path.h

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00001 // -*- mode: c++; indent-tabs-mode: t -*-
00006 /*
00007  * Copyright (C) 2005,2006,2007  Enrico Zini <enrico@debian.org>
00008  *
00009  * This program is free software; you can redistribute it and/or modify
00010  * it under the terms of the GNU General Public License as published by
00011  * the Free Software Foundation; either version 2 of the License, or
00012  * (at your option) any later version.
00013  *
00014  * This program is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  * GNU General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU General Public License
00020  * along with this program; if not, write to the Free Software
00021  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022  */
00023 
00024 #ifndef EPT_TEXTSEARCH_PATH_H
00025 #define EPT_TEXTSEARCH_PATH_H
00026 
00027 #include <string>
00028 
00029 struct stat;
00030 
00031 namespace ept {
00032 namespace textsearch {
00033 
00037 class Path
00038 {
00039 public:
00040     static std::string indexDir();
00041 
00042     // Directory where Popcon source data is found
00043     static void setIndexDir( const std::string &s );
00044 
00045     static int access( const std::string &, int );
00046     static time_t indexTimestamp();
00047     static void setTimestamp(time_t ts);
00048 
00049     // RAII-style classes to temporarily override directories
00050     class OverrideIndexDir
00051     {
00052         std::string old;
00053     public:
00054         OverrideIndexDir(const std::string& path) : old(Path::indexDir())
00055         {
00056             Path::setIndexDir(path);
00057         }
00058         ~OverrideIndexDir() { Path::setIndexDir(old); }
00059     };
00060 
00061 protected:
00062     static Path *s_instance;
00063     static Path &instance();
00064 
00065     // Directory where Popcon source data is found
00066     std::string m_indexDir;
00067 };
00068 
00069 }
00070 }
00071 
00072 // vim:set ts=4 sw=4:
00073 #endif

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