func maybeUnmarshalInline(v []byte, dest proto.Message) error { var meta enginepb.MVCCMetadata if err := meta.Unmarshal(v); err != nil { return err } value := roachpb.Value{ RawBytes: meta.RawBytes, } return value.GetProto(dest) }
func tryRangeIDKey(kv engine.MVCCKeyValue) (string, error) { if kv.Key.Timestamp != hlc.ZeroTimestamp { return "", fmt.Errorf("range ID keys shouldn't have timestamps: %s", kv.Key) } _, _, suffix, _, err := keys.DecodeRangeIDKey(kv.Key.Key) if err != nil { return "", err } // All range ID keys are stored inline on the metadata. var meta enginepb.MVCCMetadata if err := meta.Unmarshal(kv.Value); err != nil { return "", err } value := roachpb.Value{RawBytes: meta.RawBytes} // Values encoded as protobufs set msg and continue outside the // switch. Other types are handled inside the switch and return. var msg proto.Message switch { case bytes.Equal(suffix, keys.LocalLeaseAppliedIndexSuffix): fallthrough case bytes.Equal(suffix, keys.LocalRaftAppliedIndexSuffix): i, err := value.GetInt() if err != nil { return "", err } return strconv.FormatInt(i, 10), nil case bytes.Equal(suffix, keys.LocalRangeFrozenStatusSuffix): b, err := value.GetBool() if err != nil { return "", err } return strconv.FormatBool(b), nil case bytes.Equal(suffix, keys.LocalAbortCacheSuffix): msg = &roachpb.AbortCacheEntry{} case bytes.Equal(suffix, keys.LocalRangeLastGCSuffix): msg = &hlc.Timestamp{} case bytes.Equal(suffix, keys.LocalRaftTombstoneSuffix): msg = &roachpb.RaftTombstone{} case bytes.Equal(suffix, keys.LocalRaftTruncatedStateSuffix): msg = &roachpb.RaftTruncatedState{} case bytes.Equal(suffix, keys.LocalRangeLeaseSuffix): msg = &roachpb.Lease{} case bytes.Equal(suffix, keys.LocalRangeStatsSuffix): msg = &enginepb.MVCCStats{} case bytes.Equal(suffix, keys.LocalRaftHardStateSuffix): msg = &raftpb.HardState{} case bytes.Equal(suffix, keys.LocalRaftLastIndexSuffix): i, err := value.GetInt() if err != nil { return "", err } return strconv.FormatInt(i, 10), nil case bytes.Equal(suffix, keys.LocalRangeLastVerificationTimestampSuffix): msg = &hlc.Timestamp{} case bytes.Equal(suffix, keys.LocalRangeLastReplicaGCTimestampSuffix): msg = &hlc.Timestamp{} default: return "", fmt.Errorf("unknown raft id key %s", suffix) } if err := value.GetProto(msg); err != nil { return "", err } return msg.String(), nil }