service/vendor/github.com/bytedance/sonic/internal/caching/hashing.go

41 lines
1.0 KiB
Go

/*
* Copyright 2021 ByteDance Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package caching
import (
`unsafe`
`github.com/bytedance/sonic/internal/rt`
)
var (
V_strhash = rt.UnpackEface(strhash)
S_strhash = *(*uintptr)(V_strhash.Value)
)
//go:noescape
//go:linkname strhash runtime.strhash
func strhash(_ unsafe.Pointer, _ uintptr) uintptr
func StrHash(s string) uint64 {
if v := strhash(unsafe.Pointer(&s), 0); v == 0 {
return 1
} else {
return uint64(v)
}
}