小编Saa*_*lik的帖子

在Ruby中,Thread#run和Thread#wakup有什么区别？

RDoc指定不使用Thread#wakeup调用调度程序,但这意味着什么？什么时候使用wakeup vs run？谢谢.

编辑:
我看到Thread#wakup导致线程变为可运行,但是如果在执行Thread#run之前它不会执行它会有什么用处(无论如何唤醒线程)？

有人可以提供一个醒来有意义的例子吗？出于好奇心的缘故=)

如何覆盖多构建 SBT 项目中的子项目设置/任务？例如，这里有两个非常简单的 SBT 项目：

~/projects/backend/build.sbt

name := "backend"

// old version of scala
scalaVersion := "2.9.1"

~/mycode/docker_builder/build.sbt

lazy val backend = RootProject(file("~/projects/backend"))

lazy val root = (project in file(".")).
settings(
  // Doesn't work because sub-project already defines name
  name in backend := "sub-overriden",

  // Doesn't override {backend/}backend/*:scalaVersion since backend already defines scalaVersion in Global config
  scalaVersion in backend := "2.10.1",

  // Does define new setting in sub-project: {backend/}backend/test:scalaVersion (because backend did not define scalaVersion in test config)
  scalaVersion in …