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f4ac3fc1 | 1 | /* |
bc8d7dfa | 2 | * Copyright (c) 2011, 2016 Nicira, Inc. |
f4ac3fc1 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #ifndef HMAPX_H | |
18 | #define HMAPX_H | |
19 | ||
ee89ea7b | 20 | #include "openvswitch/hmap.h" |
f4ac3fc1 BP |
21 | |
22 | struct hmapx_node { | |
23 | struct hmap_node hmap_node; | |
24 | void *data; | |
25 | }; | |
26 | ||
27 | /* A set of "void *" pointers. */ | |
28 | struct hmapx { | |
29 | struct hmap map; | |
30 | }; | |
31 | ||
32 | #define HMAPX_INITIALIZER(HMAPX) { HMAP_INITIALIZER(&(HMAPX)->map) } | |
33 | ||
34 | /* Basics. */ | |
35 | void hmapx_init(struct hmapx *); | |
36 | void hmapx_destroy(struct hmapx *); | |
37 | void hmapx_clone(struct hmapx *, const struct hmapx *); | |
38 | void hmapx_swap(struct hmapx *, struct hmapx *); | |
39 | void hmapx_moved(struct hmapx *); | |
40 | ||
41 | /* Count. */ | |
42 | bool hmapx_is_empty(const struct hmapx *); | |
43 | size_t hmapx_count(const struct hmapx *); | |
44 | ||
45 | /* Insertion. */ | |
46 | struct hmapx_node *hmapx_add(struct hmapx *, void *); | |
47 | void hmapx_add_assert(struct hmapx *, void *); | |
48 | ||
49 | /* Deletion. */ | |
50 | void hmapx_clear(struct hmapx *); | |
51 | void hmapx_delete(struct hmapx *, struct hmapx_node *); | |
52 | bool hmapx_find_and_delete(struct hmapx *, const void *); | |
53 | void hmapx_find_and_delete_assert(struct hmapx *, const void *); | |
54 | ||
55 | /* Search. */ | |
56 | struct hmapx_node *hmapx_find(const struct hmapx *, const void *); | |
57 | bool hmapx_contains(const struct hmapx *, const void *); | |
58 | bool hmapx_equals(const struct hmapx *, const struct hmapx *); | |
59 | ||
60 | /* Iteration. */ | |
61 | ||
62 | /* Iterates through every hmapx_node in HMAPX. */ | |
bc8d7dfa BP |
63 | #define HMAPX_FOR_EACH(NODE, HMAPX) \ |
64 | HMAP_FOR_EACH_INIT(NODE, hmap_node, &(HMAPX)->map, \ | |
65 | BUILD_ASSERT_TYPE(NODE, struct hmapx_node *), \ | |
66 | BUILD_ASSERT_TYPE(HMAPX, struct hmapx *)) | |
f4ac3fc1 BP |
67 | |
68 | /* Safe when NODE may be freed (not needed when NODE may be removed from the | |
69 | * hash map but its members remain accessible and intact). */ | |
bc8d7dfa BP |
70 | #define HMAPX_FOR_EACH_SAFE(NODE, NEXT, HMAPX) \ |
71 | HMAP_FOR_EACH_SAFE_INIT(NODE, NEXT, hmap_node, &(HMAPX)->map, \ | |
72 | BUILD_ASSERT_TYPE(NODE, struct hmapx_node *), \ | |
73 | BUILD_ASSERT_TYPE(NEXT, struct hmapx_node *), \ | |
74 | BUILD_ASSERT_TYPE(HMAPX, struct hmapx *)) | |
f4ac3fc1 BP |
75 | |
76 | #endif /* hmapx.h */ |