Deadlock on Edge service index update

A deadlock has been found in the edge service cache :

• PTRealTimeUpdate process updates schedules ** ScheduledService marks the cache to false so that it's updated, and locks itself while doing it
• VDVClient process checks if new services are to be send, using the edge service cache ** The cache updates and locks itself, and a call the ScheduledService in doing so

If the two process touches the same data at the same time, a deadlock is produced.

Symptoms :

• A lot of threads are created rapidly, as the new VDV demands and BDSI import are all blocked by the VDVClient call
• Some service can still answer, but some just hang undefinitely