Fix bugs, warnings

src/connections.rs

@@ -101,7 +101,7 @@ impl<T: std::fmt::Debug + Clone + Serialize + DeserializeOwned + Send + Sync + '
         if let Some(_) = &self.udp.socket {
             for (addr, conn) in &mut self.connections {
                 let interval = if conn.last_sent_ping > conn.last_recv_pong {
-                    Duration::from_millis(2000)
+                    self.config.max_ping_interval
                 } else {
                     self.config.ping_interval
                 };

src/lib.rs

@@ -16,7 +16,7 @@ use thiserror::*;
 use crate::{
     connections::{Connection, ConnectionError, ConnectionManager},
     listener::{Listener, ListenerMessage},
-    package::{CloseReason, DelayedPackage, Package},
+    package::{CloseReason, DelayedPackage},
     stats::NetStats,
 };
 

src/listener.rs

@@ -1,10 +1,8 @@
 use std::{
-    collections::VecDeque,
     io::{self, Cursor},
     marker::PhantomData,
     net::{SocketAddr, UdpSocket},
     sync::{Arc, mpsc::Sender},
-    time::{Duration, Instant},
 };
 
 use flate2::read::GzDecoder;