Add websocket-server-async example

2017-07-20 08:15:29 -07:00
parent c12ded9abc
commit 6b6c2e0f93
8 changed files with 563 additions and 0 deletions
@@ -0,0 +1,56 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail 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)
+//
+
+#ifndef BEAST_EXAMPLE_COMMON_HELPERS_HPP
+#define BEAST_EXAMPLE_COMMON_HELPERS_HPP
+
+#include <boost/asio/io_service.hpp>
+#include <boost/asio/signal_set.hpp>
+#include <ostream>
+#include <sstream>
+
+/// Block until SIGINT or SIGTERM is received.
+inline
+void
+sig_wait()
+{
+    boost::asio::io_service ios{1};
+    boost::asio::signal_set signals(ios, SIGINT, SIGTERM);
+    signals.async_wait([&](boost::system::error_code const&, int){});
+    ios.run();
+}
+
+namespace detail {
+
+inline
+void
+print_1(std::ostream&)
+{
+}
+
+template<class T1, class... TN>
+void
+print_1(std::ostream& os, T1 const& t1, TN const&... tn)
+{
+    os << t1;
+    print_1(os, tn...);
+}
+
+} // detail
+
+// compose a string to std::cout or std::cerr atomically
+//
+template<class...Args>
+void
+print(std::ostream& os, Args const&... args)
+{
+    std::stringstream ss;
+    detail::print_1(ss, args...);
+    os << ss.str() << std::endl;
+}
+
+#endif