util

func Compare1DInt64 ¶

func Compare1DInt64(i1, i2 []int64) bool

func Compare1DUInt64 ¶

func Compare1DUInt64(i1, i2 []uint64) bool

func Compare2DInt64 ¶

func Compare2DInt64(i1, i2 [][]int64) bool

func Compare2DUInt64 ¶

func Compare2DUInt64(i1, i2 [][]uint64) bool

func Copy1DInt64 ¶

func Copy1DInt64(i []int64) []int64

func Copy1DUInt64 ¶

func Copy1DUInt64(i []uint64) []uint64

func Copy2DInt64 ¶

func Copy2DInt64(i [][]int64) [][]int64

func Copy2DUInt64 ¶

func Copy2DUInt64(i [][]uint64) [][]uint64

func FileExists ¶

func FileExists(path string) bool

FileExists checks if file exists

func FormatDuration ¶

func FormatDuration(d time.Duration) string

FormatDuration formats a duration to a string.

func IndexOfInt ¶

func IndexOfInt(a []int, element int) int

IndexOfInt returns the index of the first element of 'column' that matches 'element' returns -1 if no element matches

func IndexOfInt64 ¶

func IndexOfInt64(column []int64, element int64) int

IndexOfInt64 returns the index of the first element of 'column' that matches 'element' returns -1 if no element matches

func InsertFileBlock ¶

func InsertFileBlock(file *os.File, offset, length int64) error

InsertFileBlock uses fallocate syscall to insert one or multiple empty blocks in the middle of a file, pushing back the contents that follow

func IsSubset ¶

func IsSubset(a map[string]string, b map[string]string) bool

IsSubset checks if map a is a subset of map b

func ParseDuration ¶

func ParseDuration(s string) (time.Duration, error)

ParseDuration parses a time duration from a string. This is needed instead of time.ParseDuration because this will support the full syntax that InfluxQL supports for specifying durations including weeks and days.

func ReadBlock ¶

func ReadBlock(r io.Reader) (bytes.Buffer, error)

ReadBlock reads a 4k block from a reader and returns it as bytes.Buffer

func RoundDown ¶

func RoundDown(value, modulo int64) int64

RoundDown rounds down value to next multiple of modulo only works for positive integers

func RoundUp ¶

func RoundUp(value, modulo int64) int64

RoundUp rounds down value to next multiple of modulo only works for positive integers