Tntpub implements a publish subcribe pattern. A client can subscribe to
a topic, which is just a string and will receive any messages sent to
that topic by other clients (or itself). The server is very simple and
needs no configuration since topics exist if there are subscribers to
that. Messages sent to topics, where nobody id subscribed to will just
be discarded.

The server as well as client are implemented in a library. It is simple
to implement a own server with additional features like recovery or
integrate the server in own applications. It runs in the cxxtools event
loop.

The main features are: * only TCP/IP communication * send and receive
cxxtools serializable objects * no configuration * no distinction
between publisher and subscriber - every client may subscribe and can
send messages to topics.