Trait sc_transaction_pool_api::TransactionPool

pub trait TransactionPool: Send + Sync {
    type Block: BlockT;
    type Hash: Hash + Eq + Member + Serialize + DeserializeOwned + Codec;
    type InPoolTransaction: InPoolTransaction<Transaction = TransactionFor<Self>, Hash = TxHash<Self>>;
    type Error: From<Error> + IntoPoolError;

    // Required methods
    fn submit_at(
        &self,
        at: <Self::Block as BlockT>::Hash,
        source: TransactionSource,
        xts: Vec<TransactionFor<Self>>
    ) -> PoolFuture<Vec<Result<TxHash<Self>, Self::Error>>, Self::Error>;
    fn submit_one(
        &self,
        at: <Self::Block as BlockT>::Hash,
        source: TransactionSource,
        xt: TransactionFor<Self>
    ) -> PoolFuture<TxHash<Self>, Self::Error>;
    fn submit_and_watch(
        &self,
        at: <Self::Block as BlockT>::Hash,
        source: TransactionSource,
        xt: TransactionFor<Self>
    ) -> PoolFuture<Pin<Box<TransactionStatusStreamFor<Self>>>, Self::Error>;
    fn ready_at(
        &self,
        at: NumberFor<Self::Block>
    ) -> Pin<Box<dyn Future<Output = Box<dyn ReadyTransactions<Item = Arc<Self::InPoolTransaction>> + Send>> + Send>>;
    fn ready(
        &self
    ) -> Box<dyn ReadyTransactions<Item = Arc<Self::InPoolTransaction>> + Send>;
    fn remove_invalid(
        &self,
        hashes: &[TxHash<Self>]
    ) -> Vec<Arc<Self::InPoolTransaction>>;
    fn futures(&self) -> Vec<Self::InPoolTransaction>;
    fn status(&self) -> PoolStatus;
    fn import_notification_stream(
        &self
    ) -> ImportNotificationStream<TxHash<Self>>;
    fn on_broadcasted(&self, propagations: HashMap<TxHash<Self>, Vec<String>>);
    fn hash_of(&self, xt: &TransactionFor<Self>) -> TxHash<Self>;
    fn ready_transaction(
        &self,
        hash: &TxHash<Self>
    ) -> Option<Arc<Self::InPoolTransaction>>;
}

Transaction pool interface.

Required Associated Types

type Block: BlockT

Block type.

type Hash: Hash + Eq + Member + Serialize + DeserializeOwned + Codec

Transaction hash type.

type InPoolTransaction: InPoolTransaction<Transaction = TransactionFor<Self>, Hash = TxHash<Self>>

In-pool transaction type.

type Error: From<Error> + IntoPoolError

Error type.

Required Methods

fn submit_at( &self, at: <Self::Block as BlockT>::Hash, source: TransactionSource, xts: Vec<TransactionFor<Self>> ) -> PoolFuture<Vec<Result<TxHash<Self>, Self::Error>>, Self::Error>

Returns a future that imports a bunch of unverified transactions to the pool.

fn submit_one( &self, at: <Self::Block as BlockT>::Hash, source: TransactionSource, xt: TransactionFor<Self> ) -> PoolFuture<TxHash<Self>, Self::Error>

Returns a future that imports one unverified transaction to the pool.

fn submit_and_watch( &self, at: <Self::Block as BlockT>::Hash, source: TransactionSource, xt: TransactionFor<Self> ) -> PoolFuture<Pin<Box<TransactionStatusStreamFor<Self>>>, Self::Error>

Returns a future that import a single transaction and starts to watch their progress in the pool.

fn ready_at( &self, at: NumberFor<Self::Block> ) -> Pin<Box<dyn Future<Output = Box<dyn ReadyTransactions<Item = Arc<Self::InPoolTransaction>> + Send>> + Send>>

Get an iterator for ready transactions ordered by priority.

Guarantees to return only when transaction pool got updated at at block. Guarantees to return immediately when None is passed.

fn ready( &self ) -> Box<dyn ReadyTransactions<Item = Arc<Self::InPoolTransaction>> + Send>

Get an iterator for ready transactions ordered by priority.

fn remove_invalid( &self, hashes: &[TxHash<Self>] ) -> Vec<Arc<Self::InPoolTransaction>>

Remove transactions identified by given hashes (and dependent transactions) from the pool.

fn futures(&self) -> Vec<Self::InPoolTransaction>

Get futures transaction list.

fn status(&self) -> PoolStatus

Returns pool status.

fn import_notification_stream(&self) -> ImportNotificationStream<TxHash<Self>>

Return an event stream of transactions imported to the pool.

fn on_broadcasted(&self, propagations: HashMap<TxHash<Self>, Vec<String>>)

Notify the pool about transactions broadcast.

fn hash_of(&self, xt: &TransactionFor<Self>) -> TxHash<Self>

Returns transaction hash

fn ready_transaction( &self, hash: &TxHash<Self> ) -> Option<Arc<Self::InPoolTransaction>>

Return specific ready transaction by hash, if there is one.

Implementors