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authorSebastian Huber <sebastian.huber@embedded-brains.de>2014-07-21 18:29:00 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2014-07-22 12:31:41 +0200
commit8abbbdde38bdbe9c8d2735bcb5f6e19880731055 (patch)
tree8c93a656c7d585ac606c95616624a82fa95b20c4
parentrbtree: Remove superfluous NULL pointer checks (diff)
downloadrtems-8abbbdde38bdbe9c8d2735bcb5f6e19880731055.tar.bz2
rbtree: Do not set node off-tree in extract
-rw-r--r--cpukit/score/include/rtems/score/rbtree.h11
-rw-r--r--cpukit/score/src/rbtreeextract.c3
-rw-r--r--testsuites/sptests/sprbtree01/init.c9
3 files changed, 14 insertions, 9 deletions
diff --git a/cpukit/score/include/rtems/score/rbtree.h b/cpukit/score/include/rtems/score/rbtree.h
index 7c88326ba4..b3f2ed4c0d 100644
--- a/cpukit/score/include/rtems/score/rbtree.h
+++ b/cpukit/score/include/rtems/score/rbtree.h
@@ -241,9 +241,16 @@ RBTree_Node *_RBTree_Insert(
);
/**
- * @brief Extracts (removes) @a the_node from @a the_rbtree.
+ * @brief Extracts (removes) the node from the red-black tree.
*
- * This routine extracts (removes) @a the_node from @a the_rbtree.
+ * This function does not set the node off-tree. In case this is desired, then
+ * call _RBTree_Set_off_rbtree() after the extraction.
+ *
+ * In case the node to extract is not a node of the tree, then this function
+ * yields unpredictable results.
+ *
+ * @param[in] the_rbtree The red-black tree control.
+ * @param[in] the_node The node to extract.
*/
void _RBTree_Extract(
RBTree_Control *the_rbtree,
diff --git a/cpukit/score/src/rbtreeextract.c b/cpukit/score/src/rbtreeextract.c
index 0ea805bd59..a1896a960e 100644
--- a/cpukit/score/src/rbtreeextract.c
+++ b/cpukit/score/src/rbtreeextract.c
@@ -202,9 +202,6 @@ void _RBTree_Extract(
}
}
- /* Wipe the_node */
- _RBTree_Set_off_rbtree( the_node );
-
/* set root to black, if it exists */
if ( the_rbtree->root )
the_rbtree->root->color = RBT_BLACK;
diff --git a/testsuites/sptests/sprbtree01/init.c b/testsuites/sptests/sprbtree01/init.c
index ca790959cd..956271b325 100644
--- a/testsuites/sptests/sprbtree01/init.c
+++ b/testsuites/sptests/sprbtree01/init.c
@@ -140,6 +140,9 @@ rtems_task Init(
puts( "Init - Initialize rbtree empty" );
rtems_rbtree_initialize_empty( &rbtree1 );
+ rtems_rbtree_set_off_rbtree( &node1.Node );
+ rtems_test_assert( rtems_rbtree_is_node_off_rbtree( &node1.Node ) );
+
/* verify that the rbtree insert work */
puts( "INIT - Verify rtems_rbtree_insert with two nodes" );
node1.id = 1;
@@ -149,6 +152,7 @@ rtems_task Init(
rb_insert_unique( &rbtree1, &node1.Node );
rb_insert_unique( &rbtree1, &node2.Node );
+ rtems_test_assert( !rtems_rbtree_is_node_off_rbtree( &node1.Node ) );
_RBTree_Rotate(NULL, RBT_LEFT);
i = (node1.Node.parent == &node2.Node);
@@ -261,6 +265,7 @@ rtems_task Init(
puts( "INIT - rtems_rbtree_extract failed");
rtems_test_exit(0);
}
+ rtems_test_assert( !rtems_rbtree_is_node_off_rbtree( p ) );
rb_insert_unique(&rbtree1, p);
for ( p = rtems_rbtree_get_min(&rbtree1), id = 1 ; p ;
@@ -520,10 +525,6 @@ rtems_task Init(
rtems_test_exit(0);
}
- if (rtems_rbtree_find_header(&node_array[0].Node) != NULL) {
- puts ("INIT - ERROR ON RBTREE HEADER MISMATCH");
- rtems_test_exit(0);
- }
if (rtems_rbtree_find_header(NULL) != NULL) {
puts ("INIT - ERROR ON RBTREE HEADER MISMATCH");
rtems_test_exit(0);