Struct exonum::blockchain::Blockchain

pub struct Blockchain { /* fields omitted */ }

Shared Exonum blockchain instance.

This is essentially a smart pointer to shared blockchain resources (storage, cryptographic keys, and a sender of transactions). It can be converted into a BlockchainMut instance, which combines these resources with behavior (i.e., a set of services).

Methods

impl Blockchain

pub fn new(
    database: impl Into<Arc<dyn Database>>,
    service_keypair: (PublicKey, SecretKey),
    api_sender: ApiSender
) -> Self

Constructs a blockchain for the given database.

pub fn build_for_tests() -> Self

Creates a non-persisting blockchain, all data in which is irrevocably lost on drop.

The created blockchain cannot send transactions; an attempt to do so will result in an error.

pub fn snapshot(&self) -> Box<dyn Snapshot>

Creates a read-only snapshot of the current storage state.

pub fn last_hash(&self) -> Hash

Returns the hash of the latest committed block.

Panics

If the genesis block was not committed.

pub fn last_block(&self) -> Block

Returns the latest committed block.

pub fn pool_size(&self) -> u64

Returns the transactions pool size.

pub fn get_saved_peers(&self) -> HashMap<PublicKey, Verified<Connect>>

Returns Connect messages from peers saved in the cache, if any.

pub fn sender(&self) -> &ApiSender

Returns reference to the transactions sender.

pub fn service_keypair(&self) -> &(PublicKey, SecretKey)

Returns reference to the service key pair of the current node.

Trait Implementations

impl AsRef<Blockchain> for BlockchainMut

fn as_ref(&self) -> &Blockchain

Performs the conversion.

impl Clone for Blockchain

fn clone(&self) -> Blockchain

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Blockchain

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.