| | |
| | | | Author: Thomas Bruederli <roundcube@gmail.com> | |
| | | | Author: Aleksander Machniak <alec@alec.pl> | |
| | | +-----------------------------------------------------------------------+ |
| | | |
| | | $Id$ |
| | | |
| | | */ |
| | | |
| | | |
| | |
| | | class rcube_cache |
| | | { |
| | | /** |
| | | * Instance of rcube_mdb2 or Memcache class |
| | | * Instance of database handler |
| | | * |
| | | * @var rcube_mdb2/Memcache |
| | | * @var rcube_db|Memcache|bool |
| | | */ |
| | | private $db; |
| | | private $type; |
| | |
| | | private $packed; |
| | | private $index; |
| | | private $cache = array(); |
| | | private $cache_keys = array(); |
| | | private $cache_changes = array(); |
| | | private $cache_sums = array(); |
| | | |
| | |
| | | $this->cache = array(); |
| | | $this->cache_changed = false; |
| | | $this->cache_changes = array(); |
| | | $this->cache_keys = array(); |
| | | $this->cache_sums = array(); |
| | | } |
| | | // Remove keys by name prefix |
| | | else if ($prefix_mode) { |
| | |
| | | if (strpos($k, $key) === 0) { |
| | | $this->cache[$k] = null; |
| | | $this->cache_changes[$k] = false; |
| | | unset($this->cache_keys[$k]); |
| | | unset($this->cache_sums[$k]); |
| | | } |
| | | } |
| | | } |
| | |
| | | else { |
| | | $this->cache[$key] = null; |
| | | $this->cache_changes[$key] = false; |
| | | unset($this->cache_keys[$key]); |
| | | unset($this->cache_sums[$key]); |
| | | } |
| | | |
| | | // Remove record(s) from the backend |
| | |
| | | } |
| | | else { |
| | | $sql_result = $this->db->limitquery( |
| | | "SELECT cache_id, data, cache_key". |
| | | "SELECT data, cache_key". |
| | | " FROM ".$this->db->table_name('cache'). |
| | | " WHERE user_id = ?". |
| | | " AND cache_key = ?". |
| | |
| | | |
| | | $this->cache[$key] = $data; |
| | | $this->cache_sums[$key] = $md5sum; |
| | | $this->cache_keys[$key] = $sql_arr['cache_id']; |
| | | } |
| | | else { |
| | | $this->cache[$key] = null; |
| | |
| | | return $this->add_record($this->ckey($key), $data); |
| | | } |
| | | |
| | | $key_exists = $this->cache_keys[$key]; |
| | | $key_exists = array_key_exists($key, $this->cache_sums); |
| | | $key = $this->prefix . '.' . $key; |
| | | |
| | | // Remove NULL rows (here we don't need to check if the record exist) |
| | |
| | | */ |
| | | private function delete_record($key, $index=true) |
| | | { |
| | | if ($this->type == 'memcache') |
| | | $this->db->delete($this->ckey($key)); |
| | | else |
| | | if ($this->type == 'memcache') { |
| | | // #1488592: use 2nd argument |
| | | $this->db->delete($this->ckey($key), 0); |
| | | } |
| | | else { |
| | | apc_delete($this->ckey($key)); |
| | | } |
| | | |
| | | if ($index) { |
| | | if (($idx = array_search($key, $this->index)) !== false) { |