/**
* Éú³Éhead buffer
*/
private function _gen_head_buff()
{
$body = 'test body';
$body_len = strlen($body);
$head = array();
$head['body_len'] = $body_len;
$head['magic_num'] = BigpipeCommonDefine::NSHEAD_CHECKSUM_MAGICNUM;
$head['reserved'] = BigpipeUtilities::adler32($body);
$head_builder = new NsHead();
$head_data = $head_builder->build_nshead($head);
$head['magic_num'] = 0;
$no_magic_num = $head_builder->build_nshead($head);
$head['body_len'] = 0;
$bad_head = $head_builder->build_nshead($head);
$ret_arr = array('good' => $head_data, 'bad' => $bad_head, 'no_magic' => $no_magic_num);
return $ret_arr;
}
/**
* 发送一条nshead封装的消息
* @return true on success or false on failure
*/
public function send($buffer, $buffer_size)
{
if (null == $this->_socket) {
BigpipeLog::warning('[send error][lose connection][target:%s:%u]', $this->_target['socket_address'], $this->_target['socket_port']);
return false;
// 无连接
}
// build nshead package
if (0 == $buffer_size) {
BigpipeLog::warning('[send error][empty buffer]');
return false;
}
$req_head = new NsHead();
$req_arr = array('body_len' => $buffer_size);
if (true === $this->_check_frame) {
// 整包校验写在nshead的reserved字段中
$req_arr['magic_num'] = BigpipeCommonDefine::NSHEAD_CHECKSUM_MAGICNUM;
$req_arr['reserved'] = BigpipeUtilities::adler32($buffer);
}
$data = $req_head->build_nshead($req_arr) . $buffer;
BigpipeLog::debug("[send data][%s]", $data);
if (!$this->_socket->write($data)) {
BigpipeLog::warning('[fail to send data][may be network error]');
return false;
}
return true;
}
