Line data    Source code

       1             : // Copyright 2019 The LevelDB-Go and Pebble Authors. All rights reserved. Use
       2             : // of this source code is governed by a BSD-style license that can be found in
       3             : // the LICENSE file.
       4             : 
       5             : package randvar
       6             : 
       7             : import (
       8             :         "math/rand/v2"
       9             :         "time"
      10             : )
      11             : 
      12             : // NewRand creates a new random number generator seeded with the current time.
      13           0 : func NewRand() *rand.Rand {
      14           0 :         return rand.New(rand.NewPCG(0, uint64(time.Now().UnixNano())))
      15           0 : }
      16             : 
      17           0 : func ensureRand(rng *rand.Rand) *rand.Rand {
      18           0 :         if rng != nil {
      19           0 :                 return rng
      20           0 :         }
      21           0 :         return NewRand()
      22             : }