Damien Neil (@misago.org)

I’m tremendously excited about the synctest package. There’s usually a tension between making async code idiomatic or testable. Synctest makes the idiomatic code testable. #golang go.dev/blog/synctest

go.devTesting concurrent code with testing/synctest - The Go Programming LanguageGo 1.24 contains an experimental package to aid in testing concurrent code.

Damien Neil

@misago.org

19 Dec 2024

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

13/20

14/20

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

11/20

12/20

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

9/20

10/20

Damien Neil reposted

Laurie J

@lmjake.bsky.social

26 Dec 2024

Christmas cats for @misago.org

Damien Neil

@misago.org

19 Dec 2024

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

7/20

8/20

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

5/20

6/20

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

3/20

4/20

20 books that have stayed with you or influenced you. One book per day. No explanations, no reviews, just covers.

Shaenon K. Garrity@shaenon.bsky.social

Choose 20 books that have stayed with you or influenced you. One book per day for 20 days, in no particular order. No explanations, no reviews, just covers.

2/20

And now, a cat.

The Go protocol buffer Opaque API is released! go.dev/blog/protobu... This is a new, optional version of the generated code API which hides the internal implementation details. It’s been in use inside Google for years now. Congrats to the Go protobuf maintainers on the open source release! #golang

go.devGo Protobuf: The new Opaque API - The Go Programming LanguageWe are adding a new generated code API to Go Protobuf.

Damien Neil reposted

Michael Pratt

@prattmic.com

13 Dec 2024

I just closed go.dev/issue/54766 as fixed! Please try out the RC! 🇨🇭┳┳

go.devruntime: use SwissTable · Issue #54766 · golang/goAbstract From ByteDance Programming Language Team We suggest using SwissTable in the runtime to replace the original implementation of the hashmap. SwissTable is now used in abseil and rust by defa...

Go@golang.org

🎊 Go 1.24 Release Candidate 1 is released! 🏃‍♀️ Run it in dev! Run it in prod! File bugs! go.dev/issue/new 🔈 Announcement: groups.google.com/g/golang-ann... 📦 Download: go.dev/dl/#go1.24rc1

Yes?

Cocoa.

A silly Go channel trick: The idea behind the gate type (pkg.go.dev/github.com/n...) is to use two channels to store one bit of state. If one channel contains a value the bit is set; if the other it is not.

pkg.go.devgate package - github.com/neild/gate - Go Packages

So: Four channels! Readable/writeable/neither/both. At most one channel contains a value. To wait for readability, you select on readable/both, and so on. Two bits, four states, four chans.

Damien Neil

@misago.org

27 Nov 2024

This technique scales poorly to more bits. :)

Damien Neil

@misago.org

27 Nov 2024

pkg.go.devgate package - github.com/neild/gate - Go Packages

Damien Neil

@misago.org

27 Nov 2024

In an in-memory net.Conn implementation, I found that I needed two bits of state: Readable or writable. Reads block until the conn buffer contains data, writes block until there’s space in the buffer. (This is not a Conn, this is one direction of traffic on a pair of Conns.)