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Make hashOf a function

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This commit is contained in:
kortschak 2014-08-27 23:25:50 +09:30
parent d8866478df
commit a22eb42482
3 changed files with 36 additions and 36 deletions
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30
graph/leveldb/quadstore.go
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@ -146,21 +146,31 @@ func (qa *QuadStore) createDeltaKeyFor(d graph.Delta) []byte {
return key
}
func hashOf(s string) []byte {
h := hashPool.Get().(hash.Hash)
h.Reset()
defer hashPool.Put(h)
key := make([]byte, 0, hashSize)
h.Write([]byte(s))
key = h.Sum(key)
return key
}
func (qs *QuadStore) createKeyFor(d [4]quad.Direction, q quad.Quad) []byte {
key := make([]byte, 0, 2+(hashSize*3))
// TODO(kortschak) Remove dependence on String() method.
key = append(key, []byte{d[0].Prefix(), d[1].Prefix()}...)
key = append(key, qs.hashOf(q.Get(d[0]))...)
key = append(key, qs.hashOf(q.Get(d[1]))...)
key = append(key, qs.hashOf(q.Get(d[2]))...)
key = append(key, qs.hashOf(q.Get(d[3]))...)
key = append(key, hashOf(q.Get(d[0]))...)
key = append(key, hashOf(q.Get(d[1]))...)
key = append(key, hashOf(q.Get(d[2]))...)
key = append(key, hashOf(q.Get(d[3]))...)
return key
}
func (qs *QuadStore) createValueKeyFor(s string) []byte {
key := make([]byte, 0, 1+hashSize)
key = append(key, []byte("z")...)
key = append(key, qs.hashOf(s)...)
key = append(key, hashOf(s)...)
return key
}
@ -347,16 +357,6 @@ func (qs *QuadStore) Quad(k graph.Value) quad.Quad {
return q
}
func (qs *QuadStore) hashOf(s string) []byte {
h := hashPool.Get().(hash.Hash)
h.Reset()
defer hashPool.Put(h)
key := make([]byte, 0, hashSize)
h.Write([]byte(s))
key = h.Sum(key)
return key
}
func (qs *QuadStore) ValueOf(s string) graph.Value {
return Token(qs.createValueKeyFor(s))
}