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One of the big sources of difficulty on the async ecosystem is spawning tasks. Because there is no API in std for spawning tasks, library authors who want their library to spawn tasks have to depend on one of the multiple executors in the e...
Today I’m releasing a library called iou. This library provides idiomatic Rust bindings to the C library called liburing, which itself is a higher interface for interacting with the io_uring Linux kernel interface. Here are the answers to s...
The first version of async/await syntax is in the beta release, set to be shipped to stable in 1.39 on November 7, next month. There are a wide variety of additional features we could add to async/await in Rust beyond what we’re shipping in...
Many people who use Rust for a bit - especially those who like the language but do not fall in love with it - feel a sense that there must be a smaller, simpler variation on the same theme which would maybe be a little less powerful, but wo...
In my previous post I said that the lang team would be making our final decision about the syntax of the await operator in the May 23 meeting. That was last Thursday, and we did reach a decision. In brief, we decided to go forward with the...
The idea of a zero cost abstraction is very important to certain programming languages, like Rust and C++, which intend to enable users to write programs with excellent performance profiles with relatively little effort. Since this idea is...
This is an announcement regarding the resolution of the syntax for the await operator in Rust. This is one of the last major unresolved questions blocking the stabilization of the async/await feature, a feature which will enable many more p...
The biggest unresolved question regarding the async/await syntax is the final syntax for the await operator. There’s been an enormous amount of discussion on this question so far; a summary of the present status of that discussion and the p...
This is my second post on the design of generators. In the first post, I outlined what an MVP of the feature would look like. In this post, I want to take a look at the first design issue for the feature: how it integrates with the ? operat...
We’re still not finished with the design of async/await, but it’s already become clear that it’s time to get the next phases of the feature into the pipeline. There are two extensions to the minimal async/await feature we’ve currently got t...
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"Just because Rust allows you to write super cool non-allocating zero-copy algorithms safely, doesn’t mean every algorithm you write should be super ..."