[svn-r5130] Purpose:

    Bug Fix & Feature

Description:
    The selection offset was being ignored for optimized hyperslab selection
    I/O operations.

    Additionally, I've found that the restrictions on optimized selection
    I/O operations were too strict and found a way to allow more hyperslabs
    to use the optimized I/O routines.

Solution:
    Incorporate the selection offset into the selection location when performing
    optimized I/O operations.

    Allow optimized I/O on any single hyperslab selection and also allow
    hyperslab operations on chunked datasets.

Platforms tested:
    FreeBSD 4.5 (sleipnir)

1 files changed, 2 insertions, 0 deletions

diff --git a/src/H5Spkg.h b/src/H5Spkg.h
index 7e3da29..0e6a0c5 100644
--- a/src/H5Spkg.h
+++ b/src/H5Spkg.h
@@ -132,6 +132,7 @@ __DLL__ herr_t H5S_point_select_serialize(const H5S_t *space, uint8_t *buf);
 __DLL__ herr_t H5S_point_select_deserialize(H5S_t *space, const uint8_t *buf);
 __DLL__ herr_t H5S_point_bounds(H5S_t *space, hsize_t *start, hsize_t *end);
 __DLL__ htri_t H5S_point_select_contiguous(const H5S_t *space);
+__DLL__ htri_t H5S_point_select_single(const H5S_t *space);
 __DLL__ herr_t H5S_select_elements (H5S_t *space, H5S_seloper_t op,
             size_t num_elem, const hssize_t **coord);
 __DLL__ herr_t H5S_point_select_iterate(void *buf, hid_t type_id, H5S_t *space,
@@ -174,6 +175,7 @@ __DLL__ hssize_t H5S_hyper_span_nblocks(H5S_hyper_span_info_t *spans);
 __DLL__ herr_t H5S_hyper_span_blocklist(H5S_hyper_span_info_t *spans, hssize_t start[], hssize_t end[], hsize_t rank, hsize_t *startblock, hsize_t *numblocks, hsize_t **buf);
 __DLL__ herr_t H5S_hyper_bounds(H5S_t *space, hsize_t *start, hsize_t *end);
 __DLL__ htri_t H5S_hyper_select_contiguous(const H5S_t *space);
+__DLL__ htri_t H5S_hyper_select_single(const H5S_t *space);
 __DLL__ herr_t H5S_hyper_select_iterate(void *buf, hid_t type_id, H5S_t *space,
                 H5D_operator_t op, void *operator_data);