os_test_framework/
platform.rs

1use core::fmt::Arguments;
2
3use alloc::boxed::Box;
4use spin::{Mutex, Once};
5
6static PLATFORM: Once<Mutex<Box<dyn Platform>>> = Once::new();
7
8pub fn init_platform(platform: impl Platform + 'static) {
9    PLATFORM.call_once(|| Mutex::new(Box::new(platform)));
10}
11
12pub fn platform() -> &'static Mutex<Box<dyn Platform>> {
13    PLATFORM.get().unwrap()
14}
15
16pub enum ExitState {
17    Success,
18    Failed,
19}
20
21pub trait Platform: Send + Sync {
22    fn print(&mut self, args: Arguments);
23    fn exit(&self, state: ExitState) -> !;
24}

os_test_framework/platform.rs

os_test_framework/
platform.rs