- petra_wait_for_sync_run()
Returns 1, if PETRA is in the state "Betrieb->Experimente".
If not, Online waits for PETRA to enter this state. The
wait procedure may be interrupted by "STOP" (online -tki) or
by pressing the space bar. In this case the function
returns 0.
If the wait state ends with "Betrieb->Experimente", Online waits
for TIME_HEATUP (or 30) seconds before it returns 1.
e.g.:
* = petra_wait_for_sync_run()
