/**
* Adds data
*
* @param string $key
* @param mixed $var
* @param integer $expire
* @return boolean
*/
function add($key, $var, $expire = 0)
{
if (is_object($this->_memcached)) {
return $this->_memcached->add($key, $var, $expire);
}
return false;
}
/**
* Blocks the class mutex.
* Method blocks until mutex is available!
* ATTENTION: make sure that you *always* release a blocked mutex!
*
* We try to add mutex to our cache, until we succeed.
* It will fail as long other client has stored it or the
* MEMCACHED_MUTEX_TIMEOUT is reached.
*
* @access public
* @return boolean
*/
public function BlockMutex()
{
if (!$this->IsActive()) {
return false;
}
$n = 0;
while (!$this->memcached->add($this->typeMutex, true, MEMCACHED_MUTEX_TIMEOUT)) {
if (++$n % $this->logWaitCycles == 0) {
ZLog::Write(LOGLEVEL_DEBUG, sprintf("IpcMemcachedProvider->BlockMutex() waiting to aquire mutex for type: %s ", $this->typeMutex));
}
// wait before retrying
usleep(MEMCACHED_BLOCK_WAIT * 1000);
if ($n > $this->maxWaitCycles) {
ZLog::Write(LOGLEVEL_ERROR, sprintf("IpcMemcachedProvider->BlockMutex() could not aquire mutex for type: %s. Check memcache service!", $this->typeMutex));
$this->markAsDown();
return false;
}
}
if ($n * MEMCACHED_BLOCK_WAIT > 50) {
ZLog::Write(LOGLEVEL_WARN, sprintf("IpcMemcachedProvider->BlockMutex() mutex aquired after waiting for %sms for type: %s", $n * MEMCACHED_BLOCK_WAIT, $this->typeMutex));
}
return true;
}
function db_query_mysql($sql, &$res, $timeout = 0, $type = '0', $key = null)
{
#echo "MC:".($type)."#<br>";
global $dbhost, $dbuser, $dbpassword, $dbname;
$db = new db_Mysql();
$db->init_con($dbhost, $dbuser, $dbpassword, $dbname);
$db->create_con();
$result = $db->query($sql);
if ($result == false) {
$db->free();
$db->close();
return false;
} else {
$res = array();
while ($row = mysql_fetch_array($result, MYSQL_BOTH)) {
$res[] = $row;
}
global $memcached_host;
$options = array('servers' => array($memcached_host), 'debug' => false, 'compress_threshold' => 510240, 'persistant' => false);
$mc = new memcached($options);
if ($type == "1") {
//add type
$mc->add($key, $res, $timeout);
}
if ($type == "2") {
//replace
$mc->replace($key, $res, $timeout);
}
$mc->disconnect_all();
}
$db->free();
$db->close();
return true;
}
