[svn-r9758] Purpose:

Adding framework of N-bit filter

Description:
N-bit filter is required for NetCDF project.
To add N-bit filter, configure.in configure, Makefile.in under src and other
filter-related source code needs to be updated.
Currently, N-bit tests are turned off from the library. So the change will affect daily test.

Solution:

Platforms tested:
sol 2.7, linux 2.4, aix 5.1

Misc. update:

1 files changed, 46 insertions, 0 deletions

diff --git a/src/H5Pdcpl.c b/src/H5Pdcpl.c
index 7a71c29..3d7c2e7 100644
--- a/src/H5Pdcpl.c
+++ b/src/H5Pdcpl.c
@@ -1219,6 +1219,52 @@ done:
 
 
 /*-------------------------------------------------------------------------
+ * Function:    H5Pset_nbit
+ *
+ * Purpose:     Sets nbit filter for a dataset creation property list
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Kent Yang
+ *              Wednesday, November 13, 2002
+ *
+ * Modifications:
+ *              Xiaowen Wu
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pset_nbit(hid_t plist_id)
+{
+    H5O_pline_t         pline;
+    H5P_genplist_t *plist;      /* Property list pointer */
+    herr_t ret_value=SUCCEED;   /* return value */
+
+    FUNC_ENTER_API(H5Pset_nbit, FAIL);
+    H5TRACE1("e","i",plist_id);
+
+    /* Check arguments */
+    if(TRUE != H5P_isa_class(plist_id, H5P_DATASET_CREATE))
+        HGOTO_ERROR (H5E_ARGS, H5E_BADTYPE, FAIL, "not a dataset creation property list");
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5I_object(plist_id)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
+
+    /* Add the nbit filter */
+    if(H5P_get(plist, H5D_CRT_DATA_PIPELINE_NAME, &pline) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get pipeline");
+    if(H5Z_append(&pline, H5Z_FILTER_NBIT, H5Z_FLAG_OPTIONAL, 0, NULL)<0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to add nbit filter to pipeline");
+    if(H5P_set(plist, H5D_CRT_DATA_PIPELINE_NAME, &pline) < 0)
+        HGOTO_ERROR(H5E_PLINE, H5E_CANTINIT, FAIL, "unable to set pipeline");
+
+done:
+    FUNC_LEAVE_API(ret_value);
+} /* end H5Pset_nbit() */
+
+
+/*-------------------------------------------------------------------------
  * Function:	H5Pset_fletcher32
  *
  * Purpose:	Sets Fletcher32 checksum of EDC for a dataset creation