Blocking thread::sleep inside an async fn
#64
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tmandry
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Sep 16, 2020
I wanted to write an example to help guide people new to asynchronous programming, with fewer external dependencies (as some people requested in #66). The example starts with the [single threaded TCP server from the Rust book](https://doc.rust-lang.org/book/ch20-01-single-threaded.html) and uses async functionality to add concurrency. The example goes through: - some examples of blocking code and how to make them non blocking (should address #64 as well) - spawning tasks vs using combinators to run them concurrently on a single thread - testing code by creating mocks and implementing async read/write traits for the mocks
huangjj27
referenced
this issue
in huangjj27/async-book
Jan 1, 2021
I wanted to write an example to help guide people new to asynchronous programming, with fewer external dependencies (as some people requested in #66). The example starts with the [single threaded TCP server from the Rust book](https://doc.rust-lang.org/book/ch20-01-single-threaded.html) and uses async functionality to add concurrency. The example goes through: - some examples of blocking code and how to make them non blocking (should address #64 as well) - spawning tasks vs using combinators to run them concurrently on a single thread - testing code by creating mocks and implementing async read/write traits for the mocks
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Also I guess in the final tcp example |
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I've seen several async beginners try to use
thread::sleepto try to wrap their brains around async. It's probably one of the most common ways to "see" async. I just want to make sure it's addressed in the async book. (I haven't read it, but at least one of the reddit threads was lifted from the book'sjoinexample).There's also the possibility of a clippy lint, but beginners may not have gotten there yet.
rust-lang/rust-clippy#4377
https://old.reddit.com/r/rust/comments/e1gxf8/not_understanding_asyncawait_properly/
https://old.reddit.com/r/rust/comments/dtp6z7/what_can_i_actually_do_with_the_new_async_fn/
https://old.reddit.com/r/rust/comments/dt0ruy/how_to_await_futures_concurrently/
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