public Server()
{
tupleSpace = new TupleSpaceSMR();
tpool = new ThreadPool(5, 10);
work = null;
}
static void Main(string[] args)
{
TcpChannel channel;
string name;
int id;
if (args.Count() > 0)
{
channel = new TcpChannel(Int32.Parse(args[0].Split(':')[2].Split('/')[0]));
name = args[0].Split('/')[3];
id = Int32.Parse(args[1]);
}
else
{
channel = new TcpChannel(8088);
name = "DIDA-TUPLE-SMR";
id = 1;
}
ChannelServices.RegisterChannel(channel, false);
TupleSpaceSMR server = new TupleSpaceSMR();
//Set min delay and max delay
if (args.Length == 4)
{
server.MinDelay = Int32.Parse(args[2]);
server.MaxDelay = Int32.Parse(args[3]);
}
server.MyPath = args[0];
server.ServerId = id;
//if requests received, they are delayed until log recover and master finding complete
server.SoftFreeze();
RemotingServices.Marshal(server, name, typeof(TupleSpaceSMR));
List <string> servers = new List <string>();
try
{
string[] file = File.ReadAllLines(Path.Combine(Directory.GetCurrentDirectory(), "../../../config/serverListSMR.txt"));
foreach (string i in file)
{
//Just ignore my path when caching server's URL
if (args[0] != i)
{
servers.Add(i);
}
}
server.SetServers(servers);
}
catch (FileNotFoundException)
{
System.Console.WriteLine("Server List not Found");
System.Console.WriteLine("Aborting...");
System.Environment.Exit(1);
}
string pathMaster = "";
bool logUpdated = false;
Console.WriteLine(server.Log);
bool alreadyDiscoverMaster = false;
for (int i = 0; i < server.ServerId; i++)
{
foreach (string serverPath in servers)
{
try
{
ITotalOrder remoteServer = (ITotalOrder)Activator.GetObject(typeof(ITotalOrder), serverPath);
if (logUpdated == false)
{
//when the server start running fetch from one server the log
//so i can sync my tuple space
server.Log = remoteServer.fetchLog();
Console.WriteLine(server.Log);
//execute by order operation in that log
server.executeLog();
logUpdated = true;
}
//ask if this replic is the master and give them my path
if (remoteServer.areYouTheMaster(args[0]))
{
pathMaster = serverPath;
server.MasterPath = pathMaster;
//All replicas ping the master
server.setBackup(pathMaster);
alreadyDiscoverMaster = true;
break;
}
}
catch (Exception)
{
Console.WriteLine((i + 1) + " attempt -> Failed reaching " + serverPath);
}
}
if (alreadyDiscoverMaster)
{
break;
}
}
//no master exists! so i am the master now!
if (pathMaster == "")
{
server.setIAmTheMaster();
server.MasterPath = server.MyPath;
Console.WriteLine("** STATUS: I'm the master now!");
}
else
{
Console.WriteLine("** STATUS: The master is at " + pathMaster);
}
//log was updated and master search is over, so i can receive client requests
server.SoftUnFreeze();
System.Console.WriteLine("DIDA-TUPLE-SMR Server Started!");
System.Console.WriteLine("---------------");
System.Console.WriteLine("<Enter> to exit...");
System.Console.ReadLine();
}
