github.com/keybase/client/go@v0.0.0-20241007131713-f10651d043c8/kbfs/dokan/unsafe.go (about)

     1  // Copyright 2016 Keybase Inc. All rights reserved.
     2  // Use of this source code is governed by a BSD
     3  // license that can be found in the LICENSE file.
     4  
     5  package dokan
     6  
     7  import (
     8  	"reflect"
     9  	"unsafe"
    10  )
    11  
    12  // bufToSlice returns a byte slice aliasing the pointer and length given as arguments.
    13  func bufToSlice(ptr unsafe.Pointer, nbytes uint32) []byte { // nolint
    14  	if ptr == nil || nbytes == 0 {
    15  		return nil
    16  	}
    17  	return *(*[]byte)(unsafe.Pointer(&reflect.SliceHeader{
    18  		Data: uintptr(ptr),
    19  		Len:  int(nbytes),
    20  		Cap:  int(nbytes)}))
    21  }