- tcp_close_socket(+SocketId) is det
- Closes the indicated socket, making SocketId invalid. Normally,
sockets are closed by closing both stream handles returned by
open_socket/3. There are two cases where tcp_close_socket/1 is
used because there are no stream-handles:
- If, after tcp_accept/3, the server uses fork/1 to handle the
client in a sub-process. In this case the accepted socket is
not longer needed from the main server and must be discarded
using tcp_close_socket/1.
- If, after discovering the connecting client with
tcp_accept/3, the server does not want to accept the
connection, it should discard the accepted socket
immediately using tcp_close_socket/1.
