[svn-r23835] add a new API routine H5Tget_vol_named_type that retrieves the VOL named datatype object pointer.

2 files changed, 35 insertions, 2 deletions

diff --git a/src/H5Tcommit.c b/src/H5Tcommit.c
index bb0a2ba..dca92b9 100644
--- a/src/H5Tcommit.c
+++ b/src/H5Tcommit.c
@@ -915,14 +915,46 @@ H5T_update_shared(H5T_t *dt)
 
 
 /*-------------------------------------------------------------------------
+ * Function:	H5Tget_named_type
+ *
+ * Purpose:	returns the VOL object or the named datatype structure 
+ *              if it exists. This is the public wrapper for H5T_get_named_type.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Mohamad Chaarawi
+ *              June 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Tget_vol_named_type(hid_t type_id, void *dt_obj)
+{
+    H5T_t *type;                /* datatype for operation */
+    herr_t ret_value = SUCCEED; /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+
+    /* Check arguments */
+    if(NULL == (type = (H5T_t *)H5I_object_verify(type_id, H5I_DATATYPE)))
+	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a datatype")
+
+    dt_obj = H5T_get_named_type(type);
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Tget_named_type() */
+
+
+/*-------------------------------------------------------------------------
  * Function:	H5T_get_named_type
  *
  * Purpose:	returns the VOL object or the named datatype structure 
  *              if it exists
  *
- * Return:	Success:	Non-negative
+ * Return:	Success:	Pointer to the VOL Datatype object
  *
- *		Failure:	Negative
+ *		Failure:	NULL
  *
  * Programmer:	Mohamad Chaarawi
  *              June 2012
diff --git a/src/H5Tpublic.h b/src/H5Tpublic.h
index d646ef1..7d63c5a 100644
--- a/src/H5Tpublic.h
+++ b/src/H5Tpublic.h
@@ -611,6 +611,7 @@ H5_DLL hid_t H5Tarray_create1(hid_t base_id, int ndims,
             const hsize_t dim[/* ndims */],
             const int perm[/* ndims */]);
 H5_DLL int H5Tget_array_dims1(hid_t type_id, hsize_t dims[], int perm[]);
+H5_DLL herr_t H5Tget_vol_named_type(hid_t type_id, void *dt_obj);
 
 #endif /* H5_NO_DEPRECATED_SYMBOLS */