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olehmisar
2020-04-08 13:53:35 +03:00
parent a3ac3071df
commit 8dfc2f8ed3
7 changed files with 175 additions and 175 deletions
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src/1_futures_in_rust.md
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@@ -91,7 +91,7 @@ Rust is different from these languages in the sense that Rust doesn't come with
a runtime for handling concurrency, so you need to use a library which provide
this for you.
Quite a bit of complexity attributed to `Futures` is actually complexity rooted
Quite a bit of complexity attributed to `Future`s is actually complexity rooted
in runtimes. Creating an efficient runtime is hard.
Learning how to use one correctly requires quite a bit of effort as well, but
@@ -114,7 +114,7 @@ on the `Future`.
You can think of the former as the reactor's job, and the latter as the
executors job. These two parts of a runtime interacts using the `Waker` type.
The two most popular runtimes for `Futures` as of writing this is:
The two most popular runtimes for `Future`s as of writing this is:
- [async-std](https://github.com/async-rs/async-std)
- [Tokio](https://github.com/tokio-rs/tokio)
@@ -138,17 +138,17 @@ take a look at this async block using pseudo-rust as example:
```rust, ignore
let non_leaf = async {
let mut stream = TcpStream::connect("127.0.0.1:3000").await.unwrap(); // <-- yield
// request a large dataset
let result = stream.write(get_dataset_request).await.unwrap(); // <-- yield
// wait for the dataset
let mut response = vec![];
stream.read(&mut response).await.unwrap(); // <-- yield
// do some CPU-intensive analysis on the dataset
let report = analyzer::analyze_data(response).unwrap();
// send the results back
stream.write(report).await.unwrap(); // <-- yield
};
@@ -189,16 +189,16 @@ can either perform CPU-intensive tasks or "blocking" tasks which is not supporte
by the runtime.
Now, armed with this knowledge you are already on a good way for understanding
Futures, but we're not gonna stop yet, there is lots of details to cover.
Futures, but we're not gonna stop yet, there is lots of details to cover.
Take a break or a cup of coffe and get ready as we go for a deep dive in the next chapters.
## Bonus section
If you find the concepts of concurrency and async programming confusing in
general, I know where you're coming from and I have written some resources to
try to give a high level overview that will make it easier to learn Rusts
`Futures` afterwards:
general, I know where you're coming from and I have written some resources to
try to give a high level overview that will make it easier to learn Rusts
`Future`s afterwards:
* [Async Basics - The difference between concurrency and parallelism](https://cfsamson.github.io/book-exploring-async-basics/1_concurrent_vs_parallel.html)
* [Async Basics - Async history](https://cfsamson.github.io/book-exploring-async-basics/2_async_history.html)
@@ -206,7 +206,7 @@ try to give a high level overview that will make it easier to learn Rusts
* [Async Basics - Epoll, Kqueue and IOCP](https://cfsamson.github.io/book-exploring-async-basics/6_epoll_kqueue_iocp.html)
Learning these concepts by studying futures is making it much harder than
it needs to be, so go on and read these chapters if you feel a bit unsure.
it needs to be, so go on and read these chapters if you feel a bit unsure.
I'll be right here when you're back.
@@ -215,4 +215,4 @@ However, if you feel that you have the basics covered, then let's get moving!
[async_std]: https://github.com/async-rs/async-std
[tokio]: https://github.com/tokio-rs/tokio
[compat_info]: https://rust-lang.github.io/futures-rs/blog/2019/04/18/compatibility-layer.html
[futures_rs]: https://github.com/rust-lang/futures-rs
[futures_rs]: https://github.com/rust-lang/futures-rs