[svn-r15330] When an attribute was opened twice and data was written with one of the handles,

the file didn't have the data.  It happened because each handle had its own
object structure, and the empty one overwrote the data with fill value.  This is
fixed by making some attribute information like the data be shared in the
attribute structure.

Tested on smirom, kagiso, and linew. 

1 files changed, 16 insertions, 16 deletions

diff --git a/src/H5Adense.c b/src/H5Adense.c
index 45537be..79cd6fe 100644
--- a/src/H5Adense.c
+++ b/src/H5Adense.c
@@ -502,10 +502,10 @@ H5A_dense_insert(H5F_t *f, hid_t dxpl_id, const H5O_ainfo_t *ainfo, H5A_t *attr)
     udata.common.dxpl_id = dxpl_id;
     udata.common.fheap = fheap;
     udata.common.shared_fheap = shared_fheap;
-    udata.common.name = attr->name;
-    udata.common.name_hash = H5_checksum_lookup3(attr->name, HDstrlen(attr->name), 0);
+    udata.common.name = attr->shared->name;
+    udata.common.name_hash = H5_checksum_lookup3(attr->shared->name, HDstrlen(attr->shared->name), 0);
     H5_ASSIGN_OVERFLOW(udata.common.flags, mesg_flags, unsigned, uint8_t);
-    udata.common.corder = attr->crt_idx;
+    udata.common.corder = attr->shared->crt_idx;
     udata.common.found_op = NULL;
     udata.common.found_op_data = NULL;
     /* udata.id already set */
@@ -624,7 +624,7 @@ H5A_dense_write_bt2_cb(void *_record, void *_op_data, hbool_t *changed)
             udata.name = NULL;
             udata.name_hash = 0;
             udata.flags = 0;
-            udata.corder = op_data->attr->crt_idx;
+            udata.corder = op_data->attr->shared->crt_idx;
             udata.found_op = NULL;
             udata.found_op_data = NULL;
 
@@ -744,8 +744,8 @@ H5A_dense_write(H5F_t *f, hid_t dxpl_id, const H5O_ainfo_t *ainfo, H5A_t *attr)
     udata.dxpl_id = dxpl_id;
     udata.fheap = fheap;
     udata.shared_fheap = shared_fheap;
-    udata.name = attr->name;
-    udata.name_hash = H5_checksum_lookup3(attr->name, HDstrlen(attr->name), 0);
+    udata.name = attr->shared->name;
+    udata.name_hash = H5_checksum_lookup3(attr->shared->name, HDstrlen(attr->shared->name), 0);
     udata.flags = 0;
     udata.corder = 0;
     udata.found_op = NULL;
@@ -807,7 +807,7 @@ H5A_dense_copy_fh_cb(const void *obj, size_t UNUSED obj_len, void *_udata)
         HGOTO_ERROR(H5E_ATTR, H5E_CANTDECODE, FAIL, "can't decode attribute")
 
     /* Set the creation order index for the attribute */
-    udata->attr->crt_idx = udata->record->corder;
+    udata->attr->shared->crt_idx = udata->record->corder;
 
     /* Check whether we should "reconstitute" the shared message info */
     if(udata->record->flags & H5O_MSG_FLAG_SHARED)
@@ -904,8 +904,8 @@ H5A_dense_rename(H5F_t *f, hid_t dxpl_id, const H5O_ainfo_t *ainfo, const char *
     } /* end if */
 
     /* Change name of attribute */
-    H5MM_xfree(attr_copy->name);
-    attr_copy->name = H5MM_xstrdup(new_name);
+    H5MM_xfree(attr_copy->shared->name);
+    attr_copy->shared->name = H5MM_xstrdup(new_name);
 
     /* Recompute the version to encode the attribute with */
     if(H5A_set_version(f, attr_copy) < 0)
@@ -1020,14 +1020,14 @@ H5A_dense_iterate_bt2_cb(const void *_record, void *_bt2_udata)
                     HGOTO_ERROR(H5E_ATTR, H5E_CANTGET, H5_ITER_ERROR, "unable to get attribute info")
 
                 /* Make the application callback */
-                ret_value = (bt2_udata->attr_op->u.app_op2)(bt2_udata->loc_id, fh_udata.attr->name, &ainfo, bt2_udata->op_data);
+                ret_value = (bt2_udata->attr_op->u.app_op2)(bt2_udata->loc_id, fh_udata.attr->shared->name, &ainfo, bt2_udata->op_data);
                 break;
             }
 
 #ifndef H5_NO_DEPRECATED_SYMBOLS
             case H5A_ATTR_OP_APP:
                 /* Make the application callback */
-                ret_value = (bt2_udata->attr_op->u.app_op)(bt2_udata->loc_id, fh_udata.attr->name, bt2_udata->op_data);
+                ret_value = (bt2_udata->attr_op->u.app_op)(bt2_udata->loc_id, fh_udata.attr->shared->name, bt2_udata->op_data);
                 break;
 #endif /* H5_NO_DEPRECATED_SYMBOLS */
 
@@ -1220,7 +1220,7 @@ H5A_dense_remove_bt2_cb(const void *_record, void *_udata)
     /* Check for removing the link from the creation order index */
     if(H5F_addr_defined(udata->corder_bt2_addr)) {
         /* Set up the user data for the v2 B-tree 'record remove' callback */
-        udata->common.corder = attr->crt_idx;
+        udata->common.corder = attr->shared->crt_idx;
 
         /* Remove the record from the creation order index v2 B-tree */
         if(H5B2_remove(udata->common.f, udata->common.dxpl_id, H5A_BT2_CORDER, udata->corder_bt2_addr, udata, NULL, NULL) < 0)
@@ -1400,7 +1400,7 @@ H5A_dense_remove_by_idx_bt2_cb(const void *_record, void *_bt2_udata)
             other_bt2_class = H5A_BT2_CORDER;
 
             /* Set up the user data for the v2 B-tree 'record remove' callback */
-            other_bt2_udata.corder = fh_udata.attr->crt_idx;
+            other_bt2_udata.corder = fh_udata.attr->shared->crt_idx;
         } /* end if */
         else {
             HDassert(bt2_udata->idx_type == H5_INDEX_CRT_ORDER);
@@ -1413,8 +1413,8 @@ H5A_dense_remove_by_idx_bt2_cb(const void *_record, void *_bt2_udata)
             other_bt2_udata.dxpl_id = bt2_udata->dxpl_id;
             other_bt2_udata.fheap = bt2_udata->fheap;
             other_bt2_udata.shared_fheap = bt2_udata->shared_fheap;
-            other_bt2_udata.name = fh_udata.attr->name;
-            other_bt2_udata.name_hash = H5_checksum_lookup3(fh_udata.attr->name, HDstrlen(fh_udata.attr->name), 0);
+            other_bt2_udata.name = fh_udata.attr->shared->name;
+            other_bt2_udata.name_hash = H5_checksum_lookup3(fh_udata.attr->shared->name, HDstrlen(fh_udata.attr->shared->name), 0);
             other_bt2_udata.found_op = NULL;
             other_bt2_udata.found_op_data = NULL;
         } /* end else */
@@ -1570,7 +1570,7 @@ H5A_dense_remove_by_idx(H5F_t *f, hid_t dxpl_id, const H5O_ainfo_t *ainfo,
             HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid index specified")
 
         /* Delete appropriate attribute from dense storage */
-        if(H5A_dense_remove(f, dxpl_id, ainfo, atable.attrs[n].name) < 0)
+        if(H5A_dense_remove(f, dxpl_id, ainfo, ((atable.attrs[n])->shared)->name) < 0)
             HGOTO_ERROR(H5E_ATTR, H5E_CANTDELETE, FAIL, "unable to delete attribute in dense storage")
     } /* end else */