GDCM 2.2.0

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ReadMultiTimesException.cxx

    /*=========================================================================

      Program: GDCM (Grassroots DICOM). A DICOM library

      Copyright (c) 2006-2011 Mathieu Malaterre
      All rights reserved.
      See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.

         This software is distributed WITHOUT ANY WARRANTY; without even
         the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
         PURPOSE.  See the above copyright notice for more information.

    =========================================================================*/
    // The intention of this sample program is to provoke bad_alloc exceptions in gdcm code

    #include "gdcmImageReader.h"

    int main(int argc, char* argv[])
    {
      // We pre-allocate some memory (about 1Gb) to help the issue to show up earlier
      char *dummyBuffer = new char[1024*1024*1100]; (void)dummyBuffer;
      // Check the number of parameters given
      if (argc < 3)
        {
        std::cerr << "Usage: " << argv[0] << " Filename numberOfTries" << std::endl;
        return 1;
        }

      std::cout << "We are going to read the file: " << argv[1] << " " << argv[2] << " times" << std::endl;
      // We hold the pointers in an array to avoid the memory to be released
      // We read the input file n-times
      for (int i = 0; i < atoi(argv[2]); ++i)
        {
        gdcm::ImageReader reader;
        std::cout << "Reading try: " << i << std::endl;
        // Read files
        reader.SetFileName(argv[1]);
        try
          {
          reader.Read();
          gdcm::Image & img = reader.GetImage();
          unsigned long len = img.GetBufferLength();
          char *buffer = new char[ len ];
          img.GetBuffer( buffer ); // do NOT de-allocate buffer !
          }
        catch (std::bad_alloc)
          {
          std::cerr << "BAD ALLOC Exception caught!" << std::endl;
          }
        catch (...)
          {
          std::cerr << "Exception caught!" << std::endl;
          }
        }

      return 0;
    }