Enum ClockSource 

pub enum ClockSource {
    Tsc,
    Cntvct,
    Instant,
    LibcMono,
    Mock,
    External,
}

Which underlying source a Clock is actually reading.

Observable per REQ-CLK-003: read cost and source used must be discoverable — e.g. a CalibratedClock that fell back reports the fallback, never the counter it failed to use.

Variants

Tsc

x86_64 rdtsc behind a calibrated multiply-shift.

Cntvct

aarch64 cntvct_el0 behind a calibrated multiply-shift.

Instant

std::time::Instant (the calibrated-clock fallback under std).

LibcMono

clock_gettime(CLOCK_MONOTONIC) via libc (no_std hosts, and the calibrated-clock fallback under the libc feature).

Mock

Deterministic test clock — the OS is never consulted.

External

Bridged chronoshift::Clock (the chronoshift feature).

Implementations

impl ClockSource

pub const fn as_str(&self) -> &'static str

Stable machine-readable name.

Trait Implementations

impl Clone for ClockSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ClockSource

impl Debug for ClockSource

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

Formats the value using the given formatter.

impl Eq for ClockSource

impl Hash for ClockSource

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ClockSource

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ClockSource