internal void EndAcceptControlConnection(IAsyncResult ar)
{
try {
string _filePath = (string)ar.AsyncState;
Socket _clientSocket = controlSocket.EndAccept(ar);
NetworkCommunicationManagers.Disconnect(controlSocket);
controlSocket = _clientSocket;
byte[] _buffer = packFileMetadata(_filePath);
NetworkCommunicationManagers.SendIntOverSocket(dataSocket, _buffer.Length);
NetworkCommunicationManagers.SendByteArrayOverSocket(dataSocket, _buffer);
fileTransferContainer.FileTransferClassInstance = this;
managedSendFileOverSockets(_filePath);
}
catch (Exception) {
NetworkCommunicationManagers.Disconnect(controlSocket);
NetworkCommunicationManagers.Disconnect(dataSocket);
lock (RunningTransfers) {
if (fileTransferContainer.status != FileTransferStatus.Cancelled)
{
fileTransferContainer.status = FileTransferStatus.Error;
}
}
return;
}
}
internal void EndAcceptDataConnection(IAsyncResult ar)
{
try {
port2 = NetworkCommunicationManagers.FindNextFreeTcpPort();
Socket _clientSocket = dataSocket.EndAccept(ar);
NetworkCommunicationManagers.Disconnect(dataSocket);
dataSocket = _clientSocket;
NetworkCommunicationManagers.SendIntOverSocket(_clientSocket, port2);
controlSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
controlSocket.Bind(new System.Net.IPEndPoint(System.Net.IPAddress.Any, port2));
controlSocket.Listen(1);
controlSocket.BeginAccept(new AsyncCallback(EndAcceptControlConnection), ar.AsyncState);
}
catch (Exception) {
NetworkCommunicationManagers.Disconnect(dataSocket);
lock (RunningTransfers) {
if (fileTransferContainer.status != FileTransferStatus.Cancelled)
{
fileTransferContainer.status = FileTransferStatus.Error;
}
}
return;
}
}
internal void managedSendFileOverSockets(string filePath)
{
fileTransferContainer.filePath = filePath;
short _count = 0;
const short _INITIAL = 5000;
Thread _thread = new Thread(() => monitorControlChannel());
_thread.Name = "Control Socket monitor for " + dataSocket.RemoteEndPoint.ToString();
_thread.IsBackground = true;
_thread.Start();
using (FileStream _fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {
byte[] _fileBuffer = new byte[FILE_BUFFER_SIZE];
long _size = _fs.Length;
try {
long _index = 0;
//Send the initial chunk of data
while (dataSocket.Connected && controlSocket.Connected && _index < _size)
{
if (fileTransferContainer.status == FileTransferStatus.Paused)
{
resetEvent.WaitOne();
}
_fs.Position = _index;
int _read = _fs.Read(_fileBuffer, 0, _fileBuffer.Length);
try {
NetworkCommunicationManagers.SendIntOverSocket(dataSocket, _read);
if (_read != _fileBuffer.Length)
{
byte[] _temp = new byte[_read];
Buffer.BlockCopy(_fileBuffer, 0, _temp, 0, _read);
NetworkCommunicationManagers.SendByteArrayOverSocket(dataSocket, _temp);
}
else
{
NetworkCommunicationManagers.SendByteArrayOverSocket(dataSocket, _fileBuffer);
}
}
catch (SocketException) {
continue;
}
_index += _read;
_count++;
if (_count % 200 == 0)
{
lock (RunningTransfers) {
if (Math.Round(((((double)_index / _size) * 100) - fileTransferContainer.progress), 1) >= 0.1)
{
fileTransferContainer.progress = (float)Math.Round(((double)_index / _size) * 100, 1);
}
}
}
if (_count == _INITIAL)
{
_count = 0;
break;
}
}
//Send the remaining data
while (dataSocket.Connected && controlSocket.Connected && _index < _size)
{
_fs.Position = _index;
int _read = _fs.Read(_fileBuffer, 0, _fileBuffer.Length);
try {
NetworkCommunicationManagers.SendIntOverSocket(dataSocket, _read);
if (_read != _fileBuffer.Length)
{
byte[] _temp = new byte[_read];
Buffer.BlockCopy(_fileBuffer, 0, _temp, 0, _read);
NetworkCommunicationManagers.SendByteArrayOverSocket(dataSocket, _temp);
}
else
{
NetworkCommunicationManagers.SendByteArrayOverSocket(dataSocket, _fileBuffer);
}
}
catch (SocketException) {
continue;
}
_index += _read;
_count++;
if (_count % 200 == 0)
{
lock (RunningTransfers){
if (Math.Round(((((double)_index / _size) * 100) - fileTransferContainer.progress), 1) >= 0.1)
{
fileTransferContainer.progress = (float)Math.Round((((double)_index / _size) * 100), 1);
}
}
bool _wait = true;
while (true)
{
lock (syncObject) {
if (acknowledgedTransfers > 0)
{
acknowledgedTransfers--;
_wait = false;
break;
}
}
if (_wait)
{
Thread.Sleep(100);
}
}
}
}
if (_index == _size)
{
lock (RunningTransfers) {
fileTransferContainer.progress = 100;
fileTransferContainer.status = FileTransferStatus.Finished;
}
}
else
{
lock (RunningTransfers) {
if (fileTransferContainer.status != FileTransferStatus.Cancelled)
{
fileTransferContainer.status = FileTransferStatus.Error;
}
}
}
}
catch {
lock (RunningTransfers) {
if (fileTransferContainer.status != FileTransferStatus.Cancelled)
{
fileTransferContainer.status = FileTransferStatus.Error;
}
}
}
}
}
