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-rw-r--r--src/H5Glink.c96
1 files changed, 81 insertions, 15 deletions
diff --git a/src/H5Glink.c b/src/H5Glink.c
index 6611ea0..73b974e 100644
--- a/src/H5Glink.c
+++ b/src/H5Glink.c
@@ -88,7 +88,8 @@ typedef struct {
/* PRIVATE PROTOTYPES */
static herr_t H5G_link_build_table_cb(const void *_mesg, unsigned idx, void *_udata);
static herr_t H5G_link_build_table(H5O_loc_t *oloc, hid_t dxpl_id,
- const H5O_linfo_t *linfo, H5_iter_order_t order, H5G_link_table_t *ltable);
+ const H5O_linfo_t *linfo, H5L_index_t idx_type, H5_iter_order_t order,
+ H5G_link_table_t *ltable);
/*-------------------------------------------------------------------------
@@ -120,7 +121,7 @@ H5G_link_build_table_cb(const void *_mesg, unsigned UNUSED idx, void *_udata)
HDassert(udata->curr_lnk < udata->ltable->nlinks);
/* Copy link message into table */
- if(H5O_copy(H5O_LINK_ID, lnk, &(udata->ltable->lnks[udata->curr_lnk])) == NULL)
+ if(NULL == H5O_copy(H5O_LINK_ID, lnk, &(udata->ltable->lnks[udata->curr_lnk])))
HGOTO_ERROR(H5E_SYM, H5E_CANTCOPY, H5O_ITER_ERROR, "can't copy link message")
/* Increment current link entry to operate on */
@@ -147,7 +148,7 @@ done:
*/
static herr_t
H5G_link_build_table(H5O_loc_t *oloc, hid_t dxpl_id, const H5O_linfo_t *linfo,
- H5_iter_order_t order, H5G_link_table_t *ltable)
+ H5L_index_t idx_type, H5_iter_order_t order, H5G_link_table_t *ltable)
{
herr_t ret_value = SUCCEED; /* Return value */
@@ -178,13 +179,22 @@ H5G_link_build_table(H5O_loc_t *oloc, hid_t dxpl_id, const H5O_linfo_t *linfo,
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, FAIL, "error iterating over link messages")
/* Sort link table in correct iteration order */
- /* (XXX: by name, currently) */
- if(order == H5_ITER_INC)
- HDqsort(ltable->lnks, ltable->nlinks, sizeof(H5O_link_t), H5G_obj_cmp_name_inc);
- else if(order == H5_ITER_INC)
- HDqsort(ltable->lnks, ltable->nlinks, sizeof(H5O_link_t), H5G_obj_cmp_name_dec);
- else
- HDassert(order == H5_ITER_NATIVE);
+ if(idx_type == H5L_INDEX_NAME) {
+ if(order == H5_ITER_INC)
+ HDqsort(ltable->lnks, ltable->nlinks, sizeof(H5O_link_t), H5G_obj_cmp_name_inc);
+ else if(order == H5_ITER_INC)
+ HDqsort(ltable->lnks, ltable->nlinks, sizeof(H5O_link_t), H5G_obj_cmp_name_dec);
+ else
+ HDassert(order == H5_ITER_NATIVE);
+ } /* end if */
+ else {
+ if(order == H5_ITER_INC)
+ HDqsort(ltable->lnks, ltable->nlinks, sizeof(H5O_link_t), H5G_obj_cmp_corder_inc);
+ else if(order == H5_ITER_INC)
+ HDqsort(ltable->lnks, ltable->nlinks, sizeof(H5O_link_t), H5G_obj_cmp_corder_dec);
+ else
+ HDassert(order == H5_ITER_NATIVE);
+ } /* end else */
} /* end if */
else
ltable->lnks = NULL;
@@ -439,7 +449,7 @@ H5G_link_get_name_by_idx(H5O_loc_t *oloc, hid_t dxpl_id,
HDassert(oloc);
/* Build table of all link messages */
- if(H5G_link_build_table(oloc, dxpl_id, linfo, H5_ITER_INC, &ltable) < 0)
+ if(H5G_link_build_table(oloc, dxpl_id, linfo, H5L_INDEX_NAME, H5_ITER_INC, &ltable) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create link message table")
/* Check for going out of bounds */
@@ -494,12 +504,12 @@ H5G_link_get_type_by_idx(H5O_loc_t *oloc, hid_t dxpl_id, const H5O_linfo_t *linf
HDassert(oloc);
/* Build table of all link messages */
- if(H5G_link_build_table(oloc, dxpl_id, linfo, H5_ITER_INC, &ltable) < 0)
+ if(H5G_link_build_table(oloc, dxpl_id, linfo, H5L_INDEX_NAME, H5_ITER_INC, &ltable) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, H5G_UNKNOWN, "can't create link message table")
/* Check for going out of bounds */
if(idx >= ltable.nlinks)
- HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5G_UNKNOWN, "index out of bound")
+ HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, H5G_UNKNOWN, "index out of bound")
/* Determine type of object */
if(ltable.lnks[idx].type == H5L_TYPE_SOFT)
@@ -664,7 +674,7 @@ H5G_link_iterate(H5O_loc_t *oloc, hid_t dxpl_id, const H5O_linfo_t *linfo,
HDassert(op.lib_op);
/* Build table of all link messages */
- if(H5G_link_build_table(oloc, dxpl_id, linfo, order, &ltable) < 0)
+ if(H5G_link_build_table(oloc, dxpl_id, linfo, H5L_INDEX_NAME, order, &ltable) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create link message table")
/* Iterate over link messages */
@@ -731,7 +741,7 @@ H5G_link_lookup_cb(const void *_mesg, unsigned UNUSED idx, void *_udata)
if(HDstrcmp(lnk->name, udata->name) == 0) {
if(udata->lnk) {
/* Copy link information */
- if(H5O_copy(H5O_LINK_ID, lnk, udata->lnk) == NULL)
+ if(NULL == H5O_copy(H5O_LINK_ID, lnk, udata->lnk))
HGOTO_ERROR(H5E_SYM, H5E_CANTCOPY, H5O_ITER_ERROR, "can't copy link message")
} /* end if */
@@ -790,3 +800,59 @@ done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5G_link_lookup() */
+
+/*-------------------------------------------------------------------------
+ * Function: H5G_link_lookup_by_corder
+ *
+ * Purpose: Look up an object in a group using link messages, according
+ * the link's creation order.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *
+ * Programmer: Quincey Koziol
+ * koziol@hdfgroup.org
+ * Nov 6 2006
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5G_link_lookup_by_corder(H5O_loc_t *oloc, hid_t dxpl_id, const H5O_linfo_t *linfo,
+ H5_iter_order_t order, hsize_t n, H5O_link_t *lnk)
+{
+ H5G_link_table_t ltable = {0, NULL}; /* Link table */
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_NOAPI(H5G_link_lookup_by_corder, FAIL)
+
+ /* check arguments */
+ HDassert(oloc && oloc->file);
+ HDassert(linfo);
+ HDassert(lnk);
+
+ /* Build table of all link messages, sorted according to desired order */
+ if(H5G_link_build_table(oloc, dxpl_id, linfo, H5L_INDEX_CORDER, order, &ltable) < 0)
+ HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, FAIL, "can't create link message table")
+
+ /* Check for going out of bounds */
+ if(n >= ltable.nlinks)
+ HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "index out of bound")
+
+ /* Copy link information */
+#ifdef QAK
+HDfprintf(stderr, "%s: ltable.lnks[%Hu].corder = %Hd\n", FUNC, n, ltable.lnks[n].corder);
+HDfprintf(stderr, "%s: ltable.lnks[%Hu].corder_valid = %t\n", FUNC, n, ltable.lnks[n].corder_valid);
+#endif /* QAK */
+ if(NULL == H5O_copy(H5O_LINK_ID, &ltable.lnks[n], lnk))
+ HGOTO_ERROR(H5E_SYM, H5E_CANTCOPY, H5O_ITER_ERROR, "can't copy link message")
+
+done:
+ /* Release link table */
+ if(ltable.lnks) {
+ /* Free link table information */
+ if(H5G_obj_release_table(&ltable) < 0)
+ HDONE_ERROR(H5E_SYM, H5E_CANTFREE, FAIL, "unable to release link table")
+ } /* end if */
+
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5G_link_lookup_by_corder() */
+
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