static void setup(void)
{
xtree_init(&mytree_empty, NULL);
init_by_addchild();
}
/* here we construct a tree in the following form :
* 1
* / / \ \
* 6 2 3 5
* / \
* 7 4
* numbers are chronological adding order.
*/
void addchild_walk_test()
{
xtree_t *my_tree = (xtree_t *)xmalloc(sizeof(xtree_t));
person_t *person = NULL;
person_t *direct_parent_person = NULL;
person_t *parent_of_delete_person = NULL;
char buf[256];
xtree_node_t* node = NULL;
xtree_node_t* direct_parent_node = NULL;
xtree_node_t* parent_of_delete_node = NULL;
uint32_t arg = 0;
int i;
/* init my_tree with free element function */
xtree_init(my_tree, xtree_free_node_func);
for (i = 1; i < 8; i++) {
person = (person_t *)xmalloc(sizeof(person_t));
person->id = i;
person->age = i;
snprintf(buf, 256, "name_%d", i);
person->name = xstrdup(buf);
if (1 == i)
xtree_add_child(my_tree, NULL, person, XTREE_APPEND);
else if (2 == i)
xtree_add_child(my_tree, my_tree->root, person, XTREE_APPEND);
else if (3 == i)
xtree_add_child(my_tree, my_tree->root, person, XTREE_APPEND);
else if (4 == i) /* my_tree->root is 1, then 1's ->start is 2 */
xtree_add_child(my_tree, my_tree->root->start, person, XTREE_APPEND);
else if (5 == i)
xtree_add_child(my_tree, my_tree->root, person, XTREE_APPEND);
else if (6 == i)
xtree_add_child(my_tree, my_tree->root, person, XTREE_PREPEND);
else if (7 == i) /* my_tree->root is 1, then 1's ->start is 2 */ /* XTREE_PREPEND */
xtree_add_child(my_tree, my_tree->root->start->next, person, XTREE_PREPEND);
}
arg = 4;
node = xtree_find(my_tree, find_compare_func, &arg);
if (NULL != node) {
person = (person_t *) node->data;
puts("xtree_find success!, my info: ");
printf("person->id = %lu\n", person->id);
printf("person->age = %lu\n", person->age);
printf("person->name = %s\n", person->name);
/* print person's depth */
printf("person\'s depth = %lu\n", xtree_node_depth(node));
puts("my parent\'s info: ");
direct_parent_node = xtree_get_parent(my_tree, node);
direct_parent_person = (person_t *) direct_parent_node->data;
printf("direct_parent_person->id = %lu\n", direct_parent_person->id);
printf("direct_parent_person->age = %lu\n", direct_parent_person->age);
printf("direct_parent_person->name = %s\n", direct_parent_person->name);
/* print parent's depth */
printf("parent's depth = %lu\n", xtree_node_depth(direct_parent_person));
puts("try to delete the parent node (2):");
parent_of_delete_node = xtree_delete(my_tree, direct_parent_node);
parent_of_delete_person = (person_t *)parent_of_delete_node->data;
printf("parent_of_delete_person->id = %lu\n", parent_of_delete_person->id);
printf("parent_of_delete_person->age = %lu\n", parent_of_delete_person->age);
printf("parent_of_delete_person->name = %s\n", parent_of_delete_person->name);
}
puts("at last, free all nodes in the tree:");
/* to free element */
xtree_free(my_tree);
/* to free my_tree itself memory */
xfree(my_tree);
}
