SIZE_MAX ((size_t)-1) |
| 199 | #endif |
| 200 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 201 | /* Largest positive value of type Py_ssize_t. */ |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 202 | #define PY_SSIZE_T_MAX ((Py_ssize_t)(((size_t)-1)>>1)) |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 203 | /* Smallest negative value of type Py_ssize_t. */ |
| 204 | #define PY_SSIZE_T_MIN (-PY_SSIZE_T_MAX-1) |
| 205 | |
Christian Heimes | 400adb0 | 2008-02-01 08:12:03 +0000 | [diff] [blame] | 206 | #if SIZEOF_PID_T > SIZEOF_LONG |
| 207 | # error "Python doesn't support sizeof(pid_t) > sizeof(long)" |
| 208 | #endif |
| 209 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 210 | /* PY_FORMAT_SIZE_T is a platform-specific modifier for use in a printf |
| 211 | * format to convert an argument with the width of a size_t or Py_ssize_t. |
| 212 | * C99 introduced "z" for this purpose, but not all platforms support that; |
| 213 | * e.g., MS compilers use "I" instead. |
| 214 | * |
| 215 | * These "high level" Python format functions interpret "z" correctly on |
| 216 | * all platforms (Python interprets the format string itself, and does whatever |
| 217 | * the platform C requires to convert a size_t/Py_ssize_t argument): |
| 218 | * |
Christian Heimes | 72b710a | 2008-05-26 13:28:38 +0000 | [diff] [blame] | 219 | * PyBytes_FromFormat |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 220 | * PyErr_Format |
Christian Heimes | 72b710a | 2008-05-26 13:28:38 +0000 | [diff] [blame] | 221 | * PyBytes_FromFormatV |
Walter Dörwald | 7696ed7 | 2007-05-31 15:51:35 +0000 | [diff] [blame] | 222 | * PyUnicode_FromFormatV |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 223 | * |
| 224 | * Lower-level uses require that you interpolate the correct format modifier |
| 225 | * yourself (e.g., calling printf, fprintf, sprintf, PyOS_snprintf); for |
| 226 | * example, |
| 227 | * |
| 228 | * Py_ssize_t index; |
| 229 | * fprintf(stderr, "index %" PY_FORMAT_SIZE_T "d sucks\n", index); |
| 230 | * |
| 231 | * That will expand to %ld, or %Id, or to something else correct for a |
| 232 | * Py_ssize_t on the platform. |
| 233 | */ |
| 234 | #ifndef PY_FORMAT_SIZE_T |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 235 | # if SIZEOF_SIZE_T == SIZEOF_INT && !defined(__APPLE__) |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 236 | # define PY_FORMAT_SIZE_T "" |
| 237 | # elif SIZEOF_SIZE_T == SIZEOF_LONG |
| 238 | # define PY_FORMAT_SIZE_T "l" |
| 239 | # elif defined(MS_WINDOWS) |
| 240 | # define PY_FORMAT_SIZE_T "I" |
| 241 | # else |
| 242 | # error "This platform's pyconfig.h needs to define PY_FORMAT_SIZE_T" |
| 243 | # endif |
| 244 | #endif |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 245 | |
Mark Dickinson | 6ce4a9a | 2009-11-16 17:00:11 +0000 | [diff] [blame] | 246 | /* PY_FORMAT_LONG_LONG is analogous to PY_FORMAT_SIZE_T above, but for |
| 247 | * the long long type instead of the size_t type. It's only available |
| 248 | * when HAVE_LONG_LONG is defined. The "high level" Python format |
| 249 | * functions listed above will interpret "lld" or "llu" correctly on |
| 250 | * all platforms. |
| 251 | */ |
| 252 | #ifdef HAVE_LONG_LONG |
| 253 | # ifndef PY_FORMAT_LONG_LONG |
| 254 | # if defined(MS_WIN64) || defined(MS_WINDOWS) |
| 255 | # define PY_FORMAT_LONG_LONG "I64" |
| 256 | # else |
| 257 | # error "This platform's pyconfig.h needs to define PY_FORMAT_LONG_LONG" |
| 258 | # endif |
| 259 | # endif |
| 260 | #endif |
| 261 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 262 | /* Py_LOCAL can be used instead of static to get the fastest possible calling |
| 263 | * convention for functions that are local to a given module. |
| 264 | * |
| 265 | * Py_LOCAL_INLINE does the same thing, and also explicitly requests inlining, |
| 266 | * for platforms that support that. |
| 267 | * |
| 268 | * If PY_LOCAL_AGGRESSIVE is defined before python.h is included, more |
| 269 | * "aggressive" inlining/optimizaion is enabled for the entire module. This |
| 270 | * may lead to code bloat, and may slow things down for those reasons. It may |
| 271 | * also lead to errors, if the code relies on pointer aliasing. Use with |
| 272 | * care. |
| 273 | * |
| 274 | * NOTE: You can only use this for functions that are entirely local to a |
| 275 | * module; functions that are exported via method tables, callbacks, etc, |
| 276 | * should keep using static. |
| 277 | */ |
| 278 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 279 | #if defined(_MSC_VER) |
| 280 | #if defined(PY_LOCAL_AGGRESSIVE) |
| 281 | /* enable more aggressive optimization for visual studio */ |
| 282 | #pragma optimize("agtw", on) |
| 283 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 284 | /* ignore warnings if the compiler decides not to inline a function */ |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 285 | #pragma warning(disable: 4710) |
| 286 | /* fastest possible local call under MSVC */ |
| 287 | #define Py_LOCAL(type) static type __fastcall |
| 288 | #define Py_LOCAL_INLINE(type) static __inline type __fastcall |
| 289 | #elif defined(USE_INLINE) |
| 290 | #define Py_LOCAL(type) static type |
| 291 | #define Py_LOCAL_INLINE(type) static inline type |
| 292 | #else |
| 293 | #define Py_LOCAL(type) static type |
| 294 | #define Py_LOCAL_INLINE(type) static type |
| 295 | #endif |
| 296 | |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 297 | /* Py_MEMCPY can be used instead of memcpy in cases where the copied blocks |
| 298 | * are often very short. While most platforms have highly optimized code for |
| 299 | * large transfers, the setup costs for memcpy are often quite high. MEMCPY |
| 300 | * solves this by doing short copies "in line". |
| 301 | */ |
| 302 | |
| 303 | #if defined(_MSC_VER) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 304 | #define Py_MEMCPY(target, source, length) do { \ |
| 305 | size_t i_, n_ = (length); \ |
| 306 | char *t_ = (void*) (target); \ |
| 307 | const char *s_ = (void*) (source); \ |
| 308 | if (n_ >= 16) \ |
| 309 | memcpy(t_, s_, n_); \ |
| 310 | else \ |
| 311 | for (i_ = 0; i_ < n_; i_++) \ |
| 312 | t_[i_] = s_[i_]; \ |
| 313 | } while (0) |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 314 | #else |
| 315 | #define Py_MEMCPY memcpy |
| 316 | #endif |
| 317 | |
Peter Schneider-Kamp | 7e01890 | 2000-07-31 15:28:04 +0000 | [diff] [blame] | 318 | #include <stdlib.h> |
Peter Schneider-Kamp | 7e01890 | 2000-07-31 15:28:04 +0000 | [diff] [blame] | 319 | |
Mark Dickinson | a4962cb | 2009-11-28 12:35:42 +0000 | [diff] [blame] | 320 | #ifdef HAVE_IEEEFP_H |
| 321 | #include <ieeefp.h> /* needed for 'finite' declaration on some platforms */ |
| 322 | #endif |
| 323 | |
Vladimir Marangozov | 2c57e07 | 2000-08-11 11:48:33 +0000 | [diff] [blame] | 324 | #include <math.h> /* Moved here from the math section, before extern "C" */ |
| 325 | |
| 326 | /******************************************** |
| 327 | * WRAPPER FOR <time.h> and/or <sys/time.h> * |
| 328 | ********************************************/ |
| 329 | |
| 330 | #ifdef TIME_WITH_SYS_TIME |
| 331 | #include <sys/time.h> |
| 332 | #include <time.h> |
| 333 | #else /* !TIME_WITH_SYS_TIME */ |
| 334 | #ifdef HAVE_SYS_TIME_H |
| 335 | #include <sys/time.h> |
| 336 | #else /* !HAVE_SYS_TIME_H */ |
| 337 | #include <time.h> |
| 338 | #endif /* !HAVE_SYS_TIME_H */ |
| 339 | #endif /* !TIME_WITH_SYS_TIME */ |
| 340 | |
| 341 | |
| 342 | /****************************** |
| 343 | * WRAPPER FOR <sys/select.h> * |
| 344 | ******************************/ |
| 345 | |
| 346 | /* NB caller must include <sys/types.h> */ |
| 347 | |
| 348 | #ifdef HAVE_SYS_SELECT_H |
Vladimir Marangozov | 2c57e07 | 2000-08-11 11:48:33 +0000 | [diff] [blame] | 349 | #include <sys/select.h> |
Vladimir Marangozov | 2c57e07 | 2000-08-11 11:48:33 +0000 | [diff] [blame] | 350 | #endif /* !HAVE_SYS_SELECT_H */ |
| 351 | |
Tim Peters | 60f42b5 | 2001-01-18 03:03:16 +0000 | [diff] [blame] | 352 | /******************************* |
| 353 | * stat() and fstat() fiddling * |
| 354 | *******************************/ |
| 355 | |
| 356 | /* We expect that stat and fstat exist on most systems. |
| 357 | * It's confirmed on Unix, Mac and Windows. |
| 358 | * If you don't have them, add |
| 359 | * #define DONT_HAVE_STAT |
| 360 | * and/or |
| 361 | * #define DONT_HAVE_FSTAT |
Tim Peters | 76f373d | 2001-07-26 21:34:59 +0000 | [diff] [blame] | 362 | * to your pyconfig.h. Python code beyond this should check HAVE_STAT and |
Tim Peters | 60f42b5 | 2001-01-18 03:03:16 +0000 | [diff] [blame] | 363 | * HAVE_FSTAT instead. |
| 364 | * Also |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 365 | * #define HAVE_SYS_STAT_H |
| 366 | * if <sys/stat.h> exists on your platform, and |
Tim Peters | 60f42b5 | 2001-01-18 03:03:16 +0000 | [diff] [blame] | 367 | * #define HAVE_STAT_H |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 368 | * if <stat.h> does. |
Tim Peters | 60f42b5 | 2001-01-18 03:03:16 +0000 | [diff] [blame] | 369 | */ |
| 370 | #ifndef DONT_HAVE_STAT |
| 371 | #define HAVE_STAT |
| 372 | #endif |
| 373 | |
| 374 | #ifndef DONT_HAVE_FSTAT |
| 375 | #define HAVE_FSTAT |
| 376 | #endif |
| 377 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 378 | #ifdef HAVE_SYS_STAT_H |
Andrew MacIntyre | 5e090fc | 2002-02-26 11:20:01 +0000 | [diff] [blame] | 379 | #if defined(PYOS_OS2) && defined(PYCC_GCC) |
| 380 | #include <sys/types.h> |
| 381 | #endif |
Tim Peters | 60f42b5 | 2001-01-18 03:03:16 +0000 | [diff] [blame] | 382 | #include <sys/stat.h> |
| 383 | #elif defined(HAVE_STAT_H) |
| 384 | #include <stat.h> |
| 385 | #endif |
| 386 | |
Martin v. Löwis | f9836ba | 2001-08-08 10:28:06 +0000 | [diff] [blame] | 387 | #if defined(PYCC_VACPP) |
| 388 | /* VisualAge C/C++ Failed to Define MountType Field in sys/stat.h */ |
| 389 | #define S_IFMT (S_IFDIR|S_IFCHR|S_IFREG) |
| 390 | #endif |
| 391 | |
| 392 | #ifndef S_ISREG |
| 393 | #define S_ISREG(x) (((x) & S_IFMT) == S_IFREG) |
| 394 | #endif |
| 395 | |
| 396 | #ifndef S_ISDIR |
| 397 | #define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR) |
| 398 | #endif |
| 399 | |
Vladimir Marangozov | 2c57e07 | 2000-08-11 11:48:33 +0000 | [diff] [blame] | 400 | |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 401 | #ifdef __cplusplus |
Peter Schneider-Kamp | 7e01890 | 2000-07-31 15:28:04 +0000 | [diff] [blame] | 402 | /* Move this down here since some C++ #include's don't like to be included |
| 403 | inside an extern "C" */ |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 404 | extern "C" { |
| 405 | #endif |
| 406 | |
Vladimir Marangozov | 2c57e07 | 2000-08-11 11:48:33 +0000 | [diff] [blame] | 407 | |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 408 | /* Py_ARITHMETIC_RIGHT_SHIFT |
| 409 | * C doesn't define whether a right-shift of a signed integer sign-extends |
| 410 | * or zero-fills. Here a macro to force sign extension: |
| 411 | * Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) |
Mark Dickinson | 16f966e | 2009-03-20 23:23:15 +0000 | [diff] [blame] | 412 | * Return I >> J, forcing sign extension. Arithmetically, return the |
| 413 | * floor of I/2**J. |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 414 | * Requirements: |
Mark Dickinson | 16f966e | 2009-03-20 23:23:15 +0000 | [diff] [blame] | 415 | * I should have signed integer type. In the terminology of C99, this can |
| 416 | * be either one of the five standard signed integer types (signed char, |
| 417 | * short, int, long, long long) or an extended signed integer type. |
| 418 | * J is an integer >= 0 and strictly less than the number of bits in the |
| 419 | * type of I (because C doesn't define what happens for J outside that |
| 420 | * range either). |
| 421 | * TYPE used to specify the type of I, but is now ignored. It's been left |
| 422 | * in for backwards compatibility with versions <= 2.6 or 3.0. |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 423 | * Caution: |
| 424 | * I may be evaluated more than once. |
| 425 | */ |
| 426 | #ifdef SIGNED_RIGHT_SHIFT_ZERO_FILLS |
| 427 | #define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 428 | ((I) < 0 ? -1-((-1-(I)) >> (J)) : (I) >> (J)) |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 429 | #else |
| 430 | #define Py_ARITHMETIC_RIGHT_SHIFT(TYPE, I, J) ((I) >> (J)) |
| 431 | #endif |
| 432 | |
Tim Peters | 39dce29 | 2000-08-15 03:34:48 +0000 | [diff] [blame] | 433 | /* Py_FORCE_EXPANSION(X) |
Tim Peters | 1be4684 | 2000-07-23 18:10:18 +0000 | [diff] [blame] | 434 | * "Simply" returns its argument. However, macro expansions within the |
| 435 | * argument are evaluated. This unfortunate trickery is needed to get |
| 436 | * token-pasting to work as desired in some cases. |
| 437 | */ |
| 438 | #define Py_FORCE_EXPANSION(X) X |
| 439 | |
Tim Peters | 8315ea5 | 2000-07-23 19:28:35 +0000 | [diff] [blame] | 440 | /* Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) |
| 441 | * Cast VALUE to type NARROW from type WIDE. In Py_DEBUG mode, this |
| 442 | * assert-fails if any information is lost. |
| 443 | * Caution: |
| 444 | * VALUE may be evaluated more than once. |
| 445 | */ |
| 446 | #ifdef Py_DEBUG |
| 447 | #define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 448 | (assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE)) |
Tim Peters | 8315ea5 | 2000-07-23 19:28:35 +0000 | [diff] [blame] | 449 | #else |
| 450 | #define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE) |
| 451 | #endif |
| 452 | |
Hye-Shik Chang | 77d9a3e | 2004-03-22 08:43:55 +0000 | [diff] [blame] | 453 | /* Py_SET_ERRNO_ON_MATH_ERROR(x) |
Tim Peters | a40c793 | 2001-09-05 22:36:56 +0000 | [diff] [blame] | 454 | * If a libm function did not set errno, but it looks like the result |
Hye-Shik Chang | 77d9a3e | 2004-03-22 08:43:55 +0000 | [diff] [blame] | 455 | * overflowed or not-a-number, set errno to ERANGE or EDOM. Set errno |
| 456 | * to 0 before calling a libm function, and invoke this macro after, |
| 457 | * passing the function result. |
Tim Peters | a40c793 | 2001-09-05 22:36:56 +0000 | [diff] [blame] | 458 | * Caution: |
| 459 | * This isn't reliable. See Py_OVERFLOWED comments. |
| 460 | * X is evaluated more than once. |
| 461 | */ |
Guido van Rossum | 539c662 | 2005-09-14 17:49:54 +0000 | [diff] [blame] | 462 | #if defined(__FreeBSD__) || defined(__OpenBSD__) || (defined(__hpux) && defined(__ia64)) |
Hye-Shik Chang | 77d9a3e | 2004-03-22 08:43:55 +0000 | [diff] [blame] | 463 | #define _Py_SET_EDOM_FOR_NAN(X) if (isnan(X)) errno = EDOM; |
| 464 | #else |
| 465 | #define _Py_SET_EDOM_FOR_NAN(X) ; |
| 466 | #endif |
| 467 | #define Py_SET_ERRNO_ON_MATH_ERROR(X) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 468 | do { \ |
| 469 | if (errno == 0) { \ |
| 470 | if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \ |
| 471 | errno = ERANGE; \ |
| 472 | else _Py_SET_EDOM_FOR_NAN(X) \ |
| 473 | } \ |
| 474 | } while(0) |
Tim Peters | 57f282a | 2001-09-05 05:38:10 +0000 | [diff] [blame] | 475 | |
Hye-Shik Chang | 77d9a3e | 2004-03-22 08:43:55 +0000 | [diff] [blame] | 476 | /* Py_SET_ERANGE_ON_OVERFLOW(x) |
| 477 | * An alias of Py_SET_ERRNO_ON_MATH_ERROR for backward-compatibility. |
| 478 | */ |
| 479 | #define Py_SET_ERANGE_IF_OVERFLOW(X) Py_SET_ERRNO_ON_MATH_ERROR(X) |
| 480 | |
Tim Peters | dc5a508 | 2002-03-09 04:58:24 +0000 | [diff] [blame] | 481 | /* Py_ADJUST_ERANGE1(x) |
| 482 | * Py_ADJUST_ERANGE2(x, y) |
| 483 | * Set errno to 0 before calling a libm function, and invoke one of these |
| 484 | * macros after, passing the function result(s) (Py_ADJUST_ERANGE2 is useful |
| 485 | * for functions returning complex results). This makes two kinds of |
| 486 | * adjustments to errno: (A) If it looks like the platform libm set |
| 487 | * errno=ERANGE due to underflow, clear errno. (B) If it looks like the |
| 488 | * platform libm overflowed but didn't set errno, force errno to ERANGE. In |
| 489 | * effect, we're trying to force a useful implementation of C89 errno |
| 490 | * behavior. |
| 491 | * Caution: |
| 492 | * This isn't reliable. See Py_OVERFLOWED comments. |
| 493 | * X and Y may be evaluated more than once. |
| 494 | */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 495 | #define Py_ADJUST_ERANGE1(X) \ |
| 496 | do { \ |
| 497 | if (errno == 0) { \ |
| 498 | if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL) \ |
| 499 | errno = ERANGE; \ |
| 500 | } \ |
| 501 | else if (errno == ERANGE && (X) == 0.0) \ |
| 502 | errno = 0; \ |
| 503 | } while(0) |
Tim Peters | dc5a508 | 2002-03-09 04:58:24 +0000 | [diff] [blame] | 504 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 505 | #define Py_ADJUST_ERANGE2(X, Y) \ |
| 506 | do { \ |
| 507 | if ((X) == Py_HUGE_VAL || (X) == -Py_HUGE_VAL || \ |
| 508 | (Y) == Py_HUGE_VAL || (Y) == -Py_HUGE_VAL) { \ |
| 509 | if (errno == 0) \ |
| 510 | errno = ERANGE; \ |
| 511 | } \ |
| 512 | else if (errno == ERANGE) \ |
| 513 | errno = 0; \ |
| 514 | } while(0) |
Tim Peters | dc5a508 | 2002-03-09 04:58:24 +0000 | [diff] [blame] | 515 | |
Mark Dickinson | a4262b9 | 2009-04-19 11:35:55 +0000 | [diff] [blame] | 516 | /* The functions _Py_dg_strtod and _Py_dg_dtoa in Python/dtoa.c (which are |
| 517 | * required to support the short float repr introduced in Python 3.1) require |
| 518 | * that the floating-point unit that's being used for arithmetic operations |
| 519 | * on C doubles is set to use 53-bit precision. It also requires that the |
| 520 | * FPU rounding mode is round-half-to-even, but that's less often an issue. |
| 521 | * |
| 522 | * If your FPU isn't already set to 53-bit precision/round-half-to-even, and |
| 523 | * you want to make use of _Py_dg_strtod and _Py_dg_dtoa, then you should |
| 524 | * |
| 525 | * #define HAVE_PY_SET_53BIT_PRECISION 1 |
| 526 | * |
| 527 | * and also give appropriate definitions for the following three macros: |
| 528 | * |
| 529 | * _PY_SET_53BIT_PRECISION_START : store original FPU settings, and |
| 530 | * set FPU to 53-bit precision/round-half-to-even |
| 531 | * _PY_SET_53BIT_PRECISION_END : restore original FPU settings |
| 532 | * _PY_SET_53BIT_PRECISION_HEADER : any variable declarations needed to |
| 533 | * use the two macros above. |
| 534 | * |
| 535 | * The macros are designed to be used within a single C function: see |
| 536 | * Python/pystrtod.c for an example of their use. |
| 537 | */ |
Mark Dickinson | b08a53a | 2009-04-16 19:52:09 +0000 | [diff] [blame] | 538 | |
Mark Dickinson | a4262b9 | 2009-04-19 11:35:55 +0000 | [diff] [blame] | 539 | /* get and set x87 control word for gcc/x86 */ |
Mark Dickinson | 7abf8d4 | 2009-04-18 20:17:52 +0000 | [diff] [blame] | 540 | #ifdef HAVE_GCC_ASM_FOR_X87 |
Mark Dickinson | a4262b9 | 2009-04-19 11:35:55 +0000 | [diff] [blame] | 541 | #define HAVE_PY_SET_53BIT_PRECISION 1 |
| 542 | /* _Py_get/set_387controlword functions are defined in Python/pymath.c */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 543 | #define _Py_SET_53BIT_PRECISION_HEADER \ |
| 544 | unsigned short old_387controlword, new_387controlword |
| 545 | #define _Py_SET_53BIT_PRECISION_START \ |
| 546 | do { \ |
| 547 | old_387controlword = _Py_get_387controlword(); \ |
| 548 | new_387controlword = (old_387controlword & ~0x0f00) | 0x0200; \ |
| 549 | if (new_387controlword != old_387controlword) \ |
| 550 | _Py_set_387controlword(new_387controlword); \ |
| 551 | } while (0) |
| 552 | #define _Py_SET_53BIT_PRECISION_END \ |
| 553 | if (new_387controlword != old_387controlword) \ |
| 554 | _Py_set_387controlword(old_387controlword) |
Mark Dickinson | a4262b9 | 2009-04-19 11:35:55 +0000 | [diff] [blame] | 555 | #endif |
| 556 | |
| 557 | /* default definitions are empty */ |
| 558 | #ifndef HAVE_PY_SET_53BIT_PRECISION |
Mark Dickinson | b08a53a | 2009-04-16 19:52:09 +0000 | [diff] [blame] | 559 | #define _Py_SET_53BIT_PRECISION_HEADER |
| 560 | #define _Py_SET_53BIT_PRECISION_START |
| 561 | #define _Py_SET_53BIT_PRECISION_END |
| 562 | #endif |
| 563 | |
| 564 | /* If we can't guarantee 53-bit precision, don't use the code |
| 565 | in Python/dtoa.c, but fall back to standard code. This |
| 566 | means that repr of a float will be long (17 sig digits). |
| 567 | |
| 568 | Realistically, there are two things that could go wrong: |
| 569 | |
| 570 | (1) doubles aren't IEEE 754 doubles, or |
| 571 | (2) we're on x86 with the rounding precision set to 64-bits |
| 572 | (extended precision), and we don't know how to change |
| 573 | the rounding precision. |
| 574 | */ |
| 575 | |
| 576 | #if !defined(DOUBLE_IS_LITTLE_ENDIAN_IEEE754) && \ |
| 577 | !defined(DOUBLE_IS_BIG_ENDIAN_IEEE754) && \ |
| 578 | !defined(DOUBLE_IS_ARM_MIXED_ENDIAN_IEEE754) |
| 579 | #define PY_NO_SHORT_FLOAT_REPR |
| 580 | #endif |
| 581 | |
Mark Dickinson | 60fd099 | 2009-04-18 10:16:35 +0000 | [diff] [blame] | 582 | /* double rounding is symptomatic of use of extended precision on x86. If |
| 583 | we're seeing double rounding, and we don't have any mechanism available for |
| 584 | changing the FPU rounding precision, then don't use Python/dtoa.c. */ |
Mark Dickinson | a4262b9 | 2009-04-19 11:35:55 +0000 | [diff] [blame] | 585 | #if defined(X87_DOUBLE_ROUNDING) && !defined(HAVE_PY_SET_53BIT_PRECISION) |
Mark Dickinson | b08a53a | 2009-04-16 19:52:09 +0000 | [diff] [blame] | 586 | #define PY_NO_SHORT_FLOAT_REPR |
| 587 | #endif |
| 588 | |
| 589 | |
Neal Norwitz | 8029264 | 2002-12-19 15:12:26 +0000 | [diff] [blame] | 590 | /* Py_DEPRECATED(version) |
Neal Norwitz | 93344ab | 2002-12-19 15:24:11 +0000 | [diff] [blame] | 591 | * Declare a variable, type, or function deprecated. |
Neal Norwitz | 8029264 | 2002-12-19 15:12:26 +0000 | [diff] [blame] | 592 | * Usage: |
| 593 | * extern int old_var Py_DEPRECATED(2.3); |
| 594 | * typedef int T1 Py_DEPRECATED(2.4); |
| 595 | * extern int x() Py_DEPRECATED(2.5); |
| 596 | */ |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 597 | #if defined(__GNUC__) && ((__GNUC__ >= 4) || \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 598 | (__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)) |
Neal Norwitz | 8029264 | 2002-12-19 15:12:26 +0000 | [diff] [blame] | 599 | #define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__)) |
| 600 | #else |
Tim Peters | 4643bd9 | 2002-12-28 21:56:08 +0000 | [diff] [blame] | 601 | #define Py_DEPRECATED(VERSION_UNUSED) |
Neal Norwitz | 8029264 | 2002-12-19 15:12:26 +0000 | [diff] [blame] | 602 | #endif |
| 603 | |
Thomas Wouters | 1e0c2f4 | 2000-07-24 16:06:23 +0000 | [diff] [blame] | 604 | /************************************************************************** |
| 605 | Prototypes that are missing from the standard include files on some systems |
| 606 | (and possibly only some versions of such systems.) |
| 607 | |
| 608 | Please be conservative with adding new ones, document them and enclose them |
| 609 | in platform-specific #ifdefs. |
| 610 | **************************************************************************/ |
| 611 | |
| 612 | #ifdef SOLARIS |
| 613 | /* Unchecked */ |
| 614 | extern int gethostname(char *, int); |
| 615 | #endif |
| 616 | |
Thomas Wouters | 1e0c2f4 | 2000-07-24 16:06:23 +0000 | [diff] [blame] | 617 | #ifdef HAVE__GETPTY |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 618 | #include <sys/types.h> /* we need to import mode_t */ |
Thomas Wouters | 1e0c2f4 | 2000-07-24 16:06:23 +0000 | [diff] [blame] | 619 | extern char * _getpty(int *, int, mode_t, int); |
| 620 | #endif |
| 621 | |
Georg Brandl | f78e02b | 2008-06-10 17:40:04 +0000 | [diff] [blame] | 622 | /* On QNX 6, struct termio must be declared by including sys/termio.h |
| 623 | if TCGETA, TCSETA, TCSETAW, or TCSETAF are used. sys/termio.h must |
| 624 | be included before termios.h or it will generate an error. */ |
| 625 | #ifdef HAVE_SYS_TERMIO_H |
| 626 | #include <sys/termio.h> |
| 627 | #endif |
| 628 | |
Thomas Wouters | 1e0c2f4 | 2000-07-24 16:06:23 +0000 | [diff] [blame] | 629 | #if defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) |
| 630 | #if !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) |
| 631 | /* BSDI does not supply a prototype for the 'openpty' and 'forkpty' |
| 632 | functions, even though they are included in libutil. */ |
| 633 | #include <termios.h> |
| 634 | extern int openpty(int *, int *, char *, struct termios *, struct winsize *); |
Christian Heimes | 400adb0 | 2008-02-01 08:12:03 +0000 | [diff] [blame] | 635 | extern pid_t forkpty(int *, char *, struct termios *, struct winsize *); |
Thomas Wouters | 1e0c2f4 | 2000-07-24 16:06:23 +0000 | [diff] [blame] | 636 | #endif /* !defined(HAVE_PTY_H) && !defined(HAVE_LIBUTIL_H) */ |
| 637 | #endif /* defined(HAVE_OPENPTY) || defined(HAVE_FORKPTY) */ |
| 638 | |
| 639 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 640 | /* On 4.4BSD-descendants, ctype functions serves the whole range of |
| 641 | * wchar_t character set rather than single byte code points only. |
| 642 | * This characteristic can break some operations of string object |
| 643 | * including str.upper() and str.split() on UTF-8 locales. This |
| 644 | * workaround was provided by Tim Robbins of FreeBSD project. |
| 645 | */ |
Hye-Shik Chang | b5047fd | 2004-08-04 06:33:51 +0000 | [diff] [blame] | 646 | |
| 647 | #ifdef __FreeBSD__ |
| 648 | #include <osreldate.h> |
| 649 | #if __FreeBSD_version > 500039 |
Ronald Oussoren | 501aeff | 2010-04-18 15:02:38 +0000 | [diff] [blame] | 650 | # define _PY_PORT_CTYPE_UTF8_ISSUE |
| 651 | #endif |
| 652 | #endif |
| 653 | |
| 654 | |
| 655 | #if defined(__APPLE__) |
| 656 | # define _PY_PORT_CTYPE_UTF8_ISSUE |
| 657 | #endif |
| 658 | |
| 659 | #ifdef _PY_PORT_CTYPE_UTF8_ISSUE |
Hye-Shik Chang | b5047fd | 2004-08-04 06:33:51 +0000 | [diff] [blame] | 660 | #include <ctype.h> |
| 661 | #include <wctype.h> |
| 662 | #undef isalnum |
| 663 | #define isalnum(c) iswalnum(btowc(c)) |
| 664 | #undef isalpha |
| 665 | #define isalpha(c) iswalpha(btowc(c)) |
| 666 | #undef islower |
| 667 | #define islower(c) iswlower(btowc(c)) |
| 668 | #undef isspace |
| 669 | #define isspace(c) iswspace(btowc(c)) |
| 670 | #undef isupper |
| 671 | #define isupper(c) iswupper(btowc(c)) |
| 672 | #undef tolower |
| 673 | #define tolower(c) towlower(btowc(c)) |
| 674 | #undef toupper |
| 675 | #define toupper(c) towupper(btowc(c)) |
| 676 | #endif |
Hye-Shik Chang | b5047fd | 2004-08-04 06:33:51 +0000 | [diff] [blame] | 677 | |
| 678 | |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 679 | /* Declarations for symbol visibility. |
| 680 | |
| 681 | PyAPI_FUNC(type): Declares a public Python API function and return type |
Tim Peters | 4643bd9 | 2002-12-28 21:56:08 +0000 | [diff] [blame] | 682 | PyAPI_DATA(type): Declares public Python data and its type |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 683 | PyMODINIT_FUNC: A Python module init function. If these functions are |
Tim Peters | 4643bd9 | 2002-12-28 21:56:08 +0000 | [diff] [blame] | 684 | inside the Python core, they are private to the core. |
| 685 | If in an extension module, it may be declared with |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 686 | external linkage depending on the platform. |
| 687 | |
| 688 | As a number of platforms support/require "__declspec(dllimport/dllexport)", |
| 689 | we support a HAVE_DECLSPEC_DLL macro to save duplication. |
| 690 | */ |
| 691 | |
Tim Peters | 4643bd9 | 2002-12-28 21:56:08 +0000 | [diff] [blame] | 692 | /* |
Michael W. Hudson | f163d10 | 2003-02-10 19:36:46 +0000 | [diff] [blame] | 693 | All windows ports, except cygwin, are handled in PC/pyconfig.h. |
| 694 | |
Skip Montanaro | eb33e5a | 2007-08-17 12:57:41 +0000 | [diff] [blame] | 695 | Cygwin is the only other autoconf platform requiring special |
| 696 | linkage handling and it uses __declspec(). |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 697 | */ |
Skip Montanaro | eb33e5a | 2007-08-17 12:57:41 +0000 | [diff] [blame] | 698 | #if defined(__CYGWIN__) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 699 | # define HAVE_DECLSPEC_DLL |
Peter Schneider-Kamp | 7e01890 | 2000-07-31 15:28:04 +0000 | [diff] [blame] | 700 | #endif |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 701 | |
Jason Tishler | 3076559 | 2003-09-04 11:04:06 +0000 | [diff] [blame] | 702 | /* only get special linkage if built as shared or platform is Cygwin */ |
| 703 | #if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 704 | # if defined(HAVE_DECLSPEC_DLL) |
| 705 | # ifdef Py_BUILD_CORE |
| 706 | # define PyAPI_FUNC(RTYPE) __declspec(dllexport) RTYPE |
| 707 | # define PyAPI_DATA(RTYPE) extern __declspec(dllexport) RTYPE |
Daniel Stutzbach | 3861599 | 2010-09-14 16:02:01 +0000 | [diff] [blame] | 708 | /* module init functions inside the core need no external linkage */ |
| 709 | /* except for Cygwin to handle embedding */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 710 | # if defined(__CYGWIN__) |
| 711 | # define PyMODINIT_FUNC __declspec(dllexport) PyObject* |
| 712 | # else /* __CYGWIN__ */ |
| 713 | # define PyMODINIT_FUNC PyObject* |
| 714 | # endif /* __CYGWIN__ */ |
| 715 | # else /* Py_BUILD_CORE */ |
Daniel Stutzbach | 3861599 | 2010-09-14 16:02:01 +0000 | [diff] [blame] | 716 | /* Building an extension module, or an embedded situation */ |
| 717 | /* public Python functions and data are imported */ |
| 718 | /* Under Cygwin, auto-import functions to prevent compilation */ |
| 719 | /* failures similar to those described at the bottom of 4.1: */ |
| 720 | /* http://docs.python.org/extending/windows.html#a-cookbook-approach */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 721 | # if !defined(__CYGWIN__) |
| 722 | # define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE |
| 723 | # endif /* !__CYGWIN__ */ |
| 724 | # define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE |
Daniel Stutzbach | 3861599 | 2010-09-14 16:02:01 +0000 | [diff] [blame] | 725 | /* module init functions outside the core must be exported */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 726 | # if defined(__cplusplus) |
| 727 | # define PyMODINIT_FUNC extern "C" __declspec(dllexport) PyObject* |
| 728 | # else /* __cplusplus */ |
| 729 | # define PyMODINIT_FUNC __declspec(dllexport) PyObject* |
| 730 | # endif /* __cplusplus */ |
| 731 | # endif /* Py_BUILD_CORE */ |
| 732 | # endif /* HAVE_DECLSPEC */ |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 733 | #endif /* Py_ENABLE_SHARED */ |
| 734 | |
| 735 | /* If no external linkage macros defined by now, create defaults */ |
| 736 | #ifndef PyAPI_FUNC |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 737 | # define PyAPI_FUNC(RTYPE) RTYPE |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 738 | #endif |
| 739 | #ifndef PyAPI_DATA |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 740 | # define PyAPI_DATA(RTYPE) extern RTYPE |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 741 | #endif |
| 742 | #ifndef PyMODINIT_FUNC |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 743 | # if defined(__cplusplus) |
| 744 | # define PyMODINIT_FUNC extern "C" PyObject* |
| 745 | # else /* __cplusplus */ |
| 746 | # define PyMODINIT_FUNC PyObject* |
| 747 | # endif /* __cplusplus */ |
Mark Hammond | 8235ea1 | 2002-07-19 06:55:41 +0000 | [diff] [blame] | 748 | #endif |
| 749 | |
Fred Drake | d5fadf7 | 2000-09-26 05:46:01 +0000 | [diff] [blame] | 750 | /* limits.h constants that may be missing */ |
| 751 | |
| 752 | #ifndef INT_MAX |
| 753 | #define INT_MAX 2147483647 |
| 754 | #endif |
| 755 | |
| 756 | #ifndef LONG_MAX |
| 757 | #if SIZEOF_LONG == 4 |
| 758 | #define LONG_MAX 0X7FFFFFFFL |
| 759 | #elif SIZEOF_LONG == 8 |
| 760 | #define LONG_MAX 0X7FFFFFFFFFFFFFFFL |
| 761 | #else |
| 762 | #error "could not set LONG_MAX in pyport.h" |
| 763 | #endif |
| 764 | #endif |
| 765 | |
| 766 | #ifndef LONG_MIN |
| 767 | #define LONG_MIN (-LONG_MAX-1) |
| 768 | #endif |
| 769 | |
Tim Peters | d57731f | 2000-10-05 01:42:25 +0000 | [diff] [blame] | 770 | #ifndef LONG_BIT |
| 771 | #define LONG_BIT (8 * SIZEOF_LONG) |
| 772 | #endif |
| 773 | |
| 774 | #if LONG_BIT != 8 * SIZEOF_LONG |
| 775 | /* 04-Oct-2000 LONG_BIT is apparently (mis)defined as 64 on some recent |
| 776 | * 32-bit platforms using gcc. We try to catch that here at compile-time |
| 777 | * rather than waiting for integer multiplication to trigger bogus |
| 778 | * overflows. |
| 779 | */ |
Andrew M. Kuchling | 234fb63 | 2001-01-12 15:06:28 +0000 | [diff] [blame] | 780 | #error "LONG_BIT definition appears wrong for platform (bad gcc/glibc config?)." |
Tim Peters | d57731f | 2000-10-05 01:42:25 +0000 | [diff] [blame] | 781 | #endif |
| 782 | |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 783 | #ifdef __cplusplus |
| 784 | } |
| 785 | #endif |
| 786 | |
Neil Schemenauer | 1569108 | 2001-10-23 02:20:37 +0000 | [diff] [blame] | 787 | /* |
| 788 | * Hide GCC attributes from compilers that don't support them. |
| 789 | */ |
Guido van Rossum | bd67d6f | 2001-10-27 21:16:16 +0000 | [diff] [blame] | 790 | #if (!defined(__GNUC__) || __GNUC__ < 2 || \ |
Skip Montanaro | 7a98be2 | 2007-08-16 14:35:24 +0000 | [diff] [blame] | 791 | (__GNUC__ == 2 && __GNUC_MINOR__ < 7) ) |
Neil Schemenauer | 96aa0ac | 2002-09-15 14:09:54 +0000 | [diff] [blame] | 792 | #define Py_GCC_ATTRIBUTE(x) |
| 793 | #else |
| 794 | #define Py_GCC_ATTRIBUTE(x) __attribute__(x) |
Neil Schemenauer | 1569108 | 2001-10-23 02:20:37 +0000 | [diff] [blame] | 795 | #endif |
| 796 | |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 797 | /* |
| 798 | * Add PyArg_ParseTuple format where available. |
| 799 | */ |
| 800 | #ifdef HAVE_ATTRIBUTE_FORMAT_PARSETUPLE |
| 801 | #define Py_FORMAT_PARSETUPLE(func,p1,p2) __attribute__((format(func,p1,p2))) |
| 802 | #else |
| 803 | #define Py_FORMAT_PARSETUPLE(func,p1,p2) |
| 804 | #endif |
| 805 | |
Benjamin Peterson | 058e31e | 2009-01-16 03:54:08 +0000 | [diff] [blame] | 806 | /* |
| 807 | * Specify alignment on compilers that support it. |
| 808 | */ |
| 809 | #if defined(__GNUC__) && __GNUC__ >= 3 |
| 810 | #define Py_ALIGNED(x) __attribute__((aligned(x))) |
| 811 | #else |
| 812 | #define Py_ALIGNED(x) |
| 813 | #endif |
| 814 | |
Nicholas Bastin | 9ba301e | 2004-07-15 15:54:05 +0000 | [diff] [blame] | 815 | /* Eliminate end-of-loop code not reached warnings from SunPro C |
| 816 | * when using do{...}while(0) macros |
| 817 | */ |
| 818 | #ifdef __SUNPRO_C |
| 819 | #pragma error_messages (off,E_END_OF_LOOP_CODE_NOT_REACHED) |
| 820 | #endif |
| 821 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 822 | /* |
| 823 | * Older Microsoft compilers don't support the C99 long long literal suffixes, |
| 824 | * so these will be defined in PC/pyconfig.h for those compilers. |
| 825 | */ |
| 826 | #ifndef Py_LL |
| 827 | #define Py_LL(x) x##LL |
| 828 | #endif |
| 829 | |
| 830 | #ifndef Py_ULL |
| 831 | #define Py_ULL(x) Py_LL(x##U) |
| 832 | #endif |
| 833 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 834 | #ifdef VA_LIST_IS_ARRAY |
| 835 | #define Py_VA_COPY(x, y) Py_MEMCPY((x), (y), sizeof(va_list)) |
| 836 | #else |
| 837 | #ifdef __va_copy |
| 838 | #define Py_VA_COPY __va_copy |
| 839 | #else |
| 840 | #define Py_VA_COPY(x, y) (x) = (y) |
| 841 | #endif |
| 842 | #endif |
| 843 | |
Tim Peters | 7d3a511 | 2000-07-08 04:17:21 +0000 | [diff] [blame] | 844 | #endif /* Py_PYPORT_H */ |