Thread Questions

[Max Kuffs]

Hello,

I would like to write a little TCPServer which communicates with
another ruby program on another computer.

So i tried all with TCPServer. I could connect and it worked, but i
want to execute it in a thread and now the program halts when i open
the server.


i use ruby 1.8 for windows. does this matter in that case?

best regards
Max Kuffs

My source:

require 'socket'

SERVER_PORT = 4772
LISTEN_ON = '0.0.0.0'

srv = Thread.new(){
ss=TCPServer.new LISTEN_ON,SERVER_PORT
con=ss.accept
while !con.eof?
puts con.gets
end
}

while true do
puts "Cycle"
if srv.stop? then
# Restarting Thread if died
puts "Restarting Server Thread!"
srv.run
end
puts "sleeep-----------------------------------------"
sleep 5

end

 

[Robert Klemme]

Hello,

I would like to write a little TCPServer which communicates with
another ruby program on another computer.

So i tried all with TCPServer. I could connect and it worked, but i
want to execute it in a thread and now the program halts when i open
the server.

You got the logic wrong: typically you want to serve each client in a
separate thread. Try this:

require 'socket'

SERVER_PORT = 4772
LISTEN_ON = '0.0.0.0'

server = TCPServer.new LISTEN_ON, SERVER_PORT
clients = 0

while true
Thread.new( server.accept, clients += 1 ) do |con, clnt|
puts "Connect with client #{clnt}"
while ( line = ( con.gets ) )
puts "From client #{clnt}: #{line}"
end
puts "EOF #{clnt}"
end
end

Note: I introduced "clients" and "clnt" just for the purpose of
distinguishing output from different clients.

Kind regards

robert

 

[Max Kuffs]

thank you very much!
the example helped, i think i understand why it didn't work the way i
wanted.

regards
max kuffs