Incorporate patch from GE Healthcare (HDFFV-9934)

This is the same patch that had already been integrated to 1.8 branch (pull request #387).
Tested on moohan, ostrich, platypus, emu, osx1010test, quail, kituo, mayll.

1 files changed, 40 insertions, 0 deletions

diff --git a/src/H5D.c b/src/H5D.c
index 6f69ee4..a6de952 100644
--- a/src/H5D.c
+++ b/src/H5D.c
@@ -1087,3 +1087,43 @@ done:
     FUNC_LEAVE_API(ret_value)
 } /* H5Dget_chunk_index_type() */
 
+
+/*-------------------------------------------------------------------------
+ * Function:    H5Dget_chunk_storage_size
+ *
+ * Purpose:     Returns the size of an allocated chunk.
+ *
+ * Return:	Non-negative on success, negative on failure
+ *
+ * Programmer:  Matthew Strong (GE Healthcare)
+ *              20 October 2016
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Dget_chunk_storage_size(hid_t dset_id, const hsize_t *offset, hsize_t *chunk_nbytes)
+{
+    H5D_t       *dset = NULL;
+    herr_t      ret_value = SUCCEED;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE3("e", "i*h*h", dset_id, offset, chunk_nbytes);
+
+    /* Check arguments */
+    if(NULL == (dset = (H5D_t *)H5I_object_verify(dset_id, H5I_DATASET)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset")
+    if( NULL == offset )
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid argument (null)")
+    if( NULL == chunk_nbytes )
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid argument (null)")
+
+    if(H5D_CHUNKED != dset->shared->layout.type)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a chunked dataset")
+
+    /* Call private function */
+    if(H5D__get_chunk_storage_size(dset, H5P_DATASET_XFER_DEFAULT, offset, chunk_nbytes) < 0)
+        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get storage size of chunk")
+
+done:
+    FUNC_LEAVE_API(ret_value);
+}