Creates a new Socket from a native file descriptor or winsock SOCKET handle.
This reads all the settings from the file descriptor so that all properties should work. Note that the file descriptor will be set to non-blocking mode, independent on the blocking mode of the Socket.
On success, the returned Socket takes ownership of
fd. On failure, the
caller must close
Since GLib 2.46, it is no longer a fatal error to call this on a non-socket descriptor. Instead, a GError will be set with code g_io_error_failed
a native socket file descriptor.