use std::{cmp, mem};
-use std::collections::{HashMap, hash_map};
-use std::sync::RwLock;
+use std::collections::{HashSet, HashMap, hash_map};
+use std::sync::{Arc, RwLock};
use std::net::SocketAddr;
use std::time::{Duration, Instant};
+use std::io::{BufRead, BufReader};
use bitcoin::network::address::Address;
use rand::thread_rng;
-use rand::seq::SliceRandom;
+use rand::seq::{SliceRandom, IteratorRandom};
+
+use tokio::prelude::*;
+use tokio::fs::File;
+use tokio::io::write_all;
+
+use regex::Regex;
#[derive(Clone, Copy, Hash, PartialEq, Eq)]
pub enum AddressState {
WasGood,
}
+impl AddressState {
+ pub fn from_num(num: u8) -> Option<AddressState> {
+ match num {
+ 0x0 => Some(AddressState::Untested),
+ 0x1 => Some(AddressState::LowBlockCount),
+ 0x2 => Some(AddressState::HighBlockCount),
+ 0x3 => Some(AddressState::LowVersion),
+ 0x4 => Some(AddressState::BadVersion),
+ 0x5 => Some(AddressState::NotFullNode),
+ 0x6 => Some(AddressState::ProtocolViolation),
+ 0x7 => Some(AddressState::Timeout),
+ 0x8 => Some(AddressState::TimeoutDuringRequest),
+ 0x9 => Some(AddressState::Good),
+ 0xa => Some(AddressState::WasGood),
+ _ => None,
+ }
+ }
+
+ pub fn to_num(&self) -> u8 {
+ match *self {
+ AddressState::Untested => 0,
+ AddressState::LowBlockCount => 1,
+ AddressState::HighBlockCount => 2,
+ AddressState::LowVersion => 3,
+ AddressState::BadVersion => 4,
+ AddressState::NotFullNode => 5,
+ AddressState::ProtocolViolation => 6,
+ AddressState::Timeout => 7,
+ AddressState::TimeoutDuringRequest => 8,
+ AddressState::Good => 9,
+ AddressState::WasGood => 10,
+ }
+ }
+
+ pub fn to_str(&self) -> &'static str {
+ match *self {
+ AddressState::Untested => "Untested",
+ AddressState::LowBlockCount => "Low Block Count",
+ AddressState::HighBlockCount => "High Block Count",
+ AddressState::LowVersion => "Low Version",
+ AddressState::BadVersion => "Bad Version",
+ AddressState::NotFullNode => "Not Full Node",
+ AddressState::ProtocolViolation => "Protocol Violation",
+ AddressState::Timeout => "Timeout",
+ AddressState::TimeoutDuringRequest => "Timeout During Request",
+ AddressState::Good => "Good",
+ AddressState::WasGood => "Was Good",
+ }
+ }
+
+ pub fn get_count() -> u8 {
+ 11
+ }
+}
+
#[derive(Hash, PartialEq, Eq)]
pub enum U64Setting {
ConnsPerSec,
}
#[derive(Hash, PartialEq, Eq)]
-pub enum StringSetting {
+pub enum RegexSetting {
SubverRegex,
}
+struct Node {
+ last_update: Instant,
+ last_good: Instant, // Ignored unless state is Good or WasGood
+ last_services: u64,
+ state: AddressState,
+}
+
struct Nodes {
- good_node_services: HashMap<u8, Vec<SocketAddr>>,
- nodes_to_state: HashMap<SocketAddr, AddressState>,
+ good_node_services: HashMap<u8, HashSet<SocketAddr>>,
+ nodes_to_state: HashMap<SocketAddr, Node>,
state_next_scan: HashMap<AddressState, Vec<(Instant, SocketAddr)>>,
}
+struct NodesMutRef<'a> {
+ good_node_services: &'a mut HashMap<u8, HashSet<SocketAddr>>,
+ nodes_to_state: &'a mut HashMap<SocketAddr, Node>,
+ state_next_scan: &'a mut HashMap<AddressState, Vec<(Instant, SocketAddr)>>,
+
+}
+impl Nodes {
+ fn borrow_mut<'a>(&'a mut self) -> NodesMutRef<'a> {
+ NodesMutRef {
+ good_node_services: &mut self.good_node_services,
+ nodes_to_state: &mut self.nodes_to_state,
+ state_next_scan: &mut self.state_next_scan,
+ }
+ }
+}
pub struct Store {
u64_settings: RwLock<HashMap<U64Setting, u64>>,
- subver_regex: RwLock<String>,
+ subver_regex: RwLock<Arc<Regex>>,
nodes: RwLock<Nodes>,
+ store: String,
}
impl Store {
- pub fn new() -> Store {
- let mut u64s = HashMap::with_capacity(15);
- u64s.insert(U64Setting::ConnsPerSec, 50);
- u64s.insert(U64Setting::RunTimeout, 120);
- u64s.insert(U64Setting::WasGoodTimeout, 21600);
- u64s.insert(U64Setting::RescanInterval(AddressState::Untested), 0);
- u64s.insert(U64Setting::RescanInterval(AddressState::LowBlockCount), 3600);
- u64s.insert(U64Setting::RescanInterval(AddressState::HighBlockCount), 7200);
- u64s.insert(U64Setting::RescanInterval(AddressState::LowVersion), 21600);
- u64s.insert(U64Setting::RescanInterval(AddressState::BadVersion), 21600);
- u64s.insert(U64Setting::RescanInterval(AddressState::NotFullNode), 86400);
- u64s.insert(U64Setting::RescanInterval(AddressState::ProtocolViolation), 86400);
- u64s.insert(U64Setting::RescanInterval(AddressState::Timeout), 86400);
- u64s.insert(U64Setting::RescanInterval(AddressState::TimeoutDuringRequest), 21600);
- u64s.insert(U64Setting::RescanInterval(AddressState::Good), 1800);
- u64s.insert(U64Setting::RescanInterval(AddressState::WasGood), 1800);
- u64s.insert(U64Setting::MinProtocolVersion, 10000); //XXX
- let mut state_vecs = HashMap::with_capacity(11);
- state_vecs.insert(AddressState::Untested, Vec::new());
- state_vecs.insert(AddressState::LowBlockCount, Vec::new());
- state_vecs.insert(AddressState::HighBlockCount, Vec::new());
- state_vecs.insert(AddressState::LowVersion, Vec::new());
- state_vecs.insert(AddressState::BadVersion, Vec::new());
- state_vecs.insert(AddressState::NotFullNode, Vec::new());
- state_vecs.insert(AddressState::ProtocolViolation, Vec::new());
- state_vecs.insert(AddressState::Timeout, Vec::new());
- state_vecs.insert(AddressState::TimeoutDuringRequest, Vec::new());
- state_vecs.insert(AddressState::Good, Vec::new());
- state_vecs.insert(AddressState::WasGood, Vec::new());
- let mut good_node_services = HashMap::with_capacity(64);
- for i in 0..64 {
- good_node_services.insert(i, Vec::new());
- }
- Store {
- u64_settings: RwLock::new(u64s),
- subver_regex: RwLock::new(".*".to_string()),
- nodes: RwLock::new(Nodes {
- good_node_services,
- nodes_to_state: HashMap::new(),
- state_next_scan: state_vecs,
- }),
+ pub fn new(store: String) -> impl Future<Item=Store, Error=()> {
+ let settings_future = File::open(store.clone() + "/settings").and_then(|f| {
+ let mut l = BufReader::new(f).lines();
+ macro_rules! try_read {
+ ($lines: expr, $ty: ty) => { {
+ match $lines.next() {
+ Some(line) => match line {
+ Ok(line) => match line.parse::<$ty>() {
+ Ok(res) => res,
+ Err(e) => return future::err(std::io::Error::new(std::io::ErrorKind::InvalidData, e)),
+ },
+ Err(e) => return future::err(e),
+ },
+ None => return future::err(std::io::Error::new(std::io::ErrorKind::UnexpectedEof, "")),
+ }
+ } }
+ }
+ let mut u64s = HashMap::with_capacity(15);
+ u64s.insert(U64Setting::ConnsPerSec, try_read!(l, u64));
+ u64s.insert(U64Setting::RunTimeout, try_read!(l, u64));
+ u64s.insert(U64Setting::WasGoodTimeout, try_read!(l, u64));
+ u64s.insert(U64Setting::MinProtocolVersion, try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::Untested), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::LowBlockCount), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::HighBlockCount), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::LowVersion), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::BadVersion), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::NotFullNode), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::ProtocolViolation), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::Timeout), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::TimeoutDuringRequest), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::Good), try_read!(l, u64));
+ u64s.insert(U64Setting::RescanInterval(AddressState::WasGood), try_read!(l, u64));
+ future::ok((u64s, try_read!(l, Regex)))
+ }).or_else(|_| -> future::FutureResult<(HashMap<U64Setting, u64>, Regex), ()> {
+ let mut u64s = HashMap::with_capacity(15);
+ u64s.insert(U64Setting::ConnsPerSec, 10);
+ u64s.insert(U64Setting::RunTimeout, 120);
+ u64s.insert(U64Setting::WasGoodTimeout, 21600);
+ u64s.insert(U64Setting::RescanInterval(AddressState::Untested), 0);
+ u64s.insert(U64Setting::RescanInterval(AddressState::LowBlockCount), 3600);
+ u64s.insert(U64Setting::RescanInterval(AddressState::HighBlockCount), 7200);
+ u64s.insert(U64Setting::RescanInterval(AddressState::LowVersion), 21600);
+ u64s.insert(U64Setting::RescanInterval(AddressState::BadVersion), 21600);
+ u64s.insert(U64Setting::RescanInterval(AddressState::NotFullNode), 86400);
+ u64s.insert(U64Setting::RescanInterval(AddressState::ProtocolViolation), 86400);
+ u64s.insert(U64Setting::RescanInterval(AddressState::Timeout), 86400);
+ u64s.insert(U64Setting::RescanInterval(AddressState::TimeoutDuringRequest), 21600);
+ u64s.insert(U64Setting::RescanInterval(AddressState::Good), 1800);
+ u64s.insert(U64Setting::RescanInterval(AddressState::WasGood), 1800);
+ u64s.insert(U64Setting::MinProtocolVersion, 10000); //XXX
+ future::ok((u64s, Regex::new(".*").unwrap()))
+ });
+
+ macro_rules! nodes_uninitd {
+ () => { {
+ let mut state_vecs = HashMap::with_capacity(11);
+ state_vecs.insert(AddressState::Untested, Vec::new());
+ state_vecs.insert(AddressState::LowBlockCount, Vec::new());
+ state_vecs.insert(AddressState::HighBlockCount, Vec::new());
+ state_vecs.insert(AddressState::LowVersion, Vec::new());
+ state_vecs.insert(AddressState::BadVersion, Vec::new());
+ state_vecs.insert(AddressState::NotFullNode, Vec::new());
+ state_vecs.insert(AddressState::ProtocolViolation, Vec::new());
+ state_vecs.insert(AddressState::Timeout, Vec::new());
+ state_vecs.insert(AddressState::TimeoutDuringRequest, Vec::new());
+ state_vecs.insert(AddressState::Good, Vec::new());
+ state_vecs.insert(AddressState::WasGood, Vec::new());
+ let mut good_node_services = HashMap::with_capacity(64);
+ for i in 0..64 {
+ good_node_services.insert(i, HashSet::new());
+ }
+ Nodes {
+ good_node_services,
+ nodes_to_state: HashMap::new(),
+ state_next_scan: state_vecs,
+ }
+ } }
}
+
+ let nodes_future = File::open(store.clone() + "/nodes").and_then(|f| {
+ let mut res = nodes_uninitd!();
+ let l = BufReader::new(f).lines();
+ for line_res in l {
+ let line = match line_res {
+ Ok(l) => l,
+ Err(_) => return future::ok(res),
+ };
+ let mut line_iter = line.split(',');
+ macro_rules! try_read {
+ ($lines: expr, $ty: ty) => { {
+ match $lines.next() {
+ Some(line) => match line.parse::<$ty>() {
+ Ok(res) => res,
+ Err(_) => return future::ok(res),
+ },
+ None => return future::ok(res),
+ }
+ } }
+ }
+ let sockaddr = try_read!(line_iter, SocketAddr);
+ let state = try_read!(line_iter, u8);
+ let last_services = try_read!(line_iter, u64);
+ let node = Node {
+ state: match AddressState::from_num(state) {
+ Some(v) => v,
+ None => return future::ok(res),
+ },
+ last_services,
+ last_update: Instant::now(),
+ last_good: Instant::now(),
+ };
+ if node.state == AddressState::Good {
+ for i in 0..64 {
+ if node.last_services & (1 << i) != 0 {
+ res.good_node_services.get_mut(&i).unwrap().insert(sockaddr);
+ }
+ }
+ }
+ res.state_next_scan.get_mut(&node.state).unwrap().push((Instant::now(), sockaddr));
+ res.nodes_to_state.insert(sockaddr, node);
+ }
+ future::ok(res)
+ }).or_else(|_| -> future::FutureResult<Nodes, ()> {
+ future::ok(nodes_uninitd!())
+ });
+ settings_future.join(nodes_future).and_then(move |((u64_settings, regex), nodes)| {
+ future::ok(Store {
+ u64_settings: RwLock::new(u64_settings),
+ subver_regex: RwLock::new(Arc::new(regex)),
+ nodes: RwLock::new(nodes),
+ store,
+ })
+ })
}
pub fn get_u64(&self, setting: U64Setting) -> u64 {
*self.u64_settings.read().unwrap().get(&setting).unwrap()
}
+ pub fn set_u64(&self, setting: U64Setting, value: u64) {
+ *self.u64_settings.write().unwrap().get_mut(&setting).unwrap() = value;
+ }
+
pub fn get_node_count(&self, state: AddressState) -> usize {
self.nodes.read().unwrap().state_next_scan.get(&state).unwrap().len()
}
- pub fn get_string(&self, _setting: StringSetting) -> String {
- self.subver_regex.read().unwrap().clone()
+ pub fn get_regex(&self, _setting: RegexSetting) -> Arc<Regex> {
+ Arc::clone(&*self.subver_regex.read().unwrap())
}
- pub fn add_fresh_nodes(&self, addresses: &Vec<(u32, Address)>) {
+ pub fn set_regex(&self, _setting: RegexSetting, value: Regex) {
+ *self.subver_regex.write().unwrap() = Arc::new(value);
+ }
+
+ pub fn add_fresh_addrs<I: Iterator<Item=SocketAddr>>(&self, addresses: I) -> u64 {
+ let mut res = 0;
let mut nodes = self.nodes.write().unwrap();
let cur_time = Instant::now();
- for &(_, ref addr) in addresses {
- if let Ok(socketaddr) = addr.socket_addr() {
- match nodes.nodes_to_state.entry(socketaddr.clone()) {
- hash_map::Entry::Vacant(e) => {
- e.insert(AddressState::Untested);
- nodes.state_next_scan.get_mut(&AddressState::Untested).unwrap().push((cur_time, socketaddr));
- },
- hash_map::Entry::Occupied(_) => {},
- }
- } else {
- //TODO: Handle onions
+ for addr in addresses {
+ match nodes.nodes_to_state.entry(addr.clone()) {
+ hash_map::Entry::Vacant(e) => {
+ e.insert(Node {
+ state: AddressState::Untested,
+ last_services: 0,
+ last_update: cur_time,
+ last_good: Instant::now(),
+ });
+ nodes.state_next_scan.get_mut(&AddressState::Untested).unwrap().push((cur_time, addr));
+ res += 1;
+ },
+ hash_map::Entry::Occupied(_) => {},
}
}
+ res
}
- pub fn set_node_state(&self, addr: SocketAddr, state: AddressState, services: u64) {
- let mut nodes = self.nodes.write().unwrap();
+ pub fn add_fresh_nodes(&self, addresses: &Vec<(u32, Address)>) {
+ self.add_fresh_addrs(addresses.iter().filter_map(|(_, addr)| {
+ match addr.socket_addr() {
+ Ok(socketaddr) => Some(socketaddr),
+ Err(_) => None, // TODO: Handle onions
+ }
+ }));
+ }
+
+ pub fn set_node_state(&self, addr: SocketAddr, state: AddressState, services: u64) -> AddressState {
+ let mut nodes_lock = self.nodes.write().unwrap();
+ let nodes = nodes_lock.borrow_mut();
let state_ref = nodes.nodes_to_state.get_mut(&addr).unwrap();
- if *state_ref == AddressState::Good && state != AddressState::Good {
- *state_ref = AddressState::WasGood;
- nodes.state_next_scan.get_mut(&AddressState::WasGood).unwrap().push((Instant::now(), addr));
+ let ret = state_ref.state;
+ let now = Instant::now();
+ if (state_ref.state == AddressState::Good || state_ref.state == AddressState::WasGood)
+ && state != AddressState::Good
+ && state_ref.last_good >= now - Duration::from_secs(self.get_u64(U64Setting::WasGoodTimeout)) {
+ state_ref.state = AddressState::WasGood;
+ for i in 0..64 {
+ if state_ref.last_services & (1 << i) != 0 {
+ nodes.good_node_services.get_mut(&i).unwrap().remove(&addr);
+ }
+ }
+ state_ref.last_services = 0;
+ nodes.state_next_scan.get_mut(&AddressState::WasGood).unwrap().push((now, addr));
} else {
- *state_ref = state;
- nodes.state_next_scan.get_mut(&state).unwrap().push((Instant::now(), addr));
+ state_ref.state = state;
+ 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.get_mut(&i).unwrap().insert(addr);
+ } else if services & (1 << i) == 0 && state_ref.last_services & (1 << i) != 0 {
+ nodes.good_node_services.get_mut(&i).unwrap().remove(&addr);
+ }
+ }
+ state_ref.last_services = services;
+ state_ref.last_good = now;
+ }
+ nodes.state_next_scan.get_mut(&state).unwrap().push((now, addr));
}
- if state == AddressState::Good {
+ state_ref.last_update = now;
+ ret
+ }
- }
+ pub fn save_data(&'static self) -> impl Future<Item=(), Error=()> {
+ let settings_file = self.store.clone() + "/settings";
+ let settings_future = File::create(settings_file.clone() + ".tmp").and_then(move |f| {
+ let settings_string = format!("{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}\n{}",
+ self.get_u64(U64Setting::ConnsPerSec),
+ self.get_u64(U64Setting::RunTimeout),
+ self.get_u64(U64Setting::WasGoodTimeout),
+ self.get_u64(U64Setting::MinProtocolVersion),
+ self.get_u64(U64Setting::RescanInterval(AddressState::Untested)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::LowBlockCount)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::HighBlockCount)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::LowVersion)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::BadVersion)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::NotFullNode)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::ProtocolViolation)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::Timeout)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::TimeoutDuringRequest)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::Good)),
+ self.get_u64(U64Setting::RescanInterval(AddressState::WasGood)),
+ self.get_regex(RegexSetting::SubverRegex).as_str());
+ write_all(f, settings_string).and_then(|(mut f, _)| {
+ f.poll_sync_all()
+ }).and_then(|_| {
+ tokio::fs::rename(settings_file.clone() + ".tmp", settings_file)
+ })
+ });
+
+ let nodes_file = self.store.clone() + "/nodes";
+ let nodes_future = File::create(nodes_file.clone() + ".tmp").and_then(move |f| {
+ let mut nodes_buff = String::new();
+ {
+ let nodes = self.nodes.read().unwrap();
+ nodes_buff.reserve(nodes.nodes_to_state.len() * 20);
+ for (ref sockaddr, ref node) in nodes.nodes_to_state.iter() {
+ nodes_buff += &sockaddr.to_string();
+ nodes_buff += ",";
+ nodes_buff += &node.state.to_num().to_string();
+ nodes_buff += ",";
+ nodes_buff += &node.last_services.to_string();
+ nodes_buff += "\n";
+ }
+ }
+ write_all(f, nodes_buff)
+ }).and_then(|(mut f, _)| {
+ f.poll_sync_all()
+ }).and_then(|_| {
+ tokio::fs::rename(nodes_file.clone() + ".tmp", nodes_file)
+ });
+
+ let dns_file = self.store.clone() + "/nodes.dump";
+ let dns_future = File::create(dns_file.clone() + ".tmp").and_then(move |f| {
+ let mut dns_buff = String::new();
+ {
+ let nodes = self.nodes.read().unwrap();
+ let mut rng = thread_rng();
+ for i in &[1u64, 4, 5, 8, 9, 12, 13, 1024, 1025, 1028, 1029, 1032, 1033, 1036, 1037] {
+ let mut v6_set = Vec::new();
+ let mut v4_set = Vec::new();
+ if i.count_ones() == 1 {
+ for j in 0..64 {
+ if i & (1 << j) != 0 {
+ let set_ref = nodes.good_node_services.get(&j).unwrap();
+ v4_set = set_ref.iter().filter(|e| e.is_ipv4() && e.port() == 8333)
+ .choose_multiple(&mut rng, 21).iter().map(|e| e.ip()).collect();
+ v6_set = set_ref.iter().filter(|e| e.is_ipv6() && e.port() == 8333)
+ .choose_multiple(&mut rng, 12).iter().map(|e| e.ip()).collect();
+ break;
+ }
+ }
+ } else if i.count_ones() == 2 {
+ let mut first_set = None;
+ let mut second_set = None;
+ for j in 0..64 {
+ if i & (1 << j) != 0 {
+ if first_set == None {
+ first_set = Some(nodes.good_node_services.get(&j).unwrap());
+ } else {
+ second_set = Some(nodes.good_node_services.get(&j).unwrap());
+ break;
+ }
+ }
+ }
+ v4_set = first_set.unwrap().intersection(second_set.unwrap())
+ .filter(|e| e.is_ipv4() && e.port() == 8333)
+ .choose_multiple(&mut rng, 21).iter().map(|e| e.ip()).collect();
+ v6_set = first_set.unwrap().intersection(second_set.unwrap())
+ .filter(|e| e.is_ipv6() && e.port() == 8333)
+ .choose_multiple(&mut rng, 12).iter().map(|e| e.ip()).collect();
+ } else {
+ //TODO: Could optimize this one a bit
+ let mut intersection;
+ let mut intersection_set_ref = None;
+ for j in 0..64 {
+ if i & (1 << j) != 0 {
+ if intersection_set_ref == None {
+ intersection_set_ref = Some(nodes.good_node_services.get(&j).unwrap());
+ } else {
+ let new_intersection = intersection_set_ref.unwrap()
+ .intersection(nodes.good_node_services.get(&j).unwrap()).map(|e| (*e).clone()).collect();
+ intersection = Some(new_intersection);
+ intersection_set_ref = Some(intersection.as_ref().unwrap());
+ }
+ }
+ }
+ v4_set = intersection_set_ref.unwrap().iter()
+ .filter(|e| e.is_ipv4() && e.port() == 8333)
+ .choose_multiple(&mut rng, 21).iter().map(|e| e.ip()).collect();
+ v6_set = intersection_set_ref.unwrap().iter()
+ .filter(|e| e.is_ipv6() && e.port() == 8333)
+ .choose_multiple(&mut rng, 12).iter().map(|e| e.ip()).collect();
+ }
+ for a in v4_set {
+ dns_buff += &format!("x{:x}.dnsseed\tIN\tA\t{}\n", i, a);
+ }
+ for a in v6_set {
+ dns_buff += &format!("x{:x}.dnsseed\tIN\tAAAA\t{}\n", i, a);
+ }
+ }
+ }
+ write_all(f, dns_buff)
+ }).and_then(|(mut f, _)| {
+ f.poll_sync_all()
+ }).and_then(|_| {
+ tokio::fs::rename(dns_file.clone() + ".tmp", dns_file)
+ });
+
+ settings_future.join3(nodes_future, dns_future).then(|_| { future::ok(()) })
}
pub fn get_next_scan_nodes(&self) -> Vec<SocketAddr> {
- let mut res = Vec::with_capacity(600);
+ let results = 30 * self.get_u64(U64Setting::ConnsPerSec) as usize;
+ let per_bucket_results = results / (AddressState::get_count() as usize);
+ let mut res = Vec::with_capacity(results);
let cur_time = Instant::now();
+
let mut nodes = self.nodes.write().unwrap();
- for (state, state_nodes) in nodes.state_next_scan.iter_mut() {
+ for (idx, (state, state_nodes)) in nodes.state_next_scan.iter_mut().enumerate() {
let cmp_time = cur_time - Duration::from_secs(self.get_u64(U64Setting::RescanInterval(*state)));
- let split_point = cmp::min(cmp::min(600 - res.len(), 60),
+ let split_point = cmp::min(cmp::min(results - res.len(), results - (per_bucket_results * (AddressState::get_count() as usize - idx))),
state_nodes.binary_search_by(|a| a.0.cmp(&cmp_time)).unwrap_or_else(|idx| idx));
let mut new_nodes = state_nodes.split_off(split_point);
mem::swap(&mut new_nodes, state_nodes);
projects / dnsseed-rust / blobdiff