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#[cfg(test)]
#[macro_use]
extern crate hex_literal;
pub mod api;
pub mod blockchain;
pub mod types;
pub mod miner;
pub mod network;
use blockchain::Blockchain;
use clap::clap_app;
use smol::channel;
use log::{error, info};
use api::Server as ApiServer;
use std::net;
use std::process;
use std::sync::{Arc, Mutex};
use std::thread;
use std::time;
fn main() {
// parse command line arguments
let matches = clap_app!(Bitcoin =>
(version: "0.1")
(about: "Bitcoin client")
(@arg verbose: -v ... "Increases the verbosity of logging")
(@arg peer_addr: --p2p [ADDR] default_value("127.0.0.1:6000") "Sets the IP address and the port of the P2P server")
(@arg api_addr: --api [ADDR] default_value("127.0.0.1:7000") "Sets the IP address and the port of the API server")
(@arg known_peer: -c --connect ... [PEER] "Sets the peers to connect to at start")
(@arg p2p_workers: --("p2p-workers") [INT] default_value("4") "Sets the number of worker threads for P2P server")
)
.get_matches();
// init logger
let verbosity = matches.occurrences_of("verbose") as usize;
stderrlog::new().verbosity(verbosity).init().unwrap();
let blockchain = Blockchain::new();
let blockchain = Arc::new(Mutex::new(blockchain));
// parse p2p server address
let p2p_addr = matches
.value_of("peer_addr")
.unwrap()
.parse::<net::SocketAddr>()
.unwrap_or_else(|e| {
error!("Error parsing P2P server address: {}", e);
process::exit(1);
});
// parse api server address
let api_addr = matches
.value_of("api_addr")
.unwrap()
.parse::<net::SocketAddr>()
.unwrap_or_else(|e| {
error!("Error parsing API server address: {}", e);
process::exit(1);
});
// create channels between server and worker
let (msg_tx, msg_rx) = channel::bounded(10000);
// start the p2p server
let (server_ctx, server) = network::server::new(p2p_addr, msg_tx).unwrap();
server_ctx.start().unwrap();
// start the worker
let p2p_workers = matches
.value_of("p2p_workers")
.unwrap()
.parse::<usize>()
.unwrap_or_else(|e| {
error!("Error parsing P2P workers: {}", e);
process::exit(1);
});
let worker_ctx = network::worker::Worker::new(
p2p_workers,
msg_rx,
&server,
);
worker_ctx.start();
// start the miner
let (miner_ctx, miner, finished_block_chan) = miner::new();
let miner_worker_ctx = miner::worker::Worker::new(&server, finished_block_chan);
miner_ctx.start();
miner_worker_ctx.start();
// connect to known peers
if let Some(known_peers) = matches.values_of("known_peer") {
let known_peers: Vec<String> = known_peers.map(|x| x.to_owned()).collect();
let server = server.clone();
thread::spawn(move || {
for peer in known_peers {
loop {
let addr = match peer.parse::<net::SocketAddr>() {
Ok(x) => x,
Err(e) => {
error!("Error parsing peer address {}: {}", &peer, e);
break;
}
};
match server.connect(addr) {
Ok(_) => {
info!("Connected to outgoing peer {}", &addr);
break;
}
Err(e) => {
error!(
"Error connecting to peer {}, retrying in one second: {}",
addr, e
);
thread::sleep(time::Duration::from_millis(1000));
continue;
}
}
}
}
});
}
// start the API server
ApiServer::start(
api_addr,
&miner,
&server,
&blockchain,
);
loop {
std::thread::park();
}
}