Start setting up a handler, but it's not working right just yet.

We probably want to go back and look at the tokio examples again.

Cargo.toml

@@ -16,6 +16,7 @@ serde = { version = "1.0", features = ["derive"] }	# Serialisation
 serde_derive = "1.0"	# Serialisation helper
 toml = "0.5"			# TOML serialisation module
 
+tokio = { version = "1", features = ["full"] }	# Async runtime
 
 
 psk-client = { version = "0.1", features = ["vendored-openssl"] }	# Pre-shared key TLS support

src/agent/mod.rs

@@ -0,0 +1,40 @@
+use tokio::net::{ TcpListener, TcpStream };
+
+use crate::settings::Settings;
+
+mod peer_connection;
+
+use peer_connection::PeerConnection;
+
+pub struct Agent {
+    settings: Settings,
+    listener: TcpListener,
+    peers: Vec<PeerConnection>
+}
+
+impl Agent {
+    pub async fn new(settings: Settings) {
+        let bind_address = settings.bind_address.clone();
+        let mut agent = Agent {
+            settings,
+            listener: match TcpListener::bind(bind_address.clone()).await {
+                Ok(listener) => listener,
+                Err(error) => panic!("Error: Failed to open socket using the address '{}': {}", bind_address, error)
+            },
+            peers: Vec::new()
+        };
+        
+        loop {
+            let (client, _) = agent.listener.accept().await.unwrap();
+            let peer = PeerConnection {
+                stream: client
+            };
+            agent.peers.push(peer);
+            tokio::spawn(async {
+                let peer_borrow = &peer;
+                peer_borrow.handle().await
+            });
+        }
+        
+    }
+}

src/agent/peer_connection.rs

@@ -0,0 +1,11 @@
+use tokio::net::TcpStream;
+
+pub struct PeerConnection {
+    stream: TcpStream
+}
+
+impl PeerConnection {
+    pub async fn handle(&self) {
+        
+    }
+}

src/main.rs

@@ -9,8 +9,7 @@ use clap::{ App, AppSettings, Arg, SubCommand };
 
 
 mod settings;
-
+mod agent;
-use settings::Settings;
 
 fn main() {
     // Initialise the logging system
@@ -39,6 +38,7 @@ fn main() {
                 .default_value("unix-abstract:systemquery")));
     let args = cli.clone().get_matches();
     
+    
     match args.subcommand_name() {
         Some("agent") => {
             println!("Coming soon :-)");