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//! The `server` module hosts all the server microservices.
use bank::Bank;
use crdt::{Crdt, ReplicatedData};
use ncp::Ncp;
use packet;
use rpu::Rpu;
use std::io::Write;
use std::net::UdpSocket;
use std::sync::atomic::AtomicBool;
use std::sync::{Arc, RwLock};
use std::thread::JoinHandle;
use std::time::Duration;
use streamer;
use tpu::Tpu;
use tvu::Tvu;
pub struct Server {
pub thread_hdls: Vec<JoinHandle<()>>,
}
impl Server {
/// Create a server instance acting as a leader.
///
/// ```text
/// .---------------------.
/// | Leader |
/// | |
/// .--------. | .-----. |
/// | |---->| | |
/// | Client | | | RPU | |
/// | |<----| | |
/// `----+---` | `-----` |
/// | | ^ |
/// | | | |
/// | | .--+---. |
/// | | | Bank | |
/// | | `------` |
/// | | ^ |
/// | | | | .------------.
/// | | .--+--. .-----. | | |
/// `-------->| TPU +-->| NCP +------>| Validators |
/// | `-----` `-----` | | |
/// | | `------------`
/// `---------------------`
/// ```
pub fn new_leader<W: Write + Send + 'static>(
bank: Bank,
tick_duration: Option<Duration>,
me: ReplicatedData,
requests_socket: UdpSocket,
transactions_socket: UdpSocket,
broadcast_socket: UdpSocket,
respond_socket: UdpSocket,
gossip_socket: UdpSocket,
exit: Arc<AtomicBool>,
writer: W,
) -> Self {
let bank = Arc::new(bank);
let mut thread_hdls = vec![];
let rpu = Rpu::new(bank.clone(), requests_socket, respond_socket, exit.clone());
thread_hdls.extend(rpu.thread_hdls);
let blob_recycler = packet::BlobRecycler::default();
let tpu = Tpu::new(
bank.clone(),
tick_duration,
transactions_socket,
blob_recycler.clone(),
exit.clone(),
writer,
);
thread_hdls.extend(tpu.thread_hdls);
let crdt = Arc::new(RwLock::new(Crdt::new(me)));
let window = streamer::default_window();
let gossip_send_socket = UdpSocket::bind("0.0.0.0:0").expect("bind 0");
let ncp = Ncp::new(
crdt.clone(),
window.clone(),
gossip_socket,
gossip_send_socket,
exit.clone(),
).expect("Ncp::new");
thread_hdls.extend(ncp.thread_hdls);
let t_broadcast = streamer::broadcaster(
broadcast_socket,
exit.clone(),
crdt,
window,
blob_recycler.clone(),
tpu.blob_receiver,
);
thread_hdls.extend(vec![t_broadcast]);
Server { thread_hdls }
}
/// Create a server instance acting as a validator.
///
/// ```text
/// .-------------------------------.
/// | Validator |
/// | |
/// .--------. | .-----. |
/// | |-------------->| | |
/// | Client | | | RPU | |
/// | |<--------------| | |
/// `--------` | `-----` |
/// | ^ |
/// | | |
/// | .--+---. |
/// | | Bank | |
/// | `------` |
/// | ^ |
/// .--------. | | | .------------.
/// | | | .--+--. | | |
/// | Leader |<------------->| TVU +<--------------->| |
/// | | | `-----` | | Validators |
/// | | | ^ | | |
/// | | | | | | |
/// | | | .--+--. | | |
/// | |<------------->| NCP +<--------------->| |
/// | | | `-----` | | |
/// `--------` | | `------------`
/// `-------------------------------`
/// ```
pub fn new_validator(
bank: Bank,
me: ReplicatedData,
requests_socket: UdpSocket,
respond_socket: UdpSocket,
replicate_socket: UdpSocket,
gossip_listen_socket: UdpSocket,
repair_socket: UdpSocket,
entry_point: ReplicatedData,
exit: Arc<AtomicBool>,
) -> Self {
let bank = Arc::new(bank);
let mut thread_hdls = vec![];
let rpu = Rpu::new(bank.clone(), requests_socket, respond_socket, exit.clone());
thread_hdls.extend(rpu.thread_hdls);
let crdt = Arc::new(RwLock::new(Crdt::new(me)));
crdt.write()
.expect("'crdt' write lock before insert() in pub fn replicate")
.insert(&entry_point);
let window = streamer::default_window();
let gossip_send_socket = UdpSocket::bind("0.0.0.0:0").expect("bind 0");
let retransmit_socket = UdpSocket::bind("0.0.0.0:0").expect("bind 0");
let ncp = Ncp::new(
crdt.clone(),
window.clone(),
gossip_listen_socket,
gossip_send_socket,
exit.clone(),
).expect("Ncp::new");
let tvu = Tvu::new(
bank.clone(),
crdt.clone(),
window.clone(),
replicate_socket,
repair_socket,
retransmit_socket,
exit.clone(),
);
thread_hdls.extend(tvu.thread_hdls);
thread_hdls.extend(ncp.thread_hdls);
Server { thread_hdls }
}
}
#[cfg(test)]
mod tests {
use bank::Bank;
use crdt::TestNode;
use mint::Mint;
use server::Server;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::Arc;
#[test]
fn validator_exit() {
let tn = TestNode::new();
let alice = Mint::new(10_000);
let bank = Bank::new(&alice);
let exit = Arc::new(AtomicBool::new(false));
let v = Server::new_validator(
bank,
tn.data.clone(),
tn.sockets.requests,
tn.sockets.respond,
tn.sockets.replicate,
tn.sockets.gossip,
tn.sockets.repair,
tn.data,
exit.clone(),
);
exit.store(true, Ordering::Relaxed);
for t in v.thread_hdls {
t.join().unwrap();
}
}
}