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gh-112062: Make _struct module thread-safe in --disable-gil builds (#112094)

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* gh-112062: Make `_struct` module thread-safe in --disable-gil builds
This commit is contained in:
Radislav Chugunov 2023-11-15 07:00:34 +03:00 • committed by GitHub
parent 55f3cce821
commit 4744f59a5e
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 7 deletions
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13
Modules/_struct.c
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@ -2250,12 +2250,6 @@ cache_struct_converter(PyObject *module, PyObject *fmt, PyStructObject **ptr)
return 1;
}
if (state->cache == NULL) {
state->cache = PyDict_New();
if (state->cache == NULL)
return 0;
}
s_object = PyDict_GetItemWithError(state->cache, fmt);
if (s_object != NULL) {
*ptr = (PyStructObject *)Py_NewRef(s_object);
@ -2288,7 +2282,7 @@ static PyObject *
_clearcache_impl(PyObject *module)
/*[clinic end generated code: output=ce4fb8a7bf7cb523 input=463eaae04bab3211]*/
{
Py_CLEAR(get_struct_state(module)->cache);
PyDict_Clear(get_struct_state(module)->cache);
Py_RETURN_NONE;
}
@ -2512,6 +2506,11 @@ _structmodule_exec(PyObject *m)
{
_structmodulestate *state = get_struct_state(m);
state->cache = PyDict_New();
if (state->cache == NULL) {
return -1;
}
state->PyStructType = PyType_FromModuleAndSpec(
m, &PyStructType_spec, NULL);
if (state->PyStructType == NULL) {