private static void ProcessClient(Port port, TcpClient client)
{
Console.WriteLine("Processing port {0}.", port);
var nb = new Neighbor(port, client);
while (Global.RoutingTable == null) { Thread.Sleep(10); Console.WriteLine("Sleep"); }
while (Global.Threads == null) { Thread.Sleep(10); Console.WriteLine("Sleep"); }
while (Global.Neighbors == null) { Thread.Sleep(10); Console.WriteLine("Sleep"); }
lock (Global.Neighbors) {
if(Global.Neighbors.ContainsKey(port))
Global.Neighbors[port] = nb;
else Global.Neighbors.Add(port, nb);
Console.WriteLine("Neighbor added");
}
lock (Global.RoutingTable) {
if (!Global.RoutingTable.ContainsKey(port))
Global.RoutingTable.Add(port, new Row() { NBu = port, Du = 1 });
else {
Global.RoutingTable[port].NBu = port;
Global.RoutingTable[port].Du = 1;
Console.WriteLine("Routing Table row updated");
}
if(Global.RoutingTable[port].NDISu.ContainsKey(port))
Global.RoutingTable[port].NDISu[port] = 0;
else
Global.RoutingTable[port].NDISu.Add(port, 0);
}
lock (Global.Threads) {
var listenForMessages = new Thread(() => ListenTo(port, client));
Global.Threads.Add(port, listenForMessages);
listenForMessages.Start();
Console.WriteLine("Listener added");
}
if (Global.Verbose)
Console.WriteLine("Nieuwe verbinding met node {0}".Formatter(port));
RoutingTable.AddDirty(port);
RoutingTable.AddNewPort(port);
}
static void Main(string[] args)
{
#if DEBUG
Console.WriteLine("Debugging mode");
#endif
if (args.Length == 0) {
args = new string[] { "1002", "1001" };
}
int iterator = 0; // For easier handling of the args array, since we have two optional parameters but we always know when they can appear
if (args[0][0] == 'p') {
// Set console position
int x = int.Parse(args[iterator++].Substring(1)), y = int.Parse(args[iterator++].Substring(1));
SetWindowPos(MyConsole, 0, x, y, 0, 0, SWP_NOSIZE);
Console.Title = "port = {0}, x = {1}, y = {2}".Formatter(args[iterator], x, y); // Port number
} // In both cases, set the proper requested console title
else {
Console.Title = "port = {0}".Formatter(args[iterator]); // Port number
}
// Initialize routing table
Global.LocalPort = Port.Parse(args[iterator]);
var local = new Neighbor(Global.LocalPort, null);
Global.RoutingTable.Add(Global.LocalPort, new Row() { NBu = Global.LocalPort, Du = 0 });
// Start listener service first
Thread listener = new Thread(() => ListenAt(Global.LocalPort));
listener.Start();
// Connect to other ports
while (++iterator < args.Length) {
Port port = Port.Parse(args[iterator]);
#if DEBUG
Console.WriteLine(port);
#endif
if (port > Global.LocalPort) ConnectTo(port);
#if DEBUG
else Console.WriteLine("Skipped");
#endif
}
#if DEBUG
Console.WriteLine("Connected to them all, time to broadcast");
#endif
// Input handling
while (true) {
var input = Console.ReadLine();
if (input.StartsWith("S")) {
var prev = Global.Slowdown;
if(int.TryParse(input.Substring(2), out Global.Slowdown)) {
if (Global.Slowdown < 0) {
Global.Slowdown = prev;
Console.WriteLine(Global.Strings.ParameterError, "slowdown", "n", "a positive number");
}
}
Console.WriteLine(Global.Strings.ParameterError, "slowdown", "n", "a positive number");
continue;
}
if (input.StartsWith("R")) {
PrintRoutingTable();
continue;
}
if (input.StartsWith("M")) {
Console.WriteLine("Total number of distance estimates sent by this node: {0}".Formatter(Global.DistanceEstimates));
continue;
}
if (input.StartsWith("T")) {
input = input.Substring(2).Trim();
if (input.Equals("off", StringComparison.InvariantCultureIgnoreCase))
Global.Verbose = false;
else if (input.Equals("on", StringComparison.InvariantCultureIgnoreCase))
Global.Verbose = true;
else
Console.WriteLine(Global.Strings.ParameterError, "toggle", "state", "on or off");
continue;
}
if (input.StartsWith("D")) {
Port target;
if (Port.TryParse(input.Split(' ')[1], out target)) {
lock (Global.RoutingTable)
lock (Global.Neighbors)
if (Global.Neighbors.ContainsKey(target)) {
Global.RoutingTable[target].SendMessage(Global.CreatePackage(Global.PackageNames.Disconnect, target, Global.LocalPort.ToString()));
Disconnect(target);
}
else
Console.WriteLine(Global.Strings.ParameterError, "delete", "port", "a valid port number that is connected to this node");
}
else
Console.WriteLine(Global.Strings.ParameterError, "delete", "port", "a valid port number");
continue;
}
if (input.StartsWith("C")) {
Port target;
if (Port.TryParse(input.Split(' ')[1], out target)) {
ConnectTo(target);
}
else
Console.WriteLine(Global.Strings.ParameterError, "connect", "port", "a valid port number");
continue;
}
if (input.StartsWith("B")) {
var split = input.Split(' ');
Port target;
if (split.Length > 2 && Port.TryParse(split[1], out target)) {
if (!IsInPartition(target) || target == Global.LocalPort) {
Console.WriteLine(Global.Strings.ParameterError, "broadcast", "port", "a valid port number that is connected to the current node");
continue;
}
var message = new StringBuilder(split[2]);
for (int i = 3; i < split.Length; i++)
message.AppendFormat(" {0}", split[i]);
var msg = Global.CreatePackage("Broadcast", target, message.ToString());
Port sendTo;
lock (Global.RoutingTable)
sendTo = Global.RoutingTable[target].NBu;
#if DEBUG
Console.WriteLine("About to broadcast {0} to port {1} via port {2}", msg, target, sendTo);
#endif
lock (Global.Neighbors)
Global.Neighbors[sendTo].SendMessage(msg);
#if DEBUG
Console.WriteLine("Sent message to {0}", target);
#endif
continue;
}
if (split.Length > 2)
Console.WriteLine(Global.Strings.ParameterError, "broadcast", "port", "a valid port number");
else
Console.WriteLine(Global.Strings.ParameterError, "broadcast", "message", "a valid message");
continue;
}
Console.WriteLine("You entered an invalid command. Please retry");
}
}