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77 lines
1.8 KiB
77 lines
1.8 KiB
#ifndef NAC_LIST_H
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#define NAC_LIST_H
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#include <wtypes.h>
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// generic List template to be used as
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// a Queue or Stack
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template <class T> class NacList
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{
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private:
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typedef T *PTR_T;
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typedef T **PTR_PTR_T;
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T *m_aElements; // array of pointers
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int m_nSize; // number of Appended elements
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int m_nHeadIndex;
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int m_nTotalSize; // total size of queue (used+unsed slots)
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int m_nGrowthRate;
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int Grow();
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public:
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NacList(int nInitialSize, int nGrowthRate);
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~NacList();
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bool PeekFront(T *ptr); // returns list's front (doesn't remove)
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bool PeekRear(T *ptr); // returns list's rear (doesn't remove)
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bool PushFront(const T &t); // adds to the front of the list
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bool PushRear(const T &t); // adds to the rear of the list
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bool PopFront(T *ptr); // returns and removes list's front
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bool PopRear(T *ptr); // returns and removes list's rear
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void Flush(); // marks as list empty
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inline int Size() {return m_nSize;}
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};
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// Thread safe version of above
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template <class T> class ThreadSafeList : public NacList<T>
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{
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private:
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CRITICAL_SECTION m_cs;
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public:
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ThreadSafeList(int nInitialSize, int nGrowthRate);
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~ThreadSafeList();
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bool PeekFront(T *ptr); // returns list's front (doesn't remove)
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bool PeekRear(T *ptr); // returns list's rear (doesn't remove)
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bool PushFront(const T &t); // adds to the front of the list
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bool PushRear(const T &t); // adds to the rear of the list
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bool PopFront(T *ptr); // returns and removes list's front
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bool PopRear(T *ptr); // returns and removes list's rear
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void Flush();
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int Size();
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// note: we don't inherit "Grow" because it will only get
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// called while we are in the Critical SEction
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};
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#endif
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