~ $ time bm_qtcontacts_trackerplugin_batchsaving 500 250 1
Going to add 500 contacts with full details
libqtcontacts-tracker: initializing libqtcontacts-tracker 4.10.7-3+0m6
libqtcontacts-tracker: classhierarchy.cpp:300: Must rebuild class cache, waiting for mutex
libqtcontacts-tracker: writing /home/user/.cache/contacts/rdf-classes.db
Contact manager created: "qtcontacts:tracker:"
Perform batch add: 250 contacts
Generating contacts
Before start
libqtcontacts-tracker: classhierarchy.cpp:300: Must rebuild class cache, waiting for mutex
libqtcontacts-tracker: writing /home/user/.cache/contacts/rdf-classes.db
void Eng::onStateChanged(QtMobility::QContactAbstractRequest::State) state changed!
void Eng::onStateChanged(QtMobility::QContactAbstractRequest::State) changed state: Active
libqtcontacts-tracker: engine.cpp:1397:
=============================================================================
WARNING /!\
=============================================================================
NEVER EVER CALL THIS FUNCTION FROM PRODUCTION CODE!!!

QContactAbstractRequest::waitForFinished(), respectively
QContactManagerEngine::waitForRequestFinished() must spin your
application's event loop. Doing so will cause HAVOC AND PAIN for
any non-trivial program.

So please refactor your asynchronious code, or use the synchronious
API if blocking your application is acceptable.

WE MEAN IT!!!
=============================================================================