multicast and windows

[Regis Siger]

report for trying IP multicast with ruby 1.8 / iron ruby / jruby :

sending datagramme :
ok for all
receiving datagramme :
ok for iron ruby, no reception for ruby 1.8, error with jruby

test sending datagramme :
> ruby sim.rb s 3302 229.1.1.1 5000

test receiving datagramme :
> ruby sim.rb r 3302 229.1.1.1 5000

NOTA

IRON RUBY:
Socket::IP_ADD_MEMBERSHIP = 12 must be done
Socket::IP_MULTICAST_LOOP, Socket::IP_MULTICAST_TTL not known

JRUBY : "can't convert Fixnum into String" on socket.bind

ruby 1.8.6 (2008-08-11 patchlevel 287) [i386-mswin32]
IronRuby 0.9.2.0 on .NET 2.0.0.0
jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2009-11-02 69fbfa3)
(Java HotSpot(TM) Client VM 1.6.0_16) [x86-java]

Attachments:
http://www.ruby-forum.com/attachment/4309/sim.rb

--
Posted via http://www.ruby-forum.com/.

[Roger Pack]

Regis Siger wrote:
> report for trying IP multicast with ruby 1.8 / iron ruby / jruby :

No code?
Were any VM's successful?
Did you try it with BasicSocket.do_not_reverse_lookup = true?
-r

[Regis Siger]

Roger Pack wrote:
> Regis Siger wrote:
>> report for trying IP multicast with ruby 1.8 / iron ruby / jruby :
>
> No code?
> Were any VM's successful?
> Did you try it with BasicSocket.do_not_reverse_lookup = true?
> -r

code is in sim.rb, attachment of first post

[Roger Pack]

> code is in sim.rb, attachment of first post

Have you tried it with linux at all? how does it work there?
-r

[Roger Pack]

> Were any VM's successful?
> Did you try it with BasicSocket.do_not_reverse_lookup = true?

Did you try 1.9.1 on doze?

[Regis Aubarede]

Roger Pack wrote:
>
>> Were any VM's successful?
>> Did you try it with BasicSocket.do_not_reverse_lookup = true?

yes

>Have you tried it with linux at all? how does it work there?

now, yes

>
> Did you try 1.9.1 on doze?

now, yes
> -r

Some other test :
Linux : ok with ruby 1.8 (ubuntu 9.10 and "route add 224.0.0.0..." )
windows : ruby 1.9.1 : Nok (no receive)
(TCP/IP on ruby 1.9/windows is realy broken !)
jruby 1.4.0 : error on socket.bind

by

==========================================================
here i my test code (working file in attachement) :

Thread.abort_on_exception = true
Socket.do_not_reverse_lookup = true

class MulticastSender
def initialize(ip,port)
@ip,@port=[ip,port]
@addr = IPAddr.new(@ip).hton + IPAddr.new("0.0.0.0").hton
@version=0
puts "Emitter mutlticast in " + ip + "/" + port.to_s + " ..."
Thread.new { loop { run ; sleep(3) } }
end

def run
@version+=1
@version = @version % 1000
socket = UDPSocket.open
#socket.setsockopt(Socket::IPPROTO_IP, Socket::IP_TTL, [10].pack('i'))
max=1+rand(3)
0.upto(max) { |no|
mess = Time.now.to_f.to_s
puts "sending mc " + mess
socket.send(mess, 0, @ip , @port)
sleep(0.01)
}
ensure
socket.close rescue puts $!.to_s
end
end

class MulticastReceiver
def initialize(ip,port)
@sip,@port=[ip,port]
@version=0
host = IPAddr.new(@sip).hton + IPAddr.new("0.0.0.0").hton
sock = UDPSocket.new
sock.bind(Socket::INADDR_ANY, port) if isWindows()

sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_ADD_MEMBERSHIP, host)
sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_MULTICAST_LOOP,
"\000") if defined?(Socket::IP_MULTICAST_LOOP)
sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_MULTICAST_TTL, 3)
if defined?(Socket::IP_MULTICAST_TTL)
sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_TTL, 3)
if defined?(Socket::IP_TTL)

sock.bind(Socket::INADDR_ANY, port) unless isWindows()

puts "Wait receiving mutlticast in " + @sip + "/" + port.to_s + " ..."
Thread.new { loop { run(sock) } }
end
def run(sock)
msg, (family, port, hostname, address) = sock.recvfrom(1024)
d=Time.now
puts "MSG: from #{address} (#{hostname})/#{family} len #{msg.size} ==
#{msg.inspect }"
end
end

Attachments:
http://www.ruby-forum.com/attachment/4310/test_mc.rb

[Roger Pack]

> Some other test :
> Linux : ok with ruby 1.8 (ubuntu 9.10 and "route add 224.0.0.0..." )

I assume Linux 1.9.x works, too, then?

> windows : ruby 1.9.1 : Nok (no receive)
> (TCP/IP on ruby 1.9/windows is realy broken !)

What else is broken?
You can report bugs on redmine.ruby-lang.org

> jruby 1.4.0 : error on socket.bind

I reported a bug to them.

-r

[Roger Pack]

> Some other test :
> Linux : ok with ruby 1.8 (ubuntu 9.10 and "route add 224.0.0.0..." )
> windows : ruby 1.9.1 : Nok (no receive)
> (TCP/IP on ruby 1.9/windows is realy broken !)
> jruby 1.4.0 : error on socket.bind

works for me with all versions of ruby on windows... (windows 7).

[Charles Oliver Nutter]

On Thu, Dec 10, 2009 at 6:50 AM, Regis Aubarede
<regis.a...@gmail.com> wrote:
> jruby 1.4.0 : error on socket.bind

You should definitely try JRuby 1.5.1. There were hundreds of bug
fixes, including many for sockets.

- Charlie