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.LocalRangeLastVerificationTimestampSuffixDeprecated):
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
}
