Receive some data on the socket.
template< typename MutableBufferSequence> std::size_t receive( const MutableBufferSequence & buffers); template< typename MutableBufferSequence> std::size_t receive( const MutableBufferSequence & buffers, socket_base::message_flags flags); template< typename MutableBufferSequence> std::size_t receive( const MutableBufferSequence & buffers, socket_base::message_flags flags, asio::error_code & ec);