Merge branch 'es/perf-export-fix'
[git] / oidmap.c
1 #include "cache.h"
2 #include "oidmap.h"
3
4 static int oidmap_neq(const void *hashmap_cmp_fn_data,
5                       const struct hashmap_entry *e1,
6                       const struct hashmap_entry *e2,
7                       const void *keydata)
8 {
9         const struct oidmap_entry *a, *b;
10
11         a = container_of(e1, const struct oidmap_entry, internal_entry);
12         b = container_of(e2, const struct oidmap_entry, internal_entry);
13
14         if (keydata)
15                 return !oideq(&a->oid, (const struct object_id *) keydata);
16         return !oideq(&a->oid, &b->oid);
17 }
18
19 void oidmap_init(struct oidmap *map, size_t initial_size)
20 {
21         hashmap_init(&map->map, oidmap_neq, NULL, initial_size);
22 }
23
24 void oidmap_free(struct oidmap *map, int free_entries)
25 {
26         if (!map)
27                 return;
28
29         /* TODO: make oidmap itself not depend on struct layouts */
30         hashmap_clear_(&map->map, free_entries ? 0 : -1);
31 }
32
33 void *oidmap_get(const struct oidmap *map, const struct object_id *key)
34 {
35         if (!map->map.cmpfn)
36                 return NULL;
37
38         return hashmap_get_from_hash(&map->map, oidhash(key), key);
39 }
40
41 void *oidmap_remove(struct oidmap *map, const struct object_id *key)
42 {
43         struct hashmap_entry entry;
44
45         if (!map->map.cmpfn)
46                 oidmap_init(map, 0);
47
48         hashmap_entry_init(&entry, oidhash(key));
49         return hashmap_remove(&map->map, &entry, key);
50 }
51
52 void *oidmap_put(struct oidmap *map, void *entry)
53 {
54         struct oidmap_entry *to_put = entry;
55
56         if (!map->map.cmpfn)
57                 oidmap_init(map, 0);
58
59         hashmap_entry_init(&to_put->internal_entry, oidhash(&to_put->oid));
60         return hashmap_put(&map->map, &to_put->internal_entry);
61 }