OpenNI 1.5.4: XnQueueT.h Source File

00001 #ifndef _XN_QUEUE_T_H_
00002 #define _XN_QUEUE_T_H_ 
00003 
00004 //---------------------------------------------------------------------------
00005 // Includes
00006 //---------------------------------------------------------------------------
00007 #include <XnListT.h>
00008 
00009 //---------------------------------------------------------------------------
00010 // Code
00011 //---------------------------------------------------------------------------
00012 template<class T, class TAlloc = XnLinkedNodeDefaultAllocatorT<T> >
00013 class XnQueueT : protected XnListT<T, TAlloc>
00014 {
00015 public:
00016     typedef XnListT<T, TAlloc> Base;
00017 
00018     XnQueueT() : Base() {}
00019 
00020     XnQueueT(const XnQueueT& other) : Base() 
00021     {
00022         *this = other;
00023     }
00024 
00025     XnQueueT& operator=(const XnQueueT& other)
00026     {
00027         Base::operator=(other);
00028         // no other members
00029         return *this;
00030     }
00031 
00032     ~XnQueueT() {}
00033 
00034     using Base::ConstIterator;
00035     using Base::IsEmpty;
00036 
00037     XnStatus Push(T const& value) 
00038     { 
00039         return Base::AddLast(value); 
00040     }
00041 
00042     XnStatus Pop(T& value)
00043     {
00044         Iterator it = Begin();
00045         if (it == End())
00046         {
00047             return XN_STATUS_IS_EMPTY;
00048         }
00049         value = *it;
00050         return Base::Remove(it);
00051     }
00052 
00053     T const& Top() const { return *Begin(); }
00054     T& Top() { return *Begin(); }
00055 
00056     using Base::Begin;
00057     using Base::End;
00058     using Base::Size;
00059 };
00060 
00061 
00062 
00063 #endif // _XN_QUEUE_T_H_