불안정하게 멀티 됨.. 일단은 두번째 플레이어가 첫번째 플레이어한테 보이기는 하니까...

impl/socket/iocp.cpp

@@ -255,6 +255,8 @@ void IOCP::iocpWatcher_(utils::ThreadPool* IOCPThread) {
     ::WSARecv(recv_data->socket->sock, &recv_data->wsabuf, 1, &recvbytes,
               &flags, &recv_data->overlapped, NULL);
   } else {  // WRITE 시, 무시한다.
+    spdlog::debug("writed {} bytes to {}", cbTransfrred,
+                  (std::string)(data->socket->remoteAddr));
     delete data;
   }
   IOCPThread->enqueueJob(

impl/socket/socket.cpp

@@ -28,6 +28,7 @@ void Socket::destruct() {
   ::close(sock);
 #endif
   valid_ = false;
+  sock = 0;
 }
 
 Socket::operator SOCKET() {