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static bool
defaultEqual(void *object1, void *object2)
{
return (object1 == object2);
}
OF_DIRECT_MEMBERS
@interface OFMapTable ()
- (void)of_setObject: (void *)object
forKey: (void *)key
hash: (unsigned long)hash;
@end
OF_DIRECT_MEMBERS
@interface OFMapTableEnumerator ()
- (instancetype)of_initWithMapTable: (OFMapTable *)mapTable
buckets: (struct of_map_table_bucket **)buckets
capacity: (unsigned long)capacity
mutationsPointer: (unsigned long *)mutationsPtr
OF_METHOD_FAMILY(init);
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initWithKeyFunctions: _keyFunctions
objectFunctions: _objectFunctions
capacity: _capacity];
@try {
for (unsigned long i = 0; i < _capacity; i++)
if (_buckets[i] != NULL && _buckets[i] != &deleted)
[copy of_setObject: _buckets[i]->object
forKey: _buckets[i]->key
hash: OF_ROR(_buckets[i]->hash,
setObject(copy, _buckets[i]->key,
_buckets[i]->object,
OF_ROR(_buckets[i]->hash, _rotate));
_rotate)];
} @catch (id e) {
[copy release];
@throw e;
}
return copy;
}
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if (_keyFunctions.equal(_buckets[i]->key, key))
return _buckets[i]->object;
}
return NULL;
}
static void
- (void)of_resizeForCount: (unsigned long)count OF_DIRECT
resizeForCount(OFMapTable *self, unsigned long count)
{
unsigned long fullness, capacity;
struct of_map_table_bucket **buckets;
if (count > ULONG_MAX / sizeof(*_buckets) || count > ULONG_MAX / 8)
if (count > ULONG_MAX / sizeof(*self->_buckets) ||
count > ULONG_MAX / 8)
@throw [OFOutOfRangeException exception];
fullness = count * 8 / _capacity;
fullness = count * 8 / self->_capacity;
if (fullness >= 6) {
if (_capacity > ULONG_MAX / 2)
if (self->_capacity > ULONG_MAX / 2)
return;
capacity = _capacity * 2;
capacity = self->_capacity * 2;
} else if (fullness <= 1)
capacity = _capacity / 2;
capacity = self->_capacity / 2;
else
return;
/*
* Don't downsize if we have an initial capacity or if we would fall
* below the minimum capacity.
*/
if ((capacity < self->_capacity && count > self->_count) ||
if ((capacity < _capacity && count > _count) || capacity < MIN_CAPACITY)
capacity < MIN_CAPACITY)
return;
buckets = of_alloc_zeroed(capacity, sizeof(*buckets));
for (unsigned long i = 0; i < _capacity; i++) {
if (_buckets[i] != NULL && _buckets[i] != &deleted) {
for (unsigned long i = 0; i < self->_capacity; i++) {
if (self->_buckets[i] != NULL &&
self->_buckets[i] != &deleted) {
unsigned long j, last;
last = capacity;
for (j = _buckets[i]->hash & (capacity - 1);
for (j = self->_buckets[i]->hash & (capacity - 1);
j < last && buckets[j] != NULL; j++);
/* In case the last bucket is already used */
if (j >= last) {
last = _buckets[i]->hash & (capacity - 1);
last = self->_buckets[i]->hash & (capacity - 1);
for (j = 0; j < last &&
buckets[j] != NULL; j++);
}
if (j >= last)
@throw [OFOutOfRangeException exception];
buckets[j] = _buckets[i];
buckets[j] = self->_buckets[i];
}
}
free(_buckets);
_buckets = buckets;
_capacity = capacity;
free(self->_buckets);
self->_buckets = buckets;
self->_capacity = capacity;
}
- (void)of_setObject: (void *)object
forKey: (void *)key
hash: (unsigned long)hash
static void
setObject(OFMapTable *restrict self, void *key, void *object,
unsigned long hash)
{
unsigned long i, last;
void *old;
if (key == NULL || object == NULL)
@throw [OFInvalidArgumentException exception];
hash = OF_ROL(hash, _rotate);
last = _capacity;
hash = OF_ROL(hash, self->_rotate);
last = self->_capacity;
for (i = hash & (self->_capacity - 1);
for (i = hash & (_capacity - 1); i < last && _buckets[i] != NULL; i++) {
if (_buckets[i] == &deleted)
i < last && self->_buckets[i] != NULL; i++) {
if (self->_buckets[i] == &deleted)
continue;
if (_keyFunctions.equal(_buckets[i]->key, key))
if (self->_keyFunctions.equal(self->_buckets[i]->key, key))
break;
}
/* In case the last bucket is already used */
if (i >= last) {
last = hash & (_capacity - 1);
last = hash & (self->_capacity - 1);
for (i = 0; i < last && _buckets[i] != NULL; i++) {
if (_buckets[i] == &deleted)
for (i = 0; i < last && self->_buckets[i] != NULL; i++) {
if (self->_buckets[i] == &deleted)
continue;
if (self->_keyFunctions.equal(
if (_keyFunctions.equal(_buckets[i]->key, key))
self->_buckets[i]->key, key))
break;
}
}
/* Key not in map table */
if (i >= last || self->_buckets[i] == NULL ||
if (i >= last || _buckets[i] == NULL || _buckets[i] == &deleted ||
!_keyFunctions.equal(_buckets[i]->key, key)) {
self->_buckets[i] == &deleted ||
!self->_keyFunctions.equal(self->_buckets[i]->key, key)) {
struct of_map_table_bucket *bucket;
[self of_resizeForCount: _count + 1];
resizeForCount(self, self->_count + 1);
_mutations++;
last = _capacity;
self->_mutations++;
last = self->_capacity;
for (i = hash & (_capacity - 1); i < last &&
_buckets[i] != NULL && _buckets[i] != &deleted; i++);
for (i = hash & (self->_capacity - 1); i < last &&
self->_buckets[i] != NULL && self->_buckets[i] != &deleted;
i++);
/* In case the last bucket is already used */
if (i >= last) {
last = hash & (_capacity - 1);
last = hash & (self->_capacity - 1);
for (i = 0; i < last && _buckets[i] != NULL &&
_buckets[i] != &deleted; i++);
for (i = 0; i < last && self->_buckets[i] != NULL &&
self->_buckets[i] != &deleted; i++);
}
if (i >= last)
@throw [OFOutOfRangeException exception];
bucket = of_alloc(1, sizeof(*bucket));
@try {
bucket->key = _keyFunctions.retain(key);
bucket->key = self->_keyFunctions.retain(key);
} @catch (id e) {
free(bucket);
@throw e;
}
@try {
bucket->object = _objectFunctions.retain(object);
bucket->object = self->_objectFunctions.retain(object);
} @catch (id e) {
_keyFunctions.release(bucket->key);
self->_keyFunctions.release(bucket->key);
free(bucket);
@throw e;
}
bucket->hash = hash;
_buckets[i] = bucket;
_count++;
self->_buckets[i] = bucket;
self->_count++;
return;
}
old = _buckets[i]->object;
_buckets[i]->object = _objectFunctions.retain(object);
_objectFunctions.release(old);
old = self->_buckets[i]->object;
self->_buckets[i]->object = self->_objectFunctions.retain(object);
self->_objectFunctions.release(old);
}
- (void)setObject: (void *)object forKey: (void *)key
{
[self of_setObject: object forKey: key hash: _keyFunctions.hash(key)];
setObject(self, key, object,_keyFunctions.hash(key));
}
- (void)removeObjectForKey: (void *)key
{
unsigned long i, hash, last;
if (key == NULL)
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_keyFunctions.release(_buckets[i]->key);
_objectFunctions.release(_buckets[i]->object);
free(_buckets[i]);
_buckets[i] = &deleted;
_count--;
[self of_resizeForCount: _count];
resizeForCount(self, _count);
return;
}
}
if (i < last)
return;
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_objectFunctions.release(_buckets[i]->object);
free(_buckets[i]);
_buckets[i] = &deleted;
_count--;
_mutations++;
[self of_resizeForCount: _count];
resizeForCount(self, _count);
return;
}
}
}
- (void)removeAllObjects
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