...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Place the acceptor into the state where it will listen for new connections.
boost::system::error_code listen( int backlog, boost::system::error_code & ec);
This function puts the socket acceptor into the state where it may accept new connections.
The maximum length of the queue of pending connections.
Set to indicate what error occurred, if any.
boost::asio::ip::tcp::acceptor acceptor(io_service); ... boost::system::error_code ec; acceptor.listen(boost::asio::socket_base::max_connections, ec); if (ec) { // An error occurred. }