i have an update server that sends client updates through TCP port 12000, the sending of a single file is successful only the first time, but after that i get an error message on the server "Unable to write data to the
transport connection: An existing connection was forcibly closed by the remote host", if i restart the update service on the server, it works again only one, i have normal multithreaded windows service
SERVER CODE
namespace WSTSAU
{
public partial class ApplicationUpdater : ServiceBase
{
private Logger logger = LogManager.GetCurrentClassLogger();
private int _listeningPort;
private int _ApplicationReceivingPort;
private string _setupFilename;
private string _startupPath;
public ApplicationUpdater()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
init();
logger.Info("after init");
Thread ListnerThread = new Thread(new ThreadStart(StartListener));
ListnerThread.IsBackground = true;
ListnerThread.Start();
logger.Info("after thread start");
}
private void init()
{
_listeningPort = Convert.ToInt16(ConfigurationSettings.AppSettings["ListeningPort"]);
_setupFilename = ConfigurationSettings.AppSettings["SetupFilename"];
_startupPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase).Substring(6);
}
private void StartListener()
{
try
{
logger.Info("Listening Started");
ThreadPool.SetMinThreads(50, 50);
TcpListener listener = new TcpListener(_listeningPort);
listener.Start();
while (true)
{
TcpClient c = listener.AcceptTcpClient();
ThreadPool.QueueUserWorkItem(ProcessReceivedMessage, c);
}
}
catch (Exception ex)
{
logger.Error(ex.Message);
}
}
void ProcessReceivedMessage(object c)
{
try
{
TcpClient tcpClient = c as TcpClient;
NetworkStream Networkstream = tcpClient.GetStream();
byte[] _data = new byte[1024];
int _bytesRead = 0;
_bytesRead = Networkstream.Read(_data, 0, _data.Length);
MessageContainer messageContainer = new MessageContainer();
messageContainer = SerializationManager.XmlFormatterByteArrayToObject(_data, messageContainer) as MessageContainer;
switch (messageContainer.messageType)
{
case MessageType.ApplicationUpdateMessage:
ApplicationUpdateMessage appUpdateMessage = new ApplicationUpdateMessage();
appUpdateMessage = SerializationManager.XmlFormatterByteArrayToObject(messageContainer.messageContnet, appUpdateMessage) as ApplicationUpdateMessage;
Func<ApplicationUpdateMessage, bool> HandleUpdateRequestMethod = HandleUpdateRequest;
IAsyncResult cookie = HandleUpdateRequestMethod.BeginInvoke(appUpdateMessage, null, null);
bool WorkerThread = HandleUpdateRequestMethod.EndInvoke(cookie);
break;
}
}
catch (Exception ex)
{
logger.Error(ex.Message);
}
}
private bool HandleUpdateRequest(ApplicationUpdateMessage appUpdateMessage)
{
try
{
TcpClient tcpClient = new TcpClient();
NetworkStream networkStream;
FileStream fileStream = null;
tcpClient.Connect(appUpdateMessage.receiverIpAddress, appUpdateMessage.receiverPortNumber);
networkStream = tcpClient.GetStream();
fileStream = new FileStream(_startupPath + "\\" + _setupFilename, FileMode.Open, FileAccess.Read);
FileInfo fi = new FileInfo(_startupPath + "\\" + _setupFilename);
BinaryReader binFile = new BinaryReader(fileStream);
FileUpdateMessage fileUpdateMessage = new FileUpdateMessage();
fileUpdateMessage.fileName = fi.Name;
fileUpdateMessage.fileSize = fi.Length;
MessageContainer messageContainer = new MessageContainer();
messageContainer.messageType = MessageType.FileProperties;
messageContainer.messageContnet = SerializationManager.XmlFormatterObjectToByteArray(fileUpdateMessage);
byte[] messageByte = SerializationManager.XmlFormatterObjectToByteArray(messageContainer);
networkStream.Write(messageByte, 0, messageByte.Length);
int bytesSize = 0;
byte[] downBuffer = new byte[2048];
while ((bytesSize = fileStream.Read(downBuffer, 0, downBuffer.Length)) > 0)
{
networkStream.Write(downBuffer, 0, bytesSize);
}
fileStream.Close();
tcpClient.Close();
networkStream.Close();
return true;
}
catch (Exception ex)
{
logger.Info(ex.Message);
return false;
}
finally
{
}
}
protected override void OnStop()
{
}
}
i have to note something that my windows service (server) is multithreaded..
i hope anyone can help with this
