consul/lib/rand.go

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370 B
Go
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package lib
import (
"math/rand"
"sync"
"time"
)
var (
once sync.Once
)
// SeedMathRand provides weak, but guaranteed seeding, which is better than
// running with Go's default seed of 1. A call to SeedMathRand() is expected
// to be called via init(), but never a second time.
func SeedMathRand() {
once.Do(func() { rand.Seed(time.Now().UTC().UnixNano()) })
}