utils

func CreateSegmentFile ¶

func CreateSegmentFile(directory string, segmentId int) (*os.File, error)

creates new segment file with given id in provided directory and returns it

func FindLastSegmentId ¶

func FindLastSegmentId(files []string) (uint, error)

finds last segment id in the list of files

func MustMarshal ¶

func MustMarshal(entry *types.WAL_Entry) []byte

func MustUnmarshal ¶

func MustUnmarshal(data []byte, entry *types.WAL_Entry)

func UnmarshalAndVerifyEntry ¶

func UnmarshalAndVerifyEntry(data []byte) (*types.WAL_Entry, error)

unmarshals the given data into wal entry also verifies CRC32, returns only if it is valid