public void Join(SpreadConnection c, string groupName) { // Check if this group has already been joined. /////////////////////////////////////////////// if(this.connection != null) { throw new SpreadException("Already joined."); } // Set member variables. //////////////////////// this.connection = c; this.name = groupName; // Error check the name. //////////////////////// byte[] bytes; try { bytes = System.Text.Encoding.ASCII.GetBytes(name); } catch(Exception e) { throw new SpreadException("Encoding not supported: "+e); } for(int i = 0 ; i < bytes.Length ; i++) { // Make sure the byte (character) is within the valid range. //////////////////////////////////////////////////////////// if((bytes[i] < 36) || (bytes[i] > 126)) { throw new SpreadException("Illegal character in group name."); } } // Get a new message. ///////////////////// SpreadMessage joinMessage = new SpreadMessage(); // Set the group we're sending to. ////////////////////////////////// joinMessage.AddGroup(name); // Set the service type. //////////////////////// joinMessage.ServiceType = SpreadMessage.JOIN_MESS; // Send the message. //////////////////// connection.Multicast(joinMessage); }
public Flooder(String user, int numMessages, int numBytes, String address, int port, bool readOnly, bool writeOnly) { try { // Start timer. /////////////// DateTime startTime = DateTime.Now; // Connect. /////////// SpreadConnection connection = new SpreadConnection(); connection.Connect(address, port, user, false, false); string privateName = connection.PrivateGroup.ToString(); // Join. //////// SpreadGroup group = new SpreadGroup(); if(readOnly) { Console.WriteLine("Only receiving messages"); group.Join(connection, "flooder"); } else if(writeOnly) { Console.WriteLine("Starting multicast of " + numMessages + " messages, " + numBytes + " bytes each (self discarding)."); } else { group.Join(connection, "flooder"); Console.WriteLine("Starting multicast of " + numMessages + " messages, " + numBytes + " bytes each."); } // The outgoing message. //////////////////////// SpreadMessage mout = null; if(readOnly == false) { mout = new SpreadMessage(); mout.IsSafe = true; mout.Data = new byte[numBytes]; mout.AddGroup("flooder"); } // Send/Receive. //////////////// for(int i = 1 ; i <= numMessages ; i++) { // Send. //////// if(readOnly == false) { connection.Multicast(mout); } // Receive. /////////// if((readOnly) || ((i > 50) && (writeOnly == false))) { SpreadMessage min; do { min = connection.Receive(); } while((readOnly == false) && (privateName.Equals(min.Sender.ToString()) == false)); } // Report. ////////// if((i % 1000) == 0) { Console.WriteLine("Completed " + i + " messages"); } } // Stop timer. ////////////// DateTime stopTime = DateTime.Now; TimeSpan time = stopTime.Subtract(startTime); double Mbps = numBytes; Mbps *= numMessages; Mbps *= 8; if((readOnly == false) && (writeOnly == false)) Mbps *= 2; Mbps *= 1000; Mbps /= time.TotalMilliseconds; Mbps /= (1024 * 1024); Console.WriteLine("Time: " + time + "ms (" + (int)Mbps + "." + (((int)(Mbps * 100)) % 100) + " Mbps)"); } catch(Exception e) { Console.WriteLine(e); } }