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/**
* \file
* \brief StaticRawMessageQueue class header
*
* \author Copyright (C) 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_STATICRAWMESSAGEQUEUE_HPP_
#define INCLUDE_DISTORTOS_STATICRAWMESSAGEQUEUE_HPP_
#include "distortos/RawMessageQueue.hpp"
#include "distortos/internal/memory/dummyDeleter.hpp"
namespace distortos
{
/**
* \brief StaticRawMessageQueue class is a variant of RawMessageQueue that has automatic storage for queue's contents.
*
* \tparam T is the type of data in queue
* \tparam QueueSize is the maximum number of elements in queue
*
* \ingroup queues
*/
template<typename T, size_t QueueSize>
class StaticRawMessageQueue : public RawMessageQueue
{
public:
/**
* \brief StaticRawMessageQueue's constructor
*/
explicit StaticRawMessageQueue() :
RawMessageQueue{{entryStorage_.data(), internal::dummyDeleter<EntryStorage>},
{valueStorage_.data(), internal::dummyDeleter<ValueStorage<T>>}, sizeof(*valueStorage_.data()),
valueStorage_.size()}
{
}
private:
/// storage for queue's entries
std::array<EntryStorage, QueueSize> entryStorage_;
/// storage for queue's contents
std::array<ValueStorage<T>, QueueSize> valueStorage_;
};
/**
* \brief StaticRawMessageQueueFromSize type alias is a variant of StaticRawMessageQueue which uses size of element
* (instead of type) as template argument.
*
* \tparam ElementSize is the size of single queue element, bytes
* \tparam QueueSize is the maximum number of elements in queue
*/
template<size_t ElementSize, size_t QueueSize>
using StaticRawMessageQueueFromSize =
StaticRawMessageQueue<typename std::aligned_storage<ElementSize, ElementSize>::type, QueueSize>;
} // namespace distortos
#endif // INCLUDE_DISTORTOS_STATICRAWMESSAGEQUEUE_HPP_
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