func loadLease(reader engine.Reader, rangeID roachpb.RangeID) (*roachpb.Lease, error) {
lease := &roachpb.Lease{}
_, err := engine.MVCCGetProto(context.Background(), reader,
keys.RangeLeaderLeaseKey(rangeID), hlc.ZeroTimestamp,
true, nil, lease)
if err != nil {
return nil, err
}
return lease, nil
}
func setLease(
eng engine.ReadWriter,
ms *enginepb.MVCCStats,
rangeID roachpb.RangeID,
lease *roachpb.Lease, // TODO(tschottdorf): better if this is never nil
) error {
if lease == nil {
return nil
}
return engine.MVCCPutProto(
context.Background(), eng, ms,
keys.RangeLeaderLeaseKey(rangeID),
hlc.ZeroTimestamp, nil, lease)
}