libc/bionic/tdestroy.c

/*
 * Copyright 2012, The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define _SEARCH_PRIVATE
#include <search.h>
#include <stdlib.h>

/* destroy a tree and free all allocated resources */
void
tdestroy(void *root, void (*destroy_func)(void *))
{
    node_t *root_node = (node_t *) root;
    if (root_node == NULL) return;
    if (root_node->llink)
        tdestroy(root_node->llink, destroy_func);
    if (root_node->rlink)
        tdestroy(root_node->rlink, destroy_func);
    (*destroy_func)(root_node->key);
    free(root);
}