void HeartbeatRoutine(object a_worker)
{
Worker worker = (Worker)a_worker;
ProtocolType protocol = worker.m_socket.ProtocolType;
IPEndPoint dest;
if (protocol == ProtocolType.Udp) {
dest = m_subServerAddr_udp;
worker.m_poller.Start(worker.m_socket);
}
else {
Debug.Assert(protocol == ProtocolType.Tcp);
dest = m_subServerAddr_tcp;
}
Heartbeat heartbeat = new Heartbeat(GetName(worker.m_socket));
Message ping = new Message();
int pingPongCtx = 0;
ping.m_contextSeq = 1;
ping.m_contextID = pingPongCtx;
string errComment = "";
while (m_run) {
heartbeat.WaitForInterval(errComment);
ping.m_pingTime = System.Environment.TickCount;
bool succeedPing = false;
switch (protocol) {
case ProtocolType.Tcp:
if (worker.m_poller.IsRegstered(worker.m_socket))
succeedPing = worker.m_poller.Send(worker.m_socket, ping, true);
else {
if (ping.m_contextSeq > 1) {
ping.m_contextSeq = 1;
worker.m_socket.Close();
worker.m_socket = Function.CreateSocket(ProtocolType.Tcp,
null,
false);
}
succeedPing = worker.m_poller.ConnectAndSend(worker.m_socket, dest, ping);
}
break;
case ProtocolType.Udp:
succeedPing = worker.m_poller.SendTo(worker.m_socket, dest, ping, true);
break;
default:
Debug.Assert(false);
break;
}
if (succeedPing == false) {
errComment = "failed request.";
heartbeat.Timeout();
continue;
}
Message pong;
Socket sock;
IPEndPoint sender;
bool isTimeout = ! worker.m_poller.WaitForMessage(Config.Response_Timeout_Ms,
out pong,
out sock,
out sender);
if (isTimeout) {
errComment = "response timeout.";
heartbeat.Timeout();
continue;
}
if (pong.m_contextID != pingPongCtx) {
heartbeat.Timeout();
errComment = "wrong message.";
Config.OnErrorDelegate("잘못된 메시지를 수신 : " + pong.ToString());
continue;
}
heartbeat.Reset();
if (ping.AddressIsEmpty()) {
ping.m_address = pong.m_address;
ping.m_port = pong.m_port;
}
++ping.m_contextSeq;
}
}