[PATCH] D50048: [Windows FS] Allow moving files in TempFile::keep

[Jeremy Morse via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL338841: [Windows FS] Allow moving files in TempFile::keep (authored by jmorse, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D50048?vs=158492&id=158962#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D50048

Files:
  llvm/trunk/lib/Support/Path.cpp
  llvm/trunk/lib/Support/Windows/Path.inc


Index: llvm/trunk/lib/Support/Windows/Path.inc
===================================================================
--- llvm/trunk/lib/Support/Windows/Path.inc
+++ llvm/trunk/lib/Support/Windows/Path.inc
@@ -450,7 +450,7 @@
       if (std::error_code EC2 = realPathFromHandle(FromHandle, WideFrom))
         return EC2;
       if (::MoveFileExW(WideFrom.begin(), WideTo.begin(),
-                        MOVEFILE_REPLACE_EXISTING | MOVEFILE_COPY_ALLOWED))
+                        MOVEFILE_REPLACE_EXISTING))
         return std::error_code();
       return mapWindowsError(GetLastError());
     }
Index: llvm/trunk/lib/Support/Path.cpp
===================================================================
--- llvm/trunk/lib/Support/Path.cpp
+++ llvm/trunk/lib/Support/Path.cpp
@@ -1159,8 +1159,16 @@
   // If we can't cancel the delete don't rename.
   auto H = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
   std::error_code RenameEC = setDeleteDisposition(H, false);
-  if (!RenameEC)
+  if (!RenameEC) {
     RenameEC = rename_fd(FD, Name);
+    // If rename failed because it's cross-device, copy instead
+    if (RenameEC ==
+      std::error_code(ERROR_NOT_SAME_DEVICE, std::system_category())) {
+      RenameEC = copy_file(TmpName, Name);
+      setDeleteDisposition(H, true);
+    }
+  }
+
   // If we can't rename, discard the temporary file.
   if (RenameEC)
     setDeleteDisposition(H, true);


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