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mongodb/util/winutil.h
2010-07-06 11:08:42 +08:00

45 lines
1.4 KiB
C++

// @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