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);
}
}
