3 * Miscellaneous utilities (not Catacomb-specific)
5 * (c) 2005 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
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.
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.
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.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 /*----- External values ---------------------------------------------------*/
33 static PyObject
*modname
= 0;
35 /*----- Conversions -------------------------------------------------------*/
37 PyObject
*getulong(unsigned long w
)
40 return (PyInt_FromLong(w
));
42 return (PyLong_FromUnsignedLong(w
));
45 PyObject
*getbool(int b
)
51 PyObject
*abstract_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
53 PyErr_SetString(PyExc_TypeError
, "can't instantiate this class");
57 int convulong(PyObject
*o
, void *pp
)
60 unsigned long *p
= pp
;
63 if (!o
) VALERR("can't delete");
66 if (i
< 0) VALERR("must be nonnegative");
69 if ((t
= PyNumber_Long(o
)) == 0) goto end
;
70 *p
= PyLong_AsUnsignedLong(t
);
72 if (PyErr_Occurred()) goto end
;
80 int convu##n(PyObject *o, void *pp) \
85 if (!convulong(o, &u)) goto end; \
86 if (u > MASK##n) VALERR("out of range"); \
94 int convuint(PyObject
*o
, void *pp
)
99 if (!convulong(o
, &u
)) goto end
;
100 if (u
> UINT_MAX
) VALERR("out of range");
107 int convmpw(PyObject
*o
, void *pp
)
112 if (!convulong(o
, &u
)) goto end
;
113 if (u
> MPW_MAX
) VALERR("out of range");
120 int convszt(PyObject
*o
, void *pp
)
125 if (!convulong(o
, &u
)) goto end
;
126 if (u
> ~(size_t)0) VALERR("out of range");
133 int convbool(PyObject
*o
, void *pp
)
135 if (!o
) VALERR("can't delete");
136 *(int *)pp
= PyObject_IsTrue(o
);
142 /*----- Type messing ------------------------------------------------------*/
144 static const PyTypeObject emptytype
= { 0 };
146 void *newtype(PyTypeObject
*metaty
,
147 const PyTypeObject
*skel
,
150 PyHeapTypeObject
*ty
=
151 (PyHeapTypeObject
*)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty
, 0));
152 if (!skel
) skel
= &emptytype
;
153 memcpy(ty
, skel
, sizeof(*skel
));
154 if (ty
->ht_type
.tp_base
) Py_INCREF(ty
->ht_type
.tp_base
);
155 #define COPY(blah) do { \
156 if (ty->ht_type.tp_as_##blah) { \
157 memcpy(&ty->as_##blah, \
158 ty->ht_type.tp_as_##blah, \
159 sizeof(ty->as_##blah)); \
160 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
169 ty
->ht_name
= PyString_FromString(name
);
170 else if (ty
->ht_type
.tp_name
)
171 ty
->ht_name
= PyString_FromString(ty
->ht_type
.tp_name
);
173 ty
->ht_type
.tp_name
= PyString_AS_STRING(ty
->ht_name
);
174 DISCARD(PyObject_INIT(&ty
->ht_type
, metaty
));
179 void typeready(PyTypeObject
*ty
)
182 PyDict_SetItemString(ty
->tp_dict
, "__module__", modname
);
185 PyTypeObject
*inittype(PyTypeObject
*tyskel
)
187 PyTypeObject
*ty
= newtype(&PyType_Type
, tyskel
, 0);
188 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
193 /*----- Constants ---------------------------------------------------------*/
195 void setconstants(PyObject
*mod
, const struct nameval
*c
)
200 if (c
->value
> LONG_MAX
)
201 x
= PyLong_FromUnsignedLong(c
->value
);
203 x
= PyInt_FromLong(c
->value
);
204 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
209 /*----- Building method tables --------------------------------------------*/
211 DA_DECL(method_v
, PyMethodDef
);
212 static method_v global_pymethods
= DA_INIT
;
213 void addmethods(const PyMethodDef
*m
)
217 for (n
= 0; m
[n
].ml_name
; n
++);
218 DA_ENSURE(&global_pymethods
, n
);
219 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
221 DA_EXTEND(&global_pymethods
, n
);
224 PyMethodDef
*donemethods(void)
226 static const PyMethodDef mzero
= { 0 };
227 DA_PUSH(&global_pymethods
, mzero
);
228 return (DA(&global_pymethods
));
231 /*----- Exceptions --------------------------------------------------------*/
233 PyObject
* mkexc(PyObject
*mod
, PyObject
*base
,
234 const char *name
, PyMethodDef
*mm
)
236 PyObject
*nameobj
= 0;
242 if ((nameobj
= PyString_FromFormat("%s.%s",
243 PyModule_GetName(mod
),
245 (dict
= PyDict_New()) == 0 ||
246 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
251 while (mm
->ml_name
) {
252 if ((func
= PyCFunction_NewEx(mm
, 0, mod
)) == 0 ||
253 (meth
= PyMethod_New(func
, 0, exc
)) == 0 ||
254 PyDict_SetItemString(dict
, mm
->ml_name
, meth
))
256 Py_DECREF(func
); func
= 0;
257 Py_DECREF(meth
); meth
= 0;
275 /*----- Generic dictionary methods ----------------------------------------*/
277 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
279 typedef struct iter_pyobj
{
284 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
285 #define ITER_I(o) (((iter_pyobj *)(o))->i)
287 static void iter_pydealloc(PyObject
*me
)
288 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
290 static PyObject
*itemiter_pynext(PyObject
*me
)
292 PyObject
*k
= 0, *v
= 0, *rc
= 0;
294 if ((k
= PyIter_Next(ITER_I(me
))) != 0 &&
295 (v
= PyObject_GetItem(ITER_MAP(me
), k
)) != 0)
296 rc
= Py_BuildValue("(OO)", k
, v
);
297 Py_XDECREF(k
); Py_XDECREF(v
);
301 static PyTypeObject itemiter_pytype_skel
= {
302 PyObject_HEAD_INIT(0) 0, /* Header */
303 "ItemIter", /* @tp_name@ */
304 sizeof(iter_pyobj
), /* @tp_basicsize@ */
305 0, /* @tp_itemsize@ */
307 iter_pydealloc
, /* @tp_dealloc@ */
309 0, /* @tp_getattr@ */
310 0, /* @tp_setattr@ */
311 0, /* @tp_compare@ */
313 0, /* @tp_as_number@ */
314 0, /* @tp_as_sequence@ */
315 0, /* @tp_as_mapping@ */
319 0, /* @tp_getattro@ */
320 0, /* @tp_setattro@ */
321 0, /* @tp_as_buffer@ */
322 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
326 "Iterates over the items of a mapping.",
328 0, /* @tp_traverse@ */
330 0, /* @tp_richcompare@ */
331 0, /* @tp_weaklistoffset@ */
332 PyObject_SelfIter
, /* @tp_iter@ */
333 itemiter_pynext
, /* @tp_iternext@ */
334 0, /* @tp_methods@ */
335 0, /* @tp_members@ */
339 0, /* @tp_descr_get@ */
340 0, /* @tp_descr_set@ */
341 0, /* @tp_dictoffset@ */
343 PyType_GenericAlloc
, /* @tp_alloc@ */
344 abstract_pynew
, /* @tp_new@ */
349 static PyObject
*valiter_pynext(PyObject
*me
)
351 PyObject
*k
= 0, *rc
= 0;
353 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
354 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
359 static PyTypeObject valiter_pytype_skel
= {
360 PyObject_HEAD_INIT(0) 0, /* Header */
361 "ValueIter", /* @tp_name@ */
362 sizeof(iter_pyobj
), /* @tp_basicsize@ */
363 0, /* @tp_itemsize@ */
365 iter_pydealloc
, /* @tp_dealloc@ */
367 0, /* @tp_getattr@ */
368 0, /* @tp_setattr@ */
369 0, /* @tp_compare@ */
371 0, /* @tp_as_number@ */
372 0, /* @tp_as_sequence@ */
373 0, /* @tp_as_mapping@ */
377 0, /* @tp_getattro@ */
378 0, /* @tp_setattro@ */
379 0, /* @tp_as_buffer@ */
380 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
384 "Iterates over the items of a mapping.",
386 0, /* @tp_traverse@ */
388 0, /* @tp_richcompare@ */
389 0, /* @tp_weaklistoffset@ */
390 PyObject_SelfIter
, /* @tp_iter@ */
391 valiter_pynext
, /* @tp_iternext@ */
392 0, /* @tp_methods@ */
393 0, /* @tp_members@ */
397 0, /* @tp_descr_get@ */
398 0, /* @tp_descr_set@ */
399 0, /* @tp_dictoffset@ */
401 PyType_GenericAlloc
, /* @tp_alloc@ */
402 abstract_pynew
, /* @tp_new@ */
407 PySequenceMethods gmap_pysequence
= {
413 0, /* @sq_ass_item@ */
414 0, /* @sq_ass_slice@ */
415 PyMapping_HasKey
, /* @sq_contains@ */
416 0, /* @sq_inplace_concat@ */
417 0 /* @sq_inplace_repeat@ */
420 Py_ssize_t
gmap_pysize(PyObject
*me
)
422 PyObject
*i
= 0, *x
= 0;
426 if ((i
= PyObject_GetIter(me
)) == 0) goto done
;
427 while ((x
= PyIter_Next(i
)) != 0) { n
++; Py_DECREF(x
); x
= 0; }
428 if (PyErr_Occurred()) goto done
;
431 Py_XDECREF(i
); Py_XDECREF(x
);
435 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
438 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
439 return (getbool(PyMapping_HasKey(me
, k
)));
442 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
444 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
447 if (!PyArg_ParseTuple(arg
, ":keys") ||
448 (l
= PyList_New(0)) == 0 ||
449 (i
= PyObject_GetIter(me
)) == 0)
451 while ((k
= PyIter_Next(i
)) != 0)
452 { err
= PyList_Append(l
, k
); Py_DECREF(k
); if (err
) goto done
; }
453 if (PyErr_Occurred()) goto done
;
456 Py_XDECREF(l
); Py_XDECREF(i
);
460 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
462 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
465 if (!PyArg_ParseTuple(arg
, ":values") ||
466 (l
= PyList_New(0)) == 0 ||
467 (i
= PyObject_GetIter(me
)) == 0)
469 while ((k
= PyIter_Next(i
)) != 0) {
470 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
473 Py_DECREF(k
); Py_XDECREF(v
);
476 if (PyErr_Occurred()) goto done
;
479 Py_XDECREF(l
); Py_XDECREF(i
);
483 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
485 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
488 if (!PyArg_ParseTuple(arg
, ":items") ||
489 (l
= PyList_New(0)) == 0 ||
490 (i
= PyObject_GetIter(me
)) == 0)
492 while ((k
= PyIter_Next(i
)) != 0) {
494 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
495 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
498 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
501 if (PyErr_Occurred()) goto done
;
504 Py_XDECREF(l
); Py_XDECREF(i
);
508 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
510 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
511 return (PyObject_GetIter(me
));
514 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
519 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
520 (i
= PyObject_GetIter(me
)) == 0)
522 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
523 ii
->map
= me
; Py_INCREF(me
);
525 return ((PyObject
*)ii
);
528 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
533 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
534 (i
= PyObject_GetIter(me
)) == 0)
536 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
537 ii
->map
= me
; Py_INCREF(me
);
539 return ((PyObject
*)ii
);
542 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
544 PyObject
*i
= 0, *k
= 0, *rc
= 0;
546 if (!PyArg_ParseTuple(arg
, ":clear") ||
547 (i
= PyObject_GetIter(me
)) == 0)
549 while ((k
= PyIter_Next(i
)) != 0) {
550 PyObject_DelItem(me
, k
);
553 if (PyErr_Occurred()) goto end
;
554 rc
= me
; Py_INCREF(me
);
560 static char *def_kwlist
[] = { "key", "default", 0 };
562 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
564 PyObject
*k
, *def
= Py_None
, *v
;
566 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
568 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
573 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
575 PyObject
*k
, *def
= Py_None
, *v
;
577 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
578 def_kwlist
, &k
, &def
))
580 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
582 if (PyObject_SetItem(me
, k
, def
)) return (0);
586 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
588 PyObject
*k
, *def
= 0, *v
;
590 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
592 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
593 PyObject_DelItem(me
, k
);
600 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
602 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
605 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
606 (i
= PyObject_GetIter(map
)) == 0)
608 while ((k
= PyIter_Next(i
)) != 0) {
609 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
610 PyObject_SetItem(me
, k
, v
))
612 Py_DECREF(k
); Py_XDECREF(v
);
615 if (PyErr_Occurred()) goto end
;
616 rc
= me
; Py_INCREF(me
);
622 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
624 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
626 if (!PyArg_ParseTuple(arg
, ":popitem") ||
627 (i
= PyObject_GetIter(me
)))
629 if ((k
= PyIter_Next(i
)) == 0) {
630 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
633 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
634 PyObject_DelItem(me
, k
))
636 rc
= Py_BuildValue("(OO)", k
, v
);
638 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
642 PyMethodDef gmap_pymethods
[] = {
647 /*----- Initialization ----------------------------------------------------*/
649 void util_pyinit(void)
651 modname
= PyString_FromString("catacomb");
652 INITTYPE(itemiter
, root
);
653 INITTYPE(valiter
, root
);
656 void util_pyinsert(PyObject
*mod
)
658 INSERT("ItemIter", itemiter_pytype
);
659 INSERT("ValueIter", valiter_pytype
);
662 /*----- That's all, folks -------------------------------------------------*/