New references for Dimension Scale APIs (#1139)

* Enable usage of new-style references with dimension scale APIs

* Add API to check if an object ID represents a native connector object

* Modified code to use new function H5DSwith_new_ref to determine if new references should be used with
Dimension Scales. The new function return TRUE if non-native connector is used or if H5_DIMENSION_SCALES_WITH_NEW_REF
varible is define at configure time (--enable-dimension-scales-with-new-ref).

Tested on jelly.

ToDo: generate testing file on BE system and enable the test; add flag to CMake; test netCDF-4 with the new references.

* Adding new test files generated on BE system (hedgehog) created by 32 and 64-bit library.

test_ds chokes on test_ds_le_new_ref.h5  on BE system; test passes for test_ds_be_new_ref-32bit.h5
for the 32-bit library and fails for the 64-bit library, and vice versa. I am checking the files for further
investigation; but current implementation of the new references is not portable between LE and BE systems,
and 32 and 64-bit systems.

* Minor fixes for testing issues

* Update test_ds.c

Enabled broken test; tests pass now.

* Update RELEASE.txt

Documented new option to use new references with the HDF5 dimension scales APIs (H5DS*).

* Update MANIFEST for new 32-bit new-style references test file for H5DS APIs

* Update 'dimension scales w/ new-style refs' feature based on review

Co-authored-by: Elena <epourmal@hdfgroup.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/hl/src/H5DSpublic.h b/hl/src/H5DSpublic.h
index 7306cbc..9aabb98 100644
--- a/hl/src/H5DSpublic.h
+++ b/hl/src/H5DSpublic.h
@@ -25,6 +25,8 @@ typedef herr_t (*H5DS_iterate_t)(hid_t dset, unsigned dim, hid_t scale, void *vi
 extern "C" {
 #endif
 
+H5_HLDLL hbool_t H5DSwith_new_ref(hid_t obj_id);
+
 H5_HLDLL herr_t H5DSattach_scale(hid_t did, hid_t dsid, unsigned int idx);
 
 H5_HLDLL herr_t H5DSdetach_scale(hid_t did, hid_t dsid, unsigned int idx);