GetDiskFreeSpaceEx = kernel32.NewProc("GetDiskFreeSpaceExW")

	// GetDiskFreeSpace - https://msdn.microsoft.com/en-us/library/windows/desktop/aa364935(v=vs.85).aspx
	// Retrieves information about the specified disk, including the amount of free space on the disk.
	GetDiskFreeSpace = kernel32.NewProc("GetDiskFreeSpaceW")
)

package disk

import (
	"path/filepath"
	"syscall"
	"unsafe"
)

// GetVolumeInformation provides windows drive volume information.
var GetVolumeInformation = kernel32.NewProc("GetVolumeInformationW")

// getFSType returns the filesystem type of the underlying mounted filesystem
func getFSType(path string) string {
	volumeNameSize, nFileSystemNameSize := uint32(260), uint32(260)

import (
	"fmt"
	"os"
	"path/filepath"
	"syscall"
	"unsafe"

	"golang.org/x/sys/windows"
)

var (
	modkernel32    = windows.NewLazySystemDLL("kernel32.dll")
	procLockFileEx = modkernel32.NewProc("LockFileEx")
)

const (
	// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365203(v=vs.85).aspx
	lockFileExclusiveLock   = 2
	lockFileFailImmediately = 1

pkg syscall (windows-386), method (*LazyDLL) Handle() uintptr
pkg syscall (windows-386), method (*LazyDLL) Load() error
pkg syscall (windows-386), method (*LazyDLL) NewProc(string) *LazyProc
pkg syscall (windows-386), method (*LazyProc) Addr() uintptr
pkg syscall (windows-386), method (*LazyProc) Call(...uintptr) (uintptr, uintptr, error)