go/src/cmd/internal/robustio/robustio_windows.go

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

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 {
	if errno, ok := errors.AsType[syscall.Errno](err); ok {
		switch errno {
		case syscall.ERROR_ACCESS_DENIED,
			syscall.ERROR_FILE_NOT_FOUND,
			windows.ERROR_SHARING_VIOLATION:
			return true
		}
	}
	return false
}