/**
* Disconnects from servers
*
* @return boolean
*/
function disconnect()
{
if (is_object($this->_memcached)) {
$this->_memcached->disconnect_all();
return true;
}
return false;
}
function db_query($sql, &$res, $timeout, $reload)
{
global $memcached_host;
$options = array('servers' => array($memcached_host), 'debug' => false, 'compress_threshold' => 510240, 'persistant' => false);
if ($timeout < 11) {
return db_query_mysql($sql, $res, $timeout, "0");
}
$mc = new memcached($options);
$key = md5($sql);
$res = $mc->get($key);
$mc->disconnect_all();
if (!$res) {
return db_query_mysql($sql, $res, $timeout, "1", $key);
//添加memcached
} else {
// echo "cached<br>";
if ($reload) {
return db_query_mysql($sql, $res, $timeout, "2", $key);
//替换memcached
}
}
return true;
}
