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Beego/vendor/github.com/siddontang/ledisdb/store/rocksdb/slice.go

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2018-11-09 04:37:28 +00:00
//+build rocksdb
package rocksdb
// #cgo LDFLAGS: -lrocksdb
// #include <rocksdb/c.h>
// #include <stdlib.h>
import "C"
import (
"reflect"
"unsafe"
)
type CSlice struct {
data unsafe.Pointer
size int
}
func NewCSlice(p unsafe.Pointer, n int) *CSlice {
return &CSlice{p, n}
}
func (s *CSlice) Data() []byte {
var value []byte
sH := (*reflect.SliceHeader)(unsafe.Pointer(&value))
sH.Cap = int(s.size)
sH.Len = int(s.size)
sH.Data = uintptr(s.data)
return value
}
func (s *CSlice) Size() int {
return int(s.size)
}
func (s *CSlice) Free() {
C.free(s.data)
}