1/*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#ifndef INIT_HASH_MAP_
16#define INIT_HASH_MAP_
17#include <stdint.h>
18#include <stdlib.h>
19#include <string.h>
20
21#ifdef __cplusplus
22#if __cplusplus
23extern "C" {
24#endif
25#endif
26
27#define HASH_TAB_BUCKET_MAX 1024
28#define HASH_TAB_BUCKET_MIN 16
29
30typedef struct HashNode_ {
31    struct HashNode_ *next;
32} HashNode;
33
34#define HASHMAP_ENTRY(ptr, type, member)   ((type *)((char *)(ptr) - offsetof(type, member)))
35#define HASHMAPInitNode(node) (node)->next = NULL
36
37typedef int (*HashNodeCompare)(const HashNode *node1, const HashNode *node2);
38typedef int (*HashKeyCompare)(const HashNode *node1, const void *key);
39typedef int (*HashNodeFunction)(const HashNode *node);
40typedef int (*HashKeyFunction)(const void *key);
41typedef void (*HashNodeOnFree)(const HashNode *node, void *context);
42
43typedef struct {
44    HashNodeCompare nodeCompare;
45    HashKeyCompare keyCompare;
46    HashNodeFunction nodeHash;
47    HashKeyFunction keyHash;
48    HashNodeOnFree nodeFree;
49    int maxBucket;
50} HashInfo;
51
52typedef void *HashMapHandle;
53
54int OH_HashMapIsEmpty(HashMapHandle handle);
55int32_t OH_HashMapCreate(HashMapHandle *handle, const HashInfo *info);
56void OH_HashMapDestory(HashMapHandle handle, void *context);
57int32_t OH_HashMapAdd(HashMapHandle handle, HashNode *hashNode);
58void OH_HashMapRemove(HashMapHandle handle, const void *key);
59HashNode *OH_HashMapGet(HashMapHandle handle, const void *key);
60HashNode *OH_HashMapFind(HashMapHandle handle,
61    int hashCode, const void *key, HashKeyCompare keyCompare);
62void OH_HashMapTraverse(HashMapHandle handle, void (*hashNodeTraverse)(const HashNode *node, const void *context),
63    const void *context);
64#ifdef __cplusplus
65#if __cplusplus
66}
67#endif
68#endif
69#endif