build(deps): bach and rand updates

quic/s2n-quic-platform/Cargo.toml

@@ -20,7 +20,7 @@ tokio-runtime = ["futures", "tokio"]
 xdp = ["s2n-quic-xdp"]
 
 [dependencies]
-bach = { version = "0.0.6", optional = true }
+bach = { version = "0.0.10", optional = true }
 bolero-generator = { version = "0.13", default-features = false, optional = true }
 cfg-if = "1"
 futures = { version = "0.3", default-features = false, features = ["async-await"], optional = true }
@@ -36,7 +36,7 @@ turmoil = { version = "0.6.0", optional = true }
 libc = "0.2"
 
 [dev-dependencies]
-bach = { version = "0.0.6" }
+bach = { version = "0.0.10" }
 bolero = "0.13"
 bolero-generator = "0.13"
 futures = { version = "0.3", features = ["std"] }

quic/s2n-quic-platform/src/io/testing.rs

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-use bach::time::scheduler;
+use bach::{environment::Macrostep, time::scheduler};
 use core::task::Poll;
 use s2n_quic_core::{
     endpoint::Endpoint, inet::SocketAddress, io::event_loop::EventLoop, path::mtu,
@@ -42,7 +42,7 @@ pub mod rand {
 
         #[inline]
         fn gen_bool(&mut self) -> bool {
-            gen()
+            produce::<bool>().any()
         }
 
         #[inline]
@@ -52,7 +52,7 @@ pub mod rand {
 
         #[inline]
         fn gen_range(&mut self, range: core::ops::Range<u64>) -> u64 {
-            gen_range(range)
+            range.any()
         }
     }
 }
@@ -90,7 +90,7 @@ impl<N: Network> Executor<N> {
     }
 
     pub fn enter<F: FnOnce() -> O, O>(&mut self, f: F) -> O {
-        self.executor.environment().enter(f)
+        bach::environment::Environment::enter(self.executor.environment(), f)
     }
 
     pub fn run(&mut self) {
@@ -100,7 +100,7 @@ impl<N: Network> Executor<N> {
     pub fn close(&mut self) {
         // close the environment, which notifies all of the tasks that we're shutting down
         self.executor.environment().close(|| {});
-        while self.executor.macrostep() > 0 {}
+        while self.executor.macrostep().tasks > 0 {}
 
         // then close the actual executor
         self.executor.close()
@@ -123,10 +123,6 @@ struct Env<N> {
 }
 
 impl<N> Env<N> {
-    fn enter<F: FnOnce() -> O, O>(&self, f: F) -> O {
-        self.handle.enter(|| self.time.enter(|| self.rand.enter(f)))
-    }
-
     fn close<F: FnOnce()>(&mut self, f: F) {
         let handle = &mut self.handle;
         let rand = &mut self.rand;
@@ -144,11 +140,15 @@ impl<N> Env<N> {
     }
 }
 
-impl<N: Network> bach::executor::Environment for Env<N> {
-    fn run<Tasks, F>(&mut self, tasks: Tasks) -> Poll<()>
+impl<N: Network> bach::environment::Environment for Env<N> {
+    fn enter<F: FnOnce() -> O, O>(&mut self, f: F) -> O {
+        self.handle.enter(|| self.time.enter(|| self.rand.enter(f)))
+    }
+
+    fn run<Tasks, R>(&mut self, tasks: Tasks) -> Poll<()>
     where
-        Tasks: Iterator<Item = F> + Send,
-        F: 'static + FnOnce() -> Poll<()> + Send,
+        Tasks: IntoIterator<Item = R>,
+        R: bach::environment::Runnable,
     {
         let mut is_ready = true;
 
@@ -165,7 +165,7 @@ impl<N: Network> bach::executor::Environment for Env<N> {
             time.enter(|| {
                 rand.enter(|| {
                     for task in tasks {
-                        is_ready &= task().is_ready();
+                        is_ready &= task.run().is_ready();
                     }
                     network.execute(buffers);
                 })
@@ -179,11 +179,11 @@ impl<N: Network> bach::executor::Environment for Env<N> {
         }
     }
 
-    fn on_macrostep(&mut self, count: usize) {
+    fn on_macrostep(&mut self, macrostep: Macrostep) -> Macrostep {
         // only advance time after a stall
-        if count > 0 {
+        if macrostep.tasks > 0 {
             self.stalled_iterations = 0;
-            return;
+            return macrostep;
         }
 
         self.stalled_iterations += 1;
@@ -206,6 +206,7 @@ impl<N: Network> bach::executor::Environment for Env<N> {
                 break;
             }
         }
+        macrostep
     }
 
     fn close<F>(&mut self, close: F)

quic/s2n-quic-platform/src/io/testing/model.rs

@@ -1,7 +1,10 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-use super::network::{Buffers, Network, Packet};
+use super::{
+    network::{Buffers, Network, Packet},
+    rand::Any,
+};
 use core::time::Duration;
 use s2n_quic_core::{havoc, path::MaxMtu};
 use std::{
@@ -241,7 +244,7 @@ impl Network for Model {
         #[inline]
         fn gen_rate(rate: u64) -> bool {
             // ensure the rate isn't 0 before actually generating a random number
-            rate > 0 && super::rand::gen::<u64>() < rate
+            rate > 0 && super::rand::produce::<u64>().any() < rate
         }
 
         let mut transmit = |packet: Cow<Packet>| {
@@ -360,7 +363,7 @@ impl Network for Model {
 }
 
 fn gen_jitter(max_jitter: Duration) -> Duration {
-    let micros = super::rand::gen_range(0..max_jitter.as_micros() as u64);
+    let micros = Any::any(&(0..max_jitter.as_micros() as u64));
     let micros = micros as f64;
     // even though we're generated micros, we round to the nearest millisecond
     // so packets can be grouped together

quic/s2n-quic-platform/src/io/testing/time.rs

@@ -11,7 +11,7 @@ use core::{
 use s2n_quic_core::time::{clock, Timestamp};
 
 pub fn now() -> Timestamp {
-    unsafe { Timestamp::from_duration(time::now()) }
+    unsafe { Timestamp::from_duration(time::Instant::now().elapsed_since_start()) }
 }
 
 pub fn delay(duration: Duration) -> Timer {

quic/s2n-quic-sim/Cargo.toml

@@ -13,11 +13,12 @@ publish = false
 [dependencies]
 anyhow = "1"
 bytes = "1"
+bolero-generator = "0.13.0"
 humantime = "2"
 indicatif = { version = "0.17", features = ["rayon"] }
 once_cell = "1"
 prost = "0.13"
-rand = "0.8"
+rand = "0.9"
 rayon = "1"
 s2n-quic = { path = "../s2n-quic", features = ["unstable-provider-io-testing", "provider-event-tracing"] }
 s2n-quic-core = { path = "../s2n-quic-core", features = ["testing"] }

quic/s2n-quic-sim/src/run.rs

@@ -108,7 +108,7 @@ impl Run {
                 .while_some()
                 .for_each(|_| {
                     use ::rand::prelude::*;
-                    let seed = thread_rng().gen();
+                    let seed = rand::rng().random();
                     test(seed);
                 });
         } else {

quic/s2n-quic-sim/src/run/endpoint.rs

@@ -60,7 +60,8 @@ pub fn client(
         total_delay += delay.gen_duration();
 
         // pick a random server to connect to
-        let server_addr = *rand::one_of(servers);
+        let server_addr_idx = rand::Any::any(&(0..servers.len()));
+        let server_addr = servers[server_addr_idx];
         let delay = total_delay;
 
         let client = client.clone();

quic/s2n-quic-sim/src/run/range.rs

@@ -47,14 +47,14 @@ impl<T: PartialEq + fmt::Display> fmt::Display for CliRange<T> {
 
 impl<T> CliRange<T>
 where
-    T: Copy + PartialOrd + ::rand::distributions::uniform::SampleUniform,
+    T: Copy + PartialOrd + ::bolero_generator::bounded::BoundedValue,
 {
     pub fn gen(&self) -> T {
         if self.start == self.end {
             return self.start;
         }
 
-        rand::gen_range(self.start..self.end)
+        rand::Any::any(&(self.start..self.end))
     }
 }
 
@@ -67,7 +67,7 @@ impl CliRange<humantime::Duration> {
             return Duration::from_nanos(start as _);
         }
 
-        let nanos = rand::gen_range(start..end);
+        let nanos = rand::Any::any(&(start..end));
         Duration::from_nanos(nanos as _)
     }
 }

quic/s2n-quic/src/tests/issue_1427.rs

@@ -1,7 +1,7 @@
 // Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 // SPDX-License-Identifier: Apache-2.0
 
-use super::*;
+use super::{rand::Any, *};
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
 
 /// Ensures tokio `AsyncRead` implementation functions properly
@@ -31,7 +31,7 @@ fn tokio_read_exact_test() {
                 while read_len < LEN {
                     let max_len = buf.len().min(LEN - read_len);
                     // generate a random amount of bytes to read
-                    let len = rand::gen_range(1..=max_len);
+                    let len = Any::any(&(1..=max_len));
 
                     let buf = &mut buf[0..len];
                     recv.read_exact(buf).await.unwrap();