light client sync stubs

sync/src/lib.rs

@@ -50,6 +50,7 @@ mod chain;
 mod blocks;
 mod sync_io;
 mod snapshot;
+mod light;
 
 #[cfg(test)]
 mod tests;

sync/src/light/mod.rs

@@ -0,0 +1,27 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! LES Protocol Version 1 implementation.
+//!
+//! This uses a "Provider" to answer requests.
+
+use ethcore::light::{Client, Provider};
+
+/// This handles synchronization of the header chain for a light client.
+pub struct Chain {
+	client: Client,
+	peers: Vec<Peer>,
+}

sync/src/sync_io.rs

@@ -18,7 +18,7 @@ use network::{NetworkContext, PeerId, PacketId, NetworkError};
 use ethcore::client::BlockChainClient;
 use ethcore::snapshot::SnapshotService;
 
-/// IO interface for the syning handler.
+/// IO interface for the syncing handler.
 /// Provides peer connection management and an interface to the blockchain client.
 // TODO: ratings
 pub trait SyncIo {
@@ -38,7 +38,7 @@ pub trait SyncIo {
 	fn peer_info(&self, peer_id: PeerId) -> String {
 		peer_id.to_string()
 	}
-	/// Maximum mutuallt supported ETH protocol version
+	/// Maximum mutually supported ETH protocol version
 	fn eth_protocol_version(&self, peer_id: PeerId) -> u8;
 	/// Returns if the chain block queue empty
 	fn is_chain_queue_empty(&self) -> bool {