void ReadSocket(IAsyncResult ir)
{
// get state
socketinfo si = (socketinfo)ir.AsyncState;
// get listener
Socket list = si.sock;
// get data from client
Socket client = (Socket)list.EndAccept(ir);
// get socket info for client
socketinfo csi = new socketinfo(client, si.buffer, si.startidx);
// get client name
string name = client.RemoteEndPoint.ToString();
// notify
debug("Connection from: " + name);
try
{
// receive data that arrives
client.BeginReceive(csi.buffer, csi.startidx, csi.freebuffersize, SocketFlags.None, new AsyncCallback(ReadData), csi);
}
catch (SocketException ex)
{
v(client.RemoteEndPoint + " " + ex.SocketErrorCode + ex.Message + ex.StackTrace);
}
// wait for new connection
list.BeginAccept(new AsyncCallback(ReadSocket), si);
}
void ReadSocket(IAsyncResult ir)
{
// get state
socketinfo si = (socketinfo)ir.AsyncState;
// get listener
Socket list = si.sock;
// get data from client
Socket client = (Socket)list.EndAccept(ir);
// get socket info for client
socketinfo csi = new socketinfo(client,si.buffer,si.startidx);
// get client name
string name = client.RemoteEndPoint.ToString();
// notify
debug("Connection from: " + name);
try
{
// receive data that arrives
client.BeginReceive(csi.buffer, csi.startidx, csi.freebuffersize, SocketFlags.None, new AsyncCallback(ReadData), csi);
}
catch (SocketException ex)
{
v(client.RemoteEndPoint + " " + ex.SocketErrorCode + ex.Message + ex.StackTrace);
}
// wait for new connection
list.BeginAccept(new AsyncCallback(ReadSocket), si);
}
void ReadData(IAsyncResult ir)
{
//get our state
socketinfo csi = (socketinfo)ir.AsyncState;
bool connected = csi.sock.Connected;
try
{
SocketError se = SocketError.Success;
// see how much data was read for this call
int len = csi.sock.EndReceive(ir, out se);
// receive any data
if (len > 0)
{
try
{
// get messages from data
v("srv data received: socket_status: " + se.ToString() + " data size: " + csi.freebuffersize + " data: " + HexToString(csi.buffer, len));
Message[] msgs = Message.gotmessages(ref csi.buffer, ref csi.startidx);
v("srv messages received: " + msgs.Length + " messages. ");
// handle messages
for (int i = 0; i < msgs.Length; i++)
{
Message m = msgs[i];
v("srv message# " + i + " size: " + m.ByteLength + " type: " + m.Type + " tag: " + m.Tag + " data: " + m.Content);
handle(m.Type, m.Content, csi.sock);
}
v("srv handled " + msgs.Length + " messages.");
}
catch (Exception ex)
{
debug(ex.Message + ex.StackTrace);
}
}
else
{
// implies possible disconnect, verify
connected = issocketconnected(csi.sock);
}
}
catch (SocketException ex)
{
debug(ex.SocketErrorCode + ex.Message + ex.StackTrace);
}
catch (Exception ex)
{
debug(ex.Message + ex.StackTrace);
}
try
{
// wait for more data to arrive
if (connected)
{
Thread.Sleep(100);
csi.sock.BeginReceive(csi.buffer, csi.startidx, csi.freebuffersize, SocketFlags.None, new AsyncCallback(ReadData), csi);
}
else
{
csi.sock.Close();
}
}
catch (SocketException ex)
{
// host likely disconnected
v("disconnected. msg: " + ex.SocketErrorCode + ex.Message + ex.StackTrace);
csi.sock.Close();
}
}
internal socketinfo(socketinfo si)
{
sock = si.sock;
startidx = si.startidx;
buffer = si.buffer;
}
internal socketinfo(socketinfo si)
{
sock = si.sock;
startidx = si.startidx;
buffer = si.buffer;
}
