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minio/pkg/erasure/ctypes.go

62 lines
1.8 KiB

/*
* Minio Cloud Storage, (C) 2014 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 erasure
// #include <stdint.h>
import "C"
import (
"fmt"
"unsafe"
)
// intSlice2CIntArray converts Go int slice to C int array
func intSlice2CIntArray(srcErrList []int) *C.int32_t {
if len(srcErrList) == 0 {
return (*C.int32_t)(unsafe.Pointer(nil))
}
var sizeErrInt = int(unsafe.Sizeof(srcErrList[0]))
switch sizeInt {
case sizeErrInt:
return (*C.int32_t)(unsafe.Pointer(&srcErrList[0]))
case sizeInt8:
int8Array := make([]int8, len(srcErrList))
for i, v := range srcErrList {
int8Array[i] = int8(v)
}
return (*C.int32_t)(unsafe.Pointer(&int8Array[0]))
case sizeInt16:
int16Array := make([]int16, len(srcErrList))
for i, v := range srcErrList {
int16Array[i] = int16(v)
}
return (*C.int32_t)(unsafe.Pointer(&int16Array[0]))
case sizeInt32:
int32Array := make([]int32, len(srcErrList))
for i, v := range srcErrList {
int32Array[i] = int32(v)
}
return (*C.int32_t)(unsafe.Pointer(&int32Array[0]))
case sizeInt64:
int64Array := make([]int64, len(srcErrList))
for i, v := range srcErrList {
int64Array[i] = int64(v)
}
return (*C.int32_t)(unsafe.Pointer(&int64Array[0]))
default:
panic(fmt.Sprintf("Unsupported: %d", sizeInt))
}
}