Thread#run和Thread#wakeup之间的区别? [英] Difference between Thread#run and Thread#wakeup?

问题描述

在Ruby中， Thread#run 有什么区别和线程#wakup ?

In Ruby, what is the difference between Thread#run and Thread#wakup?

RDoc指定不使用Thread#wakeup调用 scheduler ，但这是什么意思?何时使用唤醒与 run 的示例?谢谢.

The RDoc specifies that scheduler is not invoked with Thread#wakeup, but what does that mean? An example of when to use wakeup vs run? Thanks.

我看到 Thread#wakup 导致线程变得可运行，但是如果要在 Thread#运行(是否仍会唤醒线程)被执行?

I see that Thread#wakup causes the thread to become runnable, but what use is it if the it's not going to execute until Thread#run is executed (which wakes up the thread anyway)?

有人可以提供一个示例，其中唤醒会产生有意义的作用吗?出于好奇的缘故=)

Could someone please provide an example where wakeup does something meaningful? For curiosity's sake =)

推荐答案

以下是一个说明其含义的示例(来自

Here is an example to illustrate what it means (Code example from here):

Thread.wakeup

thread = Thread.new do 
  Thread.stop
  puts "Inside the thread block"
end

$ thread
=> #<Thread:0x100394008 sleep> 

以上输出表明由于停止命令，新创建的线程处于睡眠状态.

The above output indicates that the newly created thread is asleep because of the stop command.

$ thread.wakeup
=> #<Thread:0x100394008 run>

此输出表明线程不再处于休眠状态，并且可以运行.

This output indicates that the thread is not sleeping any more, and can run.

$ thread.run
Inside the thread block
=> #<Thread:0x1005d9930 sleep>   

现在，线程继续执行并打印出字符串.

Now the thread continues the execution and prints out the string.

$ thread.run
ThreadError: killed thread

Thread.run

thread = Thread.new do 
  Thread.stop
  puts "Inside the thread block"
end

$ thread
=> #<Thread:0x100394008 sleep> 

$ thread.run
Inside the thread block
=> #<Thread:0x1005d9930 sleep>   

线程不仅会唤醒，还会继续执行，并打印出字符串.

The thread not only wakes up but also continues the execution and prints out the string.

$ thread.run
ThreadError: killed thread

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