| src/examples/cpp03/spawn/echo_server.cpp | src/examples/cpp11/spawn/echo_server.cpp |
| ⋮ | ⋮ |
| 1 | // | 1 | // |
| 2 | //·echo_server.cpp | 2 | //·echo_server.cpp |
| 3 | //·~~~~~~~~~~~~~~~ | 3 | //·~~~~~~~~~~~~~~~ |
| 4 | // | 4 | // |
| 5 | //·Copyright·(c)·2003-2013·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) | 5 | //·Copyright·(c)·2003-2013·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) |
| 6 | // | 6 | // |
| 7 | //·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying | 7 | //·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying |
| 8 | //·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt) | 8 | //·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt) |
| 9 | // | 9 | // |
| 10 | | 10 | |
| 11 | #include·<asio/deadline_timer.hpp> | |
| 12 | #include·<asio/io_service.hpp> | 11 | #include·<asio/io_service.hpp> |
| 13 | #include·<asio/ip/tcp.hpp> | 12 | #include·<asio/ip/tcp.hpp> |
| 14 | #include·<asio/spawn.hpp> | 13 | #include·<asio/spawn.hpp> |
| | 14 | #include·<asio/steady_timer.hpp> |
| 15 | #include·<asio/write.hpp> | 15 | #include·<asio/write.hpp> |
| 16 | #include·<boost/bind.hpp> | |
| 17 | #include·<boost/shared_ptr.hpp> | |
| 18 | #include·<boost/enable_shared_from_this.hpp> | |
| 19 | #include·<iostream> | 16 | #include·<iostream> |
| | 17 | #include·<memory> |
| 20 | | 18 | |
| 21 | using·asio::ip::tcp; | 19 | using·asio::ip::tcp; |
| 22 | | 20 | |
| 23 | class·session·:·public·boost::enable_shared_from_this<session> | 21 | class·session·:·public·std::enable_shared_from_this<session> |
| 24 | { | 22 | { |
| 25 | public: | 23 | public: |
| 26 | ··explicit·session(asio::io_service&·io_service) | 24 | ··explicit·session(tcp::socket·socket) |
| 27 | ····:·strand_(io_service), | 25 | ····:·socket_(std::move(socket)), |
| 28 | ······socket_(io_service), | 26 | ······timer_(socket_.get_io_service()), |
| 29 | ······timer_(io_service) | 27 | ······strand_(socket_.get_io_service()) |
| 30 | ··{ | 28 | ··{ |
| 31 | ··} | 29 | ··} |
| 32 | | 30 | |
| 33 | ··tcp::socket&·socket() | |
| 34 | ··{ | |
| 35 | ····return·socket_; | |
| 36 | ··} | |
| 37 | | |
| 38 | ··void·go() | 31 | ··void·go() |
| 39 | ··{ | 32 | ··{ |
| | 33 | ····auto·self(shared_from_this()); |
| 40 | ····asio::spawn(strand_, | 34 | ····asio::spawn(strand_, |
| 41 | ········boost::bind(&session::echo, | 35 | ········[this,·self](asio::yield_context·yield) |
| 42 | ··········shared_from_this(),·_1)); | 36 | ········{ |
| | 37 | ··········try |
| | 38 | ··········{ |
| | 39 | ············char·data[128]; |
| | 40 | ············for·(;;) |
| | 41 | ············{ |
| | 42 | ··············timer_.expires_from_now(std::chrono::seconds(10)); |
| | 43 | ··············std::size_t·n·=·socket_.async_read_some(asio::buffer(data),·yield); |
| | 44 | ··············asio::async_write(socket_,·asio::buffer(data,·n),·yield); |
| | 45 | ············} |
| | 46 | ··········} |
| | 47 | ··········catch·(std::exception&·e) |
| | 48 | ··········{ |
| | 49 | ············socket_.close(); |
| | 50 | ············timer_.cancel(); |
| | 51 | ··········} |
| | 52 | ········}); |
| | 53 | |
| 43 | ····asio::spawn(strand_, | 54 | ····asio::spawn(strand_, |
| 44 | ········boost::bind(&session::timeout, | 55 | ········[this,·self](asio::yield_context·yield) |
| 45 | ··········shared_from_this(),·_1)); | 56 | ········{ |
| | 57 | ··········while·(socket_.is_open()) |
| | 58 | ··········{ |
| | 59 | ············asio::error_code·ignored_ec; |
| | 60 | ············timer_.async_wait(yield[ignored_ec]); |
| | 61 | ············if·(timer_.expires_from_now()·<=·std::chrono::seconds(0)) |
| | 62 | ··············socket_.close(); |
| | 63 | ··········} |
| | 64 | ········}); |
| 46 | ··} | 65 | ··} |
| 47 | | 66 | |
| 48 | private: | 67 | private: |
| 49 | ··void·echo(asio::yield_context·yield) | |
| 50 | ··{ | |
| 51 | ····try | |
| 52 | ····{ | |
| 53 | ······char·data[128]; | |
| 54 | ······for·(;;) | |
| 55 | ······{ | |
| 56 | ········timer_.expires_from_now(boost::posix_time::seconds(10)); | |
| 57 | ········std::size_t·n·=·socket_.async_read_some(asio::buffer(data),·yield); | |
| 58 | ········asio::async_write(socket_,·asio::buffer(data,·n),·yield); | |
| 59 | ······} | |
| 60 | ····} | |
| 61 | ····catch·(std::exception&·e) | |
| 62 | ····{ | |
| 63 | ······socket_.close(); | |
| 64 | ······timer_.cancel(); | |
| 65 | ····} | |
| 66 | ··} | |
| 67 | | |
| 68 | ··void·timeout(asio::yield_context·yield) | |
| 69 | ··{ | |
| 70 | ····while·(socket_.is_open()) | |
| 71 | ····{ | |
| 72 | ······asio::error_code·ignored_ec; | |
| 73 | ······timer_.async_wait(yield[ignored_ec]); | |
| 74 | ······if·(timer_.expires_from_now()·<=·boost::posix_time::seconds(0)) | |
| 75 | ········socket_.close(); | |
| 76 | ····} | |
| 77 | ··} | |
| 78 | | |
| 79 | ··asio::io_service::strand·strand_; | |
| 80 | ··tcp::socket·socket_; | 68 | ··tcp::socket·socket_; |
| 81 | ··asio::deadline_timer·timer_; | 69 | ··asio::steady_timer·timer_; |
| | 70 | ··asio::io_service::strand·strand_; |
| 82 | }; | 71 | }; |
| 83 | | 72 | |
| 84 | void·do_accept(asio::io_service&·io_service, | |
| 85 | ····unsigned·short·port,·asio::yield_context·yield) | |
| 86 | { | |
| 87 | ··tcp::acceptor·acceptor(io_service,·tcp::endpoint(tcp::v4(),·port)); | |
| 88 | | |
| 89 | ··for·(;;) | |
| 90 | ··{ | |
| 91 | ····asio::error_code·ec; | |
| 92 | ····boost::shared_ptr<session>·new_session(new·session(io_service)); | |
| 93 | ····acceptor.async_accept(new_session->socket(),·yield[ec]); | |
| 94 | ····if·(!ec)·new_session->go(); | |
| 95 | ··} | |
| 96 | } | |
| 97 | | |
| 98 | int·main(int·argc,·char*·argv[]) | 73 | int·main(int·argc,·char*·argv[]) |
| 99 | { | 74 | { |
| 100 | ··try | 75 | ··try |
| 101 | ··{ | 76 | ··{ |
| 102 | ····if·(argc·!=·2) | 77 | ····if·(argc·!=·2) |
| 103 | ····{ | 78 | ····{ |
| 104 | ······std::cerr·<<·"Usage:·echo_server·<port>\n"; | 79 | ······std::cerr·<<·"Usage:·echo_server·<port>\n"; |
| 105 | ······return·1; | 80 | ······return·1; |
| 106 | ····} | 81 | ····} |
| 107 | | 82 | |
| 108 | ····asio::io_service·io_service; | 83 | ····asio::io_service·io_service; |
| 109 | | 84 | |
| 110 | ····asio::spawn(io_service, | 85 | ····asio::spawn(io_service, |
| 111 | ········boost::bind(do_accept, | 86 | ········[&](asio::yield_context·yield) |
| 112 | ··········boost::ref(io_service),·atoi(argv[1]),·_1)); | 87 | ········{ |
| | 88 | ··········tcp::acceptor·acceptor(io_service, |
| | 89 | ············tcp::endpoint(tcp::v4(),·std::atoi(argv[1]))); |
| | 90 | |
| | 91 | ··········for·(;;) |
| | 92 | ··········{ |
| | 93 | ············asio::error_code·ec; |
| | 94 | ············tcp::socket·socket(io_service); |
| | 95 | ············acceptor.async_accept(socket,·yield[ec]); |
| | 96 | ············if·(!ec)·std::make_shared<session>(std::move(socket))->go(); |
| | 97 | ··········} |
| | 98 | ········}); |
| 113 | | 99 | |
| 114 | ····io_service.run(); | 100 | ····io_service.run(); |
| 115 | ··} | 101 | ··} |
| 116 | ··catch·(std::exception&·e) | 102 | ··catch·(std::exception&·e) |
| 117 | ··{ | 103 | ··{ |
| 118 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; | 104 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; |
| 119 | ··} | 105 | ··} |
| 120 | | 106 | |
| 121 | ··return·0; | 107 | ··return·0; |
| 122 | } | 108 | } |