Примеры для статьи «Распределенный Ruby»

01_c.rb

# encoding: utf-8

require 'drb'

# DRb.start_service
a = DRbObject.new nil, 'druby://localhost:9000'

p a.alpha(1)
p a.alpha(nil)
p a.alpha("beta")

01_s.rb

# encoding: utf-8

require 'drb'

class Server

  def alpha arg
    puts "Alpha called with #{arg.inspect}"
    [:alpha, arg]
  end

end

DRb.start_service 'druby://localhost:9000', Server.new

DRb.thread.join

02_c.rb

# encoding: utf-8

require 'drb'
require './beta'

DRb.start_service
s = DRbObject.new nil, 'druby://localhost:9000'

a = s.alpha
p a
# p a.dummy
b = s.beta
p b
p b.dummy
c = s.gamma
p c
p c.dummy

02_s.rb

# encoding: utf-8

require 'drb'

class Alpha

  def dummy
    :dummy
  end

end

require './beta'

class Gamma
  include DRbUndumped

  def dummy
    puts 'Dummy called'
    :dummy
  end

end

class Server

  def alpha
    Alpha.new
  end

  def beta
    Beta.new
  end

  def gamma
    Gamma.new
  end

end

DRb.start_service 'druby://localhost:9000', Server.new

DRb.thread.join

03_c.rb

# encoding: utf-8

require 'drb'

DRb.start_service
s = DRbObject.new nil, 'druby://localhost:9000'

s.doSmth do |srv|
  puts '--- client'
  p srv
end

03_s.rb

# encoding: utf-8

require 'drb'

class Server

  include DRbUndumped

  def doSmth &block
    puts '--- server'
    p block
    block.call self
  end

end

DRb.start_service 'druby://localhost:9000', Server.new

DRb.thread.join

04_c.rb

# encoding: utf-8

require 'drb'

DRb.start_service
s = DRbObject.new nil, 'druby://localhost:9000'

s.instance_eval 'undef :instance_eval'
s.instance_eval 'p "client str"'

04_s.rb

# encoding: utf-8

require 'drb'

class Server
end

DRb.start_service 'druby://localhost:9000', Server.new,
    :safe_level => 1

DRb.thread.join

05_c.rb

# encoding: utf-8

require 'drb'

DRb.start_service
s = DRbObject.new nil, 'druby://localhost:9000'

p s.dummy

05_s.rb

# encoding: utf-8

require 'drb'
require 'drb/acl'

class Server
  def dummy
    :dummy
  end
end

acl = ACL.new(%w(
             deny all
             allow localhost
             allow ::1
             allow 192.168.1.*
             ))

DRb.start_service 'druby://localhost:9000', Server.new,
     :tcp_acl => acl

DRb.thread.join

06_c.rb

# encoding: utf-8

require 'drb'

DRb.start_service 'druby://127.0.0.1:9001'
s = DRbObject.new nil, 'druby://127.0.0.1:9000'

p s.dummy

06_s.rb

# encoding: utf-8

require 'drb'

class Server

  def dummy
    :dummy
  end

end

DRb.start_service 'druby://127.0.0.1:9000', Server.new

DRb.thread.join

beta.rb

# encoding: utf-8

class Beta

  def dummy
    :dummy
  end

end