ruby 超时和系统命令 [英] ruby timeouts and system commands

问题描述

我有一个 ruby​​ 超时，它调用这样的系统 (bash) 命令..

I have a ruby timeout that calls a system (bash) command like this..

Timeout::timeout(10) {
  `my_bash_command -c12 -o text.txt`
}

但我认为即使ruby线程被中断，实际命令仍然在后台运行..正常吗?我怎样才能杀死它?

but I think that even if the ruby thread is interrupted, the actual command keeps running in the background.. is it normal? How can I kill it?

推荐答案

我认为你必须手动kill它:

require 'timeout'

puts 'starting process'
pid = Process.spawn('sleep 20')
begin
  Timeout.timeout(5) do
    puts 'waiting for the process to end'
    Process.wait(pid)
    puts 'process finished in time'
  end
rescue Timeout::Error
  puts 'process not finished in time, killing it'
  Process.kill('TERM', pid)
end

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