Support for boost 1.70 in load tester (#2034)

nano/load_test/entry.cpp

@@ -14,6 +14,13 @@
 #include <iomanip>
 #include <random>
 
+/* Boost v1.70 introduced breaking changes; the conditional compilation allows 1.6x to be supported as well. */
+#if BOOST_VERSION < 107000
+using socket_type = boost::asio::ip::tcp::socket;
+#else
+using socket_type = boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::io_context::executor_type>;
+#endif
+
 namespace nano
 {
 void force_nano_test_network ();
@@ -149,7 +156,7 @@ class receive_session final : public std::enable_shared_from_this<receive_sessio
 	}
 
 private:
-	tcp::socket socket;
+	socket_type socket;
 	boost::asio::strand<boost::asio::io_context::executor_type> strand;
 	boost::beast::flat_buffer buffer;
 	http::request<http::string_body> req;
@@ -165,6 +172,7 @@ class send_session final : public std::enable_shared_from_this<send_session>
 {
 public:
 	send_session (boost::asio::io_context & ioc, std::atomic<int> & send_calls_remaining, std::string const & wallet, std::string const & source, std::string const & destination, tcp::resolver::results_type const & results) :
+	io_ctx (ioc),
 	socket (ioc),
 	strand (socket.get_executor ()),
 	send_calls_remaining (send_calls_remaining),
@@ -217,7 +225,7 @@ class send_session final : public std::enable_shared_from_this<send_session>
 					boost::property_tree::read_json (body, json);
 					auto block = json.get<std::string> ("block");
 
-					std::make_shared<receive_session> (this_l->socket.get_io_context (), this_l->send_calls_remaining, this_l->wallet, this_l->destination, block, this_l->results)->run ();
+					std::make_shared<receive_session> (this_l->io_ctx, this_l->send_calls_remaining, this_l->wallet, this_l->destination, block, this_l->results)->run ();
 
 					this_l->socket.shutdown (tcp::socket::shutdown_both, ec);
 					if (ec && ec != boost::system::errc::not_connected)
@@ -230,7 +238,8 @@ class send_session final : public std::enable_shared_from_this<send_session>
 	}
 
 private:
-	tcp::socket socket;
+	boost::asio::io_context & io_ctx;
+	socket_type socket;
 	boost::asio::strand<boost::asio::io_context::executor_type> strand;
 	boost::beast::flat_buffer buffer;
 	http::request<http::string_body> req;