public WebSocketServer(string location, bool supportDualStack = true)
{
var uri = new Uri(location);
Port = uri.Port;
Location = location;
SupportDualStack = supportDualStack;
_locationIP = ParseIPAddress(uri);
_scheme = uri.Scheme;
var socket = new Socket(_locationIP.AddressFamily, SocketType.Stream, ProtocolType.IP);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, 1);
if (SupportDualStack)
{
if (!FleckRuntime.IsRunningOnMono() && FleckRuntime.IsRunningOnWindows())
{
socket.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
}
}
ListenerSocket = new SocketWrapper(socket);
SupportedSubProtocols = new string[0];
}
public static void SetKeepAlive(this Socket socket, UInt32 keepAliveInterval, UInt32 retryInterval)
{
if (FleckRuntime.IsRunningOnWindows())
{
int size = sizeof(UInt32);
UInt32 on = 1;
byte[] inArray = new byte[size * 3];
Array.Copy(BitConverter.GetBytes(on), 0, inArray, 0, size);
Array.Copy(BitConverter.GetBytes(keepAliveInterval), 0, inArray, size, size);
Array.Copy(BitConverter.GetBytes(retryInterval), 0, inArray, size * 2, size);
socket.IOControl(IOControlCode.KeepAliveValues, inArray, null);
}
}
public SocketWrapper(Socket socket)
{
_tokenSource = new CancellationTokenSource();
_taskFactory = new TaskFactory(_tokenSource.Token);
_socket = socket;
if (_socket.Connected)
{
_stream = new NetworkStream(_socket);
}
// The tcp keepalive default values on most systems
// are huge (~7200s). Set them to something more reasonable.
if (FleckRuntime.IsRunningOnWindows())
{
SetKeepAlive(socket, KeepAliveInterval, RetryInterval);
}
}
