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package core
import (
"os"
"reflect"
"unsafe"
)
var (
// Ascertain and store the system memory page size.
pageSize = os.Getpagesize()
)
// Round a length to a multiple of the system page size.
func roundToPageSize(length int) int {
return (length + (pageSize - 1)) & (^(pageSize - 1))
}
// Convert a pointer and length to a byte slice that describes that memory.
func getBytes(ptr *byte, len int) []byte {
var sl = reflect.SliceHeader{Data: uintptr(unsafe.Pointer(ptr)), Len: len, Cap: len}
return *(*[]byte)(unsafe.Pointer(&sl))
}
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