5 * Miscellaneous utilities (not Catacomb-specific)
7 * (c) 2005 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of the Python interface to Catacomb.
14 * Catacomb/Python is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * Catacomb/Python is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with Catacomb/Python; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 /*----- Header files ------------------------------------------------------*/
31 #include "catacomb-python.h"
33 /*----- Conversions -------------------------------------------------------*/
35 PyObject
*getulong(unsigned long w
)
38 return (PyInt_FromLong(w
));
40 return (PyLong_FromUnsignedLong(w
));
43 PyObject
*getbool(int b
)
49 PyObject
*abstract_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
51 PyErr_SetString(PyExc_TypeError
, "can't instantiate this class");
55 int convulong(PyObject
*o
, void *pp
)
58 unsigned long *p
= pp
;
63 if (i
< 0) VALERR("must be nonnegative");
66 if ((t
= PyNumber_Long(o
)) == 0) goto end
;
67 *p
= PyLong_AsUnsignedLong(t
);
69 if (PyErr_Occurred()) goto end
;
77 int convu##n(PyObject *o, void *pp) \
82 if (!convulong(o, &u)) goto end; \
83 if (u > MASK##n) VALERR("out of range"); \
91 int convuint(PyObject
*o
, void *pp
)
96 if (!convulong(o
, &u
)) goto end
;
97 if (u
> UINT_MAX
) VALERR("out of range");
104 int convmpw(PyObject
*o
, void *pp
)
109 if (!convulong(o
, &u
)) goto end
;
110 if (u
> MPW_MAX
) VALERR("out of range");
117 int convszt(PyObject
*o
, void *pp
)
122 if (!convulong(o
, &u
)) goto end
;
123 if (u
> ~(size_t)0) VALERR("out of range");
130 int convbool(PyObject
*o
, void *pp
)
132 *(int *)pp
= PyObject_IsTrue(o
);
136 /*----- Type messing ------------------------------------------------------*/
138 static const PyTypeObject emptytype
= { 0 };
140 void *newtype(PyTypeObject
*metaty
,
141 const PyTypeObject
*skel
,
144 PyHeapTypeObject
*ty
=
145 (PyHeapTypeObject
*)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty
, 0));
146 if (!skel
) skel
= &emptytype
;
147 memcpy(ty
, skel
, sizeof(*skel
));
148 if (ty
->ht_type
.tp_base
) Py_INCREF(ty
->ht_type
.tp_base
);
149 #define COPY(blah) do { \
150 if (ty->ht_type.tp_as_##blah) { \
151 memcpy(&ty->as_##blah, \
152 ty->ht_type.tp_as_##blah, \
153 sizeof(ty->as_##blah)); \
154 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
163 ty
->ht_name
= PyString_FromString(name
);
164 else if (ty
->ht_type
.tp_name
)
165 ty
->ht_name
= PyString_FromString(ty
->ht_type
.tp_name
);
167 ty
->ht_type
.tp_name
= PyString_AS_STRING(ty
->ht_name
);
168 PyObject_INIT(&ty
->ht_type
, metaty
);
173 PyTypeObject
*inittype(PyTypeObject
*tyskel
)
175 PyTypeObject
*ty
= newtype(&PyType_Type
, tyskel
, 0);
176 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
181 /*----- Constants ---------------------------------------------------------*/
183 void setconstants(PyObject
*mod
, const struct nameval
*c
)
188 if (c
->value
> LONG_MAX
)
189 x
= PyLong_FromUnsignedLong(c
->value
);
191 x
= PyInt_FromLong(c
->value
);
192 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
197 /*----- Building method tables --------------------------------------------*/
199 DA_DECL(method_v
, PyMethodDef
);
200 static method_v global_pymethods
= DA_INIT
;
201 void addmethods(const PyMethodDef
*m
)
205 for (n
= 0; m
[n
].ml_name
; n
++);
206 DA_ENSURE(&global_pymethods
, n
);
207 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
209 DA_EXTEND(&global_pymethods
, n
);
212 PyMethodDef
*donemethods(void)
214 static const PyMethodDef mzero
= { 0 };
215 DA_PUSH(&global_pymethods
, mzero
);
216 return (DA(&global_pymethods
));
219 /*----- Exceptions --------------------------------------------------------*/
221 PyObject
* mkexc(PyObject
*mod
, PyObject
*base
,
222 const char *name
, PyMethodDef
*mm
)
224 PyObject
*nameobj
= 0;
230 if ((nameobj
= PyString_FromFormat("%s.%s",
231 PyModule_GetName(mod
),
233 (dict
= PyDict_New()) == 0 ||
234 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
239 while (mm
->ml_name
) {
240 if ((func
= PyCFunction_NewEx(mm
, 0, mod
)) == 0 ||
241 (meth
= PyMethod_New(func
, 0, exc
)) == 0 ||
242 PyDict_SetItemString(dict
, mm
->ml_name
, meth
))
244 Py_DECREF(func
); func
= 0;
245 Py_DECREF(meth
); meth
= 0;
263 /*----- Generic dictionary methods ----------------------------------------*/
265 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
267 typedef struct iter_pyobj
{
272 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
273 #define ITER_I(o) (((iter_pyobj *)(o))->i)
275 static void iter_pydealloc(PyObject
*me
)
276 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
278 static PyObject
*itemiter_pynext(PyObject
*me
)
280 PyObject
*k
= 0, *v
= 0, *rc
= 0;
282 if ((k
= PyIter_Next(ITER_I(me
))) != 0 &&
283 (v
= PyObject_GetItem(ITER_MAP(me
), k
)) != 0)
284 rc
= Py_BuildValue("(OO)", k
, v
);
285 Py_XDECREF(k
); Py_XDECREF(v
);
289 static PyTypeObject itemiter_pytype_skel
= {
290 PyObject_HEAD_INIT(0) 0, /* Header */
291 "ItemIter", /* @tp_name@ */
292 sizeof(iter_pyobj
), /* @tp_basicsize@ */
293 0, /* @tp_itemsize@ */
295 iter_pydealloc
, /* @tp_dealloc@ */
297 0, /* @tp_getattr@ */
298 0, /* @tp_setattr@ */
299 0, /* @tp_compare@ */
301 0, /* @tp_as_number@ */
302 0, /* @tp_as_sequence@ */
303 0, /* @tp_as_mapping@ */
307 0, /* @tp_getattro@ */
308 0, /* @tp_setattro@ */
309 0, /* @tp_as_buffer@ */
310 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
314 "Iterates over the items of a mapping.",
316 0, /* @tp_traverse@ */
318 0, /* @tp_richcompare@ */
319 0, /* @tp_weaklistoffset@ */
320 PyObject_SelfIter
, /* @tp_iter@ */
321 itemiter_pynext
, /* @tp_iternext@ */
322 0, /* @tp_methods@ */
323 0, /* @tp_members@ */
327 0, /* @tp_descr_get@ */
328 0, /* @tp_descr_set@ */
329 0, /* @tp_dictoffset@ */
331 PyType_GenericAlloc
, /* @tp_alloc@ */
332 abstract_pynew
, /* @tp_new@ */
337 static PyObject
*valiter_pynext(PyObject
*me
)
339 PyObject
*k
= 0, *rc
= 0;
341 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
342 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
347 static PyTypeObject valiter_pytype_skel
= {
348 PyObject_HEAD_INIT(0) 0, /* Header */
349 "ValueIter", /* @tp_name@ */
350 sizeof(iter_pyobj
), /* @tp_basicsize@ */
351 0, /* @tp_itemsize@ */
353 iter_pydealloc
, /* @tp_dealloc@ */
355 0, /* @tp_getattr@ */
356 0, /* @tp_setattr@ */
357 0, /* @tp_compare@ */
359 0, /* @tp_as_number@ */
360 0, /* @tp_as_sequence@ */
361 0, /* @tp_as_mapping@ */
365 0, /* @tp_getattro@ */
366 0, /* @tp_setattro@ */
367 0, /* @tp_as_buffer@ */
368 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
372 "Iterates over the items of a mapping.",
374 0, /* @tp_traverse@ */
376 0, /* @tp_richcompare@ */
377 0, /* @tp_weaklistoffset@ */
378 PyObject_SelfIter
, /* @tp_iter@ */
379 valiter_pynext
, /* @tp_iternext@ */
380 0, /* @tp_methods@ */
381 0, /* @tp_members@ */
385 0, /* @tp_descr_get@ */
386 0, /* @tp_descr_set@ */
387 0, /* @tp_dictoffset@ */
389 PyType_GenericAlloc
, /* @tp_alloc@ */
390 abstract_pynew
, /* @tp_new@ */
395 PySequenceMethods gmap_pysequence
= {
401 0, /* @sq_ass_item@ */
402 0, /* @sq_ass_slice@ */
403 PyMapping_HasKey
, /* @sq_contains@ */
404 0, /* @sq_inplace_concat@ */
405 0 /* @sq_inplace_repeat@ */
408 int gmap_pysize(PyObject
*me
)
410 PyObject
*i
= 0, *x
= 0;
414 if ((i
= PyObject_GetIter(me
)) == 0) goto done
;
415 while ((x
= PyIter_Next(i
)) != 0) { n
++; Py_DECREF(x
); x
= 0; }
416 if (PyErr_Occurred()) goto done
;
419 Py_XDECREF(i
); Py_XDECREF(x
);
423 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
426 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
427 return (getbool(PyMapping_HasKey(me
, k
)));
430 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
432 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
435 if (!PyArg_ParseTuple(arg
, ":keys") ||
436 (l
= PyList_New(0)) == 0 ||
437 (i
= PyObject_GetIter(me
)) == 0)
439 while ((k
= PyIter_Next(i
)) != 0)
440 { err
= PyList_Append(l
, k
); Py_DECREF(k
); if (err
) goto done
; }
441 if (PyErr_Occurred()) goto done
;
444 Py_XDECREF(l
); Py_XDECREF(i
);
448 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
450 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
453 if (!PyArg_ParseTuple(arg
, ":values") ||
454 (l
= PyList_New(0)) == 0 ||
455 (i
= PyObject_GetIter(me
)) == 0)
457 while ((k
= PyIter_Next(i
)) != 0) {
458 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
461 Py_DECREF(k
); Py_XDECREF(v
);
464 if (PyErr_Occurred()) goto done
;
467 Py_XDECREF(l
); Py_XDECREF(i
);
471 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
473 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
476 if (!PyArg_ParseTuple(arg
, ":items") ||
477 (l
= PyList_New(0)) == 0 ||
478 (i
= PyObject_GetIter(me
)) == 0)
480 while ((k
= PyIter_Next(i
)) != 0) {
482 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
483 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
486 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
489 if (PyErr_Occurred()) goto done
;
492 Py_XDECREF(l
); Py_XDECREF(i
);
496 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
498 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
499 return (PyObject_GetIter(me
));
502 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
507 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
508 (i
= PyObject_GetIter(me
)) == 0)
510 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
511 ii
->map
= me
; Py_INCREF(me
);
513 return ((PyObject
*)ii
);
516 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
521 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
522 (i
= PyObject_GetIter(me
)) == 0)
524 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
525 ii
->map
= me
; Py_INCREF(me
);
527 return ((PyObject
*)ii
);
530 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
532 PyObject
*i
= 0, *k
= 0, *rc
= 0;
534 if (!PyArg_ParseTuple(arg
, ":clear") ||
535 (i
= PyObject_GetIter(me
)) == 0)
537 while ((k
= PyIter_Next(i
)) != 0) {
538 PyObject_DelItem(me
, k
);
541 if (PyErr_Occurred()) goto end
;
542 rc
= me
; Py_INCREF(me
);
548 static char *def_kwlist
[] = { "key", "default", 0 };
550 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
552 PyObject
*k
, *def
= Py_None
, *v
;
554 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
556 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
561 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
563 PyObject
*k
, *def
= Py_None
, *v
;
565 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
566 def_kwlist
, &k
, &def
))
568 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
570 if (PyObject_SetItem(me
, k
, def
)) return (0);
574 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
576 PyObject
*k
, *def
= 0, *v
;
578 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
580 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
581 PyObject_DelItem(me
, k
);
588 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
590 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
593 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
594 (i
= PyObject_GetIter(map
)) == 0)
596 while ((k
= PyIter_Next(i
)) != 0) {
597 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
598 PyObject_SetItem(me
, k
, v
))
600 Py_DECREF(k
); Py_XDECREF(v
);
603 if (PyErr_Occurred()) goto end
;
604 rc
= me
; Py_INCREF(me
);
610 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
612 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
614 if (!PyArg_ParseTuple(arg
, ":popitem") ||
615 (i
= PyObject_GetIter(me
)))
617 if ((k
= PyIter_Next(i
)) == 0) {
618 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
621 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
622 PyObject_DelItem(me
, k
))
624 rc
= Py_BuildValue("(OO)", k
, v
);
626 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
630 PyMethodDef gmap_pymethods
[] = {
635 /*----- Initialization ----------------------------------------------------*/
637 void util_pyinit(void)
639 INITTYPE(itemiter
, root
);
640 INITTYPE(valiter
, root
);
643 void util_pyinsert(PyObject
*mod
)
645 INSERT("ItemIter", itemiter_pytype
);
646 INSERT("ValueIter", valiter_pytype
);
649 /*----- That's all, folks -------------------------------------------------*/