[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"

/*----- External values ---------------------------------------------------*/

static PyObject *modname = 0;

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

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

static PyObject *i32 = 0;
static int init_i32(void)
  { if (!i32 && (i32 = PyInt_FromLong(32)) == 0) return (-1); return (0); }

PyObject *getk64(kludge64 u)
{
  PyObject *i = 0, *j = 0, *t;
  PyObject *rc = 0;

  if (init_i32()) goto end;
  if ((i = PyLong_FromUnsignedLong(HI64(u))) == 0) goto end;
  if ((t = PyNumber_InPlaceLshift(i, i32)) == 0) goto end;
  Py_DECREF(i); i = t;
  if ((j = PyLong_FromUnsignedLong(LO64(u))) == 0) goto end;
  if ((t = PyNumber_InPlaceOr(i, j)) == 0) goto end;
  Py_DECREF(i); i = t;
  if ((rc = PyNumber_Int(i)) == 0) goto end;
end:
  if (i) Py_DECREF(i);
  if (j) Py_DECREF(j);
  return (rc);
}

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 convk64(PyObject *o, void *pp)
{
  PyObject *i = 0, *t;
  int rc = 0;
  uint32 lo, hi;

  if (init_i32()) goto end;
  if ((i = PyNumber_Int(o)) == 0) goto end;
  lo = PyInt_AsUnsignedLongMask(i);
  if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end;
  Py_DECREF(i); i = t;
  hi = PyInt_AsUnsignedLongMask(i);
  if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end;
  Py_DECREF(i); i = t;
  if (PyObject_IsTrue(i)) VALERR("out of range");
  SET64(*(kludge64 *)pp, hi, lo);
  rc = 1;
end:
  if (i) Py_DECREF(i);
  return (rc);
}

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);
}

void typeready(PyTypeObject *ty)
{
  PyType_Ready(ty);
  PyDict_SetItemString(ty->tp_dict, "__module__", modname);
}

PyTypeObject *inittype(PyTypeObject *tyskel)
{
  PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
  ty->tp_flags |= Py_TPFLAGS_HEAPTYPE;
  typeready(ty);
  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@ */
};

Py_ssize_t 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)
{
  modname = PyString_FromString("catacomb");
  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
0156e402 MW	31	/----- External values ---------------------------------------------------/
	32
	33	static PyObject *modname = 0;
	34
68ec53f3 MW	35	/----- Conversions -------------------------------------------------------/
68ec53f3 MW	36
1e082a86 MW	37	PyObject *getulong(unsigned long w)
1e082a86 MW	38	{
4f3d0934	39	if (w <= LONG_MAX)
1e082a86 MW	40	return (PyInt_FromLong(w));
	41	else
	42	return (PyLong_FromUnsignedLong(w));
	43	}
68ec53f3	44
1b6734b6 MW	45	static PyObject *i32 = 0;
	46	static int init_i32(void)
	47	{ if (!i32 && (i32 = PyInt_FromLong(32)) == 0) return (-1); return (0); }
	48
	49	PyObject *getk64(kludge64 u)
	50	{
	51	PyObject i = 0, j = 0, *t;
	52	PyObject *rc = 0;
	53
	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;
	57	Py_DECREF(i); i = t;
	58	if ((j = PyLong_FromUnsignedLong(LO64(u))) == 0) goto end;
	59	if ((t = PyNumber_InPlaceOr(i, j)) == 0) goto end;
	60	Py_DECREF(i); i = t;
	61	if ((rc = PyNumber_Int(i)) == 0) goto end;
	62	end:
	63	if (i) Py_DECREF(i);
	64	if (j) Py_DECREF(j);
	65	return (rc);
	66	}
	67
68ec53f3 MW	68	PyObject *getbool(int b)
	69	{
	70	if (b) RETURN_TRUE;
	71	else RETURN_FALSE;
	72	}
	73
	74	PyObject abstract_pynew(PyTypeObject ty, PyObject arg, PyObject kw)
	75	{
	76	PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
	77	return (0);
	78	}
	79
	80	int convulong(PyObject o, void pp)
	81	{
	82	long i;
	83	unsigned long *p = pp;
	84	PyObject *t;
	85
	86	if (PyInt_Check(o)) {
	87	i = PyInt_AS_LONG(o);
799dffb2	88	if (i < 0) VALERR("must be nonnegative");
68ec53f3 MW	89	*p = i;
	90	} else {
	91	if ((t = PyNumber_Long(o)) == 0) goto end;
	92	*p = PyLong_AsUnsignedLong(t);
	93	Py_DECREF(t);
	94	if (PyErr_Occurred()) goto end;
	95	}
	96	return (1);
	97	end:
	98	return (0);
	99	}
	100
	101	#define CONVU_(n) \
	102	int convu##n(PyObject o, void pp) \
	103	{ \
	104	unsigned long u; \
	105	uint##n *p = pp; \
	106	\
	107	if (!convulong(o, &u)) goto end; \
799dffb2	108	if (u > MASK##n) VALERR("out of range"); \
68ec53f3 MW	109	*p = u; \
	110	return (1); \
	111	end: \
	112	return (0); \
	113	}
	114	DOUINTSZ(CONVU_)
	115
	116	int convuint(PyObject o, void pp)
	117	{
	118	unsigned long u;
	119	unsigned *p = pp;
	120
	121	if (!convulong(o, &u)) goto end;
799dffb2	122	if (u > UINT_MAX) VALERR("out of range");
68ec53f3 MW	123	*p = u;
	124	return (1);
	125	end:
	126	return (0);
	127	}
	128
1b6734b6 MW	129	int convk64(PyObject o, void pp)
	130	{
	131	PyObject i = 0, t;
	132	int rc = 0;
	133	uint32 lo, hi;
	134
	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;
	139	Py_DECREF(i); i = t;
	140	hi = PyInt_AsUnsignedLongMask(i);
	141	if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end;
	142	Py_DECREF(i); i = t;
	143	if (PyObject_IsTrue(i)) VALERR("out of range");
	144	SET64((kludge64 )pp, hi, lo);
	145	rc = 1;
	146	end:
	147	if (i) Py_DECREF(i);
	148	return (rc);
	149	}
	150
68ec53f3 MW	151	int convmpw(PyObject o, void pp)
	152	{
	153	unsigned long u;
	154	unsigned *p = pp;
	155
	156	if (!convulong(o, &u)) goto end;
799dffb2	157	if (u > MPW_MAX) VALERR("out of range");
68ec53f3 MW	158	*p = u;
	159	return (1);
	160	end:
	161	return (0);
	162	}
	163
	164	int convszt(PyObject o, void pp)
	165	{
	166	unsigned long u;
	167	size_t *p = pp;
	168
	169	if (!convulong(o, &u)) goto end;
799dffb2	170	if (u > ~(size_t)0) VALERR("out of range");
68ec53f3 MW	171	*p = u;
	172	return (1);
	173	end:
	174	return (0);
	175	}
	176
	177	int convbool(PyObject o, void pp)
	178	{
	179	(int )pp = PyObject_IsTrue(o);
	180	return (1);
	181	}
	182
	183	/----- Type messing ------------------------------------------------------/
	184
	185	static const PyTypeObject emptytype = { 0 };
	186
	187	void newtype(PyTypeObject metaty,
	188	const PyTypeObject *skel,
	189	const char *name)
	190	{
	191	PyHeapTypeObject *ty =
	192	(PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
	193	if (!skel) skel = &emptytype;
	194	memcpy(ty, skel, sizeof(*skel));
d4a9e7e7	195	if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
68ec53f3	196	#define COPY(blah) do { \
d4a9e7e7	197	if (ty->ht_type.tp_as_##blah) { \
68ec53f3	198	memcpy(&ty->as_##blah, \
d4a9e7e7	199	ty->ht_type.tp_as_##blah, \
68ec53f3	200	sizeof(ty->as_##blah)); \
d4a9e7e7	201	ty->ht_type.tp_as_##blah = &ty->as_##blah; \
68ec53f3 MW	202	} \
	203	} while (0)
	204	COPY(number);
	205	COPY(sequence);
	206	COPY(mapping);
	207	COPY(buffer);
	208	#undef COPY
	209	if (name)
d4a9e7e7 MW	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);
	213	if (ty->ht_name)
	214	ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
f60b520f	215	DISCARD(PyObject_INIT(&ty->ht_type, metaty));
68ec53f3 MW	216	Py_INCREF(metaty);
	217	return (ty);
	218	}
	219
0156e402 MW	220	void typeready(PyTypeObject *ty)
	221	{
	222	PyType_Ready(ty);
	223	PyDict_SetItemString(ty->tp_dict, "__module__", modname);
	224	}
	225
68ec53f3 MW	226	PyTypeObject inittype(PyTypeObject tyskel)
	227	{
	228	PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
	229	ty->tp_flags \|= Py_TPFLAGS_HEAPTYPE;
0156e402	230	typeready(ty);
68ec53f3 MW	231	return (ty);
	232	}
	233
	234	/----- Constants ---------------------------------------------------------/
	235
	236	void setconstants(PyObject mod, const struct nameval c)
	237	{
	238	PyObject *x;
	239
	240	while (c->name) {
	241	if (c->value > LONG_MAX)
	242	x = PyLong_FromUnsignedLong(c->value);
	243	else
	244	x = PyInt_FromLong(c->value);
	245	PyModule_AddObject(mod, (/unconst/ char *)c->name, x);
	246	c++;
	247	}
	248	}
	249
	250	/----- Building method tables --------------------------------------------/
	251
	252	DA_DECL(method_v, PyMethodDef);
	253	static method_v global_pymethods = DA_INIT;
	254	void addmethods(const PyMethodDef *m)
	255	{
	256	size_t n;
	257
	258	for (n = 0; m[n].ml_name; n++);
	259	DA_ENSURE(&global_pymethods, n);
	260	memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
	261	m, n * sizeof(*m));
	262	DA_EXTEND(&global_pymethods, n);
	263	}
	264
	265	PyMethodDef *donemethods(void)
	266	{
	267	static const PyMethodDef mzero = { 0 };
	268	DA_PUSH(&global_pymethods, mzero);
	269	return (DA(&global_pymethods));
	270	}
	271
	272	/----- Exceptions --------------------------------------------------------/
	273
35c34efb MW	274	PyObject mkexc(PyObject mod, PyObject *base,
35c34efb MW	275	const char name, PyMethodDef mm)
68ec53f3 MW	276	{
	277	PyObject *nameobj = 0;
	278	PyObject *dict = 0;
	279	PyObject *exc = 0;
	280	PyObject *func = 0;
	281	PyObject *meth = 0;
	282
	283	if ((nameobj = PyString_FromFormat("%s.%s",
	284	PyModule_GetName(mod),
	285	name)) == 0 \|\|
	286	(dict = PyDict_New()) == 0 \|\|
	287	(exc = PyErr_NewException(PyString_AS_STRING(nameobj),
	288	base, dict)) == 0)
	289	goto fail;
	290
	291	if (mm) {
	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))
	296	goto fail;
	297	Py_DECREF(func); func = 0;
	298	Py_DECREF(meth); meth = 0;
	299	mm++;
	300	}
	301	}
	302
	303	done:
	304	Py_XDECREF(nameobj);
	305	Py_XDECREF(dict);
	306	return (exc);
	307
	308	fail:
	309	Py_XDECREF(exc);
	310	Py_XDECREF(func);
	311	Py_XDECREF(meth);
	312	exc = 0;
	313	goto done;
	314	}
	315
	316	/----- Generic dictionary methods ----------------------------------------/
	317
	318	static PyTypeObject itemiter_pytype, valiter_pytype;
	319
	320	typedef struct iter_pyobj {
	321	PyObject_HEAD
	322	PyObject *map;
	323	PyObject *i;
	324	} iter_pyobj;
	325	#define ITER_MAP(o) (((iter_pyobj *)(o))->map)
	326	#define ITER_I(o) (((iter_pyobj *)(o))->i)
	327
	328	static void iter_pydealloc(PyObject *me)
	329	{ Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
	330
	331	static PyObject itemiter_pynext(PyObject me)
	332	{
	333	PyObject k = 0, v = 0, *rc = 0;
0b1eafbf	334
68ec53f3 MW	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);
	339	return (rc);
	340	}
	341
	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@ */
	347
	348	iter_pydealloc, /* @tp_dealloc@ */
	349	0, /* @tp_print@ */
	350	0, /* @tp_getattr@ */
	351	0, /* @tp_setattr@ */
	352	0, /* @tp_compare@ */
	353	0, /* @tp_repr@ */
	354	0, /* @tp_as_number@ */
	355	0, /* @tp_as_sequence@ */
	356	0, /* @tp_as_mapping@ */
	357	0, /* @tp_hash@ */
	358	0, /* @tp_call@ */
	359	0, /* @tp_str@ */
	360	0, /* @tp_getattro@ */
	361	0, /* @tp_setattro@ */
	362	0, /* @tp_as_buffer@ */
	363	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	364	Py_TPFLAGS_BASETYPE,
	365
	366	/* @tp_doc@ */
	367	"Iterates over the items of a mapping.",
	368
	369	0, /* @tp_traverse@ */
	370	0, /* @tp_clear@ */
	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@ */
	377	0, /* @tp_getset@ */
	378	0, /* @tp_base@ */
	379	0, /* @tp_dict@ */
	380	0, /* @tp_descr_get@ */
	381	0, /* @tp_descr_set@ */
	382	0, /* @tp_dictoffset@ */
	383	0, /* @tp_init@ */
	384	PyType_GenericAlloc, /* @tp_alloc@ */
	385	abstract_pynew, /* @tp_new@ */
	386	0, /* @tp_free@ */
	387	0 /* @tp_is_gc@ */
	388	};
	389
	390	static PyObject valiter_pynext(PyObject me)
	391	{
	392	PyObject k = 0, rc = 0;
0b1eafbf	393
68ec53f3 MW	394	if ((k = PyIter_Next(ITER_I(me))) != 0)
	395	rc = PyObject_GetItem(ITER_MAP(me), k);
	396	Py_XDECREF(k);
	397	return (rc);
	398	}
	399
	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@ */
	405
	406	iter_pydealloc, /* @tp_dealloc@ */
	407	0, /* @tp_print@ */
	408	0, /* @tp_getattr@ */
	409	0, /* @tp_setattr@ */
	410	0, /* @tp_compare@ */
	411	0, /* @tp_repr@ */
	412	0, /* @tp_as_number@ */
	413	0, /* @tp_as_sequence@ */
	414	0, /* @tp_as_mapping@ */
	415	0, /* @tp_hash@ */
	416	0, /* @tp_call@ */
	417	0, /* @tp_str@ */
	418	0, /* @tp_getattro@ */
	419	0, /* @tp_setattro@ */
	420	0, /* @tp_as_buffer@ */
	421	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	422	Py_TPFLAGS_BASETYPE,
	423
	424	/* @tp_doc@ */
	425	"Iterates over the items of a mapping.",
	426
	427	0, /* @tp_traverse@ */
	428	0, /* @tp_clear@ */
	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@ */
	435	0, /* @tp_getset@ */
	436	0, /* @tp_base@ */
	437	0, /* @tp_dict@ */
	438	0, /* @tp_descr_get@ */
	439	0, /* @tp_descr_set@ */
	440	0, /* @tp_dictoffset@ */
	441	0, /* @tp_init@ */
	442	PyType_GenericAlloc, /* @tp_alloc@ */
	443	abstract_pynew, /* @tp_new@ */
	444	0, /* @tp_free@ */
	445	0 /* @tp_is_gc@ */
	446	};
	447
	448	PySequenceMethods gmap_pysequence = {
	449	0, /* @sq_length@ */
	450	0, /* @sq_concat@ */
	451	0, /* @sq_repeat@ */
	452	0, /* @sq_item@ */
	453	0, /* @sq_slice@ */
	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@ */
0b1eafbf	459	};
68ec53f3	460
9d73ed80	461	Py_ssize_t gmap_pysize(PyObject *me)
68ec53f3 MW	462	{
	463	PyObject i = 0, x = 0;
	464	int rc = -1;
	465	int n = 0;
	466
	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;
	470	rc = n;
	471	done:
	472	Py_XDECREF(i); Py_XDECREF(x);
	473	return (rc);
	474	}
	475
	476	PyObject gmapmeth_has_key(PyObject me, PyObject *arg)
	477	{
	478	PyObject *k;
	479	if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
	480	return (getbool(PyMapping_HasKey(me, k)));
	481	}
	482
	483	PyObject gmapmeth_keys(PyObject me, PyObject *arg)
	484	{
	485	PyObject l = 0, i = 0, k, rc = 0;
	486	int err;
	487
	488	if (!PyArg_ParseTuple(arg, ":keys") \|\|
	489	(l = PyList_New(0)) == 0 \|\|
	490	(i = PyObject_GetIter(me)) == 0)
	491	goto done;
	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;
	495	rc = l; l = 0;
	496	done:
	497	Py_XDECREF(l); Py_XDECREF(i);
	498	return (rc);
	499	}
	500
	501	PyObject gmapmeth_values(PyObject me, PyObject *arg)
	502	{
	503	PyObject l = 0, i = 0, k, v, *rc = 0;
	504	int err = 0;
	505
	506	if (!PyArg_ParseTuple(arg, ":values") \|\|
	507	(l = PyList_New(0)) == 0 \|\|
	508	(i = PyObject_GetIter(me)) == 0)
	509	goto done;
0b1eafbf	510	while ((k = PyIter_Next(i)) != 0) {
68ec53f3 MW	511	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	512	PyList_Append(l, v))
	513	err = -1;
	514	Py_DECREF(k); Py_XDECREF(v);
	515	if (err) goto done;
	516	}
	517	if (PyErr_Occurred()) goto done;
	518	rc = l; l = 0;
	519	done:
	520	Py_XDECREF(l); Py_XDECREF(i);
	521	return (rc);
	522	}
	523
	524	PyObject gmapmeth_items(PyObject me, PyObject *arg)
	525	{
	526	PyObject l = 0, i = 0, k, v, z, rc = 0;
	527	int err = 0;
	528
	529	if (!PyArg_ParseTuple(arg, ":items") \|\|
	530	(l = PyList_New(0)) == 0 \|\|
	531	(i = PyObject_GetIter(me)) == 0)
	532	goto done;
	533	while ((k = PyIter_Next(i)) != 0) {
	534	z = 0;
	535	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	536	(z = Py_BuildValue("(OO)", k, v)) == 0 \|\|
	537	PyList_Append(l, z))
	538	err = -1;
	539	Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
	540	if (err) goto done;
	541	}
	542	if (PyErr_Occurred()) goto done;
	543	rc = l; l = 0;
	544	done:
	545	Py_XDECREF(l); Py_XDECREF(i);
	546	return (rc);
	547	}
	548
	549	PyObject gmapmeth_iterkeys(PyObject me, PyObject *arg)
	550	{
	551	if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
	552	return (PyObject_GetIter(me));
	553	}
	554
	555	PyObject gmapmeth_itervalues(PyObject me, PyObject *arg)
	556	{
	557	PyObject *i;
	558	iter_pyobj *ii;
	559
	560	if (!PyArg_ParseTuple(arg, ":itervalues") \|\|
	561	(i = PyObject_GetIter(me)) == 0)
	562	return (0);
	563	ii = PyObject_NEW(iter_pyobj, valiter_pytype);
	564	ii->map = me; Py_INCREF(me);
	565	ii->i = i;
	566	return ((PyObject *)ii);
	567	}
	568
	569	PyObject gmapmeth_iteritems(PyObject me, PyObject *arg)
	570	{
	571	PyObject *i;
	572	iter_pyobj *ii;
	573
	574	if (!PyArg_ParseTuple(arg, ":iteritems") \|\|
575	(i = PyObject_GetIter(me)) == 0)
576	return (0);
577	ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
578	ii->map = me; Py_INCREF(me);
579	ii->i = i;
580	return ((PyObject *)ii);
581	}
582
583	PyObject gmapmeth_clear(PyObject me, PyObject *arg)
584	{
585	PyObject i = 0, k = 0, *rc = 0;
586
587	if (!PyArg_ParseTuple(arg, ":clear") \|\|
588	(i = PyObject_GetIter(me)) == 0)
589	goto end;
590	while ((k = PyIter_Next(i)) != 0) {
591	PyObject_DelItem(me, k);
592	Py_DECREF(k);
593	}
594	if (PyErr_Occurred()) goto end;
595	rc = me; Py_INCREF(me);
596	end:
597	Py_XDECREF(i);
598	return (rc);
599	}
600
601	static char *def_kwlist[] = { "key", "default", 0 };
602
603	PyObject gmapmeth_get(PyObject me, PyObject arg, PyObject kw)
604	{
605	PyObject k, def = Py_None, *v;
606
607	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
608	return (0);
609	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
610	PyErr_Clear();
611	RETURN_OBJ(def);
612	}
613
614	PyObject gmapmeth_setdefault(PyObject me, PyObject arg, PyObject kw)
615	{
616	PyObject k, def = Py_None, *v;
617
618	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
619	def_kwlist, &k, &def))
620	return (0);
621	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
622	PyErr_Clear();
623	if (PyObject_SetItem(me, k, def)) return (0);
624	RETURN_OBJ(def);
625	}
626
627	PyObject gmapmeth_pop(PyObject me, PyObject arg, PyObject kw)
628	{
629	PyObject k, def = 0, *v;
630
631	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
632	return (0);
633	if ((v = PyObject_GetItem(me, k)) != 0) {
634	PyObject_DelItem(me, k);
635	return (v);
636	}
637	PyErr_Clear();
638	RETURN_OBJ(def);
639	}
640
641	PyObject gmapmeth_update(PyObject me, PyObject *arg)
642	{
643	PyObject map, i = 0, k, v, *rc = 0;
644	int err = 0;
645
646	if (!PyArg_ParseTuple(arg, "O:update", &map) \|\|
647	(i = PyObject_GetIter(map)) == 0)
648	goto end;
649	while ((k = PyIter_Next(i)) != 0) {
650	if ((v = PyObject_GetItem(map, k)) == 0 \|\|
651	PyObject_SetItem(me, k, v))
652	err = -1;
653	Py_DECREF(k); Py_XDECREF(v);
654	if (err) goto end;
655	}
656	if (PyErr_Occurred()) goto end;
657	rc = me; Py_INCREF(me);
658	end:
659	Py_XDECREF(i);
660	return (rc);
661	}
662
663	PyObject gmapmeth_popitem(PyObject me, PyObject *arg)
664	{
665	PyObject i = 0, k = 0, v = 0, rc = 0;
666
667	if (!PyArg_ParseTuple(arg, ":popitem") \|\|
668	(i = PyObject_GetIter(me)))
669	goto end;
670	if ((k = PyIter_Next(i)) == 0) {
671	if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
672	goto end;
673	}
674	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
675	PyObject_DelItem(me, k))
676	goto end;
677	rc = Py_BuildValue("(OO)", k, v);
678	end:
679	Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
680	return (rc);
681	}
682
683	PyMethodDef gmap_pymethods[] = {
684	GMAP_METHODS
685	{ 0 }
686	};
687
688	/----- Initialization ----------------------------------------------------/
689
8ca23175	690	void util_pyinit(void)
68ec53f3	691	{
0156e402	692	modname = PyString_FromString("catacomb");
68ec53f3 MW	693	INITTYPE(itemiter, root);
	694	INITTYPE(valiter, root);
	695	}
	696
8ca23175	697	void util_pyinsert(PyObject *mod)
68ec53f3 MW	698	{
	699	INSERT("ItemIter", itemiter_pytype);
	700	INSERT("ValueIter", valiter_pytype);
	701	}
	702
	703	/----- That's all, folks -------------------------------------------------/