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Author SHA1 Message Date
5a5f88cb13
types: fix pruned BlockCompleteEntry (#338)
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fix pruned `BlockCompleteEntry`
2024-11-11 23:16:08 +00:00
525e20e841
Fix ci and loosen version requirements (#335)
* add deny exception + loosen version requirements

* add a comment

* remove `expect`
2024-11-04 15:22:43 +00:00
SyntheticBird
b6c4adc83a
p2p: Implement P2P Bucket data structure (#329)
Implements P2P Bucket data structure

This commit implements a "Bucket" data structure that is a collection
of data that discriminates its items into "buckets" (vector of size N)
following a defined function.

- Implements Bucket data structure and Bucketable trait
- Implements Bucketable for Ipv4Addr
- Added the crate to the workspace dependencies
- Added arrayvec as a dependency
2024-11-02 00:45:56 +00:00
9 changed files with 426 additions and 267 deletions

View file

@ -1,34 +0,0 @@
# This runs `cargo audit` on all dependencies (only if Cargo deps changed)
name: Audit
on:
push:
paths:
- '**/Cargo.toml'
- '**/Cargo.lock'
workflow_dispatch:
env:
CARGO_TERM_COLOR: always
jobs:
audit:
runs-on: ubuntu-latest
steps:
- name: Cache
uses: actions/cache@v4
with:
path: |
~/.cargo
target
key: audit
- uses: actions/checkout@v4
with:
submodules: recursive
- name: Install dependencies
run: cargo install cargo-audit --locked
- name: Audit
run: cargo audit

386
Cargo.lock generated

File diff suppressed because it is too large Load diff

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@ -16,6 +16,7 @@ members = [
"net/wire",
"p2p/p2p",
"p2p/p2p-core",
"p2p/bucket",
"p2p/dandelion-tower",
"p2p/async-buffer",
"p2p/address-book",
@ -64,6 +65,7 @@ cuprate-levin = { path = "net/levin" ,default-feature
cuprate-wire = { path = "net/wire" ,default-features = false}
cuprate-p2p = { path = "p2p/p2p" ,default-features = false}
cuprate-p2p-core = { path = "p2p/p2p-core" ,default-features = false}
cuprate-p2p-bucket = { path = "p2p/p2p-bucket" ,default-features = false}
cuprate-dandelion-tower = { path = "p2p/dandelion-tower" ,default-features = false}
cuprate-async-buffer = { path = "p2p/async-buffer" ,default-features = false}
cuprate-address-book = { path = "p2p/address-book" ,default-features = false}
@ -79,54 +81,55 @@ cuprate-rpc-types = { path = "rpc/types" ,default-feature
cuprate-rpc-interface = { path = "rpc/interface" ,default-features = false}
# External dependencies
anyhow = { version = "1.0.89", default-features = false }
async-trait = { version = "0.1.82", default-features = false }
bitflags = { version = "2.6.0", default-features = false }
anyhow = { version = "1", default-features = false }
arrayvec = { version = "0.7", default-features = false }
async-trait = { version = "0.1", default-features = false }
bitflags = { version = "2", default-features = false }
blake3 = { version = "1", default-features = false }
borsh = { version = "1.5.1", default-features = false }
bytemuck = { version = "1.18.0", default-features = false }
bytes = { version = "1.7.2", default-features = false }
cfg-if = { version = "1.0.0", default-features = false }
clap = { version = "4.5.17", default-features = false }
chrono = { version = "0.4.38", default-features = false }
crypto-bigint = { version = "0.5.5", default-features = false }
crossbeam = { version = "0.8.4", default-features = false }
const_format = { version = "0.2.33", default-features = false }
curve25519-dalek = { version = "4.1.3", default-features = false }
dashmap = { version = "5.5.3", default-features = false }
dirs = { version = "5.0.1", default-features = false }
futures = { version = "0.3.30", default-features = false }
hex = { version = "0.4.3", default-features = false }
borsh = { version = "1", default-features = false }
bytemuck = { version = "1", default-features = false }
bytes = { version = "1", default-features = false }
cfg-if = { version = "1", default-features = false }
clap = { version = "4", default-features = false }
chrono = { version = "0.4", default-features = false }
crypto-bigint = { version = "0.5", default-features = false }
crossbeam = { version = "0.8", default-features = false }
const_format = { version = "0.2", default-features = false }
curve25519-dalek = { version = "4", default-features = false }
dashmap = { version = "6", default-features = false }
dirs = { version = "5", default-features = false }
futures = { version = "0.3", default-features = false }
hex = { version = "0.4", default-features = false }
hex-literal = { version = "0.4", default-features = false }
indexmap = { version = "2.5.0", default-features = false }
indexmap = { version = "2", default-features = false }
monero-serai = { git = "https://github.com/Cuprate/serai.git", rev = "d5205ce", default-features = false }
paste = { version = "1.0.15", default-features = false }
pin-project = { version = "1.1.5", default-features = false }
paste = { version = "1", default-features = false }
pin-project = { version = "1", default-features = false }
randomx-rs = { git = "https://github.com/Cuprate/randomx-rs.git", rev = "0028464", default-features = false }
rand = { version = "0.8.5", default-features = false }
rand_distr = { version = "0.4.3", default-features = false }
rayon = { version = "1.10.0", default-features = false }
serde_bytes = { version = "0.11.15", default-features = false }
serde_json = { version = "1.0.128", default-features = false }
serde = { version = "1.0.210", default-features = false }
strum = { version = "0.26.3", default-features = false }
thiserror = { version = "1.0.63", default-features = false }
thread_local = { version = "1.1.8", default-features = false }
tokio-util = { version = "0.7.12", default-features = false }
tokio-stream = { version = "0.1.16", default-features = false }
tokio = { version = "1.40.0", default-features = false }
rand = { version = "0.8", default-features = false }
rand_distr = { version = "0.4", default-features = false }
rayon = { version = "1", default-features = false }
serde_bytes = { version = "0.11", default-features = false }
serde_json = { version = "1", default-features = false }
serde = { version = "1", default-features = false }
strum = { version = "0.26", default-features = false }
thiserror = { version = "1", default-features = false }
thread_local = { version = "1", default-features = false }
tokio-util = { version = "0.7", default-features = false }
tokio-stream = { version = "0.1", default-features = false }
tokio = { version = "1", default-features = false }
tower = { git = "https://github.com/Cuprate/tower.git", rev = "6c7faf0", default-features = false } # <https://github.com/tower-rs/tower/pull/796>
tracing-subscriber = { version = "0.3.18", default-features = false }
tracing = { version = "0.1.40", default-features = false }
tracing-subscriber = { version = "0.3", default-features = false }
tracing = { version = "0.1", default-features = false }
## workspace.dev-dependencies
monero-rpc = { git = "https://github.com/Cuprate/serai.git", rev = "d5205ce" }
monero-simple-request-rpc = { git = "https://github.com/Cuprate/serai.git", rev = "d5205ce" }
tempfile = { version = "3" }
pretty_assertions = { version = "1.4.1" }
pretty_assertions = { version = "1" }
proptest = { version = "1" }
proptest-derive = { version = "0.4.0" }
tokio-test = { version = "0.4.4" }
proptest-derive = { version = "0.5" }
tokio-test = { version = "0.4" }
## TODO:
## Potential dependencies.

View file

@ -35,6 +35,7 @@ cargo doc --open --package cuprate-blockchain
| [`cuprate-async-buffer`](https://doc.cuprate.org/cuprate_async_buffer) | [`p2p/async-buffer/`](https://github.com/Cuprate/cuprate/tree/main/p2p/async-buffer) | A bounded SPSC, FIFO, asynchronous buffer that supports arbitrary weights for values
| [`cuprate-dandelion-tower`](https://doc.cuprate.org/cuprate_dandelion_tower) | [`p2p/dandelion-tower/`](https://github.com/Cuprate/cuprate/tree/main/p2p/dandelion-tower) | TODO
| [`cuprate-p2p`](https://doc.cuprate.org/cuprate_p2p) | [`p2p/p2p/`](https://github.com/Cuprate/cuprate/tree/main/p2p/p2p) | TODO
| [`cuprate-p2p-bucket`](https://doc.cuprate.org/cuprate_p2p_bucket) | [`p2p/bucket/`](https://github.com/Cuprate/cuprate/tree/main/p2p/bucket) | A collection data structure discriminating its items into "buckets" of limited size.
| [`cuprate-p2p-core`](https://doc.cuprate.org/cuprate_p2p_core) | [`p2p/p2p-core/`](https://github.com/Cuprate/cuprate/tree/main/p2p/p2p-core) | TODO
## Storage

View file

@ -1,5 +1,3 @@
#![expect(non_local_definitions, reason = "proptest macro")]
use std::{
future::Future,
pin::Pin,

View file

@ -81,6 +81,9 @@ ignore = [
#{ id = "RUSTSEC-0000-0000", reason = "you can specify a reason the advisory is ignored" },
#"a-crate-that-is-yanked@0.1.1", # you can also ignore yanked crate versions if you wish
#{ crate = "a-crate-that-is-yanked@0.1.1", reason = "you can specify why you are ignoring the yanked crate" },
# TODO: check this is sorted before a beta release.
{ id = "RUSTSEC-2024-0370", reason = "unmaintained crate, not necessarily vulnerable yet." }
]
# If this is true, then cargo deny will use the git executable to fetch advisory database.
# If this is false, then it uses a built-in git library.
@ -110,6 +113,7 @@ allow = [
"Apache-2.0", # https://tldrlegal.com/license/apache-license-2.0-(apache-2.0)
"MPL-2.0", # https://www.mozilla.org/en-US/MPL/2.0/FAQ/
"BSL-1.0", # https://tldrlegal.com/license/boost-software-license-1.0-explained
"Zlib", # https://spdx.org/licenses/Zlib.html
# OpenSSL 3.0+ uses Apache-2.0
# OpenSSL 1.x.x uses https://www.openssl.org/source/license-openssl-ssleay.txt

13
p2p/bucket/Cargo.toml Normal file
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@ -0,0 +1,13 @@
[package]
name = "cuprate-p2p-bucket"
version = "0.1.0"
edition = "2021"
license = "MIT"
authors = ["SyntheticBird"]
[dependencies]
arrayvec = { workspace = true }
rand = { workspace = true, features = ["std", "std_rng"]}
[lints]
workspace = true

172
p2p/bucket/src/lib.rs Normal file
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@ -0,0 +1,172 @@
//! Bucket data structure
//!
//! A collection data structure that discriminates its unique items and place them into "buckets".
//!
//! The item must implement the [`Bucketable`] trait that defines how to create the discriminant
//! from the item type. The data structure will internally contain any item into "buckets" or vectors
//! of sized capacity `N` that regroup all the stored items with this specific discriminant.
//!
//! A practical example of this data structure is for storing `N` amount of IP discriminated by their subnets.
//! You can store in each "buckets" corresponding to a `/16` subnet up to `N` IPs of that subnet.
//!
//! # Example
//!
//! ```
//! use cuprate_p2p_bucket::Bucket;
//! use std::net::Ipv4Addr;
//!
//! // Create a new bucket that can store at most 2 IPs in a particular `/16` subnet.
//! let mut bucket = Bucket::<2,Ipv4Addr>::new();
//!
//! // Fulfill the `96.96.0.0/16` bucket.
//! bucket.push("96.96.0.1".parse().unwrap());
//! bucket.push("96.96.0.2".parse().unwrap());
//! assert_eq!(2, bucket.len());
//! assert_eq!(2, bucket.len_bucket(&[96_u8,96_u8]).unwrap());
//!
//! // Push a new IP from another subnet
//! bucket.push("127.0.0.1".parse().unwrap());
//! assert_eq!(3, bucket.len());
//! assert_eq!(2, bucket.len_bucket(&[96_u8,96_u8]).unwrap());
//! assert_eq!(1, bucket.len_bucket(&[127_u8,0_u8]).unwrap());
//!
//! // Attempting to push a new IP within `96.96.0.0/16` bucket will return the IP back
//! // as this subnet is already full.
//! let pushed = bucket.push("96.96.0.3".parse().unwrap());
//! assert!(pushed.is_some());
//! assert_eq!(2, bucket.len_bucket(&[96_u8,96_u8]).unwrap());
//!
//! ```
use arrayvec::{ArrayVec, CapacityError};
use rand::random;
use std::{collections::BTreeMap, net::Ipv4Addr};
/// A discriminant that can be computed from the type.
pub trait Bucketable: Sized + Eq + Clone {
/// The type of the discriminant being used in the Binary tree.
type Discriminant: Ord + AsRef<[u8]>;
/// Method that can compute the discriminant from the item.
fn discriminant(&self) -> Self::Discriminant;
}
/// A collection data structure discriminating its unique items
/// with a specified method. Limiting the amount of items stored
/// with that discriminant to the const `N`.
pub struct Bucket<const N: usize, I: Bucketable> {
/// The storage of the bucket
storage: BTreeMap<I::Discriminant, ArrayVec<I, N>>,
}
impl<const N: usize, I: Bucketable> Bucket<N, I> {
/// Create a new Bucket
pub const fn new() -> Self {
Self {
storage: BTreeMap::new(),
}
}
/// Push a new element into the Bucket
///
/// Will internally create a new vector for each new discriminant being
/// generated from an item.
///
/// This function WILL NOT push the element if it already exists.
///
/// Return `None` if the item has been pushed or ignored. `Some(I)` if
/// the vector is full.
///
/// # Example
///
/// ```
/// use cuprate_p2p_bucket::Bucket;
/// use std::net::Ipv4Addr;
///
/// let mut bucket = Bucket::<8,Ipv4Addr>::new();
///
/// // Push a first IP address.
/// bucket.push("127.0.0.1".parse().unwrap());
/// assert_eq!(1, bucket.len());
///
/// // Push the same IP address a second time.
/// bucket.push("127.0.0.1".parse().unwrap());
/// assert_eq!(1, bucket.len());
/// ```
pub fn push(&mut self, item: I) -> Option<I> {
let discriminant = item.discriminant();
if let Some(vec) = self.storage.get_mut(&discriminant) {
// Push the item if it doesn't exist.
if !vec.contains(&item) {
return vec.try_push(item).err().map(CapacityError::element);
}
} else {
// Initialize the vector if not found.
let mut vec = ArrayVec::<I, N>::new();
vec.push(item);
self.storage.insert(discriminant, vec);
}
None
}
/// Will attempt to remove an item from the bucket.
pub fn remove(&mut self, item: &I) -> Option<I> {
self.storage.get_mut(&item.discriminant()).and_then(|vec| {
vec.iter()
.enumerate()
.find_map(|(i, v)| (item == v).then_some(i))
.map(|index| vec.swap_remove(index))
})
}
/// Return the number of item stored within the storage
pub fn len(&self) -> usize {
self.storage.values().map(ArrayVec::len).sum()
}
/// Return the number of item stored with a specific discriminant.
///
/// This method returns None if the bucket with this discriminant
/// doesn't exist.
pub fn len_bucket(&self, discriminant: &I::Discriminant) -> Option<usize> {
self.storage.get(discriminant).map(ArrayVec::len)
}
/// Return `true` if the storage contains no items
pub fn is_empty(&self) -> bool {
self.len() == 0
}
/// Return a reference to an item chosen at random.
///
/// Repeated use of this function will provide a normal distribution of
/// items based on their discriminants.
pub fn get_random(&mut self) -> Option<&I> {
// Get the total amount of discriminants to explore.
let len = self.storage.len();
// Get a random bucket.
let (_, vec) = self.storage.iter().nth(random::<usize>() / len).unwrap();
// Return a reference chose at random.
vec.get(random::<usize>() / vec.len())
}
}
impl<const N: usize, I: Bucketable> Default for Bucket<N, I> {
fn default() -> Self {
Self::new()
}
}
impl Bucketable for Ipv4Addr {
/// We are discriminating by `/16` subnets.
type Discriminant = [u8; 2];
fn discriminant(&self) -> Self::Discriminant {
[self.octets()[0], self.octets()[1]]
}
}

View file

@ -136,7 +136,7 @@ impl TransactionBlobs {
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct PrunedTxBlobEntry {
/// The transaction.
pub tx: Bytes,
pub blob: Bytes,
/// The prunable transaction hash.
pub prunable_hash: ByteArray<32>,
}
@ -144,7 +144,7 @@ pub struct PrunedTxBlobEntry {
#[cfg(feature = "epee")]
epee_object!(
PrunedTxBlobEntry,
tx: Bytes,
blob: Bytes,
prunable_hash: ByteArray<32>,
);