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fullnode.rs
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fullnode.rs
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extern crate atty;
extern crate env_logger;
extern crate getopts;
extern crate serde_json;
extern crate solana;
#[macro_use]
extern crate log;
use atty::{is, Stream};
use getopts::Options;
use solana::bank::Bank;
use solana::crdt::ReplicatedData;
use solana::entry::Entry;
use solana::payment_plan::PaymentPlan;
use solana::server::Server;
use solana::transaction::Instruction;
use std::env;
use std::fs::File;
use std::io::{stdin, stdout, Read, Write};
use std::net::{IpAddr, Ipv4Addr, SocketAddr, UdpSocket};
use std::process::exit;
use std::sync::atomic::AtomicBool;
use std::sync::Arc;
//use std::time::Duration;
fn print_usage(program: &str, opts: Options) {
let mut brief = format!("Usage: cat <transaction.log> | {} [options]\n\n", program);
brief += " Run a Solana node to handle transactions and\n";
brief += " write a new transaction log to stdout.\n";
brief += " Takes existing transaction log from stdin.";
print!("{}", opts.usage(&brief));
}
fn main() {
env_logger::init();
let mut opts = Options::new();
opts.optflag("h", "help", "print help");
opts.optopt("l", "", "run with the identity found in FILE", "FILE");
opts.optopt("v", "", "validate; find leader's identity in FILE", "FILE");
opts.optopt(
"o",
"",
"output log to FILE, defaults to stdout (ignored by validators)",
"FILE",
);
let args: Vec<String> = env::args().collect();
let matches = match opts.parse(&args[1..]) {
Ok(m) => m,
Err(e) => {
eprintln!("{}", e);
exit(1);
}
};
if matches.opt_present("h") {
let program = args[0].clone();
print_usage(&program, opts);
return;
}
if is(Stream::Stdin) {
eprintln!("nothing found on stdin, expected a log file");
exit(1);
}
let mut buffer = String::new();
let num_bytes = stdin().read_to_string(&mut buffer).unwrap();
if num_bytes == 0 {
eprintln!("empty file on stdin, expected a log file");
exit(1);
}
eprintln!("Initializing...");
let mut entries = buffer.lines().map(|line| {
serde_json::from_str(&line).unwrap_or_else(|e| {
eprintln!("failed to parse json: {}", e);
exit(1);
})
});
eprintln!("done parsing...");
// The first item in the ledger is required to be an entry with zero num_hashes,
// which implies its id can be used as the ledger's seed.
let entry0 = entries.next().unwrap();
// The second item in the ledger is a special transaction where the to and from
// fields are the same. That entry should be treated as a deposit, not a
// transfer to oneself.
let entry1: Entry = entries.next().unwrap();
let tx = &entry1.transactions[0];
let deposit = if let Instruction::NewContract(contract) = &tx.instruction {
contract.plan.final_payment()
} else {
None
};
eprintln!("creating bank...");
let bank = Bank::new_from_deposit(&deposit.unwrap());
bank.register_entry_id(&entry0.id);
bank.register_entry_id(&entry1.id);
eprintln!("processing entries...");
bank.process_entries(entries).expect("process_entries");
eprintln!("creating networking stack...");
let exit = Arc::new(AtomicBool::new(false));
let bind_addr = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 8000);
let mut repl_data = ReplicatedData::new_leader(&bind_addr);
if matches.opt_present("l") {
let path = matches.opt_str("l").unwrap();
if let Ok(file) = File::open(path.clone()) {
if let Ok(data) = serde_json::from_reader(file) {
repl_data = data;
} else {
warn!("failed to parse leader {}, generating new identity", path);
}
}
}
let threads = if matches.opt_present("v") {
eprintln!("starting validator... {}", repl_data.requests_addr);
let path = matches.opt_str("v").unwrap();
let file = File::open(path).expect("file");
let leader = serde_json::from_reader(file).expect("parse");
let s = Server::new_validator(
bank,
repl_data.clone(),
UdpSocket::bind(repl_data.requests_addr).unwrap(),
UdpSocket::bind("0.0.0.0:0").unwrap(),
UdpSocket::bind(repl_data.replicate_addr).unwrap(),
UdpSocket::bind(repl_data.gossip_addr).unwrap(),
UdpSocket::bind(repl_data.repair_addr).unwrap(),
leader,
exit.clone(),
);
s.thread_hdls
} else {
eprintln!("starting leader... {}", repl_data.requests_addr);
repl_data.current_leader_id = repl_data.id.clone();
let outfile: Box<Write + Send + 'static> = if matches.opt_present("o") {
let path = matches.opt_str("o").unwrap();
Box::new(
File::create(&path).expect(&format!("unable to open output file \"{}\"", path)),
)
} else {
Box::new(stdout())
};
let server = Server::new_leader(
bank,
//Some(Duration::from_millis(1000)),
None,
repl_data.clone(),
UdpSocket::bind(repl_data.requests_addr).unwrap(),
UdpSocket::bind(repl_data.transactions_addr).unwrap(),
UdpSocket::bind("0.0.0.0:0").unwrap(),
UdpSocket::bind("0.0.0.0:0").unwrap(),
UdpSocket::bind(repl_data.gossip_addr).unwrap(),
exit.clone(),
outfile,
);
server.thread_hdls
};
eprintln!("Ready. Listening on {}", repl_data.transactions_addr);
for t in threads {
t.join().expect("join");
}
}