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/* Copyright (c) 2008-2022 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 <limits>
#include <unistd.h>
#include "signal_handler.h"
#include "header.h"
#include "image_io/pipe.h"
namespace MR
{
namespace ImageIO
{
void Pipe::load (const Header& header, size_t)
{
assert (files.size() == 1);
DEBUG ("mapping piped image \"" + files[0].name + "\"...");
segsize /= files.size();
int64_t bytes_per_segment = (header.datatype().bits() * segsize + 7) / 8;
if (double (bytes_per_segment) >= double (std::numeric_limits<size_t>::max()))
throw Exception ("image \"" + header.name() + "\" is larger than maximum accessible memory");
mmap.reset (new File::MMap (files[0], writable, !is_new, bytes_per_segment));
addresses.resize (1);
addresses[0].reset (mmap->address());
}
void Pipe::unload (const Header&)
{
if (mmap) {
mmap.reset();
if (is_new) {
std::cout << files[0].name << "\n";
SignalHandler::unmark_file_for_deletion (files[0].name);
}
addresses[0].release();
}
}
bool Pipe::delete_piped_images = true;
}
}
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