openethereum/parity/main.rs
2016-02-10 22:25:19 +03:00

304 lines
9.3 KiB
Rust

// 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/>.
//! Ethcore client application.
#![warn(missing_docs)]
#![feature(plugin)]
#![plugin(docopt_macros)]
#![plugin(clippy)]
extern crate docopt;
extern crate rustc_serialize;
extern crate ethcore_util as util;
extern crate ethcore;
extern crate ethsync;
extern crate log as rlog;
extern crate env_logger;
extern crate ctrlc;
extern crate fdlimit;
extern crate target_info;
#[cfg(feature = "rpc")]
extern crate ethcore_rpc as rpc;
use std::net::{SocketAddr};
use std::env;
use rlog::{LogLevelFilter};
use env_logger::LogBuilder;
use ctrlc::CtrlC;
use util::*;
use util::panics::MayPanic;
use ethcore::spec::*;
use ethcore::client::*;
use ethcore::service::{ClientService, NetSyncMessage};
use ethcore::ethereum;
use ethcore::blockchain::CacheSize;
use ethsync::EthSync;
use target_info::Target;
docopt!(Args derive Debug, "
Parity. Ethereum Client.
By Wood/Paronyan/Kotewicz/Drwięga/Volf.
Copyright 2015, 2016 Ethcore (UK) Limited
Usage:
parity [options] [ <enode>... ]
Options:
--chain CHAIN Specify the blockchain type. CHAIN may be either a JSON chain specification file
or frontier, mainnet, morden, or testnet [default: frontier].
--listen-address URL Specify the IP/port on which to listen for peers [default: 0.0.0.0:30304].
--public-address URL Specify the IP/port on which peers may connect [default: 0.0.0.0:30304].
--address URL Equivalent to --listen-address URL --public-address URL.
--upnp Use UPnP to try to figure out the correct network settings.
--cache-pref-size BYTES Specify the prefered size of the blockchain cache in bytes [default: 16384].
--cache-max-size BYTES Specify the maximum size of the blockchain cache in bytes [default: 262144].
-j --jsonrpc Enable the JSON-RPC API sever.
--jsonrpc-url URL Specify URL for JSON-RPC API server [default: 127.0.0.1:8545].
-l --logging LOGGING Specify the logging level.
-v --version Show information about version.
-h --help Show this screen.
", flag_cache_pref_size: usize, flag_cache_max_size: usize, flag_address: Option<String>);
fn setup_log(init: &str) {
let mut builder = LogBuilder::new();
builder.filter(None, LogLevelFilter::Info);
if env::var("RUST_LOG").is_ok() {
builder.parse(&env::var("RUST_LOG").unwrap());
}
builder.parse(init);
builder.init().unwrap();
}
#[cfg(feature = "rpc")]
fn setup_rpc_server(client: Arc<Client>, sync: Arc<EthSync>, url: &str) {
use rpc::v1::*;
let mut server = rpc::HttpServer::new(1);
server.add_delegate(Web3Client::new().to_delegate());
server.add_delegate(EthClient::new(client.clone(), sync.clone()).to_delegate());
server.add_delegate(EthFilterClient::new(client).to_delegate());
server.add_delegate(NetClient::new(sync).to_delegate());
server.start_async(url);
}
#[cfg(not(feature = "rpc"))]
fn setup_rpc_server(_client: Arc<Client>, _sync: Arc<EthSync>, _url: &str) {
}
fn print_version() {
println!("\
Parity version {} ({}-{}-{})
Copyright 2015, 2016 Ethcore (UK) Limited
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
By Wood/Paronyan/Kotewicz/Drwięga/Volf.\
", env!("CARGO_PKG_VERSION"), Target::arch(), Target::env(), Target::os());
}
struct Configuration {
args: Args
}
impl Configuration {
fn parse() -> Self {
Configuration {
args: Args::docopt().decode().unwrap_or_else(|e| e.exit())
}
}
fn get_spec(&self) -> Spec {
match self.args.flag_chain.as_ref() {
"frontier" | "mainnet" => ethereum::new_frontier(),
"morden" | "testnet" => ethereum::new_morden(),
"olympic" => ethereum::new_olympic(),
f => Spec::from_json_utf8(contents(f).expect("Couldn't read chain specification file. Sure it exists?").as_ref()),
}
}
fn get_init_nodes(&self, spec: &Spec) -> Vec<String> {
match self.args.arg_enode.len() {
0 => spec.nodes().clone(),
_ => self.args.arg_enode.clone(),
}
}
fn get_net_addresses(&self) -> (SocketAddr, SocketAddr) {
let listen_address;
let public_address;
match self.args.flag_address {
None => {
listen_address = SocketAddr::from_str(self.args.flag_listen_address.as_ref()).expect("Invalid listen address given with --listen-address");
public_address = SocketAddr::from_str(self.args.flag_public_address.as_ref()).expect("Invalid public address given with --public-address");
}
Some(ref a) => {
public_address = SocketAddr::from_str(a.as_ref()).expect("Invalid listen/public address given with --address");
listen_address = public_address.clone();
}
};
(listen_address, public_address)
}
}
fn wait_for_exit(client_service: &ClientService) {
let exit = Arc::new(Condvar::new());
// Handle possible exits
let e = exit.clone();
CtrlC::set_handler(move || { e.notify_all(); });
let e = exit.clone();
client_service.on_panic(move |_reason| { e.notify_all(); });
// Wait for signal
let mutex = Mutex::new(());
let _ = exit.wait(mutex.lock().unwrap()).unwrap();
}
fn main() {
let conf = Configuration::parse();
if conf.args.flag_version {
print_version();
return;
}
let spec = conf.get_spec();
// Setup logging
setup_log(&conf.args.flag_logging);
// Raise fdlimit
unsafe { ::fdlimit::raise_fd_limit(); }
// Configure network
let mut net_settings = NetworkConfiguration::new();
net_settings.nat_enabled = conf.args.flag_upnp;
net_settings.boot_nodes = conf.get_init_nodes(&spec);
let (listen, public) = conf.get_net_addresses();
net_settings.listen_address = listen;
net_settings.public_address = public;
// Build client
let mut service = ClientService::start(spec, net_settings).unwrap();
let client = service.client().clone();
client.configure_cache(conf.args.flag_cache_pref_size, conf.args.flag_cache_max_size);
// Sync
let sync = EthSync::register(service.network(), client);
// Setup rpc
if conf.args.flag_jsonrpc {
setup_rpc_server(service.client(), sync.clone(), &conf.args.flag_jsonrpc_url);
}
// Register IO handler
let io_handler = Arc::new(ClientIoHandler {
client: service.client(),
info: Default::default(),
sync: sync
});
service.io().register_handler(io_handler).expect("Error registering IO handler");
// Handle exit
wait_for_exit(&service);
}
struct Informant {
chain_info: RwLock<Option<BlockChainInfo>>,
cache_info: RwLock<Option<CacheSize>>,
report: RwLock<Option<ClientReport>>,
}
impl Default for Informant {
fn default() -> Self {
Informant {
chain_info: RwLock::new(None),
cache_info: RwLock::new(None),
report: RwLock::new(None),
}
}
}
impl Informant {
pub fn tick(&self, client: &Client, sync: &EthSync) {
// 5 seconds betwen calls. TODO: calculate this properly.
let dur = 5usize;
let chain_info = client.chain_info();
let queue_info = client.queue_info();
let cache_info = client.cache_info();
let report = client.report();
let sync_info = sync.status();
if let (_, &Some(ref last_cache_info), &Some(ref last_report)) = (self.chain_info.read().unwrap().deref(), self.cache_info.read().unwrap().deref(), self.report.read().unwrap().deref()) {
println!("[ {} {} ]---[ {} blk/s | {} tx/s | {} gas/s //··· {}/{} peers, {} downloaded, {}+{} queued ···// {} ({}) bl {} ({}) ex ]",
chain_info.best_block_number,
chain_info.best_block_hash,
(report.blocks_imported - last_report.blocks_imported) / dur,
(report.transactions_applied - last_report.transactions_applied) / dur,
(report.gas_processed - last_report.gas_processed) / From::from(dur),
sync_info.num_active_peers,
sync_info.num_peers,
sync_info.blocks_received,
queue_info.unverified_queue_size,
queue_info.verified_queue_size,
cache_info.blocks,
cache_info.blocks as isize - last_cache_info.blocks as isize,
cache_info.block_details,
cache_info.block_details as isize - last_cache_info.block_details as isize
);
}
*self.chain_info.write().unwrap().deref_mut() = Some(chain_info);
*self.cache_info.write().unwrap().deref_mut() = Some(cache_info);
*self.report.write().unwrap().deref_mut() = Some(report);
}
}
const INFO_TIMER: TimerToken = 0;
struct ClientIoHandler {
client: Arc<Client>,
sync: Arc<EthSync>,
info: Informant,
}
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) {
if INFO_TIMER == timer {
self.info.tick(&self.client, &self.sync);
}
}
}
/// Parity needs at least 1 test to generate coverage reports correctly.
#[test]
fn if_works() {
}