Ruby 循环在线程中失败

发布于 2024-08-03 10:21:32 字数 608 浏览 4 评论 0原文

我在 Ruby 中有一个线程。它运行一个循环。当该循环达到睡眠（n）时，它会停止并且永远不会醒来。如果我在没有 sleep(n) 的情况下运行循环，它将作为无限循环运行。

代码中发生了什么来阻止线程按预期运行？我该如何修复它？

class NewObject
    def initialize
        @a_local_var = 'somaText'
    end

    def my_funk(a_word)
        t = Thread.new(a_word) do |args|
            until false do
                puts a_word
                puts @a_local_var
                sleep 5 #This invokes the Fail
            end
        end
    end
end

if __FILE__ == $0
    s = NewObject.new()
    s.my_funk('theWord')
    d = gets
end

我的平台是Windows XP SP3
我安装的ruby版本是1.8.6

原文

I have a thread in Ruby. It runs a loop. When that loop reaches a sleep(n) it halts and never wakes up. If I run the loop with out sleep(n) it runs as a infinite loop.

Whats going on in the code to stop the thread from running as expected?
How do i fix it?

class NewObject
    def initialize
        @a_local_var = 'somaText'
    end

    def my_funk(a_word)
        t = Thread.new(a_word) do |args|
            until false do
                puts a_word
                puts @a_local_var
                sleep 5 #This invokes the Fail
            end
        end
    end
end

if __FILE__ == $0
    s = NewObject.new()
    s.my_funk('theWord')
    d = gets
end

My platform is Windows XP SP3
The version of ruby I have installed is 1.8.6

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初见 2024-08-10 10:21:32

你缺少一个加入。

class NewObject
  def initialize
    @a_local_var = 'somaText'
  end

  def my_funk(a_word)
    t = Thread.new(a_word) do |args|
      until false do
        puts a_word
        puts @a_local_var
        sleep 5 
      end
    end
    t.join # allow this thread to finish before finishing main thread
  end
end

if __FILE__ == $0
  s = NewObject.new()
  s.my_funk('theWord')
  d = gets # now we never get here
end

You're missing a join.

class NewObject
  def initialize
    @a_local_var = 'somaText'
  end

  def my_funk(a_word)
    t = Thread.new(a_word) do |args|
      until false do
        puts a_word
        puts @a_local_var
        sleep 5 
      end
    end
    t.join # allow this thread to finish before finishing main thread
  end
end

if __FILE__ == $0
  s = NewObject.new()
  s.my_funk('theWord')
  d = gets # now we never get here
end

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