oidmap.c

   1 #include "cache.h"
   2 #include "oidmap.h"
   3
   4 static int oidmap_neq(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 !oideq(&entry_->oid, (const struct object_id *) keydata);
  11         return !oideq(&entry_->oid,
  12                       &((const struct oidmap_entry *) entry_or_key)->oid);
  13 }
  14
  15 void oidmap_init(struct oidmap *map, size_t initial_size)
  16 {
  17         hashmap_init(&map->map, oidmap_neq, NULL, initial_size);
  18 }
  19
  20 void oidmap_free(struct oidmap *map, int free_entries)
  21 {
  22         if (!map)
  23                 return;
  24         hashmap_free(&map->map, free_entries);
  25 }
  26
  27 void *oidmap_get(const struct oidmap *map, const struct object_id *key)
  28 {
  29         if (!map->map.cmpfn)
  30                 return NULL;
  31
  32         return hashmap_get_from_hash(&map->map, sha1hash(key->hash), key);
  33 }
  34
  35 void *oidmap_remove(struct oidmap *map, const struct object_id *key)
  36 {
  37         struct hashmap_entry entry;
  38
  39         if (!map->map.cmpfn)
  40                 oidmap_init(map, 0);
  41
  42         hashmap_entry_init(&entry, sha1hash(key->hash));
  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
  50         if (!map->map.cmpfn)
  51                 oidmap_init(map, 0);
  52
  53         hashmap_entry_init(&to_put->internal_entry, sha1hash(to_put->oid.hash));
  54         return hashmap_put(&map->map, to_put);
  55 }