lldirguard.h
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- /**
- * @file lldirguard.h
- * @brief Protect working directory from being changed in scope.
- *
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- *
- * Copyright (c) 2009-2010, 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