453     struct _gilstate_runtime_state *gilstate = &tstate->interp->runtime->gilstate;  in PyEval_AcquireThread()  local
455     (void)_PyThreadState_Swap(gilstate, tstate);  in PyEval_AcquireThread()
457     if (_PyThreadState_Swap(gilstate, tstate) != NULL) {  in PyEval_AcquireThread()
469     PyThreadState *new_tstate = _PyThreadState_Swap(&runtime->gilstate, NULL);  in PyEval_ReleaseThread()
525     PyThreadState *tstate = _PyThreadState_Swap(&runtime->gilstate, old_tstate);  in PyEval_SaveThread()
527     PyThreadState *tstate = _PyThreadState_Swap(&runtime->gilstate, NULL);  in PyEval_SaveThread()
549     struct _gilstate_runtime_state *gilstate = &tstate->interp->runtime->gilstate;  in PyEval_RestoreThread()  local
550     _PyThreadState_Swap(gilstate, tstate);  in PyEval_RestoreThread()
1182         if (_PyThreadState_Swap(&runtime->gilstate, NULL) != tstate) {  in eval_frame_handle_pending()
1192         (void)_PyThreadState_Swap(&runtime->gilstate, tstate);  in eval_frame_handle_pending()
1194         if (_PyThreadState_Swap(&runtime->gilstate, tstate) != NULL) {  in eval_frame_handle_pending()