func (s *store) delete(key []byte, rev revision) {
mainrev := s.currentRev.main + 1
ibytes := newRevBytes()
revToBytes(revision{main: mainrev, sub: s.currentRev.sub}, ibytes)
ibytes = appendMarkTombstone(ibytes)
kv := mvccpb.KeyValue{
Key: key,
}
d, err := kv.Marshal()
if err != nil {
plog.Fatalf("cannot marshal event: %v", err)
}
s.tx.UnsafeSeqPut(keyBucketName, ibytes, d)
err = s.kvindex.Tombstone(key, revision{main: mainrev, sub: s.currentRev.sub})
if err != nil {
plog.Fatalf("cannot tombstone an existing key (%s): %v", string(key), err)
}
s.changes = append(s.changes, kv)
s.currentRev.sub += 1
ibytes = newRevBytes()
revToBytes(rev, ibytes)
_, vs := s.tx.UnsafeRange(keyBucketName, ibytes, nil, 0)
kv.Reset()
if err = kv.Unmarshal(vs[0]); err != nil {
plog.Fatalf("cannot unmarshal value: %v", err)
}
if lease.LeaseID(kv.Lease) != lease.NoLease {
err = s.le.Detach(lease.LeaseID(kv.Lease), []lease.LeaseItem{{Key: string(kv.Key)}})
if err != nil {
plog.Fatalf("cannot detach %v", err)
}
}
}
