private void OnConnected(object sender, SocketAsyncEventArgs args)
{
if (state == NetworkGatewayState.CONNECTING)
{
if (args.SocketError == SocketError.Success)
{
logger.info("connection successfully");
state = NetworkGatewayState.ESTABLISHED;
sendCounter = 0;
connectTaskCompletionSource.TrySetResult(null);
var handler = ConnectedEvent;
if (handler != null)
{
handler();
}
ReadAsync();
}
else
{
logger.info("connection error: {0}", args.SocketError);
TryReconnect();
}
}
else
{
throw new InvalidOperationException("onConnected in not-INIT state");
}
}
public TransportGateway() {
socket = null;
state = NetworkGatewayState.INIT;
//inputStream = new MemoryStream(16000);
input = new CborInputMoveBuffer(512 * 1024);
input.InputEvent += CheckInput;
}
public TransportGateway()
{
socket = null;
state = NetworkGatewayState.INIT;
//inputStream = new MemoryStream(16000);
input = new CborInputMoveBuffer(512 * 1024);
input.InputEvent += CheckInput;
}
public void Dispose()
{
logger.info("transport connection closed");
state = NetworkGatewayState.DISPOSED;
try {
socket.Close();
} catch (Exception e) {
}
}
private void TryReconnect() {
if(state == NetworkGatewayState.DISPOSED) {
connectTaskCompletionSource.TrySetResult(null);
return;
}
if(connectRetries == 0) {
logger.info("connect failed");
connectTaskCompletionSource.TrySetException(new TransportConnectException());
return;
}
logger.info("reconnect, remaining retries: {0}", connectRetries);
state = NetworkGatewayState.INIT;
connectRetries--;
endpointIndex = (endpointIndex + 1)%dc.Endpoints.Count;
Task.Delay(1000).ContinueWith(delegate { Connect(dc); });
}
private void TryReconnect()
{
if (state == NetworkGatewayState.DISPOSED)
{
connectTaskCompletionSource.TrySetResult(null);
return;
}
if (connectRetries == 0)
{
logger.info("connect failed");
connectTaskCompletionSource.TrySetException(new TransportConnectException());
return;
}
logger.info("reconnect, remaining retries: {0}", connectRetries);
state = NetworkGatewayState.INIT;
connectRetries--;
endpointIndex = (endpointIndex + 1) % dc.Endpoints.Count;
Task.Delay(1000).ContinueWith(delegate { Connect(dc); });
}
private bool Connect(TelegramDC dc)
{
if (state == NetworkGatewayState.INIT)
{
logger.info("connecing to {0}:{1}", dc.Endpoints[endpointIndex].Host, dc.Endpoints[endpointIndex].Port);
this.dc = dc;
var args = new SocketAsyncEventArgs();
args.RemoteEndPoint = new DnsEndPoint(dc.Endpoints[endpointIndex].Host, dc.Endpoints[endpointIndex].Port);
args.Completed += OnConnected;
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
state = NetworkGatewayState.CONNECTING;
bool async = socket.ConnectAsync(args);
if (!async)
{
OnConnected(this, args);
}
return(true);
}
throw new InvalidOperationException("connect in not INIT state");
}
private bool Connect(TelegramDC dc) {
if (state == NetworkGatewayState.INIT) {
logger.info("connecing to {0}:{1}", dc.Endpoints[endpointIndex].Host, dc.Endpoints[endpointIndex].Port);
this.dc = dc;
var args = new SocketAsyncEventArgs();
args.RemoteEndPoint = new DnsEndPoint(dc.Endpoints[endpointIndex].Host, dc.Endpoints[endpointIndex].Port);
args.Completed += OnConnected;
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
state = NetworkGatewayState.CONNECTING;
bool async = socket.ConnectAsync(args);
if (!async) {
OnConnected(this, args);
}
return true;
}
throw new InvalidOperationException("connect in not INIT state");
}
public void Dispose() {
logger.info("transport connection closed");
state = NetworkGatewayState.DISPOSED;
try {
socket.Close();
} catch(Exception e) {
}
}
private void OnConnected(object sender, SocketAsyncEventArgs args) {
if (state == NetworkGatewayState.CONNECTING) {
if (args.SocketError == SocketError.Success) {
logger.info("connection successfully");
state = NetworkGatewayState.ESTABLISHED;
sendCounter = 0;
connectTaskCompletionSource.TrySetResult(null);
var handler = ConnectedEvent;
if(handler != null) handler();
ReadAsync();
} else {
logger.info("connection error: {0}", args.SocketError);
TryReconnect();
}
} else {
throw new InvalidOperationException("onConnected in not-INIT state");
}
}
