* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap_iterate (const struct GNUNET_CONTAINER_MultiHashMap *map,
+GNUNET_CONTAINER_multihashmap_iterate (struct GNUNET_CONTAINER_MultiHashMap *map,
GNUNET_CONTAINER_HashMapIterator it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap_get_multiple (const struct GNUNET_CONTAINER_MultiHashMap *map,
+GNUNET_CONTAINER_multihashmap_get_multiple (struct GNUNET_CONTAINER_MultiHashMap *map,
const struct GNUNET_HashCode *key,
GNUNET_CONTAINER_HashMapIterator it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multipeermap_iterate (const struct GNUNET_CONTAINER_MultiPeerMap *map,
+GNUNET_CONTAINER_multipeermap_iterate (struct GNUNET_CONTAINER_MultiPeerMap *map,
GNUNET_CONTAINER_PeerMapIterator it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multipeermap_get_multiple (const struct GNUNET_CONTAINER_MultiPeerMap *map,
+GNUNET_CONTAINER_multipeermap_get_multiple (struct GNUNET_CONTAINER_MultiPeerMap *map,
const struct GNUNET_PeerIdentity *key,
GNUNET_CONTAINER_PeerMapIterator it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multishortmap_iterate (const struct GNUNET_CONTAINER_MultiShortmap *map,
+GNUNET_CONTAINER_multishortmap_iterate (struct GNUNET_CONTAINER_MultiShortmap *map,
GNUNET_CONTAINER_ShortmapIterator it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multishortmap_get_multiple (const struct GNUNET_CONTAINER_MultiShortmap *map,
+GNUNET_CONTAINER_multishortmap_get_multiple (struct GNUNET_CONTAINER_MultiShortmap *map,
const struct GNUNET_ShortHashCode *key,
GNUNET_CONTAINER_ShortmapIterator it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap32_iterate (const struct
- GNUNET_CONTAINER_MultiHashMap32 *map,
+GNUNET_CONTAINER_multihashmap32_iterate (struct GNUNET_CONTAINER_MultiHashMap32 *map,
GNUNET_CONTAINER_HashMapIterator32 it,
void *it_cls);
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap32_get_multiple (const struct GNUNET_CONTAINER_MultiHashMap32 *map,
+GNUNET_CONTAINER_multihashmap32_get_multiple (struct GNUNET_CONTAINER_MultiHashMap32 *map,
uint32_t key,
GNUNET_CONTAINER_HashMapIterator32 it,
void *it_cls);
#define LOG(kind,...) GNUNET_log_from (kind, "util-container-multihashmap", __VA_ARGS__)
+/**
+ * Maximum recursion depth for callbacks of
+ * #GNUNET_CONTAINER_multihashmap_get_multiple() themselve s
+ * again calling #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Should be totally excessive, but if violated we die.
+ */
+#define NEXT_CACHE_SIZE 16
+
+
/**
* An entry in the hash map with the full key.
*/
* to the map, so that iterators can check if they are still valid.
*/
unsigned int modification_counter;
+
+ /**
+ * Map entries indicating iteration positions currently
+ * in use by #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Only used up to @e next_cache_off.
+ */
+ union MapEntry next_cache[NEXT_CACHE_SIZE];
+
+ /**
+ * Offset of @e next_cache entries in use, must be smaller
+ * than #NEXT_CACHE_SIZE.
+ */
+ unsigned int next_cache_off;
};
struct GNUNET_CONTAINER_MultiHashMapIterator
{
/**
- * Position in the bucket 'idx'
+ * Position in the bucket @e idx
*/
union MapEntry me;
/**
- * Destroy a hash map. Will not free any values
- * stored in the hash map!
+ * Destroy a hash map. Will not free any values stored in the hash
+ * map!
*
* @param map the map
*/
void
-GNUNET_CONTAINER_multihashmap_destroy (struct GNUNET_CONTAINER_MultiHashMap
- *map)
+GNUNET_CONTAINER_multihashmap_destroy (struct GNUNET_CONTAINER_MultiHashMap *map)
{
+ GNUNET_assert (0 == map->next_cache_off);
for (unsigned int i = 0; i < map->map_length; i++)
{
union MapEntry me;
struct SmallMapEntry *sme;
for (sme = me.sme; NULL != sme; sme = sme->next)
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_HashCode)))
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_HashCode)))
return sme->value;
}
else
struct BigMapEntry *bme;
for (bme = me.bme; NULL != bme; bme = bme->next)
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_HashCode)))
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_HashCode)))
return bme->value;
}
return NULL;
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap_iterate (const struct
- GNUNET_CONTAINER_MultiHashMap *map,
+GNUNET_CONTAINER_multihashmap_iterate (struct GNUNET_CONTAINER_MultiHashMap *map,
GNUNET_CONTAINER_HashMapIterator it,
void *it_cls)
{
int count;
- unsigned int i;
union MapEntry me;
+ union MapEntry *ce;
struct GNUNET_HashCode kc;
- count = 0;
GNUNET_assert (NULL != map);
- for (i = 0; i < map->map_length; i++)
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
+ count = 0;
+ for (unsigned i = 0; i < map->map_length; i++)
{
me = map->map[i];
if (map->use_small_entries)
{
struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
- nxt = me.sme;
- while (NULL != (sme = nxt))
+ ce->sme = me.sme;
+ while (NULL != (sme = ce->sme))
{
- nxt = sme->next;
+ ce->sme = sme->next;
if (NULL != it)
{
- if (GNUNET_OK != it (it_cls, sme->key, sme->value))
+ if (GNUNET_OK != it (it_cls,
+ sme->key,
+ sme->value))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
}
count++;
}
else
{
struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ ce->bme = me.bme;
+ while (NULL != (bme = ce->bme))
{
- nxt = bme->next;
+ ce->bme = bme->next;
if (NULL != it)
{
kc = bme->key;
- if (GNUNET_OK != it (it_cls, &kc, bme->value))
+ if (GNUNET_OK != it (it_cls,
+ &kc,
+ bme->value))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
}
count++;
}
}
}
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return count;
}
+/**
+ * We are about to free() the @a bme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param bme the entry that is about to be free'd
+ */
+static void
+update_next_cache_bme (struct GNUNET_CONTAINER_MultiHashMap *map,
+ const struct BigMapEntry *bme)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i].bme == bme)
+ map->next_cache[i].bme = bme->next;
+}
+
+
+/**
+ * We are about to free() the @a sme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param sme the entry that is about to be free'd
+ */
+static void
+update_next_cache_sme (struct GNUNET_CONTAINER_MultiHashMap *map,
+ const struct SmallMapEntry *sme)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i].sme == sme)
+ map->next_cache[i].sme = sme->next;
+}
+
+
/**
* Remove the given key-value pair from the map. Note that if the
* key-value pair is in the map multiple times, only one of the pairs
me = map->map[i];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
struct SmallMapEntry *p;
p = NULL;
- for (sme = me.sme; NULL != sme; sme = sme->next)
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
{
- if ((0 == memcmp (key, sme->key, sizeof (struct GNUNET_HashCode))) &&
- (value == sme->value))
+ if ( (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_HashCode))) &&
+ (value == sme->value) )
{
if (NULL == p)
map->map[i].sme = sme->next;
else
p->next = sme->next;
+ update_next_cache_sme (map,
+ sme);
GNUNET_free (sme);
map->size--;
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
struct BigMapEntry *p;
p = NULL;
- for (bme = me.bme; NULL != bme; bme = bme->next)
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
{
- if ((0 == memcmp (key, &bme->key, sizeof (struct GNUNET_HashCode))) &&
- (value == bme->value))
+ if ( (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_HashCode))) &&
+ (value == bme->value) )
{
if (NULL == p)
map->map[i].bme = bme->next;
else
p->next = bme->next;
+ update_next_cache_bme (map,
+ bme);
GNUNET_free (bme);
map->size--;
return GNUNET_YES;
sme = me.sme;
while (NULL != sme)
{
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_HashCode)))
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_HashCode)))
{
if (NULL == p)
map->map[i].sme = sme->next;
else
p->next = sme->next;
+ update_next_cache_sme (map,
+ sme);
GNUNET_free (sme);
map->size--;
if (NULL == p)
bme = me.bme;
while (NULL != bme)
{
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_HashCode)))
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_HashCode)))
{
if (NULL == p)
map->map[i].bme = bme->next;
else
p->next = bme->next;
+ update_next_cache_bme (map,
+ bme);
GNUNET_free (bme);
map->size--;
if (NULL == p)
* #GNUNET_NO if not
*/
int
-GNUNET_CONTAINER_multihashmap_contains_value (const struct
- GNUNET_CONTAINER_MultiHashMap
- *map, const struct GNUNET_HashCode *key,
+GNUNET_CONTAINER_multihashmap_contains_value (const struct GNUNET_CONTAINER_MultiHashMap *map,
+ const struct GNUNET_HashCode *key,
const void *value)
{
union MapEntry me;
struct SmallMapEntry *sme;
for (sme = me.sme; NULL != sme; sme = sme->next)
- if ( (0 == memcmp (key, sme->key, sizeof (struct GNUNET_HashCode))) &&
+ if ( (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_HashCode))) &&
(sme->value == value) )
return GNUNET_YES;
}
struct BigMapEntry *bme;
for (bme = me.bme; NULL != bme; bme = bme->next)
- if ( (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_HashCode))) &&
+ if ( (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_HashCode))) &&
(bme->value == value) )
return GNUNET_YES;
}
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap_get_multiple (const struct
- GNUNET_CONTAINER_MultiHashMap *map,
+GNUNET_CONTAINER_multihashmap_get_multiple (struct GNUNET_CONTAINER_MultiHashMap *map,
const struct GNUNET_HashCode *key,
GNUNET_CONTAINER_HashMapIterator it,
void *it_cls)
{
int count;
- union MapEntry me;
+ union MapEntry *me;
+ union MapEntry *ce;
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
count = 0;
- me = map->map[idx_of (map, key)];
+ me = &map->map[idx_of (map, key)];
if (map->use_small_entries)
{
struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
- nxt = me.sme;
- while (NULL != (sme = nxt))
+ ce->sme = me->sme;
+ while (NULL != (sme = ce->sme))
{
- nxt = sme->next;
- if (0 != memcmp (key, sme->key, sizeof (struct GNUNET_HashCode)))
+ ce->sme = sme->next;
+ if (0 != memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_HashCode)))
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, sme->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ sme->value)))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
count++;
}
}
else
{
struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ ce->bme = me->bme;
+ while (NULL != (bme = ce->bme))
{
- nxt = bme->next;
- if (0 != memcmp (key, &bme->key, sizeof (struct GNUNET_HashCode)))
+ ce->bme = bme->next;
+ if (0 != memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_HashCode)))
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, bme->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ bme->value)))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
count++;
}
}
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return count;
}
#define LOG(kind,...) GNUNET_log_from (kind, "util-container-multihashmap32", __VA_ARGS__)
+
+/**
+ * Maximum recursion depth for callbacks of
+ * #GNUNET_CONTAINER_multihashmap_get_multiple() themselves
+ * again calling #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Should be totally excessive, but if violated we die.
+ */
+#define NEXT_CACHE_SIZE 16
+
/**
* An entry in the hash map.
*/
unsigned int size;
/**
- * Length of the "map" array.
+ * Length of the @e map array.
*/
unsigned int map_length;
* to the map, so that iterators can check if they are still valid.
*/
unsigned int modification_counter;
+
+ /**
+ * Map entries indicating iteration positions currently
+ * in use by #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Only used up to @e next_cache_off.
+ */
+ struct MapEntry *next_cache[NEXT_CACHE_SIZE];
+
+ /**
+ * Offset of @e next_cache entries in use, must be smaller
+ * than #NEXT_CACHE_SIZE.
+ */
+ unsigned int next_cache_off;
};
struct GNUNET_CONTAINER_MultiHashMap32Iterator
{
/**
- * Position in the bucket 'idx'
+ * Position in the bucket @e idx
*/
struct MapEntry *me;
GNUNET_assert (len > 0);
ret = GNUNET_new (struct GNUNET_CONTAINER_MultiHashMap32);
- ret->map = GNUNET_malloc (len * sizeof (struct MapEntry *));
+ ret->map = GNUNET_new_array (len,
+ struct MapEntry *);
ret->map_length = len;
return ret;
}
* @param map the map
*/
void
-GNUNET_CONTAINER_multihashmap32_destroy (struct GNUNET_CONTAINER_MultiHashMap32
- *map)
+GNUNET_CONTAINER_multihashmap32_destroy (struct GNUNET_CONTAINER_MultiHashMap32 *map)
{
- unsigned int i;
struct MapEntry *e;
- for (i = 0; i < map->map_length; i++)
+ for (unsigned int i = 0; i < map->map_length; i++)
{
while (NULL != (e = map->map[i]))
{
idx_of (const struct GNUNET_CONTAINER_MultiHashMap32 *m,
const uint32_t key)
{
- GNUNET_assert (m != NULL);
+ GNUNET_assert (NULL != m);
return ((unsigned int) key) % m->map_length;
}
* @return the number of key value pairs
*/
unsigned int
-GNUNET_CONTAINER_multihashmap32_size (const struct
- GNUNET_CONTAINER_MultiHashMap32 *map)
+GNUNET_CONTAINER_multihashmap32_size (const struct GNUNET_CONTAINER_MultiHashMap32 *map)
{
return map->size;
}
* key-value pairs with value NULL
*/
void *
-GNUNET_CONTAINER_multihashmap32_get (const struct
- GNUNET_CONTAINER_MultiHashMap32 *map,
+GNUNET_CONTAINER_multihashmap32_get (const struct GNUNET_CONTAINER_MultiHashMap32 *map,
uint32_t key)
{
struct MapEntry *e;
e = map->map[idx_of (map, key)];
- while (e != NULL)
+ while (NULL != e)
{
if (key == e->key)
return e->value;
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap32_iterate (const struct
- GNUNET_CONTAINER_MultiHashMap32 *map,
- GNUNET_CONTAINER_HashMapIterator32 it,
+GNUNET_CONTAINER_multihashmap32_iterate (struct GNUNET_CONTAINER_MultiHashMap32 *map,
+ GNUNET_CONTAINER_HashMapIterator32 it,
void *it_cls)
{
int count;
- unsigned int i;
- struct MapEntry *e;
- struct MapEntry *n;
+ struct MapEntry **ce;
count = 0;
GNUNET_assert (NULL != map);
- for (i = 0; i < map->map_length; i++)
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
+ for (unsigned int i = 0; i < map->map_length; i++)
{
- n = map->map[i];
- while (NULL != (e = n))
+ struct MapEntry *e;
+
+ *ce = map->map[i];
+ while (NULL != (e = *ce))
{
- n = e->next;
+ *ce = e->next;
if (NULL != it)
{
- if (GNUNET_OK != it (it_cls, e->key, e->value))
+ if (GNUNET_OK != it (it_cls,
+ e->key,
+ e->value))
return GNUNET_SYSERR;
}
count++;
}
+/**
+ * We are about to free() the @a bme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param bme the entry that is about to be free'd
+ */
+static void
+update_next_cache (struct GNUNET_CONTAINER_MultiHashMap32 *map,
+ const struct MapEntry *me)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i] == me)
+ map->next_cache[i] = me->next;
+}
+
+
/**
* Remove the given key-value pair from the map. Note that if the
* key-value pair is in the map multiple times, only one of the pairs
* @param map the map
* @param key key of the key-value pair
* @param value value of the key-value pair
- * @return GNUNET_YES on success, GNUNET_NO if the key-value pair
+ * @return #GNUNET_YES on success, #GNUNET_NO if the key-value pair
* is not in the map
*/
int
-GNUNET_CONTAINER_multihashmap32_remove (struct GNUNET_CONTAINER_MultiHashMap32
- *map,
- uint32_t key, const void *value)
+GNUNET_CONTAINER_multihashmap32_remove (struct GNUNET_CONTAINER_MultiHashMap32 *map,
+ uint32_t key,
+ const void *value)
{
struct MapEntry *e;
struct MapEntry *p;
map->map[i] = e->next;
else
p->next = e->next;
+ update_next_cache (map,
+ e);
GNUNET_free (e);
map->size--;
return GNUNET_YES;
* @return number of values removed
*/
int
-GNUNET_CONTAINER_multihashmap32_remove_all (struct
- GNUNET_CONTAINER_MultiHashMap32
- *map,
+GNUNET_CONTAINER_multihashmap32_remove_all (struct GNUNET_CONTAINER_MultiHashMap32 *map,
uint32_t key)
{
struct MapEntry *e;
map->map[i] = e->next;
else
p->next = e->next;
+ update_next_cache (map,
+ e);
GNUNET_free (e);
map->size--;
if (p == NULL)
*
* @param map the map
* @param key the key to test if a value exists for it
- * @return GNUNET_YES if such a value exists,
- * GNUNET_NO if not
+ * @return #GNUNET_YES if such a value exists,
+ * #GNUNET_NO if not
*/
int
-GNUNET_CONTAINER_multihashmap32_contains (const struct
- GNUNET_CONTAINER_MultiHashMap32 *map,
+GNUNET_CONTAINER_multihashmap32_contains (const struct GNUNET_CONTAINER_MultiHashMap32 *map,
uint32_t key)
{
struct MapEntry *e;
* @param map the map
* @param key the key to test if a value exists for it
* @param value value to test for
- * @return GNUNET_YES if such a value exists,
- * GNUNET_NO if not
+ * @return #GNUNET_YES if such a value exists,
+ * #GNUNET_NO if not
*/
int
-GNUNET_CONTAINER_multihashmap32_contains_value (const struct
- GNUNET_CONTAINER_MultiHashMap32
- *map,
+GNUNET_CONTAINER_multihashmap32_contains_value (const struct GNUNET_CONTAINER_MultiHashMap32 *map,
uint32_t key,
const void *value)
{
unsigned int old_len;
unsigned int new_len;
unsigned int idx;
- unsigned int i;
map->modification_counter++;
old_map = map->map;
old_len = map->map_length;
new_len = old_len * 2;
- new_map = GNUNET_malloc (sizeof (struct MapEntry *) * new_len);
+ new_map = GNUNET_new_array (new_len,
+ struct MapEntry *);
map->map_length = new_len;
map->map = new_map;
- for (i = 0; i < old_len; i++)
+ for (unsigned int i = 0; i < old_len; i++)
{
while (NULL != (e = old_map[i]))
{
* @param key key to use
* @param value value to use
* @param opt options for put
- * @return GNUNET_OK on success,
- * GNUNET_NO if a value was replaced (with REPLACE)
- * GNUNET_SYSERR if UNIQUE_ONLY was the option and the
+ * @return #GNUNET_OK on success,
+ * #GNUNET_NO if a value was replaced (with REPLACE)
+ * #GNUNET_SYSERR if UNIQUE_ONLY was the option and the
* value already exists
*/
int
* @param map the map
* @param key key that the entries must correspond to
* @param it function to call on each entry
- * @param it_cls extra argument to it
+ * @param it_cls extra argument to @a it
* @return the number of key value pairs processed,
* GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multihashmap32_get_multiple (const struct
- GNUNET_CONTAINER_MultiHashMap32
- *map, uint32_t key,
- GNUNET_CONTAINER_HashMapIterator32
- it, void *it_cls)
+GNUNET_CONTAINER_multihashmap32_get_multiple (struct GNUNET_CONTAINER_MultiHashMap32 *map,
+ uint32_t key,
+ GNUNET_CONTAINER_HashMapIterator32 it,
+ void *it_cls)
{
int count;
struct MapEntry *e;
- struct MapEntry *n;
+ struct MapEntry **ce;
count = 0;
- n = map->map[idx_of (map, key)];
- while (NULL != (e = n))
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
+
+ *ce = map->map[idx_of (map, key)];
+ while (NULL != (e = *ce))
{
- n = e->next;
+ *ce = e->next;
if (key != e->key)
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, e->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ e->value)) )
return GNUNET_SYSERR;
count++;
}
* result in skipped or repeated elements.
*
* @param map the map to create an iterator for
- * @return an iterator over the given multihashmap 'map'
+ * @return an iterator over the given multihashmap @a map
*/
struct GNUNET_CONTAINER_MultiHashMap32Iterator *
GNUNET_CONTAINER_multihashmap32_iterator_create (const struct GNUNET_CONTAINER_MultiHashMap32 *map)
#define LOG(kind,...) GNUNET_log_from (kind, "util-container-multipeermap", __VA_ARGS__)
+/**
+ * Maximum recursion depth for callbacks of
+ * #GNUNET_CONTAINER_multihashmap_get_multiple() themselve s
+ * again calling #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Should be totally excessive, but if violated we die.
+ */
+#define NEXT_CACHE_SIZE 16
+
/**
* An entry in the hash map with the full key.
*/
unsigned int map_length;
/**
- * GNUNET_NO if the map entries are of type 'struct BigMapEntry',
- * GNUNET_YES if the map entries are of type 'struct SmallMapEntry'.
+ * #GNUNET_NO if the map entries are of type 'struct BigMapEntry',
+ * #GNUNET_YES if the map entries are of type 'struct SmallMapEntry'.
*/
int use_small_entries;
* to the map, so that iterators can check if they are still valid.
*/
unsigned int modification_counter;
+
+ /**
+ * Map entries indicating iteration positions currently
+ * in use by #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Only used up to @e next_cache_off.
+ */
+ union MapEntry next_cache[NEXT_CACHE_SIZE];
+
+ /**
+ * Offset of @e next_cache entries in use, must be smaller
+ * than #NEXT_CACHE_SIZE.
+ */
+ unsigned int next_cache_off;
};
GNUNET_assert (len > 0);
map = GNUNET_new (struct GNUNET_CONTAINER_MultiPeerMap);
- map->map = GNUNET_malloc (len * sizeof (union MapEntry));
+ map->map = GNUNET_new_array (len,
+ union MapEntry);
map->map_length = len;
map->use_small_entries = do_not_copy_keys;
return map;
* @param map the map
*/
void
-GNUNET_CONTAINER_multipeermap_destroy (struct GNUNET_CONTAINER_MultiPeerMap
- *map)
+GNUNET_CONTAINER_multipeermap_destroy (struct GNUNET_CONTAINER_MultiPeerMap *map)
{
- unsigned int i;
- union MapEntry me;
-
- for (i = 0; i < map->map_length; i++)
+ GNUNET_assert (0 == map->next_cache_off);
+ for (unsigned int i = 0; i < map->map_length; i++)
{
+ union MapEntry me;
+
me = map->map[i];
if (map->use_small_entries)
{
unsigned int kx;
GNUNET_assert (NULL != map);
- GNUNET_memcpy (&kx, key, sizeof (kx));
+ GNUNET_memcpy (&kx,
+ key,
+ sizeof (kx));
return kx % map->map_length;
}
* @return the number of key value pairs
*/
unsigned int
-GNUNET_CONTAINER_multipeermap_size (const struct GNUNET_CONTAINER_MultiPeerMap
- *map)
+GNUNET_CONTAINER_multipeermap_size (const struct GNUNET_CONTAINER_MultiPeerMap *map)
{
return map->size;
}
* key-value pairs with value NULL
*/
void *
-GNUNET_CONTAINER_multipeermap_get (const struct GNUNET_CONTAINER_MultiPeerMap
- *map, const struct GNUNET_PeerIdentity *key)
+GNUNET_CONTAINER_multipeermap_get (const struct GNUNET_CONTAINER_MultiPeerMap *map,
+ const struct GNUNET_PeerIdentity *key)
{
union MapEntry me;
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_PeerIdentity)))
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_PeerIdentity)))
return sme->value;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_PeerIdentity)))
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_PeerIdentity)))
return bme->value;
}
return NULL;
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multipeermap_iterate (const struct
- GNUNET_CONTAINER_MultiPeerMap *map,
+GNUNET_CONTAINER_multipeermap_iterate (struct GNUNET_CONTAINER_MultiPeerMap *map,
GNUNET_CONTAINER_PeerMapIterator it,
void *it_cls)
{
int count;
- unsigned int i;
union MapEntry me;
+ union MapEntry *ce;
struct GNUNET_PeerIdentity kc;
count = 0;
GNUNET_assert (NULL != map);
- for (i = 0; i < map->map_length; i++)
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
+ for (unsigned int i = 0; i < map->map_length; i++)
{
me = map->map[i];
if (map->use_small_entries)
{
struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
- nxt = me.sme;
- while (NULL != (sme = nxt))
+ ce->sme = me.sme;
+ while (NULL != (sme = ce->sme))
{
- nxt = sme->next;
+ ce->sme = sme->next;
if (NULL != it)
{
- if (GNUNET_OK != it (it_cls, sme->key, sme->value))
+ if (GNUNET_OK != it (it_cls,
+ sme->key,
+ sme->value))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
}
count++;
}
else
{
struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ ce->bme = me.bme;
+ while (NULL != (bme = ce->bme))
{
- nxt = bme->next;
+ ce->bme = bme->next;
if (NULL != it)
{
kc = bme->key;
- if (GNUNET_OK != it (it_cls, &kc, bme->value))
+ if (GNUNET_OK != it (it_cls,
+ &kc,
+ bme->value))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
}
count++;
}
}
}
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return count;
}
+/**
+ * We are about to free() the @a bme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param bme the entry that is about to be free'd
+ */
+static void
+update_next_cache_bme (struct GNUNET_CONTAINER_MultiPeerMap *map,
+ const struct BigMapEntry *bme)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i].bme == bme)
+ map->next_cache[i].bme = bme->next;
+}
+
+
+/**
+ * We are about to free() the @a sme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param sme the entry that is about to be free'd
+ */
+static void
+update_next_cache_sme (struct GNUNET_CONTAINER_MultiPeerMap *map,
+ const struct SmallMapEntry *sme)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i].sme == sme)
+ map->next_cache[i].sme = sme->next;
+}
+
+
/**
* Remove the given key-value pair from the map. Note that if the
* key-value pair is in the map multiple times, only one of the pairs
* @param map the map
* @param key key of the key-value pair
* @param value value of the key-value pair
- * @return GNUNET_YES on success, GNUNET_NO if the key-value pair
+ * @return #GNUNET_YES on success, #GNUNET_NO if the key-value pair
* is not in the map
*/
int
unsigned int i;
map->modification_counter++;
-
i = idx_of (map, key);
me = map->map[i];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
- struct SmallMapEntry *p;
+ struct SmallMapEntry *p = NULL;
- p = NULL;
- for (sme = me.sme; NULL != sme; sme = sme->next)
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
{
if ((0 == memcmp (key, sme->key, sizeof (struct GNUNET_PeerIdentity))) &&
(value == sme->value))
map->map[i].sme = sme->next;
else
p->next = sme->next;
+ update_next_cache_sme (map,
+ sme);
GNUNET_free (sme);
map->size--;
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
- struct BigMapEntry *p;
+ struct BigMapEntry *p = NULL;
- p = NULL;
- for (bme = me.bme; NULL != bme; bme = bme->next)
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
{
- if ((0 == memcmp (key, &bme->key, sizeof (struct GNUNET_PeerIdentity))) &&
+ if ((0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_PeerIdentity))) &&
(value == bme->value))
{
if (NULL == p)
map->map[i].bme = bme->next;
else
- p->next = bme->next;
+ p->next = bme->next;
+ update_next_cache_bme (map,
+ bme);
GNUNET_free (bme);
map->size--;
return GNUNET_YES;
* @return number of values removed
*/
int
-GNUNET_CONTAINER_multipeermap_remove_all (struct GNUNET_CONTAINER_MultiPeerMap
- *map, const struct GNUNET_PeerIdentity *key)
+GNUNET_CONTAINER_multipeermap_remove_all (struct GNUNET_CONTAINER_MultiPeerMap *map,
+ const struct GNUNET_PeerIdentity *key)
{
union MapEntry me;
unsigned int i;
sme = me.sme;
while (NULL != sme)
{
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_PeerIdentity)))
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_PeerIdentity)))
{
if (NULL == p)
map->map[i].sme = sme->next;
else
p->next = sme->next;
+ update_next_cache_sme (map,
+ sme);
GNUNET_free (sme);
map->size--;
if (NULL == p)
bme = me.bme;
while (NULL != bme)
{
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_PeerIdentity)))
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_PeerIdentity)))
{
if (NULL == p)
map->map[i].bme = bme->next;
else
p->next = bme->next;
+ update_next_cache_bme (map,
+ bme);
GNUNET_free (bme);
map->size--;
if (NULL == p)
*
* @param map the map
* @param key the key to test if a value exists for it
- * @return GNUNET_YES if such a value exists,
- * GNUNET_NO if not
+ * @return #GNUNET_YES if such a value exists,
+ * #GNUNET_NO if not
*/
int
-GNUNET_CONTAINER_multipeermap_contains (const struct
- GNUNET_CONTAINER_MultiPeerMap *map,
+GNUNET_CONTAINER_multipeermap_contains (const struct GNUNET_CONTAINER_MultiPeerMap *map,
const struct GNUNET_PeerIdentity *key)
{
union MapEntry me;
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_PeerIdentity)))
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_PeerIdentity)))
return GNUNET_YES;
}
* @param map the map
* @param key the key to test if a value exists for it
* @param value value to test for
- * @return GNUNET_YES if such a value exists,
- * GNUNET_NO if not
+ * @return #GNUNET_YES if such a value exists,
+ * #GNUNET_NO if not
*/
int
-GNUNET_CONTAINER_multipeermap_contains_value (const struct
- GNUNET_CONTAINER_MultiPeerMap
- *map, const struct GNUNET_PeerIdentity *key,
+GNUNET_CONTAINER_multipeermap_contains_value (const struct GNUNET_CONTAINER_MultiPeerMap *map,
+ const struct GNUNET_PeerIdentity *key,
const void *value)
{
union MapEntry me;
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
- if ( (0 == memcmp (key, sme->key, sizeof (struct GNUNET_PeerIdentity))) &&
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
+ if ( (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_PeerIdentity))) &&
(sme->value == value) )
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
- if ( (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_PeerIdentity))) &&
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
+ if ( (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_PeerIdentity))) &&
(bme->value == value) )
return GNUNET_YES;
}
old_map = map->map;
old_len = map->map_length;
new_len = old_len * 2;
- new_map = GNUNET_malloc (sizeof (union MapEntry) * new_len);
+ new_map = GNUNET_new_array (new_len,
+ union MapEntry);
map->map_length = new_len;
map->map = new_map;
for (i = 0; i < old_len; i++)
* @param opt options for put
* @return #GNUNET_OK on success,
* #GNUNET_NO if a value was replaced (with REPLACE)
- * #GNUNET_SYSERR if GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY was the option and the
+ * #GNUNET_SYSERR if #GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY was the option and the
* value already exists
*/
int
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multipeermap_get_multiple (const struct GNUNET_CONTAINER_MultiPeerMap *map,
+GNUNET_CONTAINER_multipeermap_get_multiple (struct GNUNET_CONTAINER_MultiPeerMap *map,
const struct GNUNET_PeerIdentity *key,
GNUNET_CONTAINER_PeerMapIterator it,
void *it_cls)
{
int count;
union MapEntry me;
-
+ union MapEntry *ce;
+
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
count = 0;
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
- nxt = me.sme;
- while (NULL != (sme = nxt))
+ ce->sme = me.sme;
+ while (NULL != (sme = ce->sme))
{
- nxt = sme->next;
- if (0 != memcmp (key, sme->key, sizeof (struct GNUNET_PeerIdentity)))
+ ce->sme = sme->next;
+ if (0 != memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_PeerIdentity)))
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, sme->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ sme->value)))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
count++;
}
}
else
{
struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ ce->bme = me.bme;
+ while (NULL != (bme = ce->bme))
{
- nxt = bme->next;
- if (0 != memcmp (key, &bme->key, sizeof (struct GNUNET_PeerIdentity)))
+ ce->bme = bme->next;
+ if (0 != memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_PeerIdentity)))
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, bme->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ bme->value)))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
count++;
}
}
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return count;
}
void *it_cls)
{
unsigned int off;
- unsigned int idx;
union MapEntry me;
-
+
if (0 == map->size)
return 0;
if (NULL == it)
return 1;
off = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
map->size);
- for (idx = 0; idx < map->map_length; idx++)
+ for (unsigned int idx = 0; idx < map->map_length; idx++)
{
me = map->map[idx];
if (map->use_small_entries)
if (0 == off)
{
if (GNUNET_OK != it (it_cls,
- &bme->key, bme->value))
- return GNUNET_SYSERR;
- return 1;
+ &bme->key,
+ bme->value))
+ return GNUNET_SYSERR;
+ return 1;
}
off--;
}
#define LOG(kind,...) GNUNET_log_from (kind, "util-container-multishortmap", __VA_ARGS__)
+/**
+ * Maximum recursion depth for callbacks of
+ * #GNUNET_CONTAINER_multihashmap_get_multiple() themselve s
+ * again calling #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Should be totally excessive, but if violated we die.
+ */
+#define NEXT_CACHE_SIZE 16
+
+
/**
* An entry in the hash map with the full key.
*/
unsigned int map_length;
/**
- * GNUNET_NO if the map entries are of type 'struct BigMapEntry',
- * GNUNET_YES if the map entries are of type 'struct SmallMapEntry'.
+ * #GNUNET_NO if the map entries are of type 'struct BigMapEntry',
+ * #GNUNET_YES if the map entries are of type 'struct SmallMapEntry'.
*/
int use_small_entries;
* to the map, so that iterators can check if they are still valid.
*/
unsigned int modification_counter;
+
+ /**
+ * Map entries indicating iteration positions currently
+ * in use by #GNUNET_CONTAINER_multihashmap_get_multiple().
+ * Only used up to @e next_cache_off.
+ */
+ union MapEntry next_cache[NEXT_CACHE_SIZE];
+
+ /**
+ * Offset of @e next_cache entries in use, must be smaller
+ * than #NEXT_CACHE_SIZE.
+ */
+ unsigned int next_cache_off;
+
};
GNUNET_assert (len > 0);
map = GNUNET_new (struct GNUNET_CONTAINER_MultiShortmap);
- map->map = GNUNET_malloc (len * sizeof (union MapEntry));
+ map->map = GNUNET_new_array (len,
+ union MapEntry);
map->map_length = len;
map->use_small_entries = do_not_copy_keys;
return map;
* @param map the map
*/
void
-GNUNET_CONTAINER_multishortmap_destroy (struct GNUNET_CONTAINER_MultiShortmap
- *map)
+GNUNET_CONTAINER_multishortmap_destroy (struct GNUNET_CONTAINER_MultiShortmap *map)
{
- unsigned int i;
- union MapEntry me;
-
- for (i = 0; i < map->map_length; i++)
+ GNUNET_assert (0 == map->next_cache_off);
+ for (unsigned int i = 0; i < map->map_length; i++)
{
+ union MapEntry me;
+
me = map->map[i];
if (map->use_small_entries)
{
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_ShortHashCode)))
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
return sme->value;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_ShortHashCode)))
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
return bme->value;
}
return NULL;
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multishortmap_iterate (const struct GNUNET_CONTAINER_MultiShortmap *map,
- GNUNET_CONTAINER_ShortmapIterator it,
- void *it_cls)
+GNUNET_CONTAINER_multishortmap_iterate (struct GNUNET_CONTAINER_MultiShortmap *map,
+ GNUNET_CONTAINER_ShortmapIterator it,
+ void *it_cls)
{
int count;
- unsigned int i;
union MapEntry me;
+ union MapEntry *ce;
struct GNUNET_ShortHashCode kc;
count = 0;
GNUNET_assert (NULL != map);
- for (i = 0; i < map->map_length; i++)
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
+ for (unsigned int i = 0; i < map->map_length; i++)
{
me = map->map[i];
if (map->use_small_entries)
{
struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
-
- nxt = me.sme;
- while (NULL != (sme = nxt))
+
+ ce->sme = me.sme;
+ while (NULL != (sme = ce->sme))
{
- nxt = sme->next;
- if (NULL != it)
+ ce->sme = sme->next;
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ sme->key,
+ sme->value)) )
{
- if (GNUNET_OK != it (it_cls, sme->key, sme->value))
- return GNUNET_SYSERR;
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
+ return GNUNET_SYSERR;
}
count++;
}
else
{
struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ ce->bme = me.bme;
+ while (NULL != (bme = ce->bme))
{
- nxt = bme->next;
+ ce->bme = bme->next;
if (NULL != it)
{
kc = bme->key;
- if (GNUNET_OK != it (it_cls, &kc, bme->value))
+ if (GNUNET_OK != it (it_cls,
+ &kc,
+ bme->value))
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
}
count++;
}
}
}
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return count;
}
+/**
+ * We are about to free() the @a bme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param bme the entry that is about to be free'd
+ */
+static void
+update_next_cache_bme (struct GNUNET_CONTAINER_MultiShortmap *map,
+ const struct BigMapEntry *bme)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i].bme == bme)
+ map->next_cache[i].bme = bme->next;
+}
+
+
+/**
+ * We are about to free() the @a sme, make sure it is not in
+ * the list of next values for any iterator in the @a map's next_cache.
+ *
+ * @param map the map to check
+ * @param sme the entry that is about to be free'd
+ */
+static void
+update_next_cache_sme (struct GNUNET_CONTAINER_MultiShortmap *map,
+ const struct SmallMapEntry *sme)
+{
+ for (unsigned int i=0;i<map->next_cache_off;i++)
+ if (map->next_cache[i].sme == sme)
+ map->next_cache[i].sme = sme->next;
+}
+
+
/**
* Remove the given key-value pair from the map. Note that if the
* key-value pair is in the map multiple times, only one of the pairs
unsigned int i;
map->modification_counter++;
-
i = idx_of (map, key);
me = map->map[i];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
- struct SmallMapEntry *p;
-
- p = NULL;
- for (sme = me.sme; NULL != sme; sme = sme->next)
+ struct SmallMapEntry *p = NULL;
+
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
{
- if ((0 == memcmp (key, sme->key, sizeof (struct GNUNET_ShortHashCode))) &&
+ if ((0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_ShortHashCode))) &&
(value == sme->value))
{
if (NULL == p)
map->map[i].sme = sme->next;
else
p->next = sme->next;
+ update_next_cache_sme (map,
+ sme);
GNUNET_free (sme);
map->size--;
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
- struct BigMapEntry *p;
-
- p = NULL;
- for (bme = me.bme; NULL != bme; bme = bme->next)
+ struct BigMapEntry *p = NULL;
+
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
{
- if ((0 == memcmp (key, &bme->key, sizeof (struct GNUNET_ShortHashCode))) &&
+ if ((0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_ShortHashCode))) &&
(value == bme->value))
{
if (NULL == p)
map->map[i].bme = bme->next;
else
p->next = bme->next;
+ update_next_cache_bme (map,
+ bme);
GNUNET_free (bme);
map->size--;
return GNUNET_YES;
map->map[i].sme = sme->next;
else
p->next = sme->next;
+ update_next_cache_sme (map,
+ sme);
GNUNET_free (sme);
map->size--;
if (NULL == p)
map->map[i].bme = bme->next;
else
p->next = bme->next;
+ update_next_cache_bme (map,
+ bme);
GNUNET_free (bme);
map->size--;
if (NULL == p)
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_ShortHashCode)))
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_ShortHashCode)))
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
return GNUNET_YES;
}
return GNUNET_NO;
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
- if ( (0 == memcmp (key, sme->key, sizeof (struct GNUNET_ShortHashCode))) &&
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
+ if ( (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_ShortHashCode))) &&
(sme->value == value) )
return GNUNET_YES;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
- if ( (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_ShortHashCode))) &&
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
+ if ( (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_ShortHashCode))) &&
(bme->value == value) )
return GNUNET_YES;
}
unsigned int old_len;
unsigned int new_len;
unsigned int idx;
- unsigned int i;
map->modification_counter++;
old_map = map->map;
old_len = map->map_length;
new_len = old_len * 2;
- new_map = GNUNET_malloc (sizeof (union MapEntry) * new_len);
+ new_map = GNUNET_new_array (new_len,
+ union MapEntry);
map->map_length = new_len;
map->map = new_map;
- for (i = 0; i < old_len; i++)
+ for (unsigned int i = 0; i < old_len; i++)
{
if (map->use_small_entries)
{
* @param opt options for put
* @return #GNUNET_OK on success,
* #GNUNET_NO if a value was replaced (with REPLACE)
- * #GNUNET_SYSERR if GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY was the option and the
+ * #GNUNET_SYSERR if #GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY was the option and the
* value already exists
*/
int
me = map->map[i];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
-
- for (sme = me.sme; NULL != sme; sme = sme->next)
- if (0 == memcmp (key, sme->key, sizeof (struct GNUNET_ShortHashCode)))
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
+ if (0 == memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
{
if (opt == GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)
return GNUNET_SYSERR;
}
else
{
- struct BigMapEntry *bme;
-
- for (bme = me.bme; NULL != bme; bme = bme->next)
- if (0 == memcmp (key, &bme->key, sizeof (struct GNUNET_ShortHashCode)))
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
+ if (0 == memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
{
if (opt == GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)
return GNUNET_SYSERR;
* #GNUNET_SYSERR if it aborted iteration
*/
int
-GNUNET_CONTAINER_multishortmap_get_multiple (const struct GNUNET_CONTAINER_MultiShortmap *map,
+GNUNET_CONTAINER_multishortmap_get_multiple (struct GNUNET_CONTAINER_MultiShortmap *map,
const struct GNUNET_ShortHashCode *key,
GNUNET_CONTAINER_ShortmapIterator it,
void *it_cls)
{
int count;
union MapEntry me;
+ union MapEntry *ce;
+ ce = &map->next_cache[map->next_cache_off];
+ GNUNET_assert (++map->next_cache_off < NEXT_CACHE_SIZE);
count = 0;
me = map->map[idx_of (map, key)];
if (map->use_small_entries)
{
struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
- nxt = me.sme;
- while (NULL != (sme = nxt))
+ ce->sme = me.sme;
+ while (NULL != (sme = ce->sme))
{
- nxt = sme->next;
- if (0 != memcmp (key, sme->key, sizeof (struct GNUNET_ShortHashCode)))
+ ce->sme = sme->next;
+ if (0 != memcmp (key,
+ sme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, sme->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ sme->value)) )
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
count++;
}
}
else
{
struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ ce->bme = me.bme;
+ while (NULL != (bme = ce->bme))
{
- nxt = bme->next;
- if (0 != memcmp (key, &bme->key, sizeof (struct GNUNET_ShortHashCode)))
+ ce->bme = bme->next;
+ if (0 != memcmp (key,
+ &bme->key,
+ sizeof (struct GNUNET_ShortHashCode)))
continue;
- if ((it != NULL) && (GNUNET_OK != it (it_cls, key, bme->value)))
+ if ( (NULL != it) &&
+ (GNUNET_OK != it (it_cls,
+ key,
+ bme->value)) )
+ {
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return GNUNET_SYSERR;
+ }
count++;
}
}
+ GNUNET_assert (--map->next_cache_off < NEXT_CACHE_SIZE);
return count;
}
void *it_cls)
{
unsigned int off;
- unsigned int idx;
union MapEntry me;
if (0 == map->size)
return 1;
off = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE,
map->size);
- for (idx = 0; idx < map->map_length; idx++)
+ for (unsigned int idx = 0; idx < map->map_length; idx++)
{
me = map->map[idx];
if (map->use_small_entries)
{
- struct SmallMapEntry *sme;
- struct SmallMapEntry *nxt;
-
- nxt = me.sme;
- while (NULL != (sme = nxt))
+ for (struct SmallMapEntry *sme = me.sme; NULL != sme; sme = sme->next)
{
- nxt = sme->next;
if (0 == off)
{
if (GNUNET_OK != it (it_cls,
}
else
{
- struct BigMapEntry *bme;
- struct BigMapEntry *nxt;
-
- nxt = me.bme;
- while (NULL != (bme = nxt))
+ for (struct BigMapEntry *bme = me.bme; NULL != bme; bme = bme->next)
{
- nxt = bme->next;
if (0 == off)
{
if (GNUNET_OK != it (it_cls,
projects / oweals / gnunet.git / commitdiff