Last change
on this file was 142, checked in by ktk, 25 years ago |
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[142] | 1 | /* $Id: queue.hpp 142 2000-04-23 14:55:46Z ktk $ */
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| 2 |
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| 3 | /* SCCSID = %W% %E% */
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| 4 | /****************************************************************************
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| 5 | * *
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| 6 | * Copyright (c) IBM Corporation 1994 - 1997. *
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| 7 | * *
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| 8 | * The following IBM OS/2 source code is provided to you solely for the *
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| 9 | * the purpose of assisting you in your development of OS/2 device drivers. *
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| 10 | * You may use this code in accordance with the IBM License Agreement *
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| 11 | * provided in the IBM Device Driver Source Kit for OS/2. *
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| 12 | * *
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| 13 | ****************************************************************************/
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| 14 | /**@internal %W%
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| 15 | * Defines, class definations and prototypes for
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| 16 | * @version %I%
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| 17 | * @context Unless otherwise noted, all interfaces are Ring-0, 16-bit,
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| 18 | * <stack context>.
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| 19 | * @history
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| 20 | *
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| 21 | */
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| 22 | #ifndef QUEUE_INCLUDED
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| 23 | #define QUEUE_INCLUDED
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| 24 |
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| 25 | #ifndef OS2_INCLUDED
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| 26 | #define INCL_NOPMAPI
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| 27 | #include <os2.h>
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| 28 | #endif
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| 29 |
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| 30 | class QUEUEELEMENT {
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| 31 |
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| 32 | public:
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| 33 | QUEUEELEMENT *pNext; // next element on the queue
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| 34 | QUEUEELEMENT(void):
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| 35 | pNext(NULL)
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| 36 | {};
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| 37 | };
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| 38 | typedef QUEUEELEMENT *PQUEUEELEMENT;
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| 39 |
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| 40 | class QUEUEHEAD {
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| 41 | public:
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| 42 | PQUEUEELEMENT Head(void);
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| 43 | PQUEUEELEMENT Tail(void);
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| 44 | void PushOnHead(PQUEUEELEMENT);
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| 45 | void PushOnTail(PQUEUEELEMENT);
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| 46 | PQUEUEELEMENT PopHead(void);
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| 47 | PQUEUEELEMENT PopTail(void);
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| 48 | USHORT DestroyElement(PQUEUEELEMENT);
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| 49 | PQUEUEELEMENT PopElement(PQUEUEELEMENT);
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| 50 | ULONG IsElements(void);
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| 51 | QUEUEHEAD(void);
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| 52 | private:
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| 53 | PQUEUEELEMENT pHead;
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| 54 | PQUEUEELEMENT pTail;
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| 55 | };
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| 56 | typedef QUEUEHEAD *PQUEUEHEAD;
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| 57 | #endif
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