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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.

Implementations§

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§

impl Debug for AtomicInstant

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

Formats the value using the given formatter. Read more

impl Default for AtomicInstant

fn default() -> AtomicInstant

Returns the “default value” for a type. Read more

impl From<&AtomicInstant> for Instant

fn from(value: &AtomicInstant) -> Instant

Converts to this type from the input type.

Auto Trait Implementations§

impl !Freeze for AtomicInstant

impl RefUnwindSafe for AtomicInstant

impl Send for AtomicInstant

impl Sync for AtomicInstant

impl Unpin for AtomicInstant

impl UnsafeUnpin for AtomicInstant

impl UnwindSafe for AtomicInstant

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

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where T: 'a,

fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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Returns the argument unchanged.

impl<T> FutureExt for T

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Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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Wrap the input message T in a rama_grpc::Request

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Applies the layer to a service and wraps it in Layered.

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const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more

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where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more

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type Output = T

Should always be Self

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The type returned in the event of a conversion error.

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Performs the conversion.

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The type returned in the event of a conversion error.

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Performs the conversion.

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fn vzip(self) -> V

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Write value to writer

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fn format_value(writer: impl ValueWriter, value: &Arc<V>)

Write value to writer

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fn format_value(writer: impl ValueWriter, value: &Box<V>)

Write value to writer

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fn format_value(writer: impl ValueWriter, value: &Cow<'_, V>)

Write value to writer

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fn format_value(writer: impl ValueWriter, value: &Option<V>)

Write value to writer

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