[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));
}

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 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 *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 MW	44
	45	PyObject *getbool(int b)
	46	{
	47	if (b) RETURN_TRUE;
	48	else RETURN_FALSE;
	49	}
	50
	51	PyObject abstract_pynew(PyTypeObject ty, PyObject arg, PyObject kw)
	52	{
	53	PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
	54	return (0);
	55	}
	56
	57	int convulong(PyObject o, void pp)
	58	{
	59	long i;
	60	unsigned long *p = pp;
	61	PyObject *t;
	62
c0ddcbac	63	if (!o) VALERR("can't delete");
68ec53f3 MW	64	if (PyInt_Check(o)) {
68ec53f3 MW	65	i = PyInt_AS_LONG(o);
799dffb2	66	if (i < 0) VALERR("must be nonnegative");
68ec53f3 MW	67	*p = i;
	68	} else {
	69	if ((t = PyNumber_Long(o)) == 0) goto end;
	70	*p = PyLong_AsUnsignedLong(t);
	71	Py_DECREF(t);
	72	if (PyErr_Occurred()) goto end;
	73	}
	74	return (1);
	75	end:
	76	return (0);
	77	}
	78
	79	#define CONVU_(n) \
	80	int convu##n(PyObject o, void pp) \
	81	{ \
	82	unsigned long u; \
	83	uint##n *p = pp; \
	84	\
	85	if (!convulong(o, &u)) goto end; \
799dffb2	86	if (u > MASK##n) VALERR("out of range"); \
68ec53f3 MW	87	*p = u; \
	88	return (1); \
	89	end: \
	90	return (0); \
	91	}
	92	DOUINTSZ(CONVU_)
	93
	94	int convuint(PyObject o, void pp)
	95	{
	96	unsigned long u;
	97	unsigned *p = pp;
	98
	99	if (!convulong(o, &u)) goto end;
799dffb2	100	if (u > UINT_MAX) VALERR("out of range");
68ec53f3 MW	101	*p = u;
	102	return (1);
	103	end:
	104	return (0);
	105	}
	106
	107	int convmpw(PyObject o, void pp)
	108	{
	109	unsigned long u;
	110	unsigned *p = pp;
	111
	112	if (!convulong(o, &u)) goto end;
799dffb2	113	if (u > MPW_MAX) VALERR("out of range");
68ec53f3 MW	114	*p = u;
	115	return (1);
	116	end:
	117	return (0);
	118	}
	119
	120	int convszt(PyObject o, void pp)
	121	{
	122	unsigned long u;
	123	size_t *p = pp;
	124
	125	if (!convulong(o, &u)) goto end;
799dffb2	126	if (u > ~(size_t)0) VALERR("out of range");
68ec53f3 MW	127	*p = u;
	128	return (1);
	129	end:
	130	return (0);
	131	}
	132
	133	int convbool(PyObject o, void pp)
	134	{
c0ddcbac	135	if (!o) VALERR("can't delete");
68ec53f3 MW	136	(int )pp = PyObject_IsTrue(o);
68ec53f3 MW	137	return (1);
c0ddcbac MW	138	end:
c0ddcbac MW	139	return (0);
68ec53f3 MW	140	}
	141
	142	/----- Type messing ------------------------------------------------------/
	143
	144	static const PyTypeObject emptytype = { 0 };
	145
	146	void newtype(PyTypeObject metaty,
	147	const PyTypeObject *skel,
	148	const char *name)
	149	{
	150	PyHeapTypeObject *ty =
	151	(PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
	152	if (!skel) skel = &emptytype;
	153	memcpy(ty, skel, sizeof(*skel));
d4a9e7e7	154	if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base);
68ec53f3	155	#define COPY(blah) do { \
d4a9e7e7	156	if (ty->ht_type.tp_as_##blah) { \
68ec53f3	157	memcpy(&ty->as_##blah, \
d4a9e7e7	158	ty->ht_type.tp_as_##blah, \
68ec53f3	159	sizeof(ty->as_##blah)); \
d4a9e7e7	160	ty->ht_type.tp_as_##blah = &ty->as_##blah; \
68ec53f3 MW	161	} \
	162	} while (0)
	163	COPY(number);
	164	COPY(sequence);
	165	COPY(mapping);
	166	COPY(buffer);
	167	#undef COPY
	168	if (name)
d4a9e7e7 MW	169	ty->ht_name = PyString_FromString(name);
	170	else if (ty->ht_type.tp_name)
	171	ty->ht_name = PyString_FromString(ty->ht_type.tp_name);
	172	if (ty->ht_name)
	173	ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name);
f60b520f	174	DISCARD(PyObject_INIT(&ty->ht_type, metaty));
68ec53f3 MW	175	Py_INCREF(metaty);
	176	return (ty);
	177	}
	178
0156e402 MW	179	void typeready(PyTypeObject *ty)
	180	{
	181	PyType_Ready(ty);
	182	PyDict_SetItemString(ty->tp_dict, "__module__", modname);
	183	}
	184
68ec53f3 MW	185	PyTypeObject inittype(PyTypeObject tyskel)
	186	{
	187	PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
	188	ty->tp_flags \|= Py_TPFLAGS_HEAPTYPE;
0156e402	189	typeready(ty);
68ec53f3 MW	190	return (ty);
	191	}
	192
	193	/----- Constants ---------------------------------------------------------/
	194
	195	void setconstants(PyObject mod, const struct nameval c)
	196	{
	197	PyObject *x;
	198
	199	while (c->name) {
	200	if (c->value > LONG_MAX)
	201	x = PyLong_FromUnsignedLong(c->value);
	202	else
	203	x = PyInt_FromLong(c->value);
	204	PyModule_AddObject(mod, (/unconst/ char *)c->name, x);
	205	c++;
	206	}
	207	}
	208
	209	/----- Building method tables --------------------------------------------/
	210
	211	DA_DECL(method_v, PyMethodDef);
	212	static method_v global_pymethods = DA_INIT;
	213	void addmethods(const PyMethodDef *m)
	214	{
	215	size_t n;
	216
	217	for (n = 0; m[n].ml_name; n++);
	218	DA_ENSURE(&global_pymethods, n);
	219	memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
	220	m, n * sizeof(*m));
	221	DA_EXTEND(&global_pymethods, n);
	222	}
	223
	224	PyMethodDef *donemethods(void)
	225	{
	226	static const PyMethodDef mzero = { 0 };
	227	DA_PUSH(&global_pymethods, mzero);
	228	return (DA(&global_pymethods));
	229	}
	230
	231	/----- Exceptions --------------------------------------------------------/
	232
	233	PyObject * mkexc(PyObject mod, PyObject base,
	234	const char name, PyMethodDef mm)
	235	{
	236	PyObject *nameobj = 0;
	237	PyObject *dict = 0;
	238	PyObject *exc = 0;
	239	PyObject *func = 0;
	240	PyObject *meth = 0;
	241
	242	if ((nameobj = PyString_FromFormat("%s.%s",
	243	PyModule_GetName(mod),
	244	name)) == 0 \|\|
	245	(dict = PyDict_New()) == 0 \|\|
	246	(exc = PyErr_NewException(PyString_AS_STRING(nameobj),
	247	base, dict)) == 0)
	248	goto fail;
	249
	250	if (mm) {
	251	while (mm->ml_name) {
	252	if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 \|\|
	253	(meth = PyMethod_New(func, 0, exc)) == 0 \|\|
254	PyDict_SetItemString(dict, mm->ml_name, meth))
255	goto fail;
256	Py_DECREF(func); func = 0;
257	Py_DECREF(meth); meth = 0;
258	mm++;
259	}
260	}
261
262	done:
263	Py_XDECREF(nameobj);
264	Py_XDECREF(dict);
265	return (exc);
266
267	fail:
268	Py_XDECREF(exc);
269	Py_XDECREF(func);
270	Py_XDECREF(meth);
271	exc = 0;
272	goto done;
273	}
274
275	/----- Generic dictionary methods ----------------------------------------/
276
277	static PyTypeObject itemiter_pytype, valiter_pytype;
278
279	typedef struct iter_pyobj {
280	PyObject_HEAD
281	PyObject *map;
282	PyObject *i;
283	} iter_pyobj;
284	#define ITER_MAP(o) (((iter_pyobj *)(o))->map)
285	#define ITER_I(o) (((iter_pyobj *)(o))->i)
286
287	static void iter_pydealloc(PyObject *me)
288	{ Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
289
290	static PyObject itemiter_pynext(PyObject me)
291	{
292	PyObject k = 0, v = 0, *rc = 0;
0b1eafbf	293
68ec53f3 MW	294	if ((k = PyIter_Next(ITER_I(me))) != 0 &&
	295	(v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
	296	rc = Py_BuildValue("(OO)", k, v);
	297	Py_XDECREF(k); Py_XDECREF(v);
	298	return (rc);
	299	}
	300
	301	static PyTypeObject itemiter_pytype_skel = {
	302	PyObject_HEAD_INIT(0) 0, /* Header */
	303	"ItemIter", /* @tp_name@ */
	304	sizeof(iter_pyobj), /* @tp_basicsize@ */
	305	0, /* @tp_itemsize@ */
	306
	307	iter_pydealloc, /* @tp_dealloc@ */
	308	0, /* @tp_print@ */
	309	0, /* @tp_getattr@ */
	310	0, /* @tp_setattr@ */
	311	0, /* @tp_compare@ */
	312	0, /* @tp_repr@ */
	313	0, /* @tp_as_number@ */
	314	0, /* @tp_as_sequence@ */
	315	0, /* @tp_as_mapping@ */
	316	0, /* @tp_hash@ */
	317	0, /* @tp_call@ */
	318	0, /* @tp_str@ */
	319	0, /* @tp_getattro@ */
	320	0, /* @tp_setattro@ */
	321	0, /* @tp_as_buffer@ */
	322	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	323	Py_TPFLAGS_BASETYPE,
	324
	325	/* @tp_doc@ */
	326	"Iterates over the items of a mapping.",
	327
	328	0, /* @tp_traverse@ */
	329	0, /* @tp_clear@ */
	330	0, /* @tp_richcompare@ */
	331	0, /* @tp_weaklistoffset@ */
	332	PyObject_SelfIter, /* @tp_iter@ */
	333	itemiter_pynext, /* @tp_iternext@ */
	334	0, /* @tp_methods@ */
	335	0, /* @tp_members@ */
	336	0, /* @tp_getset@ */
	337	0, /* @tp_base@ */
	338	0, /* @tp_dict@ */
	339	0, /* @tp_descr_get@ */
	340	0, /* @tp_descr_set@ */
	341	0, /* @tp_dictoffset@ */
	342	0, /* @tp_init@ */
	343	PyType_GenericAlloc, /* @tp_alloc@ */
	344	abstract_pynew, /* @tp_new@ */
	345	0, /* @tp_free@ */
	346	0 /* @tp_is_gc@ */
	347	};
	348
	349	static PyObject valiter_pynext(PyObject me)
	350	{
	351	PyObject k = 0, rc = 0;
0b1eafbf	352
68ec53f3 MW	353	if ((k = PyIter_Next(ITER_I(me))) != 0)
	354	rc = PyObject_GetItem(ITER_MAP(me), k);
	355	Py_XDECREF(k);
	356	return (rc);
	357	}
	358
	359	static PyTypeObject valiter_pytype_skel = {
	360	PyObject_HEAD_INIT(0) 0, /* Header */
	361	"ValueIter", /* @tp_name@ */
	362	sizeof(iter_pyobj), /* @tp_basicsize@ */
	363	0, /* @tp_itemsize@ */
	364
	365	iter_pydealloc, /* @tp_dealloc@ */
	366	0, /* @tp_print@ */
	367	0, /* @tp_getattr@ */
	368	0, /* @tp_setattr@ */
	369	0, /* @tp_compare@ */
	370	0, /* @tp_repr@ */
	371	0, /* @tp_as_number@ */
	372	0, /* @tp_as_sequence@ */
	373	0, /* @tp_as_mapping@ */
	374	0, /* @tp_hash@ */
	375	0, /* @tp_call@ */
	376	0, /* @tp_str@ */
	377	0, /* @tp_getattro@ */
	378	0, /* @tp_setattro@ */
	379	0, /* @tp_as_buffer@ */
	380	Py_TPFLAGS_DEFAULT \| /* @tp_flags@ */
	381	Py_TPFLAGS_BASETYPE,
	382
	383	/* @tp_doc@ */
	384	"Iterates over the items of a mapping.",
	385
	386	0, /* @tp_traverse@ */
	387	0, /* @tp_clear@ */
	388	0, /* @tp_richcompare@ */
	389	0, /* @tp_weaklistoffset@ */
	390	PyObject_SelfIter, /* @tp_iter@ */
	391	valiter_pynext, /* @tp_iternext@ */
	392	0, /* @tp_methods@ */
	393	0, /* @tp_members@ */
	394	0, /* @tp_getset@ */
	395	0, /* @tp_base@ */
	396	0, /* @tp_dict@ */
	397	0, /* @tp_descr_get@ */
	398	0, /* @tp_descr_set@ */
	399	0, /* @tp_dictoffset@ */
	400	0, /* @tp_init@ */
	401	PyType_GenericAlloc, /* @tp_alloc@ */
	402	abstract_pynew, /* @tp_new@ */
	403	0, /* @tp_free@ */
	404	0 /* @tp_is_gc@ */
	405	};
	406
	407	PySequenceMethods gmap_pysequence = {
	408	0, /* @sq_length@ */
	409	0, /* @sq_concat@ */
	410	0, /* @sq_repeat@ */
	411	0, /* @sq_item@ */
	412	0, /* @sq_slice@ */
	413	0, /* @sq_ass_item@ */
	414	0, /* @sq_ass_slice@ */
	415	PyMapping_HasKey, /* @sq_contains@ */
	416	0, /* @sq_inplace_concat@ */
417	0 /* @sq_inplace_repeat@ */
0b1eafbf	418	};
68ec53f3	419
6f1a40f3	420	Py_ssize_t gmap_pysize(PyObject *me)
68ec53f3 MW	421	{
	422	PyObject i = 0, x = 0;
	423	int rc = -1;
	424	int n = 0;
	425
	426	if ((i = PyObject_GetIter(me)) == 0) goto done;
	427	while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
	428	if (PyErr_Occurred()) goto done;
	429	rc = n;
	430	done:
	431	Py_XDECREF(i); Py_XDECREF(x);
	432	return (rc);
	433	}
	434
	435	PyObject gmapmeth_has_key(PyObject me, PyObject *arg)
	436	{
	437	PyObject *k;
	438	if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
	439	return (getbool(PyMapping_HasKey(me, k)));
	440	}
	441
	442	PyObject gmapmeth_keys(PyObject me, PyObject *arg)
	443	{
	444	PyObject l = 0, i = 0, k, rc = 0;
	445	int err;
	446
	447	if (!PyArg_ParseTuple(arg, ":keys") \|\|
	448	(l = PyList_New(0)) == 0 \|\|
	449	(i = PyObject_GetIter(me)) == 0)
	450	goto done;
	451	while ((k = PyIter_Next(i)) != 0)
	452	{ err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
	453	if (PyErr_Occurred()) goto done;
	454	rc = l; l = 0;
	455	done:
	456	Py_XDECREF(l); Py_XDECREF(i);
	457	return (rc);
	458	}
	459
	460	PyObject gmapmeth_values(PyObject me, PyObject *arg)
	461	{
	462	PyObject l = 0, i = 0, k, v, *rc = 0;
	463	int err = 0;
	464
	465	if (!PyArg_ParseTuple(arg, ":values") \|\|
	466	(l = PyList_New(0)) == 0 \|\|
	467	(i = PyObject_GetIter(me)) == 0)
	468	goto done;
0b1eafbf	469	while ((k = PyIter_Next(i)) != 0) {
68ec53f3 MW	470	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	471	PyList_Append(l, v))
	472	err = -1;
	473	Py_DECREF(k); Py_XDECREF(v);
	474	if (err) goto done;
	475	}
	476	if (PyErr_Occurred()) goto done;
	477	rc = l; l = 0;
	478	done:
	479	Py_XDECREF(l); Py_XDECREF(i);
	480	return (rc);
	481	}
	482
	483	PyObject gmapmeth_items(PyObject me, PyObject *arg)
	484	{
	485	PyObject l = 0, i = 0, k, v, z, rc = 0;
	486	int err = 0;
	487
	488	if (!PyArg_ParseTuple(arg, ":items") \|\|
	489	(l = PyList_New(0)) == 0 \|\|
	490	(i = PyObject_GetIter(me)) == 0)
	491	goto done;
	492	while ((k = PyIter_Next(i)) != 0) {
	493	z = 0;
	494	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
	495	(z = Py_BuildValue("(OO)", k, v)) == 0 \|\|
	496	PyList_Append(l, z))
	497	err = -1;
	498	Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
	499	if (err) goto done;
	500	}
	501	if (PyErr_Occurred()) goto done;
	502	rc = l; l = 0;
	503	done:
	504	Py_XDECREF(l); Py_XDECREF(i);
	505	return (rc);
	506	}
	507
	508	PyObject gmapmeth_iterkeys(PyObject me, PyObject *arg)
	509	{
	510	if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
	511	return (PyObject_GetIter(me));
	512	}
	513
	514	PyObject gmapmeth_itervalues(PyObject me, PyObject *arg)
	515	{
	516	PyObject *i;
	517	iter_pyobj *ii;
	518
	519	if (!PyArg_ParseTuple(arg, ":itervalues") \|\|
	520	(i = PyObject_GetIter(me)) == 0)
	521	return (0);
	522	ii = PyObject_NEW(iter_pyobj, valiter_pytype);
	523	ii->map = me; Py_INCREF(me);
	524	ii->i = i;
	525	return ((PyObject *)ii);
	526	}
	527
	528	PyObject gmapmeth_iteritems(PyObject me, PyObject *arg)
	529	{
	530	PyObject *i;
	531	iter_pyobj *ii;
	532
	533	if (!PyArg_ParseTuple(arg, ":iteritems") \|\|
534	(i = PyObject_GetIter(me)) == 0)
535	return (0);
536	ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
537	ii->map = me; Py_INCREF(me);
538	ii->i = i;
539	return ((PyObject *)ii);
540	}
541
542	PyObject gmapmeth_clear(PyObject me, PyObject *arg)
543	{
544	PyObject i = 0, k = 0, *rc = 0;
545
546	if (!PyArg_ParseTuple(arg, ":clear") \|\|
547	(i = PyObject_GetIter(me)) == 0)
548	goto end;
549	while ((k = PyIter_Next(i)) != 0) {
550	PyObject_DelItem(me, k);
551	Py_DECREF(k);
552	}
553	if (PyErr_Occurred()) goto end;
554	rc = me; Py_INCREF(me);
555	end:
556	Py_XDECREF(i);
557	return (rc);
558	}
559
560	static char *def_kwlist[] = { "key", "default", 0 };
561
562	PyObject gmapmeth_get(PyObject me, PyObject arg, PyObject kw)
563	{
564	PyObject k, def = Py_None, *v;
565
566	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
567	return (0);
568	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
569	PyErr_Clear();
570	RETURN_OBJ(def);
571	}
572
573	PyObject gmapmeth_setdefault(PyObject me, PyObject arg, PyObject kw)
574	{
575	PyObject k, def = Py_None, *v;
576
577	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
578	def_kwlist, &k, &def))
579	return (0);
580	if ((v = PyObject_GetItem(me, k)) != 0) return (v);
581	PyErr_Clear();
582	if (PyObject_SetItem(me, k, def)) return (0);
583	RETURN_OBJ(def);
584	}
585
586	PyObject gmapmeth_pop(PyObject me, PyObject arg, PyObject kw)
587	{
588	PyObject k, def = 0, *v;
589
590	if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
591	return (0);
592	if ((v = PyObject_GetItem(me, k)) != 0) {
593	PyObject_DelItem(me, k);
594	return (v);
595	}
596	PyErr_Clear();
597	RETURN_OBJ(def);
598	}
599
600	PyObject gmapmeth_update(PyObject me, PyObject *arg)
601	{
602	PyObject map, i = 0, k, v, *rc = 0;
603	int err = 0;
604
605	if (!PyArg_ParseTuple(arg, "O:update", &map) \|\|
606	(i = PyObject_GetIter(map)) == 0)
607	goto end;
608	while ((k = PyIter_Next(i)) != 0) {
609	if ((v = PyObject_GetItem(map, k)) == 0 \|\|
610	PyObject_SetItem(me, k, v))
611	err = -1;
612	Py_DECREF(k); Py_XDECREF(v);
613	if (err) goto end;
614	}
615	if (PyErr_Occurred()) goto end;
616	rc = me; Py_INCREF(me);
617	end:
618	Py_XDECREF(i);
619	return (rc);
620	}
621
622	PyObject gmapmeth_popitem(PyObject me, PyObject *arg)
623	{
624	PyObject i = 0, k = 0, v = 0, rc = 0;
625
626	if (!PyArg_ParseTuple(arg, ":popitem") \|\|
627	(i = PyObject_GetIter(me)))
628	goto end;
629	if ((k = PyIter_Next(i)) == 0) {
630	if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
631	goto end;
632	}
633	if ((v = PyObject_GetItem(me, k)) == 0 \|\|
634	PyObject_DelItem(me, k))
635	goto end;
636	rc = Py_BuildValue("(OO)", k, v);
637	end:
638	Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
639	return (rc);
640	}
641
642	PyMethodDef gmap_pymethods[] = {
643	GMAP_METHODS
644	{ 0 }
645	};
646
647	/----- Initialization ----------------------------------------------------/
648
8ca23175	649	void util_pyinit(void)
68ec53f3	650	{
0156e402	651	modname = PyString_FromString("catacomb");
68ec53f3 MW	652	INITTYPE(itemiter, root);
	653	INITTYPE(valiter, root);
	654	}
	655
8ca23175	656	void util_pyinsert(PyObject *mod)
68ec53f3 MW	657	{
	658	INSERT("ItemIter", itemiter_pytype);
	659	INSERT("ValueIter", valiter_pytype);
	660	}
	661
	662	/----- That's all, folks -------------------------------------------------/