.

bigfile/_bigfile.c

@@ -953,6 +953,18 @@ pyfileh_open(PyObject *pyfile0, PyObject *args)
 }
 
 
+static void
+pyfile_dealloc(PyObject *pyfile0)
+{
+    PyBigFile  *pyfile = container_of(pyfile0, PyBigFile, pyobj);
+
+    pyfile->blkmmap_ops = NULL;
+    Py_CLEAR(pyfile->blkmmapper_pycapsule);
+
+    pyfile->pyobj.ob_type->tp_free(&pyfile->pyobj);
+}
+
+
 static PyObject *
 pyfile_new(PyTypeObject *type, PyObject *args, PyObject *kw)
 {
@@ -1014,7 +1026,7 @@ static PyTypeObject PyBigFile_Type = {
     .tp_flags           = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
     .tp_methods         = pyfile_methods,
     .tp_members         = pyfile_members,
-    .tp_dealloc         = NULL, // XXX
+    .tp_dealloc         = pyfile_dealloc,
     .tp_new             = pyfile_new,
     .tp_doc             = "Base class for creating BigFile(s)\n\nTODO describe",    // XXX
 };