摘录


In Go servers, each incoming request is handled in its own goroutine. Request handlers often start additional goroutines to access backends such as databases and RPC services. The set of goroutines working on a request typically needs access to request-specific values such as the identity of the end user, authorization tokens, and the request's deadline. When a request is canceled or times out, all the goroutines working on that request should exit quickly so the system can reclaim any resources they are using.

At Google, we developed a context package that makes it easy to pass request-scoped values, cancelation signals, and deadlines across API boundaries to all the goroutines involved in handling a request. The package is publicly available as context. This article describes how to use the package and provides a complete working example.

点评

不会用context就不懂go语言

原文

点击这里查看原文

其它

本帖内容由21QA云收藏工具自动生成,欢迎使用。

系统消息 若觉得内容不错,请点击左上角的"赞"图标,以优化网站的内容呈现。 另外,请及时验证注册邮箱,否则收不到21QA发出的红包。 官方Q群:250203055

asked 12 Feb, 09:46

%E8%B7%AF%E4%BA%BA%E7%94%B2's gravatar image

路人甲
131566603718

Be the first one to answer this question!
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link: [text](http://url.com/ "title")
  • image: ![alt](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×864
×19

question asked: 12 Feb, 09:46

question was seen: 147 times

last updated: 12 Feb, 09:46

powered by O*S*Q*A

粤ICP备14040061号-1