// New initializes a replication.LogReplicator using an already open kv.DB.
func New(db kv.DB, prefix []byte) (replication.LogReplicator, error) {
nextIndex := uint64(0)
iter := db.NewIterator(kv.BytesPrefix(prefix))
if hasEntries := iter.Last(); hasEntries {
nextIndex = binary.BigEndian.Uint64(iter.Key()[len(prefix):]) + 1
}
iter.Release()
if err := iter.Error(); err != nil {
return nil, err
}
leaderHintSet := make(chan bool, 1)
leaderHintSet <- true
return &kvLog{
db: db,
prefix: prefix,
nextIndex: nextIndex,
propose: make(chan replication.LogEntry, 100),
leaderHintSet: leaderHintSet,
waitCommitted: make(chan replication.LogEntry),
stop: make(chan struct{}),
stopped: make(chan struct{}),
}, nil
}
