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| author | Gedare Bloom <gedare@rtems.org> | 2012-05-03 12:43:29 -0400 |
|---|---|---|
| committer | Gedare Bloom <gedare@rtems.org> | 2012-05-08 18:40:44 -0400 |
| commit | f53aa8d3026eb97e3c67e44a1c931442dbc95010 (patch) | |
| tree | 070391bda95c04c9a8b5d4e9489f4c0788c0e05f /cpukit/score/include/rtems/score/rbtree.h | |
| parent | PR2061: RBTree: updating min and max on insert with duplicates (diff) | |
| download | rtems-f53aa8d3026eb97e3c67e44a1c931442dbc95010.tar.bz2 | |
rbtree: API changes. Remove rbtree control node from RBTree_Next.
The implementation of RBTree_Next was using an awkward construction to detect
and avoid accessing the false root of the red-black tree. To deal with the
false root, RBTree_Next was comparing node parents with the control node.
Instead the false root can be detected by checking if the grandparent of a
node exists; the grandparent of the tree's true root is NULL by definition
so the root of the tree is found while walking up the tree by checking for
the non-existence of a grandparent.
This change propagates into the predecessor/successor and iterate functions.
Diffstat (limited to 'cpukit/score/include/rtems/score/rbtree.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/rbtree.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/cpukit/score/include/rtems/score/rbtree.h b/cpukit/score/include/rtems/score/rbtree.h index d98392e872..b3cfc45fa3 100644 --- a/cpukit/score/include/rtems/score/rbtree.h +++ b/cpukit/score/include/rtems/score/rbtree.h @@ -307,7 +307,6 @@ void _RBTree_Extract( /** * @brief Returns the in-order next node of a node. * - * @param[in] rbtree The red-black tree. * @param[in] node The node. * @param[in] dir The direction. * @@ -315,7 +314,6 @@ void _RBTree_Extract( * @retval otherwise The next node. */ RBTree_Node *_RBTree_Next_unprotected( - const RBTree_Control *rbtree, const RBTree_Node *node, RBTree_Direction dir ); @@ -326,7 +324,6 @@ RBTree_Node *_RBTree_Next_unprotected( * The function disables the interrupts protect the operation. */ RBTree_Node *_RBTree_Next( - const RBTree_Control *rbtree, const RBTree_Node *node, RBTree_Direction dir ); |