Added class DSetAccPropList

Description:
    - Added class DSetAccPropList for the dataset access property list.
    - Added wrapper for H5Dget_access_plist to class DataSet
        // Gets the access property list of this dataset.
        DSetAccPropList getAccessPlist() const;

    - Added wrappers for H5Pset_chunk_cache and H5Pget_chunk_cache to class
      DSetAccPropList
        // Sets the raw data chunk cache parameters.
        void setChunkCache(size_t rdcc_nslots, size_t rdcc_nbytes, double rdcc_w0)

        // Retrieves the raw data chunk cache parameters.
        void getChunkCache(size_t &rdcc_nslots, size_t &rdcc_nbytes, double &rdcc_w0)

    - Added two more arguments to H5Location::createDataSet:
        const DSetAccPropList& dapl = DSetAccPropList::DEFAULT
        const LinkCreatPropList& lcpl = LinkCreatPropList::DEFAULT

    - Added one more argument to H5Location::openDataSet:
        const DSetAccPropList& dapl = DSetAccPropList::DEFAULT

Platforms tested:
    Linux/64 (jelly)
    Linux/32 (jam)
    Darwin (osx1010test)

1 files changed, 113 insertions, 2 deletions

diff --git a/c++/test/dsets.cpp b/c++/test/dsets.cpp
index a3a055d..14f1bd4 100644
--- a/c++/test/dsets.cpp
+++ b/c++/test/dsets.cpp
@@ -1121,7 +1121,6 @@ static herr_t test_types(H5File& file)
  * Purpose      Tests getObjinfo()
  *
  * Return       Success: 0
- *
  *              Failure: -1
  *
  * July, 2018
@@ -1177,13 +1176,124 @@ static herr_t test_getinfo(H5File& file)
 
 
 /*-------------------------------------------------------------------------
+ * Function:    test_chunk_cache
+ *
+ * Purpose      Tests setting rdcc info on a DAPL, and interaction
+ *              with the corresponding properties in the file structure.
+ *
+ * Return       Success:        0
+ *              Failure:        number of errors
+ *
+ * July 2018
+ *-------------------------------------------------------------------------
+ */
+const int RANK1 = 1;
+const H5std_string FILE_ACCPLIST("test_accplist.h5");
+
+static herr_t test_chunk_cache(FileAccPropList fapl)
+{
+    SUBTEST("DSetAccPropList::set/getChunkCache");
+
+    try {
+        // Create a default dataset access and file access property lists
+        FileAccPropList fapl_def;
+        DSetAccPropList dapl;
+
+        // Verify that chunk cache parameters are the same
+        int mdc_nelmts = 0;
+        size_t nslots_1 = 0, nslots_4 = 0, nbytes_1 = 0, nbytes_4 = 0;
+        double w0_1 = 0.0F, w0_4 = 0.0F;
+        fapl_def.getCache(mdc_nelmts, nslots_1, nbytes_1, w0_1);
+        dapl.getChunkCache(nslots_4, nbytes_4, w0_4);
+        verify_val(nslots_1, nslots_4, "DSetAccPropList::getChunkCache",  __LINE__, __FILE__);
+        verify_val(nbytes_1, nbytes_4, "DSetAccPropList::getChunkCache",  __LINE__, __FILE__);
+        verify_val(w0_1, w0_4, "DSetAccPropList::getChunkCache",  __LINE__, __FILE__);
+
+        // Set a link access property on dapl to verify property list inheritance
+        dapl.setNumLinks((size_t)134);
+        size_t nlinks = dapl.getNumLinks();
+        verify_val(nlinks, (size_t)134, "DSetAccPropList::getNumLinks", __LINE__, __FILE__);
+
+        // Make a copy of the external fapl
+        FileAccPropList fapl_local(fapl);
+
+        // Set new rdcc settings on fapl local
+        size_t nslots_2 = nslots_1 * 2;
+        size_t nbytes_2 = nbytes_1 * 2;
+        double w0_2 = w0_1 / (double)2.0F;
+        fapl_local.getCache(mdc_nelmts, nslots_2, nbytes_2, w0_2);
+
+        // Create a new file using default fcpl and the passed-in fapl
+        H5File file(FILE_ACCPLIST, H5F_ACC_TRUNC, FileCreatPropList::DEFAULT, fapl_local);
+
+        // Create dataset creation property list
+        DSetCreatPropList dcpl;
+
+        // Set chunk dimensions
+        hsize_t cdims[RANK1];
+        cdims[0] = 10;
+        dcpl.setChunk(RANK1, cdims);
+
+        // Create memory space
+        hsize_t mdims[RANK1];
+        mdims[0] = 10;
+        DataSpace mspace(RANK1, mdims);
+
+        // Create a dataset using that dataset creation properties
+        DataSet dataset(file.createDataSet(DSET_CHUNKED_NAME, PredType::NATIVE_INT, mspace, dcpl, dapl));
+
+        // Get the dataset access property list
+        DSetAccPropList dapl2 = dataset.getAccessPlist();
+
+        // Retrieve and verify the raw data chunk cache parameters
+        nslots_4 = nbytes_4 = 0;
+        w0_4 = 0.0F;
+        dapl2.getChunkCache(nslots_4, nbytes_4, w0_4);
+        verify_val(nslots_2, nslots_4, "DSetCreatPropList::getChunkCache", __LINE__, __FILE__);
+        verify_val(nbytes_2, nbytes_4, "DSetCreatPropList::getChunkCache", __LINE__, __FILE__);
+        verify_val(H5_DBL_ABS_EQUAL(w0_2, w0_4), 1, "DSetCreatPropList::getChunkCache", __LINE__, __FILE__);
+
+
+        // Set new values on original dapl
+        size_t nslots_3 = nslots_1 * 2;
+        size_t nbytes_3 = H5D_CHUNK_CACHE_NBYTES_DEFAULT;
+        double w0_3 = w0_2 / 2;
+        dapl.getChunkCache(nslots_3, nbytes_3, w0_3);
+
+        // Close dataset
+        dataset.close();
+
+        // Reopen dataset
+        DataSet dataset2(file.openDataSet(DSET_CHUNKED_NAME, dapl));
+
+        // Get the dataset access property list
+        DSetAccPropList dapl3 = dataset2.getAccessPlist();
+
+        // Retrieve and verify the raw data chunk cache parameters
+        dapl3.getChunkCache(nslots_4, nbytes_4, w0_4);
+        verify_val(nslots_3, nslots_4, "DSetCreatPropList::getLayout", __LINE__, __FILE__);
+        verify_val(nbytes_3, nbytes_4, "DSetCreatPropList::getLayout", __LINE__, __FILE__);
+        verify_val(H5_DBL_ABS_EQUAL(w0_3, w0_4), 1, "DSetCreatPropList::getLayout", __LINE__, __FILE__);
+
+
+        PASSED();
+        return 0;
+    } // end top try block
+
+    catch (Exception& E)
+    {
+        return -1;
+    }
+} // test_chunk_cache
+
+
+/*-------------------------------------------------------------------------
  * Function:    test_virtual
  *
  * Purpose      Tests fixed, unlimited, and printf selections in the same
  *              VDS
  *
  * Return       Success:        0
- *
  *              Failure:        number of errors
  *
  * Programmer   Binh-Minh Ribler
@@ -1305,6 +1415,7 @@ void test_dset()
         nerrors += test_multiopen (file) < 0 ? 1:0;
         nerrors += test_types(file) < 0 ? 1:0;
         nerrors += test_virtual() < 0 ? 1:0;
+        nerrors += test_chunk_cache(fapl) < 0 ? 1:0;
 
         // Close group "emit diagnostics".
         grp.close();