mirror of
https://gitee.com/moluo-tech/AT-Command
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101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
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/*******************************************************************************
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* @brief <EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(queue link)<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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*
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* Copyright (c) 2017~2020, <morro_luo@163.com>
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*
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* SPDX-License-Identifier: Apache-2.0
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* Change Logs
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* Date Author Notes
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* 2016-06-24 Morro <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
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* 2018-03-17 Morro <EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD>ͳ<EFBFBD>ƹ<EFBFBD><EFBFBD><EFBFBD>
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*******************************************************************************/
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#ifndef _QLINK_H_
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#define _QLINK_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stddef.h>
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/*<2A><>ʽ<EFBFBD><CABD><EFBFBD>н<EFBFBD><D0BD><EFBFBD> ---------------------------------------------------------------*/
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struct qlink_node {
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struct qlink_node *next;
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};
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/*<2A><>ʽ<EFBFBD><CABD><EFBFBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD> -------------------------------------------------------------*/
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struct qlink {
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unsigned int count;
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struct qlink_node *front, *rear;
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};
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/*******************************************************************************
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* @brief <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @param[in] q - <EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return none
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******************************************************************************/
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static inline void qlink_init(struct qlink *q)
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{
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q->front = q->rear= NULL;
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q->count = 0;
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}
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/*******************************************************************************
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* @brief <EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD>
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* @param[in] q - <EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return nond
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******************************************************************************/
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static inline void qlink_put(struct qlink *q, struct qlink_node *n)
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{
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if (q->count == 0)
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q->front = n;
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else
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q->rear->next = n;
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q->rear = n;
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n->next = NULL;
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q->count++;
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}
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/*******************************************************************************
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* @brief Ԥ<EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD>(<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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* @param[in] q - <EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return nond
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******************************************************************************/
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static inline struct qlink_node *qlink_peek(struct qlink *q)
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{
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return q->front;
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}
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/*******************************************************************************
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* @brief <EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD>
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* @param[in] q - <EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return nond
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******************************************************************************/
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static inline struct qlink_node *qlink_get(struct qlink *q)
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{
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struct qlink_node *n;
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if (q->count == 0)
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return NULL;
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n = q->front;
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q->front = q->front->next;
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q->count--;
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return n;
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}
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/*******************************************************************************
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* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԫ<EFBFBD>ظ<EFBFBD><EFBFBD><EFBFBD>
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* @param[in] q - <EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* @return nond
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******************************************************************************/
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static inline int qlink_count(struct qlink *q)
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{
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return q->count;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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