public override void Stop()
{
_started = false;
// Database is no longer available for use
// Deny beginning new transactions
_databaseAvailabilityGuard.require(_availabilityRequirement);
// Await transactions stopped
AwaitTransactionsClosedWithinTimeout();
}
private void RaiseAvailabilityGuard(AvailabilityRequirement requirement)
{
// it is possible for the local database to be created and stopped right after that to perform a store copy
// in this case we need to impose new requirement and drop the old one
_availabilityGuard.require(requirement);
if (_currentRequirement != null)
{
DropAvailabilityGuard();
}
_currentRequirement = requirement;
}