basic expiration (values still need to serialize expiration)

src/server.rs

@@ -6,7 +6,7 @@ use tokio::{net::TcpListener, sync::Semaphore};
 use crate::Result;
 use crate::config::ServerConfig;
 use crate::connection::Connection;
-use crate::database::Database;
+use crate::database::{Database, key_expiration_manager};
 use crate::handler::Handler;
 
 #[derive(Debug)]
@@ -25,8 +25,12 @@ impl Server {
     async fn _new<Addr: ToSocketAddrs>(addr: Addr, max_connections: usize) -> Result<Self> {
         let listener = TcpListener::bind(addr).await?;
 
+        let db = Database::new();
+
+        tokio::spawn(key_expiration_manager(db.clone()));
+
         Ok(Self {
-            db: Database::new(),
+            db,
             connection_limit: Arc::new(Semaphore::const_new(max_connections)),
             listener,
         })
@@ -48,7 +52,7 @@ impl Server {
             tokio::spawn(async move {
                 log::debug!("Spawned a new connection handler: {addr}");
                 if let Err(e) = handler.run().await {
-                    println!("Handler::run error: {e:?}");
+                    log::debug!("Handler::run error: {e:?}");
                 }
                 log::debug!("Connection handler ended: {addr}");