[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 (!o) VALERR("can't delete");
  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)
{
  if (!o) VALERR("can't delete");
  *(int *)pp = PyObject_IsTrue(o);
  return (1);
end:
  return (0);
}

/*----- 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 *meta)
{
  PyTypeObject *ty = newtype(meta, 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
c0ddcbac	86	if (!o) VALERR("can't delete");
68ec53f3 MW	87	if (PyInt_Check(o)) {
68ec53f3 MW	88	i = PyInt_AS_LONG(o);
799dffb2	89	if (i < 0) VALERR("must be nonnegative");
68ec53f3 MW	90	*p = i;
	91	} else {
	92	if ((t = PyNumber_Long(o)) == 0) goto end;
	93	*p = PyLong_AsUnsignedLong(t);
	94	Py_DECREF(t);
	95	if (PyErr_Occurred()) goto end;
	96	}
	97	return (1);
	98	end:
	99	return (0);
	100	}
	101
	102	#define CONVU_(n) \
	103	int convu##n(PyObject o, void pp) \
	104	{ \
	105	unsigned long u; \
	106	uint##n *p = pp; \
	107	\
	108	if (!convulong(o, &u)) goto end; \
799dffb2	109	if (u > MASK##n) VALERR("out of range"); \
68ec53f3 MW	110	*p = u; \
	111	return (1); \
	112	end: \
	113	return (0); \
	114	}
	115	DOUINTSZ(CONVU_)
	116
	117	int convuint(PyObject o, void pp)
	118	{
	119	unsigned long u;
	120	unsigned *p = pp;
	121
	122	if (!convulong(o, &u)) goto end;
799dffb2	123	if (u > UINT_MAX) VALERR("out of range");
68ec53f3 MW	124	*p = u;
	125	return (1);
	126	end:
	127	return (0);
	128	}
	129
1b6734b6 MW	130	int convk64(PyObject o, void pp)
	131	{
	132	PyObject i = 0, t;
	133	int rc = 0;
	134	uint32 lo, hi;
	135
	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;
	140	Py_DECREF(i); i = t;
	141	hi = PyInt_AsUnsignedLongMask(i);
	142	if ((t = PyNumber_InPlaceRshift(i, i32)) == 0) goto end;
	143	Py_DECREF(i); i = t;
	144	if (PyObject_IsTrue(i)) VALERR("out of range");
	145	SET64((kludge64 )pp, hi, lo);
	146	rc = 1;
	147	end:
	148	if (i) Py_DECREF(i);
	149	return (rc);
	150	}
	151
68ec53f3 MW	152	int convmpw(PyObject o, void pp)
	153	{
	154	unsigned long u;
	155	unsigned *p = pp;
	156
	157	if (!convulong(o, &u)) goto end;
799dffb2	158	if (u > MPW_MAX) VALERR("out of range");
68ec53f3 MW	159	*p = u;
	160	return (1);
	161	end:
	162	return (0);
	163	}
	164
	165	int convszt(PyObject o, void pp)
	166	{
	167	unsigned long u;
	168	size_t *p = pp;
	169
	170	if (!convulong(o, &u)) goto end;
799dffb2	171	if (u > ~(size_t)0) VALERR("out of range");
68ec53f3 MW	172	*p = u;
	173	return (1);
	174	end:
	175	return (0);
	176	}
	177
	178	int convbool(PyObject o, void pp)
	179	{
c0ddcbac	180	if (!o) VALERR("can't delete");
68ec53f3 MW	181	(int )pp = PyObject_IsTrue(o);
68ec53f3 MW	182	return (1);
c0ddcbac MW	183	end:
c0ddcbac MW	184	return (0);
68ec53f3 MW	185	}
	186
	187	/----- Type messing ------------------------------------------------------/
	188
	189	static const PyTypeObject emptytype = { 0 };
	190
	191	void newtype(PyTypeObject metaty,
	192	const PyTypeObject *skel,
	193	const char *name)
	194	{
	195	PyHeapTypeObject *ty =
	196	(PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
	197	if (!skel) skel = &emptytype;
	198	memcpy(ty, skel, sizeof(*skel));
d4a9e7e7	199	if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
68ec53f3	200	#define COPY(blah) do { \
d4a9e7e7	201	if (ty->ht_type.tp_as_##blah) { \
68ec53f3	202	memcpy(&ty->as_##blah, \
d4a9e7e7	203	ty->ht_type.tp_as_##blah, \
68ec53f3	204	sizeof(ty->as_##blah)); \
d4a9e7e7	205	ty->ht_type.tp_as_##blah = &ty->as_##blah; \
68ec53f3 MW	206	} \
	207	} while (0)
	208	COPY(number);
	209	COPY(sequence);
	210	COPY(mapping);
	211	COPY(buffer);
	212	#undef COPY
	213	if (name)
d4a9e7e7 MW	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);
	217	if (ty->ht_name)
	218	ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
f60b520f	219	DISCARD(PyObject_INIT(&ty->ht_type, metaty));
68ec53f3 MW	220	Py_INCREF(metaty);
	221	return (ty);
	222	}
	223
0156e402 MW	224	void typeready(PyTypeObject *ty)
	225	{
	226	PyType_Ready(ty);
	227	PyDict_SetItemString(ty->tp_dict, "__module__", modname);
	228	}
	229
017d5f65	230	PyTypeObject inittype(PyTypeObject tyskel, PyTypeObject *meta)
68ec53f3	231	{
017d5f65	232	PyTypeObject *ty = newtype(meta, tyskel, 0);
68ec53f3	233	ty->tp_flags \|= Py_TPFLAGS_HEAPTYPE;
0156e402	234	typeready(ty);
68ec53f3 MW	235	return (ty);
	236	}
	237
	238	/----- Constants ---------------------------------------------------------/
	239
	240	void setconstants(PyObject mod, const struct nameval c)
	241	{
	242	PyObject *x;
	243
	244	while (c->name) {
	245	if (c->value > LONG_MAX)
	246	x = PyLong_FromUnsignedLong(c->value);
	247	else
	248	x = PyInt_FromLong(c->value);
	249	PyModule_AddObject(mod, (/unconst/ char *)c->name, x);
	250	c++;
	251	}
	252	}
	253
	254	/----- Building method tables --------------------------------------------/
	255
	256	DA_DECL(method_v, PyMethodDef);
	257	static method_v global_pymethods = DA_INIT;
	258	void addmethods(const PyMethodDef *m)
	259	{
	260	size_t n;
	261
	262	for (n = 0; m[n].ml_name; n++);
	263	DA_ENSURE(&global_pymethods, n);
	264	memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
	265	m, n * sizeof(*m));
	266	DA_EXTEND(&global_pymethods, n);
	267	}
	268
	269	PyMethodDef *donemethods(void)
	270	{
	271	static const PyMethodDef mzero = { 0 };
	272	DA_PUSH(&global_pymethods, mzero);
	273	return (DA(&global_pymethods));
	274	}
	275
	276	/----- Exceptions --------------------------------------------------------/
	277
35c34efb MW	278	PyObject mkexc(PyObject mod, PyObject *base,
35c34efb MW	279	const char name, PyMethodDef mm)
68ec53f3 MW	280	{
	281	PyObject *nameobj = 0;
	282	PyObject *dict = 0;
	283	PyObject *exc = 0;
	284	PyObject *func = 0;
	285	PyObject *meth = 0;
	286
	287	if ((nameobj = PyString_FromFormat("%s.%s",
	288	PyModule_GetName(mod),
	289	name)) == 0 \|\|
	290	(dict = PyDict_New()) == 0 \|\|
	291	(exc = PyErr_NewException(PyString_AS_STRING(nameobj),
	292	base, dict)) == 0)
	293	goto fail;
	294
	295	if (mm) {
	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))
	300	goto fail;
	301	Py_DECREF(func); func = 0;
	302	Py_DECREF(meth); meth = 0;
	303	mm++;
	304	}
	305	}
	306
	307	done:
	308	Py_XDECREF(nameobj);
	309	Py_XDECREF(dict);
	310	return (exc);
	311
	312	fail:
	313	Py_XDECREF(exc);
	314	Py_XDECREF(func);
	315	Py_XDECREF(meth);
	316	exc = 0;
	317	goto done;
	318	}
	319
	320	/----- Generic dictionary methods ----------------------------------------/
	321
	322	static PyTypeObject itemiter_pytype, valiter_pytype;
	323
	324	typedef struct iter_pyobj {
	325	PyObject_HEAD
	326	PyObject *map;
	327	PyObject *i;
	328	} iter_pyobj;
	329	#define ITER_MAP(o) (((iter_pyobj *)(o))->map)
	330	#define ITER_I(o) (((iter_pyobj *)(o))->i)
	331
	332	static void iter_pydealloc(PyObject *me)
	333	{ Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
	334
	335	static PyObject itemiter_pynext(PyObject me)
	336	{
	337	PyObject k = 0, v = 0, *rc = 0;
0b1eafbf	338
68ec53f3 MW	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);
	343	return (rc);
	344	}
	345
	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@ */
	351
	352	iter_pydealloc, /* @tp_dealloc@ */
	353	0, /* @tp_print@ */
	354	0, /* @tp_getattr@ */
	355	0, /* @tp_setattr@ */
	356	0, /* @tp_compare@ */
	357	0, /* @tp_repr@ */
	358	0, /* @tp_as_number@ */
	359	0, /* @tp_as_sequence@ */
	360	0, /* @tp_as_mapping@ */
	361	0, /* @tp_hash@ */
	362	0, /* @tp_call@ */
	363	0, /* @tp_str@ */
	364	0, /* @tp_getattro@ */
	365	0, /* @tp_setattro@ */
	366	0, /* @tp_as_buffer@ */
	367	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	368	Py_TPFLAGS_BASETYPE,
	369
	370	/* @tp_doc@ */
	371	"Iterates over the items of a mapping.",
	372
	373	0, /* @tp_traverse@ */
	374	0, /* @tp_clear@ */
	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@ */
	381	0, /* @tp_getset@ */
	382	0, /* @tp_base@ */
	383	0, /* @tp_dict@ */
	384	0, /* @tp_descr_get@ */
	385	0, /* @tp_descr_set@ */
	386	0, /* @tp_dictoffset@ */
	387	0, /* @tp_init@ */
	388	PyType_GenericAlloc, /* @tp_alloc@ */
	389	abstract_pynew, /* @tp_new@ */
	390	0, /* @tp_free@ */
	391	0 /* @tp_is_gc@ */
	392	};
	393
	394	static PyObject valiter_pynext(PyObject me)
	395	{
	396	PyObject k = 0, rc = 0;
0b1eafbf	397
68ec53f3 MW	398	if ((k = PyIter_Next(ITER_I(me))) != 0)
	399	rc = PyObject_GetItem(ITER_MAP(me), k);
	400	Py_XDECREF(k);
	401	return (rc);
	402	}
	403
	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@ */
	409
	410	iter_pydealloc, /* @tp_dealloc@ */
	411	0, /* @tp_print@ */
	412	0, /* @tp_getattr@ */
	413	0, /* @tp_setattr@ */
	414	0, /* @tp_compare@ */
	415	0, /* @tp_repr@ */
	416	0, /* @tp_as_number@ */
	417	0, /* @tp_as_sequence@ */
	418	0, /* @tp_as_mapping@ */
	419	0, /* @tp_hash@ */
	420	0, /* @tp_call@ */
	421	0, /* @tp_str@ */
	422	0, /* @tp_getattro@ */
	423	0, /* @tp_setattro@ */
	424	0, /* @tp_as_buffer@ */
	425	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	426	Py_TPFLAGS_BASETYPE,
	427
	428	/* @tp_doc@ */
	429	"Iterates over the items of a mapping.",
	430
	431	0, /* @tp_traverse@ */
	432	0, /* @tp_clear@ */
	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@ */
	439	0, /* @tp_getset@ */
	440	0, /* @tp_base@ */
	441	0, /* @tp_dict@ */
	442	0, /* @tp_descr_get@ */
	443	0, /* @tp_descr_set@ */
	444	0, /* @tp_dictoffset@ */
	445	0, /* @tp_init@ */
	446	PyType_GenericAlloc, /* @tp_alloc@ */
	447	abstract_pynew, /* @tp_new@ */
	448	0, /* @tp_free@ */
	449	0 /* @tp_is_gc@ */
	450	};
	451
	452	PySequenceMethods gmap_pysequence = {
	453	0, /* @sq_length@ */
	454	0, /* @sq_concat@ */
	455	0, /* @sq_repeat@ */
	456	0, /* @sq_item@ */
	457	0, /* @sq_slice@ */
	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@ */
0b1eafbf	463	};
68ec53f3	464
9d73ed80	465	Py_ssize_t gmap_pysize(PyObject *me)
68ec53f3 MW	466	{
	467	PyObject i = 0, x = 0;
	468	int rc = -1;
	469	int n = 0;
	470
	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;
	474	rc = n;
	475	done:
	476	Py_XDECREF(i); Py_XDECREF(x);
	477	return (rc);
	478	}
	479
	480	PyObject gmapmeth_has_key(PyObject me, PyObject *arg)
	481	{
	482	PyObject *k;
	483	if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
	484	return (getbool(PyMapping_HasKey(me, k)));
	485	}
	486
	487	PyObject gmapmeth_keys(PyObject me, PyObject *arg)
	488	{
	489	PyObject l = 0, i = 0, k, rc = 0;
	490	int err;
	491
	492	if (!PyArg_ParseTuple(arg, ":keys") \|\|
	493	(l = PyList_New(0)) == 0 \|\|
	494	(i = PyObject_GetIter(me)) == 0)
	495	goto done;
	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;
	499	rc = l; l = 0;
	500	done:
	501	Py_XDECREF(l); Py_XDECREF(i);
	502	return (rc);
	503	}
	504
	505	PyObject gmapmeth_values(PyObject me, PyObject *arg)
	506	{
	507	PyObject l = 0, i = 0, k, v, *rc = 0;
	508	int err = 0;
	509
	510	if (!PyArg_ParseTuple(arg, ":values") \|\|
	511	(l = PyList_New(0)) == 0 \|\|
	512	(i = PyObject_GetIter(me)) == 0)
	513	goto done;
0b1eafbf	514	while ((k = PyIter_Next(i)) != 0) {
68ec53f3 MW	515	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	516	PyList_Append(l, v))
	517	err = -1;
	518	Py_DECREF(k); Py_XDECREF(v);
	519	if (err) goto done;
	520	}
	521	if (PyErr_Occurred()) goto done;
	522	rc = l; l = 0;
	523	done:
	524	Py_XDECREF(l); Py_XDECREF(i);
	525	return (rc);
	526	}
	527
	528	PyObject gmapmeth_items(PyObject me, PyObject *arg)
	529	{
	530	PyObject l = 0, i = 0, k, v, z, rc = 0;
	531	int err = 0;
	532
	533	if (!PyArg_ParseTuple(arg, ":items") \|\|
	534	(l = PyList_New(0)) == 0 \|\|
	535	(i = PyObject_GetIter(me)) == 0)
	536	goto done;
	537	while ((k = PyIter_Next(i)) != 0) {
	538	z = 0;
	539	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	540	(z = Py_BuildValue("(OO)", k, v)) == 0 \|\|
	541	PyList_Append(l, z))
	542	err = -1;
	543	Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
	544	if (err) goto done;
	545	}
	546	if (PyErr_Occurred()) goto done;
	547	rc = l; l = 0;
	548	done:
	549	Py_XDECREF(l); Py_XDECREF(i);
	550	return (rc);
	551	}
	552
	553	PyObject gmapmeth_iterkeys(PyObject me, PyObject *arg)
	554	{
	555	if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
	556	return (PyObject_GetIter(me));
	557	}
	558
	559	PyObject gmapmeth_itervalues(PyObject me, PyObject *arg)
	560	{
	561	PyObject *i;
	562	iter_pyobj *ii;
	563
	564	if (!PyArg_ParseTuple(arg, ":itervalues") \|\|
	565	(i = PyObject_GetIter(me)) == 0)
	566	return (0);
	567	ii = PyObject_NEW(iter_pyobj, valiter_pytype);
	568	ii->map = me; Py_INCREF(me);
	569	ii->i = i;
	570	return ((PyObject *)ii);
	571	}
	572
	573	PyObject gmapmeth_iteritems(PyObject me, PyObject *arg)
	574	{
	575	PyObject *i;
	576	iter_pyobj *ii;
	577
	578	if (!PyArg_ParseTuple(arg, ":iteritems") \|\|
579	(i = PyObject_GetIter(me)) == 0)
580	return (0);
581	ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
582	ii->map = me; Py_INCREF(me);
583	ii->i = i;
584	return ((PyObject *)ii);
585	}
586
587	PyObject gmapmeth_clear(PyObject me, PyObject *arg)
588	{
589	PyObject i = 0, k = 0, *rc = 0;
590
591	if (!PyArg_ParseTuple(arg, ":clear") \|\|
592	(i = PyObject_GetIter(me)) == 0)
593	goto end;
594	while ((k = PyIter_Next(i)) != 0) {
595	PyObject_DelItem(me, k);
596	Py_DECREF(k);
597	}
598	if (PyErr_Occurred()) goto end;
599	rc = me; Py_INCREF(me);
600	end:
601	Py_XDECREF(i);
602	return (rc);
603	}
604
605	static char *def_kwlist[] = { "key", "default", 0 };
606
607	PyObject gmapmeth_get(PyObject me, PyObject arg, PyObject kw)
608	{
609	PyObject k, def = Py_None, *v;
610
611	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
612	return (0);
613	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
614	PyErr_Clear();
615	RETURN_OBJ(def);
616	}
617
618	PyObject gmapmeth_setdefault(PyObject me, PyObject arg, PyObject kw)
619	{
620	PyObject k, def = Py_None, *v;
621
622	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
623	def_kwlist, &k, &def))
624	return (0);
625	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
626	PyErr_Clear();
627	if (PyObject_SetItem(me, k, def)) return (0);
628	RETURN_OBJ(def);
629	}
630
631	PyObject gmapmeth_pop(PyObject me, PyObject arg, PyObject kw)
632	{
633	PyObject k, def = 0, *v;
634
635	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
636	return (0);
637	if ((v = PyObject_GetItem(me, k)) != 0) {
638	PyObject_DelItem(me, k);
639	return (v);
640	}
641	PyErr_Clear();
642	RETURN_OBJ(def);
643	}
644
645	PyObject gmapmeth_update(PyObject me, PyObject *arg)
646	{
647	PyObject map, i = 0, k, v, *rc = 0;
648	int err = 0;
649
650	if (!PyArg_ParseTuple(arg, "O:update", &map) \|\|
651	(i = PyObject_GetIter(map)) == 0)
652	goto end;
653	while ((k = PyIter_Next(i)) != 0) {
654	if ((v = PyObject_GetItem(map, k)) == 0 \|\|
655	PyObject_SetItem(me, k, v))
656	err = -1;
657	Py_DECREF(k); Py_XDECREF(v);
658	if (err) goto end;
659	}
660	if (PyErr_Occurred()) goto end;
661	rc = me; Py_INCREF(me);
662	end:
663	Py_XDECREF(i);
664	return (rc);
665	}
666
667	PyObject gmapmeth_popitem(PyObject me, PyObject *arg)
668	{
669	PyObject i = 0, k = 0, v = 0, rc = 0;
670
671	if (!PyArg_ParseTuple(arg, ":popitem") \|\|
672	(i = PyObject_GetIter(me)))
673	goto end;
674	if ((k = PyIter_Next(i)) == 0) {
675	if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
676	goto end;
677	}
678	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
679	PyObject_DelItem(me, k))
680	goto end;
681	rc = Py_BuildValue("(OO)", k, v);
682	end:
683	Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
684	return (rc);
685	}
686
687	PyMethodDef gmap_pymethods[] = {
688	GMAP_METHODS
689	{ 0 }
690	};
691
692	/----- Initialization ----------------------------------------------------/
693
8ca23175	694	void util_pyinit(void)
68ec53f3	695	{
0156e402	696	modname = PyString_FromString("catacomb");
68ec53f3 MW	697	INITTYPE(itemiter, root);
	698	INITTYPE(valiter, root);
	699	}
	700
8ca23175	701	void util_pyinsert(PyObject *mod)
68ec53f3 MW	702	{
	703	INSERT("ItemIter", itemiter_pytype);
	704	INSERT("ValueIter", valiter_pytype);
	705	}
	706
	707	/----- That's all, folks -------------------------------------------------/