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Code Issues Releases Wiki Activity

fix: 修正未暴露delete接口的问题

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This commit is contained in:
fslongjin 2022-07-26 10:29:36 +08:00
parent 870ae59646
commit a704fe5cfe
2 changed files with 41 additions and 6 deletions
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20
kernel/common/bitree.c
View File

@ -12,9 +12,10 @@
* *
* @param node 根节点 * @param node 根节点
* @param cmp 比较函数 * @param cmp 比较函数
* @param release 用来释放结点的value的函数
* @return struct bt_root_t* 树根结构体 * @return struct bt_root_t* 树根结构体
*/ */
struct bt_root_t *bt_create_tree(struct bt_node_t *node, int (*cmp)(struct bt_node_t *a, struct bt_node_t *b)) struct bt_root_t *bt_create_tree(struct bt_node_t *node, int (*cmp)(struct bt_node_t *a, struct bt_node_t *b), int (*release)(void *value))
{ {
if (node == NULL || cmp == NULL) if (node == NULL || cmp == NULL)
return -EINVAL; return -EINVAL;
@ -23,6 +24,8 @@ struct bt_root_t *bt_create_tree(struct bt_node_t *node, int (*cmp)(struct bt_no
memset((void *)root, 0, sizeof(struct bt_root_t)); memset((void *)root, 0, sizeof(struct bt_root_t));
root->bt_node = node; root->bt_node = node;
root->cmp = cmp; root->cmp = cmp;
root->release = release;
root->size = (node == NULL) ? 0 : 1;
return root; return root;
} }
@ -86,7 +89,7 @@ int bt_insert(struct bt_root_t *root, void *value)
else else
last_node->right = insert_node; last_node->right = insert_node;
} }
++root->size;
return 0; return 0;
failed:; failed:;
@ -181,6 +184,19 @@ int bt_delete(struct bt_root_t *root, void *value)
to_delete->parent->right = to_delete_son; to_delete->parent->right = to_delete_son;
} }
--root->size;
// 释放最终要删除的结点的对象 // 释放最终要删除的结点的对象
kfree(to_delete); kfree(to_delete);
} }
/**
* @brief 释放整个二叉搜索树
*
* @param root 树的根节点
* @return int 错误码
*/
int bt_destroy_tree(struct bt_root_t *root)
{
// todo: 待kfifo完成后，使用kfifo队列来辅助destroy
return -1;
}

21
kernel/common/bitree.h
View File

@ -13,6 +13,7 @@ struct bt_node_t
struct bt_root_t struct bt_root_t
{ {
struct bt_node_t *bt_node; struct bt_node_t *bt_node;
int32_t size; // 树中的元素个数
int (*cmp)(struct bt_node_t *a, struct bt_node_t *b); // 比较函数 a>b 返回1， a==b返回0, a<b返回-1 int (*cmp)(struct bt_node_t *a, struct bt_node_t *b); // 比较函数 a>b 返回1， a==b返回0, a<b返回-1
/** /**
* @brief 释放结点的value的函数 * @brief 释放结点的value的函数
@ -26,9 +27,10 @@ struct bt_root_t
* *
* @param node 根节点 * @param node 根节点
* @param cmp 比较函数 * @param cmp 比较函数
* @param release 用来释放结点的value的函数
* @return struct bt_root_t* 树根结构体 * @return struct bt_root_t* 树根结构体
*/ */
struct bt_root_t *bt_create_tree(struct bt_node_t *node, int (*cmp)(struct bt_node_t *a, struct bt_node_t *b)); struct bt_root_t *bt_create_tree(struct bt_node_t *node, int (*cmp)(struct bt_node_t *a, struct bt_node_t *b), int (*release)(void *value));
/** /**
* @brief 创建结点 * @brief 创建结点
@ -58,3 +60,20 @@ int bt_insert(struct bt_root_t *root, void *value);
* @return int 错误码 * @return int 错误码
*/ */
int bt_query(struct bt_root_t *root, void *value, uint64_t *ret_addr); int bt_query(struct bt_root_t *root, void *value, uint64_t *ret_addr);
/**
* @brief 删除结点
*
* @param root 树根
* @param value 待删除结点的值
* @return int 返回码
*/
int bt_delete(struct bt_root_t *root, void *value);
/**
* @brief 释放整个二叉搜索树
*
* @param root
* @return int
*/
int bt_destroy_tree(struct bt_root_t *root);