OutputDirectoryFifoQueue.cpp

/*
 
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*/
 
#include "OutputDirectoryFifoQueue.hpp"
#include <cassert>
#include "OutputFileHandler.hpp"
#include "Exception.hpp"
#include "FileFinder.hpp"
#include "PetscTools.hpp"
 
OutputDirectoryFifoQueue::OutputDirectoryFifoQueue(const std::string& rBaseDirectory, unsigned queueMaxSize) :
    mBaseDirectory(rBaseDirectory),
    mQueueMaxSize(queueMaxSize)
{
    // Create the base directory
    OutputFileHandler handler(mBaseDirectory);
 
    // Paranoia
    assert(mQueue.empty());
}
 
std::string OutputDirectoryFifoQueue::CreateNextDir(const std::string& rSubdirectoryName)
{
    std::string subdirectory_full_name = mBaseDirectory + "/" + rSubdirectoryName;
 
    if (mQueue.size() == mQueueMaxSize)
    {
        FileFinder dir_to_remove(mBaseDirectory + "/" + mQueue.front(), RelativeTo::ChasteTestOutput);
        if (PetscTools::AmMaster())
        {
            ABORT_IF_THROWS(dir_to_remove.Remove());
        }
        PetscTools::Barrier("OutputDirectoryFifoQueue::CreateNextDir");
 
        mQueue.pop();
    }
 
    mQueue.push(rSubdirectoryName);
    OutputFileHandler handler(subdirectory_full_name);
 
    assert(mQueue.size() <= mQueueMaxSize);
 
    return subdirectory_full_name;
}