ckb_store::data_loader_wrapper

Struct DataLoaderWrapper

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pub struct DataLoaderWrapper<T>(/* private fields */);
Expand description

DataLoaderWrapper wrapChainStore impl HeaderProvider CellDataProvider EpochProvider

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impl<T> CellDataProvider for DataLoaderWrapper<T>
where T: ChainStore,

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fn get_cell_data(&self, out_point: &OutPoint) -> Option<Bytes>

Fetch cell_data from storage
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fn get_cell_data_hash(&self, out_point: &OutPoint) -> Option<Byte32>

Fetch cell_data_hash from storage, please note that loading a large amount of cell data and calculating hash may be a performance bottleneck, so here is a separate fn designed to facilitate caching. Read more
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fn load_cell_data(&self, cell: &CellMeta) -> Option<Bytes>

Load cell_data from memory, fallback to storage access
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fn load_cell_data_hash(&self, cell: &CellMeta) -> Option<Byte32>

Load cell_data_hash from memory, fallback to storage access
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impl<T> Clone for DataLoaderWrapper<T>

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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<T> EpochProvider for DataLoaderWrapper<T>
where T: ChainStore,

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fn get_epoch_ext(&self, header: &HeaderView) -> Option<EpochExt>

Get corresponding EpochExt by block header
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fn get_block_hash(&self, number: BlockNumber) -> Option<Byte32>

Get block header hash by block number
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fn get_block_ext(&self, block_hash: &Byte32) -> Option<BlockExt>

Get block ext by block header hash
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fn get_block_header(&self, hash: &Byte32) -> Option<HeaderView>

Get header by block header hash
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fn get_block_epoch(&self, header: &HeaderView) -> Option<BlockEpoch>

Get corresponding epoch progress information by block header
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impl<T> ExtensionProvider for DataLoaderWrapper<T>
where T: ChainStore,

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fn get_block_extension(&self, hash: &Byte32) -> Option<Bytes>

Get the extension field of the given block hash
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impl<T> HeaderFieldsProvider for DataLoaderWrapper<T>
where T: ChainStore,

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fn get_header_fields(&self, hash: &Byte32) -> Option<HeaderFields>

Get the header fields of the given block hash
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fn block_median_time( &self, block_hash: &Byte32, median_block_count: usize, ) -> u64

Get past block median time, including the timestamp of the given one
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impl<T> HeaderProvider for DataLoaderWrapper<T>
where T: ChainStore,

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fn get_header(&self, block_hash: &Byte32) -> Option<HeaderView>

Get the header of the given block hash

Auto Trait Implementations§

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impl<T> Freeze for DataLoaderWrapper<T>

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impl<T> RefUnwindSafe for DataLoaderWrapper<T>
where T: RefUnwindSafe,

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impl<T> Send for DataLoaderWrapper<T>
where T: Sync + Send,

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impl<T> Sync for DataLoaderWrapper<T>
where T: Sync + Send,

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impl<T> Unpin for DataLoaderWrapper<T>

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impl<T> UnwindSafe for DataLoaderWrapper<T>
where T: RefUnwindSafe,

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> AsAny for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

Cast to trait Any
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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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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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> 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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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T