Class ByteForwarder.

The ByteForwarder class forwards all it reads to a sibling forwarder.

In effect, what one ByteForwarder reads, another reads, and what the other reads, the first one writes. Perfect for forwarding data between two sockets.

ByteForwarder is used as a helper for TlsServer.

ByteForwarder::ByteForwarder( int s, Connection * c )

Constructs an empty ByteForwarder on the file descriptor s, tied to c. When this ByteForwarder is closed, it closes c, too.

void ByteForwarder::setSibling( ByteForwarder * sibling )

Notifies this ByteForwarder (and its old and new siblings) that it is to write using sibling, or not write at all if sibling is null.