use lazy_static::lazy_static; lazy_static! { pub static ref KERNEL_STATE: spin::Mutex = spin::Mutex::new(KernelInternalState::new()); } pub struct KernelInternalState { should_shutdown: bool, } impl KernelInternalState { pub fn new() -> Self { Self { should_shutdown: false, } } pub fn shutdown(&mut self) { self.should_shutdown = true; } pub fn update_state(&mut self) { if self.should_shutdown { crate::arch::shutdown(); } } }