Epoll (#20)

major update:
- remove threading overhead by resorting to an event driven design with mio as a backend for epoll
- Clients can now have an arbitrary amount of ip adresses and lan-mouse will automatically choose the correct one
- -> seemless switching between ethernet and wifi
- cli frontend + frontend adapter for future frontends

src/dns.rs

@@ -1,27 +1,9 @@
-use std::{error::Error, fmt::Display, net::IpAddr};
+use std::{error::Error, net::IpAddr};
 
 use trust_dns_resolver::Resolver;
 
-#[derive(Debug, Clone)]
-struct InvalidConfigError;
-
-#[derive(Debug, Clone)]
-struct DnsError {
-    host: String,
-}
-
-impl Error for DnsError {}
-
-impl Display for DnsError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "couldn't resolve host \"{}\"", self.host)
-    }
-}
-
-pub fn resolve(host: &String) -> Result<IpAddr, Box<dyn Error>> {
+pub fn resolve(host: &str) -> Result<Vec<IpAddr>, Box<dyn Error>> {
+    log::info!("resolving {host} ...");
     let response = Resolver::from_system_conf()?.lookup_ip(host)?;
-    match response.iter().next() {
-        Some(ip) => Ok(ip),
-        None => Err(DnsError { host: host.clone() }.into()),
-    }
+    Ok(response.iter().collect())
 }