18 lines
529 B
Go
18 lines
529 B
Go
|
package missinggo
|
||
|
|
|
||
|
|
import (
|
||
|
|
"math/rand"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Returns random duration in the range [average-plusMinus,
|
||
|
|
// average+plusMinus]. Negative plusMinus will likely panic. Be aware that if
|
||
|
|
// plusMinus >= average, you may get a zero or negative Duration. The
|
||
|
|
// distribution function is unspecified, in case I find a more appropriate one
|
||
|
|
// in the future.
|
||
|
|
func JitterDuration(average, plusMinus time.Duration) (ret time.Duration) {
|
||
|
|
ret = average - plusMinus
|
||
|
|
ret += time.Duration(rand.Int63n(2*int64(plusMinus) + 1))
|
||
|
|
return
|
||
|
|
}
|