You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.4 KiB
51 lines
1.4 KiB
9 years ago
|
// +build linux,amd64,cgo
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Minio Cloud Storage, (C) 2014-2016 Minio, 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 sha1
|
||
|
|
|
||
|
|
// #cgo CFLAGS: -DHAS_AVX2
|
||
|
|
// #include <stdint.h>
|
||
|
|
// #include <stdlib.h>
|
||
|
|
// void sha1_transform(int32_t *hash, const char* input, size_t num_blocks);
|
||
|
|
// void sha1_update_intel(int32_t *hash, const char* input, size_t num_blocks);
|
||
|
|
import "C"
|
||
|
|
import (
|
||
|
|
"unsafe"
|
||
|
|
|
||
|
|
"github.com/minio/minio/pkg/cpu"
|
||
|
|
)
|
||
|
|
|
||
|
|
func block(dig *digest, p []byte) {
|
||
|
|
switch true {
|
||
|
|
case cpu.HasAVX2():
|
||
|
|
blockAVX2(dig, p)
|
||
|
|
case cpu.HasSSE41():
|
||
|
|
blockSSE3(dig, p)
|
||
|
|
default:
|
||
|
|
blockGeneric(dig, p)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func blockAVX2(dig *digest, p []byte) {
|
||
|
|
C.sha1_transform((*C.int32_t)(unsafe.Pointer(&dig.h[0])), (*C.char)(unsafe.Pointer(&p[0])), (C.size_t)(len(p)/chunk))
|
||
|
|
}
|
||
|
|
|
||
|
|
func blockSSE3(dig *digest, p []byte) {
|
||
|
|
C.sha1_update_intel((*C.int32_t)(unsafe.Pointer(&dig.h[0])), (*C.char)(unsafe.Pointer(&p[0])), (C.size_t)(len(p)/chunk))
|
||
|
|
}
|