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author | Chanho Park <chanho61.park@samsung.com> | 2014-12-11 18:55:56 +0900 |
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committer | Chanho Park <chanho61.park@samsung.com> | 2014-12-11 18:55:56 +0900 |
commit | 08c1e93fa36a49f49325a07fe91ff92c964c2b6c (patch) | |
tree | 7a7053ceb8874b28ec4b868d4c49b500008a102e /doc/html/boost_asio/example/cpp11/echo/async_udp_echo_server.cpp | |
parent | bb4dd8289b351fae6b55e303f189127a394a1edd (diff) | |
download | boost-08c1e93fa36a49f49325a07fe91ff92c964c2b6c.tar.gz boost-08c1e93fa36a49f49325a07fe91ff92c964c2b6c.tar.bz2 boost-08c1e93fa36a49f49325a07fe91ff92c964c2b6c.zip |
Imported Upstream version 1.57.0upstream/1.57.0
Diffstat (limited to 'doc/html/boost_asio/example/cpp11/echo/async_udp_echo_server.cpp')
-rw-r--r-- | doc/html/boost_asio/example/cpp11/echo/async_udp_echo_server.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/doc/html/boost_asio/example/cpp11/echo/async_udp_echo_server.cpp b/doc/html/boost_asio/example/cpp11/echo/async_udp_echo_server.cpp new file mode 100644 index 0000000000..4dc04e45e1 --- /dev/null +++ b/doc/html/boost_asio/example/cpp11/echo/async_udp_echo_server.cpp @@ -0,0 +1,82 @@ +// +// async_udp_echo_server.cpp +// ~~~~~~~~~~~~~~~~~~~~~~~~~ +// +// Copyright (c) 2003-2014 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 <cstdlib> +#include <iostream> +#include <boost/asio.hpp> + +using boost::asio::ip::udp; + +class server +{ +public: + server(boost::asio::io_service& io_service, short port) + : socket_(io_service, udp::endpoint(udp::v4(), port)) + { + do_receive(); + } + + void do_receive() + { + socket_.async_receive_from( + boost::asio::buffer(data_, max_length), sender_endpoint_, + [this](boost::system::error_code ec, std::size_t bytes_recvd) + { + if (!ec && bytes_recvd > 0) + { + do_send(bytes_recvd); + } + else + { + do_receive(); + } + }); + } + + void do_send(std::size_t length) + { + socket_.async_send_to( + boost::asio::buffer(data_, length), sender_endpoint_, + [this](boost::system::error_code /*ec*/, std::size_t /*bytes_sent*/) + { + do_receive(); + }); + } + +private: + udp::socket socket_; + udp::endpoint sender_endpoint_; + enum { max_length = 1024 }; + char data_[max_length]; +}; + +int main(int argc, char* argv[]) +{ + try + { + if (argc != 2) + { + std::cerr << "Usage: async_udp_echo_server <port>\n"; + return 1; + } + + boost::asio::io_service io_service; + + server s(io_service, std::atoi(argv[1])); + + io_service.run(); + } + catch (std::exception& e) + { + std::cerr << "Exception: " << e.what() << "\n"; + } + + return 0; +} |