Example with list

1 files changed, 53 insertions, 0 deletions

diff --git a/examples/list.rs b/examples/list.rs
new file mode 100644
index 0000000..904d9f2
--- /dev/null
+++ b/examples/list.rs
@@ -0,0 +1,53 @@
+use std::thread;
+
+use happylock::mutex::Mutex;
+use happylock::{LockGuard, ThreadKey};
+
+const N: usize = 10;
+
+static DATA: [Mutex<usize>; 6] = [
+	Mutex::new(0),
+	Mutex::new(1),
+	Mutex::new(2),
+	Mutex::new(3),
+	Mutex::new(4),
+	Mutex::new(5),
+];
+
+static SEED: Mutex<u32> = Mutex::new(42);
+
+fn random(key: ThreadKey) -> (ThreadKey, usize) {
+	let mut seed = SEED.lock(key);
+	let x = *seed;
+	let x = x ^ (x << 13);
+	let x = x ^ (x >> 17);
+	let x = x ^ (x << 5);
+	*seed = x;
+	(Mutex::unlock(seed), x as usize)
+}
+
+fn main() {
+	for _ in 0..N {
+		thread::spawn(move || {
+			let mut key = ThreadKey::lock().unwrap();
+			let mut rand;
+			let mut data = Vec::new();
+			for _ in 0..3 {
+				(key, rand) = random(key);
+				data.push(&DATA[rand % 6]);
+			}
+
+			let data = [data[0], data[1], data[2]];
+			let mut guard = LockGuard::lock(&data, key);
+			*guard[0] += *guard[1];
+			*guard[1] += *guard[2];
+			*guard[2] += *guard[0];
+		});
+	}
+
+	let key = ThreadKey::lock().unwrap();
+	let data = LockGuard::lock(&DATA, key);
+	for val in &*data {
+		println!("{}", **val);
+	}
+}