OutputDirectoryFifoQueue.cpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2010
00004 
00005 University of Oxford means the Chancellor, Masters and Scholars of the
00006 University of Oxford, having an administrative office at Wellington
00007 Square, Oxford OX1 2JD, UK.
00008 
00009 This file is part of Chaste.
00010 
00011 Chaste is free software: you can redistribute it and/or modify it
00012 under the terms of the GNU Lesser General Public License as published
00013 by the Free Software Foundation, either version 2.1 of the License, or
00014 (at your option) any later version.
00015 
00016 Chaste is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00019 License for more details. The offer of Chaste under the terms of the
00020 License is subject to the License being interpreted in accordance with
00021 English Law and subject to any action against the University of Oxford
00022 being under the jurisdiction of the English Courts.
00023 
00024 You should have received a copy of the GNU Lesser General Public License
00025 along with Chaste. If not, see <http://www.gnu.org/licenses/>.
00026 
00027 */
00028 
00029 #include "OutputDirectoryFifoQueue.hpp"
00030 #include "OutputFileHandler.hpp"
00031 #include <cassert>
00032 #include <iostream>
00033 #include "Exception.hpp"
00034 #include "PetscTools.hpp"
00035 
00036 OutputDirectoryFifoQueue::OutputDirectoryFifoQueue(const std::string& rBaseDirectory, unsigned queueMaxSize) :
00037     mBaseDirectory(rBaseDirectory),
00038     mQueueMaxSize(queueMaxSize)
00039 {
00040     // Create the base directory
00041     OutputFileHandler handler(mBaseDirectory);
00042 
00043     // Paranoia
00044     assert(mQueue.empty());
00045 }
00046 
00047 std::string OutputDirectoryFifoQueue::CreateNextDir(const std::string& rSubdirectoryName)
00048 {
00049     std::string subdirectory_full_name = mBaseDirectory + "/" + rSubdirectoryName;
00050 
00051     if (mQueue.size() == mQueueMaxSize)
00052     {
00053         std::string directory_to_remove =  OutputFileHandler::GetChasteTestOutputDirectory() + mBaseDirectory + "/" + mQueue.front();
00054         if (PetscTools::AmMaster())
00055         {
00056             EXPECT0(system, "rm -rf "+directory_to_remove);
00057         }
00058         PetscTools::Barrier("OutputDirectoryFifoQueue::CreateNextDir");
00059 
00060         mQueue.pop();
00061     }
00062 
00063     mQueue.push(rSubdirectoryName);
00064     OutputFileHandler handler(subdirectory_full_name);
00065 
00066     assert(mQueue.size() <= mQueueMaxSize);
00067 
00068     return subdirectory_full_name;
00069 }

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