8243329ad4
Originally, the convenience utility for accessing a process configuration came in the form of a header file. But this causes aliasing problems if multiple compilation units access the config while the configuration gets dynamically updated. Moving the implementation of the accessor to the singleton object into a library solves those problems.
67 lines
1.2 KiB
C++
67 lines
1.2 KiB
C++
/*
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* \brief Access to process configuration
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* \author Norman Feske
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* \date 2010-05-04
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*/
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/*
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* Copyright (C) 2010-2013 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 General Public License version 2.
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*/
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#ifndef _INCLUDE__OS__CONFIG_H_
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#define _INCLUDE__OS__CONFIG_H_
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#include <rom_session/connection.h>
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#include <dataspace/client.h>
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#include <util/xml_node.h>
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#include <base/exception.h>
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namespace Genode {
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class Config;
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/**
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* Return singleton instance of config
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*/
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Config *config();
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}
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class Genode::Config
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{
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private:
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Rom_connection _config_rom;
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Dataspace_capability _config_ds;
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Xml_node _config_xml;
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public:
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/**
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* Constructor
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*/
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Config();
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Xml_node xml_node();
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/**
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* Register signal handler for tracking config modifications
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*/
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void sigh(Signal_context_capability cap);
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/**
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* Reload configuration
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*
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* \throw Invalid if the new configuration has an invalid syntax
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*
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* This function is meant to be called as response to a signal
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* received by the signal handler as registered via 'sigh()'.
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*/
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void reload();
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};
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#endif /* _INCLUDE__OS__CONFIG_H_ */
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