Trait subcoin_primitives::BackendExt

pub trait BackendExt<Block: BlockT> {
    // Required methods
    fn block_exists(&self, bitcoin_block_hash: BlockHash) -> bool;
    fn block_number(&self, bitcoin_block_hash: BlockHash) -> Option<u32>;
    fn block_hash(&self, block_number: u32) -> Option<BlockHash>;
    fn block_header(
        &self,
        bitcoin_block_hash: BlockHash,
    ) -> Option<BitcoinHeader>;
    fn bitcoin_block_hash_for(
        &self,
        substrate_block_hash: <Block as BlockT>::Hash,
    ) -> Option<BlockHash>;
    fn substrate_block_hash_for(
        &self,
        bitcoin_block_hash: BlockHash,
    ) -> Option<<Block as BlockT>::Hash>;
}

Trait for interfacing with the Bitcoin storage.

Th essence of this trait is the mapping of the hashes between the substrate block and the corresponding bitcoin block.

The mapping is stored in the client’s auxiliary database.

Required Methods

fn block_exists(&self, bitcoin_block_hash: BlockHash) -> bool

Whether the specified Bitcoin block exists in the system.

fn block_number(&self, bitcoin_block_hash: BlockHash) -> Option<u32>

Returns the number for given bitcoin block hash.

Returns None if the header is not in the chain.

fn block_hash(&self, block_number: u32) -> Option<BlockHash>

Returns the bitcoin block hash for given block number.

Returns None if the header is not in the chain.

fn block_header(&self, bitcoin_block_hash: BlockHash) -> Option<BitcoinHeader>

Returns the header for given bitcoin block hash.

fn bitcoin_block_hash_for( &self, substrate_block_hash: <Block as BlockT>::Hash, ) -> Option<BlockHash>

Returns Some(BlockHash) if a corresponding Bitcoin block hash is found, otherwise returns None.

fn substrate_block_hash_for( &self, bitcoin_block_hash: BlockHash, ) -> Option<<Block as BlockT>::Hash>

Returns Some(Block::Hash) if a corresponding Substrate block hash is found, otherwise returns None.

Implementations on Foreign Types

impl<Block, Client> BackendExt<Block> for Arc<Client>

where Block: BlockT, Client: HeaderBackend<Block> + AuxStore,

fn block_exists(&self, bitcoin_block_hash: BlockHash) -> bool

fn block_number(&self, bitcoin_block_hash: BlockHash) -> Option<u32>

fn block_hash(&self, number: u32) -> Option<BlockHash>

fn block_header(&self, bitcoin_block_hash: BlockHash) -> Option<BitcoinHeader>

fn bitcoin_block_hash_for( &self, substrate_block_hash: <Block as BlockT>::Hash, ) -> Option<BlockHash>

fn substrate_block_hash_for( &self, bitcoin_block_hash: BlockHash, ) -> Option<<Block as BlockT>::Hash>

Implementors