Data commit

Task/Chat-server/Ruby/chat-server.rb

@@ -0,0 +1,68 @@
+require 'gserver'
+
+class ChatServer < GServer
+  def initialize *args
+    super
+
+    #Keep a list for broadcasting messages
+    @chatters = []
+
+    #We'll need this for thread safety
+    @mutex = Mutex.new
+  end
+
+  #Send message out to everyone but sender
+  def broadcast message, sender = nil
+    #Need to use \r\n for our Windows friends
+    message = message.strip << "\r\n"
+
+    #Mutex for safety - GServer uses threads
+    @mutex.synchronize do
+      @chatters.each do |chatter|
+        begin
+          chatter.print message unless chatter == sender
+        rescue
+          @chatters.delete chatter
+        end
+      end
+    end
+  end
+
+  #Handle each connection
+  def serve io
+    io.print 'Name: '
+    name = io.gets
+
+    #They might disconnect
+    return if name.nil?
+
+    name.strip!
+
+    broadcast "--+ #{name} has joined +--"
+
+    #Add to our list of connections
+    @mutex.synchronize do
+      @chatters << io
+    end
+
+    #Get and broadcast input until connection returns nil
+    loop do
+      message = io.gets
+
+      if message
+        broadcast "#{name}> #{message}", io
+      else
+        break
+      end
+    end
+
+    broadcast "--+ #{name} has left +--"
+  end
+end
+
+#Start up the server on port 7000
+#Accept connections for any IP address
+#Allow up to 100 connections
+#Send information to stderr
+#Turn on informational messages
+ChatServer.new(7000, '0.0.0.0', 100, $stderr, true).start.join