1 files changed, 44 insertions, 0 deletions
diff --git a/src/mongo/util/winutil.h b/src/mongo/util/winutil.h
new file mode 100644
index 00000000000..b69b69a630d
--- /dev/null
+++ b/src/mongo/util/winutil.h
@@ -0,0 +1,44 @@
+// @file winutil.cpp : Windows related utility functions
+//
+// /**
+// *    Copyright (C) 2008 10gen Inc.
+// *
+// *    This program is free software: you can redistribute it and/or  modify
+// *    it under the terms of the GNU Affero General Public License, version 3,
+// *    as published by the Free Software Foundation.
+// *
+// *    This program is distributed in the hope that it will be useful,
+// *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+// *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// *    GNU Affero General Public License for more details.
+// *
+// *    You should have received a copy of the GNU Affero General Public License
+// *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// */
+//
+// #include "pch.h"
+
+#pragma once
+
+#if defined(_WIN32)
+#include <windows.h>
+#include "text.h"
+
+namespace mongo {
+
+    inline string GetWinErrMsg(DWORD err) {
+        LPTSTR errMsg;
+        ::FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 0, (LPTSTR)&errMsg, 0, NULL );
+        std::string errMsgStr = toUtf8String( errMsg );
+        ::LocalFree( errMsg );
+        // FormatMessage() appends a newline to the end of error messages, we trim it because endl flushes the buffer.
+        errMsgStr = errMsgStr.erase( errMsgStr.length() - 2 );
+        std::ostringstream output;
+        output << errMsgStr << " (" << err << ")";
+
+        return output.str();
+    }
+}
+
+#endif
+