diff --git a/Cargo.lock b/Cargo.lock
index 05b361d42820..6e86aa901131 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6167,7 +6167,7 @@ dependencies = [
"fatality",
"futures",
"futures-timer",
- "lru 0.7.8",
+ "lru 0.8.0",
"parity-scale-codec",
"polkadot-erasure-coding",
"polkadot-node-network-protocol",
@@ -6197,7 +6197,7 @@ dependencies = [
"futures",
"futures-timer",
"log",
- "lru 0.7.8",
+ "lru 0.8.0",
"parity-scale-codec",
"polkadot-erasure-coding",
"polkadot-node-network-protocol",
@@ -6335,7 +6335,7 @@ dependencies = [
"futures",
"futures-timer",
"lazy_static",
- "lru 0.7.8",
+ "lru 0.8.0",
"parity-scale-codec",
"polkadot-erasure-coding",
"polkadot-node-network-protocol",
@@ -6455,7 +6455,7 @@ dependencies = [
"futures-timer",
"kvdb",
"kvdb-memorydb",
- "lru 0.7.8",
+ "lru 0.8.0",
"merlin",
"parity-scale-codec",
"parking_lot 0.12.1",
@@ -6624,7 +6624,7 @@ dependencies = [
"futures-timer",
"kvdb",
"kvdb-memorydb",
- "lru 0.7.8",
+ "lru 0.8.0",
"parity-scale-codec",
"polkadot-node-primitives",
"polkadot-node-subsystem",
@@ -6911,7 +6911,7 @@ dependencies = [
"kvdb-shared-tests",
"lazy_static",
"log",
- "lru 0.7.8",
+ "lru 0.8.0",
"parity-db",
"parity-scale-codec",
"parity-util-mem",
@@ -6945,7 +6945,7 @@ dependencies = [
"femme",
"futures",
"futures-timer",
- "lru 0.7.8",
+ "lru 0.8.0",
"orchestra",
"parity-util-mem",
"parking_lot 0.12.1",
@@ -7302,7 +7302,7 @@ dependencies = [
"kvdb",
"kvdb-rocksdb",
"log",
- "lru 0.7.8",
+ "lru 0.8.0",
"pallet-babe",
"pallet-im-online",
"pallet-staking",
@@ -11922,7 +11922,7 @@ version = "1.6.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if 0.1.10",
"digest 0.10.3",
"rand 0.8.5",
"static_assertions",
diff --git a/node/core/approval-voting/Cargo.toml b/node/core/approval-voting/Cargo.toml
index f2572cac8232..e39a589b5675 100644
--- a/node/core/approval-voting/Cargo.toml
+++ b/node/core/approval-voting/Cargo.toml
@@ -10,7 +10,7 @@ futures-timer = "3.0.2"
parity-scale-codec = { version = "3.1.5", default-features = false, features = ["bit-vec", "derive"] }
gum = { package = "tracing-gum", path = "../../gum" }
bitvec = { version = "1.0.0", default-features = false, features = ["alloc"] }
-lru = "0.7"
+lru = "0.8"
merlin = "2.0"
schnorrkel = "0.9.1"
kvdb = "0.11.0"
diff --git a/node/core/approval-voting/src/lib.rs b/node/core/approval-voting/src/lib.rs
index ac025f366ab7..467d8be612e9 100644
--- a/node/core/approval-voting/src/lib.rs
+++ b/node/core/approval-voting/src/lib.rs
@@ -70,6 +70,7 @@ use std::{
collections::{
btree_map::Entry as BTMEntry, hash_map::Entry as HMEntry, BTreeMap, HashMap, HashSet,
},
+ num::NonZeroUsize,
sync::Arc,
time::Duration,
};
@@ -104,7 +105,11 @@ const APPROVAL_CHECKING_TIMEOUT: Duration = Duration::from_secs(120);
/// Value rather arbitrarily: Should not be hit in practice, it exists to more easily diagnose dead
/// lock issues for example.
const WAIT_FOR_SIGS_TIMEOUT: Duration = Duration::from_millis(500);
-const APPROVAL_CACHE_SIZE: usize = 1024;
+const APPROVAL_CACHE_SIZE: NonZeroUsize = match NonZeroUsize::new(1024) {
+ Some(cap) => cap,
+ None => panic!("Approval cache size must be non-zero."),
+};
+
const TICK_TOO_FAR_IN_FUTURE: Tick = 20; // 10 seconds.
const APPROVAL_DELAY: Tick = 2;
const LOG_TARGET: &str = "parachain::approval-voting";
diff --git a/node/core/dispute-coordinator/Cargo.toml b/node/core/dispute-coordinator/Cargo.toml
index bc22b40c8529..7d7bc25e91d4 100644
--- a/node/core/dispute-coordinator/Cargo.toml
+++ b/node/core/dispute-coordinator/Cargo.toml
@@ -10,7 +10,7 @@ gum = { package = "tracing-gum", path = "../../gum" }
parity-scale-codec = "3.1.5"
kvdb = "0.11.0"
thiserror = "1.0.31"
-lru = "0.7.7"
+lru = "0.8.0"
fatality = "0.0.6"
polkadot-primitives = { path = "../../../primitives" }
diff --git a/node/core/dispute-coordinator/src/scraping/mod.rs b/node/core/dispute-coordinator/src/scraping/mod.rs
index b45dbfa95197..7d5d33e1ff4b 100644
--- a/node/core/dispute-coordinator/src/scraping/mod.rs
+++ b/node/core/dispute-coordinator/src/scraping/mod.rs
@@ -14,7 +14,10 @@
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see .
-use std::collections::{BTreeMap, HashSet};
+use std::{
+ collections::{BTreeMap, HashSet},
+ num::NonZeroUsize,
+};
use futures::channel::oneshot;
use lru::LruCache;
@@ -44,7 +47,10 @@ mod tests;
/// `last_observed_blocks` LRU. This means, this value should the very least be as large as the
/// number of expected forks for keeping chain scraping efficient. Making the LRU much larger than
/// that has very limited use.
-const LRU_OBSERVED_BLOCKS_CAPACITY: usize = 20;
+const LRU_OBSERVED_BLOCKS_CAPACITY: NonZeroUsize = match NonZeroUsize::new(20) {
+ Some(cap) => cap,
+ None => panic!("Observed blocks cache size must be non-zero"),
+};
/// Chain scraper
///
diff --git a/node/network/availability-distribution/Cargo.toml b/node/network/availability-distribution/Cargo.toml
index 43d56a1ace24..3e8626c18898 100644
--- a/node/network/availability-distribution/Cargo.toml
+++ b/node/network/availability-distribution/Cargo.toml
@@ -19,7 +19,7 @@ sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "maste
thiserror = "1.0.31"
rand = "0.8.5"
derive_more = "0.99.17"
-lru = "0.7.7"
+lru = "0.8.0"
fatality = "0.0.6"
[dev-dependencies]
diff --git a/node/network/availability-distribution/src/requester/session_cache.rs b/node/network/availability-distribution/src/requester/session_cache.rs
index 6d41d9301233..cf01e448b70b 100644
--- a/node/network/availability-distribution/src/requester/session_cache.rs
+++ b/node/network/availability-distribution/src/requester/session_cache.rs
@@ -14,7 +14,7 @@
// You should have received a copy of the GNU General Public License
// along with Polkadot. If not, see .
-use std::collections::HashSet;
+use std::{collections::HashSet, num::NonZeroUsize};
use lru::LruCache;
use rand::{seq::SliceRandom, thread_rng};
@@ -85,7 +85,7 @@ impl SessionCache {
pub fn new() -> Self {
SessionCache {
// We need to cache the current and the last session the most:
- session_info_cache: LruCache::new(2),
+ session_info_cache: LruCache::new(NonZeroUsize::new(2).unwrap()),
}
}
diff --git a/node/network/availability-recovery/Cargo.toml b/node/network/availability-recovery/Cargo.toml
index fce9755a05a3..86f6237740fa 100644
--- a/node/network/availability-recovery/Cargo.toml
+++ b/node/network/availability-recovery/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
[dependencies]
futures = "0.3.21"
-lru = "0.7.7"
+lru = "0.8.0"
rand = "0.8.5"
fatality = "0.0.6"
thiserror = "1.0.31"
diff --git a/node/network/availability-recovery/src/lib.rs b/node/network/availability-recovery/src/lib.rs
index 62401e3ad615..f2f92cc54490 100644
--- a/node/network/availability-recovery/src/lib.rs
+++ b/node/network/availability-recovery/src/lib.rs
@@ -20,6 +20,7 @@
use std::{
collections::{HashMap, VecDeque},
+ num::NonZeroUsize,
pin::Pin,
time::Duration,
};
@@ -77,7 +78,10 @@ const LOG_TARGET: &str = "parachain::availability-recovery";
const N_PARALLEL: usize = 50;
// Size of the LRU cache where we keep recovered data.
-const LRU_SIZE: usize = 16;
+const LRU_SIZE: NonZeroUsize = match NonZeroUsize::new(16) {
+ Some(cap) => cap,
+ None => panic!("Availability-recovery cache size must be non-zero."),
+};
const COST_INVALID_REQUEST: Rep = Rep::CostMajor("Peer sent unparsable request");
diff --git a/node/network/dispute-distribution/Cargo.toml b/node/network/dispute-distribution/Cargo.toml
index f50f24bf42c8..c37f26f7bece 100644
--- a/node/network/dispute-distribution/Cargo.toml
+++ b/node/network/dispute-distribution/Cargo.toml
@@ -20,7 +20,7 @@ sp-application-crypto = { git = "https://github.com/paritytech/substrate", branc
sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
thiserror = "1.0.31"
fatality = "0.0.6"
-lru = "0.7.7"
+lru = "0.8.0"
[dev-dependencies]
async-trait = "0.1.57"
diff --git a/node/network/dispute-distribution/src/lib.rs b/node/network/dispute-distribution/src/lib.rs
index aefd66e0ae79..440b70b786d5 100644
--- a/node/network/dispute-distribution/src/lib.rs
+++ b/node/network/dispute-distribution/src/lib.rs
@@ -24,6 +24,8 @@
//! The sender is responsible for getting our vote out, see [`sender`]. The receiver handles
//! incoming [`DisputeRequest`]s and offers spam protection, see [`receiver`].
+use std::num::NonZeroUsize;
+
use futures::{channel::mpsc, FutureExt, StreamExt, TryFutureExt};
use polkadot_node_network_protocol::authority_discovery::AuthorityDiscovery;
@@ -145,7 +147,8 @@ where
) -> Self {
let runtime = RuntimeInfo::new_with_config(runtime::Config {
keystore: Some(keystore),
- session_cache_lru_size: DISPUTE_WINDOW.get() as usize,
+ session_cache_lru_size: NonZeroUsize::new(DISPUTE_WINDOW.get() as usize)
+ .expect("Dispute window can not be 0; qed"),
});
let (tx, sender_rx) = mpsc::channel(1);
let disputes_sender = DisputeSender::new(tx, metrics.clone());
diff --git a/node/network/dispute-distribution/src/receiver/mod.rs b/node/network/dispute-distribution/src/receiver/mod.rs
index 9193947e78d1..c38ca2133f54 100644
--- a/node/network/dispute-distribution/src/receiver/mod.rs
+++ b/node/network/dispute-distribution/src/receiver/mod.rs
@@ -16,6 +16,7 @@
use std::{
collections::HashSet,
+ num::NonZeroUsize,
pin::Pin,
task::{Context, Poll},
};
@@ -61,6 +62,11 @@ const COST_NOT_A_VALIDATOR: Rep = Rep::CostMajor("Reporting peer was not a valid
/// How many statement imports we want to issue in parallel:
pub const MAX_PARALLEL_IMPORTS: usize = 10;
+const BANNED_PEERS_CACHE_SIZE: NonZeroUsize = match NonZeroUsize::new(MAX_PARALLEL_IMPORTS) {
+ Some(cap) => cap,
+ None => panic!("Banned peers cache size should not be 0."),
+};
+
/// State for handling incoming `DisputeRequest` messages.
///
/// This is supposed to run as its own task in order to easily impose back pressure on the incoming
@@ -146,7 +152,8 @@ where
) -> Self {
let runtime = RuntimeInfo::new_with_config(runtime::Config {
keystore: None,
- session_cache_lru_size: DISPUTE_WINDOW.get() as usize,
+ session_cache_lru_size: NonZeroUsize::new(DISPUTE_WINDOW.get() as usize)
+ .expect("Dispute window can not be 0; qed"),
});
Self {
runtime,
@@ -156,7 +163,7 @@ where
pending_imports: PendingImports::new(),
// Size of MAX_PARALLEL_IMPORTS ensures we are going to immediately get rid of any
// malicious requests still pending in the incoming queue.
- banned_peers: LruCache::new(MAX_PARALLEL_IMPORTS),
+ banned_peers: LruCache::new(BANNED_PEERS_CACHE_SIZE),
metrics,
}
}
@@ -222,7 +229,7 @@ where
}
// Wait for a free slot:
- if self.pending_imports.len() >= MAX_PARALLEL_IMPORTS as usize {
+ if self.pending_imports.len() >= MAX_PARALLEL_IMPORTS {
// Wait for one to finish:
let r = self.pending_imports.next().await;
self.ban_bad_peer(r.expect("pending_imports.len() is greater 0. qed."))?;
diff --git a/node/overseer/Cargo.toml b/node/overseer/Cargo.toml
index 0db382e4e783..4bc360df47e3 100644
--- a/node/overseer/Cargo.toml
+++ b/node/overseer/Cargo.toml
@@ -17,7 +17,7 @@ polkadot-node-metrics = { path = "../metrics" }
polkadot-primitives = { path = "../../primitives" }
orchestra = "0.0.2"
gum = { package = "tracing-gum", path = "../gum" }
-lru = "0.7"
+lru = "0.8"
parity-util-mem = { version = "0.11.0", default-features = false }
sp-core = { git = "https://github.com/paritytech/substrate", branch = "master" }
async-trait = "0.1.57"
diff --git a/node/overseer/src/lib.rs b/node/overseer/src/lib.rs
index 1ce6a6fdb658..70dbe92b2432 100644
--- a/node/overseer/src/lib.rs
+++ b/node/overseer/src/lib.rs
@@ -62,6 +62,7 @@
use std::{
collections::{hash_map, HashMap},
fmt::{self, Debug},
+ num::NonZeroUsize,
pin::Pin,
sync::Arc,
time::Duration,
@@ -112,7 +113,10 @@ pub use orchestra::{
/// Store 2 days worth of blocks, not accounting for forks,
/// in the LRU cache. Assumes a 6-second block time.
-pub const KNOWN_LEAVES_CACHE_SIZE: usize = 2 * 24 * 3600 / 6;
+pub const KNOWN_LEAVES_CACHE_SIZE: NonZeroUsize = match NonZeroUsize::new(2 * 24 * 3600 / 6) {
+ Some(cap) => cap,
+ None => panic!("Known leaves cache size must be non-zero"),
+};
#[cfg(test)]
mod tests;
diff --git a/node/service/Cargo.toml b/node/service/Cargo.toml
index a9c9484b6eba..1d2613537814 100644
--- a/node/service/Cargo.toml
+++ b/node/service/Cargo.toml
@@ -73,7 +73,7 @@ kvdb = "0.11.0"
kvdb-rocksdb = { version = "0.15.2", optional = true }
parity-db = { version = "0.3.16", optional = true }
async-trait = "0.1.57"
-lru = "0.7"
+lru = "0.8"
# Polkadot
polkadot-node-core-parachains-inherent = { path = "../core/parachains-inherent" }
diff --git a/node/subsystem-util/Cargo.toml b/node/subsystem-util/Cargo.toml
index a3985a898849..6f120beec7cb 100644
--- a/node/subsystem-util/Cargo.toml
+++ b/node/subsystem-util/Cargo.toml
@@ -17,7 +17,7 @@ thiserror = "1.0.31"
fatality = "0.0.6"
gum = { package = "tracing-gum", path = "../gum" }
derive_more = "0.99.17"
-lru = "0.7.7"
+lru = "0.8.0"
polkadot-node-subsystem = {path = "../subsystem" }
polkadot-node-jaeger = { path = "../jaeger" }
diff --git a/node/subsystem-util/src/runtime/mod.rs b/node/subsystem-util/src/runtime/mod.rs
index fc660a9dc6df..7fcae2c57b09 100644
--- a/node/subsystem-util/src/runtime/mod.rs
+++ b/node/subsystem-util/src/runtime/mod.rs
@@ -16,7 +16,7 @@
//! Convenient interface to runtime information.
-use std::cmp::max;
+use std::num::NonZeroUsize;
use lru::LruCache;
@@ -52,7 +52,7 @@ pub struct Config {
pub keystore: Option,
/// How many sessions should we keep in the cache?
- pub session_cache_lru_size: usize,
+ pub session_cache_lru_size: NonZeroUsize,
}
/// Caching of session info.
@@ -95,7 +95,7 @@ impl Default for Config {
Self {
keystore: None,
// Usually we need to cache the current and the last session.
- session_cache_lru_size: 2,
+ session_cache_lru_size: NonZeroUsize::new(2).expect("2 is larger than 0; qed"),
}
}
}
@@ -109,7 +109,10 @@ impl RuntimeInfo {
/// Create with more elaborate configuration options.
pub fn new_with_config(cfg: Config) -> Self {
Self {
- session_index_cache: LruCache::new(max(10, cfg.session_cache_lru_size)),
+ session_index_cache: LruCache::new(
+ cfg.session_cache_lru_size
+ .max(NonZeroUsize::new(10).expect("10 is larger than 0; qed")),
+ ),
session_info_cache: LruCache::new(cfg.session_cache_lru_size),
keystore: cfg.keystore,
}