internal static byte[] GetBytesFromStruct(HeaderMsg header)
{
//byte[] arr = null;
//try
//{z
// int size = Marshal.SizeOf(header);
// arr = new byte[size];
// IntPtr ptr = Marshal.AllocHGlobal(size);
// Marshal.StructureToPtr(header, ptr, true);
// Marshal.Copy(ptr, arr, 0, size);
// Marshal.FreeHGlobal(ptr);
//}
//catch(Exception e)
//{
// Console.WriteLine(e.Message);
//}
//return arr;
var stream = new MemoryStream();
var writer = new BinaryWriter(stream);
writer.Write(header.messageID);
writer.Write(header.messageFrom);
writer.Write(header.messageTO);
writer.Write(header.messageSize);
return stream.ToArray();
}
internal static byte[] GetBytesFromStruct(HeaderMsg header)
{
//byte[] arr = null;
//try
//{z
// int size = Marshal.SizeOf(header);
// arr = new byte[size];
// IntPtr ptr = Marshal.AllocHGlobal(size);
// Marshal.StructureToPtr(header, ptr, true);
// Marshal.Copy(ptr, arr, 0, size);
// Marshal.FreeHGlobal(ptr);
//}
//catch(Exception e)
//{
// Console.WriteLine(e.Message);
//}
//return arr;
var stream = new MemoryStream();
var writer = new BinaryWriter(stream);
writer.Write(header.messageID);
writer.Write(header.messageFrom);
writer.Write(header.messageTO);
writer.Write(header.messageSize);
return(stream.ToArray());
}
internal static HeaderMsg GetStructFromBytes(byte[] data)
{
//HeaderMsg header = new HeaderMsg();
//int size = Marshal.SizeOf(header);
//IntPtr ptr = Marshal.AllocHGlobal(size);
//Marshal.Copy(data, 0, ptr, size);
//header = (HeaderMsg)Marshal.PtrToStructure(ptr, data.GetType());
//Marshal.FreeHGlobal(ptr);
//return header;
var reader = new BinaryReader(new MemoryStream(data));
HeaderMsg header = new HeaderMsg();
header.messageID = reader.ReadInt32();
header.messageFrom = reader.ReadString();
header.messageTO = reader.ReadString();
header.messageSize = reader.ReadInt32();
return header;
}
internal static HeaderMsg GetStructFromBytes(byte[] data)
{
//HeaderMsg header = new HeaderMsg();
//int size = Marshal.SizeOf(header);
//IntPtr ptr = Marshal.AllocHGlobal(size);
//Marshal.Copy(data, 0, ptr, size);
//header = (HeaderMsg)Marshal.PtrToStructure(ptr, data.GetType());
//Marshal.FreeHGlobal(ptr);
//return header;
var reader = new BinaryReader(new MemoryStream(data));
HeaderMsg header = new HeaderMsg();
header.messageID = reader.ReadInt32();
header.messageFrom = reader.ReadString();
header.messageTO = reader.ReadString();
header.messageSize = reader.ReadInt32();
return(header);
}
void RunServer()
{
if (serverListener != null)
{
serverListener.Start();
Console.WriteLine("Server started");
while (true)
{
try
{
if (!clientSocket.Connected)
{
Console.WriteLine("Waiting for a connection...");
clientSocket = serverListener.AcceptTcpClient();
Console.WriteLine("Connected");
}
NetworkStream networkStream = clientSocket.GetStream();
byte[] bytesFrom = new byte[10240];
networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize);
string dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
dataFromClient = dataFromClient.TrimEnd('\0');
Console.WriteLine("Data From Client {0}:\n{1}\n", ((IPEndPoint)clientSocket.Client.RemoteEndPoint).Address.ToString(), dataFromClient);
// string serverResponse = "Data Received";
HeaderMsg header = new HeaderMsg();
header.messageID = sequence++;
header.messageFrom = "server";
header.messageTO = ((IPEndPoint)clientSocket.Client.RemoteEndPoint).Address.ToString();
header.messageSize = 0;
byte[] sendBytes = Utility.GetBytesFromStruct(header);
networkStream.Write(sendBytes, 0, sendBytes.Length);
networkStream.Flush();
Console.WriteLine("Response Sent");
}
catch (System.Exception ex)
{
Console.WriteLine("Exception: {0}", ex.Message);
clientSocket.Close();
}
}
}
else
{
Console.WriteLine("Server error");
stopServer.Set();
return;
}
}// run server
void RunServer()
{
if (serverListener!=null)
{
serverListener.Start();
Console.WriteLine("Server started");
while (true)
{
try
{
if (!clientSocket.Connected)
{
Console.WriteLine("Waiting for a connection...");
clientSocket = serverListener.AcceptTcpClient();
Console.WriteLine("Connected");
}
NetworkStream networkStream = clientSocket.GetStream();
byte[] bytesFrom = new byte[10240];
networkStream.Read(bytesFrom, 0, (int)clientSocket.ReceiveBufferSize);
string dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom);
dataFromClient = dataFromClient.TrimEnd('\0');
Console.WriteLine("Data From Client {0}:\n{1}\n", ((IPEndPoint)clientSocket.Client.RemoteEndPoint).Address.ToString(), dataFromClient);
// string serverResponse = "Data Received";
HeaderMsg header = new HeaderMsg();
header.messageID = sequence++;
header.messageFrom = "server";
header.messageTO = ((IPEndPoint)clientSocket.Client.RemoteEndPoint).Address.ToString();
header.messageSize = 0;
byte[] sendBytes = Utility.GetBytesFromStruct(header);
networkStream.Write(sendBytes, 0, sendBytes.Length);
networkStream.Flush();
Console.WriteLine("Response Sent");
}
catch (System.Exception ex)
{
Console.WriteLine("Exception: {0}", ex.Message);
clientSocket.Close();
}
}
}
else
{
Console.WriteLine("Server error");
stopServer.Set();
return;
}
}
