https://github.com/karantan/go-concurrency

Examples of concurrent code in Go
https://github.com/karantan/go-concurrency

Last synced: about 2 months ago
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Examples of concurrent code in Go

• Host: GitHub
• URL: https://github.com/karantan/go-concurrency
• Owner: karantan
• License: bsd-3-clause
• Created: 2021-08-10T08:33:41.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2022-03-18T11:48:01.000Z (about 3 years ago)
• Last Synced: 2025-02-13T15:53:54.479Z (4 months ago)
• Language: Go
• Size: 15.6 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# go-concurrency ![gha build](https://github.com/karantan/go-concurrency/workflows/Go/badge.svg)

The goal of this project is to have a collection of concurrent code in Go. Because these

examples are small it's easier to understand the concepts they show. We can also check out

the code and play around with the examples to see how they behave under certain conditions.

Because the examples are small it's also easy to test them, so in this repo, we will also

show how to test concurrent code in Go.

If you have any feedback please consider raising a PR or creating a new issue.

## Usage

To see the output of the code you can take a look at the [GitHub actions](https://github.com/karantan/go-concurrency/actions),

click on a  build and expand the Test section. You will see all the outputs for all

examples.

If you want to play with the code locally you can git clone it and run tests in a debug

mode with Go plugin in Visual Studio Code editor. You will see the logs in the

terminal which will show you how the code runs.

The other way is to select an example function and run it in `main()` function in `main.go`

file and then run the main.go (`go run main.go`).

`main.go` has a production working example of sending ssh commands to different servers.

It's used to execute commands via ssh concurrently on multuple servers at a time, saving

us a lot of time.

To use it simply change the `serverHostnames := []string{"foo", "bar"}`.

In `async-workers/ssh.go` we define the "engine" for running ssh commands. It's basically

the same as the `production.go` version.

## Additional reading

I highly recommend checking out [Learn Go with Test](https://quii.gitbook.io/learn-go-with-tests/)

and reading [Concurrency in Go](https://www.oreilly.com/library/view/concurrency-in-go/9781491941294/) book.