fix: address clippy warnings and reselection bug

src/config.rs

@@ -43,13 +43,13 @@ impl FromStr for MeasurementType {
     type Err = ConfigError;
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
-        return match s.to_lowercase().as_str() {
+        match s.to_lowercase().as_str() {
             "icmp" => Ok(MeasurementType::Icmp),
             "icmp-timestamps" => Ok(MeasurementType::IcmpTimestamps),
             "ntp" => Ok(MeasurementType::Ntp),
             "tcp-timestamps" => Ok(MeasurementType::TcpTimestamps),
             &_ => Err(ConfigError::InvalidMeasurementType(s.to_string())),
-        };
+        }
     }
 }
 

src/netlink.rs

@@ -226,7 +226,7 @@ impl Netlink {
 
                     if _type.eq(type_to_look_for) {
                         let qdisc = Qdisc {
-                            ifindex: p.tcm_ifindex as i32,
+                            ifindex: p.tcm_ifindex,
                             parent: p.tcm_parent,
                         };
 

src/pinger.rs

@@ -133,12 +133,12 @@ pub trait PingSender {
             for reflector in reflectors.iter() {
                 let addr: SockAddr = match reflector.is_ipv4() {
                     true => {
-                        let ip4 = Ipv4Addr::from_str(&*reflector.to_string()).unwrap();
+                        let ip4 = Ipv4Addr::from_str(&reflector.to_string()).unwrap();
                         let sock4 = SocketAddrV4::new(ip4, 0);
                         sock4.into()
                     }
                     false => {
-                        let ip6 = Ipv6Addr::from_str(&*reflector.to_string()).unwrap();
+                        let ip6 = Ipv6Addr::from_str(&reflector.to_string()).unwrap();
                         let sock6 = SocketAddrV6::new(ip6, 0, 0, 0);
                         sock6.into()
                     }

src/ratecontroller.rs

@@ -318,6 +318,7 @@ impl Ratecontroller {
             speed_hist_fd_inner = File::options()
                 .create(true)
                 .write(true)
+                .truncate(true)
                 .open(self.config.speed_hist_file.as_str())?;
 
             speed_hist_fd_inner.write_all("time,counter,upspeed,downspeed\n".as_bytes())?;
@@ -328,6 +329,7 @@ impl Ratecontroller {
             stats_fd_inner = File::options()
                 .create(true)
                 .write(true)
+                .truncate(true)
                 .open(self.config.stats_file.as_str())?;
 
             stats_fd_inner.write_all(
@@ -348,11 +350,6 @@ impl Ratecontroller {
 
                 (self.state_dl.current_bytes, self.state_ul.current_bytes) =
                     get_interface_stats(&self.config, self.down_direction, self.up_direction)?;
-                if self.state_dl.current_bytes == -1 || self.state_ul.current_bytes == -1 {
-                    warn!(
-                    "One or both Netlink stats could not be read. Skipping rate control algorithm");
-                    continue;
-                }
 
                 self.update_deltas();
                 self.calculate_rate(Direction::Down)?;

src/reflector_selector.rs

@@ -52,13 +52,13 @@ impl ReflectorSelector {
 
             // Include all current peers
             for reflector in reflectors_peers.iter() {
-                debug!("Current peer: {}", reflector.to_string());
+                debug!("Current peer: {}", reflector);
                 next_peers.push(*reflector);
             }
 
             for _ in 1..20 {
                 let next_candidate = self.reflector_pool.choose(&mut rng).unwrap();
-                debug!("Next candidate: {}", next_candidate.to_string());
+                debug!("Next candidate: {}", next_candidate);
                 next_peers.push(*next_candidate);
             }
 
@@ -84,12 +84,9 @@ impl ReflectorSelector {
                 if owd_recent.contains_key(&peer) {
                     let rtt = (owd_recent[&peer].down_ewma + owd_recent[&peer].up_ewma) as u64;
                     candidates.push((peer, rtt));
-                    info!("Candidate reflector: {} RTT: {}", peer.to_string(), rtt);
+                    info!("Candidate reflector: {} RTT: {}", peer, rtt);
                 } else {
-                    info!(
-                        "No data found from candidate reflector: {} - skipping",
-                        peer.to_string()
-                    );
+                    info!("No data found from candidate reflector: {} - skipping", peer);
                 }
             }
 
@@ -99,7 +96,9 @@ impl ReflectorSelector {
             // Now we will just limit the candidates down to 2 * num_reflectors
             let mut num_reflectors = self.config.num_reflectors;
             let candidate_pool_num = (2 * num_reflectors) as usize;
-            candidates = candidates[0..candidate_pool_num - 1].to_vec();
+            if candidates.len() > candidate_pool_num {
+                candidates.truncate(candidate_pool_num);
+            }
 
             for (candidate, rtt) in candidates.iter() {
                 info!("Fastest candidate {}: {}", candidate, rtt);
@@ -118,10 +117,7 @@ impl ReflectorSelector {
             let mut new_peers = Vec::new();
             for i in 0..num_reflectors {
                 new_peers.push(candidates[i as usize].0);
-                info!(
-                    "New selected peer: {}",
-                    candidates[i as usize].0.to_string()
-                );
+                info!("New selected peer: {}", candidates[i as usize].0);
             }
 
             *reflectors_peers = new_peers;