1 // TortoiseSVN - a Windows shell extension for easy version control
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3 // Copyright (C) 2003-2007 - TortoiseSVN
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5 // This program is free software; you can redistribute it and/or
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6 // modify it under the terms of the GNU General Public License
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7 // as published by the Free Software Foundation; either version 2
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8 // of the License, or (at your option) any later version.
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10 // This program is distributed in the hope that it will be useful,
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11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 // GNU General Public License for more details.
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15 // You should have received a copy of the GNU General Public License
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16 // along with this program; if not, write to the Free Software Foundation,
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17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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20 #include "PreserveChdir.h"
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22 PreserveChdir::PreserveChdir()
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24 DWORD len = GetCurrentDirectory(0, NULL);
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27 originalCurrentDirectory = new TCHAR[len];
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28 if (GetCurrentDirectory(len, originalCurrentDirectory)==0)
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30 delete [] originalCurrentDirectory;
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31 originalCurrentDirectory = NULL;
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35 originalCurrentDirectory = NULL;
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38 PreserveChdir::~PreserveChdir()
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40 if (originalCurrentDirectory)
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42 DWORD len = GetCurrentDirectory(0, NULL);
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43 TCHAR * currentDirectory = new TCHAR[len];
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45 // _tchdir is an expensive function - don't call it unless we really have to
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46 GetCurrentDirectory(len, currentDirectory);
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47 if(_tcscmp(currentDirectory, originalCurrentDirectory) != 0)
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49 SetCurrentDirectory(originalCurrentDirectory);
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51 delete [] currentDirectory;
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52 delete [] originalCurrentDirectory;
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53 originalCurrentDirectory = NULL;
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