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DistributedEntry

amalgam::distributed

Struct DistributedEntry

pub struct DistributedEntry<V> {
    pub value: V,
    pub created_ticks: i64,
    pub logical_expiration_ticks: i64,
    pub physical_expiration_ticks: i64,
    pub is_from_fail_safe: bool,
    pub etag: Option<String>,
    pub last_modified_ticks: Option<i64>,
    pub tags: Vec<String>,
}

Expand description

The serializable L2 envelope: a value together with the metadata required to rebuild its freshness/fail-safe state on any node.

Fields§

§value: V

The cached value.

§created_ticks: i64

Creation tick (for tag-marker comparison).

§logical_expiration_ticks: i64

Logical-expiration tick.

§physical_expiration_ticks: i64

Physical-expiration tick (fail-safe boundary).

§is_from_fail_safe: bool

Whether the value came from a fail-safe activation.

§etag: Option<String>

Optional ETag for conditional refresh.

§last_modified_ticks: Option<i64>

Optional LastModified tick for conditional refresh.

§tags: Vec<String>

The tags attached to the entry.

Implementations§

impl<V: Clone> DistributedEntry<V>

pub fn from_entry(entry: &Entry<V>) -> Self

Captures an in-memory Entry as a wire envelope.

pub fn into_entry(self, now: Timestamp) -> Entry<V>

Rebuilds an in-memory Entry from the wire envelope, relative to now.

Trait Implementations§

impl<V: Clone> Clone for DistributedEntry<V>

fn clone(&self) -> DistributedEntry<V>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

impl<V: Debug> Debug for DistributedEntry<V>

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

Formats the value using the given formatter. Read more

impl<'de, V> Deserialize<'de> for DistributedEntry<V>
where V: Deserialize<'de>,

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl<V> Serialize for DistributedEntry<V>
where V: Serialize,

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations§

impl<V> Freeze for DistributedEntry<V>
where V: Freeze,

impl<V> RefUnwindSafe for DistributedEntry<V>
where V: RefUnwindSafe,

impl<V> Send for DistributedEntry<V>
where V: Send,

impl<V> Sync for DistributedEntry<V>
where V: Sync,

impl<V> Unpin for DistributedEntry<V>
where V: Unpin,

impl<V> UnsafeUnpin for DistributedEntry<V>
where V: UnsafeUnpin,

impl<V> UnwindSafe for DistributedEntry<V>
where V: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

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

fn in_current_span(self) -> Instrumented<Self> ⓘ

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

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointable for T

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

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more