winamp/Src/nde/LinkedList.h

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2024-09-24 12:54:57 +00:00
/* ---------------------------------------------------------------------------
Nullsoft Database Engine
--------------------
codename: Near Death Experience
--------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------
Double-Linked List Class Prototypes
--------------------------------------------------------------------------- */
#ifndef __LINKEDLIST_H
#define __LINKEDLIST_H
class LinkedListEntry
{
public:
LinkedListEntry *Next;
LinkedListEntry *Previous;
public:
LinkedListEntry *GetNext() const;
LinkedListEntry *GetPrevious() const;
LinkedListEntry();
virtual ~LinkedListEntry();
};
template <class T> class VListEntry : public LinkedListEntry
{
public:
void SetVal(T val)
{
Val = val;
}
T GetVal(void)
{
return Val;
}
private:
T Val;
};
template <class T> class PListEntry : public LinkedListEntry
{
public:
void SetVal(T *val)
{
Val = val;
}
T *GetVal(void)
{
return Val;
}
private:
T *Val;
};
typedef bool (*WalkListProc)(LinkedListEntry *Entry, int, void*, void*);
class LinkedList
{
protected:
int NElements;
LinkedListEntry *Head;
LinkedListEntry *Foot;
public:
LinkedList();
~LinkedList();
void AddEntry(LinkedListEntry *Entry, bool Cat);
void RemoveEntry(LinkedListEntry *Entry);
void WalkList(WalkListProc WalkProc, int ID, void *Data1, void *Data2);
int GetNElements(void) { return NElements; }
LinkedListEntry *GetHead(void) { return Head; }
LinkedListEntry *GetFoot(void) { return Foot; }
};
#endif