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merge(3p/git): Merge git upstream at v2.26.2

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This commit is contained in:
Vincent Ambo 2020-05-22 17:46:45 +01:00
commit 5229c9b232
1006 changed files with 149006 additions and 60819 deletions
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60
third_party/git/hashmap.c vendored
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@ -51,7 +51,7 @@ unsigned int memihash(const void *buf, size_t len)
}
/*
* Incoporate another chunk of data into a memihash
* Incorporate another chunk of data into a memihash
* computation.
*/
unsigned int memihash_cont(unsigned int hash_seed, const void *buf, size_t len)
@ -140,8 +140,8 @@ static inline struct hashmap_entry **find_entry_ptr(const struct hashmap *map,
}
static int always_equal(const void *unused_cmp_data,
const void *unused1,
const void *unused2,
const struct hashmap_entry *unused1,
const struct hashmap_entry *unused2,
const void *unused_keydata)
{
return 0;
@ -171,41 +171,49 @@ void hashmap_init(struct hashmap *map, hashmap_cmp_fn equals_function,
map->do_count_items = 1;
}
void hashmap_free(struct hashmap *map, int free_entries)
void hashmap_free_(struct hashmap *map, ssize_t entry_offset)
{
if (!map || !map->table)
return;
if (free_entries) {
if (entry_offset >= 0) { /* called by hashmap_free_entries */
struct hashmap_iter iter;
struct hashmap_entry *e;
hashmap_iter_init(map, &iter);
while ((e = hashmap_iter_next(&iter)))
free(e);
/*
* like container_of, but using caller-calculated
* offset (caller being hashmap_free_entries)
*/
free((char *)e - entry_offset);
}
free(map->table);
memset(map, 0, sizeof(*map));
}
void *hashmap_get(const struct hashmap *map, const void *key, const void *keydata)
struct hashmap_entry *hashmap_get(const struct hashmap *map,
const struct hashmap_entry *key,
const void *keydata)
{
return *find_entry_ptr(map, key, keydata);
}
void *hashmap_get_next(const struct hashmap *map, const void *entry)
struct hashmap_entry *hashmap_get_next(const struct hashmap *map,
const struct hashmap_entry *entry)
{
struct hashmap_entry *e = ((struct hashmap_entry *) entry)->next;
struct hashmap_entry *e = entry->next;
for (; e; e = e->next)
if (entry_equals(map, entry, e, NULL))
return e;
return NULL;
}
void hashmap_add(struct hashmap *map, void *entry)
void hashmap_add(struct hashmap *map, struct hashmap_entry *entry)
{
unsigned int b = bucket(map, entry);
/* add entry */
((struct hashmap_entry *) entry)->next = map->table[b];
entry->next = map->table[b];
map->table[b] = entry;
/* fix size and rehash if appropriate */
@ -216,7 +224,9 @@ void hashmap_add(struct hashmap *map, void *entry)
}
}
void *hashmap_remove(struct hashmap *map, const void *key, const void *keydata)
struct hashmap_entry *hashmap_remove(struct hashmap *map,
const struct hashmap_entry *key,
const void *keydata)
{
struct hashmap_entry *old;
struct hashmap_entry **e = find_entry_ptr(map, key, keydata);
@ -238,7 +248,8 @@ void *hashmap_remove(struct hashmap *map, const void *key, const void *keydata)
return old;
}
void *hashmap_put(struct hashmap *map, void *entry)
struct hashmap_entry *hashmap_put(struct hashmap *map,
struct hashmap_entry *entry)
{
struct hashmap_entry *old = hashmap_remove(map, entry, NULL);
hashmap_add(map, entry);
@ -252,7 +263,7 @@ void hashmap_iter_init(struct hashmap *map, struct hashmap_iter *iter)
iter->next = NULL;
}
void *hashmap_iter_next(struct hashmap_iter *iter)
struct hashmap_entry *hashmap_iter_next(struct hashmap_iter *iter)
{
struct hashmap_entry *current = iter->next;
for (;;) {
@ -275,10 +286,15 @@ struct pool_entry {
};
static int pool_entry_cmp(const void *unused_cmp_data,
const struct pool_entry *e1,
const struct pool_entry *e2,
const unsigned char *keydata)
const struct hashmap_entry *eptr,
const struct hashmap_entry *entry_or_key,
const void *keydata)
{
const struct pool_entry *e1, *e2;
e1 = container_of(eptr, const struct pool_entry, ent);
e2 = container_of(entry_or_key, const struct pool_entry, ent);
return e1->data != keydata &&
(e1->len != e2->len || memcmp(e1->data, keydata, e1->len));
}
@ -290,18 +306,18 @@ const void *memintern(const void *data, size_t len)
/* initialize string pool hashmap */
if (!map.tablesize)
hashmap_init(&map, (hashmap_cmp_fn) pool_entry_cmp, NULL, 0);
hashmap_init(&map, pool_entry_cmp, NULL, 0);
/* lookup interned string in pool */
hashmap_entry_init(&key, memhash(data, len));
hashmap_entry_init(&key.ent, memhash(data, len));
key.len = len;
e = hashmap_get(&map, &key, data);
e = hashmap_get_entry(&map, &key, ent, data);
if (!e) {
/* not found: create it */
FLEX_ALLOC_MEM(e, data, data, len);
hashmap_entry_init(e, key.ent.hash);
hashmap_entry_init(&e->ent, key.ent.hash);
e->len = len;
hashmap_add(&map, e);
hashmap_add(&map, &e->ent);
}
return e->data;
}