Jeremy Soller
17 lines
455 B
Rust
17 lines
455 B
Rust
use spin::Mutex;
|
|
|
|
pub const NANOS_PER_SEC: u128 = 1_000_000_000;
|
|
|
|
/// Kernel start time, measured in (seconds, nanoseconds) since Unix epoch
|
|
pub static START: Mutex<u128> = Mutex::new(0);
|
|
/// Kernel up time, measured in (seconds, nanoseconds) since `START_TIME`
|
|
pub static OFFSET: Mutex<u128> = Mutex::new(0);
|
|
|
|
pub fn monotonic() -> u128 {
|
|
*OFFSET.lock() + crate::arch::time::counter()
|
|
}
|
|
|
|
pub fn realtime() -> u128 {
|
|
*START.lock() + monotonic()
|
|
}
|