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39 lines
534 B
Go
39 lines
534 B
Go
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package logstorage
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import (
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"sync"
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"github.com/cespare/xxhash/v2"
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)
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func hash128(data []byte) u128 {
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h := getHasher()
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_, _ = h.Write(data)
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hi := h.Sum64()
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_, _ = h.Write(magicSuffixForHash)
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lo := h.Sum64()
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putHasher(h)
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return u128{
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hi: hi,
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lo: lo,
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}
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}
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var magicSuffixForHash = []byte("magic!")
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func getHasher() *xxhash.Digest {
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v := hasherPool.Get()
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if v == nil {
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return xxhash.New()
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}
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return v.(*xxhash.Digest)
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}
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func putHasher(h *xxhash.Digest) {
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h.Reset()
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hasherPool.Put(h)
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}
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var hasherPool sync.Pool
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