// license that can be found in the LICENSE file.

package robustio

import (
	"errors"
	"syscall"
)

const errFileNotFound = syscall.ENOENT

// isEphemeralError returns true if err may be resolved by waiting.
func isEphemeralError(err error) bool {
	var errno syscall.Errno
	if errors.As(err, &errno) {
		return errno == errFileNotFound
	}
	return false

package robustio

import (
	"errors"
	"internal/syscall/windows"
	"syscall"
)

const errFileNotFound = syscall.ERROR_FILE_NOT_FOUND

// isEphemeralError returns true if err may be resolved by waiting.
func isEphemeralError(err error) bool {
	var errno syscall.Errno
	if errors.As(err, &errno) {
		switch errno {
		case syscall.ERROR_ACCESS_DENIED,
			syscall.ERROR_FILE_NOT_FOUND,

//
// This set may be expanded in the future; programs must not rely on the
// non-ephemerality of any given error.
func IsEphemeralError(err error) bool {
	return isEphemeralError(err)

		// increase in robustness is probably not worth the extra latency.
		return err, isEphemeralError(err) && !errors.Is(err, errFileNotFound)
	})
	return b, err
}

func removeAll(path string) error {
	return retry(func() (err error, mayRetry bool) {
		err = os.RemoveAll(path)
		return err, isEphemeralError(err)
	})

	return os.Rename(oldpath, newpath)
}

func readFile(filename string) ([]byte, error) {
	return os.ReadFile(filename)
}

func removeAll(path string) error {
	return os.RemoveAll(path)
}

func isEphemeralError(err error) bool {
	return false