hashmap, set: remove unused functions

The following hashmap_* and set_* functions/macros have never had any
users in systemd's history:

  *_iterate_backwards
  *_iterate_skip
  *_last
  *_FOREACH_BACKWARDS

Remove this dead code.

4 files changed, 0 insertions, 88 deletions

diff --git a/src/shared/hashmap.c b/src/shared/hashmap.c
index 715484ce7c..1eadeced5c 100644
--- a/src/shared/hashmap.c
+++ b/src/shared/hashmap.c
@@ -753,59 +753,6 @@ at_end:
         return NULL;
 }
 
-void *hashmap_iterate_backwards(Hashmap *h, Iterator *i, const void **key) {
-        struct hashmap_entry *e;
-
-        assert(i);
-
-        if (!h)
-                goto at_beginning;
-
-        if (*i == ITERATOR_FIRST)
-                goto at_beginning;
-
-        if (*i == ITERATOR_LAST && !h->iterate_list_tail)
-                goto at_beginning;
-
-        e = *i == ITERATOR_LAST ? h->iterate_list_tail : (struct hashmap_entry*) *i;
-
-        if (e->iterate_previous)
-                *i = (Iterator) e->iterate_previous;
-        else
-                *i = ITERATOR_FIRST;
-
-        if (key)
-                *key = e->key;
-
-        return e->value;
-
-at_beginning:
-        *i = ITERATOR_FIRST;
-
-        if (key)
-                *key = NULL;
-
-        return NULL;
-}
-
-void *hashmap_iterate_skip(Hashmap *h, const void *key, Iterator *i) {
-        unsigned hash;
-        struct hashmap_entry *e;
-
-        if (!h)
-                return NULL;
-
-        hash = bucket_hash(h, key);
-
-        e = hash_scan(h, hash, key);
-        if (!e)
-                return NULL;
-
-        *i = (Iterator) e;
-
-        return e->value;
-}
-
 void* hashmap_first(Hashmap *h) {
 
         if (!h)
@@ -828,17 +775,6 @@ void* hashmap_first_key(Hashmap *h) {
         return (void*) h->iterate_list_head->key;
 }
 
-void* hashmap_last(Hashmap *h) {
-
-        if (!h)
-                return NULL;
-
-        if (!h->iterate_list_tail)
-                return NULL;
-
-        return h->iterate_list_tail->value;
-}
-
 void* hashmap_steal_first(Hashmap *h) {
         void *data;
 
diff --git a/src/shared/hashmap.h b/src/shared/hashmap.h
index 7385ebc5fa..e25840f47f 100644
--- a/src/shared/hashmap.h
+++ b/src/shared/hashmap.h
@@ -109,8 +109,6 @@ bool hashmap_isempty(Hashmap *h) _pure_;
 unsigned hashmap_buckets(Hashmap *h) _pure_;
 
 void *hashmap_iterate(Hashmap *h, Iterator *i, const void **key);
-void *hashmap_iterate_backwards(Hashmap *h, Iterator *i, const void **key);
-void *hashmap_iterate_skip(Hashmap *h, const void *key, Iterator *i);
 
 void hashmap_clear(Hashmap *h);
 void hashmap_clear_free(Hashmap *h);
@@ -120,7 +118,6 @@ void *hashmap_steal_first(Hashmap *h);
 void *hashmap_steal_first_key(Hashmap *h);
 void *hashmap_first(Hashmap *h) _pure_;
 void *hashmap_first_key(Hashmap *h) _pure_;
-void *hashmap_last(Hashmap *h) _pure_;
 
 void *hashmap_next(Hashmap *h, const void *key);
 
@@ -132,9 +129,6 @@ char **hashmap_get_strv(Hashmap *h);
 #define HASHMAP_FOREACH_KEY(e, k, h, i) \
         for ((i) = ITERATOR_FIRST, (e) = hashmap_iterate((h), &(i), (const void**) &(k)); (e); (e) = hashmap_iterate((h), &(i), (const void**) &(k)))
 
-#define HASHMAP_FOREACH_BACKWARDS(e, h, i) \
-        for ((i) = ITERATOR_LAST, (e) = hashmap_iterate_backwards((h), &(i), NULL); (e); (e) = hashmap_iterate_backwards((h), &(i), NULL))
-
 DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, hashmap_free);
 DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, hashmap_free_free);
 DEFINE_TRIVIAL_CLEANUP_FUNC(Hashmap*, hashmap_free_free_free);
diff --git a/src/shared/set.c b/src/shared/set.c
index d4ffe056d5..ed16067bdc 100644
--- a/src/shared/set.c
+++ b/src/shared/set.c
@@ -125,14 +125,6 @@ void *set_iterate(Set *s, Iterator *i) {
         return hashmap_iterate(MAKE_HASHMAP(s), i, NULL);
 }
 
-void *set_iterate_backwards(Set *s, Iterator *i) {
-        return hashmap_iterate_backwards(MAKE_HASHMAP(s), i, NULL);
-}
-
-void *set_iterate_skip(Set *s, void *value, Iterator *i) {
-        return hashmap_iterate_skip(MAKE_HASHMAP(s), value, i);
-}
-
 void *set_steal_first(Set *s) {
         return hashmap_steal_first(MAKE_HASHMAP(s));
 }
@@ -141,10 +133,6 @@ void* set_first(Set *s) {
         return hashmap_first(MAKE_HASHMAP(s));
 }
 
-void* set_last(Set *s) {
-        return hashmap_last(MAKE_HASHMAP(s));
-}
-
 int set_merge(Set *s, Set *other) {
         return hashmap_merge(MAKE_HASHMAP(s), MAKE_HASHMAP(other));
 }
diff --git a/src/shared/set.h b/src/shared/set.h
index e650b7e3fe..840ee0a7e4 100644
--- a/src/shared/set.h
+++ b/src/shared/set.h
@@ -57,24 +57,18 @@ unsigned set_size(Set *s);
 bool set_isempty(Set *s);
 
 void *set_iterate(Set *s, Iterator *i);
-void *set_iterate_backwards(Set *s, Iterator *i);
-void *set_iterate_skip(Set *s, void *value, Iterator *i);
 
 void set_clear(Set *s);
 void set_clear_free(Set *s);
 
 void *set_steal_first(Set *s);
 void* set_first(Set *s);
-void* set_last(Set *s);
 
 char **set_get_strv(Set *s);
 
 #define SET_FOREACH(e, s, i) \
         for ((i) = ITERATOR_FIRST, (e) = set_iterate((s), &(i)); (e); (e) = set_iterate((s), &(i)))
 
-#define SET_FOREACH_BACKWARDS(e, s, i) \
-        for ((i) = ITERATOR_LAST, (e) = set_iterate_backwards((s), &(i)); (e); (e) = set_iterate_backwards((s), &(i)))
-
 DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free);
 DEFINE_TRIVIAL_CLEANUP_FUNC(Set*, set_free_free);
 #define _cleanup_set_free_ _cleanup_(set_freep)