ring index overflow

[tigeriscat]

Ring index overflow.

Calling Add to exceed MaxInt, the system will panic

Original code
func (r *Ring) Add(v interface{}) {
r.lock.Lock()
defer r.lock.Unlock()

r.elements[r.index%len(r.elements)] = v
r.index++

}

Suggested fixes

func (r *Ring) Add(v interface{}) {
r.lock.Lock()
defer r.lock.Unlock()

r.elements[r.index%len(r.elements)] = v
r.index++

if r.index/len(r.elements) >= 2 {
	r.index = r.index - len(r.elements)
}

}

[github-actions]

This issue is stale because it has been open for 30 days with no activity.