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120 lines
3.3 KiB
120 lines
3.3 KiB
/////////////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1998 Active Voice Corporation. All Rights Reserved.
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//
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// Active Agent(r) and Unified Communications(tm) are trademarks of Active Voice Corporation.
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//
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// Other brand and product names used herein are trademarks of their respective owners.
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//
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// The entire program and user interface including the structure, sequence, selection,
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// and arrangement of the dialog, the exclusively "yes" and "no" choices represented
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// by "1" and "2," and each dialog message are protected by copyrights registered in
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// the United States and by international treaties.
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//
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// Protected by one or more of the following United States patents: 5,070,526, 5,488,650,
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// 5,434,906, 5,581,604, 5,533,102, 5,568,540, 5,625,676, 5,651,054.
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//
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// Active Voice Corporation
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// Seattle, Washington
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// USA
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//
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/////////////////////////////////////////////////////////////////////////////////////////
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////
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// queue.h - interface for queue functions in queue.c
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////
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#ifndef __QUEUE_H__
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#define __QUEUE_H__
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#include "winlocal.h"
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#define QUEUE_VERSION 0x00000100
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// handle to a queue
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//
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DECLARE_HANDLE32(HQUEUE);
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// queue data element
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//
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typedef LPVOID QUEUEELEM;
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#ifdef __cplusplus
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extern "C" {
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#endif
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////
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// queue constructor and destructor functions
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////
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// QueueCreate - queue constructor
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// <dwVersion> (i) must be QUEUE_VERSION
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// <hInst> (i) instance handle of calling module
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// return new queue handle (NULL if error)
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//
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HQUEUE DLLEXPORT WINAPI QueueCreate(DWORD dwVersion, HINSTANCE hInst);
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// QueueDestroy - queue destructor
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// <hQueue> (i) handle returned from QueueCreate
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// return 0 if success
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//
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int DLLEXPORT WINAPI QueueDestroy(HQUEUE hQueue);
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////
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// queue status functions
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////
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// QueueGetCount - return count of nodes in queue
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// <hQueue> (i) handle returned from QueueCreate
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// return node count (-1 if error)
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//
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long DLLEXPORT WINAPI QueueGetCount(HQUEUE hQueue);
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// QueueIsEmpty - return TRUE if queue has no nodes
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// <hQueue> (i) handle returned from QueueCreate
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// return TRUE or FALSE
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//
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BOOL DLLEXPORT WINAPI QueueIsEmpty(HQUEUE hQueue);
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////
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// queue element insertion functions
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////
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// QueueAddTail - add new node with data <elem> to end of queue
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// <hQueue> (i) handle returned from QueueCreate
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// <elem> (i) new data element
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// returns 0 if success
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//
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int DLLEXPORT WINAPI QueueAddTail(HQUEUE hQueue, QUEUEELEM elem);
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////
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// queue element removal functions
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////
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// QueueRemoveHead - remove node from head of queue
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// <hQueue> (i) handle returned from QueueCreate
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// returns removed data element (NULL of error or empty)
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//
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QUEUEELEM DLLEXPORT WINAPI QueueRemoveHead(HQUEUE hQueue);
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// QueueRemoveAll - remove all nodes from queue
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// <hQueue> (i) handle returned from QueueCreate
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// return 0 if success
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//
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int DLLEXPORT WINAPI QueueRemoveAll(HQUEUE hQueue);
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////
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// queue element get value functions
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////
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// QueuePeek - return node from head of queue, but leave it on queue
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// <hQueue> (i) handle returned from QueueCreate
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// returns data element (NULL if error or empty)
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//
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QUEUEELEM DLLEXPORT WINAPI QueuePeek(HQUEUE hQueue);
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#ifdef __cplusplus
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}
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#endif
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#endif // __QUEUE_H__
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