Initial Hotplug support (#8)

This allows to dynamically add clients when an event is received from an unknown IP address.

The user is asked to confirm any unknown connection from new clients.

Currently the back-ends for event producing and consuming are not yet notified, so events will not be received and sent to the newly created clients.

src/main.rs

@@ -1,4 +1,4 @@
-use std::{sync::mpsc, process, env};
+use std::{sync::{mpsc, Arc}, process, env};
 
 use lan_mouse::{
     client::ClientManager,
@@ -32,7 +32,7 @@ pub fn main() {
     let (consume_tx, consume_rx) = mpsc::sync_channel(128);
 
     // create client manager
-    let mut client_manager = match ClientManager::new(&config) {
+    let client_manager = match ClientManager::new(&config) {
         Err(e) => {
             eprintln!("{e}");
             process::exit(1);
@@ -73,7 +73,7 @@ pub fn main() {
             process::exit(1);
         }
     };
-    let (receiver, sender) = match event_server.run(&mut client_manager, produce_rx, consume_tx) {
+    let (receiver, sender) = match event_server.run(Arc::new(client_manager), produce_rx, consume_tx) {
         Ok((r,s)) => (r,s),
         Err(e) => {
             eprintln!("{e}");
@@ -84,7 +84,11 @@ pub fn main() {
     request_thread.join().unwrap();
 
     // stop receiving events and terminate event-consumer
-    receiver.join().unwrap();
+    if let Err(e) = receiver.join().unwrap() {
+        eprint!("{e}");
+        process::exit(1);
+    }
+
     if let Some(thread) = event_consumer {
         thread.join().unwrap();
     }
@@ -93,5 +97,9 @@ pub fn main() {
     if let Some(thread) = event_producer {
         thread.join().unwrap();
     }
-    sender.join().unwrap();
+
+    if let Err(e) = sender.join().unwrap() {
+        eprint!("{e}");
+        process::exit(1);
+    }
 }