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DeltaHeader

Struct DeltaHeader 

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#[repr(C)]
pub struct DeltaHeader { pub magic: u32, pub version: u16, pub encoding: u8, pub _pad: u8, pub base_cluster_id: u32, pub affected_count: u32, pub delta_size: u64, pub delta_hash: [u8; 32], pub _reserved: [u8; 8], }
Expand description

64-byte header for DELTA_SEG payloads.

Follows the standard 64-byte SegmentHeader. All multi-byte fields are little-endian on the wire.

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§magic: u32

Magic: DELTA_MAGIC (0x5256444C, “RVDL”).

§version: u16

DeltaHeader format version (currently 1).

§encoding: u8

Delta encoding strategy (see DeltaEncoding).

§_pad: u8

Padding (must be zero).

§base_cluster_id: u32

Cluster ID that this delta applies to.

§affected_count: u32

Number of vectors affected by this delta.

§delta_size: u64

Size of the delta payload in bytes.

§delta_hash: [u8; 32]

SHAKE-256-256 hash of the delta payload.

§_reserved: [u8; 8]

Reserved (must be zero).

Implementations§

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impl DeltaHeader

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pub fn to_bytes(&self) -> [u8; 64]

Serialize the header to a 64-byte little-endian array.

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pub fn from_bytes(data: &[u8; 64]) -> Result<Self, RvfError>

Deserialize a DeltaHeader from a 64-byte slice.

Trait Implementations§

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impl Clone for DeltaHeader

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fn clone(&self) -> DeltaHeader

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for DeltaHeader

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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 Copy for DeltaHeader

Auto Trait Implementations§

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, 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.