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bpo-46785: Fix race condition between os.stat() and unlink on Windows (GH-31858)

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Itai Steinherz 2022-05-03 02:19:13 +03:00 • committed by GitHub
parent ebb8b512e9
commit 39e6b8ae6a
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4 changed files with 57 additions and 1 deletions
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12
Modules/posixmodule.c
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@ -1890,7 +1890,17 @@ win32_xstat_impl(const wchar_t *path, struct _Py_stat_struct *result,
/* Try reading the parent directory. */
if (!attributes_from_dir(path, &fileInfo, &tagInfo.ReparseTag)) {
/* Cannot read the parent directory. */
SetLastError(error);
switch (GetLastError()) {
case ERROR_FILE_NOT_FOUND: /* File cannot be found */
case ERROR_PATH_NOT_FOUND: /* File parent directory cannot be found */
case ERROR_NOT_READY: /* Drive exists but unavailable */
case ERROR_BAD_NET_NAME: /* Remote drive unavailable */
break;
/* Restore the error from CreateFileW(). */
default:
SetLastError(error);
}
return -1;
}
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {