Function _settraceallthreads

crates/vm/src/stdlib/sys.rs:1380–1385

(tracefunc: PyObjectRef, vm: &VirtualMachine)

    #[pyfunction]
    fn _settraceallthreads(tracefunc: PyObjectRef, vm: &VirtualMachine) {
        let func = (!vm.is_none(&tracefunc)).then(|| tracefunc.clone());
        *vm.state.global_trace_func.lock() = func;
        vm.trace_func.replace(tracefunc);
        update_use_tracing(vm);
    }

    #[pyfunction]
    fn _setprofileallthreads(profilefunc: PyObjectRef, vm: &VirtualMachine) {