public DBServer()
{
//Console.WriteLine("Remember: spaces in filenames not allowed atm");
IPAddress localIP = LocalIPAddress();
if (localIP == null)
{
Console.WriteLine("Server does not have internet connectivity, cannot continue.");
Environment.Exit(-1);
}
azureLink = new Backend();
int pid = System.Diagnostics.Process.GetCurrentProcess().Id;
ILocks distLockDb = DBLocks.DBLocks.initLocks(localIP.ToString(), pid);
lockDb = new LockTable(distLockDb);
try
{
serverSocket = new TcpListener(localIP, SERVER_CONTROL_PORT);
serverSocket.Start();
}
catch (Exception e)
{
Console.WriteLine("Error creating server socket: {0}", e.Message);
Environment.Exit(-1);
}
}
public LockTable(ILocks lockMgr)
{
this.distLockMgr = lockMgr;
activeLocks = new Dictionary <string, Lock>();
updaterThread = new System.Threading.Thread(new System.Threading.ThreadStart(clean));
updaterThread.IsBackground = true;
updaterThread.Start();
}
private DBTransferManager(DBServer srv)
{
this.azureLink = srv.getAzureLink();
this.globalLocks = srv.getLocks();
pendingUploads = new Dictionary <string, UPLOAD_INFO>();
listenSocket = new TcpListener(IPAddress.Any, DBServer.SERVER_CONTROL_PORT + 1);
listenSocket.Start();
new Thread(new ThreadStart(listen)).Start();
//control returns to DBServerWorker
}
private void doCleanup()
{
lock (activeLocks)
{
List <String> dropKey = new List <String>();
foreach (String key in activeLocks.Keys)
{
Lock l = activeLocks[key];
if (l.isWriteLock)
{
if (l.lockCreation.AddMinutes(W_TIMEOUT).CompareTo(new DateTime()) < 0)
{
if (DBTransferManager.getManager(null).abortDownload(key))
{
dropKey.Add(key);
//activeLocks.Remove(key);
}
else
{
l.lockCreation = l.lockCreation.AddMinutes(W_TIMEOUT);
}
}
}
else
{
if (l.lockCreation.AddMinutes(R_TIMEOUT).CompareTo(new DateTime()) < 0)
{
dropKey.Add(key);
//((ILocks)(this)).releaseReadLock(key);
//activeLocks.Remove(key);
}
}
} //forEach
ILocks ilock = (ILocks)this;
foreach (string s in dropKey)
{
Lock l = activeLocks[s];
if (l.isWriteLock)
{
ilock.releaseWriteLock(s);
}
else
{
ilock.releaseReadLock(s);
}
}
} //lock
}
