使用Asio :: read读取单字节

Question

Is it possible to read a single byte via asio::read?

I'm getting a single byte response and it seems wasteful to use the current buffering code:

        //Read the 1 byte reply
        char buffer[1];
        size_t bytesRead = asio::read(s, asio::buffer(buffer, 1));
        if(bytesRead < 1) return false;

Thanks.

Answer 1

No, passing a buffer of a single byte is the only way.

Also it isn't wasteful. What is it that you're concerned about wasting?

Answer 2

boost::asio is implemented on top of Windows' overlapped I/O TCP Winsock implementation. There's no way around buffers, etc. in such an implementation.