Tue, 26 Nov 2024 10:40:45 +0100
add context menu, implement 'Select All'
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
1 | /* |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
3 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
4 | * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
5 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
6 | * Redistribution and use in source and binary forms, with or without |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
7 | * modification, are permitted provided that the following conditions are met: |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
8 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
9 | * 1. Redistributions of source code must retain the above copyright |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
10 | * notice, this list of conditions and the following disclaimer. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
11 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
12 | * 2. Redistributions in binary form must reproduce the above copyright |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
13 | * notice, this list of conditions and the following disclaimer in the |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
14 | * documentation and/or other materials provided with the distribution. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
15 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
26 | * POSSIBILITY OF SUCH DAMAGE. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
27 | */ |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
28 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
29 | #include "cx/hash_map.h" |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
30 | #include "cx/utils.h" |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
31 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
32 | #include <string.h> |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
33 | #include <assert.h> |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
34 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
35 | struct cx_hash_map_element_s { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
36 | /** A pointer to the next element in the current bucket. */ |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
37 | struct cx_hash_map_element_s *next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
38 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
39 | /** The corresponding key. */ |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
40 | CxHashKey key; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
41 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
42 | /** The value data. */ |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
43 | char data[]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
44 | }; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
45 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
46 | static void cx_hash_map_clear(struct cx_map_s *map) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
47 | struct cx_hash_map_s *hash_map = (struct cx_hash_map_s *) map; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
48 | cx_for_n(i, hash_map->bucket_count) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
49 | struct cx_hash_map_element_s *elem = hash_map->buckets[i]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
50 | if (elem != NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
51 | do { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
52 | struct cx_hash_map_element_s *next = elem->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
53 | // invoke the destructor |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
54 | cx_invoke_destructor(map, elem->data); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
55 | // free the key data |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
56 | cxFree(map->collection.allocator, (void *) elem->key.data); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
57 | // free the node |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
58 | cxFree(map->collection.allocator, elem); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
59 | // proceed |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
60 | elem = next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
61 | } while (elem != NULL); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
62 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
63 | // do not leave a dangling pointer |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
64 | hash_map->buckets[i] = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
65 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
66 | } |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
67 | map->collection.size = 0; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
68 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
69 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
70 | static void cx_hash_map_destructor(struct cx_map_s *map) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
71 | struct cx_hash_map_s *hash_map = (struct cx_hash_map_s *) map; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
72 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
73 | // free the buckets |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
74 | cx_hash_map_clear(map); |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
75 | cxFree(map->collection.allocator, hash_map->buckets); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
76 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
77 | // free the map structure |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
78 | cxFree(map->collection.allocator, map); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
79 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
80 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
81 | static int cx_hash_map_put( |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
82 | CxMap *map, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
83 | CxHashKey key, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
84 | void *value |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
85 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
86 | struct cx_hash_map_s *hash_map = (struct cx_hash_map_s *) map; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
87 | const CxAllocator *allocator = map->collection.allocator; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
88 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
89 | unsigned hash = key.hash; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
90 | if (hash == 0) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
91 | cx_hash_murmur(&key); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
92 | hash = key.hash; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
93 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
94 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
95 | size_t slot = hash % hash_map->bucket_count; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
96 | struct cx_hash_map_element_s *elm = hash_map->buckets[slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
97 | struct cx_hash_map_element_s *prev = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
98 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
99 | while (elm != NULL && elm->key.hash < hash) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
100 | prev = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
101 | elm = elm->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
102 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
103 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
104 | if (elm != NULL && elm->key.hash == hash && elm->key.len == key.len && |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
105 | memcmp(elm->key.data, key.data, key.len) == 0) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
106 | // overwrite existing element |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
107 | if (map->collection.store_pointer) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
108 | memcpy(elm->data, &value, sizeof(void *)); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
109 | } else { |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
110 | memcpy(elm->data, value, map->collection.elem_size); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
111 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
112 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
113 | // allocate new element |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
114 | struct cx_hash_map_element_s *e = cxMalloc( |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
115 | allocator, |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
116 | sizeof(struct cx_hash_map_element_s) + map->collection.elem_size |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
117 | ); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
118 | if (e == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
119 | return -1; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
120 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
121 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
122 | // write the value |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
123 | if (map->collection.store_pointer) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
124 | memcpy(e->data, &value, sizeof(void *)); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
125 | } else { |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
126 | memcpy(e->data, value, map->collection.elem_size); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
127 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
128 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
129 | // copy the key |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
130 | void *kd = cxMalloc(allocator, key.len); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
131 | if (kd == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
132 | return -1; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
133 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
134 | memcpy(kd, key.data, key.len); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
135 | e->key.data = kd; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
136 | e->key.len = key.len; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
137 | e->key.hash = hash; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
138 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
139 | // insert the element into the linked list |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
140 | if (prev == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
141 | hash_map->buckets[slot] = e; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
142 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
143 | prev->next = e; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
144 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
145 | e->next = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
146 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
147 | // increase the size |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
148 | map->collection.size++; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
149 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
150 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
151 | return 0; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
152 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
153 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
154 | static void cx_hash_map_unlink( |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
155 | struct cx_hash_map_s *hash_map, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
156 | size_t slot, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
157 | struct cx_hash_map_element_s *prev, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
158 | struct cx_hash_map_element_s *elm |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
159 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
160 | // unlink |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
161 | if (prev == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
162 | hash_map->buckets[slot] = elm->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
163 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
164 | prev->next = elm->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
165 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
166 | // free element |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
167 | cxFree(hash_map->base.collection.allocator, (void *) elm->key.data); |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
168 | cxFree(hash_map->base.collection.allocator, elm); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
169 | // decrease size |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
170 | hash_map->base.collection.size--; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
171 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
172 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
173 | /** |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
174 | * Helper function to avoid code duplication. |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
175 | * |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
176 | * @param map the map |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
177 | * @param key the key to look up |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
178 | * @param remove flag indicating whether the looked up entry shall be removed |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
179 | * @param destroy flag indicating whether the destructor shall be invoked |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
180 | * @return a pointer to the value corresponding to the key or \c NULL |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
181 | */ |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
182 | static void *cx_hash_map_get_remove( |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
183 | CxMap *map, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
184 | CxHashKey key, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
185 | bool remove, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
186 | bool destroy |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
187 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
188 | struct cx_hash_map_s *hash_map = (struct cx_hash_map_s *) map; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
189 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
190 | unsigned hash = key.hash; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
191 | if (hash == 0) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
192 | cx_hash_murmur(&key); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
193 | hash = key.hash; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
194 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
195 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
196 | size_t slot = hash % hash_map->bucket_count; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
197 | struct cx_hash_map_element_s *elm = hash_map->buckets[slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
198 | struct cx_hash_map_element_s *prev = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
199 | while (elm && elm->key.hash <= hash) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
200 | if (elm->key.hash == hash && elm->key.len == key.len) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
201 | if (memcmp(elm->key.data, key.data, key.len) == 0) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
202 | void *data = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
203 | if (destroy) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
204 | cx_invoke_destructor(map, elm->data); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
205 | } else { |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
206 | if (map->collection.store_pointer) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
207 | data = *(void **) elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
208 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
209 | data = elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
210 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
211 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
212 | if (remove) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
213 | cx_hash_map_unlink(hash_map, slot, prev, elm); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
214 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
215 | return data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
216 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
217 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
218 | prev = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
219 | elm = prev->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
220 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
221 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
222 | return NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
223 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
224 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
225 | static void *cx_hash_map_get( |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
226 | const CxMap *map, |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
227 | CxHashKey key |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
228 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
229 | // we can safely cast, because we know the map stays untouched |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
230 | return cx_hash_map_get_remove((CxMap *) map, key, false, false); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
231 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
232 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
233 | static void *cx_hash_map_remove( |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
234 | CxMap *map, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
235 | CxHashKey key, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
236 | bool destroy |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
237 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
238 | return cx_hash_map_get_remove(map, key, true, destroy); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
239 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
240 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
241 | static void *cx_hash_map_iter_current_entry(const void *it) { |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
242 | const struct cx_iterator_s *iter = it; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
243 | // struct has to have a compatible signature |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
244 | return (struct cx_map_entry_s *) &(iter->kv_data); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
245 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
246 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
247 | static void *cx_hash_map_iter_current_key(const void *it) { |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
248 | const struct cx_iterator_s *iter = it; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
249 | struct cx_hash_map_element_s *elm = iter->elem_handle; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
250 | return &elm->key; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
251 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
252 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
253 | static void *cx_hash_map_iter_current_value(const void *it) { |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
254 | const struct cx_iterator_s *iter = it; |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
255 | const struct cx_hash_map_s *map = iter->src_handle.c; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
256 | struct cx_hash_map_element_s *elm = iter->elem_handle; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
257 | if (map->base.collection.store_pointer) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
258 | return *(void **) elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
259 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
260 | return elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
261 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
262 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
263 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
264 | static bool cx_hash_map_iter_valid(const void *it) { |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
265 | const struct cx_iterator_s *iter = it; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
266 | return iter->elem_handle != NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
267 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
268 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
269 | static void cx_hash_map_iter_next(void *it) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
270 | struct cx_iterator_s *iter = it; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
271 | struct cx_hash_map_element_s *elm = iter->elem_handle; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
272 | struct cx_hash_map_s *map = iter->src_handle.m; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
273 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
274 | // remove current element, if asked |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
275 | if (iter->base.remove) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
276 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
277 | // clear the flag |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
278 | iter->base.remove = false; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
279 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
280 | // determine the next element |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
281 | struct cx_hash_map_element_s *next = elm->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
282 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
283 | // search the previous element |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
284 | struct cx_hash_map_element_s *prev = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
285 | if (map->buckets[iter->slot] != elm) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
286 | prev = map->buckets[iter->slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
287 | while (prev->next != elm) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
288 | prev = prev->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
289 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
290 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
291 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
292 | // destroy |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
293 | cx_invoke_destructor((struct cx_map_s *) map, elm->data); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
294 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
295 | // unlink |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
296 | cx_hash_map_unlink(map, iter->slot, prev, elm); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
297 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
298 | // advance |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
299 | elm = next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
300 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
301 | // just advance |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
302 | elm = elm->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
303 | iter->index++; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
304 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
305 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
306 | // search the next bucket, if required |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
307 | while (elm == NULL && ++iter->slot < map->bucket_count) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
308 | elm = map->buckets[iter->slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
309 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
310 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
311 | // fill the struct with the next element |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
312 | iter->elem_handle = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
313 | if (elm == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
314 | iter->kv_data.key = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
315 | iter->kv_data.value = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
316 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
317 | iter->kv_data.key = &elm->key; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
318 | if (map->base.collection.store_pointer) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
319 | iter->kv_data.value = *(void **) elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
320 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
321 | iter->kv_data.value = elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
322 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
323 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
324 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
325 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
326 | static CxIterator cx_hash_map_iterator( |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
327 | const CxMap *map, |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
328 | enum cx_map_iterator_type type |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
329 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
330 | CxIterator iter; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
331 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
332 | iter.src_handle.c = map; |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
333 | iter.elem_count = map->collection.size; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
334 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
335 | switch (type) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
336 | case CX_MAP_ITERATOR_PAIRS: |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
337 | iter.elem_size = sizeof(CxMapEntry); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
338 | iter.base.current = cx_hash_map_iter_current_entry; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
339 | break; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
340 | case CX_MAP_ITERATOR_KEYS: |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
341 | iter.elem_size = sizeof(CxHashKey); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
342 | iter.base.current = cx_hash_map_iter_current_key; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
343 | break; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
344 | case CX_MAP_ITERATOR_VALUES: |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
345 | iter.elem_size = map->collection.elem_size; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
346 | iter.base.current = cx_hash_map_iter_current_value; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
347 | break; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
348 | default: |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
349 | assert(false); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
350 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
351 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
352 | iter.base.valid = cx_hash_map_iter_valid; |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
353 | iter.base.next = cx_hash_map_iter_next; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
354 | iter.base.remove = false; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
355 | iter.base.mutating = false; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
356 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
357 | iter.slot = 0; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
358 | iter.index = 0; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
359 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
360 | if (map->collection.size > 0) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
361 | struct cx_hash_map_s *hash_map = (struct cx_hash_map_s *) map; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
362 | struct cx_hash_map_element_s *elm = hash_map->buckets[0]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
363 | while (elm == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
364 | elm = hash_map->buckets[++iter.slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
365 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
366 | iter.elem_handle = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
367 | iter.kv_data.key = &elm->key; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
368 | if (map->collection.store_pointer) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
369 | iter.kv_data.value = *(void **) elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
370 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
371 | iter.kv_data.value = elm->data; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
372 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
373 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
374 | iter.elem_handle = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
375 | iter.kv_data.key = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
376 | iter.kv_data.value = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
377 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
378 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
379 | return iter; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
380 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
381 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
382 | static cx_map_class cx_hash_map_class = { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
383 | cx_hash_map_destructor, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
384 | cx_hash_map_clear, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
385 | cx_hash_map_put, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
386 | cx_hash_map_get, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
387 | cx_hash_map_remove, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
388 | cx_hash_map_iterator, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
389 | }; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
390 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
391 | CxMap *cxHashMapCreate( |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
392 | const CxAllocator *allocator, |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
393 | size_t itemsize, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
394 | size_t buckets |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
395 | ) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
396 | if (buckets == 0) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
397 | // implementation defined default |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
398 | buckets = 16; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
399 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
400 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
401 | struct cx_hash_map_s *map = cxCalloc(allocator, 1, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
402 | sizeof(struct cx_hash_map_s)); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
403 | if (map == NULL) return NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
404 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
405 | // initialize hash map members |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
406 | map->bucket_count = buckets; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
407 | map->buckets = cxCalloc(allocator, buckets, |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
408 | sizeof(struct cx_hash_map_element_s *)); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
409 | if (map->buckets == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
410 | cxFree(allocator, map); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
411 | return NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
412 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
413 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
414 | // initialize base members |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
415 | map->base.cl = &cx_hash_map_class; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
416 | map->base.collection.allocator = allocator; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
417 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
418 | if (itemsize > 0) { |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
419 | map->base.collection.store_pointer = false; |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
420 | map->base.collection.elem_size = itemsize; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
421 | } else { |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
422 | map->base.collection.store_pointer = true; |
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
423 | map->base.collection.elem_size = sizeof(void *); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
424 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
425 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
426 | return (CxMap *) map; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
427 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
428 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
429 | int cxMapRehash(CxMap *map) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
430 | struct cx_hash_map_s *hash_map = (struct cx_hash_map_s *) map; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
431 | if (map->collection.size > ((hash_map->bucket_count * 3) >> 2)) { |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
432 | |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
433 | size_t new_bucket_count = (map->collection.size * 5) >> 1; |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
434 | struct cx_hash_map_element_s **new_buckets = cxCalloc( |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
435 | map->collection.allocator, |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
436 | new_bucket_count, sizeof(struct cx_hash_map_element_s *) |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
437 | ); |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
438 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
439 | if (new_buckets == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
440 | return 1; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
441 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
442 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
443 | // iterate through the elements and assign them to their new slots |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
444 | cx_for_n(slot, hash_map->bucket_count) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
445 | struct cx_hash_map_element_s *elm = hash_map->buckets[slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
446 | while (elm != NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
447 | struct cx_hash_map_element_s *next = elm->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
448 | size_t new_slot = elm->key.hash % new_bucket_count; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
449 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
450 | // find position where to insert |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
451 | struct cx_hash_map_element_s *bucket_next = new_buckets[new_slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
452 | struct cx_hash_map_element_s *bucket_prev = NULL; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
453 | while (bucket_next != NULL && |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
454 | bucket_next->key.hash < elm->key.hash) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
455 | bucket_prev = bucket_next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
456 | bucket_next = bucket_next->next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
457 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
458 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
459 | // insert |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
460 | if (bucket_prev == NULL) { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
461 | elm->next = new_buckets[new_slot]; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
462 | new_buckets[new_slot] = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
463 | } else { |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
464 | bucket_prev->next = elm; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
465 | elm->next = bucket_next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
466 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
467 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
468 | // advance |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
469 | elm = next; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
470 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
471 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
472 | |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
473 | // assign result to the map |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
474 | hash_map->bucket_count = new_bucket_count; |
49
2f71f4ee247a
update toolkit, ucx, libidav
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
0
diff
changeset
|
475 | cxFree(map->collection.allocator, hash_map->buckets); |
0
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
476 | hash_map->buckets = new_buckets; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
477 | } |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
478 | return 0; |
2483f517c562
add existing toolkit code
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff
changeset
|
479 | } |