95 lines
2.7 KiB
Rust
95 lines
2.7 KiB
Rust
/// Blockchain sync module
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/// Implements ethereum protocol version 63 as specified here:
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/// https://github.com/ethereum/wiki/wiki/Ethereum-Wire-Protocol
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///
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/// Usage example:
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///
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/// ```rust
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/// extern crate ethcore_util as util;
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/// extern crate ethcore;
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/// use std::env;
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/// use std::sync::Arc;
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/// use util::network::{NetworkService, NetworkConfiguration};
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/// use ethcore::client::Client;
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/// use ethcore::sync::EthSync;
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/// use ethcore::ethereum;
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///
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/// fn main() {
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/// let mut service = NetworkService::start(NetworkConfiguration::new()).unwrap();
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/// let dir = env::temp_dir();
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/// let client = Client::new(ethereum::new_frontier(), &dir, service.io().channel()).unwrap();
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/// EthSync::register(&mut service, client);
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/// }
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/// ```
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use std::ops::*;
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use std::sync::*;
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use client::Client;
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use util::network::{NetworkProtocolHandler, NetworkService, NetworkContext, PeerId};
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use sync::chain::ChainSync;
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use service::SyncMessage;
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use sync::io::NetSyncIo;
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mod chain;
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mod io;
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mod range_collection;
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#[cfg(test)]
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mod tests;
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/// Ethereum network protocol handler
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pub struct EthSync {
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/// Shared blockchain client. TODO: this should evetually become an IPC endpoint
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chain: Arc<Client>,
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/// Sync strategy
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sync: RwLock<ChainSync>
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}
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pub use self::chain::SyncStatus;
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impl EthSync {
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/// Creates and register protocol with the network service
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pub fn register(service: &mut NetworkService<SyncMessage>, chain: Arc<Client>) -> Arc<EthSync> {
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let sync = Arc::new(EthSync {
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chain: chain,
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sync: RwLock::new(ChainSync::new()),
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});
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service.register_protocol(sync.clone(), "eth", &[62u8, 63u8]).expect("Error registering eth protocol handler");
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sync
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}
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/// Get sync status
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pub fn status(&self) -> SyncStatus {
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self.sync.read().unwrap().status()
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}
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/// Stop sync
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pub fn stop(&mut self, io: &mut NetworkContext<SyncMessage>) {
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self.sync.write().unwrap().abort(&mut NetSyncIo::new(io, self.chain.deref()));
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}
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/// Restart sync
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pub fn restart(&mut self, io: &mut NetworkContext<SyncMessage>) {
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self.sync.write().unwrap().restart(&mut NetSyncIo::new(io, self.chain.deref()));
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}
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}
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impl NetworkProtocolHandler<SyncMessage> for EthSync {
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fn initialize(&self, _io: &NetworkContext<SyncMessage>) {
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}
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fn read(&self, io: &NetworkContext<SyncMessage>, peer: &PeerId, packet_id: u8, data: &[u8]) {
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self.sync.write().unwrap().on_packet(&mut NetSyncIo::new(io, self.chain.deref()) , *peer, packet_id, data);
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}
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fn connected(&self, io: &NetworkContext<SyncMessage>, peer: &PeerId) {
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self.sync.write().unwrap().on_peer_connected(&mut NetSyncIo::new(io, self.chain.deref()), *peer);
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}
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fn disconnected(&self, io: &NetworkContext<SyncMessage>, peer: &PeerId) {
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self.sync.write().unwrap().on_peer_aborting(&mut NetSyncIo::new(io, self.chain.deref()), *peer);
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}
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}
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