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| LICENSE | 5 years ago | |
| README.md | 5 years ago | |
| uuid.go | 5 years ago | |
README.md
fastuuid
-- import "github.com/rogpeppe/fastuuid"
Package fastuuid provides fast UUID generation of 192 bit universally unique identifiers. It does not provide formatting or parsing of the identifiers (it is assumed that a simple hexadecimal or base64 representation is sufficient, for which adequate functionality exists elsewhere).
Note that the generated UUIDs are not unguessable - each UUID generated from a Generator is adjacent to the previously generated UUID.
It ignores RFC 4122.
Usage
type Generator
type Generator struct {
}
Generator represents a UUID generator that generates UUIDs in sequence from a random starting point.
func MustNewGenerator
func MustNewGenerator() *Generator
MustNewGenerator is like NewGenerator but panics on failure.
func NewGenerator
func NewGenerator() (*Generator, error)
NewGenerator returns a new Generator. It can fail if the crypto/rand read fails.
func (*Generator) Next
func (g *Generator) Next() [24]byte
Next returns the next UUID from the generator. Only the first 8 bytes can differ from the previous UUID, so taking a slice of the first 16 bytes is sufficient to provide a somewhat less secure 128 bit UUID.
It is OK to call this method concurrently.