//go:build windows

package host

import (
	"errors"
	"os"
)

// lockFileEx refuses on Windows rather than pretending to lock. Restart
// passes are root units on a Linux box; the Windows build exists only so the
// carlos CLI compiles for workstation use. Refusing is also the SAFE failure
// here: lockRestartMarks's caller dispatches nothing when the lock cannot be
// taken (restart.go's pass doc), so an unlockable platform cycles no
// processes — whereas a no-op lock would claim serialization it does not
// provide.
func lockFileEx(f *os.File) error {
	return errors.New("restart-mark locking is box-side (linux) only")
}

func unlockFile(f *os.File) {}