/**
* 获取在线状态，目前返回一个在线client_id数组
* @return array
*/
public static function getOnlineStatus()
{
$gateway_data = GatewayProtocol::$empty;
$gateway_data['cmd'] = GatewayProtocol::CMD_GET_ONLINE_STATUS;
$gateway_buffer = GatewayProtocol::encode($gateway_data);
if (isset(self::$businessWorker)) {
$all_addresses = self::$businessWorker->getAllGatewayAddresses();
if (empty($all_addresses)) {
throw new \Exception('businessWorker::getAllGatewayAddresses return empty');
}
} else {
$all_addresses = self::getAllGatewayAddressesFromRegister();
if (empty($all_addresses)) {
return array();
}
}
$client_array = $status_data = $client_address_map = array();
// 批量向所有gateway进程发送CMD_GET_ONLINE_STATUS命令
foreach ($all_addresses as $address) {
$client = stream_socket_client("udp://{$address}", $errno, $errmsg);
if (strlen($gateway_buffer) === stream_socket_sendto($client, $gateway_buffer)) {
$socket_id = (int) $client;
$client_array[$socket_id] = $client;
$client_address_map[$socket_id] = explode(':', $address);
}
}
// 超时1秒
$time_out = 1;
$time_start = microtime(true);
// 批量接收请求
while (count($client_array) > 0) {
$write = $except = array();
$read = $client_array;
if (@stream_select($read, $write, $except, $time_out)) {
foreach ($read as $client) {
$socket_id = (int) $client;
$local_ip = ip2long($client_address_map[$socket_id][0]);
$local_port = $client_address_map[$socket_id][1];
// udp
$data = json_decode(stream_socket_recvfrom($client, 65535), true);
if ($data) {
foreach ($data as $connection_id) {
$status_data[] = Context::addressToClientId($local_ip, $local_port, $connection_id);
}
}
unset($client_array[$socket_id]);
}
}
if (microtime(true) - $time_start > $time_out) {
break;
}
}
return $status_data;
}
/**
* 当gateway转发来数据时
* @param TcpConnection $connection
* @param mixed $data
*/
public function onGatewayMessage($connection, $data)
{
// 上下文数据
Context::$client_ip = $data['client_ip'];
Context::$client_port = $data['client_port'];
Context::$local_ip = $data['local_ip'];
Context::$local_port = $data['local_port'];
Context::$connection_id = $data['connection_id'];
Context::$client_id = Context::addressToClientId($data['local_ip'], $data['local_port'], $data['connection_id']);
// $_SERVER变量
$_SERVER = array('REMOTE_ADDR' => $data['client_ip'], 'REMOTE_PORT' => $data['client_port'], 'GATEWAY_ADDR' => $data['local_ip'], 'GATEWAY_PORT' => $data['gateway_port'], 'GATEWAY_CLIENT_ID' => Context::$client_id);
// 尝试解析session
if ($data['ext_data'] != '') {
$_SESSION = Context::sessionDecode($data['ext_data']);
} else {
$_SESSION = null;
}
// 备份一次$data['ext_data']，请求处理完毕后判断session是否和备份相等，不相等就更新session
$session_str_copy = $data['ext_data'];
$cmd = $data['cmd'];
// 尝试执行Event::onConnection、Event::onMessage、Event::onClose
try {
switch ($cmd) {
case GatewayProtocol::CMD_ON_CONNECTION:
Event::onConnect(Context::$client_id);
break;
case GatewayProtocol::CMD_ON_MESSAGE:
Event::onMessage(Context::$client_id, $data['body']);
break;
case GatewayProtocol::CMD_ON_CLOSE:
Event::onClose(Context::$client_id);
break;
}
} catch (\Exception $e) {
$msg = 'client_id:' . Context::$client_id . "\tclient_ip:" . Context::$client_ip . "\n" . $e->__toString();
$this->log($msg);
}
// 判断session是否被更改
$session_str_now = $_SESSION !== null ? Context::sessionEncode($_SESSION) : '';
if ($session_str_copy != $session_str_now) {
\GatewayWorker\Lib\Gateway::updateSocketSession(Context::$client_id, $session_str_now);
}
Context::clear();
}
/**
* 当gateway转发来数据时
* @param TcpConnection $connection
* @param mixed $data
*/
public function onGatewayMessage($connection, $data)
{
// 上下文数据
Context::$client_ip = $data['client_ip'];
Context::$client_port = $data['client_port'];
Context::$local_ip = $data['local_ip'];
Context::$local_port = $data['local_port'];
Context::$connection_id = $data['connection_id'];
Context::$client_id = Context::addressToClientId($data['local_ip'], $data['local_port'], $data['connection_id']);
// $_SERVER变量
$_SERVER = array('REMOTE_ADDR' => long2ip($data['client_ip']), 'REMOTE_PORT' => $data['client_port'], 'GATEWAY_ADDR' => long2ip($data['local_ip']), 'GATEWAY_PORT' => $data['gateway_port'], 'GATEWAY_CLIENT_ID' => Context::$client_id);
// 尝试解析session
if ($data['ext_data'] != '') {
$_SESSION = Context::sessionDecode($data['ext_data']);
} else {
$_SESSION = null;
}
// 备份一次$data['ext_data']，请求处理完毕后判断session是否和备份相等，不相等就更新session
$session_str_copy = $data['ext_data'];
$cmd = $data['cmd'];
if ($this->processTimeout) {
pcntl_alarm($this->processTimeout);
}
// 尝试执行Event::onConnection、Event::onMessage、Event::onClose
switch ($cmd) {
case GatewayProtocol::CMD_ON_CONNECTION:
if ($this->_eventOnConnect) {
call_user_func($this->_eventOnConnect, Context::$client_id);
}
break;
case GatewayProtocol::CMD_ON_MESSAGE:
if ($this->_eventOnMessage) {
call_user_func($this->_eventOnMessage, Context::$client_id, $data['body']);
}
break;
case GatewayProtocol::CMD_ON_CLOSE:
if ($this->_eventOnClose) {
call_user_func($this->_eventOnClose, Context::$client_id);
}
break;
}
if ($this->processTimeout) {
pcntl_alarm(0);
}
// 判断session是否被更改
$session_str_now = $_SESSION !== null ? Context::sessionEncode($_SESSION) : '';
if ($session_str_copy != $session_str_now) {
\GatewayWorker\Lib\Gateway::updateSocketSession(Context::$client_id, $session_str_now);
}
Context::clear();
}
/**
* 获取与uid绑定的client_id列表
* @param string $uid
* @return array
*/
public static function getClientIdByUid($uid)
{
$gateway_data = GatewayProtocol::$empty;
$gateway_data['cmd'] = GatewayProtocol::CMD_GET_CLIENT_ID_BY_UID;
$gateway_data['ext_data'] = $uid;
$client_list = array();
$all_buffer_array = self::getBufferFromAllGateway($gateway_data);
foreach ($all_buffer_array as $local_ip => $buffer_array) {
foreach ($buffer_array as $local_port => $buffer) {
$connection_id_array = json_decode(rtrim($buffer), true);
if ($connection_id_array) {
foreach ($connection_id_array as $connection_id) {
$client_list[] = Context::addressToClientId($local_ip, $local_port, $connection_id);
}
}
}
}
return $client_list;
}
