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[FS] Report errors from llvm::sys::fs::rename on Windows

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Previously we would always report success, which is pretty bogus.

I'm too lazy to write a test where rename will portably fail on all
platforms. I'm just trying to fix breakage introduced by r234597, which
happened to tickle this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234611 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner 2015-04-10 17:20:45 +00:00
parent 10d1d8a3bd
commit 6d48bd04aa
1 changed files with 1 additions and 0 deletions
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lib/Support/Windows/Path.inc
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@ -261,6 +261,7 @@ std::error_code rename(const Twine &from, const Twine &to) {
MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING)) MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
return std::error_code(); return std::error_code();
DWORD LastError = ::GetLastError(); DWORD LastError = ::GetLastError();
ec = windows_error(LastError);
if (LastError != ERROR_ACCESS_DENIED) if (LastError != ERROR_ACCESS_DENIED)
break; break;
// Retry MoveFile() at ACCESS_DENIED. // Retry MoveFile() at ACCESS_DENIED.