Replaced DHT with custom one! Lets see if it works

This commit is contained in:
Igor Katson 2021-07-12 19:55:23 +01:00
parent 5c41796485
commit 2eabebb5c3
14 changed files with 192 additions and 350 deletions

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@ -6,13 +6,12 @@ use std::{
use bencode::ByteBuf;
use clone_to_owned::CloneToOwned;
use librqbit_core::id20::Id20;
use serde::{
de::{IgnoredAny, Unexpected},
Deserialize, Deserializer, Serialize,
};
use crate::id20::Id20;
#[derive(Debug)]
enum MessageType {
Request,

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@ -7,13 +7,12 @@ use crate::{
bprotocol::{
self, CompactNodeInfo, FindNodeRequest, GetPeersRequest, Message, MessageKind, Node,
},
id20::Id20,
routing_table::{InsertResult, RoutingTable},
};
use anyhow::Context;
use bencode::ByteString;
use futures::{stream::FuturesUnordered, StreamExt};
use librqbit_core::peer_id::generate_peer_id;
use librqbit_core::{id20::Id20, peer_id::generate_peer_id};
use log::{debug, info, trace, warn};
use parking_lot::Mutex;
use tokio::{

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@ -1,131 +1 @@
use std::{cmp::Ordering, str::FromStr};
use serde::{Deserialize, Deserializer, Serialize};
#[derive(Clone, Copy, PartialEq, Eq, Hash)]
pub struct Id20(pub [u8; 20]);
impl FromStr for Id20 {
type Err = anyhow::Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let mut out = [0u8; 20];
if s.len() != 40 {
anyhow::bail!("expected a hex string of length 40")
};
hex::decode_to_slice(s, &mut out)?;
Ok(Id20(out))
}
}
impl std::fmt::Debug for Id20 {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "<")?;
for byte in self.0 {
write!(f, "{:02x?}", byte)?;
}
write!(f, ">")?;
Ok(())
}
}
impl Serialize for Id20 {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
serializer.serialize_bytes(&self.0)
}
}
impl<'de> Deserialize<'de> for Id20 {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
struct Visitor;
impl<'de> serde::de::Visitor<'de> for Visitor {
type Value = Id20;
fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(formatter, "a 20 byte slice")
}
fn visit_bytes<E>(self, v: &[u8]) -> Result<Self::Value, E>
where
E: serde::de::Error,
{
if v.len() != 20 {
return Err(E::invalid_length(20, &self));
}
let mut buf = [0u8; 20];
buf.copy_from_slice(&v);
Ok(Id20(buf))
}
}
deserializer.deserialize_bytes(Visitor {})
}
}
impl Id20 {
pub fn distance(&self, other: &Id20) -> Id20 {
let mut xor = [0u8; 20];
for (idx, (s, o)) in self
.0
.iter()
.copied()
.zip(other.0.iter().copied())
.enumerate()
{
xor[idx] = s ^ o;
}
Id20(xor)
}
pub fn set_bit(&mut self, bit: u8, value: bool) {
let n = &mut self.0[(bit / 8) as usize];
if value {
*n |= 1 << (7 - bit % 8)
} else {
let mask = !(1 << (7 - bit % 8));
*n &= mask;
}
}
pub fn set_bits_range(&mut self, r: std::ops::Range<u8>, value: bool) {
for bit in r {
self.set_bit(bit, value)
}
}
}
impl Ord for Id20 {
fn cmp(&self, other: &Id20) -> Ordering {
for (s, o) in self.0.iter().copied().zip(other.0.iter().copied()) {
match s.cmp(&o) {
Ordering::Less => return Ordering::Less,
Ordering::Equal => continue,
Ordering::Greater => return Ordering::Greater,
}
}
Ordering::Equal
}
}
impl PartialOrd<Id20> for Id20 {
fn partial_cmp(&self, other: &Id20) -> Option<Ordering> {
Some(self.cmp(other))
}
}
#[cfg(test)]
mod tests {
use super::Id20;
#[test]
fn test_set_bit_range() {
let mut id = Id20([0u8; 20]);
id.set_bits_range(9..17, true);
assert_eq!(
id,
Id20([0, 127, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])
)
}
}

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@ -1,4 +1,6 @@
pub mod bprotocol;
pub mod dht;
pub mod id20;
pub mod routing_table;
mod bprotocol;
mod dht;
mod routing_table;
pub use dht::Dht;
pub use librqbit_core::id20::Id20;

View file

@ -1,7 +1,7 @@
use std::{collections::HashSet, str::FromStr, time::Duration};
use std::{collections::HashSet, str::FromStr};
use anyhow::Context;
use dht::{dht::Dht, id20::Id20};
use dht::{Dht, Id20};
use tokio_stream::StreamExt;
#[tokio::main]

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@ -3,10 +3,9 @@ use std::{
time::{Duration, Instant},
};
use librqbit_core::id20::Id20;
use log::debug;
use crate::id20::Id20;
#[derive(Debug)]
enum BucketTreeNode {
Leaf(Vec<RoutingTableNode>),
@ -426,9 +425,10 @@ impl RoutingTable {
mod tests {
use std::net::SocketAddrV4;
use librqbit_core::id20::Id20;
use rand::Rng;
use crate::{id20::Id20, routing_table::compute_split_start_end};
use crate::routing_table::compute_split_start_end;
use super::RoutingTable;