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RunManifest

Struct RunManifest 

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pub struct RunManifest {
    pub entries: RangeInclusive<u64>,
    pub key_lo: Vec<u8>,
    pub key_hi: Vec<u8>,
    pub run_hash: [u8; 32],
    pub manifest_index: Option<u64>,
}
Expand description

A sealed, sorted run of lookup keys over a contiguous range of entries, recorded in the log as an entry of its own so the checkpoint signs it.

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§entries: RangeInclusive<u64>

The entries the run indexes, by log index.

§key_lo: Vec<u8>

The smallest key in the run.

§key_hi: Vec<u8>

The largest key in the run.

§run_hash: [u8; 32]

SHA-256 of the run’s key file (sorted (key, index) pairs and the filter), the bytes a reader checks before trusting a seek.

§manifest_index: Option<u64>

The log index of the entry that records this manifest, once logged. A run with no manifest index is sealed on disk and not yet in the tree; a checkpoint does not cover it.

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impl Clone for RunManifest

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fn clone(&self) -> RunManifest

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 RunManifest

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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 RunManifest

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for RunManifest

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impl StructuralPartialEq for RunManifest

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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, 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> Same for T

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type Output = T

Should always be Self
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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.