Merge pull request #304 from tox-rs/consts

DHT consts improvements

src/toxcore/dht/server/mod.rs

@@ -46,8 +46,6 @@ type TcpOnionTx = mpsc::Sender<(InnerOnionResponse, SocketAddr)>;
 /// After random requests count exceeds this number `NODES_REQ_INTERVAL` will be
 /// used.
 pub const MAX_BOOTSTRAP_TIMES: u32 = 5;
-/// Interval in seconds of sending `NatPingRequest` packet.
-pub const NAT_PING_REQ_INTERVAL: u64 = 3;
 /// How often onion key should be refreshed.
 pub const ONION_REFRESH_KEY_INTERVAL: u64 = 7200;
 /// Interval in seconds for random `NodesRequest`.
@@ -69,6 +67,8 @@ pub const PRECOMPUTED_LRU_CACHE_SIZE: usize = KBUCKET_DEFAULT_SIZE as usize * KB
     KBUCKET_DEFAULT_SIZE as usize * (2 + 10); // For friend's close_nodes of 2 fake friends + 10 friends reserved
 /// Timeout in seconds for packet sending
 pub const DHT_SEND_TIMEOUT: u64 = 1;
+/// How often DHT main loop should be called.
+const MAIN_LOOP_INTERVAL: u64 = 1;
 
 /// Struct that contains necessary data for `BootstrapInfo` packet.
 #[derive(Clone)]
@@ -371,7 +371,7 @@ impl Server {
     /// Run DHT main loop periodically. Result future will never be completed
     /// successfully.
     fn run_main_loop(self) -> impl Future<Item = (), Error = Error> + Send {
-        let interval = Duration::from_secs(1);
+        let interval = Duration::from_secs(MAIN_LOOP_INTERVAL);
         let wakeups = Interval::new(Instant::now(), interval);
         wakeups
             .map_err(|e| Error::new(ErrorKind::Other, format!("DHT server timer error: {:?}", e)))