rename_windows.go RawHistoryFolder

1package kvconf
2
3import (
4	"errors"
5	"os"
6	"syscall"
7	"time"
8)
9
10// syncDir: Windows makes a rename durable with the file system journal.
11func syncDir(string) error { return nil }
12
13// rename retries while another process (an editor, an indexer, our own
14// watcher) holds the target open, which Windows reports as a sharing error.
15func rename(from, to string) error {
16	const (
17		errorAccessDenied     = syscall.Errno(5)
18		errorSharingViolation = syscall.Errno(32)
19	)
20	var err error
21	for i := 0; i < 20; i++ {
22		if err = os.Rename(from, to); err == nil {
23			return nil
24		}
25		if !errors.Is(err, errorAccessDenied) && !errors.Is(err, errorSharingViolation) {
26			return err
27		}
28		time.Sleep(time.Duration(i+1) * 5 * time.Millisecond)
29	}
30	return err
31}