diff options
Diffstat (limited to 'src/H5Shyper.c')
| -rw-r--r-- | src/H5Shyper.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/src/H5Shyper.c b/src/H5Shyper.c index 22c1541..169d58a 100644 --- a/src/H5Shyper.c +++ b/src/H5Shyper.c @@ -1557,13 +1557,18 @@ done: DESCRIPTION Copies all the hyperslab selection information from the source dataspace to the destination dataspace. + + If the SHARE_SELECTION flag is set, then the selection can be shared + between the source and destination dataspaces. (This should only occur in + situations where the destination dataspace will immediately change to a new + selection) GLOBAL VARIABLES COMMENTS, BUGS, ASSUMPTIONS EXAMPLES REVISION LOG --------------------------------------------------------------------------*/ herr_t -H5S_hyper_copy (H5S_t *dst, const H5S_t *src) +H5S_hyper_copy (H5S_t *dst, const H5S_t *src, hbool_t share_selection) { herr_t ret_value=SUCCEED; /* return value */ @@ -1575,8 +1580,14 @@ H5S_hyper_copy (H5S_t *dst, const H5S_t *src) /* Check if there is hyperslab span information to copy */ /* (Regular hyperslab information is copied with the selection structure) */ if(src->select.sel_info.hslab.span_lst!=NULL) { - /* Copy the hyperslab span information */ - dst->select.sel_info.hslab.span_lst=H5S_hyper_copy_span(src->select.sel_info.hslab.span_lst); + if(share_selection) { + /* Share the source's span tree by incrementing the reference count on it */ + dst->select.sel_info.hslab.span_lst=src->select.sel_info.hslab.span_lst; + dst->select.sel_info.hslab.span_lst->count++; + } /* end if */ + else + /* Copy the hyperslab span information */ + dst->select.sel_info.hslab.span_lst=H5S_hyper_copy_span(src->select.sel_info.hslab.span_lst); } /* end if */ done: |