feat 新的运行时环境
This commit is contained in:
123
runtime/libutils/include/hashtable.h
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123
runtime/libutils/include/hashtable.h
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/**
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* @file hashtable.h
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* @brief 开放寻址法哈希表实现
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*
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* 提供基于向量容器的哈希表实现,支持动态扩容和墓碑机制
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*/
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#ifndef __SMCC_HASHTABLE_H__
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#define __SMCC_HASHTABLE_H__
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#include <libcore.h>
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#include "vector.h"
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/**
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* @enum ht_entry_state_t
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* @brief 哈希表条目状态标识
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*/
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typedef enum hash_table_entry_state {
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ENTRY_EMPTY, /**< 空槽位(从未使用过) */
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ENTRY_ACTIVE, /**< 有效条目(包含键值对) */
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ENTRY_TOMBSTONE /**< 墓碑标记(已删除条目) */
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} ht_entry_state_t;
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/**
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* @struct hash_entry_t
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* @brief 哈希表条目结构
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*
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* @note key/value内存由调用者管理,哈希表不负责其生命周期
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*/
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typedef struct hash_entry {
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const void* key; /**< 键指针(不可变) */
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void* value; /**< 值指针 */
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u32 hash; /**< 预计算的哈希值(避免重复计算) */
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ht_entry_state_t state; /**< 当前条目状态 */
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} hash_entry_t;
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/**
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* @struct hash_table_t
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* @brief 哈希表主体结构
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*
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* 使用开放寻址法实现,采用墓碑标记处理删除操作
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*/
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typedef struct hash_table {
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VECTOR_HEADER(entries, hash_entry_t); /**< 条目存储容器 */
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u32 count; /**< 有效条目数量(不含墓碑) */
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u32 tombstone_count; /**< 墓碑条目数量 */
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/**
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* @brief 哈希函数指针
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* @param key 键指针
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* @return 32位无符号哈希值
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*/
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u32 (*hash_func)(const void* key);
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/**
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* @brief 键比较函数指针
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* @param key1 第一个键指针
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* @param key2 第二个键指针
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* @return 相同返回0,不同返回非0
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*/
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int(*key_cmp)(const void* key1, const void* key2);
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} hash_table_t;
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/**
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* @brief 初始化哈希表结构
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* @param ht 哈希表实例指针
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*
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* @warning 必须设置hash_func和key_cmp后才能使用
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*/
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void init_hashtable(hash_table_t* ht);
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/**
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* @brief 插入/更新键值对
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* @param ht 哈希表实例指针
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* @param key 键指针
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* @param value 值指针
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* @return 被替换的旧值指针(无替换返回NULL)
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*/
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void* hashtable_set(hash_table_t* ht, const void* key, void* value);
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/**
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* @brief 查找键对应值
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* @param ht 哈希表实例指针
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* @param key 查找键指针
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* @return 找到返回值指针,未找到返回NULL
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*/
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void* hashtable_get(hash_table_t* ht, const void* key);
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/**
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* @brief 删除键值对
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* @param ht 哈希表实例指针
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* @param key 要删除的键指针
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* @return 被删除的值指针(不存在返回NULL)
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*
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* @note 实际采用墓碑标记方式删除
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*/
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void* hashtable_del(hash_table_t* ht, const void* key);
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/**
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* @brief 销毁哈希表
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* @param ht 哈希表实例指针
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*
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* @note 仅释放哈希表内部内存,不会释放key/value内存
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*/
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void hashtable_destory(hash_table_t* ht);
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/**
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* @typedef hash_table_iter_func
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* @brief 哈希表迭代回调函数类型
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* @param key 当前键指针
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* @param value 当前值指针
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* @param context 用户上下文指针
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* @return 返回非0停止迭代
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*/
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typedef int (*hash_table_iter_func)(const void* key, void* value, void* context);
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/**
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* @brief 遍历哈希表所有有效条目
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* @param ht 哈希表实例指针
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* @param iter_func 迭代回调函数
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* @param context 用户上下文指针
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*/
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void hashtable_foreach(hash_table_t* ht, hash_table_iter_func iter_func, void* context);
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#endif // __SMCC_HASHTABLE_H__
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158
runtime/libutils/include/kllist.h
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158
runtime/libutils/include/kllist.h
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/**
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* kllist.h is a list implement by linux kernel list
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* @link https://njusecourse.feishu.cn/wiki/I8vkw2zkwiEInUkujTJc7zzOnwf
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* @link https://kernelnewlbies.org/FAQ/LinkedLists
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* @link https://lwn.net/Articles/887097/
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* @link https://liuluheng.github.io/wiki/public_html/Embedded-System/kernel/list-and-hlist.html
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*/
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#ifndef __KLLIST_H__
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#define __KLLIST_H__
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#ifndef NULL
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#define NULL (0)
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#define __NULL_KLIST_DEFINED__
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#endif
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#ifndef container_of
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// Magic: https://radek.io/posts/magical-container_of-macro/
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// StackOverflow: https://stackoverflow.com/q/15832301/1833118
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#ifdef __GNUC__
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#define container_of(ptr, type, member) ({ \
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const typeof( ((type *)0)->member ) *__mptr = (ptr); \
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(type *)( (char *)__mptr - offsetof(type,member) );})
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#else
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#define container_of(ptr, type, member) ({ \
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const void *__mptr = (ptr); \
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(type *)( (char *)__mptr - offsetof(type,member) );})
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#endif
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#endif
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/**
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* used by list
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*/
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struct list_head {
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struct list_head *next, *prev;
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};
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/**
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* list init
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* @example
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* 1. struct list_head your_list = LIST_HEAD_INIT(your_list);
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* 2. struct list_head your_list; INIT_LIST_HEAD(&your_list);
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* 3. LIST_HEAD(your_list); => struct your_list = { &(your_list), &(your_list) };
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*/
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#define LIST_HEAD_INIT(name) { &(name), &(name) }
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static inline void INIT_LIST_HEAD(struct list_head *list) {
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list->next = list;
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list->prev = list;
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}
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#define LIST_HEAD(name) \
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struct list_head name = LIST_HEAD_INIT(name)
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/**
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* list add
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*/
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static inline void __list_add(struct list_head *newl,
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struct list_head *prev,
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struct list_head *next) {
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next->prev = newl;
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newl->next = next;
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newl->prev = prev;
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prev->next = newl;
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}
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static inline void list_add(struct list_head *newl, struct list_head *head) {
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__list_add(newl, head, head->next);
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}
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static inline void list_add_tail(struct list_head *newl, struct list_head *head) {
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__list_add(newl, head->prev, head);
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}
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/**
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* list delete
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*/
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static inline void __list_del(struct list_head * prev, struct list_head * next) {
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next->prev = prev;
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prev->next = next;
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}
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static inline void list_del(struct list_head *entry) {
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__list_del(entry->prev, entry->next);
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entry->next = NULL;
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entry->prev = NULL;
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}
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/**
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* list_is_first -- tests whether @list is the first entry in list @head
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* @list: the entry to test
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* @head: the head of the list
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*/
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static inline int list_is_first(const struct list_head *list, const struct list_head *head) {
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return list->prev == head;
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}
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/**
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* list_is_last - tests whether @list is the last entry in list @head
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* @list: the entry to test
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* @head: the head of the list
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*/
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static inline int list_is_last(const struct list_head *list, const struct list_head *head) {
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return list->next == head;
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}
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/**
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* list_is_head - tests whether @list is the list @head
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* @list: the entry to test
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* @head: the head of the list
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*/
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static inline int list_is_head(const struct list_head *list, const struct list_head *head) {
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return list == head;
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}
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/**
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* list_empty - tests whether a list is empty
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* @head: the list to test.
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*/
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static inline int list_empty(const struct list_head *head) {
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return head->next == head;
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}
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/**
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* list_for_each - iterate over a list
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* @pos: the &struct list_head to use as a loop cursor.
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* @head: the head for your list.
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*/
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#define list_for_each(pos, head) \
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for (pos = (head)->next; !list_is_head(pos, (head)); pos = pos->next)
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/**
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* list_for_each_prev - iterate over a list backwards
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* @pos: the &struct list_head to use as a loop cursor.
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* @head: the head for your list.
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*/
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#define list_for_each_prev(pos, head) \
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for (pos = (head)->prev; !list_is_head(pos, (head)); pos = pos->prev)
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/**
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* list sort
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* by linux kernel 6.3.1 /lib/list_sort.c
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* it remain use sigle linked list to merge sort
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* @link https://www.geeksforgeeks.org/merge-sort-for-linked-list/
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*/
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#ifdef HAVE_KLIST_SORT
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typedef int (*list_cmp_func_t)(void *,
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const struct list_head *, const struct list_head *);
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static void list_sort(void *priv, struct list_head *head, list_cmp_func_t cmp);
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#endif
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#if defined(__NULL_KLIST_DEFINED__) && !defined(__NULL_KLIST_DEFINED_NOMOVE__)
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#undef NULL
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#endif
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#endif
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11
runtime/libutils/include/libutils.h
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11
runtime/libutils/include/libutils.h
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#ifndef __SMCC_UTILS_H__
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#define __SMCC_UTILS_H__
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#include <libcore.h>
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#include "vector.h"
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#include "kllist.h"
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#include "hashtable.h"
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#include "string.h"
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#include "strpool.h"
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#endif // __SMCC_UTILS_H__
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51
runtime/libutils/include/strpool.h
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51
runtime/libutils/include/strpool.h
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@@ -0,0 +1,51 @@
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/**
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* @file strpool.h
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* @brief 字符串池实现
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*
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* 提供字符串驻留(String Interning)功能,保证相同字符串的唯一性存储
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*/
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#ifndef __SMCC_STRPOOL_H__
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#define __SMCC_STRPOOL_H__
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#include <libcore.h>
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#include "hashtable.h"
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#include "string.h"
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/**
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* @struct strpool_t
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* @brief 字符串池上下文
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*
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* 组合哈希表和专用内存分配器实现的高效字符串存储池
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*/
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typedef struct strpool {
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hash_table_t ht; /**< 哈希表用于快速查找已存储字符串 */
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} strpool_t;
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/**
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* @brief 初始化字符串池
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* @param pool 字符串池实例指针
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*/
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void init_strpool(strpool_t* pool);
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/**
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* @brief 驻留字符串到池中
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* @param pool 字符串池实例指针
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* @param str 要驻留的 C 字符串
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* @return 池中唯一字符串的持久指针
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*
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* @note 返回值生命周期与字符串池一致
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* @note 重复插入相同字符串会返回已有指针
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*/
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const char* strpool_intern(strpool_t* pool, const char* str);
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/**
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* @brief 销毁字符串池
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* @param pool 字符串池实例指针
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*
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* @warning 销毁后已获取的字符串指针将失效
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* @note 会自动释放所有驻留字符串内存
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*/
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void strpool_destroy(strpool_t* pool);
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#endif // __SMCC_STRPOOL_H__
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119
runtime/libutils/include/vector.h
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119
runtime/libutils/include/vector.h
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@@ -0,0 +1,119 @@
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/**
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* @file vector.h
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* @brief 动态数组(Vector)实现
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*
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* 提供类型安全的动态数组容器实现,支持自动扩容和基本操作
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*/
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#ifndef __SMCC_DS_VECTOR_H__
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#define __SMCC_DS_VECTOR_H__
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#include <libcore.h>
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#define __vec_realloc smcc_realloc
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#define __vec_free smcc_free
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/** @defgroup vector_struct 数据结构定义 */
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/**
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* @def VECTOR_HEADER(name, type)
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* @brief 声明向量结构体
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* @param name 结构体变量名
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* @param type 存储的数据类型
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*
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* 生成包含size/cap/data三个字段的结构体定义:
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* - size: 当前元素数量
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* - cap: 数组容量
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* - data: 存储数组指针
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*/
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#define VECTOR_HEADER(name, type) \
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struct { \
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isize size; /**< 当前元素数量 */ \
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isize cap; /**< 数组容量 */ \
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type *data; /**< 数据存储指针 */ \
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} name
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/** @defgroup vector_operations 向量操作宏 */
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/**
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* @def vector_init(vec)
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* @brief 初始化向量结构体
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* @param vec 要初始化的向量结构体变量
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*
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* @note 此宏不会分配内存,仅做零初始化
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*/
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#define vector_init(vec) \
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do { \
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(vec).size = 0, \
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(vec).cap = 0, \
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(vec).data = 0; \
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} while(0)
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/**
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* @def vector_push(vec, value)
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* @brief 添加元素到向量末尾
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* @param vec 目标向量结构体
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* @param value 要添加的值(需匹配存储类型)
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*
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* @note 当容量不足时自动扩容为2倍(初始容量为8)
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* @warning 内存分配失败时会触发LOG_FATAL
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*/
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#define vector_push(vec, value) \
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do { \
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if (vec.size >= vec.cap) { \
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int cap = vec.cap ? vec.cap * 2 : 8; \
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void* data = __vec_realloc(vec.data, cap * sizeof(*vec.data)); \
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if (!data) { \
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LOG_FATAL("vector_push: rt_realloc failed\n"); \
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} \
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(vec).cap = cap; \
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(vec).data = data; \
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} \
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(vec).data[(vec).size++] = value; \
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} while(0)
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/**
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* @def vector_pop(vec)
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* @brief 弹出最后一个元素
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* @param vec 目标向量结构体
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* @return 最后元素的引用
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||||
* @warning 需确保size > 0时使用
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||||
*/
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#define vector_pop(vec) \
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((vec).data[--(vec).size])
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||||
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||||
/**
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||||
* @def vector_at(vec, idx)
|
||||
* @brief 获取指定索引元素
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||||
* @param vec 目标向量结构体
|
||||
* @param idx 元素索引(0 <= idx < size)
|
||||
* @return 对应元素的引用
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||||
*/
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||||
#define vector_at(vec, idx) \
|
||||
(((vec).data)[idx])
|
||||
|
||||
/**
|
||||
* @def vector_idx(vec, ptr)
|
||||
* @brief 获取元素指针对应的索引
|
||||
* @param vec 目标向量结构体
|
||||
* @param ptr 元素指针(需在data数组范围内)
|
||||
* @return 元素索引值
|
||||
*/
|
||||
#define vector_idx(vec, ptr) \
|
||||
((ptr) - (vec).data)
|
||||
|
||||
/**
|
||||
* @def vector_free(vec)
|
||||
* @brief 释放向量内存
|
||||
* @param vec 目标向量结构体
|
||||
*
|
||||
* @note 释放后需重新初始化才能再次使用
|
||||
*/
|
||||
#define vector_free(vec) \
|
||||
do { \
|
||||
__vec_free((vec).data); \
|
||||
(vec).data = NULL; \
|
||||
(vec).size = (vec).cap = 0; \
|
||||
} while(0)
|
||||
|
||||
#endif // __SMCC_DS_VECTOR_H__
|
||||
Reference in New Issue
Block a user