\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /proc/self/root/opt/chef.upgrade/embedded/lib/ruby/2.3.0/drb/

Viewing File: extservm.rb

# frozen_string_literal: false
=begin
 external service manager
        Copyright (c) 2000 Masatoshi SEKI
=end

require 'drb/drb'
require 'thread'
require 'monitor'

module DRb
  class ExtServManager
    include DRbUndumped
    include MonitorMixin

    @@command = {}

    def self.command
      @@command
    end

    def self.command=(cmd)
      @@command = cmd
    end

    def initialize
      super()
      @cond = new_cond
      @servers = {}
      @waiting = []
      @queue = Queue.new
      @thread = invoke_thread
      @uri = nil
    end
    attr_accessor :uri

    def service(name)
      synchronize do
        while true
          server = @servers[name]
          return server if server&.alive?
          invoke_service(name)
          @cond.wait
        end
      end
    end

    def regist(name, ro)
      synchronize do
        @servers[name] = ro
        @cond.signal
      end
      self
    end

    def unregist(name)
      synchronize do
        @servers.delete(name)
      end
    end

    private
    def invoke_thread
      Thread.new do
        while true
          name = @queue.pop
          invoke_service_command(name, @@command[name])
        end
      end
    end

    def invoke_service(name)
      @queue.push(name)
    end

    def invoke_service_command(name, command)
      raise "invalid command. name: #{name}" unless command
      synchronize do
        return if @servers.include?(name)
        @servers[name] = false
      end
      uri = @uri || DRb.uri
      if command.respond_to? :to_ary
        command = command.to_ary + [uri, name]
        pid = spawn(*command)
      else
        pid = spawn("#{command} #{uri} #{name}")
      end
      th = Process.detach(pid)
      th[:drb_service] = name
      th
    end
  end
end