public async Task StartWithExistingSocket(StreamSocket socket)
{
try
{
Debug.WriteLine($"{nameof(PushClient)}: Starting with existing socket.");
Socket = socket;
if (_loopGroup != null)
{
await Shutdown().ConfigureAwait(false);
}
_loopGroup = new SingleThreadEventLoop();
var streamSocketChannel = new StreamSocketChannel(Socket);
streamSocketChannel.Pipeline.AddLast(new FbnsPacketEncoder(), new FbnsPacketDecoder(), this);
await _loopGroup.RegisterAsync(streamSocketChannel).ConfigureAwait(false);
await SendPing().ConfigureAwait(false);
await _context.Executor.Schedule(KeepAliveLoop, TimeSpan.FromSeconds(KEEP_ALIVE - 60));
}
catch (TaskCanceledException)
{
// pass
}
catch (Exception e)
{
#if !DEBUG
Crashes.TrackError(e);
#endif
await Shutdown().ConfigureAwait(false);
}
}
public async Task StartFresh()
{
try
{
Debug.WriteLine($"{nameof(PushClient)}: Starting fresh.");
if (_loopGroup != null)
{
await Shutdown();
}
_loopGroup = new SingleThreadEventLoop();
var connectPacket = new FbnsConnectPacket
{
Payload = await PayloadProcessor.BuildPayload(ConnectionData)
};
Socket = new StreamSocket();
Socket.Control.KeepAlive = true;
Socket.Control.NoDelay = true;
if (await RequestBackgroundAccess())
{
try
{
Socket.EnableTransferOwnership(_socketActivityTask.TaskId, SocketActivityConnectedStandbyAction.Wake);
}
catch (Exception connectedStandby)
{
Debug.WriteLine(connectedStandby);
Debug.WriteLine($"{nameof(PushClient)}: Connected standby not available.");
try
{
Socket.EnableTransferOwnership(_socketActivityTask.TaskId, SocketActivityConnectedStandbyAction.DoNotWake);
}
catch (Exception e)
{
#if !DEBUG
Crashes.TrackError(e);
#endif
Debug.WriteLine(e);
Debug.WriteLine($"{nameof(PushClient)}: Failed to transfer socket completely!");
await Shutdown().ConfigureAwait(false);
return;
}
}
}
await Socket.ConnectAsync(new HostName(HOST_NAME), "443", SocketProtectionLevel.Tls12);
var streamSocketChannel = new StreamSocketChannel(Socket);
streamSocketChannel.Pipeline.AddLast(new FbnsPacketEncoder(), new FbnsPacketDecoder(), this);
await _loopGroup.RegisterAsync(streamSocketChannel).ConfigureAwait(false);
await streamSocketChannel.WriteAndFlushAsync(connectPacket).ConfigureAwait(false);
}
catch (Exception e)
{
#if !DEBUG
Crashes.TrackError(e);
#endif
await Shutdown().ConfigureAwait(false);
}
}