genode/base/include/util/touch.h
2013-01-10 21:44:47 +01:00

36 lines
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C++

/*
* \brief Memory touch helpers
* \author Norman Feske
* \date 2007-04-29
*/
/*
* Copyright (C) 2007-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _INCLUDE__UTIL__TOUCH_H_
#define _INCLUDE__UTIL__TOUCH_H_
#include <base/printf.h>
namespace Genode {
/** Touch one byte at address read only */
inline void touch_read(unsigned char const volatile *addr)
{
(void)*addr;
}
/** Touch one byte at address read/write */
inline void touch_read_write(unsigned char volatile *addr)
{
unsigned char v = *addr;
*addr = v;
}
}
#endif /* _INCLUDE__UTIL__TOUCH_H_ */