Pdpersistd (Process-data persistence daemon) is a service written in C++ that keeps the values of parameters and signals of an EtherLab realtime process persistent beyond application reloads. Since it uses an SQLite3 database, it can also be used as a parameter logging system.
The service is published under terms and conditions of the GNU General Public License (GPL) in version 3 (or any later version).
hg clone http://hg.code.sf.net/p/pdpersistd/code pdpersistd-hg
The contents of the repository can also be viewed online.