You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: file.go
    path of file: ./repos/docker-ce/components/cli/vendor/github.com/Microsoft/go-winio
    
    the code of the file until where you have to start completion: // +build windows

package winio

import (
	"errors"
	"io"
	"runtime"
	"sync"
	"sync/atomic"
	"syscall"
	"time"
)

//sys cancelIoEx(file syscall.Handle, o *syscall.Overlapped) (err error) = CancelIoEx
//sys createIoCompletionPort(file syscall.Handl
    
func MakeOpenFile(h syscall.Handle) (io.ReadWriteCloser, error) {
	// If we return the result of makeWin32File directly, it can result in an
	// interface-wrapped nil, rather than a nil interface value.
	f, err := makeWin32File(h)
	if err != nil {
		return nil, err
	}
	return f, nil
}