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CheckpointBlob

Struct CheckpointBlob 

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pub struct CheckpointBlob {
    pub id: CheckpointId,
    pub data: Vec<u8>,
    pub graph_hash: u64,
    pub created_at: SystemTime,
}
Expand description

跨 Codec 的统一载体 — 存储层操作的对象。

将序列化后的二进制数据与元数据打包,供 CheckpointStore 使用。 存储层无需知道 State 类型或序列化格式。

graph_hash 作为 correctness invariant 存储: 恢复时校验 graph_hash 不匹配 → reject,不允许 silent mismatch。

Fields§

§id: CheckpointId

Checkpoint 唯一标识

§data: Vec<u8>

序列化后的二进制数据(格式由 Codec 决定)

§graph_hash: u64

图结构指纹 — 恢复时校验兼容性

§created_at: SystemTime

创建时间

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impl CheckpointBlob

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pub fn new( id: CheckpointId, data: Vec<u8>, graph_hash: u64, created_at: SystemTime, ) -> Self

Trait Implementations§

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impl Clone for CheckpointBlob

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fn clone(&self) -> CheckpointBlob

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
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impl Debug for CheckpointBlob

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

Formats the value using the given formatter. Read more

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Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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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
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

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