advancedConcurrency
Arc and Mutex
Share state between threads safely with Arc<Mutex<T>>.
Arc and Mutex
Share state between threads safely with Arc
Difficulty
Advanced
Code
rust
use std::sync::{Arc, Mutex};
use std::thread;
fn main() {
let counter = Arc::new(Mutex::new(0));
let mut handles = vec![];
for _ in 0..10 {
let counter = Arc::clone(&counter);
let handle = thread::spawn(move || {
let mut num = counter.lock().unwrap();
*num += 1;
});
handles.push(handle);
}
for handle in handles {
handle.join().unwrap();
}
println!("result: {}", *counter.lock().unwrap());
}Explanation
Arc enables shared mutable state across threads.
Key Concepts
- Read the code carefully and understand the data flow
- Try modifying the example to see how it changes behavior
- Run this code in the Rust Playground
Related Topics
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