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bpo-42972: Fully support GC for hashlib heap types (GH-26374)

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Erlend Egeberg Aasland 2021-05-27 09:48:19 +02:00 • committed by GitHub
parent 59af59c2df
commit 6ef5ba391d
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4 changed files with 69 additions and 16 deletions
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17
Modules/md5module.c
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@ -333,16 +333,25 @@ md5_get_state(PyObject *module)
static MD5object *
newMD5object(MD5State * st)
{
return (MD5object *)PyObject_New(MD5object, st->md5_type);
MD5object *md5 = (MD5object *)PyObject_GC_New(MD5object, st->md5_type);
PyObject_GC_Track(md5);
return md5;
}
/* Internal methods for a hash object */
static int
MD5_traverse(PyObject *ptr, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(ptr));
return 0;
}
static void
MD5_dealloc(PyObject *ptr)
{
PyTypeObject *tp = Py_TYPE(ptr);
PyObject_Free(ptr);
PyObject_GC_UnTrack(ptr);
PyObject_GC_Del(ptr);
Py_DECREF(tp);
}
@ -478,13 +487,15 @@ static PyType_Slot md5_type_slots[] = {
{Py_tp_dealloc, MD5_dealloc},
{Py_tp_methods, MD5_methods},
{Py_tp_getset, MD5_getseters},
{Py_tp_traverse, MD5_traverse},
{0,0}
};
static PyType_Spec md5_type_spec = {
.name = "_md5.md5",
.basicsize = sizeof(MD5object),
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION | Py_TPFLAGS_IMMUTABLETYPE,
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION |
Py_TPFLAGS_IMMUTABLETYPE | Py_TPFLAGS_HAVE_GC),
.slots = md5_type_slots
};