Enum Key

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pub enum Key {
    Entry(Index),
    TermVote,
    CommitIndex,
    SnapshotMeta,
    SnapshotData,
}

Expand description

日志存储键。

编码为固定前缀 + 可选的大端索引，保证 Entry(i) 按索引字典序排列，且全部 Entry 键排在元数据键之前：

Entry(index) → [0x00] ‖ index.to_be_bytes()
TermVote → [0x01]
CommitIndex → [0x02]
SnapshotMeta → [0x03] (last_included_index, last_included_term)
SnapshotData → [0x04] 状态机快照字节

Variants§

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Entry(Index)

日志条目，保存任期与命令。

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TermVote

保存当前任期与投票（若有）。

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CommitIndex

保存当前 commit 索引（若有）。

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SnapshotMeta

快照元数据：(last_included_index, last_included_term)。

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SnapshotData

状态机快照原始字节。

Implementations§

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impl Key

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pub fn encode(&self) -> Vec<u8> ⓘ

编码为有序字节键。

Trait Implementations§

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impl Clone for Key

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fn clone(&self) -> Key

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 Key

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

Formats the value using the given formatter. Read more

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impl PartialEq for Key

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

Equality operator ==. Read more

1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more

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impl StructuralPartialEq for Key

Auto Trait Implementations§

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impl UnwindSafe for Key

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, U> Into 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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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