Extrinsic pool (#182)

* Use latest version of txpool.

* Initial version of the pool.

* Fix abstraction.

* Implement watchers and notifications.

* Return hash from RPC.

* Remove commented code.

* Remove client dep.

* Fix tests.

substrate/polkadot/cli/src/lib.rs

@@ -61,39 +61,11 @@ mod informant;
 use std::io;
 use std::net::SocketAddr;
 use std::path::{Path, PathBuf};
-use std::sync::Arc;
 
 use futures::sync::mpsc;
 use futures::{Sink, Future, Stream};
 use tokio_core::reactor;
-use parking_lot::Mutex;
 use service::ChainSpec;
-use primitives::block::Extrinsic;
-
-struct RpcTransactionPool {
-	inner: Arc<Mutex<txpool::TransactionPool>>,
-	network: Arc<network::Service>,
-}
-
-impl substrate_rpc::author::AuthorApi for RpcTransactionPool {
-	fn submit_extrinsic(&self, xt: Extrinsic) -> substrate_rpc::author::error::Result<()> {
-		use primitives::hexdisplay::HexDisplay;
-		use polkadot_runtime::UncheckedExtrinsic;
-		use codec::Slicable;
-
-		info!("Extrinsic submitted: {}", HexDisplay::from(&xt.0));
-		let decoded = xt.using_encoded(|ref mut s| UncheckedExtrinsic::decode(s))
-			.ok_or(substrate_rpc::author::error::ErrorKind::InvalidFormat)?;
-
-		info!("Correctly formatted: {:?}", decoded);
-
-		self.inner.lock().import(decoded)
-			.map_err(|_| substrate_rpc::author::error::ErrorKind::PoolError)?;
-
-		self.network.trigger_repropagate();
-		Ok(())
-	}
-}
 
 struct Configuration(service::Configuration);
 
@@ -238,11 +210,12 @@ fn run_until_exit<B, E>(mut core: reactor::Core, service: service::Service<B, E>
 
 		let handler = || {
 			let chain = rpc::apis::chain::Chain::new(service.client(), core.remote());
-			let pool = RpcTransactionPool {
-				inner: service.transaction_pool(),
-				network: service.network(),
-			};
-			rpc::rpc_handler(service.client(), chain, pool, Configuration(config.clone()))
+			rpc::rpc_handler(
+				service.client(),
+				chain,
+				service.transaction_pool(),
+				Configuration(config.clone()),
+			)
 		};
 		(
 			start_server(http_address, |address| rpc::start_http(address, handler())),