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oidmap: ensure map is initialized

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Ensure that an oidmap is initialized before attempting to add, remove,
or retrieve an entry by simply performing the initialization step
before accessing the underlying hashmap.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Williams 2017-12-22 15:27:29 -08:00 committed by Junio C Hamano
parent 3013dff866
commit e2a5a028c7
1 changed files with 11 additions and 0 deletions
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11
oidmap.c
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@ -33,12 +33,19 @@ void oidmap_free(struct oidmap *map, int free_entries)
void *oidmap_get(const struct oidmap *map, const struct object_id *key)
{
if (!map->map.cmpfn)
return NULL;
return hashmap_get_from_hash(&map->map, hash(key), key);
}
void *oidmap_remove(struct oidmap *map, const struct object_id *key)
{
struct hashmap_entry entry;
if (!map->map.cmpfn)
oidmap_init(map, 0);
hashmap_entry_init(&entry, hash(key));
return hashmap_remove(&map->map, &entry, key);
}
@ -46,6 +53,10 @@ void *oidmap_remove(struct oidmap *map, const struct object_id *key)
void *oidmap_put(struct oidmap *map, void *entry)
{
struct oidmap_entry *to_put = entry;
if (!map->map.cmpfn)
oidmap_init(map, 0);
hashmap_entry_init(&to_put->internal_entry, hash(&to_put->oid));
return hashmap_put(&map->map, to_put);
}