HighFive/include/highfive/bits/H5Object_misc.hpp at b3d812b4c9d702759fbc4d52d21a664a0e49f852 · BlueBrain/HighFive · GitHub

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/*
 *  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)
 *
 */
#pragma once

#include <iostream>

#include "../H5Exception.hpp"
#include "../H5Utility.hpp"
#include "h5i_wrapper.hpp"

namespace HighFive {
namespace detail {
inline Object make_object(hid_t hid) {
    return Object(hid);
}
}  // namespace detail


inline Object::Object()
    : _hid(H5I_INVALID_HID) {}

inline Object::Object(hid_t hid)
    : _hid(hid) {}

inline Object::Object(const Object& other)
    : _hid(other._hid) {
    if (other.isValid()) {
        detail::h5i_inc_ref(_hid);
    }
}

inline Object::Object(Object&& other) noexcept
    : _hid(other._hid) {
    other._hid = H5I_INVALID_HID;
}

inline Object& Object::operator=(const Object& other) {
    if (this != &other) {
        if ((*this).isValid()) {
            detail::h5i_dec_ref(_hid);
        }

        _hid = other._hid;
        if (other.isValid()) {
            detail::h5i_inc_ref(_hid);
        }
    }
    return *this;
}

inline Object::~Object() {
    if (isValid()) {
        if (detail::nothrow::h5i_dec_ref(_hid) < 0) {
            HIGHFIVE_LOG_ERROR("Failed to decrease reference count of HID");
        }
    }
}

inline bool Object::isValid() const noexcept {
    return (_hid > 0) && (detail::nothrow::h5i_is_valid(_hid) > 0);
}

inline hid_t Object::getId() const noexcept {
    return _hid;
}

static inline ObjectType _convert_object_type(const H5I_type_t& h5type) {
    switch (h5type) {
    case H5I_FILE:
        return ObjectType::File;
    case H5I_GROUP:
        return ObjectType::Group;
    case H5I_DATATYPE:
        return ObjectType::UserDataType;
    case H5I_DATASPACE:
        return ObjectType::DataSpace;
    case H5I_DATASET:
        return ObjectType::Dataset;
    case H5I_ATTR:
        return ObjectType::Attribute;
    default:
        return ObjectType::Other;
    }
}

inline ObjectType Object::getType() const {
    // H5Iget_type is a very lightweight func which extracts the type from the id
    return _convert_object_type(detail::h5i_get_type(_hid));
}

inline ObjectInfo Object::getInfo() const {
    ObjectInfo info;
#if (H5Oget_info_vers < 3)
    if (H5Oget_info(_hid, &info.raw_info) < 0) {
#else
    if (H5Oget_info1(_hid, &info.raw_info) < 0) {
#endif
        HDF5ErrMapper::ToException<ObjectException>("Unable to obtain info for object");
    }
    return info;
}

inline haddr_t ObjectInfo::getAddress() const noexcept {
    return raw_info.addr;
}
inline size_t ObjectInfo::getRefCount() const noexcept {
    return raw_info.rc;
}
inline time_t ObjectInfo::getCreationTime() const noexcept {
    return raw_info.btime;
}
inline time_t ObjectInfo::getModificationTime() const noexcept {
    return raw_info.mtime;
}


}  // namespace HighFive