| src/examples/cpp03/echo/blocking_udp_echo_server.cpp | src/examples/cpp11/echo/blocking_udp_echo_server.cpp |
|---|
| ⋮ | ⋮ |
| 1 | // | 1 | // |
| 2 | //·blocking_udp_echo_server.cpp | 2 | //·blocking_udp_echo_server.cpp |
| 3 | //·~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | 3 | //·~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 4 | // | 4 | // |
| 5 | //·Copyright·(c)·2003-2020·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) | 5 | //·Copyright·(c)·2003-2020·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·<cstdlib> | 11 | #include·<cstdlib> |
| 12 | #include·<iostream> | 12 | #include·<iostream> |
| 13 | #include·"asio.hpp" | 13 | #include·"asio.hpp" |
| 14 | | 14 | |
| 15 | using·asio::ip::udp; | 15 | using·asio::ip::udp; |
| 16 | | 16 | |
| 17 | enum·{·max_length·=·1024·}; | 17 | enum·{·max_length·=·1024·}; |
| 18 | | 18 | |
| 19 | void·server(asio::io_context&·io_context,·unsigned·short·port) | 19 | void·server(asio::io_context&·io_context,·unsigned·short·port) |
| 20 | { | 20 | { |
| 21 | ··udp::socket·sock(io_context,·udp::endpoint(udp::v4(),·port)); | 21 | ··udp::socket·sock(io_context,·udp::endpoint(udp::v4(),·port)); |
| 22 | ··for·(;;) | 22 | ··for·(;;) |
| 23 | ··{ | 23 | ··{ |
| 24 | ····char·data[max_length]; | 24 | ····char·data[max_length]; |
| 25 | ····udp::endpoint·sender_endpoint; | 25 | ····udp::endpoint·sender_endpoint; |
| 26 | ····size_t·length·=·sock.receive_from( | 26 | ····size_t·length·=·sock.receive_from( |
| 27 | ········asio::buffer(data,·max_length),·sender_endpoint); | 27 | ········asio::buffer(data,·max_length),·sender_endpoint); |
| 28 | ····sock.send_to(asio::buffer(data,·length),·sender_endpoint); | 28 | ····sock.send_to(asio::buffer(data,·length),·sender_endpoint); |
| 29 | ··} | 29 | ··} |
| 30 | } | 30 | } |
| 31 | | 31 | |
| 32 | int·main(int·argc,·char*·argv[]) | 32 | int·main(int·argc,·char*·argv[]) |
| 33 | { | 33 | { |
| 34 | ··try | 34 | ··try |
| 35 | ··{ | 35 | ··{ |
| 36 | ····if·(argc·!=·2) | 36 | ····if·(argc·!=·2) |
| 37 | ····{ | 37 | ····{ |
| 38 | ······std::cerr·<<·"Usage:·blocking_udp_echo_server·<port>\n"; | 38 | ······std::cerr·<<·"Usage:·blocking_udp_echo_server·<port>\n"; |
| 39 | ······return·1; | 39 | ······return·1; |
| 40 | ····} | 40 | ····} |
| 41 | | 41 | |
| 42 | ····asio::io_context·io_context; | 42 | ····asio::io_context·io_context; |
| 43 | | 43 | |
| 44 | ····using·namespace·std;·//·For·atoi. | 44 | ····server(io_context,·std::atoi(argv[1])); |
| 45 | ····server(io_context,·atoi(argv[1])); | |
| 46 | ··} | 45 | ··} |
| 47 | ··catch·(std::exception&·e) | 46 | ··catch·(std::exception&·e) |
| 48 | ··{ | 47 | ··{ |
| 49 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; | 48 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; |
| 50 | ··} | 49 | ··} |
| 51 | | 50 | |
| 52 | ··return·0; | 51 | ··return·0; |
| 53 | } | 52 | } |