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/**
* \file
* \brief InterruptMaskingUnmaskingLock class header
*
* \author Copyright (C) 2014-2015 Kamil Szczygiel http://www.distortec.com http://www.freddiechopin.info
*
* \par License
* This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not
* distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDE_DISTORTOS_ARCHITECTURE_INTERRUPTMASKINGUNMASKINGLOCK_HPP_
#define INCLUDE_DISTORTOS_ARCHITECTURE_INTERRUPTMASKINGUNMASKINGLOCK_HPP_
#include "distortos/architecture/restoreInterruptMasking.hpp"
namespace distortos
{
namespace architecture
{
/**
* \brief InterruptMaskingUnmaskingLock class is a RAII wrapper for interrupt mask manipulation.
*
* \tparam Function is a reference to function which modifies interrupt mask and returns InterruptMask;
* enableInterruptMasking() or disableInterruptMasking() should be used
*/
template<InterruptMask (& Function)()>
class InterruptMaskingUnmaskingLock
{
public:
/**
* \brief InterruptMaskingUnmaskingLock's constructor
*
* Enables/disables interrupt masking, saving current interrupt mask for use in destructor.
*/
InterruptMaskingUnmaskingLock() :
interruptMask_{Function()}
{
}
/**
* \brief InterruptMaskingUnmaskingLock's destructor
*
* Restores previous interrupt masking state by restoring interrupt mask saved in constructor.
*/
~InterruptMaskingUnmaskingLock()
{
restoreInterruptMasking(interruptMask_);
}
InterruptMaskingUnmaskingLock(const InterruptMaskingUnmaskingLock&) = delete;
InterruptMaskingUnmaskingLock(InterruptMaskingUnmaskingLock&&) = delete;
InterruptMaskingUnmaskingLock& operator=(const InterruptMaskingUnmaskingLock&) = delete;
InterruptMaskingUnmaskingLock& operator=(InterruptMaskingUnmaskingLock&&) = delete;
private:
/// interrupt mask
const InterruptMask interruptMask_;
};
} // namespace architecture
} // namespace distortos
#endif // INCLUDE_DISTORTOS_ARCHITECTURE_INTERRUPTMASKINGUNMASKINGLOCK_HPP_
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