rinda.multicast.3.patch - Ruby master - Ruby Issue Tracking System

Feature #8073 » rinda.multicast.3.patch

Added missing () to match style - drbrain (Eric Hodel), 03/13/2013 06:19 AM

     require 'drb/drb'
     require 'rinda/rinda'
     require 'thread'
     require 'ipaddr'
     module Rinda
-...
         include DRbUndumped
         ##
         # Special renewer for the RingServer to allow shutdown
         class Renewer # :nodoc:
           include DRbUndumped
           ##
           # Set to false to shutdown future requests using this Renewer
           attr_accessor :renew
           def initialize # :nodoc:
             @renew = true
           end
           def renew # :nodoc:
             @renew ? 1 : true
           end
         end
         ##
         # Advertises +ts+ on the UDP broadcast address at +port+.
         def initialize(ts, port=Ring_PORT)
         def initialize(ts, addresses=[Socket::INADDR_ANY], port=Ring_PORT)
           @port = port
           if Integer === addresses then
             addresses, @port = [Socket::INADDR_ANY], addresses
           end
           @renewer = Renewer.new
           @ts = ts
           @soc = UDPSocket.open
           @soc.bind('', port)
           @w_service = write_service
           @r_service = reply_service
           @sockets = addresses.map do |address|
             make_socket(address)
           end
           @w_services = write_services
           @r_service  = reply_service
         end
         ##
         # Creates a thread that picks up UDP packets and passes them to do_write
         # for decoding.
         # Creates a socket at +address+
         def write_service
           Thread.new do
             loop do
               msg = @soc.recv(1024)
               do_write(msg)
         def make_socket(address)
           addrinfo = Addrinfo.udp(address, @port)
           socket = Socket.new(addrinfo.pfamily, addrinfo.socktype,
                               addrinfo.protocol)
           if addrinfo.ipv4_multicast? or addrinfo.ipv6_multicast? then
             if Socket.const_defined?(:SO_REUSEPORT) then
               socket.setsockopt(:SOCKET, :SO_REUSEPORT, true)
             else
               socket.setsockopt(:SOCKET, :SO_REUSEADDR, true)
             end
             if addrinfo.ipv4_multicast? then
               mreq = IPAddr.new(addrinfo.ip_address).hton +
                 IPAddr.new('0.0.0.0').hton
               socket.setsockopt(:IPPROTO_IP, :IP_ADD_MEMBERSHIP, mreq)
             else
               mreq = IPAddr.new(addrinfo.ip_address).hton + [0].pack('I')
               socket.setsockopt(:IPPROTO_IPV6, :IPV6_JOIN_GROUP, mreq)
             end
           end
           socket.bind(addrinfo)
           socket
         end
         ##
         # Creates threads that pick up UDP packets and passes them to do_write for
         # decoding.
         def write_services
           @sockets.map do |s|
             Thread.new(s) do |socket|
               loop do
                 msg = socket.recv(1024)
                 do_write(msg)
               end
             end
           end
         end
-...
         def reply_service
           Thread.new do
             loop do
             thread = Thread.current
             thread[:continue] = true
             while thread[:continue] do
               do_reply
             end
           end
-...
         # address of the local TupleSpace.
         def do_reply
           tuple = @ts.take([:lookup_ring, DRbObject])
           tuple = @ts.take([:lookup_ring, DRbObject], @renewer)
           Thread.new { tuple[1].call(@ts) rescue nil}
         rescue
         end
         ##
         # Shuts down the RingServer
         def shutdown
           @renewer.renew = false
           @w_services.each do |thread|
             thread.kill
           end
           @sockets.each do |socket|
             socket.close
           end
           @r_service[:continue] = false
         end
       end
       ##
-...
         attr_accessor :broadcast_list
         ##
         # Maximum number of hops for sent multicast packets (if using a multicast
         # address in the broadcast list).  The default is 1 (same as UDP
         # broadcast).
         attr_accessor :multicast_hops
         ##
         # The interface index to send IPv6 multicast packets from.
         attr_accessor :multicast_interface
         ##
         # The port that RingFinger will send query packets to.
         attr_accessor :port
-...
           @port = port
           @primary = nil
           @rings = []
           @multicast_hops = 1
           @multicast_interface = 0
         end
         ##
-...
           msg = Marshal.dump([[:lookup_ring, DRbObject.new(block)], timeout])
           @broadcast_list.each do |it|
             soc = UDPSocket.open
             begin
               soc.setsockopt(Socket::SOL_SOCKET, Socket::SO_BROADCAST, true)
               soc.send(msg, 0, it, @port)
             rescue
               nil
             ensure
               soc.close
             end
             send_message(it, msg)
           end
           sleep(timeout)
         end
-...
           @primary
         end
         ##
         # Creates a socket for +address+ with the appropriate multicast options
         # for multicast addresses.
         def make_socket(address) # :nodoc:
           addrinfo = Addrinfo.udp(address, @port)
           soc = Socket.new(addrinfo.pfamily, addrinfo.socktype, addrinfo.protocol)
           if addrinfo.ipv4_multicast? then
             soc.setsockopt(:IPPROTO_IP, :IP_MULTICAST_LOOP, true)
             soc.setsockopt(:IPPROTO_IP, :IP_MULTICAST_TTL,
                            [@multicast_hops].pack('c'))
           elsif addrinfo.ipv6_multicast? then
             soc.setsockopt(:IPPROTO_IPV6, :IPV6_MULTICAST_LOOP, true)
             soc.setsockopt(:IPPROTO_IPV6, :IPV6_MULTICAST_HOPS,
                            [@multicast_hops].pack('I'))
             soc.setsockopt(:IPPROTO_IPV6, :IPV6_MULTICAST_IF,
                            [@multicast_interface].pack('I'))
           else
             soc.setsockopt(:SOL_SOCKET, :SO_BROADCAST, true)
           end
           soc.connect(addrinfo)
           soc
         end
         def send_message(address, message) # :nodoc:
           soc = make_socket(address)
           soc.send(message, 0)
         rescue
           nil
         ensure
           soc.close if soc
         end
       end
       ##

     require 'drb/drb'
     require 'drb/eq'
     require 'rinda/ring'
     require 'rinda/tuplespace'
     require 'singleton'
-...
       @server = DRb.primary_server || DRb.start_service
     end
     class TestRingServer < Test::Unit::TestCase
       def setup
         @port = Rinda::Ring_PORT
         @ts = Rinda::TupleSpace.new
         @rs = Rinda::RingServer.new(@ts, [], @port)
       end
       def teardown
         @rs.shutdown
       end
       def test_make_socket_unicast
         v4 = @rs.make_socket('127.0.0.1')
         assert_equal('127.0.0.1', v4.local_address.ip_address)
         assert_equal(@port,       v4.local_address.ip_port)
       end
       def test_make_socket_ipv4_multicast
         v4mc = @rs.make_socket('239.0.0.1')
         if Socket.const_defined?(:SO_REUSEPORT) then
           assert(v4mc.getsockopt(:SOCKET, :SO_REUSEPORT).bool)
         else
           assert(v4mc.getsockopt(:SOCKET, :SO_REUSEADDR).bool)
         end
         assert_equal('239.0.0.1', v4mc.local_address.ip_address)
         assert_equal(@port,       v4mc.local_address.ip_port)
       end
       def test_make_socket_ipv6_multicast
         begin
           v6mc = @rs.make_socket('ff02::1')
         rescue Errno::EADDRNOTAVAIL
           return # IPv6 address for multicast not available
         end
         if Socket.const_defined?(:SO_REUSEPORT) then
           assert v6mc.getsockopt(:SOCKET, :SO_REUSEPORT).bool
         else
           assert v6mc.getsockopt(:SOCKET, :SO_REUSEADDR).bool
         end
         assert_equal('ff02::1',  v6mc.local_address.ip_address)
         assert_equal(@port, v6mc.local_address.ip_port)
       end
       def test_shutdown
         @rs.shutdown
         assert_nil(@rs.do_reply, 'otherwise should hang forever')
       end
     end
     class TestRingFinger < Test::Unit::TestCase
       def setup
         @rf = Rinda::RingFinger.new
         @rf.multicast_interface = 1
       end
       def test_make_socket_unicast
         v4 = @rf.make_socket('127.0.0.1')
         assert(v4.getsockopt(:SOL_SOCKET, :SO_BROADCAST).bool)
       end
       def test_make_socket_ipv4_multicast
         v4mc = @rf.make_socket('239.0.0.1')
         assert_equal(1, v4mc.getsockopt(:IPPROTO_IP, :IP_MULTICAST_LOOP).int)
         assert_equal(1, v4mc.getsockopt(:IPPROTO_IP, :IP_MULTICAST_TTL).int)
       end
       def test_make_socket_ipv6_multicast
         v6mc = @rf.make_socket('ff02::1')
         assert_equal(1, v6mc.getsockopt(:IPPROTO_IPV6, :IPV6_MULTICAST_LOOP).int)
         assert_equal(1, v6mc.getsockopt(:IPPROTO_IPV6, :IPV6_MULTICAST_HOPS).int)
       end
       def test_make_socket_multicast_hops
         @rf.multicast_hops = 2
         v4mc = @rf.make_socket('239.0.0.1')
         assert_equal(2, v4mc.getsockopt(:IPPROTO_IP, :IP_MULTICAST_TTL).int)
         v6mc = @rf.make_socket('ff02::1')
         assert_equal(2, v6mc.getsockopt(:IPPROTO_IPV6, :IPV6_MULTICAST_HOPS).int)
       end
     end
     end

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Feature #8073 » rinda.multicast.3.patch