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#ifndef _XN_CYCLIC_QUEUE_T_H_
#define _XN_CYCLIC_QUEUE_T_H_
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnQueueT.h"
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
template<class T, XnUInt32 TDefaultMaxDepth, class TAlloc = XnLinkedNodeDefaultAllocatorT<T> >
class XnCyclicQueueT : protected XnQueueT<T, TAlloc>
{
public:
typedef XnQueueT<T, TAlloc> Base;
XnCyclicQueueT(XnUInt32 nMaxDepth = TDefaultMaxDepth) : Base(), m_nMaxDepth(nMaxDepth) {}
XnCyclicQueueT(const XnCyclicQueueT& other) : Base(other)
{
*this = other;
}
XnCyclicQueueT& operator=(const XnCyclicQueueT& other)
{
Base::operator=(other);
m_nMaxDepth = other.m_nMaxDepth;
return *this;
}
~XnCyclicQueueT() {}
using Base::ConstIterator;
using Base::IsEmpty;
using Base::Size;
XnStatus SetMaxSize(XnUInt32 nMaxSize)
{
XnStatus nRetVal = XN_STATUS_OK;
while (Size() > nMaxSize)
{
nRetVal = Remove(this->Begin());
XN_IS_STATUS_OK(nRetVal);
}
m_nMaxDepth = nMaxSize;
return (XN_STATUS_OK);
}
XnStatus Push(T const& value)
{
XnStatus nRetVal = XN_STATUS_OK;
if (Size() == m_nMaxDepth)
{
nRetVal = Remove(this->Begin());
XN_IS_STATUS_OK(nRetVal);
}
nRetVal = Base::Push(value);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
using Base::Pop;
using Base::Top;
using Base::Begin;
using Base::End;
protected:
XnUInt32 m_nMaxDepth;
};
#endif // _XN_CYCLIC_QUEUE_T_H_
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