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

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

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

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

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

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

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

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

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

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

static const PyTypeObject emptytype = { 0 };

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

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@ */
};

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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