| src/examples/cpp03/echo/blocking_udp_echo_client.cpp | src/examples/cpp11/echo/blocking_udp_echo_client.cpp |
|---|
| ⋮ | ⋮ |
| 1 | // | 1 | // |
| 2 | //·blocking_udp_echo_client.cpp | 2 | //·blocking_udp_echo_client.cpp |
| 3 | //·~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | 3 | //·~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 4 | // | 4 | // |
| 5 | //·Copyright·(c)·2003-2021·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) | 5 | //·Copyright·(c)·2003-2021·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·<cstring> | 12 | #include·<cstring> |
| 13 | #include·<iostream> | 13 | #include·<iostream> |
| 14 | #include·"asio.hpp" | 14 | #include·"asio.hpp" |
| 15 | | 15 | |
| 16 | using·asio::ip::udp; | 16 | using·asio::ip::udp; |
| 17 | | 17 | |
| 18 | enum·{·max_length·=·1024·}; | 18 | enum·{·max_length·=·1024·}; |
| 19 | | 19 | |
| 20 | int·main(int·argc,·char*·argv[]) | 20 | int·main(int·argc,·char*·argv[]) |
| 21 | { | 21 | { |
| 22 | ··try | 22 | ··try |
| 23 | ··{ | 23 | ··{ |
| 24 | ····if·(argc·!=·3) | 24 | ····if·(argc·!=·3) |
| 25 | ····{ | 25 | ····{ |
| 26 | ······std::cerr·<<·"Usage:·blocking_udp_echo_client·<host>·<port>\n"; | 26 | ······std::cerr·<<·"Usage:·blocking_udp_echo_client·<host>·<port>\n"; |
| 27 | ······return·1; | 27 | ······return·1; |
| 28 | ····} | 28 | ····} |
| 29 | | 29 | |
| 30 | ····asio::io_context·io_context; | 30 | ····asio::io_context·io_context; |
| 31 | | 31 | |
| 32 | ····udp::socket·s(io_context,·udp::endpoint(udp::v4(),·0)); | 32 | ····udp::socket·s(io_context,·udp::endpoint(udp::v4(),·0)); |
| 33 | | 33 | |
| 34 | ····udp::resolver·resolver(io_context); | 34 | ····udp::resolver·resolver(io_context); |
| 35 | ····udp::resolver::results_type·endpoints·= | 35 | ····udp::resolver::results_type·endpoints·= |
| 36 | ······resolver.resolve(udp::v4(),·argv[1],·argv[2]); | 36 | ······resolver.resolve(udp::v4(),·argv[1],·argv[2]); |
| 37 | | 37 | |
| 38 | ····using·namespace·std;·//·For·strlen. | |
| 39 | ····std::cout·<<·"Enter·message:·"; | 38 | ····std::cout·<<·"Enter·message:·"; |
| 40 | ····char·request[max_length]; | 39 | ····char·request[max_length]; |
| 41 | ····std::cin.getline(request,·max_length); | 40 | ····std::cin.getline(request,·max_length); |
| 42 | ····size_t·request_length·=·strlen(request); | 41 | ····size_t·request_length·=·std::strlen(request); |
| 43 | ····s.send_to(asio::buffer(request,·request_length),·*endpoints.begin()); | 42 | ····s.send_to(asio::buffer(request,·request_length),·*endpoints.begin()); |
| 44 | | 43 | |
| 45 | ····char·reply[max_length]; | 44 | ····char·reply[max_length]; |
| 46 | ····udp::endpoint·sender_endpoint; | 45 | ····udp::endpoint·sender_endpoint; |
| 47 | ····size_t·reply_length·=·s.receive_from( | 46 | ····size_t·reply_length·=·s.receive_from( |
| 48 | ········asio::buffer(reply,·max_length),·sender_endpoint); | 47 | ········asio::buffer(reply,·max_length),·sender_endpoint); |
| 49 | ····std::cout·<<·"Reply·is:·"; | 48 | ····std::cout·<<·"Reply·is:·"; |
| 50 | ····std::cout.write(reply,·reply_length); | 49 | ····std::cout.write(reply,·reply_length); |
| 51 | ····std::cout·<<·"\n"; | 50 | ····std::cout·<<·"\n"; |
| 52 | ··} | 51 | ··} |
| 53 | ··catch·(std::exception&·e) | 52 | ··catch·(std::exception&·e) |
| 54 | ··{ | 53 | ··{ |
| 55 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; | 54 | ····std::cerr·<<·"Exception:·"·<<·e.what()·<<·"\n"; |
| 56 | ··} | 55 | ··} |
| 57 | | 56 | |
| 58 | ··return·0; | 57 | ··return·0; |
| 59 | } | 58 | } |