140     runtime->interpreters.main->id_mutex = PyThread_allocate_lock();  in _PyRuntimeState_ReInitThreads()
149     if (runtime->interpreters.main->id_mutex == NULL) {  in _PyRuntimeState_ReInitThreads()
340     if (interp->id_mutex != NULL) {  in _PyInterpreterState_Delete()
341         PyThread_free_lock(interp->id_mutex);  in _PyInterpreterState_Delete()
382         if (interp->id_mutex != NULL) {  in _PyInterpreterState_DeleteExceptMain()
383             PyThread_free_lock(interp->id_mutex);  in _PyInterpreterState_DeleteExceptMain()
462     if (interp->id_mutex != NULL) {  in _PyInterpreterState_IDInitref()
465     interp->id_mutex = PyThread_allocate_lock();  in _PyInterpreterState_IDInitref()
466     if (interp->id_mutex == NULL) {  in _PyInterpreterState_IDInitref()
479     if (interp->id_mutex == NULL) {  in _PyInterpreterState_IDIncref()
482     PyThread_acquire_lock(interp->id_mutex, WAIT_LOCK);  in _PyInterpreterState_IDIncref()
484     PyThread_release_lock(interp->id_mutex);  in _PyInterpreterState_IDIncref()
491     if (interp->id_mutex == NULL) {  in _PyInterpreterState_IDDecref()
495     PyThread_acquire_lock(interp->id_mutex, WAIT_LOCK);  in _PyInterpreterState_IDDecref()
499     PyThread_release_lock(interp->id_mutex);  in _PyInterpreterState_IDDecref()