Finalized new TCP networking API

lib/network/NetworkHandler.cpp

@@ -0,0 +1,57 @@
+/*
+ * NetworkHandler.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+#include "NetworkHandler.h"
+
+#include "NetworkClient.h"
+#include "NetworkServer.h"
+
+VCMI_LIB_NAMESPACE_BEGIN
+
+std::unique_ptr<INetworkHandler> INetworkHandler::createHandler()
+{
+	return std::make_unique<NetworkHandler>();
+}
+
+NetworkHandler::NetworkHandler()
+	: io(std::make_shared<NetworkContext>())
+{}
+
+std::unique_ptr<INetworkServer> NetworkHandler::createServerTCP(INetworkServerListener & listener)
+{
+	return std::make_unique<NetworkServer>(listener, io);
+}
+
+std::unique_ptr<INetworkClient> NetworkHandler::createClientTCP(INetworkClientListener & listener)
+{
+	return std::make_unique<NetworkClient>(listener, io);
+}
+
+void NetworkHandler::run()
+{
+	boost::asio::executor_work_guard<decltype(io->get_executor())> work{io->get_executor()};
+	io->run();
+}
+
+void NetworkHandler::createTimer(INetworkTimerListener & listener, std::chrono::milliseconds duration)
+{
+	auto timer = std::make_shared<NetworkTimer>(*io, duration);
+	timer->async_wait([&listener, timer](const boost::system::error_code& error){
+		if (!error)
+			listener.onTimer();
+	});
+}
+
+void NetworkHandler::stop()
+{
+	io->stop();
+}
+
+VCMI_LIB_NAMESPACE_END