private function _gen_init_meta_ack()
{
$ack = new InitMetaAckFrame();
$ack->status = 0;
$ack->meta_name = 'meta';
$ack->store();
$data = $ack->buffer();
$err_ack = new UninitMetaAckFrame();
$err_ack->status = 0;
$err_ack->store();
$err_data = $err_ack->buffer();
return array('good' => $data, 'bad' => $err_data);
}
/**
* Initialize the meta on the meta agent
* @param $conf : array of meta parameters
* @return true on success or false on failure
*/
private function _init_meta($meta_params)
{
// create init_meta_command
$cmd = new InitMetaFrame();
if (!$cmd->pack($meta_params)) {
$this->last_error_message = "_init_meta error";
return false;
}
// send
$res_body = $this->_request($cmd);
if (null === $res_body) {
$this->last_error_message = "_init_meta no ack";
return false;
}
// parse ack
$ack = new InitMetaAckFrame();
if (!$ack->load($res_body)) {
$this->last_error_message = '_init_meta error ack';
return false;
}
$this->meta_name = $ack->meta_name;
// 成功则得到meta name
return true;
}