Merge branch 'nd/ita-wt-renames-in-status' into maint
[git] / oidmap.c
1 #include "cache.h"
2 #include "oidmap.h"
3
4 static int cmpfn(const void *hashmap_cmp_fn_data,
5                  const void *entry, const void *entry_or_key,
6                  const void *keydata)
7 {
8         const struct oidmap_entry *entry_ = entry;
9         if (keydata)
10                 return oidcmp(&entry_->oid, (const struct object_id *) keydata);
11         return oidcmp(&entry_->oid,
12                       &((const struct oidmap_entry *) entry_or_key)->oid);
13 }
14
15 static int hash(const struct object_id *oid)
16 {
17         int hash;
18         memcpy(&hash, oid->hash, sizeof(hash));
19         return hash;
20 }
21
22 void oidmap_init(struct oidmap *map, size_t initial_size)
23 {
24         hashmap_init(&map->map, cmpfn, NULL, initial_size);
25 }
26
27 void oidmap_free(struct oidmap *map, int free_entries)
28 {
29         if (!map)
30                 return;
31         hashmap_free(&map->map, free_entries);
32 }
33
34 void *oidmap_get(const struct oidmap *map, const struct object_id *key)
35 {
36         return hashmap_get_from_hash(&map->map, hash(key), key);
37 }
38
39 void *oidmap_remove(struct oidmap *map, const struct object_id *key)
40 {
41         struct hashmap_entry entry;
42         hashmap_entry_init(&entry, hash(key));
43         return hashmap_remove(&map->map, &entry, key);
44 }
45
46 void *oidmap_put(struct oidmap *map, void *entry)
47 {
48         struct oidmap_entry *to_put = entry;
49         hashmap_entry_init(&to_put->internal_entry, hash(&to_put->oid));
50         return hashmap_put(&map->map, to_put);
51 }