H5Iterables_misc.hpp

/*
 *  Copyright (c), 2017, Adrien Devresse <adrien.devresse@epfl.ch>
 *
 *  Distributed under the Boost Software License, Version 1.0.
 *    (See accompanying file LICENSE_1_0.txt or copy at
 *          http://www.boost.org/LICENSE_1_0.txt)
 *
 */
#ifndef H5ITERABLE_MISC_HPP
#define H5ITERABLE_MISC_HPP
 
#include <exception>
#include <string>
#include <vector>
 
#include <H5Ipublic.h>
 
namespace h5gt {
 
namespace details {
 
// iterator for H5 iterate
 
struct H5GTIterateData {
  inline H5GTIterateData(std::vector<std::string>& my_names)
    : names(my_names), err(NULL) {}
 
  std::vector<std::string>& names;
  std::exception* err;
 
  inline void throwIfError() {
    if (err) {
      throw * err;
    }
  }
};
 
template <typename InfoType>
inline herr_t internal_h5gt_iterate(
    hid_t /*id*/, const char* name, const InfoType* /*info*/, void* op_data) {
  auto* data = static_cast<H5GTIterateData*>(op_data);
  try {
    data->names.emplace_back(name);
    return 0;
  } catch (...) {
    data->err =
        new ObjectException("Exception during H5Iterate, abort listing");
  }
  return -1;
}
 
} // end details
}
 
#endif // H5ITERABLE_MISC_HPP