Fix all remaining clippy warnings

Fixes #586

.clippy.toml

@@ -0,0 +1 @@
+too-many-arguments-threshold = 9

benches/banking_stage.rs

@@ -144,12 +144,8 @@ fn bench_banking_stage_multi_accounts(bencher: &mut Bencher) {
 
         let verified_setup_len = verified_setup.len();
         verified_sender.send(verified_setup).unwrap();
-        BankingStage::process_packets(
-            bank.clone(),
-            &verified_receiver,
-            &signal_sender,
-            &packet_recycler,
-        ).unwrap();
+        BankingStage::process_packets(&bank, &verified_receiver, &signal_sender, &packet_recycler)
+            .unwrap();
 
         check_txs(verified_setup_len, &signal_receiver, num_src_accounts);
 
@@ -163,12 +159,8 @@ fn bench_banking_stage_multi_accounts(bencher: &mut Bencher) {
 
         let verified_len = verified.len();
         verified_sender.send(verified).unwrap();
-        BankingStage::process_packets(
-            bank.clone(),
-            &verified_receiver,
-            &signal_sender,
-            &packet_recycler,
-        ).unwrap();
+        BankingStage::process_packets(&bank, &verified_receiver, &signal_sender, &packet_recycler)
+            .unwrap();
 
         check_txs(verified_len, &signal_receiver, tx);
     });
@@ -210,12 +202,8 @@ fn bench_banking_stage_single_from(bencher: &mut Bencher) {
             .collect();
         let verified_len = verified.len();
         verified_sender.send(verified).unwrap();
-        BankingStage::process_packets(
-            bank.clone(),
-            &verified_receiver,
-            &signal_sender,
-            &packet_recycler,
-        ).unwrap();
+        BankingStage::process_packets(&bank, &verified_receiver, &signal_sender, &packet_recycler)
+            .unwrap();
 
         check_txs(verified_len, &signal_receiver, tx);
     });

src/banking_stage.rs

@@ -40,7 +40,7 @@ impl BankingStage {
             .name("solana-banking-stage".to_string())
             .spawn(move || loop {
                 if let Err(e) = Self::process_packets(
-                    bank.clone(),
+                    &bank.clone(),
                     &verified_receiver,
                     &signal_sender,
                     &packet_recycler,
@@ -72,7 +72,7 @@ impl BankingStage {
     /// Process the incoming packets and send output `Signal` messages to `signal_sender`.
     /// Discard packets via `packet_recycler`.
     pub fn process_packets(
-        bank: Arc<Bank>,
+        bank: &Arc<Bank>,
         verified_receiver: &Receiver<Vec<(SharedPackets, Vec<u8>)>>,
         signal_sender: &Sender<Signal>,
         packet_recycler: &PacketRecycler,

src/bin/client-demo.rs

@@ -399,7 +399,7 @@ fn converge(
     let window = default_window();
     let gossip_send_socket = udp_random_bind(8000, 10000, 5).unwrap();
     let ncp = Ncp::new(
-        spy_ref.clone(),
+        &spy_ref.clone(),
         window.clone(),
         spy_gossip,
         gossip_send_socket,

src/blob_fetch_stage.rs

@@ -18,14 +18,14 @@ impl BlobFetchStage {
     pub fn new(
         socket: UdpSocket,
         exit: Arc<AtomicBool>,
-        blob_recycler: BlobRecycler,
+        blob_recycler: &BlobRecycler,
     ) -> (Self, BlobReceiver) {
         Self::new_multi_socket(vec![socket], exit, blob_recycler)
     }
     pub fn new_multi_socket(
         sockets: Vec<UdpSocket>,
         exit: Arc<AtomicBool>,
-        blob_recycler: BlobRecycler,
+        blob_recycler: &BlobRecycler,
     ) -> (Self, BlobReceiver) {
         let (blob_sender, blob_receiver) = channel();
         let thread_hdls: Vec<_> = sockets

src/drone.rs

@@ -17,7 +17,7 @@ use transaction::Transaction;
 pub const TIME_SLICE: u64 = 60;
 pub const REQUEST_CAP: u64 = 1_000_000;
 
-#[derive(Serialize, Deserialize, Debug)]
+#[derive(Serialize, Deserialize, Debug, Clone, Copy)]
 pub enum DroneRequest {
     GetAirdrop {
         airdrop_request_amount: u64,

src/fetch_stage.rs

@@ -18,14 +18,14 @@ impl FetchStage {
     pub fn new(
         socket: UdpSocket,
         exit: Arc<AtomicBool>,
-        packet_recycler: PacketRecycler,
+        packet_recycler: &PacketRecycler,
     ) -> (Self, PacketReceiver) {
         Self::new_multi_socket(vec![socket], exit, packet_recycler)
     }
     pub fn new_multi_socket(
         sockets: Vec<UdpSocket>,
         exit: Arc<AtomicBool>,
-        packet_recycler: PacketRecycler,
+        packet_recycler: &PacketRecycler,
     ) -> (Self, PacketReceiver) {
         let (packet_sender, packet_receiver) = channel();
         let thread_hdls: Vec<_> = sockets

src/fullnode.rs

@@ -112,7 +112,7 @@ impl FullNode {
                 entry_height,
                 Some(ledger_tail),
                 node,
-                network_entry_point,
+                &network_entry_point,
                 exit.clone(),
             );
             info!(
@@ -208,7 +208,7 @@ impl FullNode {
         let bank = Arc::new(bank);
         let mut thread_hdls = vec![];
         let rpu = Rpu::new(
-            bank.clone(),
+            &bank.clone(),
             node.sockets.requests,
             node.sockets.respond,
             exit.clone(),
@@ -229,7 +229,7 @@ impl FullNode {
         thread_hdls.extend(tpu.thread_hdls());
         let window = FullNode::new_window(ledger_tail, entry_height, &crdt, &blob_recycler);
         let ncp = Ncp::new(
-            crdt.clone(),
+            &crdt.clone(),
             window.clone(),
             node.sockets.gossip,
             node.sockets.gossip_send,
@@ -285,13 +285,13 @@ impl FullNode {
         entry_height: u64,
         ledger_tail: Option<Vec<Entry>>,
         node: TestNode,
-        entry_point: NodeInfo,
+        entry_point: &NodeInfo,
         exit: Arc<AtomicBool>,
     ) -> Self {
         let bank = Arc::new(bank);
         let mut thread_hdls = vec![];
         let rpu = Rpu::new(
-            bank.clone(),
+            &bank.clone(),
             node.sockets.requests,
             node.sockets.respond,
             exit.clone(),
@@ -308,7 +308,7 @@ impl FullNode {
         let window = FullNode::new_window(ledger_tail, entry_height, &crdt, &blob_recycler);
 
         let ncp = Ncp::new(
-            crdt.clone(),
+            &crdt.clone(),
             window.clone(),
             node.sockets.gossip,
             node.sockets.gossip_send,
@@ -367,7 +367,7 @@ mod tests {
         let bank = Bank::new(&alice);
         let exit = Arc::new(AtomicBool::new(false));
         let entry = tn.data.clone();
-        let v = FullNode::new_validator(kp, bank, 0, None, tn, entry, exit);
+        let v = FullNode::new_validator(kp, bank, 0, None, tn, &entry, exit);
         v.close().unwrap();
     }
 }

src/metrics.rs

@@ -81,13 +81,13 @@ impl Default for MetricsAgent {
 impl MetricsAgent {
     fn new(writer: Arc<MetricsWriter + Send + Sync>, write_frequency: Duration) -> Self {
         let (sender, receiver) = channel::<MetricsCommand>();
-        thread::spawn(move || Self::run(receiver, writer, write_frequency));
+        thread::spawn(move || Self::run(&receiver, &writer, write_frequency));
         MetricsAgent { sender }
     }
 
     fn run(
-        receiver: Receiver<MetricsCommand>,
-        writer: Arc<MetricsWriter>,
+        receiver: &Receiver<MetricsCommand>,
+        writer: &Arc<MetricsWriter + Send + Sync>,
         write_frequency: Duration,
     ) {
         trace!("run: enter");

src/ncp.rs

@@ -18,7 +18,7 @@ pub struct Ncp {
 
 impl Ncp {
     pub fn new(
-        crdt: Arc<RwLock<Crdt>>,
+        crdt: &Arc<RwLock<Crdt>>,
         window: Arc<RwLock<Vec<Option<SharedBlob>>>>,
         gossip_listen_socket: UdpSocket,
         gossip_send_socket: UdpSocket,
@@ -93,7 +93,7 @@ mod tests {
         let c = Arc::new(RwLock::new(crdt));
         let w = Arc::new(RwLock::new(vec![]));
         let d = Ncp::new(
-            c.clone(),
+            &c.clone(),
             w,
             tn.sockets.gossip,
             tn.sockets.gossip_send,

src/request.rs

@@ -4,7 +4,7 @@ use hash::Hash;
 use signature::{PublicKey, Signature};
 
 #[cfg_attr(feature = "cargo-clippy", allow(large_enum_variant))]
-#[derive(Serialize, Deserialize, Debug, Clone)]
+#[derive(Serialize, Deserialize, Debug, Clone, Copy)]
 pub enum Request {
     GetBalance { key: PublicKey },
     GetLastId,

src/rpu.rs

@@ -41,7 +41,7 @@ pub struct Rpu {
 
 impl Rpu {
     pub fn new(
-        bank: Arc<Bank>,
+        bank: &Arc<Bank>,
         requests_socket: UdpSocket,
         respond_socket: UdpSocket,
         exit: Arc<AtomicBool>,

src/sigverify.rs

@@ -66,6 +66,7 @@ fn batch_size(batches: &[SharedPackets]) -> usize {
         .sum()
 }
 
+#[cfg_attr(feature = "cargo-clippy", allow(ptr_arg))]
 #[cfg(not(feature = "cuda"))]
 pub fn ed25519_verify(batches: &Vec<SharedPackets>) -> Vec<Vec<u8>> {
     use rayon::prelude::*;

src/streamer.rs

@@ -249,40 +249,18 @@ fn repair_window(
     Ok(())
 }
 
-fn recv_window(
+fn retransmit_all_leader_blocks(
+    maybe_leader: Option<NodeInfo>,
+    dq: &mut SharedBlobs,
     debug_id: u64,
-    locked_window: &Window,
-    crdt: &Arc<RwLock<Crdt>>,
     recycler: &BlobRecycler,
     consumed: &mut u64,
     received: &mut u64,
-    r: &BlobReceiver,
-    s: &BlobSender,
     retransmit: &BlobSender,
 ) -> Result<()> {
-    let timer = Duration::from_millis(200);
-    let mut dq = r.recv_timeout(timer)?;
-    let maybe_leader: Option<NodeInfo> = crdt.read()
-        .expect("'crdt' read lock in fn recv_window")
-        .leader_data()
-        .cloned();
-    while let Ok(mut nq) = r.try_recv() {
-        dq.append(&mut nq)
-    }
-    static mut COUNTER_RECV: Counter = create_counter!("streamer-recv_window-recv", LOG_RATE);
-    inc_counter!(COUNTER_RECV, dq.len());
-    debug!(
-        "{:x}: RECV_WINDOW {} {}: got packets {}",
-        debug_id,
-        *consumed,
-        *received,
-        dq.len(),
-    );
-    {
-        //retransmit all leader blocks
     let mut retransmit_queue = VecDeque::new();
     if let Some(leader) = maybe_leader {
-            for b in &dq {
+        for b in dq {
             let p = b.read().expect("'b' read lock in fn recv_window");
             //TODO this check isn't safe against adverserial packets
             //we need to maintain a sequence window
@@ -328,32 +306,19 @@ fn recv_window(
         inc_counter!(COUNTER_RETRANSMIT, retransmit_queue.len());
         retransmit.send(retransmit_queue)?;
     }
-    }
-    //send a contiguous set of blocks
-    let mut consume_queue = VecDeque::new();
-    while let Some(b) = dq.pop_front() {
-        let (pix, meta_size) = {
-            let p = b.write().expect("'b' write lock in fn recv_window");
-            (p.get_index()?, p.meta.size)
-        };
-        if pix > *received {
-            *received = pix;
-        }
-        // Got a blob which has already been consumed, skip it
-        // probably from a repair window request
-        if pix < *consumed {
-            debug!(
-                "{:x}: received: {} but older than consumed: {} skipping..",
-                debug_id, pix, *consumed
-            );
-            continue;
-        }
-        let w = (pix % WINDOW_SIZE) as usize;
-        //TODO, after the block are authenticated
-        //if we get different blocks at the same index
-        //that is a network failure/attack
-        trace!("window w: {} size: {}", w, meta_size);
-        {
+    Ok(())
+}
+
+fn process_blob(
+    b: SharedBlob,
+    pix: u64,
+    w: usize,
+    consume_queue: &mut SharedBlobs,
+    locked_window: &Window,
+    debug_id: u64,
+    recycler: &BlobRecycler,
+    consumed: &mut u64,
+) {
     let mut window = locked_window.write().unwrap();
 
     // Search the window for old blobs in the window
@@ -410,9 +375,7 @@ fn recv_window(
                 let coding_end = block_start + erasure::NUM_CODED as u64;
                 // We've received all this block's data blobs, go and null out the window now
                 for j in block_start..*consumed {
-                            if let Some(b) =
-                                mem::replace(&mut window[(j % WINDOW_SIZE) as usize], None)
-                            {
+                    if let Some(b) = mem::replace(&mut window[(j % WINDOW_SIZE) as usize], None) {
                         recycler.recycle(b);
                     }
                 }
@@ -428,7 +391,83 @@ fn recv_window(
             }
         }
     }
+}
+
+fn recv_window(
+    debug_id: u64,
+    locked_window: &Window,
+    crdt: &Arc<RwLock<Crdt>>,
+    recycler: &BlobRecycler,
+    consumed: &mut u64,
+    received: &mut u64,
+    r: &BlobReceiver,
+    s: &BlobSender,
+    retransmit: &BlobSender,
+) -> Result<()> {
+    let timer = Duration::from_millis(200);
+    let mut dq = r.recv_timeout(timer)?;
+    let maybe_leader: Option<NodeInfo> = crdt.read()
+        .expect("'crdt' read lock in fn recv_window")
+        .leader_data()
+        .cloned();
+    while let Ok(mut nq) = r.try_recv() {
+        dq.append(&mut nq)
     }
+    static mut COUNTER_RECV: Counter = create_counter!("streamer-recv_window-recv", LOG_RATE);
+    inc_counter!(COUNTER_RECV, dq.len());
+    debug!(
+        "{:x}: RECV_WINDOW {} {}: got packets {}",
+        debug_id,
+        *consumed,
+        *received,
+        dq.len(),
+    );
+
+    retransmit_all_leader_blocks(
+        maybe_leader,
+        &mut dq,
+        debug_id,
+        recycler,
+        consumed,
+        received,
+        retransmit,
+    )?;
+
+    //send a contiguous set of blocks
+    let mut consume_queue = VecDeque::new();
+    while let Some(b) = dq.pop_front() {
+        let (pix, meta_size) = {
+            let p = b.write().expect("'b' write lock in fn recv_window");
+            (p.get_index()?, p.meta.size)
+        };
+        if pix > *received {
+            *received = pix;
+        }
+        // Got a blob which has already been consumed, skip it
+        // probably from a repair window request
+        if pix < *consumed {
+            debug!(
+                "{:x}: received: {} but older than consumed: {} skipping..",
+                debug_id, pix, *consumed
+            );
+            continue;
+        }
+        let w = (pix % WINDOW_SIZE) as usize;
+        //TODO, after the block are authenticated
+        //if we get different blocks at the same index
+        //that is a network failure/attack
+        trace!("window w: {} size: {}", w, meta_size);
+
+        process_blob(
+            b,
+            pix,
+            w,
+            &mut consume_queue,
+            locked_window,
+            debug_id,
+            recycler,
+            consumed,
+        );
     }
     print_window(debug_id, locked_window, *consumed);
     trace!("sending consume_queue.len: {}", consume_queue.len());

src/tpu.rs

@@ -63,7 +63,7 @@ impl Tpu {
         let packet_recycler = PacketRecycler::default();
 
         let (fetch_stage, packet_receiver) =
-            FetchStage::new(transactions_socket, exit, packet_recycler.clone());
+            FetchStage::new(transactions_socket, exit, &packet_recycler.clone());
 
         let (sigverify_stage, verified_receiver) = SigVerifyStage::new(packet_receiver);
 

src/tvu.rs

@@ -83,7 +83,7 @@ impl Tvu {
         let (fetch_stage, blob_fetch_receiver) = BlobFetchStage::new_multi_socket(
             vec![replicate_socket, repair_socket],
             exit,
-            blob_recycler.clone(),
+            &blob_recycler.clone(),
         );
         //TODO
         //the packets coming out of blob_receiver need to be sent to the GPU and verified
@@ -161,7 +161,7 @@ pub mod tests {
     ) -> Result<(Ncp, Window)> {
         let window = streamer::default_window();
         let send_sock = UdpSocket::bind("0.0.0.0:0").expect("bind 0");
-        let ncp = Ncp::new(crdt, window.clone(), listen, send_sock, exit)?;
+        let ncp = Ncp::new(&crdt, window.clone(), listen, send_sock, exit)?;
         Ok((ncp, window))
     }
     /// Test that message sent from leader to target1 and replicated to target2

tests/data_replicator.rs

@@ -21,7 +21,7 @@ fn test_node(exit: Arc<AtomicBool>) -> (Arc<RwLock<Crdt>>, Ncp, UdpSocket) {
     let c = Arc::new(RwLock::new(crdt));
     let w = Arc::new(RwLock::new(vec![]));
     let d = Ncp::new(
-        c.clone(),
+        &c.clone(),
         w,
         tn.sockets.gossip,
         tn.sockets.gossip_send,

tests/multinode.rs

@@ -35,7 +35,7 @@ fn converge(leader: &NodeInfo, num_nodes: usize) -> Vec<NodeInfo> {
     let spy_ref = Arc::new(RwLock::new(spy_crdt));
     let spy_window = default_window();
     let ncp = Ncp::new(
-        spy_ref.clone(),
+        &spy_ref.clone(),
         spy_window,
         spy.sockets.gossip,
         spy.sockets.gossip_send,