8000 bpo-42972: Fully support GC for hashlib heap types (GH-26374) by erlend-aasland · Pull Request #26374 · python/cpython · GitHub
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bpo-42972: Fully support GC for hashlib heap types (GH-26374) #26374

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Merged
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 sha256 heap types
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Erlend E. Aasland committed May 25, 2021
commit 186562fd4563bf63f8f642dea39be3bb07a8a3bf
26 changes: 21 additions & 5 deletions Modules/sha256module.c
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Original file line number Diff line num EF80 ber Diff line change
Expand Up @@ -382,22 +382,35 @@ sha_final(unsigned char digest[SHA_DIGESTSIZE], SHAobject *sha_info)
static SHAobject *
newSHA224object(_sha256_state *state)
{
return (SHAobject *)PyObject_New(SHAobject, state->sha224_type);
SHAobject *sha = (SHAobject *)PyObject_GC_New(SHAobject,
state->sha224_type);
PyObject_GC_Track(sha);
return sha;
}

static SHAobject *
newSHA256object(_sha256_state *state)
{
return (SHAobject *)PyObject_New(SHAobject, state->sha256_type);
SHAobject *sha = (SHAobject *)PyObject_GC_New(SHAobject,
state->sha256_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
SHA_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 @@ -538,20 +551,23 @@ static PyType_Slot sha256_types_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 sha224_type_spec = {
.name = "_sha256.sha224",
.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 = sha256_types_slots
};

static PyType_Spec sha256_type_spec = {
.name = "_sha256.sha256",
.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 = sha256_types_slots
};

Expand Down
0