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bpo-46417: _thread module uses PyStructSequence_NewType() by vstinner · Pull Request #30733 · python/cpython · GitHub

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bpo-46417: _thread module uses PyStructSequence_NewType() #30733

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vstinner merged 1 commit into from
Jan 21, 2022
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bpo-46417: _thread module uses PyStructSequence_NewType() #30733

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26 changes: 14 additions & 12 deletions Modules/_threadmodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ static struct PyModuleDef thread_module;


typedef struct {
PyTypeObject *excepthook_type;
PyTypeObject *lock_type;
PyTypeObject *local_type;
PyTypeObject *local_dummy_type;
Expand Down Expand Up @@ -1473,8 +1474,6 @@ PyDoc_STRVAR(ExceptHookArgs__doc__,
\n\
Type used to pass arguments to threading.excepthook.");

static PyTypeObject ExceptHookArgsType;

static PyStructSequence_Field ExceptHookArgs_fields[] = {
{"exc_type", "Exception type"},
{"exc_value", "Exception value"},
Expand All @@ -1492,9 +1491,11 @@ static PyStructSequence_Desc ExceptHookArgs_desc = {


static PyObject *
thread_excepthook(PyObject *self, PyObject *args)
thread_excepthook(PyObject *module, PyObject *args)
{
if (!Py_IS_TYPE(args, &ExceptHookArgsType)) {
thread_module_state *state = get_thread_state(module);

if (!Py_IS_TYPE(args, state->excepthook_type)) {
PyErr_SetString(PyExc_TypeError,
"_thread.excepthook argument type "
"must be ExceptHookArgs");
Expand Down Expand Up @@ -1629,18 +1630,17 @@ thread_module_exec(PyObject *module)
return -1;
}

if (ExceptHookArgsType.tp_name == NULL) {
if (PyStructSequence_InitType2(&ExceptHookArgsType,
&ExceptHookArgs_desc) < 0) {
return -1;
}
}

// Add module attributes
if (PyDict_SetItemString(d, "error", ThreadError) < 0) {
return -1;
}
if (PyModule_AddType(module, &ExceptHookArgsType) < 0) {

// _ExceptHookArgs type
state->excepthook_type = PyStructSequence_NewType(&ExceptHookArgs_desc);
if (state->excepthook_type == NULL) {
return -1;
}
if (PyModule_AddType(module, state->excepthook_type) < 0) {
return -1;
}

Expand All @@ -1664,6 +1664,7 @@ static int
thread_module_traverse(PyObject *module, visitproc visit, void *arg)
{
thread_module_state *state = get_thread_state(module);
Py_VISIT(state->excepthook_type);
Py_VISIT(state->lock_type);
Py_VISIT(state->local_type);
Py_VISIT(state->local_dummy_type);
Expand All @@ -1674,6 +1675,7 @@ static int
thread_module_clear(PyObject *module)
{
thread_module_state *state = get_thread_state(module);
Py_CLEAR(state->excepthook_type);
Py_CLEAR(state->lock_type);
Py_CLEAR(state->local_type);
Py_CLEAR(state->local_dummy_type);
Expand Down
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