27 lines
863 B
Go
27 lines
863 B
Go
// Copyright 2011 Google Inc. All rights reserved.
|
||
// Use of this source code is governed by a BSD-style
|
||
// license that can be found in the LICENSE file.
|
||
|
||
package uuid
|
||
|
||
import guuid "github.com/google/uuid"
|
||
|
||
// Random returns a Random (Version 4) UUID or panics.
|
||
//
|
||
// The strength of the UUIDs is based on the strength of the crypto/rand
|
||
// package.
|
||
//
|
||
// A note about uniqueness derived from the UUID Wikipedia entry:
|
||
//
|
||
// Randomly generated UUIDs have 122 random bits. One's annual risk of being
|
||
// hit by a meteorite is estimated to be one chance in 17 billion, that
|
||
// means the probability is about 0.00000000006 (6 × 10−11),
|
||
// equivalent to the odds of creating a few tens of trillions of UUIDs in a
|
||
// year and having one duplicate.
|
||
func NewRandom() UUID {
|
||
if gu, err := guuid.NewRandom(); err == nil {
|
||
return UUID(gu[:])
|
||
}
|
||
return nil
|
||
}
|