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bpo-41861: Convert _sqlite3 CursorType and ConnectionType to heap types (GH-22478)

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Erlend Egeberg Aasland 2020-10-01 16:03:21 +02:00 • committed by GitHub
parent 9031bd4fa4
commit 256e54acdb
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6 changed files with 74 additions and 102 deletions
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76
Modules/_sqlite/cursor.c
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@ -33,7 +33,7 @@ static int pysqlite_cursor_init(pysqlite_Cursor* self, PyObject* args, PyObject*
{
pysqlite_Connection* connection;
if (!PyArg_ParseTuple(args, "O!", &pysqlite_ConnectionType, &connection))
if (!PyArg_ParseTuple(args, "O!", pysqlite_ConnectionType, &connection))
{
return -1;
}
@ -74,6 +74,8 @@ static int pysqlite_cursor_init(pysqlite_Cursor* self, PyObject* args, PyObject*
static void pysqlite_cursor_dealloc(pysqlite_Cursor* self)
{
PyTypeObject *tp = Py_TYPE(self);
/* Reset the statement if the user has not closed the cursor */
if (self->statement) {
pysqlite_statement_reset(self->statement);
@ -91,7 +93,8 @@ static void pysqlite_cursor_dealloc(pysqlite_Cursor* self)
PyObject_ClearWeakRefs((PyObject*)self);
}
Py_TYPE(self)->tp_free((PyObject*)self);
tp->tp_free(self);
Py_DECREF(tp);
}
static PyObject *
@ -898,56 +901,39 @@ static struct PyMemberDef cursor_members[] =
{"lastrowid", T_OBJECT, offsetof(pysqlite_Cursor, lastrowid), READONLY},
{"rowcount", T_LONG, offsetof(pysqlite_Cursor, rowcount), READONLY},
{"row_factory", T_OBJECT, offsetof(pysqlite_Cursor, row_factory), 0},
{"__weaklistoffset__", T_PYSSIZET, offsetof(pysqlite_Cursor, in_weakreflist), READONLY},
{NULL}
};
static const char cursor_doc[] =
PyDoc_STR("SQLite database cursor class.");
PyTypeObject pysqlite_CursorType = {
PyVarObject_HEAD_INIT(NULL, 0)
MODULE_NAME ".Cursor", /* tp_name */
sizeof(pysqlite_Cursor), /* tp_basicsize */
0, /* tp_itemsize */
(destructor)pysqlite_cursor_dealloc, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_as_async */
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|Py_TPFLAGS_BASETYPE, /* tp_flags */
cursor_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
offsetof(pysqlite_Cursor, in_weakreflist), /* tp_weaklistoffset */
PyObject_SelfIter, /* tp_iter */
(iternextfunc)pysqlite_cursor_iternext, /* tp_iternext */
cursor_methods, /* tp_methods */
cursor_members, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
(initproc)pysqlite_cursor_init, /* tp_init */
0, /* tp_alloc */
0, /* tp_new */
0 /* tp_free */
static PyType_Slot cursor_slots[] = {
{Py_tp_dealloc, pysqlite_cursor_dealloc},
{Py_tp_doc, (void *)cursor_doc},
{Py_tp_iter, PyObject_SelfIter},
{Py_tp_iternext, pysqlite_cursor_iternext},
{Py_tp_methods, cursor_methods},
{Py_tp_members, cursor_members},
{Py_tp_new, PyType_GenericNew},
{Py_tp_init, pysqlite_cursor_init},
{0, NULL},
};
extern int pysqlite_cursor_setup_types(void)
static PyType_Spec cursor_spec = {
.name = MODULE_NAME ".Cursor",
.basicsize = sizeof(pysqlite_Cursor),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.slots = cursor_slots,
};
PyTypeObject *pysqlite_CursorType = NULL;
extern int pysqlite_cursor_setup_types(PyObject *module)
{
pysqlite_CursorType.tp_new = PyType_GenericNew;
return PyType_Ready(&pysqlite_CursorType);
pysqlite_CursorType = (PyTypeObject *)PyType_FromModuleAndSpec(module, &cursor_spec, NULL);
if (pysqlite_CursorType == NULL) {
return -1;
}
return 0;
}