[pyke] / util.c

/* -*-c-*-
 *
 * Miscellaneous utilities (not Catacomb-specific)
 *
 * (c) 2005 Straylight/Edgeware
 */

/*----- Licensing notice --------------------------------------------------*
 *
 * This file is part of the Python interface to Catacomb.
 *
 * Catacomb/Python is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Catacomb/Python is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Catacomb/Python; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*----- Header files ------------------------------------------------------*/

#include "catacomb-python.h"

/*----- Conversions -------------------------------------------------------*/

PyObject *getulong(unsigned long w)
{
  if (w <= LONG_MAX)
    return (PyInt_FromLong(w));
  else
    return (PyLong_FromUnsignedLong(w));
}

PyObject *getbool(int b)
{
  if (b) RETURN_TRUE;
  else RETURN_FALSE;
}

PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
{
  PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
  return (0);
}

int convulong(PyObject *o, void *pp)
{
  long i;
  unsigned long *p = pp;
  PyObject *t;

  if (PyInt_Check(o)) {
    i = PyInt_AS_LONG(o);
    if (i < 0) VALERR("must be nonnegative");
    *p = i;
  } else {
    if ((t = PyNumber_Long(o)) == 0) goto end;
    *p = PyLong_AsUnsignedLong(t);
    Py_DECREF(t);
    if (PyErr_Occurred()) goto end;
  }
  return (1);
end:
  return (0);
}

#define CONVU_(n)							\
  int convu##n(PyObject *o, void *pp)					\
  {									\
    unsigned long u;							\
    uint##n *p = pp;							\
									\
    if (!convulong(o, &u)) goto end;					\
    if (u > MASK##n) VALERR("out of range");				\
    *p = u;								\
    return (1);								\
  end:									\
    return (0);								\
  }
DOUINTSZ(CONVU_)

int convuint(PyObject *o, void *pp)
{
  unsigned long u;
  unsigned *p = pp;

  if (!convulong(o, &u)) goto end;
  if (u > UINT_MAX) VALERR("out of range");
  *p = u;
  return (1);
end:
  return (0);
}

int convmpw(PyObject *o, void *pp)
{
  unsigned long u;
  unsigned *p = pp;

  if (!convulong(o, &u)) goto end;
  if (u > MPW_MAX) VALERR("out of range");
  *p = u;
  return (1);
end:
  return (0);
}

int convszt(PyObject *o, void *pp)
{
  unsigned long u;
  size_t *p = pp;

  if (!convulong(o, &u)) goto end;
  if (u > ~(size_t)0) VALERR("out of range");
  *p = u;
  return (1);
end:
  return (0);
}

int convbool(PyObject *o, void *pp)
{
  *(int *)pp = PyObject_IsTrue(o);
  return (1);
}

/*----- Type messing ------------------------------------------------------*/

static const PyTypeObject emptytype = { 0 };

void *newtype(PyTypeObject *metaty,
	      const PyTypeObject *skel,
	      const char *name)
{
  PyHeapTypeObject *ty =
    (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
  if (!skel) skel = &emptytype;
  memcpy(ty, skel, sizeof(*skel));
  if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
#define COPY(blah) do {							\
    if (ty->ht_type.tp_as_##blah) {					\
      memcpy(&ty->as_##blah,						\
	     ty->ht_type.tp_as_##blah,					\
	     sizeof(ty->as_##blah));					\
      ty->ht_type.tp_as_##blah = &ty->as_##blah;			\
    }									\
  } while (0)
  COPY(number);
  COPY(sequence);
  COPY(mapping);
  COPY(buffer);
#undef COPY
  if (name)
    ty->ht_name = PyString_FromString(name);
  else if (ty->ht_type.tp_name)
    ty->ht_name = PyString_FromString(ty->ht_type.tp_name);
  if (ty->ht_name)
    ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
  DISCARD(PyObject_INIT(&ty->ht_type, metaty));
  Py_INCREF(metaty);
  return (ty);
}

PyTypeObject *inittype(PyTypeObject *tyskel)
{
  static PyObject *modname = 0;
  PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
  if (!modname) modname = PyString_FromString("catacomb");
  ty->tp_flags |= Py_TPFLAGS_HEAPTYPE;
  PyType_Ready(ty);
  PyDict_SetItemString(ty->tp_dict, "__module__", modname);
  return (ty);
}

/*----- Constants ---------------------------------------------------------*/

void setconstants(PyObject *mod, const struct nameval *c)
{
  PyObject *x;

  while (c->name) {
    if (c->value > LONG_MAX)
      x = PyLong_FromUnsignedLong(c->value);
    else
      x = PyInt_FromLong(c->value);
    PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x);
    c++;
  }
}

/*----- Building method tables --------------------------------------------*/

DA_DECL(method_v, PyMethodDef);
static method_v global_pymethods = DA_INIT;
void addmethods(const PyMethodDef *m)
{
  size_t n;

  for (n = 0; m[n].ml_name; n++);
  DA_ENSURE(&global_pymethods, n);
  memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
	 m, n * sizeof(*m));
  DA_EXTEND(&global_pymethods, n);
}

PyMethodDef *donemethods(void)
{
  static const PyMethodDef mzero = { 0 };
  DA_PUSH(&global_pymethods, mzero);
  return (DA(&global_pymethods));
}

/*----- Exceptions --------------------------------------------------------*/

PyObject * mkexc(PyObject *mod, PyObject *base,
		 const char *name, PyMethodDef *mm)
{
  PyObject *nameobj = 0;
  PyObject *dict = 0;
  PyObject *exc = 0;
  PyObject *func = 0;
  PyObject *meth = 0;

  if ((nameobj = PyString_FromFormat("%s.%s",
				     PyModule_GetName(mod),
				     name)) == 0 ||
      (dict = PyDict_New()) == 0 ||
      (exc = PyErr_NewException(PyString_AS_STRING(nameobj),
				base, dict)) == 0)
    goto fail;

  if (mm) {
    while (mm->ml_name) {
      if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 ||
	  (meth = PyMethod_New(func, 0, exc)) == 0 ||
	  PyDict_SetItemString(dict, mm->ml_name, meth))
	goto fail;
      Py_DECREF(func); func = 0;
      Py_DECREF(meth); meth = 0;
      mm++;
    }
  }

done:
  Py_XDECREF(nameobj);
  Py_XDECREF(dict);
  return (exc);

fail:
  Py_XDECREF(exc);
  Py_XDECREF(func);
  Py_XDECREF(meth);
  exc = 0;
  goto done;
}

/*----- Generic dictionary methods ----------------------------------------*/

static PyTypeObject *itemiter_pytype, *valiter_pytype;

typedef struct iter_pyobj {
  PyObject_HEAD
  PyObject *map;
  PyObject *i;
} iter_pyobj;
#define ITER_MAP(o) (((iter_pyobj *)(o))->map)
#define ITER_I(o) (((iter_pyobj *)(o))->i)

static void iter_pydealloc(PyObject *me)
  { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }

static PyObject *itemiter_pynext(PyObject *me)
{
  PyObject *k = 0, *v = 0, *rc = 0;

  if ((k = PyIter_Next(ITER_I(me))) != 0 &&
      (v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
    rc = Py_BuildValue("(OO)", k, v);
  Py_XDECREF(k); Py_XDECREF(v);
  return (rc);
}

static PyTypeObject itemiter_pytype_skel = {
  PyObject_HEAD_INIT(0) 0,		/* Header */
  "ItemIter",				/* @tp_name@ */
  sizeof(iter_pyobj),			/* @tp_basicsize@ */
  0,					/* @tp_itemsize@ */

  iter_pydealloc,			/* @tp_dealloc@ */
  0,					/* @tp_print@ */
  0,					/* @tp_getattr@ */
  0,					/* @tp_setattr@ */
  0,					/* @tp_compare@ */
  0,					/* @tp_repr@ */
  0,					/* @tp_as_number@ */
  0,					/* @tp_as_sequence@ */
  0,					/* @tp_as_mapping@ */
  0,					/* @tp_hash@ */
  0,					/* @tp_call@ */
  0,					/* @tp_str@ */
  0,					/* @tp_getattro@ */
  0,					/* @tp_setattro@ */
  0,					/* @tp_as_buffer@ */
  Py_TPFLAGS_DEFAULT |			/* @tp_flags@ */
    Py_TPFLAGS_BASETYPE,

  /* @tp_doc@ */
"Iterates over the items of a mapping.",

  0,					/* @tp_traverse@ */
  0,					/* @tp_clear@ */
  0,					/* @tp_richcompare@ */
  0,					/* @tp_weaklistoffset@ */
  PyObject_SelfIter,			/* @tp_iter@ */
  itemiter_pynext,			/* @tp_iternext@ */
  0,					/* @tp_methods@ */
  0,					/* @tp_members@ */
  0,					/* @tp_getset@ */
  0,					/* @tp_base@ */
  0,					/* @tp_dict@ */
  0,					/* @tp_descr_get@ */
  0,					/* @tp_descr_set@ */
  0,					/* @tp_dictoffset@ */
  0,					/* @tp_init@ */
  PyType_GenericAlloc,			/* @tp_alloc@ */
  abstract_pynew,			/* @tp_new@ */
  0,					/* @tp_free@ */
  0					/* @tp_is_gc@ */
};

static PyObject *valiter_pynext(PyObject *me)
{
  PyObject *k = 0, *rc = 0;

  if ((k = PyIter_Next(ITER_I(me))) != 0)
    rc = PyObject_GetItem(ITER_MAP(me), k);
  Py_XDECREF(k);
  return (rc);
}

static PyTypeObject valiter_pytype_skel = {
  PyObject_HEAD_INIT(0) 0,		/* Header */
  "ValueIter",				/* @tp_name@ */
  sizeof(iter_pyobj),			/* @tp_basicsize@ */
  0,					/* @tp_itemsize@ */

  iter_pydealloc,			/* @tp_dealloc@ */
  0,					/* @tp_print@ */
  0,					/* @tp_getattr@ */
  0,					/* @tp_setattr@ */
  0,					/* @tp_compare@ */
  0,					/* @tp_repr@ */
  0,					/* @tp_as_number@ */
  0,					/* @tp_as_sequence@ */
  0,					/* @tp_as_mapping@ */
  0,					/* @tp_hash@ */
  0,					/* @tp_call@ */
  0,					/* @tp_str@ */
  0,					/* @tp_getattro@ */
  0,					/* @tp_setattro@ */
  0,					/* @tp_as_buffer@ */
  Py_TPFLAGS_DEFAULT |			/* @tp_flags@ */
    Py_TPFLAGS_BASETYPE,

  /* @tp_doc@ */
"Iterates over the items of a mapping.",

  0,					/* @tp_traverse@ */
  0,					/* @tp_clear@ */
  0,					/* @tp_richcompare@ */
  0,					/* @tp_weaklistoffset@ */
  PyObject_SelfIter,			/* @tp_iter@ */
  valiter_pynext,			/* @tp_iternext@ */
  0,					/* @tp_methods@ */
  0,					/* @tp_members@ */
  0,					/* @tp_getset@ */
  0,					/* @tp_base@ */
  0,					/* @tp_dict@ */
  0,					/* @tp_descr_get@ */
  0,					/* @tp_descr_set@ */
  0,					/* @tp_dictoffset@ */
  0,					/* @tp_init@ */
  PyType_GenericAlloc,			/* @tp_alloc@ */
  abstract_pynew,			/* @tp_new@ */
  0,					/* @tp_free@ */
  0					/* @tp_is_gc@ */
};

PySequenceMethods gmap_pysequence = {
  0,					/* @sq_length@ */
  0,					/* @sq_concat@ */
  0,					/* @sq_repeat@ */
  0,					/* @sq_item@ */
  0,					/* @sq_slice@ */
  0,					/* @sq_ass_item@ */
  0,					/* @sq_ass_slice@ */
  PyMapping_HasKey,			/* @sq_contains@ */
  0,					/* @sq_inplace_concat@ */
  0					/* @sq_inplace_repeat@ */
};

int gmap_pysize(PyObject *me)
{
  PyObject *i = 0, *x = 0;
  int rc = -1;
  int n = 0;

  if ((i = PyObject_GetIter(me)) == 0) goto done;
  while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
  if (PyErr_Occurred()) goto done;
  rc = n;
done:
  Py_XDECREF(i); Py_XDECREF(x);
  return (rc);
}

PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg)
{
  PyObject *k;
  if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
  return (getbool(PyMapping_HasKey(me, k)));
}

PyObject *gmapmeth_keys(PyObject *me, PyObject *arg)
{
  PyObject *l = 0, *i = 0, *k, *rc = 0;
  int err;

  if (!PyArg_ParseTuple(arg, ":keys") ||
      (l = PyList_New(0)) == 0 ||
      (i = PyObject_GetIter(me)) == 0)
    goto done;
  while ((k = PyIter_Next(i)) != 0)
    { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
  if (PyErr_Occurred()) goto done;
  rc = l; l = 0;
done:
  Py_XDECREF(l); Py_XDECREF(i);
  return (rc);
}

PyObject *gmapmeth_values(PyObject *me, PyObject *arg)
{
  PyObject *l = 0, *i = 0, *k, *v, *rc = 0;
  int err = 0;

  if (!PyArg_ParseTuple(arg, ":values") ||
      (l = PyList_New(0)) == 0 ||
      (i = PyObject_GetIter(me)) == 0)
    goto done;
  while ((k = PyIter_Next(i)) != 0) {
    if ((v = PyObject_GetItem(me, k)) == 0 ||
	PyList_Append(l, v))
      err = -1;
    Py_DECREF(k); Py_XDECREF(v);
    if (err) goto done;
  }
  if (PyErr_Occurred()) goto done;
  rc = l; l = 0;
done:
  Py_XDECREF(l); Py_XDECREF(i);
  return (rc);
}

PyObject *gmapmeth_items(PyObject *me, PyObject *arg)
{
  PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0;
  int err = 0;

  if (!PyArg_ParseTuple(arg, ":items") ||
      (l = PyList_New(0)) == 0 ||
      (i = PyObject_GetIter(me)) == 0)
    goto done;
  while ((k = PyIter_Next(i)) != 0) {
    z = 0;
    if ((v = PyObject_GetItem(me, k)) == 0 ||
	(z = Py_BuildValue("(OO)", k, v)) == 0 ||
	PyList_Append(l, z))
      err = -1;
    Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
    if (err) goto done;
  }
  if (PyErr_Occurred()) goto done;
  rc = l; l = 0;
done:
  Py_XDECREF(l); Py_XDECREF(i);
  return (rc);
}

PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg)
{
  if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
  return (PyObject_GetIter(me));
}

PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg)
{
  PyObject *i;
  iter_pyobj *ii;

  if (!PyArg_ParseTuple(arg, ":itervalues") ||
      (i = PyObject_GetIter(me)) == 0)
    return (0);
  ii = PyObject_NEW(iter_pyobj, valiter_pytype);
  ii->map = me; Py_INCREF(me);
  ii->i = i;
  return ((PyObject *)ii);
}

PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg)
{
  PyObject *i;
  iter_pyobj *ii;

  if (!PyArg_ParseTuple(arg, ":iteritems") ||
      (i = PyObject_GetIter(me)) == 0)
    return (0);
  ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
  ii->map = me; Py_INCREF(me);
  ii->i = i;
  return ((PyObject *)ii);
}

PyObject *gmapmeth_clear(PyObject *me, PyObject *arg)
{
  PyObject *i = 0, *k = 0, *rc = 0;

  if (!PyArg_ParseTuple(arg, ":clear") ||
      (i = PyObject_GetIter(me)) == 0)
    goto end;
  while ((k = PyIter_Next(i)) != 0) {
    PyObject_DelItem(me, k);
    Py_DECREF(k);
  }
  if (PyErr_Occurred()) goto end;
  rc = me; Py_INCREF(me);
end:
  Py_XDECREF(i);
  return (rc);
}

static char *def_kwlist[] = { "key", "default", 0 };

PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw)
{
  PyObject *k, *def = Py_None, *v;

  if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
    return (0);
  if ((v = PyObject_GetItem(me, k)) != 0) return (v);
  PyErr_Clear();
  RETURN_OBJ(def);
}

PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw)
{
  PyObject *k, *def = Py_None, *v;

  if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
				   def_kwlist, &k, &def))
    return (0);
  if ((v = PyObject_GetItem(me, k)) != 0) return (v);
  PyErr_Clear();
  if (PyObject_SetItem(me, k, def)) return (0);
  RETURN_OBJ(def);
}

PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw)
{
  PyObject *k, *def = 0, *v;

  if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
    return (0);
  if ((v = PyObject_GetItem(me, k)) != 0) {
    PyObject_DelItem(me, k);
    return (v);
  }
  PyErr_Clear();
  RETURN_OBJ(def);
}

PyObject *gmapmeth_update(PyObject *me, PyObject *arg)
{
  PyObject *map, *i = 0, *k, *v, *rc = 0;
  int err = 0;

  if (!PyArg_ParseTuple(arg, "O:update", &map) ||
      (i = PyObject_GetIter(map)) == 0)
    goto end;
  while ((k = PyIter_Next(i)) != 0) {
    if ((v = PyObject_GetItem(map, k)) == 0 ||
	PyObject_SetItem(me, k, v))
      err = -1;
    Py_DECREF(k); Py_XDECREF(v);
    if (err) goto end;
  }
  if (PyErr_Occurred()) goto end;
  rc = me; Py_INCREF(me);
end:
  Py_XDECREF(i);
  return (rc);
}

PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg)
{
  PyObject *i = 0, *k = 0, *v = 0, *rc = 0;

  if (!PyArg_ParseTuple(arg, ":popitem") ||
      (i = PyObject_GetIter(me)))
    goto end;
  if ((k = PyIter_Next(i)) == 0) {
    if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
    goto end;
  }
  if ((v = PyObject_GetItem(me, k)) == 0 ||
      PyObject_DelItem(me, k))
    goto end;
  rc = Py_BuildValue("(OO)", k, v);
end:
  Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
  return (rc);
}

PyMethodDef gmap_pymethods[] = {
  GMAP_METHODS
  { 0 }
};

/*----- Initialization ----------------------------------------------------*/

void util_pyinit(void)
{
  INITTYPE(itemiter, root);
  INITTYPE(valiter, root);
}

void util_pyinsert(PyObject *mod)
{
  INSERT("ItemIter", itemiter_pytype);
  INSERT("ValueIter", valiter_pytype);
}

/*----- That's all, folks -------------------------------------------------*/
Commit	Line	Data
68ec53f3 MW	1	/* --c--
68ec53f3 MW	2	*
68ec53f3 MW	3	* Miscellaneous utilities (not Catacomb-specific)
	4	*
	5	* (c) 2005 Straylight/Edgeware
	6	*/
	7
0b1eafbf	8	/----- Licensing notice --------------------------------------------------
68ec53f3 MW	9	*
	10	* This file is part of the Python interface to Catacomb.
	11	*
	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.
0b1eafbf	16	*
68ec53f3 MW	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.
0b1eafbf	21	*
68ec53f3 MW	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.
	25	*/
	26
	27	/----- Header files ------------------------------------------------------/
	28
	29	#include "catacomb-python.h"
	30
	31	/----- Conversions -------------------------------------------------------/
	32
1e082a86 MW	33	PyObject *getulong(unsigned long w)
1e082a86 MW	34	{
4f3d0934	35	if (w <= LONG_MAX)
1e082a86 MW	36	return (PyInt_FromLong(w));
	37	else
	38	return (PyLong_FromUnsignedLong(w));
	39	}
68ec53f3 MW	40
	41	PyObject *getbool(int b)
	42	{
	43	if (b) RETURN_TRUE;
	44	else RETURN_FALSE;
	45	}
	46
	47	PyObject abstract_pynew(PyTypeObject ty, PyObject arg, PyObject kw)
	48	{
	49	PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
	50	return (0);
	51	}
	52
	53	int convulong(PyObject o, void pp)
	54	{
	55	long i;
	56	unsigned long *p = pp;
	57	PyObject *t;
	58
	59	if (PyInt_Check(o)) {
	60	i = PyInt_AS_LONG(o);
799dffb2	61	if (i < 0) VALERR("must be nonnegative");
68ec53f3 MW	62	*p = i;
	63	} else {
	64	if ((t = PyNumber_Long(o)) == 0) goto end;
	65	*p = PyLong_AsUnsignedLong(t);
	66	Py_DECREF(t);
	67	if (PyErr_Occurred()) goto end;
	68	}
	69	return (1);
	70	end:
	71	return (0);
	72	}
	73
	74	#define CONVU_(n) \
	75	int convu##n(PyObject o, void pp) \
	76	{ \
	77	unsigned long u; \
	78	uint##n *p = pp; \
	79	\
	80	if (!convulong(o, &u)) goto end; \
799dffb2	81	if (u > MASK##n) VALERR("out of range"); \
68ec53f3 MW	82	*p = u; \
	83	return (1); \
	84	end: \
	85	return (0); \
	86	}
	87	DOUINTSZ(CONVU_)
	88
	89	int convuint(PyObject o, void pp)
	90	{
	91	unsigned long u;
	92	unsigned *p = pp;
	93
	94	if (!convulong(o, &u)) goto end;
799dffb2	95	if (u > UINT_MAX) VALERR("out of range");
68ec53f3 MW	96	*p = u;
	97	return (1);
	98	end:
	99	return (0);
	100	}
	101
	102	int convmpw(PyObject o, void pp)
	103	{
	104	unsigned long u;
	105	unsigned *p = pp;
	106
	107	if (!convulong(o, &u)) goto end;
799dffb2	108	if (u > MPW_MAX) VALERR("out of range");
68ec53f3 MW	109	*p = u;
	110	return (1);
	111	end:
	112	return (0);
	113	}
	114
	115	int convszt(PyObject o, void pp)
	116	{
	117	unsigned long u;
	118	size_t *p = pp;
	119
	120	if (!convulong(o, &u)) goto end;
799dffb2	121	if (u > ~(size_t)0) VALERR("out of range");
68ec53f3 MW	122	*p = u;
	123	return (1);
	124	end:
	125	return (0);
	126	}
	127
	128	int convbool(PyObject o, void pp)
	129	{
	130	(int )pp = PyObject_IsTrue(o);
	131	return (1);
	132	}
	133
	134	/----- Type messing ------------------------------------------------------/
	135
	136	static const PyTypeObject emptytype = { 0 };
	137
	138	void newtype(PyTypeObject metaty,
	139	const PyTypeObject *skel,
	140	const char *name)
	141	{
	142	PyHeapTypeObject *ty =
	143	(PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
	144	if (!skel) skel = &emptytype;
	145	memcpy(ty, skel, sizeof(*skel));
d4a9e7e7	146	if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
68ec53f3	147	#define COPY(blah) do { \
d4a9e7e7	148	if (ty->ht_type.tp_as_##blah) { \
68ec53f3	149	memcpy(&ty->as_##blah, \
d4a9e7e7	150	ty->ht_type.tp_as_##blah, \
68ec53f3	151	sizeof(ty->as_##blah)); \
d4a9e7e7	152	ty->ht_type.tp_as_##blah = &ty->as_##blah; \
68ec53f3 MW	153	} \
	154	} while (0)
	155	COPY(number);
	156	COPY(sequence);
	157	COPY(mapping);
	158	COPY(buffer);
	159	#undef COPY
	160	if (name)
d4a9e7e7 MW	161	ty->ht_name = PyString_FromString(name);
	162	else if (ty->ht_type.tp_name)
	163	ty->ht_name = PyString_FromString(ty->ht_type.tp_name);
	164	if (ty->ht_name)
	165	ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
f60b520f	166	DISCARD(PyObject_INIT(&ty->ht_type, metaty));
68ec53f3 MW	167	Py_INCREF(metaty);
	168	return (ty);
	169	}
	170
	171	PyTypeObject inittype(PyTypeObject tyskel)
	172	{
35ac67cc	173	static PyObject *modname = 0;
68ec53f3	174	PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
35ac67cc	175	if (!modname) modname = PyString_FromString("catacomb");
68ec53f3 MW	176	ty->tp_flags \|= Py_TPFLAGS_HEAPTYPE;
68ec53f3 MW	177	PyType_Ready(ty);
35ac67cc	178	PyDict_SetItemString(ty->tp_dict, "__module__", modname);
68ec53f3 MW	179	return (ty);
	180	}
	181
	182	/----- Constants ---------------------------------------------------------/
	183
	184	void setconstants(PyObject mod, const struct nameval c)
	185	{
	186	PyObject *x;
	187
	188	while (c->name) {
	189	if (c->value > LONG_MAX)
	190	x = PyLong_FromUnsignedLong(c->value);
	191	else
	192	x = PyInt_FromLong(c->value);
	193	PyModule_AddObject(mod, (/unconst/ char *)c->name, x);
	194	c++;
	195	}
	196	}
	197
	198	/----- Building method tables --------------------------------------------/
	199
	200	DA_DECL(method_v, PyMethodDef);
	201	static method_v global_pymethods = DA_INIT;
	202	void addmethods(const PyMethodDef *m)
	203	{
	204	size_t n;
	205
	206	for (n = 0; m[n].ml_name; n++);
	207	DA_ENSURE(&global_pymethods, n);
	208	memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
	209	m, n * sizeof(*m));
	210	DA_EXTEND(&global_pymethods, n);
	211	}
	212
	213	PyMethodDef *donemethods(void)
	214	{
	215	static const PyMethodDef mzero = { 0 };
	216	DA_PUSH(&global_pymethods, mzero);
	217	return (DA(&global_pymethods));
	218	}
	219
	220	/----- Exceptions --------------------------------------------------------/
	221
	222	PyObject * mkexc(PyObject mod, PyObject base,
	223	const char name, PyMethodDef mm)
	224	{
	225	PyObject *nameobj = 0;
	226	PyObject *dict = 0;
	227	PyObject *exc = 0;
	228	PyObject *func = 0;
	229	PyObject *meth = 0;
	230
	231	if ((nameobj = PyString_FromFormat("%s.%s",
	232	PyModule_GetName(mod),
	233	name)) == 0 \|\|
	234	(dict = PyDict_New()) == 0 \|\|
	235	(exc = PyErr_NewException(PyString_AS_STRING(nameobj),
	236	base, dict)) == 0)
	237	goto fail;
	238
	239	if (mm) {
	240	while (mm->ml_name) {
	241	if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 \|\|
	242	(meth = PyMethod_New(func, 0, exc)) == 0 \|\|
243	PyDict_SetItemString(dict, mm->ml_name, meth))
244	goto fail;
245	Py_DECREF(func); func = 0;
246	Py_DECREF(meth); meth = 0;
247	mm++;
248	}
249	}
250
251	done:
252	Py_XDECREF(nameobj);
253	Py_XDECREF(dict);
254	return (exc);
255
256	fail:
257	Py_XDECREF(exc);
258	Py_XDECREF(func);
259	Py_XDECREF(meth);
260	exc = 0;
261	goto done;
262	}
263
264	/----- Generic dictionary methods ----------------------------------------/
265
266	static PyTypeObject itemiter_pytype, valiter_pytype;
267
268	typedef struct iter_pyobj {
269	PyObject_HEAD
270	PyObject *map;
271	PyObject *i;
272	} iter_pyobj;
273	#define ITER_MAP(o) (((iter_pyobj *)(o))->map)
274	#define ITER_I(o) (((iter_pyobj *)(o))->i)
275
276	static void iter_pydealloc(PyObject *me)
277	{ Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
278
279	static PyObject itemiter_pynext(PyObject me)
280	{
281	PyObject k = 0, v = 0, *rc = 0;
0b1eafbf	282
68ec53f3 MW	283	if ((k = PyIter_Next(ITER_I(me))) != 0 &&
	284	(v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
	285	rc = Py_BuildValue("(OO)", k, v);
	286	Py_XDECREF(k); Py_XDECREF(v);
	287	return (rc);
	288	}
	289
	290	static PyTypeObject itemiter_pytype_skel = {
	291	PyObject_HEAD_INIT(0) 0, /* Header */
	292	"ItemIter", /* @tp_name@ */
	293	sizeof(iter_pyobj), /* @tp_basicsize@ */
	294	0, /* @tp_itemsize@ */
	295
	296	iter_pydealloc, /* @tp_dealloc@ */
	297	0, /* @tp_print@ */
	298	0, /* @tp_getattr@ */
	299	0, /* @tp_setattr@ */
	300	0, /* @tp_compare@ */
	301	0, /* @tp_repr@ */
	302	0, /* @tp_as_number@ */
	303	0, /* @tp_as_sequence@ */
	304	0, /* @tp_as_mapping@ */
	305	0, /* @tp_hash@ */
	306	0, /* @tp_call@ */
	307	0, /* @tp_str@ */
	308	0, /* @tp_getattro@ */
	309	0, /* @tp_setattro@ */
	310	0, /* @tp_as_buffer@ */
	311	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	312	Py_TPFLAGS_BASETYPE,
	313
	314	/* @tp_doc@ */
	315	"Iterates over the items of a mapping.",
	316
	317	0, /* @tp_traverse@ */
	318	0, /* @tp_clear@ */
	319	0, /* @tp_richcompare@ */
	320	0, /* @tp_weaklistoffset@ */
	321	PyObject_SelfIter, /* @tp_iter@ */
	322	itemiter_pynext, /* @tp_iternext@ */
	323	0, /* @tp_methods@ */
	324	0, /* @tp_members@ */
	325	0, /* @tp_getset@ */
	326	0, /* @tp_base@ */
	327	0, /* @tp_dict@ */
	328	0, /* @tp_descr_get@ */
	329	0, /* @tp_descr_set@ */
	330	0, /* @tp_dictoffset@ */
	331	0, /* @tp_init@ */
	332	PyType_GenericAlloc, /* @tp_alloc@ */
	333	abstract_pynew, /* @tp_new@ */
	334	0, /* @tp_free@ */
	335	0 /* @tp_is_gc@ */
	336	};
	337
	338	static PyObject valiter_pynext(PyObject me)
	339	{
	340	PyObject k = 0, rc = 0;
0b1eafbf	341
68ec53f3 MW	342	if ((k = PyIter_Next(ITER_I(me))) != 0)
	343	rc = PyObject_GetItem(ITER_MAP(me), k);
	344	Py_XDECREF(k);
	345	return (rc);
	346	}
	347
	348	static PyTypeObject valiter_pytype_skel = {
	349	PyObject_HEAD_INIT(0) 0, /* Header */
	350	"ValueIter", /* @tp_name@ */
	351	sizeof(iter_pyobj), /* @tp_basicsize@ */
	352	0, /* @tp_itemsize@ */
	353
	354	iter_pydealloc, /* @tp_dealloc@ */
	355	0, /* @tp_print@ */
	356	0, /* @tp_getattr@ */
	357	0, /* @tp_setattr@ */
	358	0, /* @tp_compare@ */
	359	0, /* @tp_repr@ */
	360	0, /* @tp_as_number@ */
	361	0, /* @tp_as_sequence@ */
	362	0, /* @tp_as_mapping@ */
	363	0, /* @tp_hash@ */
	364	0, /* @tp_call@ */
	365	0, /* @tp_str@ */
	366	0, /* @tp_getattro@ */
	367	0, /* @tp_setattro@ */
	368	0, /* @tp_as_buffer@ */
	369	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	370	Py_TPFLAGS_BASETYPE,
	371
	372	/* @tp_doc@ */
	373	"Iterates over the items of a mapping.",
	374
	375	0, /* @tp_traverse@ */
	376	0, /* @tp_clear@ */
	377	0, /* @tp_richcompare@ */
	378	0, /* @tp_weaklistoffset@ */
	379	PyObject_SelfIter, /* @tp_iter@ */
	380	valiter_pynext, /* @tp_iternext@ */
	381	0, /* @tp_methods@ */
	382	0, /* @tp_members@ */
	383	0, /* @tp_getset@ */
	384	0, /* @tp_base@ */
	385	0, /* @tp_dict@ */
	386	0, /* @tp_descr_get@ */
	387	0, /* @tp_descr_set@ */
	388	0, /* @tp_dictoffset@ */
	389	0, /* @tp_init@ */
	390	PyType_GenericAlloc, /* @tp_alloc@ */
	391	abstract_pynew, /* @tp_new@ */
	392	0, /* @tp_free@ */
	393	0 /* @tp_is_gc@ */
	394	};
	395
	396	PySequenceMethods gmap_pysequence = {
	397	0, /* @sq_length@ */
	398	0, /* @sq_concat@ */
	399	0, /* @sq_repeat@ */
	400	0, /* @sq_item@ */
	401	0, /* @sq_slice@ */
	402	0, /* @sq_ass_item@ */
	403	0, /* @sq_ass_slice@ */
	404	PyMapping_HasKey, /* @sq_contains@ */
	405	0, /* @sq_inplace_concat@ */
406	0 /* @sq_inplace_repeat@ */
0b1eafbf	407	};
68ec53f3 MW	408
	409	int gmap_pysize(PyObject *me)
	410	{
	411	PyObject i = 0, x = 0;
	412	int rc = -1;
	413	int n = 0;
	414
	415	if ((i = PyObject_GetIter(me)) == 0) goto done;
	416	while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
	417	if (PyErr_Occurred()) goto done;
	418	rc = n;
	419	done:
	420	Py_XDECREF(i); Py_XDECREF(x);
	421	return (rc);
	422	}
	423
	424	PyObject gmapmeth_has_key(PyObject me, PyObject *arg)
	425	{
	426	PyObject *k;
	427	if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
	428	return (getbool(PyMapping_HasKey(me, k)));
	429	}
	430
	431	PyObject gmapmeth_keys(PyObject me, PyObject *arg)
	432	{
	433	PyObject l = 0, i = 0, k, rc = 0;
	434	int err;
	435
	436	if (!PyArg_ParseTuple(arg, ":keys") \|\|
	437	(l = PyList_New(0)) == 0 \|\|
	438	(i = PyObject_GetIter(me)) == 0)
	439	goto done;
	440	while ((k = PyIter_Next(i)) != 0)
	441	{ err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
	442	if (PyErr_Occurred()) goto done;
	443	rc = l; l = 0;
	444	done:
	445	Py_XDECREF(l); Py_XDECREF(i);
	446	return (rc);
	447	}
	448
	449	PyObject gmapmeth_values(PyObject me, PyObject *arg)
	450	{
	451	PyObject l = 0, i = 0, k, v, *rc = 0;
	452	int err = 0;
	453
	454	if (!PyArg_ParseTuple(arg, ":values") \|\|
	455	(l = PyList_New(0)) == 0 \|\|
	456	(i = PyObject_GetIter(me)) == 0)
	457	goto done;
0b1eafbf	458	while ((k = PyIter_Next(i)) != 0) {
68ec53f3 MW	459	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	460	PyList_Append(l, v))
	461	err = -1;
	462	Py_DECREF(k); Py_XDECREF(v);
	463	if (err) goto done;
	464	}
	465	if (PyErr_Occurred()) goto done;
	466	rc = l; l = 0;
	467	done:
	468	Py_XDECREF(l); Py_XDECREF(i);
	469	return (rc);
	470	}
	471
	472	PyObject gmapmeth_items(PyObject me, PyObject *arg)
	473	{
	474	PyObject l = 0, i = 0, k, v, z, rc = 0;
	475	int err = 0;
	476
	477	if (!PyArg_ParseTuple(arg, ":items") \|\|
	478	(l = PyList_New(0)) == 0 \|\|
	479	(i = PyObject_GetIter(me)) == 0)
	480	goto done;
	481	while ((k = PyIter_Next(i)) != 0) {
	482	z = 0;
	483	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	484	(z = Py_BuildValue("(OO)", k, v)) == 0 \|\|
	485	PyList_Append(l, z))
	486	err = -1;
	487	Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
	488	if (err) goto done;
	489	}
	490	if (PyErr_Occurred()) goto done;
	491	rc = l; l = 0;
	492	done:
	493	Py_XDECREF(l); Py_XDECREF(i);
	494	return (rc);
	495	}
	496
	497	PyObject gmapmeth_iterkeys(PyObject me, PyObject *arg)
	498	{
	499	if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
	500	return (PyObject_GetIter(me));
	501	}
	502
	503	PyObject gmapmeth_itervalues(PyObject me, PyObject *arg)
	504	{
	505	PyObject *i;
	506	iter_pyobj *ii;
	507
	508	if (!PyArg_ParseTuple(arg, ":itervalues") \|\|
	509	(i = PyObject_GetIter(me)) == 0)
	510	return (0);
	511	ii = PyObject_NEW(iter_pyobj, valiter_pytype);
	512	ii->map = me; Py_INCREF(me);
	513	ii->i = i;
	514	return ((PyObject *)ii);
	515	}
	516
	517	PyObject gmapmeth_iteritems(PyObject me, PyObject *arg)
	518	{
	519	PyObject *i;
	520	iter_pyobj *ii;
	521
	522	if (!PyArg_ParseTuple(arg, ":iteritems") \|\|
523	(i = PyObject_GetIter(me)) == 0)
524	return (0);
525	ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
526	ii->map = me; Py_INCREF(me);
527	ii->i = i;
528	return ((PyObject *)ii);
529	}
530
531	PyObject gmapmeth_clear(PyObject me, PyObject *arg)
532	{
533	PyObject i = 0, k = 0, *rc = 0;
534
535	if (!PyArg_ParseTuple(arg, ":clear") \|\|
536	(i = PyObject_GetIter(me)) == 0)
537	goto end;
538	while ((k = PyIter_Next(i)) != 0) {
539	PyObject_DelItem(me, k);
540	Py_DECREF(k);
541	}
542	if (PyErr_Occurred()) goto end;
543	rc = me; Py_INCREF(me);
544	end:
545	Py_XDECREF(i);
546	return (rc);
547	}
548
549	static char *def_kwlist[] = { "key", "default", 0 };
550
551	PyObject gmapmeth_get(PyObject me, PyObject arg, PyObject kw)
552	{
553	PyObject k, def = Py_None, *v;
554
555	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
556	return (0);
557	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
558	PyErr_Clear();
559	RETURN_OBJ(def);
560	}
561
562	PyObject gmapmeth_setdefault(PyObject me, PyObject arg, PyObject kw)
563	{
564	PyObject k, def = Py_None, *v;
565
566	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
567	def_kwlist, &k, &def))
568	return (0);
569	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
570	PyErr_Clear();
571	if (PyObject_SetItem(me, k, def)) return (0);
572	RETURN_OBJ(def);
573	}
574
575	PyObject gmapmeth_pop(PyObject me, PyObject arg, PyObject kw)
576	{
577	PyObject k, def = 0, *v;
578
579	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
580	return (0);
581	if ((v = PyObject_GetItem(me, k)) != 0) {
582	PyObject_DelItem(me, k);
583	return (v);
584	}
585	PyErr_Clear();
586	RETURN_OBJ(def);
587	}
588
589	PyObject gmapmeth_update(PyObject me, PyObject *arg)
590	{
591	PyObject map, i = 0, k, v, *rc = 0;
592	int err = 0;
593
594	if (!PyArg_ParseTuple(arg, "O:update", &map) \|\|
595	(i = PyObject_GetIter(map)) == 0)
596	goto end;
597	while ((k = PyIter_Next(i)) != 0) {
598	if ((v = PyObject_GetItem(map, k)) == 0 \|\|
599	PyObject_SetItem(me, k, v))
600	err = -1;
601	Py_DECREF(k); Py_XDECREF(v);
602	if (err) goto end;
603	}
604	if (PyErr_Occurred()) goto end;
605	rc = me; Py_INCREF(me);
606	end:
607	Py_XDECREF(i);
608	return (rc);
609	}
610
611	PyObject gmapmeth_popitem(PyObject me, PyObject *arg)
612	{
613	PyObject i = 0, k = 0, v = 0, rc = 0;
614
615	if (!PyArg_ParseTuple(arg, ":popitem") \|\|
616	(i = PyObject_GetIter(me)))
617	goto end;
618	if ((k = PyIter_Next(i)) == 0) {
619	if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
620	goto end;
621	}
622	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
623	PyObject_DelItem(me, k))
624	goto end;
625	rc = Py_BuildValue("(OO)", k, v);
626	end:
627	Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
628	return (rc);
629	}
630
631	PyMethodDef gmap_pymethods[] = {
632	GMAP_METHODS
633	{ 0 }
634	};
635
636	/----- Initialization ----------------------------------------------------/
637
8ca23175	638	void util_pyinit(void)
68ec53f3 MW	639	{
	640	INITTYPE(itemiter, root);
	641	INITTYPE(valiter, root);
	642	}
	643
8ca23175	644	void util_pyinsert(PyObject *mod)
68ec53f3 MW	645	{
	646	INSERT("ItemIter", itemiter_pytype);
	647	INSERT("ValueIter", valiter_pytype);
	648	}
	649
	650	/----- That's all, folks -------------------------------------------------/