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68 lines
2.4 KiB
68 lines
2.4 KiB
// --------------------------------------------------------------------------
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// Module Name: Queue.h
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//
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// Copyright (c) 1999-2000, Microsoft Corporation
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//
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// This file contains a class to handle a queue element and a class to handle
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// a queue of queue elements.
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//
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// History: 1999-11-07 vtan created
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// 2000-08-25 vtan moved from Neptune to Whistler
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// --------------------------------------------------------------------------
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#ifndef _Queue_
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#define _Queue_
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#include "DynamicObject.h"
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#include "KernelResources.h"
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// --------------------------------------------------------------------------
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// CQueueElement
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//
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// Purpose: This is the queue element base class. It contains a field
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// which the queue manages.
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//
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// History: 1999-11-07 vtan created
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// 2000-08-25 vtan moved from Neptune to Whistler
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// --------------------------------------------------------------------------
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class CQueueElement : public CDynamicObject
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{
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private:
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friend class CQueue;
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public:
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CQueueElement (void);
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virtual ~CQueueElement (void);
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private:
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CQueueElement* _pNextElement;
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};
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// --------------------------------------------------------------------------
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// CQueue
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//
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// Purpose: This is the queue manager class. It manages queue elements.
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// Because the queue may be called from two threads that act on
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// the same object (one thread reads the queue to process
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// requests and the other adds to the queue to queue requests)
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// a critical section is required to process queue manipulation.
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//
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// History: 1999-11-07 vtan created
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// 2000-08-25 vtan moved from Neptune to Whistler
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// --------------------------------------------------------------------------
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class CQueue
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{
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public:
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CQueue (void);
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~CQueue (void);
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void Add (CQueueElement *pQueueElement);
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void Remove (void);
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CQueueElement* Get (void) const;
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private:
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CQueueElement* _pQueue;
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CCriticalSection _lock;
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};
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#endif /* _Queue_ */
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