From 47cea329e85fa56909eb30092815b5181fb54b1a Mon Sep 17 00:00:00 2001
From: John Nunley <jtnunley01@gmail.com>
Date: Fri, 9 Sep 2022 07:30:51 -0700
Subject: [PATCH] bench: Add basic benchmarks

Replay of #31 with minor modifications

Signed-off-by: John Nunley <dev@notgull.net>
---
 Cargo.toml       |  8 ++++++++
 benches/bench.rs | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 benches/bench.rs

diff --git a/Cargo.toml b/Cargo.toml
index 471089f..5afe10e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,4 +25,12 @@ portable-atomic-util = { version = "0.1.5", features = ["alloc"], optional = tru
 
 [dev-dependencies]
 futures-lite = "2.3.0"
+criterion = { version = "0.3.4", default-features = false, features = ["cargo_bench_support"] }
 waker-fn = "1"
+
+[[bench]]
+name = "bench"
+harness = false
+
+[lib]
+bench = false
\ No newline at end of file
diff --git a/benches/bench.rs b/benches/bench.rs
new file mode 100644
index 0000000..c120ee9
--- /dev/null
+++ b/benches/bench.rs
@@ -0,0 +1,26 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use event_listener::{Event, Listener};
+
+const COUNT: usize = 8000;
+
+fn bench_events(c: &mut Criterion) {
+    c.bench_function("notify_and_wait", |b| {
+        let ev = Event::new();
+        b.iter(|| {
+            let mut handles = Vec::with_capacity(COUNT);
+
+            for _ in 0..COUNT {
+                handles.push(ev.listen());
+            }
+
+            ev.notify(COUNT);
+
+            for handle in handles {
+                handle.wait();
+            }
+        });
+    });
+}
+
+criterion_group!(benches, bench_events);
+criterion_main!(benches);