Data Race - Rust 2

use std::{
    sync::{Arc, Mutex},
    thread,
};

#[derive(Debug)]
struct Data {
    value: u32,
}

fn main() -> thread::Result<()> {
let data = Data { value: 0 };
let arc_mutex = Arc::new(Mutex::new(data));
let arc_mutex_0 = arc_mutex.clone();
let arc_mutex_1 = arc_mutex.clone();

let work_0 = move || {
    (0..50000).for_each(|_| {
        if let Ok(mut data) = arc_mutex_0.lock() {
            data.value += 1;
        }
    });
};
let work_1 = move || {
    (0..50000).for_each(|_| {
        if let Ok(mut data) = arc_mutex_1.lock() {
            data.value += 1;
        }
    })
};

let thread_0 = thread::spawn(work_0);
let thread_1 = thread::spawn(work_1);

thread_0.join()?;
thread_1.join()?;

if let Ok(Ok(data)) = Arc::try_unwrap(arc_mutex).map(Mutex::into_inner) {
    println!("value: {}", data.value);
}

Ok(())
}

# build and execute
(
  mkdir -p /tmp/target/rust
  rustc \
    doc/src/learning_material/why_rust/constraints/data_race_2.rs \
    -o /tmp/target/rust/data_race_2
  /tmp/target/rust/data_race_2
)