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/**
* @file
*
* @ingroup RTEMSScoreRBTree
*
* @brief _RBTree_Replace_node() implementation.
*/
/*
* Copyright (c) 2015 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/rbtree.h>
void _RBTree_Replace_node(
RBTree_Control *the_rbtree,
RBTree_Node *victim,
RBTree_Node *replacement
)
{
RBTree_Node *parent = _RBTree_Parent( victim );
RBTree_Node **link;
RBTree_Node *child;
if (parent != NULL) {
if ( victim == _RBTree_Left( parent ) ) {
link = _RBTree_Left_reference( parent );
} else {
link = _RBTree_Right_reference( parent );
}
} else {
link = _RBTree_Root_reference( the_rbtree );
}
*link = replacement;
child = _RBTree_Left( victim );
if ( child != NULL ) {
RB_PARENT( child, Node ) = replacement;
}
child = _RBTree_Right( victim );
if ( child != NULL ) {
RB_PARENT( child, Node ) = replacement;
}
*replacement = *victim;
}
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