genode/base/include/base/lock.h

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2011-12-22 15:19:25 +00:00
/*
* \brief Locking primitives
* \author Norman Feske
* \date 2006-07-26
*/
/*
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* Copyright (C) 2006-2012 Genode Labs GmbH
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*
* 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__BASE__LOCK_H_
#define _INCLUDE__BASE__LOCK_H_
#include <base/cancelable_lock.h>
namespace Genode {
class Lock : public Cancelable_lock
{
public:
/**
* Constructor
*/
explicit Lock(State initial = UNLOCKED)
: Cancelable_lock(initial) { }
void lock()
{
while (1)
try {
Cancelable_lock::lock();
return;
} catch (Blocking_canceled) { }
}
/**
* Lock guard
*/
typedef Lock_guard<Lock> Guard;
};
}
#endif /* _INCLUDE__BASE__LOCK_H_ */