Update tcpserver.go

[ngoyal16]

No description provided.

[maurice2k]

Thanks for the fix!
Looks like this completely fall out while optimizing. I think adding a .Add()/.Done() call in that function will probably hurt performance a lot. Maybe we can do something with activeConnections....
Or we just do the .Add() and .Done() calls only if activeConnections == 1 and 0 respectively?

[ngoyal16]

@maurice2k what if there are lots of activeConnection and someone call shutdown. how single Add and Done will work in that case.

[ngoyal16]

@maurice2k any update on same?

[Tochemey]

@maurice2k any update on this?