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update

master
Vitali Fedulov 2021-10-26 12:54:25 +02:00
parent c0561abb32
commit b3659f6a64
1 changed files with 4 additions and 6 deletions
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10
hashes.go
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@ -6,11 +6,9 @@ import (
"hash/fnv" "hash/fnv"
) )
// For a specific hashing function to be (re)defined. type Hash64 func(buckets []int) uint64
type Hash func(buckets []int) uint64
// Fnva64 is a specific hash implementation, which returns // Fnva64 returns a FVN-1a hash for a slice of bucket numbers.
// a FVN-1a hash for a slice of bucket numbers.
func Fnva64(buckets []int) uint64 { func Fnva64(buckets []int) uint64 {
var b bytes.Buffer var b bytes.Buffer
gob.NewEncoder(&b).Encode(buckets) gob.NewEncoder(&b).Encode(buckets)
@ -19,8 +17,8 @@ func Fnva64(buckets []int) uint64 {
return hash.Sum64() return hash.Sum64()
} }
// HashSet returns a slice of hashes for a tree of bucket ids. // Hashes64 returns a set of hashes for a tree of bucket ids.
func HashSet(tree [][]int, hash Hash) (hs []uint64) { func Hashes64(tree [][]int, hash Hash64) (hs []uint64) {
for i := 0; i < len(tree); i++ { for i := 0; i < len(tree); i++ {
hs = append(hs, hash(tree[i])) hs = append(hs, hash(tree[i]))
} }