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hashmap: introduce hashmap_first_key_and_value() and friends

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This commit is contained in:
Yu Watanabe 2018-10-13 16:30:49 +09:00
parent fd8879498d
commit 7ef670c34a
3 changed files with 50 additions and 67 deletions
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52
src/basic/hashmap.c
View File

@ -1543,47 +1543,9 @@ static unsigned find_first_entry(HashmapBase *h) {
return hashmap_iterate_entry(h, &i);
}
void *internal_hashmap_first(HashmapBase *h) {
unsigned idx;
idx = find_first_entry(h);
if (idx == IDX_NIL)
return NULL;
return entry_value(h, bucket_at(h, idx));
}
void *internal_hashmap_first_key(HashmapBase *h) {
void *internal_hashmap_first_key_and_value(HashmapBase *h, bool remove, void **ret_key) {
struct hashmap_base_entry *e;
unsigned idx;
idx = find_first_entry(h);
if (idx == IDX_NIL)
return NULL;
e = bucket_at(h, idx);
return (void*) e->key;
}
void *internal_hashmap_steal_first(HashmapBase *h) {
struct hashmap_base_entry *e;
void *data;
unsigned idx;
idx = find_first_entry(h);
if (idx == IDX_NIL)
return NULL;
e = bucket_at(h, idx);
data = entry_value(h, e);
remove_entry(h, idx);
return data;
}
void *internal_hashmap_steal_first_key(HashmapBase *h) {
struct hashmap_base_entry *e;
void *key;
void *key, *data;
unsigned idx;
idx = find_first_entry(h);
@ -1592,9 +1554,15 @@ void *internal_hashmap_steal_first_key(HashmapBase *h) {
e = bucket_at(h, idx);
key = (void*) e->key;
remove_entry(h, idx);
data = entry_value(h, e);
return key;
if (remove)
remove_entry(h, idx);
if (ret_key)
*ret_key = key;
return data;
}
unsigned internal_hashmap_size(HashmapBase *h) {

61
src/basic/hashmap.h
View File

@ -290,36 +290,51 @@ static inline void ordered_hashmap_clear_free_free(OrderedHashmap *h) {
* the first entry is O(1).
*/
void *internal_hashmap_steal_first(HashmapBase *h);
void *internal_hashmap_first_key_and_value(HashmapBase *h, bool remove, void **ret_key);
static inline void *hashmap_steal_first_key_and_value(Hashmap *h, void **ret) {
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), true, ret);
}
static inline void *ordered_hashmap_steal_first_key_and_value(OrderedHashmap *h, void **ret) {
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), true, ret);
}
static inline void *hashmap_first_key_and_value(Hashmap *h, void **ret) {
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), false, ret);
}
static inline void *ordered_hashmap_first_key_and_value(OrderedHashmap *h, void **ret) {
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), false, ret);
}
static inline void *hashmap_steal_first(Hashmap *h) {
return internal_hashmap_steal_first(HASHMAP_BASE(h));
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), true, NULL);
}
static inline void *ordered_hashmap_steal_first(OrderedHashmap *h) {
return internal_hashmap_steal_first(HASHMAP_BASE(h));
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), true, NULL);
}
void *internal_hashmap_steal_first_key(HashmapBase *h);
static inline void *hashmap_steal_first_key(Hashmap *h) {
return internal_hashmap_steal_first_key(HASHMAP_BASE(h));
}
static inline void *ordered_hashmap_steal_first_key(OrderedHashmap *h) {
return internal_hashmap_steal_first_key(HASHMAP_BASE(h));
}
void *internal_hashmap_first_key(HashmapBase *h) _pure_;
static inline void *hashmap_first_key(Hashmap *h) {
return internal_hashmap_first_key(HASHMAP_BASE(h));
}
static inline void *ordered_hashmap_first_key(OrderedHashmap *h) {
return internal_hashmap_first_key(HASHMAP_BASE(h));
}
void *internal_hashmap_first(HashmapBase *h) _pure_;
static inline void *hashmap_first(Hashmap *h) {
return internal_hashmap_first(HASHMAP_BASE(h));
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), false, NULL);
}
static inline void *ordered_hashmap_first(OrderedHashmap *h) {
return internal_hashmap_first(HASHMAP_BASE(h));
return internal_hashmap_first_key_and_value(HASHMAP_BASE(h), false, NULL);
}
static inline void *internal_hashmap_first_key(HashmapBase *h, bool remove) {
void *key = NULL;
(void) internal_hashmap_first_key_and_value(HASHMAP_BASE(h), remove, &key);
return key;
}
static inline void *hashmap_steal_first_key(Hashmap *h) {
return internal_hashmap_first_key(HASHMAP_BASE(h), true);
}
static inline void *ordered_hashmap_steal_first_key(OrderedHashmap *h) {
return internal_hashmap_first_key(HASHMAP_BASE(h), true);
}
static inline void *hashmap_first_key(Hashmap *h) {
return internal_hashmap_first_key(HASHMAP_BASE(h), false);
}
static inline void *ordered_hashmap_first_key(OrderedHashmap *h) {
return internal_hashmap_first_key(HASHMAP_BASE(h), false);
}
#define hashmap_clear_with_destructor(_s, _f) \

4
src/basic/set.h
View File

@ -86,7 +86,7 @@ static inline void set_clear_free(Set *s) {
/* no set_clear_free_free */
static inline void *set_steal_first(Set *s) {
return internal_hashmap_steal_first(HASHMAP_BASE(s));
return internal_hashmap_first_key_and_value(HASHMAP_BASE(s), true, NULL);
}
#define set_clear_with_destructor(_s, _f) \
@ -105,7 +105,7 @@ static inline void *set_steal_first(Set *s) {
/* no set_first_key */
static inline void *set_first(Set *s) {
return internal_hashmap_first(HASHMAP_BASE(s));
return internal_hashmap_first_key_and_value(HASHMAP_BASE(s), false, NULL);
}
/* no set_next */