There is one special reference-counted pointer that can be shared between threads that we already mentioned: std::sync::Arc. The main difference from the Rc is that the Arc counts the references with an atomic counter. This means that the kernel will make sure that all updates to the reference count will happen one by one, making it thread-safe. Let's see it with an example:
use std::thread;use std::sync::Arc;fn main() { let my_vec = vec![10, 33, 54]; let pointer = Arc::new(my_vec); let t_pointer = pointer.clone(); let handle = thread::Builder::new() .name("my thread".to_owned()) .spawn(move || { println!("Vector in second thread: {:?}", t_pointer); }) .expect("could not create the thread"); println!("Vector in ...
