Summary

So, in this short chapter, we introduced Rust’s futures to you. You should now have a basic idea of what Rust’s async design looks like, what the language provides for you, and what you need to get elsewhere. You should also have an idea of what a leaf future and a non-leaf future are.

These aspects are important as they’re design decisions built into the language. You know by now that Rust uses stackless coroutines to model asynchronous operations, but since a coroutine doesn’t do anything in and of itself, it’s important to know that the choice of how to schedule and run these coroutines is left up to you.

We’ll get a much better understanding as we start to explain how this all works in detail as we move forward.

Now that we’ve seen a high-level overview of Rust’s futures, we’ll start explaining how they work from the ground up. The next chapter will cover the concept of futures and how they’re...