util

Documentation

Index

• Variables
• func GUID() string
• func HashString(str string) string
• func IsGroupUID(uid string) bool
• func Min[T Integer](a, b T) T
• func ParseSession(s string) (tp messagev1.SessionType, from, to types.ID, err error)
• func RandIntn(n int) int
• func Session(tp messagev1.SessionType, from, to types.ID) string
• func Sha256(data []byte) []byte
• func UUID() string
• type Integer
• type Set
  • func NewSet[T comparable]() *Set[T]
  • func (s *Set[T]) Add(elem ...T)
  • func (s *Set[T]) Contains(elem T) bool
  • func (s *Set[T]) Remove(elem ...T)

Variables

var (
	// ErrInvalidSessionType invalid session type
	ErrInvalidSessionType = fmt.Errorf("invalid session type")
	// ErrInvalidSessionIDLength invalid session id length
	ErrInvalidSessionIDLength = fmt.Errorf("invalid session id length")
)

Functions

func GUID

func GUID() string

func HashString

func HashString(str string) string

func IsGroupUID

func IsGroupUID(uid string) bool

func Min

func Min[T Integer](a, b T) T

func ParseSession

func ParseSession(s string) (tp messagev1.SessionType, from, to types.ID, err error)

func RandIntn

func RandIntn(n int) int

RandIntn returns a random number in [0, n).

func Session

func Session(tp messagev1.SessionType, from, to types.ID) string

Session generate session id

switch tpye {
case messagev1.SessionType_SingleChat:
	001fromUIDtoUID
case messagev1.SessionType_GroupChat:
	010groupID00000000
}

func Sha256

func Sha256(data []byte) []byte

func UUID

func UUID() string

UUID returns a short version of UUID v4.

Types

type Integer

type Integer interface {
	~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~int | ~int8 | ~int16 | ~int32 | ~int64
}

type Set

type Set[T comparable] struct {
	// contains filtered or unexported fields
}

func NewSet

func NewSet[T comparable]() *Set[T]

func (*Set[T]) Add

func (s *Set[T]) Add(elem ...T)

func (*Set[T]) Contains

func (s *Set[T]) Contains(elem T) bool

func (*Set[T]) Remove

func (s *Set[T]) Remove(elem ...T)