genode/repos/base/include/base/lock.h
2015-04-09 16:04:45 +02:00

45 lines
763 B
C++

/*
* \brief Locking primitives
* \author Norman Feske
* \date 2006-07-26
*/
/*
* Copyright (C) 2006-2013 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__BASE__LOCK_H_
#define _INCLUDE__BASE__LOCK_H_
#include <base/cancelable_lock.h>
namespace Genode { class Lock; }
struct Genode::Lock : Cancelable_lock
{
/**
* 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_ */