74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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/***
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* cqueue.h - c circle queue c header
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*/
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#ifndef C_QUEUE_H
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#define C_QUEUE_H 1
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#if defined(__cplusplus)
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extern "C" {
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#endif
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enum {
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CQ_OK = 0,
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CQ_ERR,
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};
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typedef unsigned char CQItemType;
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typedef struct __CQueue
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{
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int read;
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int write;
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int size;
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int len;
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CQItemType *base;
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}CQueue;
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/* Init Queue */
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int InitCQueue(CQueue *Q, unsigned int size, CQItemType *buf);
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/* Is Queue Empty */
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int IsEmptyCQueue(CQueue *Q);
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/* Filled Length Of Queue */
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int LengthOfCQueue(CQueue *Q);
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/* Empty Length Of Queue */
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int AvailableOfCQueue(CQueue *Q);
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/* Push Data Into Queue (Tail) */
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int EnCQueue(CQueue *Q, CQItemType *e, unsigned int len);
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/* Push Data Into Queue (Tail) */
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int EnCQueue_AI(CQueue *Q, CQItemType *e, unsigned int len);
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/* Push Data Into Front Of Queue */
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int EnCQueueFront(CQueue *Q, CQItemType *e, unsigned int len);
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/* Pop Data Data From Queue (Front) */
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int DeCQueue(CQueue *Q, CQItemType *e, unsigned int len);
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/* Peek But Not Pop Data From Queue (Front) */
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int PeekCQueue(CQueue *Q, unsigned int len_want, CQItemType **e1, unsigned int *len1, CQItemType **e2, unsigned int *len2);
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/* Peek data to buf e, But Not Pop Data From Queue (Front) */
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int PeekCQueueToBuf(CQueue *Q, CQItemType *e, unsigned int len);
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int PullCQueue(CQueue *Q, CQItemType *e, unsigned int len);
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/* Dump Queue */
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int DumpCQueue(CQueue *Q);
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void ResetCQueue(CQueue *Q);
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#if defined(__cplusplus)
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}
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#endif
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#endif /* C_QUEUE_H */
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