1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596
|
#ifndef MX_H
#define MX_H
/*
mx -- Marc's eXtension modules for Python: basic macros
This file is only meant to be included by the extension modules.
DO NOT include it in the extension module's header file, since it
will definitely cause troubles then.
To enable debugging ceratin things, define one of these before
including this file:
MAL_REF_DEBUG -- debug reference counts (Py_MY_xxx) [this file]
MAL_DEBUG -- enable debug output (DPRINTF) [mxstdlib.h]
MAL_MEM_DEBUG -- enable malloc output (new,cnew,free,...) [mxstdlib.h]
Copyright (c) 2000, Marc-Andre Lemburg; mailto:mal@lemburg.com
Copyright (c) 2000-2014, eGenix.com Software GmbH; mailto:info@egenix.com
See the documentation for further copyright information or contact
the author.
XXX Most of these macros and defines should really use an mx prefix to
avoid collisions with native Python macros and defines. So far this
has not happened, which is why this hasn't been implemented yet.
*/
/* --- Platform or compiler specific tweaks ------------------------------- */
/* Add some platform specific symbols to enable work-arounds for the
static forward declaration of type definitions; note that the GNU C
compiler does not have this problem.
Many thanks to all who have contributed to this list.
*/
#ifndef BAD_STATIC_FORWARD
# if (!defined(__GNUC__))
# if (defined(NeXT) || defined(sgi) || defined(_AIX) || (defined(__osf__) && defined(__DECC)) || defined(TrueCompaq64) || defined(__VMS))
# define BAD_STATIC_FORWARD
# endif
# endif
#endif
/* Some more tweaks for various platforms. */
/* VMS needs this define. Thanks to Jean-Franois PIRONNE */
#if defined(__VMS)
# define __SC__
#endif
/* xlC on AIX doesn't like the Python work-around for static forwards
in ANSI mode (default), so we switch on extended mode. Thanks to
Albert Chin-A-Young */
#if defined(__xlC__)
# pragma langlvl extended
#endif
/* --- Standard header files ---------------------------------------------- */
/* Include the generic mx header file */
#include "mxh.h"
/* Include nearly all Python symbols & definitions */
#include "Python.h"
/* Include other standard stuff */
#include "mxstdlib.h"
/* Include Python backward compatibility stuff */
#include "mxpyapi.h"
/* --- Compiler support --------------------------------------------------- */
/* Support for compilers which don't like static forward declarations
of arrays; Python 2.3 removed the support for BAD_STATIC_FORWARD
which is why we now use our own little helpers here. */
#undef staticforward
#undef statichere
#ifdef BAD_STATIC_FORWARD
# define staticforward extern
# define statichere static
#else
# define staticforward static
# define statichere static
#endif
/* --- Declare macros ----------------------------------------------------- */
#define Py_NONE (Py_INCREF(Py_None),Py_None)
#ifdef MAL_REF_DEBUG
# define printref(x) printf("* refcount for "#x" = %i\n",(long) x->ob_refcnt);
#else
# define printref(x)
#endif
/* --- Error handling ----------------------------------------------------- */
#define Py_Do(x) {if (!(x)) goto onError;}
#define Py_ReturnOnError(errortype,errorstr) {PyErr_SetString(errortype,errorstr);return NULL;}
#define Py_Assert(x,errortype,errorstr) {if (!(x)) {PyErr_SetString(errortype,errorstr);goto onError;}}
#define Py_AssertWithArg(x,errortype,errorstr,a1) {if (!(x)) {PyErr_Format(errortype,errorstr,a1);goto onError;}}
#define Py_AssertWith2Args(x,errortype,errorstr,a1,a2) {if (!(x)) {PyErr_Format(errortype,errorstr,a1,a2);goto onError;}}
#define Py_AssertWith3Args(x,errortype,errorstr,a1,a2,a3) {if (!(x)) {PyErr_Format(errortype,errorstr,a1,a2,a3);goto onError;}}
#define Py_Error(errortype,errorstr) {PyErr_SetString(errortype,errorstr);goto onError;}
#define Py_ErrorWithArg(errortype,errorstr,a1) {PyErr_Format(errortype,errorstr,a1);goto onError;}
#define Py_ErrorWith2Args(errortype,errorstr,a1,a2) {PyErr_Format(errortype,errorstr,a1,a2);goto onError;}
#define Py_ErrorWith3Args(errortype,errorstr,a1,a2,a3) {PyErr_Format(errortype,errorstr,a1,a2,a3);goto onError;}
/* --- Reference counting ------------------------------------------------- */
#ifdef MAL_REF_DEBUG
static void mx_Py_INCREF(PyObject *v,
const char *name,
const char *filename,
int lineno)
{
if (!Py_DebugFlag) {
Py_XINCREF(v);
return;
}
if (!v)
mxDebugPrintf("[%s:%5i] Py_XINCREF( %-8s == NULL );\n",
filename,lineno,name);
else {
Py_INCREF(v);;
mxDebugPrintf("[%s:%5i] Py_XINCREF( %-8s at 0x%lx [%s]); "
"new refcount = %i\n",
filename,lineno,name,(long)v,v->ob_type->tp_name,
v->ob_refcnt);
}
}
static void mx_Py_DECREF(PyObject *v,
const char *name,
const char *filename,
int lineno)
{
if (!Py_DebugFlag) {
Py_XDECREF(v);
return;
}
if (!v)
mxDebugPrintf("[%s:%5i] Py_XDECREF( %-8s == NULL );\n",
filename,lineno,name);
else {
int refcnt = v->ob_refcnt;
Py_DECREF(v);
if (refcnt <= 1)
mxDebugPrintf("[%s:%5i] Py_XDECREF( %-8s at 0x%lx [%s]); "
"object deleted\n",
filename,lineno,name,(long)v,v->ob_type->tp_name);
else
mxDebugPrintf("[%s:%5i] Py_XDECREF( %-8s at 0x%lx [%s]); "
"new refcount = %i\n",
filename,lineno,name,(long)v,v->ob_type->tp_name,
v->ob_refcnt);
}
}
static void mx_Py_PRINT_REFCOUNT(PyObject *v,
const char *name,
const char *filename,
int lineno)
{
if (!Py_DebugFlag)
return;
if (!v)
mxDebugPrintf("[%s:%5i] Py_PRINT_REFCOUNT( %-8s == NULL );\n",
filename,lineno,name);
else {
mxDebugPrintf("[%s:%5i] Py_PRINT_REFCOUNT( %-8s at 0x%lx [%s]) = %i;\n",
filename,lineno,name,(long)v,v->ob_type->tp_name,
v->ob_refcnt);
}
}
# undef Py_INCREF
# define Py_INCREF(x) mx_Py_INCREF((PyObject *)x,#x,__FILE__,__LINE__)
# undef Py_DECREF
# define Py_DECREF(x) mx_Py_DECREF((PyObject *)x,#x,__FILE__,__LINE__)
# undef Py_XINCREF
# define Py_XINCREF(x) mx_Py_INCREF((PyObject *)x,#x,__FILE__,__LINE__)
# undef Py_XDECREF
# define Py_XDECREF(x) mx_Py_DECREF((PyObject *)x,#x,__FILE__,__LINE__)
# undef Py_CLEAR
# define Py_CLEAR(x) {Py_XDECREF(x); x=0;}
# define Py_DELETE(x) {if (x->ob_refcnt > 1) mxDebugPrintf("[%s:%5i] Py_DELETE( "#x" ) WARNING: Refcount = %i > 1\n",__FILE__,__LINE__,(int)x->ob_refcnt);Py_DECREF(x);}
# define Py_PRINT_REFCOUNT(x) mx_Py_PRINT_REFCOUNT((PyObject *)x,#x,__FILE__,__LINE__)
#else
# define Py_DELETE(x) Py_DECREF(x)
# define Py_PRINT_REFCOUNT(x)
#endif
#define Py_DEC_REF(x) {Py_XDECREF(x); x=0;} /* doing this once too often doesn't hurt;
same as Py_CLEAR() */
/* Unreference a Python object. This is only used in Python debug
builds and needed to keep track of all allocated references. Use in
object constructors or free list implementations. */
#ifndef _Py_DEC_REFTOTAL
# ifdef Py_REF_DEBUG
# define _Py_DEC_REFTOTAL _Py_RefTotal--
# else
# define _Py_DEC_REFTOTAL
# endif
#endif
#define mxPy_UNREF(x) _Py_DEC_REFTOTAL
/* --- Debug logging ------------------------------------------------------ */
#ifdef MAL_DEBUG
# define Py_PRINT_REPR(message, obj) \
if (Py_DebugFlag) { \
PyObject *_debug_repr = PyObject_Repr(obj); \
mxDebugPrintf(message, PyString_AsString(_debug_repr)); \
Py_XDECREF(_debug_repr); \
}
#else
# define Py_PRINT_REPR(message, obj)
#endif
/* --- Argument passing and checking -------------------------------------- */
/* No arguments expected; also use Py_MethodListEntryNoArgs() for this
kind of fct; this check is no longer needed in Python 2.3 and
later */
#if PY_VERSION_HEX >= 0x02030000
# define Py_NoArgsCheck() {if (0) goto onError;}
#else
# define Py_NoArgsCheck() {if (!PyArg_NoArgs(args)) goto onError;}
#endif
/* For functions with old style args (Py_MethodListEntrySingleArg) */
#define Py_GetArgObject(a) {a = args; if (!a) {PyErr_SetString(PyExc_TypeError,"function/method requires an argument"); goto onError;}}
#define Py_GetSingleArg(format,a1) {if (!PyArg_Parse(args,format,&a1)) goto onError;}
/* For functions with new style args: */
#define Py_GetArg(format,a1) {if (!PyArg_ParseTuple(args,format,&a1)) goto onError;}
#define Py_Get2Args(format,a1,a2) {if (!PyArg_ParseTuple(args,format,&a1,&a2)) goto onError;}
#define Py_Get3Args(format,a1,a2,a3) {if (!PyArg_ParseTuple(args,format,&a1,&a2,&a3)) goto onError;}
#define Py_Get4Args(format,a1,a2,a3,a4) {if (!PyArg_ParseTuple(args,format,&a1,&a2,&a3,&a4)) goto onError;}
#define Py_Get5Args(format,a1,a2,a3,a4,a5) {if (!PyArg_ParseTuple(args,format,&a1,&a2,&a3,&a4,&a5)) goto onError;}
#define Py_Get6Args(format,a1,a2,a3,a4,a5,a6) {if (!PyArg_ParseTuple(args,format,&a1,&a2,&a3,&a4,&a5,&a6)) goto onError;}
#define Py_Get7Args(format,a1,a2,a3,a4,a5,a6,a7) {if (!PyArg_ParseTuple(args,format,&a1,&a2,&a3,&a4,&a5,&a6,&a7)) goto onError;}
#define Py_Get8Args(format,a1,a2,a3,a4,a5,a6,a7,a8) {if (!PyArg_ParseTuple(args,format,&a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8)) goto onError;}
/* The keywords array string type */
#define Py_KEYWORDS_STRING_TYPE char
/* For functions with keywords -- the first macro parameter must be
the keywords array given as e.g.
static const char *keywords[] = {"first","second","third", 0};
with an entry for every argument (in the correct order). The
functions must be included in the method list using
Py_MethodWithKeywordsListEntry() and be declared as
Py_C_Function_WithKeywords().
*/
#define Py_KeywordGetArg(keywords,format,a1) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1)) goto onError;}
#define Py_KeywordGet2Args(keywords,format,a1,a2) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2)) goto onError;}
#define Py_KeywordGet3Args(keywords,format,a1,a2,a3) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2,&a3)) goto onError;}
#define Py_KeywordGet4Args(keywords,format,a1,a2,a3,a4) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2,&a3,&a4)) goto onError;}
#define Py_KeywordGet5Args(keywords,format,a1,a2,a3,a4,a5) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2,&a3,&a4,&a5)) goto onError;}
#define Py_KeywordGet6Args(keywords,format,a1,a2,a3,a4,a5,a6) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2,&a3,&a4,&a5,&a6)) goto onError;}
#define Py_KeywordGet7Args(keywords,format,a1,a2,a3,a4,a5,a6,a7) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2,&a3,&a4,&a5,&a6,&a7)) goto onError;}
#define Py_KeywordGet8Args(keywords,format,a1,a2,a3,a4,a5,a6,a7,a8) {if (!PyArg_ParseTupleAndKeywords(args,kws,format,keywords,&a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8)) goto onError;}
/* New style macros fof functions supporting keywords -- the C
variable names are used as template for the keyword list, i.e. they
must match the Python keyword parameter names.
Note that format strings with special parameters (e.g. "#s") are
not allowed since they would cause the keyword list to be out of
sync.
The functions must be included in the method list using
Py_MethodWithKeywordsListEntry() and be declared as
Py_C_Function_WithKeywords().
Example:
Py_C_Function_WithKeywords(
myfunction,
"myfunction(filename,dupkeys=0,filemode=0,sectorsize=512)\n\n"
"Returns a myobject"
)
{
char *filename;
int sectorsize = 512;
int dupkeys = 0;
int filemode = 0;
Py_KeywordsGet4Args("s|iii",
filename,dupkeys,filemode,sectorsize);
return (PyObject *)myobject_New(filename,
filemode,
sectorsize,
dupkeys);
onError:
return NULL;
}
*/
#define Py_KeywordsGetArg(format,a1) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1)) goto onError;}
#define Py_KeywordsGet2Args(format,a1,a2) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2)) goto onError;}
#define Py_KeywordsGet3Args(format,a1,a2,a3) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,#a3,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2,&a3)) goto onError;}
#define Py_KeywordsGet4Args(format,a1,a2,a3,a4) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,#a3,#a4,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2,&a3,&a4)) goto onError;}
#define Py_KeywordsGet5Args(format,a1,a2,a3,a4,a5) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,#a3,#a4,#a5,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2,&a3,&a4,&a5)) goto onError;}
#define Py_KeywordsGet6Args(format,a1,a2,a3,a4,a5,a6) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,#a3,#a4,#a5,#a6,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2,&a3,&a4,&a5,&a6)) goto onError;}
#define Py_KeywordsGet7Args(format,a1,a2,a3,a4,a5,a6,a7) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,#a3,#a4,#a5,#a6,#a7,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2,&a3,&a4,&a5,&a6,&a7)) goto onError;}
#define Py_KeywordsGet8Args(format,a1,a2,a3,a4,a5,a6,a7,a8) {static Py_KEYWORDS_STRING_TYPE *kwslist[] = {#a1,#a2,#a3,#a4,#a5,#a6,#a7,#a8,NULL}; if (!PyArg_ParseTupleAndKeywords(args,kws,format,kwslist,&a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8)) goto onError;}
/* --- Returning values to Python ----------------------------------------- */
/* XXX Don't always work: every time you have an 'O' in the BuildValue format
string, you need to DECREF the variable *after* the tuple has been
built !!!
*/
#define Py_ReturnNone() {Py_INCREF(Py_None);return Py_None;}
#define Py_ReturnTrue() {Py_INCREF(Py_True);return Py_True;}
#define Py_ReturnFalse() {Py_INCREF(Py_False);return Py_False;}
#define Py_ReturnArg(format,a1) return Py_BuildValue(format,a1);
#define Py_Return Py_ReturnArg
#define Py_Return2Args(format,a1,a2) return Py_BuildValue(format,a1,a2);
#define Py_Return2 Py_Return2Args
#define Py_Return3Args(format,a1,a2,a3) return Py_BuildValue(format,a1,a2,a3);
#define Py_Return3 Py_Return3Args
#define Py_Return4Args(format,a1,a2,a3) return Py_BuildValue(format,a1,a2,a3,a4);
#define Py_Return5Args(format,a1,a2,a3) return Py_BuildValue(format,a1,a2,a3,a4,a5);
#define Py_Return6Args(format,a1,a2,a3) return Py_BuildValue(format,a1,a2,a3,a4,a5,a6);
#define Py_Return7Args(format,a1,a2,a3) return Py_BuildValue(format,a1,a2,a3,a4,a5,a6,a7);
/* Build values */
#define Py_BuildNone() Py_NONE
#define Py_Build(format,x) Py_BuildValue(format,x)
#define Py_Build2(format,x,y) Py_BuildValue(format,x,y)
#define Py_Build3(format,x,y,z) Py_BuildValue(format,x,y,z)
/* --- Declaring Python builtin functions/methods ------------------------- */
/* The doc-string type changed to const char* in Python 2.5 */
#if PY_VERSION_HEX >= 0x02050000
# define Py_DOC_STRING_TYPE const char
#else
# define Py_DOC_STRING_TYPE char
#endif
/* Declare C function/method fct, having docstring docstr; may use vargargs */
#define Py_C_Function(fct,docstr) \
static Py_DOC_STRING_TYPE fct##_docstring[] = docstr;\
static PyObject *fct(PyObject *self, PyObject *args)
/* Declare C function/method fct, having keywords keywordsarray and a
docstring docstr; may use vargargs & keywords */
#define Py_C_Function_WithKeywords(fct,docstr) \
static Py_DOC_STRING_TYPE fct##_docstring[] = docstr;\
static PyObject *fct(PyObject *self, PyObject *args, PyObject *kws)
/* These declare: self -- instance pointer for methods, NULL for functions
args -- argument tuple
kws -- keywords dict (if applicable)
plus as statics:
<function name>_docstring -- the docstring as given
<function name>_keywords -- the keyword array as given
Note: use the Py_GetArg macros for functions without keywords,
and Py_KeywordGetArg macros for functions with keywords
*/
/* --- Method list entries for builtin functions/methods ------------------ */
/* Add a C function/method cname to the module dict as pyname; no
doc-string */
#define Py_MethodListEntryAny(pyname,cname) {pyname,(PyCFunction)cname,METH_VARARGS}
/* Add a C function/method cname to the module dict as pyname; the
function can use varargs */
#define Py_MethodListEntry(pyname,cname) {pyname,(PyCFunction)cname,METH_VARARGS,cname##_docstring}
/* Add a C function/method cname to the module dict as pyname; the
function takes no args; in Python 2.3 a new flag was added for
these which implements the no args check in the interpreter
itself. */
#ifdef METH_NOARGS
# define Py_MethodListEntryNoArgs(pyname,cname) {pyname,(PyCFunction)cname,METH_NOARGS,cname##_docstring}
#else
# define Py_MethodListEntryNoArgs(pyname,cname) {pyname,(PyCFunction)cname,0,cname##_docstring}
#endif
/* Add a C function/method cname to the module dict as pyname; the
function takes one argument: the object is passed in directly
(without wrapping it into a tuple first), i.e. don't use
the Py_GetArg-macros or PyArg_ParseTuple(). */
#define Py_MethodListEntrySingleArg(pyname,cname) {pyname,(PyCFunction)cname,0,cname##_docstring}
/* Add a C function/method that uses keywords to the module dict */
#define Py_MethodWithKeywordsListEntry(pyname,cname) {pyname,(PyCFunction)cname,METH_VARARGS | METH_KEYWORDS,cname##_docstring}
/* --- Sequence slicing --------------------------------------------------- */
/* Check a given slice and apply the usual rules for negative indices */
#define Py_CheckSequenceSlice(len,start,stop) { \
if (stop > len) \
stop = len; \
else { \
if (stop < 0) \
stop += len; \
if (stop < 0) \
stop = 0; \
} \
if (start < 0) { \
start += len; \
if (start < 0) \
start = 0; \
} \
if (stop < start) \
start = stop; \
}
/* --- Number macros ------------------------------------------------------ */
/* Test for PyFloat_AsDouble() compatible object */
#define PyFloat_Compatible(obj) \
(PyInstance_Check(obj) \
? PyObject_HasAttrString(obj, "__float__") \
: (obj->ob_type->tp_as_number != NULL && \
obj->ob_type->tp_as_number->nb_float != NULL))
/* --- Text macros -------------------------------------------------------- */
/* Check a given text slice and apply the usual rules for negative
indices */
#define Py_CheckBufferSlice(textlen,start,stop) \
Py_CheckSequenceSlice(textlen,start,stop)
/* Dito for string objects */
#define Py_CheckStringSlice(textobj,start,stop) \
Py_CheckSequenceSlice(PyString_GET_SIZE(textobj),start,stop)
/* For b/w compatibility */
#define Py_CheckSlice(textobj,start,stop) \
Py_CheckStringSlice(textobj,start,stop)
/* Dito for Unicode objects */
#ifdef PyUnicode_GET_SIZE
# define Py_CheckUnicodeSlice(unicode,start,stop) \
Py_CheckSequenceSlice(PyUnicode_GET_SIZE(unicode),start,stop)
#endif
/* This assumes that fixed is a constant char array; the strcmp
function is only called in case the attribute name length exceeds
10 characters and the first 10 characters match; optimizing
compilers should eliminate any unused parts of this comparison
automatically.
Note: The latest egcs compiler warns about the subscripts being out
of range for shorter fixed strings; since no code is generated for
those comparisons, these warning can safely be ignored. Still, they
are annoying. See the Py_StringsCompareEqual() macro below for a
way to work around this.
*/
#define Py_StringsCompareEqualEx(var,fixed,fixedsize) \
(var[0] == fixed[0] && \
(fixed[0] == 0 || \
(fixedsize >= 1 && (var[1] == fixed[1] && \
(fixed[1] == 0 || \
(fixedsize >= 2 && (var[2] == fixed[2] && \
(fixed[2] == 0 || \
(fixedsize >= 3 && (var[3] == fixed[3] && \
(fixed[3] == 0 || \
(fixedsize >= 4 && (var[4] == fixed[4] && \
(fixed[4] == 0 || \
(fixedsize >= 5 && (var[5] == fixed[5] && \
(fixed[5] == 0 || \
(fixedsize >= 6 && (var[6] == fixed[6] && \
(fixed[6] == 0 || \
(fixedsize >= 7 && (var[7] == fixed[7] && \
(fixed[7] == 0 || \
(fixedsize >= 8 && (var[8] == fixed[8] && \
(fixed[8] == 0 || \
(fixedsize >= 9 && (var[9] == fixed[9] && \
(fixed[9] == 0 || \
(fixedsize >= 10 && \
strcmp(&var[10],&fixed[10]) == 0 \
))))))))))))))))))))))))))))))
/* This assumes that fixed is a constant char array.
The appended string snippet is to shut up the warnings produced by
newer egcs/gcc compilers about offsets being outside bounds.
Note that some compilers do the inlining by themselves or don't
like the above trick (OpenVMS is one such platform). For these we
simply use the standard way.
*/
#ifndef __VMS
# define Py_StringsCompareEqual(var,fixed) \
Py_StringsCompareEqualEx(var,fixed"\0\0\0\0\0\0\0\0\0\0",sizeof(fixed))
#else
# define Py_StringsCompareEqual(var,fixed) (strcmp(var, fixed) == 0)
#endif
/* Fast character set member check; set must be a "static unsigned
*char set" array of exactly 32 bytes length generated with
TextTools.set() */
#define Py_CharInSet(chr,set) \
(((unsigned char)(set)[(unsigned char)(chr) >> 3] & \
(1 << ((unsigned char)(chr) & 7))) != 0)
/* --- Macros for getattr ------------------------------------------------- */
/* Compares var to name and returns 1 iff they match.
This assumes that name is a constant char array. */
#define Py_WantAttr(var,name) Py_StringsCompareEqual(var,name)
/* --- Module init helpers ------------------------------------------------ */
/* Helper for startup type object initialization */
#define PyType_Init(x) \
{ \
x.ob_type = &PyType_Type; \
Py_Assert(x.tp_basicsize >= (int)sizeof(PyObject), \
PyExc_SystemError, \
"Internal error: tp_basicsize of "#x" too small");\
if (PyType_Ready(&x) < 0) \
goto onError; \
}
/* Error reporting for module init functions */
#define Py_ReportModuleInitError(modname) { \
PyObject *exc_type, *exc_value, *exc_tb; \
PyObject *str_type, *str_value; \
\
/* Fetch error objects and convert them to strings */ \
PyErr_Fetch(&exc_type, &exc_value, &exc_tb); \
if (exc_type && exc_value) { \
str_type = PyObject_Str(exc_type); \
str_value = PyObject_Str(exc_value); \
} \
else { \
str_type = NULL; \
str_value = NULL; \
} \
/* Try to format a more informative error message using the \
original error */ \
if (str_type && str_value && \
PyString_Check(str_type) && PyString_Check(str_value)) \
PyErr_Format( \
PyExc_ImportError, \
"initialization of module "modname" failed " \
"(%s:%s)", \
PyString_AS_STRING(str_type), \
PyString_AS_STRING(str_value)); \
else \
PyErr_SetString( \
PyExc_ImportError, \
"initialization of module "modname" failed"); \
Py_XDECREF(str_type); \
Py_XDECREF(str_value); \
Py_XDECREF(exc_type); \
Py_XDECREF(exc_value); \
Py_XDECREF(exc_tb); \
}
/* --- SWIG addons -------------------------------------------------------- */
/* Throw this error after having set the correct Python exception
using e.g. PyErr_SetString(); */
#define mxSWIGError "mxSWIGError"
/* EOF */
#endif
|