* @param dht An existing and valid DHT service handle. CANNOT be NULL.
* @param priv our private key, must remain valid until the announcement is cancelled
* @param regex Regular expression to announce.
* @param compression How many characters per edge can we squeeze?
* @param stats Optional statistics handle to report usage. Can be NULL.
* @param dht An existing and valid DHT service handle. CANNOT be NULL.
* @param priv our private key, must remain valid until the announcement is cancelled
* @param regex Regular expression to announce.
* @param compression How many characters per edge can we squeeze?
* @param stats Optional statistics handle to report usage. Can be NULL.