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
;
88 if (i
< 0) VALERR("must be nonnegative");
91 if ((t
= PyNumber_Long(o
)) == 0) goto end
;
92 *p
= PyLong_AsUnsignedLong(t
);
94 if (PyErr_Occurred()) goto end
;
102 int convu##n(PyObject *o, void *pp) \
107 if (!convulong(o, &u)) goto end; \
108 if (u > MASK##n) VALERR("out of range"); \
116 int convuint(PyObject
*o
, void *pp
)
121 if (!convulong(o
, &u
)) goto end
;
122 if (u
> UINT_MAX
) VALERR("out of range");
129 int convk64(PyObject
*o
, void *pp
)
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
;
140 hi
= PyInt_AsUnsignedLongMask(i
);
141 if ((t
= PyNumber_InPlaceRshift(i
, i32
)) == 0) goto end
;
143 if (PyObject_IsTrue(i
)) VALERR("out of range");
144 SET64(*(kludge64
*)pp
, hi
, lo
);
151 int convmpw(PyObject
*o
, void *pp
)
156 if (!convulong(o
, &u
)) goto end
;
157 if (u
> MPW_MAX
) VALERR("out of range");
164 int convszt(PyObject
*o
, void *pp
)
169 if (!convulong(o
, &u
)) goto end
;
170 if (u
> ~(size_t)0) VALERR("out of range");
177 int convbool(PyObject
*o
, void *pp
)
179 *(int *)pp
= PyObject_IsTrue(o
);
183 /*----- Type messing ------------------------------------------------------*/
185 static const PyTypeObject emptytype
= { 0 };
187 void *newtype(PyTypeObject
*metaty
,
188 const PyTypeObject
*skel
,
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; \
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
);
214 ty
->ht_type
.tp_name
= PyString_AS_STRING(ty
->ht_name
);
215 DISCARD(PyObject_INIT(&ty
->ht_type
, metaty
));
220 void typeready(PyTypeObject
*ty
)
223 PyDict_SetItemString(ty
->tp_dict
, "__module__", modname
);
226 PyTypeObject
*inittype(PyTypeObject
*tyskel
, PyTypeObject
*meta
)
228 PyTypeObject
*ty
= newtype(meta
, tyskel
, 0);
229 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
234 /*----- Constants ---------------------------------------------------------*/
236 void setconstants(PyObject
*mod
, const struct nameval
*c
)
241 if (c
->value
> LONG_MAX
)
242 x
= PyLong_FromUnsignedLong(c
->value
);
244 x
= PyInt_FromLong(c
->value
);
245 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
250 /*----- Building method tables --------------------------------------------*/
252 DA_DECL(method_v
, PyMethodDef
);
253 static method_v global_pymethods
= DA_INIT
;
254 void addmethods(const PyMethodDef
*m
)
258 for (n
= 0; m
[n
].ml_name
; n
++);
259 DA_ENSURE(&global_pymethods
, n
);
260 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
262 DA_EXTEND(&global_pymethods
, n
);
265 PyMethodDef
*donemethods(void)
267 static const PyMethodDef mzero
= { 0 };
268 DA_PUSH(&global_pymethods
, mzero
);
269 return (DA(&global_pymethods
));
272 /*----- Exceptions --------------------------------------------------------*/
274 PyObject
*mkexc(PyObject
*mod
, PyObject
*base
,
275 const char *name
, PyMethodDef
*mm
)
277 PyObject
*nameobj
= 0;
283 if ((nameobj
= PyString_FromFormat("%s.%s",
284 PyModule_GetName(mod
),
286 (dict
= PyDict_New()) == 0 ||
287 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
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
))
297 Py_DECREF(func
); func
= 0;
298 Py_DECREF(meth
); meth
= 0;
316 /*----- Generic dictionary methods ----------------------------------------*/
318 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
320 typedef struct iter_pyobj
{
325 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
326 #define ITER_I(o) (((iter_pyobj *)(o))->i)
328 static void iter_pydealloc(PyObject
*me
)
329 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
331 static PyObject
*itemiter_pynext(PyObject
*me
)
333 PyObject
*k
= 0, *v
= 0, *rc
= 0;
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
);
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@ */
348 iter_pydealloc
, /* @tp_dealloc@ */
350 0, /* @tp_getattr@ */
351 0, /* @tp_setattr@ */
352 0, /* @tp_compare@ */
354 0, /* @tp_as_number@ */
355 0, /* @tp_as_sequence@ */
356 0, /* @tp_as_mapping@ */
360 0, /* @tp_getattro@ */
361 0, /* @tp_setattro@ */
362 0, /* @tp_as_buffer@ */
363 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
367 "Iterates over the items of a mapping.",
369 0, /* @tp_traverse@ */
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@ */
380 0, /* @tp_descr_get@ */
381 0, /* @tp_descr_set@ */
382 0, /* @tp_dictoffset@ */
384 PyType_GenericAlloc
, /* @tp_alloc@ */
385 abstract_pynew
, /* @tp_new@ */
390 static PyObject
*valiter_pynext(PyObject
*me
)
392 PyObject
*k
= 0, *rc
= 0;
394 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
395 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
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@ */
406 iter_pydealloc
, /* @tp_dealloc@ */
408 0, /* @tp_getattr@ */
409 0, /* @tp_setattr@ */
410 0, /* @tp_compare@ */
412 0, /* @tp_as_number@ */
413 0, /* @tp_as_sequence@ */
414 0, /* @tp_as_mapping@ */
418 0, /* @tp_getattro@ */
419 0, /* @tp_setattro@ */
420 0, /* @tp_as_buffer@ */
421 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
425 "Iterates over the items of a mapping.",
427 0, /* @tp_traverse@ */
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@ */
438 0, /* @tp_descr_get@ */
439 0, /* @tp_descr_set@ */
440 0, /* @tp_dictoffset@ */
442 PyType_GenericAlloc
, /* @tp_alloc@ */
443 abstract_pynew
, /* @tp_new@ */
448 PySequenceMethods gmap_pysequence
= {
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@ */
461 Py_ssize_t
gmap_pysize(PyObject
*me
)
463 PyObject
*i
= 0, *x
= 0;
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
;
472 Py_XDECREF(i
); Py_XDECREF(x
);
476 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
479 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
480 return (getbool(PyMapping_HasKey(me
, k
)));
483 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
485 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
488 if (!PyArg_ParseTuple(arg
, ":keys") ||
489 (l
= PyList_New(0)) == 0 ||
490 (i
= PyObject_GetIter(me
)) == 0)
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
;
497 Py_XDECREF(l
); Py_XDECREF(i
);
501 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
503 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
506 if (!PyArg_ParseTuple(arg
, ":values") ||
507 (l
= PyList_New(0)) == 0 ||
508 (i
= PyObject_GetIter(me
)) == 0)
510 while ((k
= PyIter_Next(i
)) != 0) {
511 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
514 Py_DECREF(k
); Py_XDECREF(v
);
517 if (PyErr_Occurred()) goto done
;
520 Py_XDECREF(l
); Py_XDECREF(i
);
524 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
526 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
529 if (!PyArg_ParseTuple(arg
, ":items") ||
530 (l
= PyList_New(0)) == 0 ||
531 (i
= PyObject_GetIter(me
)) == 0)
533 while ((k
= PyIter_Next(i
)) != 0) {
535 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
536 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
539 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
542 if (PyErr_Occurred()) goto done
;
545 Py_XDECREF(l
); Py_XDECREF(i
);
549 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
551 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
552 return (PyObject_GetIter(me
));
555 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
560 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
561 (i
= PyObject_GetIter(me
)) == 0)
563 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
564 ii
->map
= me
; Py_INCREF(me
);
566 return ((PyObject
*)ii
);
569 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
574 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
575 (i
= PyObject_GetIter(me
)) == 0)
577 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
578 ii
->map
= me
; Py_INCREF(me
);
580 return ((PyObject
*)ii
);
583 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
585 PyObject
*i
= 0, *k
= 0, *rc
= 0;
587 if (!PyArg_ParseTuple(arg
, ":clear") ||
588 (i
= PyObject_GetIter(me
)) == 0)
590 while ((k
= PyIter_Next(i
)) != 0) {
591 PyObject_DelItem(me
, k
);
594 if (PyErr_Occurred()) goto end
;
595 rc
= me
; Py_INCREF(me
);
601 static char *def_kwlist
[] = { "key", "default", 0 };
603 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
605 PyObject
*k
, *def
= Py_None
, *v
;
607 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
609 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
614 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
616 PyObject
*k
, *def
= Py_None
, *v
;
618 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
619 def_kwlist
, &k
, &def
))
621 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
623 if (PyObject_SetItem(me
, k
, def
)) return (0);
627 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
629 PyObject
*k
, *def
= 0, *v
;
631 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
633 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
634 PyObject_DelItem(me
, k
);
641 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
643 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
646 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
647 (i
= PyObject_GetIter(map
)) == 0)
649 while ((k
= PyIter_Next(i
)) != 0) {
650 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
651 PyObject_SetItem(me
, k
, v
))
653 Py_DECREF(k
); Py_XDECREF(v
);
656 if (PyErr_Occurred()) goto end
;
657 rc
= me
; Py_INCREF(me
);
663 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
665 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
667 if (!PyArg_ParseTuple(arg
, ":popitem") ||
668 (i
= PyObject_GetIter(me
)))
670 if ((k
= PyIter_Next(i
)) == 0) {
671 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
674 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
675 PyObject_DelItem(me
, k
))
677 rc
= Py_BuildValue("(OO)", k
, v
);
679 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
683 PyMethodDef gmap_pymethods
[] = {
688 /*----- Initialization ----------------------------------------------------*/
690 void util_pyinit(void)
692 modname
= PyString_FromString("catacomb");
693 INITTYPE(itemiter
, root
);
694 INITTYPE(valiter
, root
);
697 void util_pyinsert(PyObject
*mod
)
699 INSERT("ItemIter", itemiter_pytype
);
700 INSERT("ValueIter", valiter_pytype
);
703 /*----- That's all, folks -------------------------------------------------*/