public static void AcceptCallback(IAsyncResult ar)
{
// Signal the main thread to continue.
allDone.Set();
// Get the socket that handles the client request.
Socket listener = (Socket)ar.AsyncState;
Socket handler = listener.EndAccept(ar);
// Create the state object.
StateObject2 state = new StateObject2();
state.workSocket = handler;
handler.BeginReceive(state.buffer, 0, StateObject2.BufferSize, 0,
new AsyncCallback(ReadCallback), state);
}
public static void ReadCallback(IAsyncResult ar)
{
String content = String.Empty;
// Retrieve the state object and the handler socket
// from the asynchronous state object.
StateObject2 state = (StateObject2)ar.AsyncState;
Socket handler = state.workSocket;
// Read data from the client socket.
int bytesRead = handler.EndReceive(ar);
Console.WriteLine(state.buffer);
if (bytesRead > 0)
{
using (var fs = new FileStream("C:\\Projects\\aff.bin", FileMode.CreateNew, FileAccess.ReadWrite))
{
fs.Write(state.buffer, 0, bytesRead);
}
Console.Write(Encoding.UTF8.GetString(
state.buffer, 0, bytesRead));
// There might be more data, so store the data received so far.
state.sb.Append(Encoding.ASCII.GetString(
state.buffer, 0, bytesRead));
// Check for end-of-file tag. If it is not there, read
// more data.
content = state.sb.ToString();
Console.WriteLine(content);
if (content.IndexOf("<EOF>") > -1)
{
// All the data has been read from the
// client. Display it on the console.
Console.WriteLine("Read {0} bytes from socket. \n Data : {1}",
content.Length, content);
// Echo the data back to the client.
Send(handler, content);
}
else
{
// Not all data received. Get more.
handler.BeginReceive(state.buffer, 0, StateObject2.BufferSize, 0,
new AsyncCallback(ReadCallback), state);
}
}
}