[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, 4 insertions, 4 deletions

diff --git a/src/H5S.c b/src/H5S.c
index 0b6632c..43547db 100644
--- a/src/H5S.c
+++ b/src/H5S.c
@@ -1525,8 +1525,8 @@ H5S_find (const H5S_t *mem_space, const H5S_t *file_space)
             /*
              * Initialize direct read/write functions
              */
-            c1=H5S_select_contiguous(file_space);
-            c2=H5S_select_contiguous(mem_space);
+            c1=H5S_select_single(file_space);
+            c2=H5S_select_single(mem_space);
             if(c1==FAIL || c2==FAIL)
                 HRETURN_ERROR(H5E_DATASPACE, H5E_BADRANGE, NULL, "invalid check for contiguous dataspace ");
 
@@ -1563,8 +1563,8 @@ H5S_find (const H5S_t *mem_space, const H5S_t *file_space)
     /*
      * Initialize direct read/write functions
      */
-    c1=H5S_select_contiguous(file_space);
-    c2=H5S_select_contiguous(mem_space);
+    c1=H5S_select_single(file_space);
+    c2=H5S_select_single(mem_space);
     if(c1==FAIL || c2==FAIL)
         HRETURN_ERROR(H5E_DATASPACE, H5E_BADRANGE, NULL, "invalid check for contiguous dataspace ");