addresses #523

address more CR comments from previous checkin

git-svn-id: file:///svn/tokudb@2792 c7de825b-a66e-492c-adef-691d508d4ae1

src/range_tree/log_nooverlap.c

@@ -368,7 +368,7 @@ void toku_rt_start_scan (toku_range_tree* range_tree) {
     return;
 }
 
-int toku_rt_next (toku_range_tree* range_tree, toku_range* out_range) {
+int toku_rt_next (toku_range_tree* range_tree, toku_range* out_range, BOOL* elem_found) {
     int r = ENOSYS;
     toku_range* ret_range = NULL;
     struct toku_rbt_node* ignore_insert = NULL;
@@ -393,9 +393,10 @@ int toku_rt_next (toku_range_tree* range_tree, toku_range* out_range) {
         if (r != 0) { goto cleanup; }
     }
 
-    out_range->left = ret_range->left;
-    out_range->right = ret_range->right;
-    out_range->data = ret_range->data;
+    if (ret_range) {
+        *elem_found = TRUE;
+        *out_range = *ret_range;
+    }
     r = 0;
     
 cleanup:

src/range_tree/rangetree.h

@@ -226,6 +226,6 @@ int toku_rt_get_size(toku_range_tree* tree, u_int32_t* size);
 
 void toku_rt_start_scan (toku_range_tree* range_tree);
 
-int toku_rt_next (toku_range_tree* range_tree, toku_range* out_range);
+int toku_rt_next (toku_range_tree* range_tree, toku_range* out_range, BOOL* elem_found);
 
 #endif  /* #if !defined(TOKU_RANGE_TREE_H) */