rustHow to share closure between threads in Rust

In Rust, closures can be shared between threads by using the Arc type from the std::sync module. This type allows multiple threads to access the same data without the need for explicit locking. To share a closure between threads, it must first be wrapped in an Arc type. Then, the Arc type can be passed to the thread that needs access to the closure. An example of this is shown below:

use std::sync::Arc;

let closure = Arc::new(|| println!("Hello from thread!"));

let handle = std::thread::spawn(move || {
    closure();
});

handle.join().unwrap();

In this example, the closure is first wrapped in an Arc type. Then, the Arc type is passed to the thread that needs access to the closure. The thread can then access the closure by calling the closure() method.

The Arc type is a type of reference-counted pointer, which allows multiple threads to access the same data without the need for explicit locking. This makes it an ideal choice for sharing closures between threads.

Helpful links

• std::sync::Arc
• std::thread
• Closures in Rust

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