highfive/bits/h5i_wrapper.hpp

0001 #pragma once
0002
0003 #include <H5Ipublic.h>
0004
0005 namespace HighFive {
0006 namespace detail {
0007 inline int h5i_inc_ref(hid_t id) {
0008     auto count = H5Iinc_ref(id);
0009
0010     if (count < 0) {
0011         throw ObjectException("Failed to increase reference count of HID");
0012     }
0013
0014     return count;
0015 }
0016
0017 namespace nothrow {
0018
0019 inline int h5i_dec_ref(hid_t id) {
0020     return H5Idec_ref(id);
0021 }
0022
0023 }  // namespace nothrow
0024
0025 inline int h5i_dec_ref(hid_t id) {
0026     int count = H5Idec_ref(id);
0027     if (count < 0) {
0028         throw ObjectException("Failed to decrease reference count of HID");
0029     }
0030
0031     return count;
0032 }
0033
0034 namespace nothrow {
0035 inline htri_t h5i_is_valid(hid_t id) {
0036     return H5Iis_valid(id);
0037 }
0038
0039 }  // namespace nothrow
0040
0041 inline htri_t h5i_is_valid(hid_t id) {
0042     htri_t tri = H5Iis_valid(id);
0043     if (tri < 0) {
0044         throw ObjectException("Failed to check if HID is valid");
0045     }
0046
0047     return tri;
0048 }
0049
0050 inline H5I_type_t h5i_get_type(hid_t id) {
0051     H5I_type_t type = H5Iget_type(id);
0052     if (type == H5I_BADID) {
0053         HDF5ErrMapper::ToException<ObjectException>("Failed to get type of HID");
0054     }
0055
0056     return type;
0057 }
0058
0059 template <class Exception>
0060 inline hid_t h5i_get_file_id(hid_t id) {
0061     hid_t file_id = H5Iget_file_id(id);
0062     if (file_id < 0) {
0063         HDF5ErrMapper::ToException<Exception>("Failed not obtain file HID of object");
0064     }
0065
0066     return file_id;
0067 }
0068
0069 inline ssize_t h5i_get_name(hid_t id, char* name, size_t size) {
0070     ssize_t n_chars = H5Iget_name(id, name, size);
0071     if (n_chars < 0) {
0072         HDF5ErrMapper::ToException<ObjectException>("Failed to get name of HID.");
0073     }
0074
0075     return n_chars;
0076 }
0077
0078 }  // namespace detail
0079 }  // namespace HighFive