Question

I have one tcp client that need read data via tcp
but i need read one tcp packet data at each time.

I usethis code:

        socket_[socket_index]->async_receive(
            boost::asio::buffer(buf, max_size),
            boost::bind(
              &pipe::handle_read, shared_from_this(),
              boost::asio::placeholders::error,
              socket_index,
              boost::asio::placeholders::bytes_transferred));

but sometime I read more than one packet.how I need change it to read only one packet data?

Answer 1

You just can’t. You have your networking concepts confused, TCP is higher-level than that.

Use UDP if you really need to manipulate individual packets. For your minimal case, it’s easy to switch.