internal void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave)ar.AsyncState;
try
{
// use Socket async API for compact framework compat
Socket socket = null;
lock (_serverLock)
socket = Server.Server.EndAccept(ar);
TcpClient client = new TcpClient {
Client = socket
};
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed += (sender, eventArgs) => RemoveMaster(eventArgs.EndPoint);
lock (_mastersLock)
_masters.Add(client.Client.RemoteEndPoint.ToString(), masterConnection);
_logger.Debug("Accept completed.");
// Accept another client
// use Socket async API for compact framework compat
lock (_serverLock)
Server.Server.BeginAccept(AcceptCompleted, slave);
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
private static void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave)ar.AsyncState;
try
{
try
{
// use Socket async API for compact framework compat
Socket socket = null;
lock (slave._serverLock)
{
if (slave._server == null) // Checks for disposal to an otherwise unnecessary exception (which is slow and hinders debugging).
{
return;
}
try
{
socket = slave.Server.Server.EndAccept(ar);
}
catch (Exception) { }
}
TcpClient client = new TcpClient {
Client = socket
};
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed += slave.OnMasterConnectionClosedHandler;
slave._masters.TryAdd(client.Client.RemoteEndPoint.ToString(), masterConnection);
Trace.WriteLine(string.Format("Accept completed."));
}
catch (IOException ex)
{
// Abandon the connection attempt and continue to accepting the next connection.
Trace.WriteLine(string.Format("Accept failed: " + ex.Message));
}
// Accept another client
// use Socket async API for compact framework compat
lock (slave._serverLock)
{
slave.Server.Server.BeginAccept(state => AcceptCompleted(state), slave);
}
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
/// <summary>
/// Start slave listening for requests.
/// </summary>
public override async Task ListenAsync()
{
Debug.WriteLine("Start Modbus Tcp Server.");
// TODO: add state {stoped, listening} and check it before starting
Server.Start();
while (true)
{
TcpClient client = await Server.AcceptTcpClientAsync().ConfigureAwait(false);
var masterConnection = new ModbusMasterTcpConnection(client, this);
masterConnection.ModbusMasterTcpConnectionClosed += OnMasterConnectionClosedHandler;
_masters.TryAdd(client.Client.RemoteEndPoint.ToString(), masterConnection);
}
}
internal void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave)ar.AsyncState;
try
{
// use Socket async API for compact framework compat
Socket socket = null;
lock (_serverLock)
{
if (_server == null) // Checks for disposal to an otherwise unnecessary exception (which is slow and hinders debugging).
{
return;
}
socket = Server.Server.EndAccept(ar);
}
TcpClient client = new TcpClient {
Client = socket
};
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed +=
(sender, eventArgs) => RemoveMaster(eventArgs.EndPoint);
lock (_mastersLock)
_masters.Add(client.Client.RemoteEndPoint.ToString(), masterConnection);
Debug.WriteLine("Accept completed.");
// Accept another client
// use Socket async API for compact framework compat
lock (_serverLock)
Server.Server.BeginAccept(AcceptCompleted, slave);
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
internal void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave) ar.AsyncState;
try
{
TcpClient client = _server.EndAcceptTcpClient(ar);
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed += (sender, eventArgs) => RemoveMaster(eventArgs.EndPoint);
lock (_mastersLock)
_masters.Add(client.Client.RemoteEndPoint.ToString(), masterConnection);
_logger.Debug("Accept completed.");
// Accept another client
_server.BeginAcceptTcpClient(AcceptCompleted, slave);
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
internal void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave)ar.AsyncState;
try
{
TcpClient client = _server.EndAcceptTcpClient(ar);
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed += (sender, eventArgs) => RemoveMaster(eventArgs.EndPoint);
lock (_mastersLock)
_masters.Add(client.Client.RemoteEndPoint.ToString(), masterConnection);
_logger.Debug("Accept completed.");
// Accept another client
_server.BeginAcceptTcpClient(AcceptCompleted, slave);
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
internal void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave) ar.AsyncState;
try
{
// use Socket async API for compact framework compat
Socket socket = null;
lock (_serverLock)
socket = Server.Server.EndAccept(ar);
TcpClient client = new TcpClient { Client = socket };
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed += (sender, eventArgs) => RemoveMaster(eventArgs.EndPoint);
lock (_mastersLock)
_masters.Add(client.Client.RemoteEndPoint.ToString(), masterConnection);
_logger.Debug("Accept completed.");
// Accept another client
// use Socket async API for compact framework compat
lock (_serverLock)
Server.Server.BeginAccept(AcceptCompleted, slave);
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
internal void AcceptCompleted(IAsyncResult ar)
{
ModbusTcpSlave slave = (ModbusTcpSlave) ar.AsyncState;
try
{
try
{
// use Socket async API for compact framework compat
Socket socket = null;
lock (_serverLock)
{
if (_server == null) // Checks for disposal to an otherwise unnecessary exception (which is slow and hinders debugging).
return;
socket = Server.Server.EndAccept(ar);
}
TcpClient client = new TcpClient {Client = socket};
var masterConnection = new ModbusMasterTcpConnection(client, slave);
masterConnection.ModbusMasterTcpConnectionClosed += OnMasterConnectionClosedHandler;
_masters.TryAdd(client.Client.RemoteEndPoint.ToString(), masterConnection);
Debug.WriteLine("Accept completed.");
}
catch (IOException ex)
{
// Abandon the connection attempt and continue to accepting the next connection.
Debug.WriteLine("Accept failed: " + ex.Message);
}
// Accept another client
// use Socket async API for compact framework compat
lock (_serverLock)
Server.Server.BeginAccept(AcceptCompleted, slave);
}
catch (ObjectDisposedException)
{
// this happens when the server stops
}
}
