File: scratch.cpp

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/* Copyright (c) 2008-2025 the MRtrix3 contributors.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Covered Software is provided under this License on an "as is"
 * basis, without warranty of any kind, either expressed, implied, or
 * statutory, including, without limitation, warranties that the
 * Covered Software is free of defects, merchantable, fit for a
 * particular purpose or non-infringing.
 * See the Mozilla Public License v. 2.0 for more details.
 *
 * For more details, see http://www.mrtrix.org/.
 */

#include <memory>

#include "image_io/scratch.h"
#include "header.h"

namespace MR
{
  namespace ImageIO
  {

    bool Scratch::is_file_backed () const { return false; }

    void Scratch::load (const Header& header, size_t buffer_size)
    {
      assert (buffer_size);
      DEBUG ("allocating scratch buffer for image \"" + header.name() + "\"...");
      try {
        addresses.push_back (std::unique_ptr<uint8_t[]> (new uint8_t [buffer_size]));
        memset (addresses[0].get(), 0, buffer_size);
      } catch (...) {
        throw Exception ("Error allocating memory for scratch buffer");
      }
    }

  }
}