| 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 | /*----- External values ---------------------------------------------------*/ |
| 32 | |
| 33 | static PyObject *modname = 0; |
| 34 | |
| 35 | /*----- Conversions -------------------------------------------------------*/ |
| 36 | |
| 37 | PyObject *getulong(unsigned long w) |
| 38 | { |
| 39 | if (w <= LONG_MAX) |
| 40 | return (PyInt_FromLong(w)); |
| 41 | else |
| 42 | return (PyLong_FromUnsignedLong(w)); |
| 43 | } |
| 44 | |
| 45 | static PyObject *i32 = 0; |
| 46 | static int init_i32(void) |
| 47 | { if (!i32 && (i32 = PyInt_FromLong(32)) == 0) return (-1); return (0); } |
| 48 | |
| 49 | PyObject *getk64(kludge64 u) |
| 50 | { |
| 51 | PyObject *i = 0, *j = 0, *t; |
| 52 | PyObject *rc = 0; |
| 53 | |
| 54 | if (init_i32()) goto end; |
| 55 | if ((i = PyLong_FromUnsignedLong(HI64(u))) == 0) goto end; |
| 56 | if ((t = PyNumber_InPlaceLshift(i, i32)) == 0) goto end; |
| 57 | Py_DECREF(i); i = t; |
| 58 | if ((j = PyLong_FromUnsignedLong(LO64(u))) == 0) goto end; |
| 59 | if ((t = PyNumber_InPlaceOr(i, j)) == 0) goto end; |
| 60 | Py_DECREF(i); i = t; |
| 61 | if ((rc = PyNumber_Int(i)) == 0) goto end; |
| 62 | end: |
| 63 | if (i) Py_DECREF(i); |
| 64 | if (j) Py_DECREF(j); |
| 65 | return (rc); |
| 66 | } |
| 67 | |
| 68 | PyObject *getbool(int b) |
| 69 | { |
| 70 | if (b) RETURN_TRUE; |
| 71 | else RETURN_FALSE; |
| 72 | } |
| 73 | |
| 74 | PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 75 | { |
| 76 | PyErr_SetString(PyExc_TypeError, "can't instantiate this class"); |
| 77 | return (0); |
| 78 | } |
| 79 | |
| 80 | int convulong(PyObject *o, void *pp) |
| 81 | { |
| 82 | long i; |
| 83 | unsigned long *p = pp; |
| 84 | PyObject *t; |
| 85 | |
| 86 | if (PyInt_Check(o)) { |
| 87 | i = PyInt_AS_LONG(o); |
| 88 | if (i < 0) VALERR("must be nonnegative"); |
| 89 | *p = i; |
| 90 | } else { |
| 91 | if ((t = PyNumber_Long(o)) == 0) goto end; |
| 92 | *p = PyLong_AsUnsignedLong(t); |
| 93 | Py_DECREF(t); |
| 94 | if (PyErr_Occurred()) goto end; |
| 95 | } |
| 96 | return (1); |
| 97 | end: |
| 98 | return (0); |
| 99 | } |
| 100 | |
| 101 | #define CONVU_(n) \ |
| 102 | int convu##n(PyObject *o, void *pp) \ |
| 103 | { \ |
| 104 | unsigned long u; \ |
| 105 | uint##n *p = pp; \ |
| 106 | \ |
| 107 | if (!convulong(o, &u)) goto end; \ |
| 108 | if (u > MASK##n) VALERR("out of range"); \ |
| 109 | *p = u; \ |
| 110 | return (1); \ |
| 111 | end: \ |
| 112 | return (0); \ |
| 113 | } |
| 114 | DOUINTSZ(CONVU_) |
| 115 | |
| 116 | int convuint(PyObject *o, void *pp) |
| 117 | { |
| 118 | unsigned long u; |
| 119 | unsigned *p = pp; |
| 120 | |
| 121 | if (!convulong(o, &u)) goto end; |
| 122 | if (u > UINT_MAX) VALERR("out of range"); |
| 123 | *p = u; |
| 124 | return (1); |
| 125 | end: |
| 126 | return (0); |
| 127 | } |
| 128 | |
| 129 | int convk64(PyObject *o, void *pp) |
| 130 | { |
| 131 | PyObject *i = 0, *t; |
| 132 | int rc = 0; |
| 133 | uint32 lo, hi; |
| 134 | |
| 135 | if (init_i32()) goto end; |
| 136 | if ((i = PyNumber_Int(o)) == 0) goto end; |
| 137 | lo = PyInt_AsUnsignedLongMask(i); |
| 138 | if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end; |
| 139 | Py_DECREF(i); i = t; |
| 140 | hi = PyInt_AsUnsignedLongMask(i); |
| 141 | if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end; |
| 142 | Py_DECREF(i); i = t; |
| 143 | if (PyObject_IsTrue(i)) VALERR("out of range"); |
| 144 | SET64(*(kludge64 *)pp, hi, lo); |
| 145 | rc = 1; |
| 146 | end: |
| 147 | if (i) Py_DECREF(i); |
| 148 | return (rc); |
| 149 | } |
| 150 | |
| 151 | int convmpw(PyObject *o, void *pp) |
| 152 | { |
| 153 | unsigned long u; |
| 154 | unsigned *p = pp; |
| 155 | |
| 156 | if (!convulong(o, &u)) goto end; |
| 157 | if (u > MPW_MAX) VALERR("out of range"); |
| 158 | *p = u; |
| 159 | return (1); |
| 160 | end: |
| 161 | return (0); |
| 162 | } |
| 163 | |
| 164 | int convszt(PyObject *o, void *pp) |
| 165 | { |
| 166 | unsigned long u; |
| 167 | size_t *p = pp; |
| 168 | |
| 169 | if (!convulong(o, &u)) goto end; |
| 170 | if (u > ~(size_t)0) VALERR("out of range"); |
| 171 | *p = u; |
| 172 | return (1); |
| 173 | end: |
| 174 | return (0); |
| 175 | } |
| 176 | |
| 177 | int convbool(PyObject *o, void *pp) |
| 178 | { |
| 179 | *(int *)pp = PyObject_IsTrue(o); |
| 180 | return (1); |
| 181 | } |
| 182 | |
| 183 | /*----- Type messing ------------------------------------------------------*/ |
| 184 | |
| 185 | static const PyTypeObject emptytype = { 0 }; |
| 186 | |
| 187 | void *newtype(PyTypeObject *metaty, |
| 188 | const PyTypeObject *skel, |
| 189 | const char *name) |
| 190 | { |
| 191 | PyHeapTypeObject *ty = |
| 192 | (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0)); |
| 193 | if (!skel) skel = &emptytype; |
| 194 | memcpy(ty, skel, sizeof(*skel)); |
| 195 | if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base); |
| 196 | #define COPY(blah) do { \ |
| 197 | if (ty->ht_type.tp_as_##blah) { \ |
| 198 | memcpy(&ty->as_##blah, \ |
| 199 | ty->ht_type.tp_as_##blah, \ |
| 200 | sizeof(ty->as_##blah)); \ |
| 201 | ty->ht_type.tp_as_##blah = &ty->as_##blah; \ |
| 202 | } \ |
| 203 | } while (0) |
| 204 | COPY(number); |
| 205 | COPY(sequence); |
| 206 | COPY(mapping); |
| 207 | COPY(buffer); |
| 208 | #undef COPY |
| 209 | if (name) |
| 210 | ty->ht_name = PyString_FromString(name); |
| 211 | else if (ty->ht_type.tp_name) |
| 212 | ty->ht_name = PyString_FromString(ty->ht_type.tp_name); |
| 213 | if (ty->ht_name) |
| 214 | ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name); |
| 215 | DISCARD(PyObject_INIT(&ty->ht_type, metaty)); |
| 216 | Py_INCREF(metaty); |
| 217 | return (ty); |
| 218 | } |
| 219 | |
| 220 | void typeready(PyTypeObject *ty) |
| 221 | { |
| 222 | PyType_Ready(ty); |
| 223 | PyDict_SetItemString(ty->tp_dict, "__module__", modname); |
| 224 | } |
| 225 | |
| 226 | PyTypeObject *inittype(PyTypeObject *tyskel, PyTypeObject *meta) |
| 227 | { |
| 228 | PyTypeObject *ty = newtype(meta, tyskel, 0); |
| 229 | ty->tp_flags |= Py_TPFLAGS_HEAPTYPE; |
| 230 | typeready(ty); |
| 231 | return (ty); |
| 232 | } |
| 233 | |
| 234 | /*----- Constants ---------------------------------------------------------*/ |
| 235 | |
| 236 | void setconstants(PyObject *mod, const struct nameval *c) |
| 237 | { |
| 238 | PyObject *x; |
| 239 | |
| 240 | while (c->name) { |
| 241 | if (c->value > LONG_MAX) |
| 242 | x = PyLong_FromUnsignedLong(c->value); |
| 243 | else |
| 244 | x = PyInt_FromLong(c->value); |
| 245 | PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); |
| 246 | c++; |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | /*----- Building method tables --------------------------------------------*/ |
| 251 | |
| 252 | DA_DECL(method_v, PyMethodDef); |
| 253 | static method_v global_pymethods = DA_INIT; |
| 254 | void addmethods(const PyMethodDef *m) |
| 255 | { |
| 256 | size_t n; |
| 257 | |
| 258 | for (n = 0; m[n].ml_name; n++); |
| 259 | DA_ENSURE(&global_pymethods, n); |
| 260 | memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods), |
| 261 | m, n * sizeof(*m)); |
| 262 | DA_EXTEND(&global_pymethods, n); |
| 263 | } |
| 264 | |
| 265 | PyMethodDef *donemethods(void) |
| 266 | { |
| 267 | static const PyMethodDef mzero = { 0 }; |
| 268 | DA_PUSH(&global_pymethods, mzero); |
| 269 | return (DA(&global_pymethods)); |
| 270 | } |
| 271 | |
| 272 | /*----- Exceptions --------------------------------------------------------*/ |
| 273 | |
| 274 | PyObject *mkexc(PyObject *mod, PyObject *base, |
| 275 | const char *name, PyMethodDef *mm) |
| 276 | { |
| 277 | PyObject *nameobj = 0; |
| 278 | PyObject *dict = 0; |
| 279 | PyObject *exc = 0; |
| 280 | PyObject *func = 0; |
| 281 | PyObject *meth = 0; |
| 282 | |
| 283 | if ((nameobj = PyString_FromFormat("%s.%s", |
| 284 | PyModule_GetName(mod), |
| 285 | name)) == 0 || |
| 286 | (dict = PyDict_New()) == 0 || |
| 287 | (exc = PyErr_NewException(PyString_AS_STRING(nameobj), |
| 288 | base, dict)) == 0) |
| 289 | goto fail; |
| 290 | |
| 291 | if (mm) { |
| 292 | while (mm->ml_name) { |
| 293 | if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 || |
| 294 | (meth = PyMethod_New(func, 0, exc)) == 0 || |
| 295 | PyDict_SetItemString(dict, mm->ml_name, meth)) |
| 296 | goto fail; |
| 297 | Py_DECREF(func); func = 0; |
| 298 | Py_DECREF(meth); meth = 0; |
| 299 | mm++; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | done: |
| 304 | Py_XDECREF(nameobj); |
| 305 | Py_XDECREF(dict); |
| 306 | return (exc); |
| 307 | |
| 308 | fail: |
| 309 | Py_XDECREF(exc); |
| 310 | Py_XDECREF(func); |
| 311 | Py_XDECREF(meth); |
| 312 | exc = 0; |
| 313 | goto done; |
| 314 | } |
| 315 | |
| 316 | /*----- Generic dictionary methods ----------------------------------------*/ |
| 317 | |
| 318 | static PyTypeObject *itemiter_pytype, *valiter_pytype; |
| 319 | |
| 320 | typedef struct iter_pyobj { |
| 321 | PyObject_HEAD |
| 322 | PyObject *map; |
| 323 | PyObject *i; |
| 324 | } iter_pyobj; |
| 325 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) |
| 326 | #define ITER_I(o) (((iter_pyobj *)(o))->i) |
| 327 | |
| 328 | static void iter_pydealloc(PyObject *me) |
| 329 | { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); } |
| 330 | |
| 331 | static PyObject *itemiter_pynext(PyObject *me) |
| 332 | { |
| 333 | PyObject *k = 0, *v = 0, *rc = 0; |
| 334 | |
| 335 | if ((k = PyIter_Next(ITER_I(me))) != 0 && |
| 336 | (v = PyObject_GetItem(ITER_MAP(me), k)) != 0) |
| 337 | rc = Py_BuildValue("(OO)", k, v); |
| 338 | Py_XDECREF(k); Py_XDECREF(v); |
| 339 | return (rc); |
| 340 | } |
| 341 | |
| 342 | static PyTypeObject itemiter_pytype_skel = { |
| 343 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 344 | "ItemIter", /* @tp_name@ */ |
| 345 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 346 | 0, /* @tp_itemsize@ */ |
| 347 | |
| 348 | iter_pydealloc, /* @tp_dealloc@ */ |
| 349 | 0, /* @tp_print@ */ |
| 350 | 0, /* @tp_getattr@ */ |
| 351 | 0, /* @tp_setattr@ */ |
| 352 | 0, /* @tp_compare@ */ |
| 353 | 0, /* @tp_repr@ */ |
| 354 | 0, /* @tp_as_number@ */ |
| 355 | 0, /* @tp_as_sequence@ */ |
| 356 | 0, /* @tp_as_mapping@ */ |
| 357 | 0, /* @tp_hash@ */ |
| 358 | 0, /* @tp_call@ */ |
| 359 | 0, /* @tp_str@ */ |
| 360 | 0, /* @tp_getattro@ */ |
| 361 | 0, /* @tp_setattro@ */ |
| 362 | 0, /* @tp_as_buffer@ */ |
| 363 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 364 | Py_TPFLAGS_BASETYPE, |
| 365 | |
| 366 | /* @tp_doc@ */ |
| 367 | "Iterates over the items of a mapping.", |
| 368 | |
| 369 | 0, /* @tp_traverse@ */ |
| 370 | 0, /* @tp_clear@ */ |
| 371 | 0, /* @tp_richcompare@ */ |
| 372 | 0, /* @tp_weaklistoffset@ */ |
| 373 | PyObject_SelfIter, /* @tp_iter@ */ |
| 374 | itemiter_pynext, /* @tp_iternext@ */ |
| 375 | 0, /* @tp_methods@ */ |
| 376 | 0, /* @tp_members@ */ |
| 377 | 0, /* @tp_getset@ */ |
| 378 | 0, /* @tp_base@ */ |
| 379 | 0, /* @tp_dict@ */ |
| 380 | 0, /* @tp_descr_get@ */ |
| 381 | 0, /* @tp_descr_set@ */ |
| 382 | 0, /* @tp_dictoffset@ */ |
| 383 | 0, /* @tp_init@ */ |
| 384 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 385 | abstract_pynew, /* @tp_new@ */ |
| 386 | 0, /* @tp_free@ */ |
| 387 | 0 /* @tp_is_gc@ */ |
| 388 | }; |
| 389 | |
| 390 | static PyObject *valiter_pynext(PyObject *me) |
| 391 | { |
| 392 | PyObject *k = 0, *rc = 0; |
| 393 | |
| 394 | if ((k = PyIter_Next(ITER_I(me))) != 0) |
| 395 | rc = PyObject_GetItem(ITER_MAP(me), k); |
| 396 | Py_XDECREF(k); |
| 397 | return (rc); |
| 398 | } |
| 399 | |
| 400 | static PyTypeObject valiter_pytype_skel = { |
| 401 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 402 | "ValueIter", /* @tp_name@ */ |
| 403 | sizeof(iter_pyobj), /* @tp_basicsize@ */ |
| 404 | 0, /* @tp_itemsize@ */ |
| 405 | |
| 406 | iter_pydealloc, /* @tp_dealloc@ */ |
| 407 | 0, /* @tp_print@ */ |
| 408 | 0, /* @tp_getattr@ */ |
| 409 | 0, /* @tp_setattr@ */ |
| 410 | 0, /* @tp_compare@ */ |
| 411 | 0, /* @tp_repr@ */ |
| 412 | 0, /* @tp_as_number@ */ |
| 413 | 0, /* @tp_as_sequence@ */ |
| 414 | 0, /* @tp_as_mapping@ */ |
| 415 | 0, /* @tp_hash@ */ |
| 416 | 0, /* @tp_call@ */ |
| 417 | 0, /* @tp_str@ */ |
| 418 | 0, /* @tp_getattro@ */ |
| 419 | 0, /* @tp_setattro@ */ |
| 420 | 0, /* @tp_as_buffer@ */ |
| 421 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 422 | Py_TPFLAGS_BASETYPE, |
| 423 | |
| 424 | /* @tp_doc@ */ |
| 425 | "Iterates over the items of a mapping.", |
| 426 | |
| 427 | 0, /* @tp_traverse@ */ |
| 428 | 0, /* @tp_clear@ */ |
| 429 | 0, /* @tp_richcompare@ */ |
| 430 | 0, /* @tp_weaklistoffset@ */ |
| 431 | PyObject_SelfIter, /* @tp_iter@ */ |
| 432 | valiter_pynext, /* @tp_iternext@ */ |
| 433 | 0, /* @tp_methods@ */ |
| 434 | 0, /* @tp_members@ */ |
| 435 | 0, /* @tp_getset@ */ |
| 436 | 0, /* @tp_base@ */ |
| 437 | 0, /* @tp_dict@ */ |
| 438 | 0, /* @tp_descr_get@ */ |
| 439 | 0, /* @tp_descr_set@ */ |
| 440 | 0, /* @tp_dictoffset@ */ |
| 441 | 0, /* @tp_init@ */ |
| 442 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 443 | abstract_pynew, /* @tp_new@ */ |
| 444 | 0, /* @tp_free@ */ |
| 445 | 0 /* @tp_is_gc@ */ |
| 446 | }; |
| 447 | |
| 448 | PySequenceMethods gmap_pysequence = { |
| 449 | 0, /* @sq_length@ */ |
| 450 | 0, /* @sq_concat@ */ |
| 451 | 0, /* @sq_repeat@ */ |
| 452 | 0, /* @sq_item@ */ |
| 453 | 0, /* @sq_slice@ */ |
| 454 | 0, /* @sq_ass_item@ */ |
| 455 | 0, /* @sq_ass_slice@ */ |
| 456 | PyMapping_HasKey, /* @sq_contains@ */ |
| 457 | 0, /* @sq_inplace_concat@ */ |
| 458 | 0 /* @sq_inplace_repeat@ */ |
| 459 | }; |
| 460 | |
| 461 | Py_ssize_t gmap_pysize(PyObject *me) |
| 462 | { |
| 463 | PyObject *i = 0, *x = 0; |
| 464 | int rc = -1; |
| 465 | int n = 0; |
| 466 | |
| 467 | if ((i = PyObject_GetIter(me)) == 0) goto done; |
| 468 | while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; } |
| 469 | if (PyErr_Occurred()) goto done; |
| 470 | rc = n; |
| 471 | done: |
| 472 | Py_XDECREF(i); Py_XDECREF(x); |
| 473 | return (rc); |
| 474 | } |
| 475 | |
| 476 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) |
| 477 | { |
| 478 | PyObject *k; |
| 479 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); |
| 480 | return (getbool(PyMapping_HasKey(me, k))); |
| 481 | } |
| 482 | |
| 483 | PyObject *gmapmeth_keys(PyObject *me, PyObject *arg) |
| 484 | { |
| 485 | PyObject *l = 0, *i = 0, *k, *rc = 0; |
| 486 | int err; |
| 487 | |
| 488 | if (!PyArg_ParseTuple(arg, ":keys") || |
| 489 | (l = PyList_New(0)) == 0 || |
| 490 | (i = PyObject_GetIter(me)) == 0) |
| 491 | goto done; |
| 492 | while ((k = PyIter_Next(i)) != 0) |
| 493 | { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; } |
| 494 | if (PyErr_Occurred()) goto done; |
| 495 | rc = l; l = 0; |
| 496 | done: |
| 497 | Py_XDECREF(l); Py_XDECREF(i); |
| 498 | return (rc); |
| 499 | } |
| 500 | |
| 501 | PyObject *gmapmeth_values(PyObject *me, PyObject *arg) |
| 502 | { |
| 503 | PyObject *l = 0, *i = 0, *k, *v, *rc = 0; |
| 504 | int err = 0; |
| 505 | |
| 506 | if (!PyArg_ParseTuple(arg, ":values") || |
| 507 | (l = PyList_New(0)) == 0 || |
| 508 | (i = PyObject_GetIter(me)) == 0) |
| 509 | goto done; |
| 510 | while ((k = PyIter_Next(i)) != 0) { |
| 511 | if ((v = PyObject_GetItem(me, k)) == 0 || |
| 512 | PyList_Append(l, v)) |
| 513 | err = -1; |
| 514 | Py_DECREF(k); Py_XDECREF(v); |
| 515 | if (err) goto done; |
| 516 | } |
| 517 | if (PyErr_Occurred()) goto done; |
| 518 | rc = l; l = 0; |
| 519 | done: |
| 520 | Py_XDECREF(l); Py_XDECREF(i); |
| 521 | return (rc); |
| 522 | } |
| 523 | |
| 524 | PyObject *gmapmeth_items(PyObject *me, PyObject *arg) |
| 525 | { |
| 526 | PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0; |
| 527 | int err = 0; |
| 528 | |
| 529 | if (!PyArg_ParseTuple(arg, ":items") || |
| 530 | (l = PyList_New(0)) == 0 || |
| 531 | (i = PyObject_GetIter(me)) == 0) |
| 532 | goto done; |
| 533 | while ((k = PyIter_Next(i)) != 0) { |
| 534 | z = 0; |
| 535 | if ((v = PyObject_GetItem(me, k)) == 0 || |
| 536 | (z = Py_BuildValue("(OO)", k, v)) == 0 || |
| 537 | PyList_Append(l, z)) |
| 538 | err = -1; |
| 539 | Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z); |
| 540 | if (err) goto done; |
| 541 | } |
| 542 | if (PyErr_Occurred()) goto done; |
| 543 | rc = l; l = 0; |
| 544 | done: |
| 545 | Py_XDECREF(l); Py_XDECREF(i); |
| 546 | return (rc); |
| 547 | } |
| 548 | |
| 549 | PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg) |
| 550 | { |
| 551 | if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0); |
| 552 | return (PyObject_GetIter(me)); |
| 553 | } |
| 554 | |
| 555 | PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg) |
| 556 | { |
| 557 | PyObject *i; |
| 558 | iter_pyobj *ii; |
| 559 | |
| 560 | if (!PyArg_ParseTuple(arg, ":itervalues") || |
| 561 | (i = PyObject_GetIter(me)) == 0) |
| 562 | return (0); |
| 563 | ii = PyObject_NEW(iter_pyobj, valiter_pytype); |
| 564 | ii->map = me; Py_INCREF(me); |
| 565 | ii->i = i; |
| 566 | return ((PyObject *)ii); |
| 567 | } |
| 568 | |
| 569 | PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg) |
| 570 | { |
| 571 | PyObject *i; |
| 572 | iter_pyobj *ii; |
| 573 | |
| 574 | if (!PyArg_ParseTuple(arg, ":iteritems") || |
| 575 | (i = PyObject_GetIter(me)) == 0) |
| 576 | return (0); |
| 577 | ii = PyObject_NEW(iter_pyobj, itemiter_pytype); |
| 578 | ii->map = me; Py_INCREF(me); |
| 579 | ii->i = i; |
| 580 | return ((PyObject *)ii); |
| 581 | } |
| 582 | |
| 583 | PyObject *gmapmeth_clear(PyObject *me, PyObject *arg) |
| 584 | { |
| 585 | PyObject *i = 0, *k = 0, *rc = 0; |
| 586 | |
| 587 | if (!PyArg_ParseTuple(arg, ":clear") || |
| 588 | (i = PyObject_GetIter(me)) == 0) |
| 589 | goto end; |
| 590 | while ((k = PyIter_Next(i)) != 0) { |
| 591 | PyObject_DelItem(me, k); |
| 592 | Py_DECREF(k); |
| 593 | } |
| 594 | if (PyErr_Occurred()) goto end; |
| 595 | rc = me; Py_INCREF(me); |
| 596 | end: |
| 597 | Py_XDECREF(i); |
| 598 | return (rc); |
| 599 | } |
| 600 | |
| 601 | static char *def_kwlist[] = { "key", "default", 0 }; |
| 602 | |
| 603 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) |
| 604 | { |
| 605 | PyObject *k, *def = Py_None, *v; |
| 606 | |
| 607 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def)) |
| 608 | return (0); |
| 609 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); |
| 610 | PyErr_Clear(); |
| 611 | RETURN_OBJ(def); |
| 612 | } |
| 613 | |
| 614 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) |
| 615 | { |
| 616 | PyObject *k, *def = Py_None, *v; |
| 617 | |
| 618 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault", |
| 619 | def_kwlist, &k, &def)) |
| 620 | return (0); |
| 621 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); |
| 622 | PyErr_Clear(); |
| 623 | if (PyObject_SetItem(me, k, def)) return (0); |
| 624 | RETURN_OBJ(def); |
| 625 | } |
| 626 | |
| 627 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) |
| 628 | { |
| 629 | PyObject *k, *def = 0, *v; |
| 630 | |
| 631 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def)) |
| 632 | return (0); |
| 633 | if ((v = PyObject_GetItem(me, k)) != 0) { |
| 634 | PyObject_DelItem(me, k); |
| 635 | return (v); |
| 636 | } |
| 637 | PyErr_Clear(); |
| 638 | RETURN_OBJ(def); |
| 639 | } |
| 640 | |
| 641 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg) |
| 642 | { |
| 643 | PyObject *map, *i = 0, *k, *v, *rc = 0; |
| 644 | int err = 0; |
| 645 | |
| 646 | if (!PyArg_ParseTuple(arg, "O:update", &map) || |
| 647 | (i = PyObject_GetIter(map)) == 0) |
| 648 | goto end; |
| 649 | while ((k = PyIter_Next(i)) != 0) { |
| 650 | if ((v = PyObject_GetItem(map, k)) == 0 || |
| 651 | PyObject_SetItem(me, k, v)) |
| 652 | err = -1; |
| 653 | Py_DECREF(k); Py_XDECREF(v); |
| 654 | if (err) goto end; |
| 655 | } |
| 656 | if (PyErr_Occurred()) goto end; |
| 657 | rc = me; Py_INCREF(me); |
| 658 | end: |
| 659 | Py_XDECREF(i); |
| 660 | return (rc); |
| 661 | } |
| 662 | |
| 663 | PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg) |
| 664 | { |
| 665 | PyObject *i = 0, *k = 0, *v = 0, *rc = 0; |
| 666 | |
| 667 | if (!PyArg_ParseTuple(arg, ":popitem") || |
| 668 | (i = PyObject_GetIter(me))) |
| 669 | goto end; |
| 670 | if ((k = PyIter_Next(i)) == 0) { |
| 671 | if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty"); |
| 672 | goto end; |
| 673 | } |
| 674 | if ((v = PyObject_GetItem(me, k)) == 0 || |
| 675 | PyObject_DelItem(me, k)) |
| 676 | goto end; |
| 677 | rc = Py_BuildValue("(OO)", k, v); |
| 678 | end: |
| 679 | Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v); |
| 680 | return (rc); |
| 681 | } |
| 682 | |
| 683 | PyMethodDef gmap_pymethods[] = { |
| 684 | GMAP_METHODS |
| 685 | { 0 } |
| 686 | }; |
| 687 | |
| 688 | /*----- Initialization ----------------------------------------------------*/ |
| 689 | |
| 690 | void util_pyinit(void) |
| 691 | { |
| 692 | modname = PyString_FromString("catacomb"); |
| 693 | INITTYPE(itemiter, root); |
| 694 | INITTYPE(valiter, root); |
| 695 | } |
| 696 | |
| 697 | void util_pyinsert(PyObject *mod) |
| 698 | { |
| 699 | INSERT("ItemIter", itemiter_pytype); |
| 700 | INSERT("ValueIter", valiter_pytype); |
| 701 | } |
| 702 | |
| 703 | /*----- That's all, folks -------------------------------------------------*/ |