60 lines
2.7 KiB
C
60 lines
2.7 KiB
C
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/**
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******************************************************************************
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* @file util_buffer.h
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* @brief This is the header file for "util_buffer.c".
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*
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* @copyright (c) 2021 DJI. All rights reserved.
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*
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* All information contained herein is, and remains, the property of DJI.
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* The intellectual and technical concepts contained herein are proprietary
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* to DJI and may be covered by U.S. and foreign patents, patents in process,
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* and protected by trade secret or copyright law. Dissemination of this
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* information, including but not limited to data and other proprietary
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* material(s) incorporated within the information, in any form, is strictly
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* prohibited without the express written consent of DJI.
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*
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* If you receive this source code without DJI’s authorization, you may not
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* further disseminate the information, and you must immediately remove the
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* source code and notify DJI of its removal. DJI reserves the right to pursue
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* legal actions against you for any loss(es) or damage(s) caused by your
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* failure to do so.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef _DJI_UTIL_BUFFER_H_
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#define _DJI_UTIL_BUFFER_H_
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/* Includes ------------------------------------------------------------------*/
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#include <stdint.h>
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/* Exported constants --------------------------------------------------------*/
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/* Exported macros -----------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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//Note: not need lock for just one producer / one consumer
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//need mutex to protect for multi-producer / multi-consumer
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typedef struct {
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uint8_t *bufferPtr;
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uint16_t bufferSize;
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uint16_t readIndex;
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uint16_t writeIndex;
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} T_UtilBuffer;
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/* Exported variables --------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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void UtilBuffer_Init(T_UtilBuffer *pthis, uint8_t *pBuf, uint16_t bufSize);
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uint16_t UtilBuffer_Put(T_UtilBuffer *pthis, const uint8_t *pData, uint16_t dataLen);
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uint16_t UtilBuffer_Get(T_UtilBuffer *pthis, uint8_t *pData, uint16_t dataLen);
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uint16_t UtilBuffer_GetUnusedSize(T_UtilBuffer *pthis);
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/* Private constants ---------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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#endif
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