Simple Server Question


#1

Guys -

I’m working on a simple Chat Server/Client just to become familiar with
ruby socket programming. I’ve put together this very simple server that
accepts a connect and prints out the first message received. I’ve done
this in Java as well, but the issue I’m finding here is I cannot ctrl+c
to quit the server. Do I need to create a thread to listen for keyboard
input and then pass this to a quit method? It seems to me that ctrl+c
(or ctrl+z depending on os) should always force quite a running program,
right? In this case, it’s just hanging. Any help appreciated.

-Dre2

require ‘socket’

class ChatServer

def initialize(port)
@port = port
end

def run_server

@sessions = {}
@my_server = TCPServer.new('localhost',@port)

puts "Server running...."

while(session = @my_server.accept)
  @action = session.gets
  puts @action
end

@my_server.close

end

end

my_server = ChatServer.new((ARGV[0] || 80).to_i)
my_server.run_server


#2

On Tue, Feb 06, 2007 at 11:45:35PM +0900, Drew O. wrote:

I’m working on a simple Chat Server/Client just to become familiar with
ruby socket programming. I’ve put together this very simple server that
accepts a connect and prints out the first message received. I’ve done
this in Java as well, but the issue I’m finding here is I cannot ctrl+c
to quit the server. Do I need to create a thread to listen for keyboard
input and then pass this to a quit method? It seems to me that ctrl+c
(or ctrl+z depending on os) should always force quite a running program,
right? In this case, it’s just hanging. Any help appreciated.

You didn’t say what platform you’re running on. It works for me, using
Linux
(Ubuntu 6.06):

$ ruby1.8 ert.rb 9999
Server running…
flurble << this sent from a client
ert.rb:16:in accept': Interrupt from ert.rb:16:inrun_server’
from ert.rb:27

If you are running Windoze, then I expect it’s blocking inside one of
the
socket calls.

BTW there is a fuller server example, which handles each incoming
connection
in its own thread, at
http://wiki.rubygarden.org/Ruby/page/show/SingletonTutorial

Search for “Pop3Server”

HTH,

B.


#3

If you are running Windoze, then I expect it’s blocking inside one of
the
socket calls.

BTW there is a fuller server example, which handles each incoming
connection
in its own thread, at
http://wiki.rubygarden.org/Ruby/page/show/SingletonTutorial

Search for “Pop3Server”

HTH,

B.

I am running Windows (at work, mac at home) but I thought ruby’s thread
were “cross platform” as there were implemented purely in ruby. I even
added a thread to handle keyboard input in the on the server and it’s
still locking on my box. I see the output:

Server running…
Press any key to quit…

But nothing I press unlocks it. Am I doing something wrong here (revised
code below)?

require ‘socket’

class ChatServer

def initialize(port)
@port = port
@sessions = {}
end

def run_server

@my_server = TCPServer.new('localhost',@port)

Thread.new(self){|server| InputHandler.new(server).run}

while(session = @my_server.accept)
  puts session.gets
  session.close
end

end

def quit
@my_server.close
exit
end

end

class InputHandler
def initialize(server)
@server = server
puts “Server running…”
end

def run
puts “Press any key to quit…”
gets
server.quit
end
end

my_server = ChatServer.new((ARGV[0] || 80).to_i)
my_server.run_server


#4

any luck with this? I’m lookin to use a chat server in my app but
haven’t had the guts to look into it yet…

On Tuesday February 6,2007, at February 6, 8:45AM, Drew O. wrote:

keyboard

my_server = ChatServer.new((ARGV[0] || 80).to_i)
my_server.run_server


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

Let go, and Let GOD!
Robert McCorkle
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