46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
/*
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* \brief Test for changing configuration at runtime
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* \author Norman Feske
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* \author Martin Stein
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* \date 2012-04-04
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*/
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/*
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* Copyright (C) 2012-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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#include <base/component.h>
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#include <base/attached_rom_dataspace.h>
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using namespace Genode;
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struct Main
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{
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Env &env;
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Attached_rom_dataspace config { env, "config" };
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Signal_handler<Main> config_handler { env.ep(), *this, &Main::handle_config };
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void handle_config()
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{
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config.update();
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try {
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Xml_node const counter = config.xml().sub_node("counter");
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counter.with_raw_content([&] (char const *start, size_t length) {
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log("obtained counter value ", Cstring(start, length), " from config"); });
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}
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catch (...) { error("could not parse configuration"); }
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}
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Main(Env &env) : env(env)
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{
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handle_config();
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config.sigh(config_handler);
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}
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};
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void Component::construct(Env &env) { static Main main(env); }
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