/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSScoreRBTree
*
* @brief This source file contains the implementation of
* _RBTree_Replace_node().
*/
/*
* Copyright (c) 2015 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef 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;
}
