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107 lines
3.5 KiB
C++
107 lines
3.5 KiB
C++
///\file
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/******************************************************************************
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The MIT License(MIT)
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Embedded Template Library.
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Copyright(c) 2014 jwellbelove
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files(the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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******************************************************************************/
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#ifndef __ETL_QUEUE__
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#define __ETL_QUEUE__
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#include <stddef.h>
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#include <stdint.h>
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#include "iqueue.h"
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#include "container.h"
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#include "alignment.h"
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#include "array.h"
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//*****************************************************************************
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///\defgroup queue queue
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/// A First-in / first-out queue with the capacity defined at compile time,
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/// written in the STL style.
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///\ingroup containers
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//*****************************************************************************
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namespace etl
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{
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//***************************************************************************
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///\ingroup queue
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/// A fixed capacity queue.
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/// This queue does not support concurrent access by different threads.
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/// \tparam T The type this queue should support.
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/// \tparam SIZE The maximum capacity of the queue.
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//***************************************************************************
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template <typename T, const size_t SIZE>
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class queue : public iqueue<T>
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{
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public:
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//*************************************************************************
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/// Default constructor.
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//*************************************************************************
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queue()
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: iqueue<T>(reinterpret_cast<T*>(&buffer.value[0]), SIZE)
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{
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}
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//*************************************************************************
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/// Copy constructor
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//*************************************************************************
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queue(const queue& rhs)
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: iqueue<T>(reinterpret_cast<T*>(&buffer.value[0]), SIZE)
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{
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iqueue<T>::clone(rhs);
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}
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//*************************************************************************
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/// Destructor.
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//*************************************************************************
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~queue()
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{
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iqueue<T>::clear();
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}
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//*************************************************************************
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/// Assignment operator.
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//*************************************************************************
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queue& operator = (const queue& rhs)
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{
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if (&rhs != this)
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{
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iqueue<T>::clone(rhs);
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}
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return *this;
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}
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private:
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/// The unititialised buffer of T used in the stack.
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etl::align_as<array<uint8_t, SIZE * sizeof(T)>, T> buffer;
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};
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}
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#endif
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