ruby 超时和系统命令

Question

我有一个像这样调用系统(bash)命令的 ruby​​ 超时..

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

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

Answer 1

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