Question

I am using boost::asio to make a socket network. The library has a number of different methods for sending and receiving data, each of which perform a similar task with a slight difference.

For sending data, boost provides the following functions:

boost::asio::basic_stream_socket::async_send()

boost::asio::basic_stream_socket::async_write_some()

boost::asio::basic_stream_socket::async_write()

And for receiving data, boost provides these functions:

boost::asio::basic_stream_socket::async_receive()

boost::asio::basic_stream_socket::async_read_some()

boost::asio::basic_stream_socket::async_read()

Out of these, which one(s) are the most appropriate to use for a game server, and why?

Answer 1

The async_read() and async_write() free functions are composed operations. They are implemented in terms of zero or more calls to the stream’s async_read_some() or async_write_some() methods.

The member functions may not transmit or receive all data before the asynchronous operation completes. You should use the free functions if you desire that behavior.