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transaction-pool: expose blocking api for tx submission (#6325)

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* transaction-pool: expose blocking api for tx submission

* service: separate ServiceBuilder::build for full and light

* service: add ServiceBuilder::build_common

* transaction-pool: extend docs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
This commit is contained in:
André Silva
2020-06-11 11:16:31 +01:00
committed by GitHub
parent 2cae33cf6e
commit 6b75f7c405
6 changed files with 232 additions and 41 deletions
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substrate/primitives/transaction-pool/src/pool.rs
+30 -7
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@@ -141,6 +141,8 @@ pub type BlockHash<P> = <<P as TransactionPool>::Block as BlockT>::Hash;
pub type TransactionFor<P> = <<P as TransactionPool>::Block as BlockT>::Extrinsic;
/// Type of transactions event stream for a pool.
pub type TransactionStatusStreamFor<P> = TransactionStatusStream<TxHash<P>, BlockHash<P>>;
/// Transaction type for a local pool.
pub type LocalTransactionFor<P> = <<P as LocalTransactionPool>::Block as BlockT>::Extrinsic;
/// Typical future type used in transaction pool api.
pub type PoolFuture<T, E> = std::pin::Pin<Box<dyn Future<Output=Result<T, E>> + Send>>;
@@ -273,6 +275,28 @@ pub trait MaintainedTransactionPool: TransactionPool {
fn maintain(&self, event: ChainEvent<Self::Block>) -> Pin<Box<dyn Future<Output=()> + Send>>;
}
/// Transaction pool interface for submitting local transactions that exposes a
/// blocking interface for submission.
pub trait LocalTransactionPool: Send + Sync {
/// Block type.
type Block: BlockT;
/// Transaction hash type.
type Hash: Hash + Eq + Member + Serialize;
/// Error type.
type Error: From<crate::error::Error> + crate::error::IntoPoolError;
/// Submits the given local unverified transaction to the pool blocking the
/// current thread for any necessary pre-verification.
/// NOTE: It MUST NOT be used for transactions that originate from the
/// network or RPC, since the validation is performed with
/// `TransactionSource::Local`.
fn submit_local(
&self,
at: &BlockId<Self::Block>,
xt: LocalTransactionFor<Self>,
) -> Result<Self::Hash, Self::Error>;
}
/// An abstraction for transaction pool.
///
/// This trait is used by offchain calls to be able to submit transactions.
@@ -291,7 +315,7 @@ pub trait OffchainSubmitTransaction<Block: BlockT>: Send + Sync {
) -> Result<(), ()>;
}
impl<TPool: TransactionPool> OffchainSubmitTransaction<TPool::Block> for TPool {
impl<TPool: LocalTransactionPool> OffchainSubmitTransaction<TPool::Block> for TPool {
fn submit_at(
&self,
at: &BlockId<TPool::Block>,
@@ -303,15 +327,14 @@ impl<TPool: TransactionPool> OffchainSubmitTransaction<TPool::Block> for TPool {
extrinsic
);
let result = futures::executor::block_on(self.submit_one(
&at, TransactionSource::Local, extrinsic,
));
let result = self.submit_local(&at, extrinsic);
result.map(|_| ())
.map_err(|e| log::warn!(
result.map(|_| ()).map_err(|e| {
log::warn!(
target: "txpool",
"(offchain call) Error submitting a transaction to the pool: {:?}",
e
))
)
})
}
}