| // |
| // stream_server.cpp |
| // ~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| // |
| |
| #include <cstdio> |
| #include <iostream> |
| #include <boost/array.hpp> |
| #include <boost/bind.hpp> |
| #include <boost/enable_shared_from_this.hpp> |
| #include <boost/shared_ptr.hpp> |
| #include <boost/asio.hpp> |
| |
| #if defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) |
| |
| using boost::asio::local::stream_protocol; |
| |
| class session |
| : public boost::enable_shared_from_this<session> |
| { |
| public: |
| session(boost::asio::io_service& io_service) |
| : socket_(io_service) |
| { |
| } |
| |
| stream_protocol::socket& socket() |
| { |
| return socket_; |
| } |
| |
| void start() |
| { |
| socket_.async_read_some(boost::asio::buffer(data_), |
| boost::bind(&session::handle_read, |
| shared_from_this(), |
| boost::asio::placeholders::error, |
| boost::asio::placeholders::bytes_transferred)); |
| } |
| |
| void handle_read(const boost::system::error_code& error, |
| size_t bytes_transferred) |
| { |
| if (!error) |
| { |
| boost::asio::async_write(socket_, |
| boost::asio::buffer(data_, bytes_transferred), |
| boost::bind(&session::handle_write, |
| shared_from_this(), |
| boost::asio::placeholders::error)); |
| } |
| } |
| |
| void handle_write(const boost::system::error_code& error) |
| { |
| if (!error) |
| { |
| socket_.async_read_some(boost::asio::buffer(data_), |
| boost::bind(&session::handle_read, |
| shared_from_this(), |
| boost::asio::placeholders::error, |
| boost::asio::placeholders::bytes_transferred)); |
| } |
| } |
| |
| private: |
| // The socket used to communicate with the client. |
| stream_protocol::socket socket_; |
| |
| // Buffer used to store data received from the client. |
| boost::array<char, 1024> data_; |
| }; |
| |
| typedef boost::shared_ptr<session> session_ptr; |
| |
| class server |
| { |
| public: |
| server(boost::asio::io_service& io_service, const std::string& file) |
| : io_service_(io_service), |
| acceptor_(io_service, stream_protocol::endpoint(file)) |
| { |
| session_ptr new_session(new session(io_service_)); |
| acceptor_.async_accept(new_session->socket(), |
| boost::bind(&server::handle_accept, this, new_session, |
| boost::asio::placeholders::error)); |
| } |
| |
| void handle_accept(session_ptr new_session, |
| const boost::system::error_code& error) |
| { |
| if (!error) |
| { |
| new_session->start(); |
| new_session.reset(new session(io_service_)); |
| acceptor_.async_accept(new_session->socket(), |
| boost::bind(&server::handle_accept, this, new_session, |
| boost::asio::placeholders::error)); |
| } |
| } |
| |
| private: |
| boost::asio::io_service& io_service_; |
| stream_protocol::acceptor acceptor_; |
| }; |
| |
| int main(int argc, char* argv[]) |
| { |
| try |
| { |
| if (argc != 2) |
| { |
| std::cerr << "Usage: stream_server <file>\n"; |
| std::cerr << "*** WARNING: existing file is removed ***\n"; |
| return 1; |
| } |
| |
| boost::asio::io_service io_service; |
| |
| std::remove(argv[1]); |
| server s(io_service, argv[1]); |
| |
| io_service.run(); |
| } |
| catch (std::exception& e) |
| { |
| std::cerr << "Exception: " << e.what() << "\n"; |
| } |
| |
| return 0; |
| } |
| |
| #else // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) |
| # error Local sockets not available on this platform. |
| #endif // defined(BOOST_ASIO_HAS_LOCAL_SOCKETS) |