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Diffstat (limited to '3rdparty/asio/src/examples/cpp11/multicast/sender.cpp')
-rw-r--r--3rdparty/asio/src/examples/cpp11/multicast/sender.cpp91
1 files changed, 91 insertions, 0 deletions
diff --git a/3rdparty/asio/src/examples/cpp11/multicast/sender.cpp b/3rdparty/asio/src/examples/cpp11/multicast/sender.cpp
new file mode 100644
index 00000000000..cb70d46ccd4
--- /dev/null
+++ b/3rdparty/asio/src/examples/cpp11/multicast/sender.cpp
@@ -0,0 +1,91 @@
+//
+// sender.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 <iostream>
+#include <sstream>
+#include <string>
+#include "asio.hpp"
+
+constexpr short multicast_port = 30001;
+constexpr int max_message_count = 10;
+
+class sender
+{
+public:
+ sender(asio::io_context& io_context,
+ const asio::ip::address& multicast_address)
+ : endpoint_(multicast_address, multicast_port),
+ socket_(io_context, endpoint_.protocol()),
+ timer_(io_context),
+ message_count_(0)
+ {
+ do_send();
+ }
+
+private:
+ void do_send()
+ {
+ std::ostringstream os;
+ os << "Message " << message_count_++;
+ message_ = os.str();
+
+ socket_.async_send_to(
+ asio::buffer(message_), endpoint_,
+ [this](std::error_code ec, std::size_t /*length*/)
+ {
+ if (!ec && message_count_ < max_message_count)
+ do_timeout();
+ });
+ }
+
+ void do_timeout()
+ {
+ timer_.expires_after(std::chrono::seconds(1));
+ timer_.async_wait(
+ [this](std::error_code ec)
+ {
+ if (!ec)
+ do_send();
+ });
+ }
+
+private:
+ asio::ip::udp::endpoint endpoint_;
+ asio::ip::udp::socket socket_;
+ asio::steady_timer timer_;
+ int message_count_;
+ std::string message_;
+};
+
+int main(int argc, char* argv[])
+{
+ try
+ {
+ if (argc != 2)
+ {
+ std::cerr << "Usage: sender <multicast_address>\n";
+ std::cerr << " For IPv4, try:\n";
+ std::cerr << " sender 239.255.0.1\n";
+ std::cerr << " For IPv6, try:\n";
+ std::cerr << " sender ff31::8000:1234\n";
+ return 1;
+ }
+
+ asio::io_context io_context;
+ sender s(io_context, asio::ip::make_address(argv[1]));
+ io_context.run();
+ }
+ catch (std::exception& e)
+ {
+ std::cerr << "Exception: " << e.what() << "\n";
+ }
+
+ return 0;
+}