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28 lines
528 B
Go
28 lines
528 B
Go
package models
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// from stdlib hash/fnv/fnv.go
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const (
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prime64 = 1099511628211
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offset64 = 14695981039346656037
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)
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// InlineFNV64a is an alloc-free port of the standard library's fnv64a.
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type InlineFNV64a uint64
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func NewInlineFNV64a() InlineFNV64a {
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return offset64
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}
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func (s *InlineFNV64a) Write(data []byte) (int, error) {
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hash := uint64(*s)
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for _, c := range data {
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hash ^= uint64(c)
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hash *= prime64
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}
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*s = InlineFNV64a(hash)
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return len(data), nil
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}
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func (s *InlineFNV64a) Sum64() uint64 {
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return uint64(*s)
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}
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