FileSystem.cxx

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00001 /*
00002  * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
00003  *                         UNIVERSITAT POMPEU FABRA
00004  *
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation; either version 2 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with this program; if not, write to the Free Software
00018  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00019  *
00020  */
00021 
00022 #include "FileSystem.hxx"
00023 #include "Lock.hxx"
00024 
00025 namespace CLAM
00026 {
00027         FileSystem::FileSystem()
00028         {
00029         }
00030 
00031         FileSystem::~FileSystem()
00032         {
00033         }
00034 
00035         FileSystem& FileSystem::GetInstance()
00036         {
00037 
00038                 static FileSystem theInstance;
00039 
00040                 return theInstance;
00041         }
00042 
00043         void FileSystem::UnlockFile( std::string filename )
00044         {
00045                 Mutex::ScopedLock lock( mFileLockingSemaphor );
00046                 
00047                 mLockedFiles[ filename ] = false;
00048         }
00049 
00050         void FileSystem::LockFile( std::string filename )
00051         {
00052                 Mutex::ScopedLock lock( mFileLockingSemaphor );
00053 
00054                 mLockedFiles[ filename ] = true;
00055         }
00056 
00057         bool FileSystem::IsFileLocked( std::string filename )
00058         {
00059                 Mutex::ScopedLock lock( mFileLockingSemaphor );
00060 
00061                 FileStatusTable::iterator pos = mLockedFiles.find( filename );
00062 
00063                 return pos != mLockedFiles.end() && pos->second==true;
00064         }
00065 }
00066 
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