rust armanazi thread spawin move capture

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Rust: Spawning Threads and Moving/Capturing Variables

In Rust, you can use the std::thread::spawn function to create a new thread and execute code concurrently. When spawning a thread, you can pass a closure that contains the code you want to run in the new thread.

Here's an example of how you can use spawn:

use std::thread;

fn main() {
    let data = vec![1, 2, 3, 4, 5];

    let handle = thread::spawn(move || {
        // Code to run in the new thread
        for num in data {
            println!("Number: {}", num);
        }
    });

    // Do other work in the main thread

    handle.join().expect("Thread panicked");
}

In this example, we create a vector data and then spawn a new thread using thread::spawn. The closure passed to spawn is executed in the new thread. We use the move keyword before the closure to indicate that we want to move ownership of the data vector into the closure. This allows the closure to access and iterate over the vector.

After spawning the thread, we can continue doing other work in the main thread. To wait for the spawned thread to finish, we call join on the handle returned by spawn. This ensures that the main thread waits for the spawned thread to complete before exiting.

It's important to note that when capturing variables in a closure, Rust enforces some ownership rules to prevent data races. The move keyword is used to transfer ownership of variables into the closure. This ensures that the closure has exclusive access to the captured variables.

I hope this explanation helps you understand how to spawn threads and move/capture variables in Rust!