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

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Merged
tiran merged 4 commits into from
May 27, 2021
Merged

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

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186562f
bpo-42972: Fully support GC for sha256 heap types
May 25, 2021
b2817ab
bpo-42972: Fully support GC for sha512 heap types
May 25, 2021
b381665
bpo-42972: Fully support GC for sha1 heap types
May 25, 2021
49226dd
bpo-42972: Fully support GC for md5 heap types
May 25, 2021
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bpo-42972: Fully support GC for sha512 heap types
  • Loading branch information
Erlend E. Aasland
Erlend E. Aasland committed May 25, 2021
commit b2817ab032de53cf6e2ef28c56fa5d84dc7e06a1
25 changes: 20 additions & 5 deletions Modules/sha512module.c
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Original file line number Diff line number Diff line change
Expand Up @@ -438,22 +438,33 @@ sha512_get_state(PyObject *module)
static SHAobject *
newSHA384object(SHA512State *st)
{
return (SHAobject *)PyObject_New(SHAobject, st->sha384_type);
SHAobject *sha = (SHAobject *)PyObject_GC_New(SHAobject, st->sha384_type);
PyObject_GC_Track(sha);
return sha;
}

static SHAobject *
newSHA512object(SHA512State *st)
{
return (SHAobject *)PyObject_New(SHAobject, st->sha512_type);
SHAobject *sha = (SHAobject *)PyObject_GC_New(SHAobject, st->sha512_type);
PyObject_GC_Track(sha);
return sha;
}

/* Internal methods for a hash object */
static int
SHA_traverse(PyObject *ptr, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(ptr));
return 0;
}

static void
SHA512_dealloc(PyObject *ptr)
{
PyTypeObject *tp = Py_TYPE(ptr);
PyObject_Free(ptr);
PyObject_GC_UnTrack(ptr);
PyObject_GC_Del(ptr);
Py_DECREF(tp);
}

Expand Down Expand Up @@ -596,13 +607,15 @@ static PyType_Slot sha512_sha384_type_slots[] = {
{Py_tp_methods, SHA_methods},
{Py_tp_members, SHA_members},
{Py_tp_getset, SHA_getseters},
{Py_tp_traverse, SHA_traverse},
{0,0}
};

static PyType_Spec sha512_sha384_type_spec = {
.name = "_sha512.sha384",
.basicsize = sizeof(SHAobject),
.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 = sha512_sha384_type_slots
};

Expand All @@ -611,6 +624,7 @@ static PyType_Slot sha512_sha512_type_slots[] = {
{Py_tp_methods, SHA_methods},
{Py_tp_members, SHA_members},
{Py_tp_getset, SHA_getseters},
{Py_tp_traverse, SHA_traverse},
{0,0}
};

Expand All @@ -619,7 +633,8 @@ static PyType_Slot sha512_sha512_type_slots[] = {
static PyType_Spec sha512_sha512_type_spec = {
.name = "_sha512.sha512",
.basicsize = sizeof(SHAobject),
.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 = sha512_sha512_type_slots
};

Expand Down