Hdf5ObjectCreation.hpp

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// SPDX-License-Identifier: Apache-2.0

 
#pragma once
#include <hdf5.h>
 
namespace openswmm::io {
namespace detail {
// Result images carry simulation time in their datasets. Wall-clock object
// timestamps would make equal accepted states produce different checkpoints.
template <class Create> inline hid_t createHdf5Object(hid_t kind, hid_t properties, Create create) {
    const hid_t owned = properties == H5P_DEFAULT ? H5Pcreate(kind) : H5Pcopy(properties);
    if (owned < 0)
        return -1;
    const hid_t result = H5Pset_obj_track_times(owned, 0) >= 0 ? create(owned) : -1;
    H5Pclose(owned);
    return result;
}
}

inline hid_t createHdf5Dataset(hid_t location, const char* name, hid_t type, hid_t space,
                               hid_t links, hid_t creation, hid_t access) {
    return detail::createHdf5Object(H5P_DATASET_CREATE, creation, [&](hid_t properties) {
        return H5Dcreate2(location, name, type, space, links, properties, access);
    });
}

inline hid_t createHdf5Group(hid_t location, const char* name, hid_t links, hid_t creation,
                             hid_t access) {
    return detail::createHdf5Object(H5P_GROUP_CREATE, creation, [&](hid_t properties) {
        return H5Gcreate2(location, name, links, properties, access);
    });
}

inline hid_t createHdf5File(const char* path, unsigned flags, hid_t creation, hid_t access) {
    return detail::createHdf5Object(H5P_FILE_CREATE, creation, [&](hid_t properties) {
        return H5Fcreate(path, flags, properties, access);
    });
}
}