From 8dede69dee20b812ad1dcab5b374c60232409f4f Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Wed, 13 Oct 2021 12:33:14 +0200
Subject: Fix netapp protocol & adapt basalt to new api

---
 examples/basalt.rs   | 86 ++++++++++++++++++++++++++++++----------------------
 examples/fullmesh.rs |  8 ++++-
 2 files changed, 57 insertions(+), 37 deletions(-)

(limited to 'examples')

diff --git a/examples/basalt.rs b/examples/basalt.rs
index 91f0982..7093e05 100644
--- a/examples/basalt.rs
+++ b/examples/basalt.rs
@@ -7,14 +7,15 @@ use log::{debug, info, warn};
 
 use serde::{Deserialize, Serialize};
 use structopt::StructOpt;
+use async_trait::async_trait;
 
 use sodiumoxide::crypto::auth;
 use sodiumoxide::crypto::sign::ed25519;
 
-use netapp::message::*;
+use netapp::endpoint::*;
 use netapp::peering::basalt::*;
 use netapp::proto::*;
-use netapp::NetApp;
+use netapp::{NetApp, NodeID};
 
 #[derive(StructOpt, Debug)]
 #[structopt(name = "netapp")]
@@ -50,6 +51,12 @@ pub struct Opt {
 	reset_count: usize,
 }
 
+struct Example {
+	netapp: Arc<NetApp>,
+	basalt: Arc<Basalt>,
+	example_endpoint: Arc<Endpoint<ExampleMessage, Self>>,
+}
+
 #[tokio::main]
 async fn main() {
 	env_logger::Builder::new()
@@ -104,46 +111,54 @@ async fn main() {
 		reset_interval: Duration::from_secs(opt.reset_interval),
 		reset_count: opt.reset_count,
 	};
-	let peering = Basalt::new(netapp.clone(), bootstrap_peers, basalt_params);
-
-	netapp.add_msg_handler::<ExampleMessage, _, _>(
-		|_from: ed25519::PublicKey, msg: ExampleMessage| {
-			debug!("Got example message: {:?}, sending example response", msg);
-			async {
-				ExampleResponse {
-					example_field: false,
-				}
-			}
-		},
-	);
+	let basalt = Basalt::new(netapp.clone(), bootstrap_peers, basalt_params);
+
+	let example = Arc::new(Example {
+		netapp: netapp.clone(),
+		basalt,
+		example_endpoint: netapp.endpoint("__netapp/examples/basalt.rs/Example".into()),
+	});
+	example.example_endpoint.set_handler(example.clone());
 
 	let listen_addr = opt.listen_addr.parse().unwrap();
 	let public_addr = opt.public_addr.map(|x| x.parse().unwrap());
 	tokio::join!(
-		sampling_loop(netapp.clone(), peering.clone()),
-		netapp.listen(listen_addr, public_addr),
-		peering.run(),
+		example.clone().sampling_loop(),
+		example.netapp.clone().listen(listen_addr, public_addr),
+		example.basalt.clone().run(),
 	);
 }
 
-async fn sampling_loop(netapp: Arc<NetApp>, basalt: Arc<Basalt>) {
-	loop {
-		tokio::time::sleep(Duration::from_secs(10)).await;
-
-		let peers = basalt.sample(10);
-		for p in peers {
-			debug!("kyev S {}", hex::encode(p));
-
-			let netapp2 = netapp.clone();
-			tokio::spawn(async move {
-				match netapp2
-					.request(&p, ExampleMessage { example_field: 42 }, PRIO_NORMAL)
-					.await
-				{
-					Ok(resp) => debug!("Got example response: {:?}", resp),
-					Err(e) => warn!("Error with example request: {}", e),
-				}
-			});
+impl Example {
+	async fn sampling_loop(self: Arc<Self>) {
+		loop {
+			tokio::time::sleep(Duration::from_secs(10)).await;
+
+			let peers = self.basalt.sample(10);
+			for p in peers {
+				debug!("kyev S {}", hex::encode(p));
+
+				let self2 = self.clone();
+				tokio::spawn(async move {
+					match self2
+						.example_endpoint.call(&p, ExampleMessage { example_field: 42 }, PRIO_NORMAL)
+						.await
+					{
+						Ok(resp) => debug!("Got example response: {:?}", resp),
+						Err(e) => warn!("Error with example request: {}", e),
+					}
+				});
+			}
+		}
+	}
+}
+
+#[async_trait]
+impl EndpointHandler<ExampleMessage> for Example {
+	async fn handle(self: &Arc<Self>, msg: ExampleMessage, _from: NodeID) -> ExampleResponse {
+		debug!("Got example message: {:?}, sending example response", msg);
+		ExampleResponse {
+			example_field: false,
 		}
 	}
 }
@@ -159,6 +174,5 @@ struct ExampleResponse {
 }
 
 impl Message for ExampleMessage {
-	const KIND: MessageKind = 0x99000001;
 	type Response = ExampleResponse;
 }
diff --git a/examples/fullmesh.rs b/examples/fullmesh.rs
index acc0a7b..f40591a 100644
--- a/examples/fullmesh.rs
+++ b/examples/fullmesh.rs
@@ -66,7 +66,7 @@ async fn main() {
 	info!("Node private key: {}", hex::encode(&privkey));
 	info!("Node public key: {}", hex::encode(&privkey.public_key()));
 
-	let netapp = NetApp::new(netid, privkey);
+	let netapp = NetApp::new(netid.clone(), privkey.clone());
 
 	let mut bootstrap_peers = vec![];
 	for peer in opt.bootstrap_peers.iter() {
@@ -81,6 +81,12 @@ async fn main() {
 	let peering = FullMeshPeeringStrategy::new(netapp.clone(), bootstrap_peers);
 
 	let listen_addr = opt.listen_addr.parse().unwrap();
+
+	info!("Add more peers to this mesh by running: fullmesh -n {} -l 127.0.0.1:$((1000 + $RANDOM)) -b {}@{}",
+		hex::encode(&netid),
+		hex::encode(&privkey.public_key()),
+		listen_addr);
+
 	let public_addr = opt.public_addr.map(|x| x.parse().unwrap());
 	tokio::join!(netapp.listen(listen_addr, public_addr), peering.run(),);
 }
-- 
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