8000 gh-103092: Convert some `_ctypes` metatypes to heap types by aisk · Pull Request #113620 · python/cpython · GitHub
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gh-103092: Convert some _ctypes metatypes to heap types #113620

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Merged
merged 18 commits into from
Jan 18, 2024
Merged

gh-103092: Convert some _ctypes metatypes to heap types #113620

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d5a196d
convert PyCSimpleType_Type to heap type
aisk Dec 22, 2023
78acadf
turn all meta type to heap type
aisk Jan 1, 2024
799494d
simplify the slots and spec names
aisk Jan 1, 2024
ad3e1ec
update the traverse function
aisk Jan 1, 2024
55d9fc4
fix codes ident
aisk Jan 1, 2024
fc91804
remove unused CDataType_as_sequence
aisk Jan 1, 2024
d1b9652
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
5bfea09
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
3b661b7
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
748d18c
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
7744075
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
abe4c3f
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
04cf63f
Update Modules/_ctypes/_ctypes.c
aisk Jan 3, 2024
96194a1
re-order the metatypes in ctypes.h
aisk Jan 3, 2024
1877f7b
fix memory leak
aisk Jan 4, 2024
c0b333b
Merge branch 'main' into ctypes-heap-types
erlend-aasland Jan 9, 2024
bfa771b
Merge branch 'main' into ctypes-heap-types
erlend-aasland Jan 9, 2024
1c09a0c
Using traverse / clear slot function from CDataType
aisk Jan 13, 2024
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turn all meta type to heap type
  • Loading branch information
@aisk
aisk committed Jan 1, 2024
commit 78acadfe5e855c4874b639176c89e3e8d3ce06dc
314 changes: 101 additions & 213 deletions Modules/_ctypes/_ctypes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -903,8 +903,12 @@ static int
CDataType_traverse(PyTypeObject *self, visitproc visit, void *arg)
{
StgDictObject *dict = PyType_stgdict((PyObject *)self);
if (dict)
if (dict) {
Py_VISIT(dict->proto);
}
if (!(self->tp_base->tp_flags & Py_TPFLAGS_HEAPTYPE)) {
Py_VISIT(Py_TYPE(self));
}
return PyType_Type.tp_traverse((PyObject *)self, visit, arg);
}

Expand Down Expand Up @@ -935,91 +939,41 @@ UnionType_setattro(PyObject *self, PyObject *key, PyObject *value)
return 0;
}

static PyType_Slot pycstruct_type_type_slots[] = {
{Py_sq_repeat, CDataType_repeat},
{Py_tp_setattro, PyCStructType_setattro},
{Py_tp_doc, PyDoc_STR("metatype for the CData Objects")},
{Py_tp_traverse, CDataType_traverse},
{Py_tp_clear, CDataType_clear},
{Py_tp_methods, CDataType_methods},
{Py_tp_new, PyCStructType_new},
{0, NULL},
};

PyTypeObject PyCStructType_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes.PyCStructType", /* tp_name */
0, /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
0, /* tp_repr */
0, /* tp_as_number */
&CDataType_as_sequence, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
PyCStructType_setattro, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
PyDoc_STR("metatype for the CData Objects"), /* tp_doc */
(traverseproc)CDataType_traverse, /* tp_traverse */
(inquiry)CDataType_clear, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
CDataType_methods, /* 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 */
0, /* tp_alloc */
PyCStructType_new, /* tp_new */
0, /* tp_free */
PyType_Spec pycstruct_type_type_spec = {
.name = "_ctypes.PyCStructType",
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = pycstruct_type_type_slots,
};

static PyTypeObject UnionType_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes.UnionType", /* tp_name */
0, /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
0, /* tp_repr */
0, /* tp_as_number */
&CDataType_as_sequence, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
UnionType_setattro, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
PyDoc_STR("metatype for the CData Objects"), /* tp_doc */
(traverseproc)CDataType_traverse, /* tp_traverse */
(inquiry)CDataType_clear, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
CDataType_methods, /* 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 */
0, /* tp_alloc */
UnionType_new, /* tp_new */
0, /* tp_free */
static PyType_Slot union_type_type_slots[] = {
{Py_sq_repeat, CDataType_repeat},
{Py_tp_setattro, UnionType_setattro},
{Py_tp_doc, PyDoc_STR("metatype for the Union Objects")},
{Py_tp_traverse, CDataType_traverse},
{Py_tp_clear, CDataType_clear},
{Py_tp_methods, CDataType_methods},
{Py_tp_new, UnionType_new},
{0, NULL},
};

static PyType_Spec union_type_type_spec = {
.name = "_ctypes.UnionType",
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = union_type_type_slots,
};

/******************************************************************/

Expand Down Expand Up @@ -1234,46 +1188,21 @@ static PyMethodDef PyCPointerType_methods[] = {
{ NULL, NULL },
};

PyTypeObject PyCPointerType_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes.PyCPointerType", /* tp_name */
0, /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
0, /* tp_repr */
0, /* tp_as_number */
&CDataType_as_sequence, /* 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 | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
PyDoc_STR("metatype for the Pointer Objects"), /* tp_doc */
(traverseproc)CDataType_traverse, /* tp_traverse */
(inquiry)CDataType_clear, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
PyCPointerType_methods, /* 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 */
0, /* tp_alloc */
PyCPointerType_new, /* tp_new */
0, /* tp_free */
static PyType_Slot pycpointer_type_type_slots[] = {
{Py_sq_repeat, CDataType_repeat},
{Py_tp_doc, PyDoc_STR("metatype for the Pointer Objects")},
{Py_tp_traverse, CDataType_traverse},
{Py_tp_clear, CDataType_clear},
{Py_tp_methods, PyCPointerType_methods},
{Py_tp_new, PyCPointerType_new},
{0, NULL},
};

static PyType_Spec pycpointer_type_type_spec = {
.name = "_ctypes.PyCPointerType",
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = pycpointer_type_type_slots,
};


Expand Down Expand Up @@ -1606,48 +1535,28 @@ PyCArrayType_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
return NULL;
}

PyTypeObject PyCArrayType_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes.PyCArrayType", /* tp_name */
0, /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
0, /* tp_repr */
0, /* tp_as_number */
&CDataType_as_sequence, /* 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 | Py_TPFLAGS_BASETYPE, /* tp_flags */
PyDoc_STR("metatype for the Array Objects"), /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
CDataType_methods, /* 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 */
0, /* tp_alloc */
PyCArrayType_new, /* tp_new */
0, /* tp_free */
static int
PyCArrayType_traverse(PyTypeObject *self, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(self));
return 0;
}

static PyType_Slot pycarray_type_type_slots[] = {
{Py_sq_repeat, CDataType_repeat},
{Py_tp_doc, PyDoc_STR("metatype for the Array Objects")},
{Py_tp_traverse, PyCArrayType_traverse},
{Py_tp_methods, CDataType_methods},
{Py_tp_new, PyCArrayType_new},
{0, NULL},
};

static PyType_Spec pycarray_type_type_spec = {
.name = "_ctypes.PyCArrayType",
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = pycarray_type_type_slots,
};

/******************************************************************/
/*
Expand Down Expand Up @@ -2557,46 +2466,21 @@ PyCFuncPtrType_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
return (PyObject *)result;
}

PyTypeObject PyCFuncPtrType_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"_ctypes.PyCFuncPtrType", /* tp_name */
0, /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
0, /* tp_repr */
0, /* tp_as_number */
&CDataType_as_sequence, /* 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 | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /* tp_flags */
PyDoc_STR("metatype for C function pointers"), /* tp_doc */
(traverseproc)CDataType_traverse, /* tp_traverse */
(inquiry)CDataType_clear, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
CDataType_methods, /* 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 */
0, /* tp_alloc */
PyCFuncPtrType_new, /* tp_new */
0, /* tp_free */
static PyType_Slot pycfunc_ptr_type_type_slots[] = {
{Py_sq_repeat, CDataType_repeat},
{Py_tp_doc, PyDoc_STR("metatype for C function pointers")},
{Py_tp_traverse, CDataType_traverse},
{Py_tp_clear, CDataType_clear},
{Py_tp_methods, CDataType_methods},
{Py_tp_new, PyCFuncPtrType_new},
{0, NULL},
};

static PyType_Spec pycfunc_ptr_type_type_spec = {
.name = "_ctypes.PyCFuncPtrType",
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = pycfunc_ptr_type_type_slots,
};


Expand Down Expand Up @@ -4863,7 +4747,8 @@ PyCArrayType_from_ctype(PyObject *itemtype, Py_ssize_t length)
((PyTypeObject *)itemtype)->tp_name, (long)length);
#endif

result = PyObject_CallFunction((PyObject *)&PyCArrayType_Type,
ctypes_state *st = GLOBAL_STATE();
result = PyObject_CallFunction((PyObject *)st->PyCArrayType_Type,
"s(O){s:n,s:O}",
name,
&PyCArray_Type,
Expand Down Expand Up @@ -5672,26 +5557,29 @@ _ctypes_add_types(PyObject *mod)
*
* Metaclasses
*/
TYPE_READY_BASE(&PyCStructType_Type, &PyType_Type);
TYPE_READY_BASE(&UnionType_Type, &PyType_Type);
TYPE_READY_BASE(&PyCPointerType_Type, &PyType_Type);
TYPE_READY_BASE(&PyCArrayType_Type, &PyType_Type);
// TYPE_READY_BASE(&PyCSimpleType_Type, &PyType_Type);
CREATE_TYPE(mod, st->PyCStructType_Type, &pycstruct_type_type_spec,
&PyType_Type);
CREATE_TYPE(mod, st->UnionType_Type, &union_type_type_spec, &PyType_Type);
CREATE_TYPE(mod, st->PyCPointerType_Type, &pycpointer_type_type_spec,
&PyType_Type);
CREATE_TYPE(mod, st->PyCArrayType_Type, &pycarray_type_type_spec,
&PyType_Type);
CREATE_TYPE(mod, st->PyCSimpleType_Type, &pycsimple_type_type_spec,
&PyType_Type);
TYPE_READY_BASE(&PyCFuncPtrType_Type, &PyType_Type);
CREATE_TYPE(mod, st->PyCFuncPtrType_Type, &pycfunc_ptr_type_type_spec,
&PyType_Type);

/*************************************************
*
* Classes using a custom metaclass
*/

MOD_ADD_TYPE(&Struct_Type, &PyCStructType_Type, &PyCData_Type);
MOD_ADD_TYPE(&Union_Type, &UnionType_Type, &PyCData_Type);
MOD_ADD_TYPE(&PyCPointer_Type, &PyCPointerType_Type, &PyCData_Type);
MOD_ADD_TYPE(&PyCArray_Type, &PyCArrayType_Type, &PyCData_Type);
MOD_ADD_TYPE(&Struct_Type, st->PyCStructType_Type, &PyCData_Type);
MOD_ADD_TYPE(&Union_Type, st->UnionType_Type, &PyCData_Type);
MOD_ADD_TYPE(&PyCPointer_Type, st->PyCPointerType_Type, &PyCData_Type);
MOD_ADD_TYPE(&PyCArray_Type, st->PyCArrayType_Type, &PyCData_Type);
MOD_ADD_TYPE(&Simple_Type, st->PyCSimpleType_Type, &PyCData_Type);
MOD_ADD_TYPE(&PyCFuncPtr_Type, &PyCFuncPtrType_Type, &PyCData_Type);
MOD_ADD_TYPE(&PyCFuncPtr_Type, st->PyCFuncPtrType_Type, &PyCData_Type);

/*************************************************
*
Expand Down
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