/**
* Checks whether the server is up and running (accepting connections).
* Will return true/false based on the server status.
*
* @return bool Returns true if server is running, false if not.
* @access public
*/
public function isUp()
{
$addr = $this->config->getAddress();
$port = $this->config->getPort();
$sock = @fsockopen($addr, $port, $errno, $errstr, (int) Flux::config('ServerStatusTimeout'));
if (is_resource($sock)) {
fclose($sock);
return true;
} else {
return false;
}
}
/**
* Establish connection to server based on config.
*
* @param Flux_Config $dbConfig
* @return PDO
* @access private
*/
private function connect(Flux_Config $dbConfig)
{
$dsn = 'mysql:';
// Differentiate between a socket-type connection or an ip:port
// connection.
if ($sock = $dbConfig->getSocket()) {
$dsn .= "unix_socket={$sock}";
} else {
$dsn .= 'host=' . $dbConfig->getHostname();
if ($port = $dbConfig->getPort()) {
$dsn .= ";port={$port}";
}
}
// May or may not have a database name specified.
if ($dbName = $dbConfig->getDatabase()) {
$dsn .= ";dbname={$dbName}";
}
$persistent = array(PDO::ATTR_PERSISTENT => (bool) $dbConfig->getPersistent());
return new PDO($dsn, $dbConfig->getUsername(), $dbConfig->getPassword(), $persistent);
}
