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refactor(share): use sync.Once instead of mutex for init #3625

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merged 1 commit into from
Aug 5, 2024
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refactor(share): use sync.Once instead of mutex for init #3625

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10 changes: 4 additions & 6 deletions share/empty.go
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Original file line number Diff line number Diff line change
Expand Up @@ -30,20 +30,18 @@ func EmptyBlockShares() []Share {
}

var (
emptyMu sync.Mutex
emptyOnce sync.Once
emptyBlockRoot *Root
emptyBlockEDS *rsmt2d.ExtendedDataSquare
emptyBlockShares []Share
)

// initEmpty enables lazy initialization for constant empty block data.
func initEmpty() {
emptyMu.Lock()
defer emptyMu.Unlock()
if emptyBlockRoot != nil {
return
}
emptyOnce.Do(computeEmpty)
}

func computeEmpty() {
// compute empty block EDS and DAH for it
result := shares.TailPaddingShares(appconsts.MinShareCount)
emptyBlockShares = shares.ToBytes(result)
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