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/**
* @file lldirguard.h
* @brief Protect working directory from being changed in scope.
*
* $LicenseInfo:firstyear=2009&license=viewergpl$
*
* Copyright (c) 2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_DIRGUARD_H
#define LL_DIRGUARD_H
#include "linden_common.h"
#include "llerror.h"
#if LL_WINDOWS
class LLDirectoryGuard
{
public:
LLDirectoryGuard()
{
mOrigDirLen = GetCurrentDirectory(MAX_PATH, mOrigDir);
}
~LLDirectoryGuard()
{
mFinalDirLen = GetCurrentDirectory(MAX_PATH, mFinalDir);
if ((mOrigDirLen!=mFinalDirLen) ||
(wcsncmp(mOrigDir,mFinalDir,mOrigDirLen)!=0))
{
// Dir has changed
std::string mOrigDirUtf8 = utf16str_to_utf8str(llutf16string(mOrigDir));
std::string mFinalDirUtf8 = utf16str_to_utf8str(llutf16string(mFinalDir));
llinfos << "Resetting working dir from " << mFinalDirUtf8 << " to " << mOrigDirUtf8 << llendl;
SetCurrentDirectory(mOrigDir);
}
}
private:
TCHAR mOrigDir[MAX_PATH];
DWORD mOrigDirLen;
TCHAR mFinalDir[MAX_PATH];
DWORD mFinalDirLen;
};
#else // No-op outside Windows.
class LLDirectoryGuard
{
public:
LLDirectoryGuard() {}
~LLDirectoryGuard() {}
};
#endif
#endif
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