extern crate futures;
extern crate getopts;
extern crate isatty;
extern crate rayon;
extern crate serde_json;
extern crate solana;
use futures::Future;
use getopts::Options;
use isatty::stdin_isatty;
use rayon::prelude::*;
use solana::mint::MintDemo;
use solana::signature::{GenKeys, KeyPairUtil};
use solana::thin_client::ThinClient;
use solana::transaction::Transaction;
use std::env;
use std::io::{stdin, Read};
use std::net::{SocketAddr, UdpSocket};
use std::process::exit;
use std::thread::sleep;
use std::time::Duration;
use std::time::Instant;
fn print_usage(program: &str, opts: Options) {
let mut brief = format!("Usage: cat <mint.json> | {} [options]\n\n", program);
brief += " Solana client demo creates a number of transactions and\n";
brief += " sends them to a target node.";
brief += " Takes json formatted mint file to stdin.";
print!("{}", opts.usage(&brief));
}
fn main() {
let mut threads = 4usize;
let mut server_addr: String = "127.0.0.1:8000".to_string();
let mut requests_addr: String = "127.0.0.1:8010".to_string();
let mut opts = Options::new();
opts.optopt("s", "", "server address", "host:port");
opts.optopt("c", "", "client address", "host:port");
opts.optopt("t", "", "number of threads", &format!("{}", threads));
opts.optflag("h", "help", "print help");
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 matches.opt_present("s") {
server_addr = matches.opt_str("s").unwrap();
}
if matches.opt_present("c") {
requests_addr = matches.opt_str("c").unwrap();
}
if matches.opt_present("t") {
threads = matches.opt_str("t").unwrap().parse().expect("integer");
}
let mut events_addr: SocketAddr = requests_addr.parse().unwrap();
let requests_port = events_addr.port();
events_addr.set_port(requests_port + 1);
if stdin_isatty() {
eprintln!("nothing found on stdin, expected a json 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 json file");
exit(1);
}
println!("Parsing stdin...");
let demo: MintDemo = serde_json::from_str(&buffer).unwrap_or_else(|e| {
eprintln!("failed to parse json: {}", e);
exit(1);
});
println!("Binding to {}", requests_addr);
let requests_socket = UdpSocket::bind(&requests_addr).unwrap();
requests_socket
.set_read_timeout(Some(Duration::new(5, 0)))
.unwrap();
let events_socket = UdpSocket::bind(&events_addr).unwrap();
let requests_addr: SocketAddr = server_addr.parse().unwrap();
let requests_port = requests_addr.port();
let mut events_server_addr = requests_addr.clone();
events_server_addr.set_port(requests_port + 3);
let mut client = ThinClient::new(
requests_addr,
requests_socket,
events_server_addr,
events_socket,
);
println!("Get last ID...");
let last_id = client.get_last_id().wait().unwrap();
println!("Got last ID {:?}", last_id);
let rnd = GenKeys::new(demo.mint.keypair().public_key_bytes());
println!("Creating keypairs...");
let txs = demo.num_accounts / 2;
let keypairs = rnd.gen_n_keypairs(demo.num_accounts);
let keypair_pairs: Vec<_> = keypairs.chunks(2).collect();
println!("Signing transactions...");
let now = Instant::now();
let transactions: Vec<_> = keypair_pairs
.into_par_iter()
.map(|chunk| Transaction::new(&chunk[0], chunk[1].pubkey(), 1, last_id))
.collect();
let mut duration = now.elapsed();
let ns = duration.as_secs() * 1_000_000_000 + u64::from(duration.subsec_nanos());
let bsps = txs as f64 / ns as f64;
let nsps = ns as f64 / txs as f64;
println!(
"Done. {} thousand signatures per second, {}us per signature",
bsps * 1_000_000_f64,
nsps / 1_000_f64
);
let initial_tx_count = client.transaction_count();
println!("initial count {}", initial_tx_count);
println!("Transfering {} transactions in {} batches", txs, threads);
let now = Instant::now();
let sz = transactions.len() / threads;
let chunks: Vec<_> = transactions.chunks(sz).collect();
chunks.into_par_iter().for_each(|trs| {
println!("Transferring 1 unit {} times... to", trs.len());
let requests_addr: SocketAddr = server_addr.parse().unwrap();
let mut requests_cb_addr = requests_addr.clone();
requests_cb_addr.set_port(0);
let requests_socket = UdpSocket::bind(requests_cb_addr).unwrap();
requests_socket
.set_read_timeout(Some(Duration::new(5, 0)))
.unwrap();
let mut events_addr: SocketAddr = requests_addr.clone();
events_addr.set_port(0);
let events_socket = UdpSocket::bind(&events_addr).unwrap();
let client = ThinClient::new(
requests_addr,
requests_socket,
events_server_addr,
events_socket,
);
for tr in trs {
client.transfer_signed(tr.clone()).unwrap();
}
});
println!("Waiting for transactions to complete...",);
let mut tx_count;
for _ in 0..10 {
tx_count = client.transaction_count();
duration = now.elapsed();
let txs = tx_count - initial_tx_count;
println!("Transactions processed {}", txs);
let ns = duration.as_secs() * 1_000_000_000 + u64::from(duration.subsec_nanos());
let tps = (txs * 1_000_000_000) as f64 / ns as f64;
println!("{} tps", tps);
sleep(Duration::new(1, 0));
}
}