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[3.10] bpo-42972: Fully implement GC protocol for ssl heap types (GH-26370) by miss-islington · Pull Request #26399 · python/cpython · GitHub

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[3.10] bpo-42972: Fully implement GC protocol for ssl heap types (GH-26370) #26399

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Merged
vstinner merged 1 commit into from
May 27, 2021
Conversation 4 Commits 1 Checks 0 Files changed
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[3.10] bpo-42972: Fully implement GC protocol for ssl heap types (GH-26370) #26399

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73 changes: 45 additions & 28 deletions Modules/_ssl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -434,11 +434,11 @@ static PyType_Slot sslerror_type_slots[] = {
};

static PyType_Spec sslerror_type_spec = {
"ssl.SSLError",
sizeof(PyOSErrorObject),
0,
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_IMMUTABLETYPE,
sslerror_type_slots
.name = "ssl.SSLError",
.basicsize = sizeof(PyOSErrorObject),
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
Py_TPFLAGS_IMMUTABLETYPE | Py_TPFLAGS_HAVE_GC),
.slots = sslerror_type_slots
};

static void
Expand Down Expand Up @@ -789,7 +789,8 @@ newPySSLSocket(PySSLContext *sslctx, PySocketSockObject *sock,
SSL_CTX *ctx = sslctx->ctx;
_PySSLError err = { 0 };

self = PyObject_New(PySSLSocket, get_state_ctx(sslctx)->PySSLSocket_Type);
self = PyObject_GC_New(PySSLSocket,
get_state_ctx(sslctx)->PySSLSocket_Type);
if (self == NULL)
return NULL;

Expand Down Expand Up @@ -896,6 +897,8 @@ newPySSLSocket(PySSLContext *sslctx, PySocketSockObject *sock,
return NULL;
}
}

PyObject_GC_Track(self);
return self;
}

Expand Down Expand Up @@ -2169,6 +2172,7 @@ PySSL_traverse(PySSLSocket *self, visitproc visit, void *arg)
Py_VISIT(self->exc_type);
Py_VISIT(self->exc_value);
Py_VISIT(self->exc_tb);
Py_VISIT(Py_TYPE(self));
return 0;
}

Expand All @@ -2185,13 +2189,15 @@ static void
PySSL_dealloc(PySSLSocket *self)
{
PyTypeObject *tp = Py_TYPE(self);
if (self->ssl)
PyObject_GC_UnTrack(self);
if (self->ssl) {
SSL_free(self->ssl);
}
Py_XDECREF(self->Socket);
Py_XDECREF(self->ctx);
Py_XDECREF(self->server_hostname);
Py_XDECREF(self->owner);
PyObject_Free(self);
PyObject_GC_Del(self);
Py_DECREF(tp);
}

Expand Down Expand Up @@ -2903,11 +2909,11 @@ static PyType_Slot PySSLSocket_slots[] = {
};

static PyType_Spec PySSLSocket_spec = {
"_ssl._SSLSocket",
sizeof(PySSLSocket),
0,
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE,
PySSLSocket_slots,
.name = "_ssl._SSLSocket",
.basicsize = sizeof(PySSLSocket),
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE |
Py_TPFLAGS_HAVE_GC),
.slots = PySSLSocket_slots,
};

/*
Expand Down Expand Up @@ -3159,6 +3165,7 @@ context_traverse(PySSLContext *self, visitproc visit, void *arg)
{
Py_VISIT(self->set_sni_cb);
Py_VISIT(self->msg_cb);
Py_VISIT(Py_TYPE(self));
return 0;
}

Expand Down Expand Up @@ -4641,11 +4648,11 @@ static PyType_Slot PySSLContext_slots[] = {
};

static PyType_Spec PySSLContext_spec = {
"_ssl._SSLContext",
sizeof(PySSLContext),
0,
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_IMMUTABLETYPE,
PySSLContext_slots,
.name = "_ssl._SSLContext",
.basicsize = sizeof(PySSLContext),
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = PySSLContext_slots,
};


Expand Down Expand Up @@ -4689,10 +4696,18 @@ _ssl_MemoryBIO_impl(PyTypeObject *type)
return (PyObject *) self;
}

static int
memory_bio_traverse(PySSLMemoryBIO *self, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(self));
return 0;
}

static void
memory_bio_dealloc(PySSLMemoryBIO *self)
{
PyTypeObject *tp = Py_TYPE(self);
PyObject_GC_UnTrack(self);
BIO_free(self->bio);
Py_TYPE(self)->tp_free(self);
Py_DECREF(tp);
Expand Down Expand Up @@ -4843,15 +4858,16 @@ static PyType_Slot PySSLMemoryBIO_slots[] = {
{Py_tp_getset, memory_bio_getsetlist},
{Py_tp_new, _ssl_MemoryBIO},
{Py_tp_dealloc, memory_bio_dealloc},
{Py_tp_traverse, memory_bio_traverse},
{0, 0},
};

static PyType_Spec PySSLMemoryBIO_spec = {
"_ssl.MemoryBIO",
sizeof(PySSLMemoryBIO),
0,
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE,
PySSLMemoryBIO_slots,
.name = "_ssl.MemoryBIO",
.basicsize = sizeof(PySSLMemoryBIO),
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE |
Py_TPFLAGS_HAVE_GC),
.slots = PySSLMemoryBIO_slots,
};

/*
Expand Down Expand Up @@ -4934,6 +4950,7 @@ static int
PySSLSession_traverse(PySSLSession *self, visitproc visit, void *arg)
{
Py_VISIT(self->ctx);
Py_VISIT(Py_TYPE(self));
return 0;
}

Expand Down Expand Up @@ -5022,11 +5039,11 @@ static PyType_Slot PySSLSession_slots[] = {
};

static PyType_Spec PySSLSession_spec = {
"_ssl.SSLSession",
sizeof(PySSLSession),
0,
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_IMMUTABLETYPE,
PySSLSession_slots,
.name = "_ssl.SSLSession",
.basicsize = sizeof(PySSLSession),
.flags = (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
Py_TPFLAGS_IMMUTABLETYPE),
.slots = PySSLSession_slots,
};


Expand Down
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