static void ProcessNotifyClockQueue(PseudoTcpSocket conn, Queue notifyClockQueue)
{
PLog.DEBUG("Entering ProcessNotifyClockQueue with queue size={0}", notifyClockQueue.Count);
if (notifyClockQueue.Count != 0)
{
PLog.DEBUG("...and head timestamp={0}, current time={1}", notifyClockQueue.Peek(), Environment.TickCount);
}
if (notifyClockQueue.Count == 0)
{
UdpCallbacks.AdjustClock(conn, notifyClockQueue);
return;
}
bool keepChecking = true;
while (keepChecking && notifyClockQueue.Count > 0)
{
int iTimestamp = (int)notifyClockQueue.Peek();
if (Environment.TickCount > iTimestamp)
{
SyncPseudoTcpSocket.NotifyClock(conn);
notifyClockQueue.Dequeue();
}
else
{
keepChecking = false;
}
}
}
static int SendFragment(PseudoTcpSocket conn, byte[] buffer, int fragmentSize, Queue notifyClockQueue)
{
int sent;
do
{
PLog.DEBUG("Trying to send {0} bytes", fragmentSize);
sent = SyncPseudoTcpSocket.Send(conn, buffer, (uint)fragmentSize);
if (sent == -1)
{
PLog.DEBUG("sent==-1 so processing notifyClockQueue");
ProcessNotifyClockQueue(conn, notifyClockQueue);
}
else
{
UdpCallbacks.AdjustClock(conn, notifyClockQueue);
}
UdpCallbacks.PollingSleep(sent, -1);
} while (sent == -1);
PLog.DEBUG("Tried sending fragment sized {0} with result {1}", fragmentSize, sent);
return(sent);
}
static PseudoTcpSocket PeerConnect(string externalAddr, int externalPort,
Socket socket, string remoteAddr, int remotePort,
CommandLineArguments cla)
{
bool bConnected = false;
int retry = 0;
PseudoTcpSocket client = null;
while (!bConnected)
{
try
{
Console.WriteLine("Getting internet time");
DateTime now = InternetTime.Get();
int nextTimeToSync = NextTime(now);
int sleepTimeToSync = nextTimeToSync - now.Second;
Console.WriteLine("[{0}] - Waiting {1} sec to sync with other peer",
now.ToLongTimeString(),
sleepTimeToSync);
System.Threading.Thread.Sleep(sleepTimeToSync * 1000);
PseudoTcpSocket.Callbacks cbs = new PseudoTcpSocket.Callbacks();
UdpCallbacks icbs = new UdpCallbacks();
cbs.WritePacket = icbs.WritePacket;
cbs.PseudoTcpOpened = icbs.Opened;
cbs.PseudoTcpWritable = icbs.Writable;
cbs.PseudoTcpClosed = icbs.Closed;
client = PseudoTcpSocket.Create(0, cbs);
client.NotifyMtu(1496); // Per PseudoTcpTests
bool success = icbs.Init(externalAddr, externalPort, remoteAddr, remotePort,
client, socket, cla.Sender, nextTimeToSync);
if (false == success)
{
continue;
}
PLog.DEBUG("Created PseudoTcpSocket");
Console.WriteLine("\r{0} - Trying to connect to {1}:{2}. ",
retry++, remoteAddr, remotePort);
if (cla.Sender)
{
PLog.DEBUG("Sender: calling PseudoTcpSocket.Connect");
client.Connect();
}
int startTime = Environment.TickCount;
while (false == bConnected)
{
Console.WriteLine("priv.state=={0}", client.priv.state);
if (PseudoTcpSocket.PseudoTcpState.Values.TCP_ESTABLISHED == client.priv.state)
{
Console.WriteLine("Connected successfully to {0}:{1}",
remoteAddr, remotePort);
bConnected = true;
}
else
{
if (Environment.TickCount > startTime + Config.MAX_TCP_HANDSHAKE_TIME)
{
Console.WriteLine("5 secs timed out with priv.state={0}", client.priv.state);
break;
}
else
{
Console.WriteLine("Waiting for TCP_ESTABLISHED...");
Thread.Sleep(500);
}
}
}
}
catch (Exception e)
{
Console.WriteLine(e.Message.Replace(Environment.NewLine, ". "));
Console.WriteLine(e.StackTrace);
Console.WriteLine("Inner exception=" + e.InnerException);
}
}
return(client);
}
static internal void Run(PseudoTcpSocket conn)
{
PLog.DEBUG("In Receiver.Run");
int ini = Environment.TickCount;
byte[] ackBuffer = new byte[1];
ackBuffer [0] = 1;
long got = 0;
byte[] fnlBytes = new byte[4];
do
{
got = SyncPseudoTcpSocket.Recv(conn, fnlBytes, 4);
PLog.DEBUG("Reading filename length, got={0}", got);
UdpCallbacks.PollingSleep(got, -1);
} while (got == -1);
SyncPseudoTcpSocket.Send(conn, ackBuffer, 1);
uint fileNameLengthBytes = (uint)BitConverter.ToInt32(fnlBytes, 0);
PLog.DEBUG("Got filename length=" + fileNameLengthBytes);
byte[] fnBytes = new byte[fileNameLengthBytes];
do
{
got = SyncPseudoTcpSocket.Recv(conn, fnBytes, fileNameLengthBytes);
PLog.DEBUG("Reading filename, got={0}", got);
UdpCallbacks.PollingSleep(got, -1);
} while (got == -1);
SyncPseudoTcpSocket.Send(conn, ackBuffer, 1);
PLog.DEBUG("filename bytes=" + BitConverter.ToString(fnBytes));
string fileName = System.Text.Encoding.UTF8.GetString(fnBytes);
Console.WriteLine("Receiving file: {0}", fileName);
byte[] fileSizeBytes = new byte[sizeof(long)];
do
{
got = SyncPseudoTcpSocket.Recv(conn, fileSizeBytes, (uint)fileSizeBytes.Length);
PLog.DEBUG("Reading file size, got={0}", got);
UdpCallbacks.PollingSleep(got, -1);
} while (got == -1);
SyncPseudoTcpSocket.Send(conn, ackBuffer, 1);
long size = (long)BitConverter.ToInt64(fileSizeBytes, 0);
Console.WriteLine("File size={0} bytes", size);
byte[] buffer = new byte[4 * 1024 * 1024];
int i = 0;
ConsoleProgress.Draw(i++, 0, size, ini, Console.WindowWidth / 2);
using (FileStream fileStream = new FileStream(fileName, FileMode.Create))
{
long len = 0;
long read = 0;
while (read < size)
{
do
{
PLog.DEBUG("{0} Reading file data... so far total read={1}", Environment.TickCount, read);
len = SyncPseudoTcpSocket.Recv(conn, buffer, (uint)buffer.Length);
UdpCallbacks.PollingSleep(len, -1);
} while (len == -1);
PLog.DEBUG("Read {0} bytes of file data", len);
fileStream.Write(buffer, 0, (int)len);
read += len;
ConsoleProgress.Draw(i++, read, size, ini, Console.WindowWidth / 2);
}
double MB = (double)size * 8.0 / (1024.0 * 1024.0);
double rxTime = (Environment.TickCount - ini) / 1000.0;
Console.WriteLine();
Console.WriteLine("Receive time=" + rxTime + " secs");
Console.WriteLine("Av bandwidth=" + MB / rxTime + " Mbits/sec");
}
}
