/*
 # Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
 #
 # This program is free software distributed under the GPL version 2.
 # See http://openslx.org/COPYING
 #
 # If you have any feedback please consult http://openslx.org/feedback and
 # send your suggestions, praise, or complaints to feedback@openslx.org
 #
 # General information about OpenSLX can be found at http://openslx.org/
 # --------------------------------------------------------------------------
 # magicSysRqHandler.h
 #  - Trigger Magic-SysRq functions - interface
 # --------------------------------------------------------------------------
 */

#ifndef MAGICSYSRQHANDLER_H_
#define MAGICSYSRQHANDLER_H_

#include "inputEventHandler.h"

/**
 * Emulate the magic SysRq-Key on Linux.
 */
class MagicSysRqHandler : public InputEventHandler<
	input_policy::Match<InputEvent::ET_SPECIAL, InputEvent::EC_SYSRQ>,
	input_policy::Require<input_policy::LinuxSystem> >
{
public:

	/**
	 * Send the least significant byte of \c evt's InputEvent::value()
	 * to the magic \c /proc/sysrq-trigger file.
	 */
	void doHandle(InputEvent const& evt, InputEventContext const* ctx);
};

#endif /* MAGICSYSRQHANDLER_H_ */