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AtomicInstant

rama::utils::time

Struct AtomicInstant 

pub struct AtomicInstant(/* private fields */);
Available on crate feature std only.
Expand description

A monotonic instant stored in a single AtomicU64 as nanoseconds since a shared process epoch (see now_monotonic_nanos).

Lock-free to read and update, useful for recency tracking (e.g. “least recently used”) without a Mutex<Instant>. Reads/writes use relaxed ordering, so it is a heuristic timestamp, not a synchronization point.

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impl AtomicInstant

pub fn now() -> AtomicInstant

Available on crate features grpc and http only.

Create an AtomicInstant set to now.

pub fn set_now(&self)

Available on crate features grpc and http only.

Set this instant to now.

pub fn as_nanos(&self) -> u64

Available on crate features grpc and http only.

Nanoseconds since the shared epoch, for cheap ordering comparisons.

pub fn elapsed(&self) -> Duration

Available on crate features grpc and http only.

Duration elapsed since this instant (zero if it is in the future).

pub fn to_instant(&self) -> Instant

Available on crate features grpc and http only.

Convert back to a real [Instant].

Trait Implementations§

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impl Debug for AtomicInstant

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

Formats the value using the given formatter. Read more
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impl Default for AtomicInstant

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fn default() -> AtomicInstant

Returns the “default value” for a type. Read more
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impl From<&AtomicInstant> for Instant

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fn from(value: &AtomicInstant) -> Instant

Converts to this type from the input type.

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