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authorQuincey Koziol <koziol@hdfgroup.org>2004-06-15 14:58:39 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2004-06-15 14:58:39 (GMT)
commit193fc7a70fe457725a213ab9b0bebcb0df502ec1 (patch)
tree5b4ec4c666b904b98c82df53c9565d59a3ee5d5c /src
parent435c8b2d7d58f361b8a74ff5bf8e53333b5f6878 (diff)
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[svn-r8690] Purpose:
Code optimization Description: Be smarter about copying hyperslab selection data and avoid memcpy() calls. Platforms tested: Solaris 2.7 (arabica) FreeBSD 4.10 (sleipnir) w/parallel Too minor to require h5committest
Diffstat (limited to 'src')
-rw-r--r--src/H5Shyper.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/H5Shyper.c b/src/H5Shyper.c
index 809474b..c9acb26 100644
--- a/src/H5Shyper.c
+++ b/src/H5Shyper.c
@@ -1583,6 +1583,8 @@ done:
herr_t
H5S_hyper_copy (H5S_t *dst, const H5S_t *src, hbool_t share_selection)
{
+ H5S_hyper_sel_t *dst_hslab; /* Pointer to destination hyperslab info */
+ const H5S_hyper_sel_t *src_hslab; /* Pointer to source hyperslab info */
herr_t ret_value=SUCCEED; /* return value */
FUNC_ENTER_NOAPI(H5S_hyper_copy, FAIL);
@@ -1594,8 +1596,21 @@ H5S_hyper_copy (H5S_t *dst, const H5S_t *src, hbool_t share_selection)
if((dst->select.sel_info.hslab=H5FL_MALLOC(H5S_hyper_sel_t))==NULL)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "can't allocate hyperslab info");
+ /* Set temporary pointers */
+ dst_hslab=dst->select.sel_info.hslab;
+ src_hslab=src->select.sel_info.hslab;
+
/* Copy the hyperslab information */
- HDmemcpy(dst->select.sel_info.hslab,src->select.sel_info.hslab,sizeof(H5S_hyper_sel_t));
+ dst_hslab->diminfo_valid=src_hslab->diminfo_valid;
+ if(src_hslab->diminfo_valid) {
+ size_t u; /* Local index variable */
+
+ for(u=0; u<src->extent.rank; u++) {
+ dst_hslab->opt_diminfo[u]=src_hslab->opt_diminfo[u];
+ dst_hslab->app_diminfo[u]=src_hslab->app_diminfo[u];
+ } /* end for */
+ } /* end if */
+ dst->select.sel_info.hslab->span_lst=src->select.sel_info.hslab->span_lst;
/* Check if there is hyperslab span information to copy */
/* (Regular hyperslab information is copied with the selection structure) */