Timeouts are important for programs that connect to external resources or that otherwise need to bound execution time. Implementing timeouts in Rust is straightforward using channels and select! macro.
Running this program shows the first operation timing out and the second succeeding.
In this Rust version, we use the tokio runtime for asynchronous operations. The select! macro from tokio is used to implement the timeout mechanism, similar to Go’s select statement. We use mpsc channels for communication between threads, and tokio::time::sleep for creating timeouts.
Note that Rust’s approach to concurrency is slightly different from Go’s. Instead of goroutines, we use Rust’s standard threads and async tasks. The tokio::main attribute sets up the tokio runtime for our main function.