[−][src]Trait sc_client_api::light::Storage

pub trait Storage<Block: BlockT>: AuxStore + HeaderBackend<Block> + HeaderMetadata<Block, Error = ClientError> + ProvideChtRoots<Block> {
    pub fn import_header(
        &self, 
        header: Block::Header, 
        cache: HashMap<Id, Vec<u8>>, 
        state: NewBlockState, 
        aux_ops: Vec<(Vec<u8>, Option<Vec<u8>>)>
    ) -> ClientResult<()>;

    pub fn set_head(&self, block: BlockId<Block>) -> ClientResult<()>;

    pub fn finalize_header(&self, block: BlockId<Block>) -> ClientResult<()>;

    pub fn last_finalized(&self) -> ClientResult<Block::Hash>;

    pub fn cache(&self) -> Option<Arc<dyn BlockchainCache<Block>>>;

    pub fn usage_info(&self) -> Option<UsageInfo>;
}

Light client blockchain storage.

Required methods

pub fn import_header(
    &self,
    header: Block::Header,
    cache: HashMap<Id, Vec<u8>>,
    state: NewBlockState,
    aux_ops: Vec<(Vec<u8>, Option<Vec<u8>>)>
) -> ClientResult<()>[src]

Store new header. Should refuse to revert any finalized blocks.

Takes new authorities, the leaf state of the new block, and any auxiliary storage updates to place in the same operation.

pub fn set_head(&self, block: BlockId<Block>) -> ClientResult<()>[src]

Set an existing block as new best block.

pub fn finalize_header(&self, block: BlockId<Block>) -> ClientResult<()>[src]

Mark historic header as finalized.

pub fn last_finalized(&self) -> ClientResult<Block::Hash>[src]

Get last finalized header.

pub fn cache(&self) -> Option<Arc<dyn BlockchainCache<Block>>>[src]

Get storage cache.

pub fn usage_info(&self) -> Option<UsageInfo>[src]

Get storage usage statistics.

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Implementors

impl<Block: BlockT> Storage<Block> for Blockchain<Block> where
    Block::Hash: From<[u8; 32]>, [src]

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