// This starts the flow of data, and it is quite an intense multi step process
// So I will label it in sequential order
public unsafe void Start()
{
_queue.DispatchAsync(() =>
{
if (_client != null)
{
WriteLog.To.Sync.W(Tag, "Ignoring duplicate call to Start...");
return;
}
Native.c4socket_retain(_socket);
WriteLog.To.Sync.I(Tag, "c4Socket is retained, and reachability status monitor is starting.");
_readWriteCancellationTokenSource = new CancellationTokenSource();
_writeQueue = new BlockingCollection <byte[]>();
_receivePause = new ManualResetEventSlim(true);
_reachability.StatusChanged += ReachabilityChanged;
_reachability.Start();
// STEP 1: Create the TcpClient, which is responsible for negotiating
// the socket connection between here and the server
try {
// ReSharper disable once UseObjectOrCollectionInitializer
_client = new TcpClient(AddressFamily.InterNetworkV6);
} catch (Exception e) {
DidClose(e);
return;
}
try {
_client.Client.DualMode = true;
} catch (ArgumentException) {
WriteLog.To.Sync.I(Tag, "IPv4/IPv6 dual mode not supported on this device, falling back to IPv4");
_client = new TcpClient(AddressFamily.InterNetwork);
}
// STEP 2.5: The IProxy interface will detect a system wide proxy that is set
// And if it is, it will return an IWebProxy object to use
// Sending "CONNECT" request if IWebProxy object is not null
IProxy proxy = Service.GetInstance <IProxy>();
try {
if (_client != null && !_client.Connected)
{
if (proxy != null)
{
connectProxyAsync(proxy, "proxyUser", "proxyPassword");
}
}
} catch { }
if (proxy == null)
{
OpenConnectionToRemote();
}
});
}
private void StartReachabilityObserver()
{
if (_reachability != null)
{
return;
}
_reachability = Service.GetInstance <IReachability>() ?? new Reachability();
_reachability.StatusChanged += ReachabilityChanged;
_reachability.Start();
}
public unsafe WebSocketWrapper(Uri url, C4Socket *socket, [NotNull] ReplicatorOptionsDictionary options)
{
_socket = socket;
_logic = new HTTPLogic(url);
_options = options;
_reachability.StatusChanged += ReachabilityChanged;
_reachability.Url = url;
_reachability.Start();
SetupAuth();
}
private void StartReachabilityObserver()
{
if (_reachability != null)
{
return;
}
var remoteUrl = (Config.Target as URLEndpoint)?.Url;
if (remoteUrl == null)
{
return;
}
_reachability = Service.GetInstance <IReachability>() ?? new Reachability();
_reachability.StatusChanged += ReachabilityChanged;
_reachability.Url = remoteUrl;
_reachability.Start();
}