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 (init_i32()) goto end
;
137 if ((i
= PyNumber_Int(o
)) == 0) goto end
;
138 lo
= PyInt_AsUnsignedLongMask(i
);
139 if ((t
= PyNumber_InPlaceRshift(i
, i32
)) == 0) goto end
;
141 hi
= PyInt_AsUnsignedLongMask(i
);
142 if ((t
= PyNumber_InPlaceRshift(i
, i32
)) == 0) goto end
;
144 if (PyObject_IsTrue(i
)) VALERR("out of range");
145 SET64(*(kludge64
*)pp
, hi
, lo
);
152 int convmpw(PyObject
*o
, void *pp
)
157 if (!convulong(o
, &u
)) goto end
;
158 if (u
> MPW_MAX
) VALERR("out of range");
165 int convszt(PyObject
*o
, void *pp
)
170 if (!convulong(o
, &u
)) goto end
;
171 if (u
> ~(size_t)0) VALERR("out of range");
178 int convbool(PyObject
*o
, void *pp
)
180 if (!o
) VALERR("can't delete");
181 *(int *)pp
= PyObject_IsTrue(o
);
187 /*----- Type messing ------------------------------------------------------*/
189 static const PyTypeObject emptytype
= { 0 };
191 void *newtype(PyTypeObject
*metaty
,
192 const PyTypeObject
*skel
,
195 PyHeapTypeObject
*ty
=
196 (PyHeapTypeObject
*)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty
, 0));
197 if (!skel
) skel
= &emptytype
;
198 memcpy(ty
, skel
, sizeof(*skel
));
199 if (ty
->ht_type
.tp_base
) Py_INCREF(ty
->ht_type
.tp_base
);
200 #define COPY(blah) do { \
201 if (ty->ht_type.tp_as_##blah) { \
202 memcpy(&ty->as_##blah, \
203 ty->ht_type.tp_as_##blah, \
204 sizeof(ty->as_##blah)); \
205 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
214 ty
->ht_name
= PyString_FromString(name
);
215 else if (ty
->ht_type
.tp_name
)
216 ty
->ht_name
= PyString_FromString(ty
->ht_type
.tp_name
);
218 ty
->ht_type
.tp_name
= PyString_AS_STRING(ty
->ht_name
);
219 DISCARD(PyObject_INIT(&ty
->ht_type
, metaty
));
224 void typeready(PyTypeObject
*ty
)
227 PyDict_SetItemString(ty
->tp_dict
, "__module__", modname
);
230 PyTypeObject
*inittype(PyTypeObject
*tyskel
, PyTypeObject
*meta
)
232 PyTypeObject
*ty
= newtype(meta
, tyskel
, 0);
233 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
238 /*----- Constants ---------------------------------------------------------*/
240 void setconstants(PyObject
*mod
, const struct nameval
*c
)
245 if (c
->value
> LONG_MAX
)
246 x
= PyLong_FromUnsignedLong(c
->value
);
248 x
= PyInt_FromLong(c
->value
);
249 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
254 /*----- Building method tables --------------------------------------------*/
256 DA_DECL(method_v
, PyMethodDef
);
257 static method_v global_pymethods
= DA_INIT
;
258 void addmethods(const PyMethodDef
*m
)
262 for (n
= 0; m
[n
].ml_name
; n
++);
263 DA_ENSURE(&global_pymethods
, n
);
264 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
266 DA_EXTEND(&global_pymethods
, n
);
269 PyMethodDef
*donemethods(void)
271 static const PyMethodDef mzero
= { 0 };
272 DA_PUSH(&global_pymethods
, mzero
);
273 return (DA(&global_pymethods
));
276 /*----- Exceptions --------------------------------------------------------*/
278 PyObject
*mkexc(PyObject
*mod
, PyObject
*base
,
279 const char *name
, PyMethodDef
*mm
)
281 PyObject
*nameobj
= 0;
287 if ((nameobj
= PyString_FromFormat("%s.%s",
288 PyModule_GetName(mod
),
290 (dict
= PyDict_New()) == 0 ||
291 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
296 while (mm
->ml_name
) {
297 if ((func
= PyCFunction_NewEx(mm
, 0, mod
)) == 0 ||
298 (meth
= PyMethod_New(func
, 0, exc
)) == 0 ||
299 PyDict_SetItemString(dict
, mm
->ml_name
, meth
))
301 Py_DECREF(func
); func
= 0;
302 Py_DECREF(meth
); meth
= 0;
320 /*----- Generic dictionary methods ----------------------------------------*/
322 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
324 typedef struct iter_pyobj
{
329 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
330 #define ITER_I(o) (((iter_pyobj *)(o))->i)
332 static void iter_pydealloc(PyObject
*me
)
333 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
335 static PyObject
*itemiter_pynext(PyObject
*me
)
337 PyObject
*k
= 0, *v
= 0, *rc
= 0;
339 if ((k
= PyIter_Next(ITER_I(me
))) != 0 &&
340 (v
= PyObject_GetItem(ITER_MAP(me
), k
)) != 0)
341 rc
= Py_BuildValue("(OO)", k
, v
);
342 Py_XDECREF(k
); Py_XDECREF(v
);
346 static PyTypeObject itemiter_pytype_skel
= {
347 PyObject_HEAD_INIT(0) 0, /* Header */
348 "ItemIter", /* @tp_name@ */
349 sizeof(iter_pyobj
), /* @tp_basicsize@ */
350 0, /* @tp_itemsize@ */
352 iter_pydealloc
, /* @tp_dealloc@ */
354 0, /* @tp_getattr@ */
355 0, /* @tp_setattr@ */
356 0, /* @tp_compare@ */
358 0, /* @tp_as_number@ */
359 0, /* @tp_as_sequence@ */
360 0, /* @tp_as_mapping@ */
364 0, /* @tp_getattro@ */
365 0, /* @tp_setattro@ */
366 0, /* @tp_as_buffer@ */
367 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
371 "Iterates over the items of a mapping.",
373 0, /* @tp_traverse@ */
375 0, /* @tp_richcompare@ */
376 0, /* @tp_weaklistoffset@ */
377 PyObject_SelfIter
, /* @tp_iter@ */
378 itemiter_pynext
, /* @tp_iternext@ */
379 0, /* @tp_methods@ */
380 0, /* @tp_members@ */
384 0, /* @tp_descr_get@ */
385 0, /* @tp_descr_set@ */
386 0, /* @tp_dictoffset@ */
388 PyType_GenericAlloc
, /* @tp_alloc@ */
389 abstract_pynew
, /* @tp_new@ */
394 static PyObject
*valiter_pynext(PyObject
*me
)
396 PyObject
*k
= 0, *rc
= 0;
398 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
399 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
404 static PyTypeObject valiter_pytype_skel
= {
405 PyObject_HEAD_INIT(0) 0, /* Header */
406 "ValueIter", /* @tp_name@ */
407 sizeof(iter_pyobj
), /* @tp_basicsize@ */
408 0, /* @tp_itemsize@ */
410 iter_pydealloc
, /* @tp_dealloc@ */
412 0, /* @tp_getattr@ */
413 0, /* @tp_setattr@ */
414 0, /* @tp_compare@ */
416 0, /* @tp_as_number@ */
417 0, /* @tp_as_sequence@ */
418 0, /* @tp_as_mapping@ */
422 0, /* @tp_getattro@ */
423 0, /* @tp_setattro@ */
424 0, /* @tp_as_buffer@ */
425 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
429 "Iterates over the items of a mapping.",
431 0, /* @tp_traverse@ */
433 0, /* @tp_richcompare@ */
434 0, /* @tp_weaklistoffset@ */
435 PyObject_SelfIter
, /* @tp_iter@ */
436 valiter_pynext
, /* @tp_iternext@ */
437 0, /* @tp_methods@ */
438 0, /* @tp_members@ */
442 0, /* @tp_descr_get@ */
443 0, /* @tp_descr_set@ */
444 0, /* @tp_dictoffset@ */
446 PyType_GenericAlloc
, /* @tp_alloc@ */
447 abstract_pynew
, /* @tp_new@ */
452 PySequenceMethods gmap_pysequence
= {
458 0, /* @sq_ass_item@ */
459 0, /* @sq_ass_slice@ */
460 PyMapping_HasKey
, /* @sq_contains@ */
461 0, /* @sq_inplace_concat@ */
462 0 /* @sq_inplace_repeat@ */
465 Py_ssize_t
gmap_pysize(PyObject
*me
)
467 PyObject
*i
= 0, *x
= 0;
471 if ((i
= PyObject_GetIter(me
)) == 0) goto done
;
472 while ((x
= PyIter_Next(i
)) != 0) { n
++; Py_DECREF(x
); x
= 0; }
473 if (PyErr_Occurred()) goto done
;
476 Py_XDECREF(i
); Py_XDECREF(x
);
480 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
483 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
484 return (getbool(PyMapping_HasKey(me
, k
)));
487 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
489 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
492 if (!PyArg_ParseTuple(arg
, ":keys") ||
493 (l
= PyList_New(0)) == 0 ||
494 (i
= PyObject_GetIter(me
)) == 0)
496 while ((k
= PyIter_Next(i
)) != 0)
497 { err
= PyList_Append(l
, k
); Py_DECREF(k
); if (err
) goto done
; }
498 if (PyErr_Occurred()) goto done
;
501 Py_XDECREF(l
); Py_XDECREF(i
);
505 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
507 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
510 if (!PyArg_ParseTuple(arg
, ":values") ||
511 (l
= PyList_New(0)) == 0 ||
512 (i
= PyObject_GetIter(me
)) == 0)
514 while ((k
= PyIter_Next(i
)) != 0) {
515 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
518 Py_DECREF(k
); Py_XDECREF(v
);
521 if (PyErr_Occurred()) goto done
;
524 Py_XDECREF(l
); Py_XDECREF(i
);
528 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
530 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
533 if (!PyArg_ParseTuple(arg
, ":items") ||
534 (l
= PyList_New(0)) == 0 ||
535 (i
= PyObject_GetIter(me
)) == 0)
537 while ((k
= PyIter_Next(i
)) != 0) {
539 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
540 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
543 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
546 if (PyErr_Occurred()) goto done
;
549 Py_XDECREF(l
); Py_XDECREF(i
);
553 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
555 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
556 return (PyObject_GetIter(me
));
559 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
564 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
565 (i
= PyObject_GetIter(me
)) == 0)
567 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
568 ii
->map
= me
; Py_INCREF(me
);
570 return ((PyObject
*)ii
);
573 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
578 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
579 (i
= PyObject_GetIter(me
)) == 0)
581 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
582 ii
->map
= me
; Py_INCREF(me
);
584 return ((PyObject
*)ii
);
587 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
589 PyObject
*i
= 0, *k
= 0, *rc
= 0;
591 if (!PyArg_ParseTuple(arg
, ":clear") ||
592 (i
= PyObject_GetIter(me
)) == 0)
594 while ((k
= PyIter_Next(i
)) != 0) {
595 PyObject_DelItem(me
, k
);
598 if (PyErr_Occurred()) goto end
;
599 rc
= me
; Py_INCREF(me
);
605 static char *def_kwlist
[] = { "key", "default", 0 };
607 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
609 PyObject
*k
, *def
= Py_None
, *v
;
611 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
613 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
618 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
620 PyObject
*k
, *def
= Py_None
, *v
;
622 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
623 def_kwlist
, &k
, &def
))
625 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
627 if (PyObject_SetItem(me
, k
, def
)) return (0);
631 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
633 PyObject
*k
, *def
= 0, *v
;
635 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
637 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
638 PyObject_DelItem(me
, k
);
645 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
647 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
650 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
651 (i
= PyObject_GetIter(map
)) == 0)
653 while ((k
= PyIter_Next(i
)) != 0) {
654 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
655 PyObject_SetItem(me
, k
, v
))
657 Py_DECREF(k
); Py_XDECREF(v
);
660 if (PyErr_Occurred()) goto end
;
661 rc
= me
; Py_INCREF(me
);
667 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
669 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
671 if (!PyArg_ParseTuple(arg
, ":popitem") ||
672 (i
= PyObject_GetIter(me
)))
674 if ((k
= PyIter_Next(i
)) == 0) {
675 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
678 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
679 PyObject_DelItem(me
, k
))
681 rc
= Py_BuildValue("(OO)", k
, v
);
683 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
687 PyMethodDef gmap_pymethods
[] = {
692 /*----- Initialization ----------------------------------------------------*/
694 void util_pyinit(void)
696 modname
= PyString_FromString("catacomb");
697 INITTYPE(itemiter
, root
);
698 INITTYPE(valiter
, root
);
701 void util_pyinsert(PyObject
*mod
)
703 INSERT("ItemIter", itemiter_pytype
);
704 INSERT("ValueIter", valiter_pytype
);
707 /*----- That's all, folks -------------------------------------------------*/