/**
* Executing a Command on a MemCache Server
* With the help of http://github.com/memcached/memcached/blob/master/doc/protocol.txt
* Return the response, or false otherwise
*
* @param String $command Command
* @param String $server Server Hostname
* @param Integer $port Server Port
*
* @return String|Boolean
*/
public function exec($command, $server, $port)
{
# Variables
$buffer = '';
$handle = null;
# Socket Opening
if (!($handle = @fsockopen($server, $port, $errno, $errstr, self::$_ini->get('connection_timeout')))) {
# Adding error to log
self::$_log = utf8_encode($errstr);
Library_Data_Error::add(utf8_encode($errstr));
return false;
}
# Sending Command ...
fwrite($handle, $command . "\r\n");
# Getting first line
$buffer = fgets($handle);
# Checking if result is valid
if ($this->end($buffer, $command)) {
# Closing socket
fclose($handle);
# Adding error to log
self::$_log = $buffer;
return false;
}
# Reading Results
while (!feof($handle)) {
# Getting line
$line = fgets($handle);
$buffer .= $line;
# Checking for end of MemCache command
if ($this->end($line, $command)) {
break;
}
}
# Closing socket
fclose($handle);
return $buffer;
}
$stats[$server]['limit_maxbytes'] = $actual[$server]['limit_maxbytes'];
$stats[$server]['curr_connections'] = $actual[$server]['curr_connections'];
$stats[$server]['query_time'] = $actual[$server]['query_time'];
}
}
# Saving new stats dump
file_put_contents($file_path, serialize($actual));
# Showing stats
include 'View/LiveStats/Stats.phtml';
break;
# Default : No command
# Default : No command
default:
# Initializing : making stats dump
$stats = array();
foreach ($_ini->cluster($cluster) as $name => $server) {
$stats[$name] = Library_Command_Factory::instance('stats_api')->stats($server['hostname'], $server['port']);
}
# Saving first stats dump
file_put_contents($file_path, serialize($stats));
# Searching for connection error, adding some time to refresh rate to prevent error
$refresh_rate = max($_ini->get('refresh_rate'), count($_ini->cluster($cluster)) * 0.25 + Library_Data_Error::count() * (0.5 + $_ini->get('connection_timeout')));
# Showing header
include 'View/Header.phtml';
# Showing live stats frame
include 'View/LiveStats/Frame.phtml';
# include 'View/LiveStats/Graphic.phtml';
# Showing footer
include 'View/Footer.phtml';
break;
}