risingwave_storage::hummock::sstable::block

Struct Block

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pub struct Block {
    data: Bytes,
    data_len: usize,
    table_id: TableId,
    restart_points: Vec<RestartPoint>,
    hitmap: Hitmap<{ Self::HITMAP_ELEMS }>,
}

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§data: Bytes

Uncompressed entries data, with restart encoded restart points info.

§data_len: usize

Uncompressed entries data length.

§table_id: TableId

Table id of this block.

§restart_points: Vec<RestartPoint>

Restart points.

§hitmap: Hitmap<{ Self::HITMAP_ELEMS }>

Implementations§

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impl Block

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pub const HITMAP_ELEMS: usize = 4usize

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pub fn get_algorithm(buf: &Bytes) -> HummockResult<CompressionAlgorithm>

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pub fn decode(buf: Bytes, uncompressed_capacity: usize) -> HummockResult<Self>

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pub fn decode_with_copy( buf: Bytes, uncompressed_capacity: usize, copy: bool, ) -> HummockResult<Self>

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pub fn decode_from_raw(buf: Bytes) -> Self

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pub fn len(&self) -> usize

Entries data len.

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pub fn capacity(&self) -> usize

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pub fn table_id(&self) -> TableId

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pub fn restart_point(&self, index: usize) -> RestartPoint

Gets restart point by index.

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pub fn restart_point_len(&self) -> usize

Gets restart point len.

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pub fn search_restart_partition_point<P>(&self, pred: P) -> usize
where P: FnMut(&RestartPoint) -> bool,

Searches the index of the restart point by partition point.

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pub fn data(&self) -> &[u8]

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pub fn raw(&self) -> &[u8]

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pub fn hitmap(&self) -> &Hitmap<{ Self::HITMAP_ELEMS }>

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pub fn efficiency(&self) -> f64

Trait Implementations§

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impl Clone for Block

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fn clone(&self) -> Self

Returns a copy 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 Block

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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<'de> Deserialize<'de> for Block

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

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for Block

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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§

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impl !Freeze for Block

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impl RefUnwindSafe for Block

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impl Send for Block

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impl Sync for Block

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impl Unpin for Block

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impl UnwindSafe for Block

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

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Immutably borrows from an owned value. Read more
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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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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