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fix ring buffer (#1606)

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fztcjjl 2020-05-07 17:45:48 +08:00 committed by GitHub
parent 5387f73b5d
commit 30dc29e17f
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1 changed files with 3 additions and 8 deletions
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11
util/ring/buffer.go
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@ -67,17 +67,12 @@ func (b *Buffer) Get(n int) []*Entry {
defer b.RUnlock() defer b.RUnlock()
// reset any invalid values // reset any invalid values
if n > b.size || n < 0 { if n > len(b.vals) || n < 0 {
n = b.size n = len(b.vals)
} }
// create a delta // create a delta
delta := b.size - n delta := len(b.vals) - n
// if all the values are less than delta
if len(b.vals) < delta {
return b.vals
}
// return the delta set // return the delta set
return b.vals[delta:] return b.vals[delta:]