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return table;
}
static void
resize(struct objc_hashtable *table, uint32_t count)
{
uint32_t fullness, nsize;
struct objc_hashtable_bucket **ndata;
uint32_t fullness, newSize;
struct objc_hashtable_bucket **newData;
if (count > UINT32_MAX / sizeof(*table->data) || count > UINT32_MAX / 8)
OBJC_ERROR("Integer overflow!");
fullness = count * 8 / table->size;
if (fullness >= 6) {
if (table->size > UINT32_MAX / 2)
return;
nsize = table->size * 2;
newSize = table->size * 2;
} else if (fullness <= 1)
nsize = table->size / 2;
newSize = table->size / 2;
else
return;
if (count < table->count && nsize < 16)
if (count < table->count && newSize < 16)
return;
if ((ndata = calloc(nsize, sizeof(sizeof(*ndata)))) == NULL)
if ((newData = calloc(newSize, sizeof(sizeof(*newData)))) == NULL)
OBJC_ERROR("Not enough memory to resize hash table!");
for (uint32_t i = 0; i < table->size; i++) {
if (table->data[i] != NULL &&
table->data[i] != &objc_deleted_bucket) {
uint32_t j, last;
last = nsize;
last = newSize;
for (j = table->data[i]->hash & (nsize - 1);
j < last && ndata[j] != NULL; j++);
for (j = table->data[i]->hash & (newSize - 1);
j < last && newData[j] != NULL; j++);
if (j >= last) {
last = table->data[i]->hash & (nsize - 1);
last = table->data[i]->hash & (newSize - 1);
for (j = 0; j < last && ndata[j] != NULL; j++);
for (j = 0; j < last && newData[j] != NULL;
j++);
}
if (j >= last)
OBJC_ERROR("No free bucket!");
ndata[j] = table->data[i];
newData[j] = table->data[i];
}
}
free(table->data);
table->data = ndata;
table->size = nsize;
table->data = newData;
table->size = newSize;
}
static inline bool
index_for_key(struct objc_hashtable *table, const void *key, uint32_t *idx)
indexForKey(struct objc_hashtable *table, const void *key, uint32_t *idx)
{
uint32_t i, hash;
hash = table->hash(key) & (table->size - 1);
for (i = hash; i < table->size && table->data[i] != NULL; i++) {
if (table->data[i] == &objc_deleted_bucket)
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}
return false;
}
void
objc_hashtable_set(struct objc_hashtable *table, const void *key,
const void *obj)
const void *object)
{
uint32_t i, hash, last;
struct objc_hashtable_bucket *bucket;
if (index_for_key(table, key, &i)) {
table->data[i]->obj = obj;
if (indexForKey(table, key, &i)) {
table->data[i]->object = object;
return;
}
resize(table, table->count + 1);
hash = table->hash(key);
last = table->size;
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OBJC_ERROR("No free bucket!");
if ((bucket = malloc(sizeof(*bucket))) == NULL)
OBJC_ERROR("Not enough memory to allocate hash table bucket!");
bucket->key = key;
bucket->hash = hash;
bucket->obj = obj;
bucket->object = object;
table->data[i] = bucket;
table->count++;
}
void *
objc_hashtable_get(struct objc_hashtable *table, const void *key)
{
uint32_t idx;
if (!index_for_key(table, key, &idx))
if (!indexForKey(table, key, &idx))
return NULL;
return (void *)table->data[idx]->obj;
return (void *)table->data[idx]->object;
}
void
objc_hashtable_delete(struct objc_hashtable *table, const void *key)
{
uint32_t idx;
if (!index_for_key(table, key, &idx))
if (!indexForKey(table, key, &idx))
return;
free(table->data[idx]);
table->data[idx] = &objc_deleted_bucket;
table->count--;
resize(table, table->count);
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