~asio_connection()
{
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT >= 0x0600)
socket_.cancel();
#endif
//socket_.shutdown(socket_base::shutdown_both);
socket_.close();
}
virtual void close() {
if (!closed) closed = 1;
if (clientSocket->is_open()) {
clientSocket->cancel();
clientSocket->close();
}
if (serverSocket.is_open()) {
serverSocket.cancel();
serverSocket.close();
}
}