Support: Work around missing SetFileInformationByHandle on Wine
In r315079, fs::rename was reimplemented in terms of CreateFile and
SetFileInformationByHandle. Unfortunately, the latter isn't supported by
Wine. This adds a fallback to MoveFileEx for that case.
Differential Revision: https://reviews.llvm.org/D38817
llvm-svn: 315520
diff --git a/llvm/lib/Support/Windows/Path.inc b/llvm/lib/Support/Windows/Path.inc
index 94cb2e4..5866f9a 100644
--- a/llvm/lib/Support/Windows/Path.inc
+++ b/llvm/lib/Support/Windows/Path.inc
@@ -413,6 +413,17 @@
// a true error, so stop trying.
for (unsigned Retry = 0; Retry != 200; ++Retry) {
auto EC = rename_internal(FromHandle, To, true);
+
+ if (EC ==
+ std::error_code(ERROR_CALL_NOT_IMPLEMENTED, std::system_category())) {
+ // Wine doesn't support SetFileInformationByHandle in rename_internal.
+ // Fall back to MoveFileEx.
+ if (::MoveFileExW(WideFrom.begin(), WideTo.begin(),
+ MOVEFILE_REPLACE_EXISTING))
+ return std::error_code();
+ return mapWindowsError(GetLastError());
+ }
+
if (!EC || EC != errc::permission_denied)
return EC;