internal

Documentation

Index

• Variables
• func DirSize(path string) (int64, error)
• func Exists(path string) bool
• func FullVersion() string
• func GetDatafiles(path string) ([]string, error)
• func ParseIds(fns []string) ([]int, error)
• type Entry
  • func NewEntry(key, value []byte) Entry
• type Item

Variables

var (
	// Version release version
	Version = "0.0.1"

	// Commit will be overwritten automatically by the build system
	Commit = "HEAD"
)

Functions

func DirSize

func DirSize(path string) (int64, error)

DirSize returns the space occupied by the given `path` on disk on the current file system.

func Exists

func Exists(path string) bool

Exists returns `true` if the given `path` on the current file system exists

func FullVersion

func FullVersion() string

FullVersion returns the full version and commit hash

func GetDatafiles

func GetDatafiles(path string) ([]string, error)

GetDatafiles returns a list of all data files stored in the database path given by `path`. All datafiles are identified by the the glob `*.data` and the basename is represented by an monotomic increasing integer.

func ParseIds

func ParseIds(fns []string) ([]int, error)

ParseIds will parse a list of datafiles as returned by `GetDatafiles` and extract the id part and return a slice of ints.

Types

type Entry

type Entry struct {
	Checksum uint32
	Key      []byte
	Offset   int64
	Value    []byte
}

Entry represents a key/value in the database

func NewEntry

func NewEntry(key, value []byte) Entry

NewEntry creates a new `Entry` with the given `key` and `value`

type Item

type Item struct {
	FileID int   `json:"fileid"`
	Offset int64 `json:"offset"`
	Size   int64 `json:"size"`
}

Item represents the location of the value on disk. This is used by the internal Adaptive Radix Tree to hold an in-memory structure mapping keys to locations on disk of where the value(s) can be read from.