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-rw-r--r--3rdparty/asio/src/examples/cpp03/echo/blocking_udp_echo_server.cpp53
1 files changed, 53 insertions, 0 deletions
diff --git a/3rdparty/asio/src/examples/cpp03/echo/blocking_udp_echo_server.cpp b/3rdparty/asio/src/examples/cpp03/echo/blocking_udp_echo_server.cpp
new file mode 100644
index 00000000000..42498a15e9a
--- /dev/null
+++ b/3rdparty/asio/src/examples/cpp03/echo/blocking_udp_echo_server.cpp
@@ -0,0 +1,53 @@
+//
+// blocking_udp_echo_server.cpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2021 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 "asio.hpp"
+
+using asio::ip::udp;
+
+enum { max_length = 1024 };
+
+void server(asio::io_context& io_context, unsigned short port)
+{
+ udp::socket sock(io_context, udp::endpoint(udp::v4(), port));
+ for (;;)
+ {
+ char data[max_length];
+ udp::endpoint sender_endpoint;
+ size_t length = sock.receive_from(
+ asio::buffer(data, max_length), sender_endpoint);
+ sock.send_to(asio::buffer(data, length), sender_endpoint);
+ }
+}
+
+int main(int argc, char* argv[])
+{
+ try
+ {
+ if (argc != 2)
+ {
+ std::cerr << "Usage: blocking_udp_echo_server <port>\n";
+ return 1;
+ }
+
+ asio::io_context io_context;
+
+ using namespace std; // For atoi.
+ server(io_context, atoi(argv[1]));
+ }
+ catch (std::exception& e)
+ {
+ std::cerr << "Exception: " << e.what() << "\n";
+ }
+
+ return 0;
+}