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fix golint issues in core/mathx (#498)

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This commit is contained in:
Kevin Wan
2021-02-21 20:47:01 +08:00
committed by GitHub
parent 334ee4213f
commit 8872d7cbd3
4 changed files with 10 additions and 0 deletions
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4
core/mathx/unstable.go
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@@ -6,12 +6,14 @@ import (
"time"
)
// A Unstable is used to generate random value around the mean value base on given deviation.
type Unstable struct {
deviation float64
r *rand.Rand
lock *sync.Mutex
}
// NewUnstable returns a Unstable.
func NewUnstable(deviation float64) Unstable {
if deviation < 0 {
deviation = 0
@@ -26,6 +28,7 @@ func NewUnstable(deviation float64) Unstable {
}
}
// AroundDuration returns a random duration with given base and deviation.
func (u Unstable) AroundDuration(base time.Duration) time.Duration {
u.lock.Lock()
val := time.Duration((1 + u.deviation - 2*u.deviation*u.r.Float64()) * float64(base))
@@ -33,6 +36,7 @@ func (u Unstable) AroundDuration(base time.Duration) time.Duration {
return val
}
// AroundInt returns a randome int64 with given base and deviation.
func (u Unstable) AroundInt(base int64) int64 {
u.lock.Lock()
val := int64((1 + u.deviation - 2*u.deviation*u.r.Float64()) * float64(base))