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 static PyObject
*i32
= 0;
46 static int init_i32(void)
47 { if (!i32
&& (i32
= PyInt_FromLong(32)) == 0) return (-1); return (0); }
49 PyObject
*getk64(kludge64 u
)
51 PyObject
*i
= 0, *j
= 0, *t
;
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
;
58 if ((j
= PyLong_FromUnsignedLong(LO64(u
))) == 0) goto end
;
59 if ((t
= PyNumber_InPlaceOr(i
, j
)) == 0) goto end
;
61 if ((rc
= PyNumber_Int(i
)) == 0) goto end
;
68 PyObject
*getbool(int b
)
74 PyObject
*abstract_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
76 PyErr_SetString(PyExc_TypeError
, "can't instantiate this class");
80 int convulong(PyObject
*o
, void *pp
)
83 unsigned long *p
= pp
;
86 if (!o
) VALERR("can't delete");
89 if (i
< 0) VALERR("must be nonnegative");
92 if ((t
= PyNumber_Long(o
)) == 0) goto end
;
93 *p
= PyLong_AsUnsignedLong(t
);
95 if (PyErr_Occurred()) goto end
;
103 int convu##n(PyObject *o, void *pp) \
108 if (!convulong(o, &u)) goto end; \
109 if (u > MASK##n) VALERR("out of range"); \
117 int convuint(PyObject
*o
, void *pp
)
122 if (!convulong(o
, &u
)) goto end
;
123 if (u
> UINT_MAX
) VALERR("out of range");
130 int convk64(PyObject
*o
, void *pp
)
136 if (!o
) VALERR("can't delete");
137 if (init_i32()) goto end
;
138 if ((i
= PyNumber_Int(o
)) == 0) goto end
;
139 lo
= PyInt_AsUnsignedLongMask(i
);
140 if ((t
= PyNumber_InPlaceRshift(i
, i32
)) == 0) goto end
;
142 hi
= PyInt_AsUnsignedLongMask(i
);
143 if ((t
= PyNumber_InPlaceRshift(i
, i32
)) == 0) goto end
;
145 if (PyObject_IsTrue(i
)) VALERR("out of range");
146 SET64(*(kludge64
*)pp
, hi
, lo
);
153 int convmpw(PyObject
*o
, void *pp
)
158 if (!convulong(o
, &u
)) goto end
;
159 if (u
> MPW_MAX
) VALERR("out of range");
166 int convszt(PyObject
*o
, void *pp
)
171 if (!convulong(o
, &u
)) goto end
;
172 if (u
> ~(size_t)0) VALERR("out of range");
179 int convbool(PyObject
*o
, void *pp
)
181 if (!o
) VALERR("can't delete");
182 *(int *)pp
= PyObject_IsTrue(o
);
188 /*----- Type messing ------------------------------------------------------*/
190 static const PyTypeObject emptytype
= { 0 };
192 void *newtype(PyTypeObject
*metaty
,
193 const PyTypeObject
*skel
,
196 PyHeapTypeObject
*ty
=
197 (PyHeapTypeObject
*)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty
, 0));
198 if (!skel
) skel
= &emptytype
;
199 memcpy(ty
, skel
, sizeof(*skel
));
200 if (ty
->ht_type
.tp_base
) Py_INCREF(ty
->ht_type
.tp_base
);
201 #define COPY(blah) do { \
202 if (ty->ht_type.tp_as_##blah) { \
203 memcpy(&ty->as_##blah, \
204 ty->ht_type.tp_as_##blah, \
205 sizeof(ty->as_##blah)); \
206 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
215 ty
->ht_name
= PyString_FromString(name
);
216 else if (ty
->ht_type
.tp_name
)
217 ty
->ht_name
= PyString_FromString(ty
->ht_type
.tp_name
);
219 ty
->ht_type
.tp_name
= PyString_AS_STRING(ty
->ht_name
);
220 DISCARD(PyObject_INIT(&ty
->ht_type
, metaty
));
225 void typeready(PyTypeObject
*ty
)
228 PyDict_SetItemString(ty
->tp_dict
, "__module__", modname
);
231 PyTypeObject
*inittype(PyTypeObject
*tyskel
, PyTypeObject
*meta
)
233 PyTypeObject
*ty
= newtype(meta
, tyskel
, 0);
234 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
239 /*----- Constants ---------------------------------------------------------*/
241 void setconstants(PyObject
*mod
, const struct nameval
*c
)
246 if (c
->value
> LONG_MAX
)
247 x
= PyLong_FromUnsignedLong(c
->value
);
249 x
= PyInt_FromLong(c
->value
);
250 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
255 /*----- Building method tables --------------------------------------------*/
257 DA_DECL(method_v
, PyMethodDef
);
258 static method_v global_pymethods
= DA_INIT
;
259 void addmethods(const PyMethodDef
*m
)
263 for (n
= 0; m
[n
].ml_name
; n
++);
264 DA_ENSURE(&global_pymethods
, n
);
265 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
267 DA_EXTEND(&global_pymethods
, n
);
270 PyMethodDef
*donemethods(void)
272 static const PyMethodDef mzero
= { 0 };
273 DA_PUSH(&global_pymethods
, mzero
);
274 return (DA(&global_pymethods
));
277 /*----- Exceptions --------------------------------------------------------*/
279 PyObject
*mkexc(PyObject
*mod
, PyObject
*base
,
280 const char *name
, PyMethodDef
*mm
)
282 PyObject
*nameobj
= 0;
288 if ((nameobj
= PyString_FromFormat("%s.%s",
289 PyModule_GetName(mod
),
291 (dict
= PyDict_New()) == 0 ||
292 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
297 while (mm
->ml_name
) {
298 if ((func
= PyCFunction_NewEx(mm
, 0, mod
)) == 0 ||
299 (meth
= PyMethod_New(func
, 0, exc
)) == 0 ||
300 PyDict_SetItemString(dict
, mm
->ml_name
, meth
))
302 Py_DECREF(func
); func
= 0;
303 Py_DECREF(meth
); meth
= 0;
321 /*----- Generic dictionary methods ----------------------------------------*/
323 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
325 typedef struct iter_pyobj
{
330 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
331 #define ITER_I(o) (((iter_pyobj *)(o))->i)
333 static void iter_pydealloc(PyObject
*me
)
334 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
336 static PyObject
*itemiter_pynext(PyObject
*me
)
338 PyObject
*k
= 0, *v
= 0, *rc
= 0;
340 if ((k
= PyIter_Next(ITER_I(me
))) != 0 &&
341 (v
= PyObject_GetItem(ITER_MAP(me
), k
)) != 0)
342 rc
= Py_BuildValue("(OO)", k
, v
);
343 Py_XDECREF(k
); Py_XDECREF(v
);
347 static PyTypeObject itemiter_pytype_skel
= {
348 PyObject_HEAD_INIT(0) 0, /* Header */
349 "ItemIter", /* @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 itemiter_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 static PyObject
*valiter_pynext(PyObject
*me
)
397 PyObject
*k
= 0, *rc
= 0;
399 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
400 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
405 static PyTypeObject valiter_pytype_skel
= {
406 PyObject_HEAD_INIT(0) 0, /* Header */
407 "ValueIter", /* @tp_name@ */
408 sizeof(iter_pyobj
), /* @tp_basicsize@ */
409 0, /* @tp_itemsize@ */
411 iter_pydealloc
, /* @tp_dealloc@ */
413 0, /* @tp_getattr@ */
414 0, /* @tp_setattr@ */
415 0, /* @tp_compare@ */
417 0, /* @tp_as_number@ */
418 0, /* @tp_as_sequence@ */
419 0, /* @tp_as_mapping@ */
423 0, /* @tp_getattro@ */
424 0, /* @tp_setattro@ */
425 0, /* @tp_as_buffer@ */
426 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
430 "Iterates over the items of a mapping.",
432 0, /* @tp_traverse@ */
434 0, /* @tp_richcompare@ */
435 0, /* @tp_weaklistoffset@ */
436 PyObject_SelfIter
, /* @tp_iter@ */
437 valiter_pynext
, /* @tp_iternext@ */
438 0, /* @tp_methods@ */
439 0, /* @tp_members@ */
443 0, /* @tp_descr_get@ */
444 0, /* @tp_descr_set@ */
445 0, /* @tp_dictoffset@ */
447 PyType_GenericAlloc
, /* @tp_alloc@ */
448 abstract_pynew
, /* @tp_new@ */
453 PySequenceMethods gmap_pysequence
= {
459 0, /* @sq_ass_item@ */
460 0, /* @sq_ass_slice@ */
461 PyMapping_HasKey
, /* @sq_contains@ */
462 0, /* @sq_inplace_concat@ */
463 0 /* @sq_inplace_repeat@ */
466 Py_ssize_t
gmap_pysize(PyObject
*me
)
468 PyObject
*i
= 0, *x
= 0;
472 if ((i
= PyObject_GetIter(me
)) == 0) goto done
;
473 while ((x
= PyIter_Next(i
)) != 0) { n
++; Py_DECREF(x
); x
= 0; }
474 if (PyErr_Occurred()) goto done
;
477 Py_XDECREF(i
); Py_XDECREF(x
);
481 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
484 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
485 return (getbool(PyMapping_HasKey(me
, k
)));
488 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
490 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
493 if (!PyArg_ParseTuple(arg
, ":keys") ||
494 (l
= PyList_New(0)) == 0 ||
495 (i
= PyObject_GetIter(me
)) == 0)
497 while ((k
= PyIter_Next(i
)) != 0)
498 { err
= PyList_Append(l
, k
); Py_DECREF(k
); if (err
) goto done
; }
499 if (PyErr_Occurred()) goto done
;
502 Py_XDECREF(l
); Py_XDECREF(i
);
506 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
508 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
511 if (!PyArg_ParseTuple(arg
, ":values") ||
512 (l
= PyList_New(0)) == 0 ||
513 (i
= PyObject_GetIter(me
)) == 0)
515 while ((k
= PyIter_Next(i
)) != 0) {
516 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
519 Py_DECREF(k
); Py_XDECREF(v
);
522 if (PyErr_Occurred()) goto done
;
525 Py_XDECREF(l
); Py_XDECREF(i
);
529 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
531 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
534 if (!PyArg_ParseTuple(arg
, ":items") ||
535 (l
= PyList_New(0)) == 0 ||
536 (i
= PyObject_GetIter(me
)) == 0)
538 while ((k
= PyIter_Next(i
)) != 0) {
540 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
541 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
544 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
547 if (PyErr_Occurred()) goto done
;
550 Py_XDECREF(l
); Py_XDECREF(i
);
554 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
556 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
557 return (PyObject_GetIter(me
));
560 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
565 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
566 (i
= PyObject_GetIter(me
)) == 0)
568 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
569 ii
->map
= me
; Py_INCREF(me
);
571 return ((PyObject
*)ii
);
574 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
579 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
580 (i
= PyObject_GetIter(me
)) == 0)
582 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
583 ii
->map
= me
; Py_INCREF(me
);
585 return ((PyObject
*)ii
);
588 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
590 PyObject
*i
= 0, *k
= 0, *rc
= 0;
592 if (!PyArg_ParseTuple(arg
, ":clear") ||
593 (i
= PyObject_GetIter(me
)) == 0)
595 while ((k
= PyIter_Next(i
)) != 0) {
596 PyObject_DelItem(me
, k
);
599 if (PyErr_Occurred()) goto end
;
600 rc
= me
; Py_INCREF(me
);
606 static char *def_kwlist
[] = { "key", "default", 0 };
608 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
610 PyObject
*k
, *def
= Py_None
, *v
;
612 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
614 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
619 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
621 PyObject
*k
, *def
= Py_None
, *v
;
623 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
624 def_kwlist
, &k
, &def
))
626 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
628 if (PyObject_SetItem(me
, k
, def
)) return (0);
632 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
634 PyObject
*k
, *def
= 0, *v
;
636 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
638 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
639 PyObject_DelItem(me
, k
);
646 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
648 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
651 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
652 (i
= PyObject_GetIter(map
)) == 0)
654 while ((k
= PyIter_Next(i
)) != 0) {
655 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
656 PyObject_SetItem(me
, k
, v
))
658 Py_DECREF(k
); Py_XDECREF(v
);
661 if (PyErr_Occurred()) goto end
;
662 rc
= me
; Py_INCREF(me
);
668 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
670 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
672 if (!PyArg_ParseTuple(arg
, ":popitem") ||
673 (i
= PyObject_GetIter(me
)))
675 if ((k
= PyIter_Next(i
)) == 0) {
676 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
679 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
680 PyObject_DelItem(me
, k
))
682 rc
= Py_BuildValue("(OO)", k
, v
);
684 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
688 PyMethodDef gmap_pymethods
[] = {
693 /*----- Initialization ----------------------------------------------------*/
695 void util_pyinit(void)
697 modname
= PyString_FromString("catacomb");
698 INITTYPE(itemiter
, root
);
699 INITTYPE(valiter
, root
);
702 void util_pyinsert(PyObject
*mod
)
704 INSERT("ItemIter", itemiter_pytype
);
705 INSERT("ValueIter", valiter_pytype
);
708 /*----- That's all, folks -------------------------------------------------*/