openethereum/parity/io_handler.rs

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// 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/>.
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use std::sync::{Arc, Weak};
use ethcore::client::Client;
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use ethcore::service::{NetSyncMessage, SyncMessage};
use ethsync::EthSync;
use ethcore::account_provider::AccountProvider;
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use util::{TimerToken, IoHandler, IoContext, NetworkService, NetworkIoMessage};
use informant::Informant;
const INFO_TIMER: TimerToken = 0;
pub struct ClientIoHandler {
pub client: Arc<Client>,
pub sync: Arc<EthSync>,
pub accounts: Arc<AccountProvider>,
pub info: Informant,
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pub network: Weak<NetworkService<SyncMessage>>,
}
impl IoHandler<NetSyncMessage> for ClientIoHandler {
fn initialize(&self, io: &IoContext<NetSyncMessage>) {
io.register_timer(INFO_TIMER, 5000).expect("Error registering timer");
}
fn timeout(&self, _io: &IoContext<NetSyncMessage>, timer: TimerToken) {
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if let INFO_TIMER = timer {
if let Some(net) = self.network.upgrade() {
self.info.tick(&self.client, Some((&self.sync, &net)));
}
}
}
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fn message(&self, _io: &IoContext<NetSyncMessage>, message: &NetSyncMessage) {
match *message {
NetworkIoMessage::User(SyncMessage::StartNetwork) => {
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if let Some(network) = self.network.upgrade() {
network.start().unwrap_or_else(|e| warn!("Error starting network: {:?}", e));
EthSync::register(&*network, self.sync.clone()).unwrap_or_else(|e| warn!("Error registering eth protocol handler: {}", e));
}
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},
NetworkIoMessage::User(SyncMessage::StopNetwork) => {
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if let Some(network) = self.network.upgrade() {
network.stop().unwrap_or_else(|e| warn!("Error stopping network: {:?}", e));
}
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},
_ => {/* Ignore other messages */},
}
}
}