C++ acceptor::close方法代码示例

 static void CloseConnection(tcp::acceptor &_acceptor, tcp::socket &_socket) {
   log_info(LOG_PREFIX, "disconnecting");
   if (_acceptor.is_open()) {
     _acceptor.close();
   }
   if (_socket.is_open()) {
     _socket.close();
   }
 }

/*****************************************************************************
*   fiber function per client
*****************************************************************************/
void client( boost::asio::io_service & io_svc, tcp::acceptor & a,
             boost::fibers::barrier& barrier, unsigned iterations) {
    print( tag(), ": echo-client started");
    for (unsigned count = 0; count < iterations; ++count) {
        tcp::resolver resolver( io_svc);
        tcp::resolver::query query( tcp::v4(), "127.0.0.1", "9999");
        tcp::resolver::iterator iterator = resolver.resolve( query);
        tcp::socket s( io_svc);
        boost::asio::connect( s, iterator);
        for (unsigned msg = 0; msg < 1; ++msg) {
            std::ostringstream msgbuf;
            msgbuf << "from " << fiber_names.lookup() << " " << count << "." << msg;
            std::string message(msgbuf.str());
            print( tag(), ": Sending: ", message);
            boost::system::error_code ec;
            boost::asio::async_write(
                    s,
                    boost::asio::buffer( message),
                    boost::fibers::asio::yield[ec]);
            if ( ec == boost::asio::error::eof) {
                return; //connection closed cleanly by peer
            } else if ( ec) {
                throw boost::system::system_error( ec); //some other error
            }
            char reply[max_length];
            size_t reply_length = s.async_read_some(
                    boost::asio::buffer( reply, max_length),
                    boost::fibers::asio::yield[ec]);
            if ( ec == boost::asio::error::eof) {
                return; //connection closed cleanly by peer
            } else if ( ec) {
                throw boost::system::system_error( ec); //some other error
            }
            print( tag(), ": Reply  : ", std::string( reply, reply_length));
        }
    }
    // done with all iterations, wait for rest of client fibers
    if ( barrier.wait()) {
        // exactly one barrier.wait() call returns true
        // we're the lucky one
        a.close();
        print( tag(), ": acceptor stopped");
    }
    print( tag(), ": echo-client stopped");
}

    void run(unsigned sleepMillis)
    {
		std::cout << "in GUIMessageSenderThread: run "
                  << sleepMillis << "ms"
                  << std::endl;

		while (running_) {
			if (!connected_) {
				std::cout << "In GUIMessageSenderThread trying to connect to: " << host_ << " " << port_ << std::endl;
				//tcp::endpoint endpoint_(boost::asio::ip::address::from_string(host_), port_);
				//tcp::endpoint endpoint_(boost::asio::ip::address::from_string(host_), port_);
				endpoint_.address(boost::asio::ip::address::from_string(host_));
				endpoint_.port(port_);
				tcp::acceptor acceptor(*io_service_, endpoint_);

				getClientConnection(acceptor);
				try {
				
					sendMessages(sleepMillis);

					acceptor.close();
					stream_.clear();
					stream_.close();
				}
				catch (std::exception& e)
				{
					std::cerr << "GUIMessageSenderThread Error in connection: " << e.what() << std::endl;
				}
				connected_ = false;
				//boost::asio::deadline_timer timer(*io_service_,boost::posix_time::milliseconds(1000));
				//timer.expires_from_now(boost::posix_time::milliseconds(1000));
				//timer.wait();
			}
		}
		std::cout << "done GUIMessageSenderThread: run "
                  << sleepMillis << "ms"
                  << std::endl;
	}

	~peer_server()
	{
		m_acceptor.cancel();
		m_acceptor.close();
		if (m_thread) m_thread->join();
	}

	~CServer()
	{
		DEBUG_MSG("Listener Destroyed");
		acceptor_.close();
	}