Enum Clock

pub enum Clock {
    Tai,
    RealTime,
    BootTime,
    Monotonic,
    MonotonicRaw,
}

Available internal Linux timers.

Variants

Tai

A nonsettable system-wide clock derived from wall-clock time but ignoring leap seconds.

This clock does not experience discontinuities and backwards jumps caused by NTP inserting leap seconds as RealTime does.

This is International Atomic Time (TAI).

RealTime

A settable system-wide clock that measures real (i.e., wall-clock) time.

This clock is affected by discontinuous jumps in the system time (e.g., if the system administrator manually changes the clock), and by the incremental adjustments performed by adjtime and NTP.

BootTime

Similar to Monotonic, but it also includes any time that the system is suspended.

Monotonic

A nonsettable system-wide clock that represents monotonic time since the system booted.

This clock is not affected by discontinuous jumps in the system time (e.g., if the system administrator manually changes the clock), but is affected by the incremental adjustments performed by adjtime and NTP.

This time never go backwards, but successive calls may return identical (not-increased) time values.

This clock does not count time that the system is suspended.

MonotonicRaw

Similar to Monotonic, but provides access to a raw hardware-based time that is not subject to NTP adjustments or the incremental adjustments performed by adjtime.

Trait Implementations

impl Clone for Clock

fn clone(&self) -> Clock

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Clock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.