| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Miscellaneous utilities (not Catacomb-specific) |
| 4 | * |
| 5 | * (c) 2005 Straylight/Edgeware |
| 6 | */ |
| 7 | |
| 8 | /*----- Licensing notice --------------------------------------------------* |
| 9 | * |
| 10 | * This file is part of the Python interface to Catacomb. |
| 11 | * |
| 12 | * Catacomb/Python is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2 of the License, or |
| 15 | * (at your option) any later version. |
| 16 | * |
| 17 | * Catacomb/Python is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with Catacomb/Python; if not, write to the Free Software Foundation, |
| 24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 25 | */ |
| 26 | |
| 27 | /*----- Header files ------------------------------------------------------*/ |
| 28 | |
| 29 | #include "catacomb-python.h" |
| 30 | |
| 31 | /* #undef HAVE_LONG_LONG */ |
| 32 | |
| 33 | /*----- External values ---------------------------------------------------*/ |
| 34 | |
| 35 | PyObject *modname = 0; |
| 36 | PyObject *home_module = 0; |
| 37 | |
| 38 | /*----- Conversions -------------------------------------------------------*/ |
| 39 | |
| 40 | PyObject *getulong(unsigned long w) |
| 41 | { |
| 42 | if (w <= LONG_MAX) |
| 43 | return (PyInt_FromLong(w)); |
| 44 | else |
| 45 | return (PyLong_FromUnsignedLong(w)); |
| 46 | } |
| 47 | |
| 48 | #ifndef HAVE_LONG_LONG |
| 49 | static PyObject *i32 = 0; |
| 50 | static int init_i32(void) |
| 51 | { if (!i32 && (i32 = PyInt_FromLong(32)) == 0) return (-1); return (0); } |
| 52 | #endif |
| 53 | |
| 54 | PyObject *getk64(kludge64 u) |
| 55 | { |
| 56 | #ifdef HAVE_LONG_LONG |
| 57 | return (PyLong_FromUnsignedLongLong(GET64(unsigned PY_LONG_LONG, u))); |
| 58 | #else |
| 59 | PyObject *i = 0, *j = 0, *t; |
| 60 | PyObject *rc = 0; |
| 61 | |
| 62 | if (init_i32()) goto end; |
| 63 | if ((i = PyLong_FromUnsignedLong(HI64(u))) == 0) goto end; |
| 64 | if ((t = PyNumber_InPlaceLshift(i, i32)) == 0) goto end; |
| 65 | Py_DECREF(i); i = t; |
| 66 | if ((j = PyLong_FromUnsignedLong(LO64(u))) == 0) goto end; |
| 67 | if ((t = PyNumber_InPlaceOr(i, j)) == 0) goto end; |
| 68 | Py_DECREF(i); i = t; |
| 69 | if ((rc = PyNumber_Int(i)) == 0) goto end; |
| 70 | end: |
| 71 | Py_XDECREF(i); |
| 72 | Py_XDECREF(j); |
| 73 | return (rc); |
| 74 | #endif |
| 75 | } |
| 76 | |
| 77 | PyObject *getbool(int b) |
| 78 | { |
| 79 | if (b) RETURN_TRUE; |
| 80 | else RETURN_FALSE; |
| 81 | } |
| 82 | |
| 83 | PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 84 | { |
| 85 | PyErr_SetString(PyExc_TypeError, "can't instantiate this class"); |
| 86 | return (0); |
| 87 | } |
| 88 | |
| 89 | int convulong(PyObject *o, void *pp) |
| 90 | { |
| 91 | long i; |
| 92 | unsigned long *p = pp; |
| 93 | PyObject *t; |
| 94 | |
| 95 | if (!o) VALERR("can't delete"); |
| 96 | if (PyInt_Check(o)) { |
| 97 | i = PyInt_AS_LONG(o); |
| 98 | if (i < 0) VALERR("must be nonnegative"); |
| 99 | *p = i; |
| 100 | } else { |
| 101 | if ((t = PyNumber_Long(o)) == 0) goto end; |
| 102 | *p = PyLong_AsUnsignedLong(t); |
| 103 | Py_DECREF(t); |
| 104 | if (PyErr_Occurred()) goto end; |
| 105 | } |
| 106 | return (1); |
| 107 | end: |
| 108 | return (0); |
| 109 | } |
| 110 | |
| 111 | #ifdef HAVE_UINT64 |
| 112 | # define CONVu64(n) do { \ |
| 113 | kludge64 k; \ |
| 114 | uint64 t; \ |
| 115 | if (!convk64(o, &k)) goto end; \ |
| 116 | t = GET64(uint64, k); \ |
| 117 | if (t > MASK##n) VALERR("out of range"); \ |
| 118 | *p = t; \ |
| 119 | } while (0) |
| 120 | #else |
| 121 | # define CONVu64(n) assert(!"shouldn't be possible") |
| 122 | #endif |
| 123 | |
| 124 | #define CONVU_(n) \ |
| 125 | int convu##n(PyObject *o, void *pp) \ |
| 126 | { \ |
| 127 | unsigned long u; \ |
| 128 | uint##n *p = pp; \ |
| 129 | \ |
| 130 | if (MASK##n > ULONG_MAX) \ |
| 131 | CONVu64(n); \ |
| 132 | else { \ |
| 133 | if (!convulong(o, &u)) goto end; \ |
| 134 | if (u > MASK##n) VALERR("out of range"); \ |
| 135 | *p = u; \ |
| 136 | } \ |
| 137 | return (1); \ |
| 138 | end: \ |
| 139 | return (0); \ |
| 140 | } |
| 141 | DOUINTSZ(CONVU_) |
| 142 | |
| 143 | int convuint(PyObject *o, void *pp) |
| 144 | { |
| 145 | unsigned long u; |
| 146 | unsigned *p = pp; |
| 147 | |
| 148 | if (!convulong(o, &u)) goto end; |
| 149 | if (u > UINT_MAX) VALERR("out of range"); |
| 150 | *p = u; |
| 151 | return (1); |
| 152 | end: |
| 153 | return (0); |
| 154 | } |
| 155 | |
| 156 | int convk64(PyObject *o, void *pp) |
| 157 | { |
| 158 | PyObject *i = 0; |
| 159 | int rc = 0; |
| 160 | #if HAVE_LONG_LONG |
| 161 | unsigned PY_LONG_LONG t; |
| 162 | #else |
| 163 | PyObject *t; |
| 164 | uint32 lo, hi; |
| 165 | #endif |
| 166 | |
| 167 | if (!o) VALERR("can't delete"); |
| 168 | #if HAVE_LONG_LONG |
| 169 | if ((i = PyNumber_Long(o)) == 0) goto end; |
| 170 | t = PyLong_AsUnsignedLongLong(i); |
| 171 | if (t == (unsigned PY_LONG_LONG)-1 && PyErr_Occurred()) goto end; |
| 172 | ASSIGN64(*(kludge64 *)pp, t); |
| 173 | #else |
| 174 | if (init_i32()) goto end; |
| 175 | if ((i = PyNumber_Int(o)) == 0) goto end; |
| 176 | lo = PyInt_AsUnsignedLongMask(i); |
| 177 | if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end; |
| 178 | Py_DECREF(i); i = t; |
| 179 | hi = PyInt_AsUnsignedLongMask(i); |
| 180 | if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end; |
| 181 | Py_DECREF(i); i = t; |
| 182 | if (PyObject_IsTrue(i)) VALERR("out of range"); |
| 183 | SET64(*(kludge64 *)pp, hi, lo); |
| 184 | #endif |
| 185 | rc = 1; |
| 186 | |
| 187 | end: |
| 188 | Py_XDECREF(i); |
| 189 | return (rc); |
| 190 | } |
| 191 | |
| 192 | int convmpw(PyObject *o, void *pp) |
| 193 | { |
| 194 | unsigned long u; |
| 195 | unsigned *p = pp; |
| 196 | |
| 197 | if (!convulong(o, &u)) goto end; |
| 198 | if (u > MPW_MAX) VALERR("out of range"); |
| 199 | *p = u; |
| 200 | return (1); |
| 201 | end: |
| 202 | return (0); |
| 203 | } |
| 204 | |
| 205 | int convszt(PyObject *o, void *pp) |
| 206 | { |
| 207 | unsigned long u; |
| 208 | size_t *p = pp; |
| 209 | |
| 210 | if (!convulong(o, &u)) goto end; |
| 211 | if (u > ~(size_t)0) VALERR("out of range"); |
| 212 | *p = u; |
| 213 | return (1); |
| 214 | end: |
| 215 | return (0); |
| 216 | } |
| 217 | |
| 218 | int convbool(PyObject *o, void *pp) |
| 219 | { |
| 220 | if (!o) VALERR("can't delete"); |
| 221 | *(int *)pp = PyObject_IsTrue(o); |
| 222 | return (1); |
| 223 | end: |
| 224 | return (0); |
| 225 | } |
| 226 | |
| 227 | /*----- Type messing ------------------------------------------------------*/ |
| 228 | |
| 229 | static const PyTypeObject emptytype = { 0 }; |
| 230 | |
| 231 | void *newtype(PyTypeObject *metaty, |
| 232 | const PyTypeObject *skel, |
| 233 | const char *name) |
| 234 | { |
| 235 | PyHeapTypeObject *ty = |
| 236 | (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0)); |
| 237 | if (!skel) skel = &emptytype; |
| 238 | memcpy(ty, skel, sizeof(*skel)); |
| 239 | if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base); |
| 240 | #define COPY(blah) do { \ |
| 241 | if (ty->ht_type.tp_as_##blah) { \ |
| 242 | memcpy(&ty->as_##blah, \ |
| 243 | ty->ht_type.tp_as_##blah, \ |
| 244 | sizeof(ty->as_##blah)); \ |
| 245 | ty->ht_type.tp_as_##blah = &ty->as_##blah; \ |
| 246 | } \ |
| 247 | } while (0) |
| 248 | COPY(number); |
| 249 | COPY(sequence); |
| 250 | COPY(mapping); |
| 251 | COPY(buffer); |
| 252 | #undef COPY |
| 253 | if (name) |
| 254 | ty->ht_name = PyString_FromString(name); |
| 255 | else if (ty->ht_type.tp_name) |
| 256 | ty->ht_name = PyString_FromString(ty->ht_type.tp_name); |
| 257 | if (ty->ht_name) |
| 258 | ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name); |
| 259 | (void)PyObject_INIT(&ty->ht_type, metaty); |
| 260 | Py_INCREF(metaty); |
| 261 | return (ty); |
| 262 | } |
| 263 | |
| 264 | void typeready(PyTypeObject *ty) |
| 265 | { |
| 266 | PyType_Ready(ty); |
| 267 | PyDict_SetItemString(ty->tp_dict, "__module__", modname); |
| 268 | } |
| 269 | |
| 270 | PyTypeObject *inittype(PyTypeObject *tyskel, PyTypeObject *meta) |
| 271 | { |
| 272 | PyTypeObject *ty = newtype(meta, tyskel, 0); |
| 273 | ty->tp_flags |= Py_TPFLAGS_HEAPTYPE; |
| 274 | typeready(ty); |
| 275 | return (ty); |
| 276 | } |
| 277 | |
| 278 | /*----- Constants ---------------------------------------------------------*/ |
| 279 | |
| 280 | void setconstants(PyObject *mod, const struct nameval *c) |
| 281 | { |
| 282 | PyObject *x; |
| 283 | unsigned long u; |
| 284 | |
| 285 | while (c->name) { |
| 286 | u = c->value; |
| 287 | if (u <= LONG_MAX) x = PyInt_FromLong(u); |
| 288 | else if (c->f&CF_SIGNED) x = PyInt_FromLong(-1 - (long)(ULONG_MAX - u)); |
| 289 | else x = PyLong_FromUnsignedLong(u); |
| 290 | PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); c++; |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | /*----- Building method tables --------------------------------------------*/ |
| 295 | |
| 296 | static PyMethodDef *global_methods; |
| 297 | static size_t nmethods, methodsz; |
| 298 | |
| 299 | void addmethods(const PyMethodDef *m) |
| 300 | { |
| 301 | size_t n, want, newsz; |
| 302 | |
| 303 | for (n = 0; m[n].ml_name; n++); |
| 304 | want = nmethods + n + 1; |
| 305 | if (want > methodsz) { |
| 306 | newsz = methodsz ? 2*methodsz : 16; |
| 307 | while (want > newsz) newsz *= 2; |
| 308 | if (!global_methods) |
| 309 | global_methods = PyObject_Malloc(newsz*sizeof(PyMethodDef)); |
| 310 | else |
| 311 | global_methods = PyObject_Realloc(global_methods, |
| 312 | newsz*sizeof(PyMethodDef)); |
| 313 | assert(global_methods); |
| 314 | methodsz = newsz; |
| 315 | } |
| 316 | memcpy(global_methods + nmethods, m, n*sizeof(PyMethodDef)); |
| 317 | nmethods += n; |
| 318 | global_methods[nmethods].ml_name = 0; |
| 319 | } |
| 320 | |
| 321 | PyMethodDef *donemethods(void) { return (global_methods); } |
| 322 | |
| 323 | /*----- Exceptions --------------------------------------------------------*/ |
| 324 | |
| 325 | PyObject *mkexc(PyObject *mod, PyObject *base, |
| 326 | const char *name, PyMethodDef *mm) |
| 327 | { |
| 328 | PyObject *nameobj = 0; |
| 329 | PyObject *dict = 0; |
| 330 | PyObject *exc = 0; |
| 331 | PyObject *func = 0; |
| 332 | PyObject *meth = 0; |
| 333 | |
| 334 | if ((dict = PyDict_New()) == 0) goto fail; |
| 335 | |
| 336 | if (mm) { |
| 337 | while (mm->ml_name) { |
| 338 | if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 || |
| 339 | (meth = PyMethod_New(func, 0, exc)) == 0 || |
| 340 | PyDict_SetItemString(dict, mm->ml_name, meth)) |
| 341 | goto fail; |
| 342 | Py_DECREF(func); func = 0; |
| 343 | Py_DECREF(meth); meth = 0; |
| 344 | mm++; |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | if ((nameobj = PyString_FromFormat("%s.%s", |
| 349 | PyModule_GetName(mod), |
| 350 | name)) == 0 || |
| 351 | (exc = PyErr_NewException(PyString_AS_STRING(nameobj), |
| 352 | base, dict)) == 0) |
| 353 | goto fail; |
| 354 | |
| 355 | done: |
| 356 | Py_XDECREF(nameobj); |
| 357 | Py_XDECREF(dict); |
| 358 | return (exc); |
| 359 | |
| 360 | fail: |
| 361 | Py_XDECREF(exc); |
| 362 | Py_XDECREF(func); |
| 363 | Py_XDECREF(meth); |
| 364 | exc = 0; |
| 365 | goto done; |
| 366 | } |
| 367 | |
| 368 | void report_lost_exception_v(struct excinfo *exc, |
| 369 | const char *why, va_list ap) |
| 370 | { |
| 371 | PyObject *hookfn = 0; |
| 372 | PyObject *whyobj = 0; |
| 373 | PyObject *obj = 0; |
| 374 | |
| 375 | /* Make sure we start out without a pending exception, or this will get |
| 376 | * really confusing. |
| 377 | */ |
| 378 | assert(!PyErr_Occurred()); |
| 379 | |
| 380 | /* Format the explanation. */ |
| 381 | if (why) whyobj = PyString_FromFormatV(why, ap); |
| 382 | else { whyobj = Py_None; Py_INCREF(whyobj); } |
| 383 | |
| 384 | /* Find our home module's `lostexchook' function. This won't work if |
| 385 | * there's no module, or the function isn't defined, or it's `None'. |
| 386 | */ |
| 387 | if (!home_module) goto sys; |
| 388 | hookfn = PyObject_GetAttrString(home_module, "lostexchook"); |
| 389 | if (hookfn == Py_None) goto sys; |
| 390 | else if (hookfn) ; |
| 391 | else if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto ouch; |
| 392 | else { PyErr_Clear(); goto sys; } |
| 393 | |
| 394 | /* Call the hook function. */ |
| 395 | obj = PyObject_CallFunction(hookfn, "(OOOO)", |
| 396 | whyobj, exc->ty, exc->val, exc->tb); |
| 397 | if (!obj) goto ouch; |
| 398 | goto end; |
| 399 | |
| 400 | /* Something went wrong reporting the problem. */ |
| 401 | ouch: |
| 402 | PySys_WriteStderr("\n!!! FAILURE REPORTING LOST EXCEPTION\n"); |
| 403 | PyErr_Print(); |
| 404 | /* drop through... */ |
| 405 | |
| 406 | /* There was no hook, so try to do something sensible using |
| 407 | * `sys.excepthook'. |
| 408 | */ |
| 409 | sys: |
| 410 | PySys_WriteStderr("\n!!! LOST EXCEPTION: %s\n", |
| 411 | PyString_AS_STRING(whyobj)); |
| 412 | RESTORE_EXCINFO(exc); |
| 413 | PyErr_Print(); |
| 414 | /* drop through... */ |
| 415 | |
| 416 | /* Clean up afterwards. */ |
| 417 | end: |
| 418 | Py_XDECREF(hookfn); |
| 419 | Py_XDECREF(whyobj); |
| 420 | Py_XDECREF(obj); |
| 421 | } |
| 422 | |
| 423 | void report_lost_exception(struct excinfo *exc, const char *why, ...) |
| 424 | { |
| 425 | va_list ap; |
| 426 | |
| 427 | va_start(ap, why); |
| 428 | report_lost_exception_v(exc, why, ap); |
| 429 | va_end(ap); |
| 430 | } |
| 431 | |
| 432 | void stash_exception(struct excinfo *exc, const char *why, ...) |
| 433 | { |
| 434 | va_list ap; |
| 435 | struct excinfo stash; |
| 436 | |
| 437 | if (!exc->ty) |
| 438 | STASH_EXCINFO(exc); |
| 439 | else { |
| 440 | va_start(ap, why); |
| 441 | STASH_EXCINFO(&stash); |
| 442 | report_lost_exception_v(&stash, why, ap); |
| 443 | va_end(ap); |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | void restore_exception(struct excinfo *exc, const char *why, ...) |
| 448 | { |
| 449 | va_list ap; |
| 450 | struct excinfo stash; |
| 451 | |
| 452 | if (!PyErr_Occurred()) |
| 453 | RESTORE_EXCINFO(exc); |
| 454 | else { |
| 455 | va_start(ap, why); |
| 456 | STASH_EXCINFO(&stash); |
| 457 | report_lost_exception_v(exc, why, ap); |
| 458 | RESTORE_EXCINFO(&stash); |
| 459 | va_end(ap); |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | /*----- Generic dictionary methods ----------------------------------------*/ |
| 464 | |
| 465 | static PyTypeObject *itemiter_pytype, *valiter_pytype; |
| 466 | |
| 467 | typedef struct iter_pyobj { |
| 468 | PyObject_HEAD |
| 469 | PyObject *map; |
| 470 | PyObject *i; |
| 471 | } iter_pyobj; |
| 472 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) |
| 473 | #define ITER_I(o) (((iter_pyobj *)(o))->i) |
| 474 | |
| 475 | static void iter_pydealloc(PyObject *me) |
| 476 | { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); } |
| 477 | |
| 478 | static PyObject *itemiter_pynext(PyObject *me) |
| 479 | { |
| 480 | PyObject *k = 0, *v = 0, *rc = 0; |
| 481 | |
| 482 | if ((k = PyIter_Next(ITER_I(me))) != 0 && |
| 483 | (v = PyObject_GetItem(ITER_MAP(me), k)) != 0) |
| 484 | rc = Py_BuildValue("(OO)", k, v); |
| 485 | Py_XDECREF(k); Py_XDECREF(v); |
| 486 | return (rc); |
| 487 | } |
| 488 | |
| 489 | static PyTypeObject itemiter_pytype_skel = { |
| 490 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 491 | "ItemIter", /* @tp_name@ */ |
| 492 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 493 | 0, /* @tp_itemsize@ */ |
| 494 | |
| 495 | iter_pydealloc, /* @tp_dealloc@ */ |
| 496 | 0, /* @tp_print@ */ |
| 497 | 0, /* @tp_getattr@ */ |
| 498 | 0, /* @tp_setattr@ */ |
| 499 | 0, /* @tp_compare@ */ |
| 500 | 0, /* @tp_repr@ */ |
| 501 | 0, /* @tp_as_number@ */ |
| 502 | 0, /* @tp_as_sequence@ */ |
| 503 | 0, /* @tp_as_mapping@ */ |
| 504 | 0, /* @tp_hash@ */ |
| 505 | 0, /* @tp_call@ */ |
| 506 | 0, /* @tp_str@ */ |
| 507 | 0, /* @tp_getattro@ */ |
| 508 | 0, /* @tp_setattro@ */ |
| 509 | 0, /* @tp_as_buffer@ */ |
| 510 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 511 | Py_TPFLAGS_BASETYPE, |
| 512 | |
| 513 | /* @tp_doc@ */ |
| 514 | "Iterates over the items of a mapping.", |
| 515 | |
| 516 | 0, /* @tp_traverse@ */ |
| 517 | 0, /* @tp_clear@ */ |
| 518 | 0, /* @tp_richcompare@ */ |
| 519 | 0, /* @tp_weaklistoffset@ */ |
| 520 | PyObject_SelfIter, /* @tp_iter@ */ |
| 521 | itemiter_pynext, /* @tp_iternext@ */ |
| 522 | 0, /* @tp_methods@ */ |
| 523 | 0, /* @tp_members@ */ |
| 524 | 0, /* @tp_getset@ */ |
| 525 | 0, /* @tp_base@ */ |
| 526 | 0, /* @tp_dict@ */ |
| 527 | 0, /* @tp_descr_get@ */ |
| 528 | 0, /* @tp_descr_set@ */ |
| 529 | 0, /* @tp_dictoffset@ */ |
| 530 | 0, /* @tp_init@ */ |
| 531 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 532 | abstract_pynew, /* @tp_new@ */ |
| 533 | 0, /* @tp_free@ */ |
| 534 | 0 /* @tp_is_gc@ */ |
| 535 | }; |
| 536 | |
| 537 | static PyObject *valiter_pynext(PyObject *me) |
| 538 | { |
| 539 | PyObject *k = 0, *rc = 0; |
| 540 | |
| 541 | if ((k = PyIter_Next(ITER_I(me))) != 0) |
| 542 | rc = PyObject_GetItem(ITER_MAP(me), k); |
| 543 | Py_XDECREF(k); |
| 544 | return (rc); |
| 545 | } |
| 546 | |
| 547 | static PyTypeObject valiter_pytype_skel = { |
| 548 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 549 | "ValueIter", /* @tp_name@ */ |
| 550 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 551 | 0, /* @tp_itemsize@ */ |
| 552 | |
| 553 | iter_pydealloc, /* @tp_dealloc@ */ |
| 554 | 0, /* @tp_print@ */ |
| 555 | 0, /* @tp_getattr@ */ |
| 556 | 0, /* @tp_setattr@ */ |
| 557 | 0, /* @tp_compare@ */ |
| 558 | 0, /* @tp_repr@ */ |
| 559 | 0, /* @tp_as_number@ */ |
| 560 | 0, /* @tp_as_sequence@ */ |
| 561 | 0, /* @tp_as_mapping@ */ |
| 562 | 0, /* @tp_hash@ */ |
| 563 | 0, /* @tp_call@ */ |
| 564 | 0, /* @tp_str@ */ |
| 565 | 0, /* @tp_getattro@ */ |
| 566 | 0, /* @tp_setattro@ */ |
| 567 | 0, /* @tp_as_buffer@ */ |
| 568 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 569 | Py_TPFLAGS_BASETYPE, |
| 570 | |
| 571 | /* @tp_doc@ */ |
| 572 | "Iterates over the values of a mapping.", |
| 573 | |
| 574 | 0, /* @tp_traverse@ */ |
| 575 | 0, /* @tp_clear@ */ |
| 576 | 0, /* @tp_richcompare@ */ |
| 577 | 0, /* @tp_weaklistoffset@ */ |
| 578 | PyObject_SelfIter, /* @tp_iter@ */ |
| 579 | valiter_pynext, /* @tp_iternext@ */ |
| 580 | 0, /* @tp_methods@ */ |
| 581 | 0, /* @tp_members@ */ |
| 582 | 0, /* @tp_getset@ */ |
| 583 | 0, /* @tp_base@ */ |
| 584 | 0, /* @tp_dict@ */ |
| 585 | 0, /* @tp_descr_get@ */ |
| 586 | 0, /* @tp_descr_set@ */ |
| 587 | 0, /* @tp_dictoffset@ */ |
| 588 | 0, /* @tp_init@ */ |
| 589 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 590 | abstract_pynew, /* @tp_new@ */ |
| 591 | 0, /* @tp_free@ */ |
| 592 | 0 /* @tp_is_gc@ */ |
| 593 | }; |
| 594 | |
| 595 | PySequenceMethods gmap_pysequence = { |
| 596 | 0, /* @sq_length@ */ |
| 597 | 0, /* @sq_concat@ */ |
| 598 | 0, /* @sq_repeat@ */ |
| 599 | 0, /* @sq_item@ */ |
| 600 | 0, /* @sq_slice@ */ |
| 601 | 0, /* @sq_ass_item@ */ |
| 602 | 0, /* @sq_ass_slice@ */ |
| 603 | PyMapping_HasKey, /* @sq_contains@ */ |
| 604 | 0, /* @sq_inplace_concat@ */ |
| 605 | 0 /* @sq_inplace_repeat@ */ |
| 606 | }; |
| 607 | |
| 608 | Py_ssize_t gmap_pysize(PyObject *me) |
| 609 | { |
| 610 | PyObject *i = 0, *x = 0; |
| 611 | Py_ssize_t rc = -1, n = 0; |
| 612 | |
| 613 | if ((i = PyObject_GetIter(me)) == 0) goto done; |
| 614 | while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; } |
| 615 | if (PyErr_Occurred()) goto done; |
| 616 | rc = n; |
| 617 | done: |
| 618 | Py_XDECREF(i); Py_XDECREF(x); |
| 619 | return (rc); |
| 620 | } |
| 621 | |
| 622 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) |
| 623 | { |
| 624 | PyObject *k; |
| 625 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); |
| 626 | return (getbool(PyMapping_HasKey(me, k))); |
| 627 | } |
| 628 | |
| 629 | PyObject *gmapmeth_keys(PyObject *me, PyObject *arg) |
| 630 | { |
| 631 | PyObject *l = 0, *i = 0, *k, *rc = 0; |
| 632 | int err; |
| 633 | |
| 634 | if (!PyArg_ParseTuple(arg, ":keys") || |
| 635 | (l = PyList_New(0)) == 0 || |
| 636 | (i = PyObject_GetIter(me)) == 0) |
| 637 | goto done; |
| 638 | while ((k = PyIter_Next(i)) != 0) |
| 639 | { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; } |
| 640 | if (PyErr_Occurred()) goto done; |
| 641 | rc = l; l = 0; |
| 642 | done: |
| 643 | Py_XDECREF(l); Py_XDECREF(i); |
| 644 | return (rc); |
| 645 | } |
| 646 | |
| 647 | PyObject *gmapmeth_values(PyObject *me, PyObject *arg) |
| 648 | { |
| 649 | PyObject *l = 0, *i = 0, *k, *v, *rc = 0; |
| 650 | int err = 0; |
| 651 | |
| 652 | if (!PyArg_ParseTuple(arg, ":values") || |
| 653 | (l = PyList_New(0)) == 0 || |
| 654 | (i = PyObject_GetIter(me)) == 0) |
| 655 | goto done; |
| 656 | while ((k = PyIter_Next(i)) != 0) { |
| 657 | if ((v = PyObject_GetItem(me, k)) == 0 || |
| 658 | PyList_Append(l, v)) |
| 659 | err = -1; |
| 660 | Py_DECREF(k); Py_XDECREF(v); |
| 661 | if (err) goto done; |
| 662 | } |
| 663 | if (PyErr_Occurred()) goto done; |
| 664 | rc = l; l = 0; |
| 665 | done: |
| 666 | Py_XDECREF(l); Py_XDECREF(i); |
| 667 | return (rc); |
| 668 | } |
| 669 | |
| 670 | PyObject *gmapmeth_items(PyObject *me, PyObject *arg) |
| 671 | { |
| 672 | PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0; |
| 673 | int err = 0; |
| 674 | |
| 675 | if (!PyArg_ParseTuple(arg, ":items") || |
| 676 | (l = PyList_New(0)) == 0 || |
| 677 | (i = PyObject_GetIter(me)) == 0) |
| 678 | goto done; |
| 679 | while ((k = PyIter_Next(i)) != 0) { |
| 680 | z = 0; |
| 681 | if ((v = PyObject_GetItem(me, k)) == 0 || |
| 682 | (z = Py_BuildValue("(OO)", k, v)) == 0 || |
| 683 | PyList_Append(l, z)) |
| 684 | err = -1; |
| 685 | Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z); |
| 686 | if (err) goto done; |
| 687 | } |
| 688 | if (PyErr_Occurred()) goto done; |
| 689 | rc = l; l = 0; |
| 690 | done: |
| 691 | Py_XDECREF(l); Py_XDECREF(i); |
| 692 | return (rc); |
| 693 | } |
| 694 | |
| 695 | PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg) |
| 696 | { |
| 697 | if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0); |
| 698 | return (PyObject_GetIter(me)); |
| 699 | } |
| 700 | |
| 701 | PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg) |
| 702 | { |
| 703 | PyObject *i; |
| 704 | iter_pyobj *ii; |
| 705 | |
| 706 | if (!PyArg_ParseTuple(arg, ":itervalues") || |
| 707 | (i = PyObject_GetIter(me)) == 0) |
| 708 | return (0); |
| 709 | ii = PyObject_NEW(iter_pyobj, valiter_pytype); |
| 710 | ii->map = me; Py_INCREF(me); |
| 711 | ii->i = i; |
| 712 | return ((PyObject *)ii); |
| 713 | } |
| 714 | |
| 715 | PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg) |
| 716 | { |
| 717 | PyObject *i; |
| 718 | iter_pyobj *ii; |
| 719 | |
| 720 | if (!PyArg_ParseTuple(arg, ":iteritems") || |
| 721 | (i = PyObject_GetIter(me)) == 0) |
| 722 | return (0); |
| 723 | ii = PyObject_NEW(iter_pyobj, itemiter_pytype); |
| 724 | ii->map = me; Py_INCREF(me); |
| 725 | ii->i = i; |
| 726 | return ((PyObject *)ii); |
| 727 | } |
| 728 | |
| 729 | PyObject *gmapmeth_clear(PyObject *me, PyObject *arg) |
| 730 | { |
| 731 | PyObject *i = 0, *k = 0, *rc = 0; |
| 732 | |
| 733 | if (!PyArg_ParseTuple(arg, ":clear") || |
| 734 | (i = PyObject_GetIter(me)) == 0) |
| 735 | goto end; |
| 736 | while ((k = PyIter_Next(i)) != 0) { |
| 737 | PyObject_DelItem(me, k); |
| 738 | Py_DECREF(k); |
| 739 | } |
| 740 | if (PyErr_Occurred()) goto end; |
| 741 | rc = me; Py_INCREF(me); |
| 742 | end: |
| 743 | Py_XDECREF(i); |
| 744 | return (rc); |
| 745 | } |
| 746 | |
| 747 | static const char *const def_kwlist[] = { "key", "default", 0 }; |
| 748 | |
| 749 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) |
| 750 | { |
| 751 | PyObject *k, *def = Py_None, *v; |
| 752 | |
| 753 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:get", |
| 754 | (/*unconst*/ char **)def_kwlist, |
| 755 | &k, &def)) |
| 756 | return (0); |
| 757 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); |
| 758 | PyErr_Clear(); |
| 759 | RETURN_OBJ(def); |
| 760 | } |
| 761 | |
| 762 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) |
| 763 | { |
| 764 | PyObject *k, *def = Py_None, *v; |
| 765 | |
| 766 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:setdefault", |
| 767 | (/*unconst*/ char **)def_kwlist, |
| 768 | &k, &def)) |
| 769 | return (0); |
| 770 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); |
| 771 | PyErr_Clear(); |
| 772 | if (PyObject_SetItem(me, k, def)) return (0); |
| 773 | RETURN_OBJ(def); |
| 774 | } |
| 775 | |
| 776 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) |
| 777 | { |
| 778 | PyObject *k, *def = 0, *v; |
| 779 | |
| 780 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:pop", |
| 781 | (/*unconst*/ char **)def_kwlist, |
| 782 | &k, &def)) |
| 783 | return (0); |
| 784 | if ((v = PyObject_GetItem(me, k)) != 0) { |
| 785 | PyObject_DelItem(me, k); |
| 786 | return (v); |
| 787 | } else if (def) { |
| 788 | PyErr_Clear(); |
| 789 | RETURN_OBJ(def); |
| 790 | } else |
| 791 | return (0); |
| 792 | } |
| 793 | |
| 794 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg) |
| 795 | { |
| 796 | PyObject *map, *i = 0, *k, *v, *rc = 0; |
| 797 | int err = 0; |
| 798 | |
| 799 | if (!PyArg_ParseTuple(arg, "O:update", &map) || |
| 800 | (i = PyObject_GetIter(map)) == 0) |
| 801 | goto end; |
| 802 | while ((k = PyIter_Next(i)) != 0) { |
| 803 | if ((v = PyObject_GetItem(map, k)) == 0 || |
| 804 | PyObject_SetItem(me, k, v)) |
| 805 | err = -1; |
| 806 | Py_DECREF(k); Py_XDECREF(v); |
| 807 | if (err) goto end; |
| 808 | } |
| 809 | if (PyErr_Occurred()) goto end; |
| 810 | rc = me; Py_INCREF(me); |
| 811 | end: |
| 812 | Py_XDECREF(i); |
| 813 | return (rc); |
| 814 | } |
| 815 | |
| 816 | PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg) |
| 817 | { |
| 818 | PyObject *i = 0, *k = 0, *v = 0, *rc = 0; |
| 819 | |
| 820 | if (!PyArg_ParseTuple(arg, ":popitem") || |
| 821 | (i = PyObject_GetIter(me)) == 0) |
| 822 | goto end; |
| 823 | if ((k = PyIter_Next(i)) == 0) { |
| 824 | if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty"); |
| 825 | goto end; |
| 826 | } |
| 827 | if ((v = PyObject_GetItem(me, k)) == 0 || |
| 828 | PyObject_DelItem(me, k)) |
| 829 | goto end; |
| 830 | rc = Py_BuildValue("(OO)", k, v); |
| 831 | end: |
| 832 | Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v); |
| 833 | return (rc); |
| 834 | } |
| 835 | |
| 836 | PyMethodDef gmap_pymethods[] = { |
| 837 | GMAP_METHODS |
| 838 | { 0 } |
| 839 | }; |
| 840 | |
| 841 | /*----- Initialization ----------------------------------------------------*/ |
| 842 | |
| 843 | static PyObject *meth__set_home_module(PyObject *me, PyObject *arg) |
| 844 | { |
| 845 | PyObject *mod; |
| 846 | |
| 847 | if (!PyArg_ParseTuple(arg, "O!:_set_home_module", &PyModule_Type, &mod)) |
| 848 | return (0); |
| 849 | Py_XDECREF(home_module); home_module = mod; Py_INCREF(home_module); |
| 850 | RETURN_NONE; |
| 851 | } |
| 852 | |
| 853 | static const PyMethodDef methods[] = { |
| 854 | #define METHNAME(func) meth_##func |
| 855 | METH (_set_home_module, "_set_home_module(MOD)") |
| 856 | #undef METHNAME |
| 857 | { 0 } |
| 858 | }; |
| 859 | |
| 860 | void util_pyinit(void) |
| 861 | { |
| 862 | INITTYPE(itemiter, root); |
| 863 | INITTYPE(valiter, root); |
| 864 | addmethods(methods); |
| 865 | } |
| 866 | |
| 867 | void util_pyinsert(PyObject *mod) |
| 868 | { |
| 869 | INSERT("ItemIter", itemiter_pytype); |
| 870 | INSERT("ValueIter", valiter_pytype); |
| 871 | } |
| 872 | |
| 873 | /*----- That's all, folks -------------------------------------------------*/ |