Update to rand 0.9

Cargo.toml

@@ -22,8 +22,8 @@ members = ["examples/*"]
 [dependencies]
 bytes = "1.4"
 indexmap = "2"
-rand = { version = "0.8.5", features = ["small_rng"] }
-rand_distr = "0.4.3"
+rand = "0.9"
+rand_distr = "0.5"
 regex = { version = "1", optional = true }
 scoped-tls = "1.0.1"
 tokio = { version = "1.25.0", features = ["full", "test-util"] }

examples/cluster/Cargo.toml

@@ -9,5 +9,5 @@ turmoil = { path = "../.." }
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 tracing = "0.1"
 tokio = "1"
-rand = "0.8"
+rand = "0.9"
 getrandom = "0.3"

examples/cluster/src/lib.rs

@@ -7,7 +7,7 @@ use std::{
     time::Duration,
 };
 
-use rand::{rngs::SmallRng, seq::SliceRandom, Rng, SeedableRng};
+use rand::{rngs::SmallRng, seq::IndexedRandom, Rng, SeedableRng};
 use tokio::{
     io::{AsyncReadExt, AsyncWriteExt},
     task::JoinSet,
@@ -257,7 +257,7 @@ impl Client {
             attempt += 1;
 
             let backoff = std::cmp::max(init_backoff * 2u64.pow(attempt), 3600);
-            let jitter = self.cluster.rng().gen_range(0..backoff);
+            let jitter = self.cluster.rng().random_range(0..backoff);
 
             tokio::time::sleep(Duration::from_millis(jitter)).await;
         }

src/builder.rs

@@ -181,7 +181,7 @@ impl Builder {
 
         let rng = match self.rng_seed {
             Some(seed) => SmallRng::seed_from_u64(seed),
-            None => SmallRng::from_entropy(),
+            None => SmallRng::from_os_rng(),
         };
 
         let world = World::new(

src/rt.rs

@@ -240,7 +240,7 @@ fn init(config: &mut Config) -> (Runtime, LocalSet) {
 
     #[cfg(tokio_unstable)]
     if let Some(rng) = &mut config.rng {
-        let bytes: [u8; 32] = rand::Rng::gen(rng);
+        let bytes: [u8; 32] = rand::Rng::random(rng);
         let seed = tokio::runtime::RngSeed::from_bytes(&bytes);
         tokio_builder.rng_seed(seed);
     }

src/sim.rs

@@ -91,7 +91,7 @@ impl<'a> Sim<'a> {
             world.register(addr, &nodename, HostTimer::new(self.elapsed), &self.config);
         }
 
-        let seed = self.world.borrow_mut().rng.gen();
+        let seed = self.world.borrow_mut().rng.random();
         let rng = SmallRng::from_seed(seed);
         let config = rt::Config {
             enable_io: self.config.enable_tokio_io,
@@ -131,7 +131,7 @@ impl<'a> Sim<'a> {
             world.register(addr, &nodename, HostTimer::new(self.elapsed), &self.config);
         }
 
-        let seed = self.world.borrow_mut().rng.gen();
+        let seed = self.world.borrow_mut().rng.random();
         let rng = SmallRng::from_seed(seed);
         let config = rt::Config {
             enable_io: self.config.enable_tokio_io,
@@ -793,7 +793,7 @@ mod test {
             })
         };
 
-        let construct_a_first = sim.world.borrow_mut().rng.gen_bool(0.5);
+        let construct_a_first = sim.world.borrow_mut().rng.random_bool(0.5);
         if construct_a_first {
             make_a(&mut sim);
             make_b(&mut sim);

src/top.rs

@@ -507,13 +507,13 @@ impl Link {
     fn rand_partition(&self, global: &config::MessageLoss, rand: &mut dyn RngCore) -> bool {
         let config = self.config.message_loss.as_ref().unwrap_or(global);
         let fail_rate = config.fail_rate;
-        fail_rate > 0.0 && rand.gen_bool(fail_rate)
+        fail_rate > 0.0 && rand.random_bool(fail_rate)
     }
 
     fn rand_repair(&self, global: &config::MessageLoss, rand: &mut dyn RngCore) -> bool {
         let config = self.config.message_loss.as_ref().unwrap_or(global);
         let repair_rate = config.repair_rate;
-        repair_rate > 0.0 && rand.gen_bool(repair_rate)
+        repair_rate > 0.0 && rand.random_bool(repair_rate)
     }
 
     fn delay(&self, global: &config::Latency, rand: &mut dyn RngCore) -> Duration {