int dictionary_get_all(DICTIONARY *dict, int (*callback)(void *entry, void *data), void *data) {
int ret = 0;
dictionary_read_lock(dict);
if(likely(dict->values_index.root))
ret = dictionary_walker(dict->values_index.root, callback, data);
dictionary_unlock(dict);
return ret;
}
void dictionary_destroy(DICTIONARY *dict) {
debug(D_DICTIONARY, "Destroying dictionary.");
dictionary_write_lock(dict);
while(dict->values_index.root)
dictionary_name_value_destroy_nolock(dict, (NAME_VALUE *)dict->values_index.root);
dictionary_unlock(dict);
free(dict);
}
void *dictionary_get(DICTIONARY *dict, const char *name) {
debug(D_DICTIONARY, "GET dictionary entry with name '%s'.", name);
dictionary_read_lock(dict);
NAME_VALUE *nv = dictionary_name_value_index_find_nolock(dict, name, 0);
dictionary_unlock(dict);
if(unlikely(!nv)) {
debug(D_DICTIONARY, "Not found dictionary entry with name '%s'.", name);
return NULL;
}
debug(D_DICTIONARY, "Found dictionary entry with name '%s'.", name);
return nv->value;
}
void *dictionary_set(DICTIONARY *dict, const char *name, void *value, size_t value_len) {
debug(D_DICTIONARY, "SET dictionary entry with name '%s'.", name);
uint32_t hash = simple_hash(name);
dictionary_write_lock(dict);
NAME_VALUE *nv = dictionary_name_value_index_find_nolock(dict, name, hash);
if(unlikely(!nv)) {
debug(D_DICTIONARY, "Dictionary entry with name '%s' not found. Creating a new one.", name);
nv = dictionary_name_value_create_nolock(dict, name, value, value_len, hash);
if(unlikely(!nv))
fatal("Cannot create name_value.");
}
else {
debug(D_DICTIONARY, "Dictionary entry with name '%s' found. Changing its value.", name);
if(dict->flags & DICTIONARY_FLAG_VALUE_LINK_DONT_CLONE) {
debug(D_REGISTRY, "Dictionary: linking value to '%s'", name);
nv->value = value;
}
else {
debug(D_REGISTRY, "Dictionary: cloning value to '%s'", name);
// copy the new value without breaking
// any other thread accessing the same entry
void *new = malloc(value_len),
*old = nv->value;
if(unlikely(!new))
fatal("Cannot allocate value of size %zu", value_len);
memcpy(new, value, value_len);
nv->value = new;
debug(D_REGISTRY, "Dictionary: freeing old value of '%s'", name);
free(old);
}
}
dictionary_unlock(dict);
return nv->value;
}
int dictionary_del(DICTIONARY *dict, const char *name) {
int ret;
debug(D_DICTIONARY, "DEL dictionary entry with name '%s'.", name);
dictionary_write_lock(dict);
NAME_VALUE *nv = dictionary_name_value_index_find_nolock(dict, name, 0);
if(unlikely(!nv)) {
debug(D_DICTIONARY, "Not found dictionary entry with name '%s'.", name);
ret = -1;
}
else {
debug(D_DICTIONARY, "Found dictionary entry with name '%s'.", name);
dictionary_name_value_destroy_nolock(dict, nv);
ret = 0;
}
dictionary_unlock(dict);
return ret;
}
