]> git.bitcoin.ninja Git - dnsseed-rust/commitdiff
Drop v6 tclass and scope to cut down on mem usage a bit
authorMatt Corallo <git@bluematt.me>
Sun, 1 Dec 2019 22:31:33 +0000 (17:31 -0500)
committerMatt Corallo <git@bluematt.me>
Mon, 2 Dec 2019 02:33:35 +0000 (21:33 -0500)
src/datastore.rs

index 0e6dea3350357632170d86ae3262c6d3e8180c82..354a37d62aa5f63bd96bf5226bb814163d0da829 100644 (file)
@@ -1,7 +1,7 @@
 use std::{cmp, mem};
 use std::collections::{HashSet, HashMap, hash_map};
 use std::sync::{Arc, RwLock};
-use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
+use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6};
 use std::time::{Duration, Instant};
 use std::io::{BufRead, BufReader};
 
@@ -126,17 +126,60 @@ struct Node {
        state: AddressState,
 }
 
+/// Essentially SocketAddr but without a traffic class or scope
+#[derive(Clone, PartialEq, Eq, Hash)]
+enum SockAddr {
+       V4(SocketAddrV4),
+       V6((Ipv6Addr, u16)),
+}
+impl From<SocketAddr> for SockAddr {
+       fn from(addr: SocketAddr) -> SockAddr {
+               match addr {
+                       SocketAddr::V4(sa) => SockAddr::V4(sa),
+                       SocketAddr::V6(sa) => SockAddr::V6((sa.ip().clone(), sa.port())),
+               }
+       }
+}
+impl Into<SocketAddr> for &SockAddr {
+       fn into(self) -> SocketAddr {
+               match self {
+                       &SockAddr::V4(sa) => SocketAddr::V4(sa),
+                       &SockAddr::V6(sa) => SocketAddr::V6(SocketAddrV6::new(sa.0, sa.1, 0, 0))
+               }
+       }
+}
+impl ToString for SockAddr {
+       fn to_string(&self) -> String {
+               let sa: SocketAddr = self.into();
+               sa.to_string()
+       }
+}
+impl SockAddr {
+       pub fn port(&self) -> u16 {
+               match *self {
+                       SockAddr::V4(sa) => sa.port(),
+                       SockAddr::V6((_, port)) => port,
+               }
+       }
+       pub fn ip(&self) -> IpAddr {
+               match *self {
+                       SockAddr::V4(sa) => IpAddr::V4(sa.ip().clone()),
+                       SockAddr::V6((ip, _)) => IpAddr::V6(ip),
+               }
+       }
+}
+
 struct Nodes {
-       good_node_services: Vec<HashSet<SocketAddr>>,
-       nodes_to_state: HashMap<SocketAddr, Node>,
-       state_next_scan: Vec<Vec<(Instant, SocketAddr)>>,
+       good_node_services: Vec<HashSet<SockAddr>>,
+       nodes_to_state: HashMap<SockAddr, Node>,
+       state_next_scan: Vec<Vec<(Instant, SockAddr)>>,
 }
 struct NodesMutRef<'a> {
-       good_node_services: &'a mut Vec<HashSet<SocketAddr>>,
-       nodes_to_state: &'a mut HashMap<SocketAddr, Node>,
-       state_next_scan: &'a mut Vec<Vec<(Instant, SocketAddr)>>,
-
+       good_node_services: &'a mut Vec<HashSet<SockAddr>>,
+       nodes_to_state: &'a mut HashMap<SockAddr, Node>,
+       state_next_scan: &'a mut Vec<Vec<(Instant, SockAddr)>>,
 }
+
 impl Nodes {
        fn borrow_mut<'a>(&'a mut self) -> NodesMutRef<'a> {
                NodesMutRef {
@@ -269,12 +312,12 @@ impl Store {
                                if node.state == AddressState::Good {
                                        for i in 0..64 {
                                                if node.last_services & (1 << i) != 0 {
-                                                       res.good_node_services[i].insert(sockaddr);
+                                                       res.good_node_services[i].insert(sockaddr.into());
                                                }
                                        }
                                }
-                               res.state_next_scan[node.state.to_num() as usize].push((start_time, sockaddr));
-                               res.nodes_to_state.insert(sockaddr, node);
+                               res.state_next_scan[node.state.to_num() as usize].push((start_time, sockaddr.into()));
+                               res.nodes_to_state.insert(sockaddr.into(), node);
                        }
                        future::ok(res)
                }).or_else(|_| -> future::FutureResult<Nodes, ()> {
@@ -315,7 +358,7 @@ impl Store {
                let mut nodes = self.nodes.write().unwrap();
                let cur_time = Instant::now();
                for addr in addresses {
-                       match nodes.nodes_to_state.entry(addr.clone()) {
+                       match nodes.nodes_to_state.entry(addr.into()) {
                                hash_map::Entry::Vacant(e) => {
                                        e.insert(Node {
                                                state: AddressState::Untested,
@@ -323,7 +366,7 @@ impl Store {
                                                last_update: cur_time,
                                                last_good: cur_time,
                                        });
-                                       nodes.state_next_scan[AddressState::Untested.to_num() as usize].push((cur_time, addr));
+                                       nodes.state_next_scan[AddressState::Untested.to_num() as usize].push((cur_time, addr.into()));
                                        res += 1;
                                },
                                hash_map::Entry::Occupied(_) => {},
@@ -341,12 +384,14 @@ impl Store {
                }));
        }
 
-       pub fn set_node_state(&self, addr: SocketAddr, state: AddressState, services: u64) -> AddressState {
+       pub fn set_node_state(&self, sockaddr: SocketAddr, state: AddressState, services: u64) -> AddressState {
+               let addr: SockAddr = sockaddr.into();
+               let now = Instant::now();
+
                let mut nodes_lock = self.nodes.write().unwrap();
                let nodes = nodes_lock.borrow_mut();
-               let now = Instant::now();
 
-               let state_ref = nodes.nodes_to_state.entry(addr).or_insert(Node {
+               let state_ref = nodes.nodes_to_state.entry(addr.clone()).or_insert(Node {
                        state: AddressState::Untested,
                        last_services: 0,
                        last_update: now,
@@ -369,7 +414,7 @@ impl Store {
                        if state == AddressState::Good {
                                for i in 0..64 {
                                        if services & (1 << i) != 0 && state_ref.last_services & (1 << i) == 0 {
-                                               nodes.good_node_services[i].insert(addr);
+                                               nodes.good_node_services[i].insert(addr.clone());
                                        } else if services & (1 << i) == 0 && state_ref.last_services & (1 << i) != 0 {
                                                nodes.good_node_services[i].remove(&addr);
                                        }
@@ -541,7 +586,7 @@ impl Store {
                                let mut new_nodes = state_nodes.split_off(split_point as usize);
                                mem::swap(&mut new_nodes, state_nodes);
                                for (_, node) in new_nodes.drain(..) {
-                                       res.push(node);
+                                       res.push((&node).into());
                                }
                        }
                }