/**
* This is the main server loop. This code is responsible for adding connections and triggering hooks.
*
* @throws \Navarr\Socket\Exception\SocketException
*
* @return bool Whether or not to shutdown the server
*/
protected function loopOnce()
{
// Get all the Sockets we should be reading from
$read = array_merge([$this->masterSocket], $this->clients);
// Set up a block call to socket_select
$write = null;
$except = null;
$ret = Socket::select($read, $write, $except, $this->timeout);
if (!is_null($this->timeout) && $ret == 0) {
if ($this->triggerHooks(self::HOOK_TIMEOUT, $this->masterSocket) === false) {
// This only happens when a hook tells the server to shut itself down.
return false;
}
}
// If there is a new connection, add it
if (in_array($this->masterSocket, $read)) {
unset($read[array_search($this->masterSocket, $read)]);
$socket = $this->masterSocket->accept();
$this->clients[] = $socket;
if ($this->triggerHooks(self::HOOK_CONNECT, $socket) === false) {
// This only happens when a hook tells the server to shut itself down.
return false;
}
unset($socket);
}
// Check for input from each client
foreach ($read as $client) {
$input = $this->read($client);
if ($input === '') {
if ($this->disconnect($client) === false) {
// This only happens when a hook tells the server to shut itself down.
return false;
}
} else {
if ($this->triggerHooks(self::HOOK_INPUT, $client, $input) === false) {
// This only happens when a hook tells the server to shut itself down.
return false;
}
}
unset($input);
}
// Unset the variables we were holding on to
unset($read);
unset($write);
unset($except);
// Tells self::run to Continue the Loop
return true;
}
