openethereum/src/sync/io.rs

54 lines
1.6 KiB
Rust

use client::BlockChainClient;
use util::network::{HandlerIo, PeerId, PacketId,};
use util::error::UtilError;
/// IO interface for the syning handler.
/// Provides peer connection management and an interface to the blockchain client.
// TODO: ratings
pub trait SyncIo {
/// Disable a peer
fn disable_peer(&mut self, peer_id: &PeerId);
/// Respond to current request with a packet. Can be called from an IO handler for incoming packet.
fn respond(&mut self, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError>;
/// Send a packet to a peer.
fn send(&mut self, peer_id: PeerId, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError>;
/// Get the blockchain
fn chain<'s>(&'s mut self) -> &'s mut BlockChainClient;
}
/// Wraps `HandlerIo` and the blockchain client
pub struct NetSyncIo<'s, 'h> where 'h:'s {
network: &'s mut HandlerIo<'h>,
chain: &'s mut BlockChainClient
}
impl<'s, 'h> NetSyncIo<'s, 'h> {
/// Creates a new instance from the `HandlerIo` and the blockchain client reference.
pub fn new(network: &'s mut HandlerIo<'h>, chain: &'s mut BlockChainClient) -> NetSyncIo<'s,'h> {
NetSyncIo {
network: network,
chain: chain,
}
}
}
impl<'s, 'h> SyncIo for NetSyncIo<'s, 'h> {
fn disable_peer(&mut self, peer_id: &PeerId) {
self.network.disable_peer(*peer_id);
}
fn respond(&mut self, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError>{
self.network.respond(packet_id, data)
}
fn send(&mut self, peer_id: PeerId, packet_id: PacketId, data: Vec<u8>) -> Result<(), UtilError>{
self.network.send(peer_id, packet_id, data)
}
fn chain<'a>(&'a mut self) -> &'a mut BlockChainClient {
self.chain
}
}