dsf-daemon 0.1.3

Distributed Service Framework (DSF) Daemon
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use std::net::{IpAddr, Ipv4Addr, SocketAddr};
use std::sync::{atomic::AtomicBool, Arc};
use std::time::Duration;

extern crate futures;

extern crate async_std;
use async_std::task;

extern crate tracing_subscriber;
use tracing_subscriber::{filter::LevelFilter, FmtSubscriber};

extern crate tracing_futures;
use tracing_futures::Instrument;

extern crate indicatif;
use indicatif::ProgressBar;

extern crate tempdir;
use tempdir::TempDir;

extern crate dsf_core;

extern crate dsf_daemon;
use dsf_daemon::engine::{Engine, Options as EngineOptions};
use dsf_daemon::error::Error;

extern crate dsf_client;
use dsf_client::{Client, Options as ClientOptions};

extern crate dsf_rpc;
use dsf_rpc::{self as rpc};

#[macro_use]
extern crate log;

const NUM_DAEMONS: usize = 3;

#[test]
fn end_to_end() {
    let d = TempDir::new("dsf-e2e").unwrap();
    let d = d.path().to_str().unwrap().to_string();

    let _ = FmtSubscriber::builder()
        .with_max_level(LevelFilter::INFO)
        .try_init();

    let mut daemons = vec![];

    let res: Result<(), Error> = task::block_on(async move {
        let mut config = EngineOptions::default();
        config.database_file = format!("{}/dsf-e2e.db", d);
        config.bind_addresses = vec![SocketAddr::new(
            IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)),
            11100,
        )];
        config.daemon_socket = format!("{}/dsf.sock", d);

        let running = Arc::new(AtomicBool::new(true));

        // Create daemons
        info!("Creating daemons");
        let bar = ProgressBar::new(NUM_DAEMONS as u64);
        for i in 0..NUM_DAEMONS {
            let c = config.with_suffix(i);
            let c1 = c.clone();

            let addr = c.daemon_socket.clone();
            let mut e = Engine::new(c1).await.expect("Error creating engine");

            // Build and run daemon
            let r = running.clone();
            let handle = task::spawn(
                async move {
                    e.run(r).await.unwrap();
                }
                .instrument(tracing::debug_span!("instance", "{}", addr)),
            );

            // Create client
            let mut client = Client::new(&ClientOptions::new(&addr, Duration::from_secs(1)))
                .expect("Error connecting to client");

            // Fetch client status and ID
            let status = client.status().await.expect("Error fetching client info");
            let id = status.id;

            // Add the new daemon to the list
            daemons.push((id, c, client, handle));

            bar.inc(1);
        }
        bar.finish();
        info!("created daemons");

        info!("connecting to peers");
        let base_config = daemons[0].1.clone();

        let bar = ProgressBar::new((NUM_DAEMONS - 1) as u64);
        for (_id, _config, client, _) in &mut daemons[1..] {
            client
                .connect(rpc::ConnectOptions {
                    address: base_config.bind_addresses[0],
                    id: None,
                    timeout: Some(Duration::from_secs(10)),
                })
                .await
                .expect("connecting failed");

            bar.inc(1);
        }
        bar.finish();
        info!("connecting complete");

        let mut services = vec![];

        info!("creating services");
        let bar = ProgressBar::new(NUM_DAEMONS as u64);
        for (_id, _config, client, _) in &mut daemons[..] {
            let s = client
                .create(rpc::CreateOptions::default().and_register())
                .await
                .expect("creation failed");
            services.push(s);

            bar.inc(1);
        }
        bar.finish();
        info!("created services: {:?}", services);

        info!("searching for services");
        let bar = ProgressBar::new(NUM_DAEMONS as u64);
        for i in 0..NUM_DAEMONS {
            let service_handle = &services[NUM_DAEMONS - i - 1].clone();

            let (_id, _config, client, _handle) = &mut daemons[i];

            client
                .locate(rpc::LocateOptions {
                    id: service_handle.id.clone(),
                    local_only: false,
                })
                .await
                .expect("search failed");

            bar.inc(1);
        }
        bar.finish();
        info!("searching for services");

        info!("test complete, exiting");

        Ok(())
    });

    res.unwrap();
}