// Start waiting for data from the client
public void WaitForData(System.Net.Sockets.Socket soc)
{
try
{
if (BeginReceiveCallBack == null)
{
// Specify the call back function which is to be
// invoked when there is any write activity by the
// connected client
BeginReceiveCallBack = new AsyncCallback(OnDataReceived);
}
SocketPacket theSocPkt = new SocketPacket();
theSocPkt.currentSocket = soc;
// Start receiving any data written by the connected client
// asynchronously
soc.BeginReceive(theSocPkt.dataBuffer, 0,
theSocPkt.dataBuffer.Length,
SocketFlags.None,
BeginReceiveCallBack,
theSocPkt);
}
catch (Exception ex)
{
ServerException(this, new ExceptionEventArgs(ex));
}
}
/// <summary>
/// Ожидание получения данных.
/// </summary>
public void WaitForData()
{
try
{
if (BeginReceiveCallBack == null)
{
BeginReceiveCallBack = new AsyncCallback(OnDataReceived);
}
SocketPacket theSocPkt = new SocketPacket();
theSocPkt.currentSocket = ClientSocket;
// Start listening to the data asynchronously
ClientSocket.BeginReceive(theSocPkt.dataBuffer,
0, theSocPkt.dataBuffer.Length,
SocketFlags.None,
BeginReceiveCallBack,
theSocPkt);
}
catch (Exception ex)
{
ClientException(this, new ExceptionEventArgs(ex));
}
}
public void OnDataReceived(IAsyncResult asyn)
{
SocketPacket theSockId = (SocketPacket)asyn.AsyncState;
try
{
int byteReceived = theSockId.currentSocket.EndReceive(asyn);
if (byteReceived > 0)
{
string szData = Encoding.UTF8.GetString(theSockId.dataBuffer, 0, byteReceived);
MessageReceived(this, new ReceivedEventArgs(szData));
}
WaitForData();
}
catch (Exception ex)
{
ClientException(this, new ExceptionEventArgs(ex));
if (!theSockId.currentSocket.Connected)
{
Disconnected(this, EventArgs.Empty);
}
}
}
// This the call back function which will be invoked when the socket
// detects any client writing of data on the stream
public void OnDataReceived(IAsyncResult asyn)
{
SocketPacket socketData = (SocketPacket)asyn.AsyncState;
try
{
// Complete the BeginReceive() asynchronous call by EndReceive() method
// which will return the number of characters written to the stream
// by the client
int byteReceived = socketData.currentSocket.EndReceive(asyn);
if (byteReceived > 0)
{
string szData = Encoding.UTF8.GetString(socketData.dataBuffer, 0, byteReceived);
//Socket clientSocket = FindClientSocket(socketData.m_currentSocket);
Socket clientSocket = socketData.currentSocket;
if (clientSocket != null)
{
AsyncClient client = new AsyncClient(clientSocket);
MessageReceived(this, new ServerReceivedEventArgs(client, szData));
}
}
// Continue the waiting for data on the Socket
WaitForData(socketData.currentSocket);
}
catch (Exception ex)
{
// Очистка списка и словаря клиентов.
AsyncClient asyncClient = AsyncClientsDict[socketData.currentSocket];
Clients.Remove(asyncClient);
AsyncClientsDict.Remove(socketData.currentSocket);
ServerException(this, new ExceptionEventArgs(ex));
}
}
