mock_contiguous_chunks.hpp

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#ifndef RITSUKO_HDF5_MOCK_CONTIGUOUS_CHUNKS_HPP
#define RITSUKO_HDF5_MOCK_CONTIGUOUS_CHUNKS_HPP
 
#include <vector>
 
#include "H5Cpp.h"
#include "sanisizer/sanisizer.hpp"
 
namespace ritsuko {
 
namespace hdf5 {
 
inline std::vector<hsize_t> mock_contiguous_chunks(const std::vector<hsize_t>& dimensions, hsize_t chunk_size) {
    const auto ndims = dimensions.size();
    auto output = sanisizer::create<std::vector<hsize_t> >(ndims, 1);
    // Starting from the end, as this is the fastest-changing.
    for (auto i = ndims; i > 0; --i) {
        const auto d = i - 1;
        if (dimensions[d] == 0) {
            continue;
        }
        if (chunk_size <= dimensions[d]) {
            output[d] = chunk_size;
            break;
        }
        output[d] = dimensions[d];
        chunk_size /= dimensions[d];
    }
    return output;
}
 
}
 
}
 
#endif